xtrans libX11 libXext libXdmcp libXau libXft libXinerama libXmu libfontenc

mesa git update 19 sept 2011
author: marha <marha@users.sourceforge.net> 2011-09-19 13:23:24 +0200
committer: marha <marha@users.sourceforge.net> 2011-09-19 13:23:24 +0200
commit: b2c925e360e2c366526de15b44603f855f94139c (patch)
tree: 2a963073645913b7c6d43fa04dc0aa13bda57b80 /mesalib/src/mesa/main
parent: 18ae1470a8dbcfe369ddf0d7e17e0ea665251ccd (diff)
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18 files changed, 2362 insertions, 5850 deletions
diff --git a/mesalib/src/mesa/main/dd.h b/mesalib/src/mesa/main/dd.h
index d6cc0196d..720e4f53d 100644
--- a/mesalib/src/mesa/main/dd.h
+++ b/mesalib/src/mesa/main/dd.h
@@ -476,6 +476,16 @@ struct dd_function_table {
     */
    struct gl_texture_image * (*NewTextureImage)( struct gl_context *ctx );
 
+   /** Called to free a texture image object returned by NewTextureImage() */
+   void (*DeleteTextureImage)(struct gl_context *ctx,
+                              struct gl_texture_image *);
+
+   /** Called to allocate memory for a single texture image */
+   GLboolean (*AllocTextureImageBuffer)(struct gl_context *ctx,
+                                        struct gl_texture_image *texImage,
+                                        gl_format format, GLsizei width,
+                                        GLsizei height, GLsizei depth);
+
    /** 
     * Called to free tImage->Data.
     */
diff --git a/mesalib/src/mesa/main/format_unpack.c b/mesalib/src/mesa/main/format_unpack.c
index c5146f72d..dadff0556 100644
--- a/mesalib/src/mesa/main/format_unpack.c
+++ b/mesalib/src/mesa/main/format_unpack.c
@@ -921,7 +921,11 @@ unpack_SIGNED_R16(const void *src, GLfloat dst[4])
 static void
 unpack_SIGNED_GR1616(const void *src, GLfloat dst[4])
 {
-   /* XXX TODO */
+   const GLuint s = *((const GLuint *) src);
+   dst[RCOMP] = SHORT_TO_FLOAT_TEX( s & 0xffff );
+   dst[GCOMP] = SHORT_TO_FLOAT_TEX( s >> 16 );
+   dst[BCOMP] = 0.0F;
+   dst[ACOMP] = 1.0F;
 }
 
 static void
@@ -947,7 +951,7 @@ unpack_SIGNED_RGBA_16(const void *src, GLfloat dst[4])
 static void
 unpack_RGBA_16(const void *src, GLfloat dst[4])
 {
-   const GLshort *s = (const GLshort *) src;
+   const GLushort *s = (const GLushort *) src;
    dst[RCOMP] = USHORT_TO_FLOAT( s[0] );
    dst[GCOMP] = USHORT_TO_FLOAT( s[1] );
    dst[BCOMP] = USHORT_TO_FLOAT( s[2] );
diff --git a/mesalib/src/mesa/main/mipmap.c b/mesalib/src/mesa/main/mipmap.c
index 869243d1c..f170d235a 100644
--- a/mesalib/src/mesa/main/mipmap.c
+++ b/mesalib/src/mesa/main/mipmap.c
@@ -1955,23 +1955,17 @@ generate_mipmap_uncompressed(struct gl_context *ctx, GLenum target,
                                  dstDepth, border, srcImage->InternalFormat,
                                  srcImage->TexFormat);
       dstImage->DriverData = NULL;
-      dstImage->FetchTexelc = srcImage->FetchTexelc;
-      dstImage->FetchTexelf = srcImage->FetchTexelf;
 
-      /* Alloc new teximage data buffer */
-      {
-         GLuint size = _mesa_format_image_size(dstImage->TexFormat,
-                                               dstWidth, dstHeight, dstDepth);
-         dstImage->Data = _mesa_alloc_texmemory(size);
-         if (!dstImage->Data) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
-            return;
-         }
+      /* Alloc storage for new texture image */
+      if (!ctx->Driver.AllocTextureImageBuffer(ctx, dstImage,
+                                               dstImage->TexFormat,
+                                               dstWidth, dstHeight,
+                                               dstDepth)) {
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
+         return;
       }
 
       ASSERT(dstImage->TexFormat);
-      ASSERT(dstImage->FetchTexelc);
-      ASSERT(dstImage->FetchTexelf);
 
       _mesa_generate_mipmap_level(target, datatype, comps, border,
                                   srcWidth, srcHeight, srcDepth,
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 8671ecda9..429c8b430 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -1253,37 +1253,6 @@ typedef enum
 
 
 /**
- * Texel fetch function prototype.  We use texel fetch functions to
- * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
- * texture images.  These functions help to isolate us from the gritty
- * details of all the various texture image encodings.
- * 
- * \param texImage texture image.
- * \param col texel column.
- * \param row texel row.
- * \param img texel image level/layer.
- * \param texelOut output texel (up to 4 GLchans)
- */
-typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,
-                                 GLint col, GLint row, GLint img,
-                                 GLchan *texelOut );
-
-/**
- * As above, but returns floats.
- * Used for depth component images and for upcoming signed/float
- * texture images.
- */
-typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,
-                                 GLint col, GLint row, GLint img,
-                                 GLfloat *texelOut );
-
-
-typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage,
-                               GLint col, GLint row, GLint img,
-                               const void *texel);
-
-
-/**
  * Texture image state.  Describes the dimensions of a texture image,
  * the texel format and pointers to Texel Fetch functions.
  */
@@ -1320,9 +1289,6 @@ struct gl_texture_image
    /** Cube map face: index into gl_texture_object::Image[] array */
    GLuint Face;
 
-   FetchTexelFuncC FetchTexelc;	/**< GLchan texel fetch function pointer */
-   FetchTexelFuncF FetchTexelf;	/**< Float texel fetch function pointer */
-
    GLuint RowStride;		/**< Padded width in units of texels */
    GLuint *ImageOffsets;        /**< if 3D texture: array [Depth] of offsets to
                                      each 2D slice in 'Data', in texels */
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c
index 4e5c14cbb..b49d1b1ca 100644
--- a/mesalib/src/mesa/main/texcompress.c
+++ b/mesalib/src/mesa/main/texcompress.c
@@ -40,6 +40,7 @@
 #include "texcompress_fxt1.h"
 #include "texcompress_rgtc.h"
 #include "texcompress_s3tc.h"
+#include "swrast/s_context.h"
 
 
 /**
@@ -451,15 +452,15 @@ _mesa_decompress_image(gl_format format, GLuint width, GLuint height,
                        const GLubyte *src, GLint srcRowStride,
                        GLfloat *dest)
 {
-   void (*fetch)(const struct gl_texture_image *texImage,
+   void (*fetch)(const struct swrast_texture_image *texImage,
                  GLint i, GLint j, GLint k, GLfloat *texel);
-   struct gl_texture_image texImage;  /* dummy teximage */
+   struct swrast_texture_image texImage;  /* dummy teximage */
    GLuint i, j;
 
    /* setup dummy texture image info */
    memset(&texImage, 0, sizeof(texImage));
-   texImage.Data = (void *) src;
-   texImage.RowStride = srcRowStride;
+   texImage.Base.Data = (void *) src;
+   texImage.Base.RowStride = srcRowStride;
 
    switch (format) {
    /* DXT formats */
diff --git a/mesalib/src/mesa/main/texcompress_fxt1.c b/mesalib/src/mesa/main/texcompress_fxt1.c
index 261014d63..a75487ce2 100644
--- a/mesalib/src/mesa/main/texcompress_fxt1.c
+++ b/mesalib/src/mesa/main/texcompress_fxt1.c
@@ -1,1651 +1,1652 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file texcompress_fxt1.c
- * GL_3DFX_texture_compression_FXT1 support.
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "colormac.h"
-#include "image.h"
-#include "macros.h"
-#include "mfeatures.h"
-#include "mipmap.h"
-#include "texcompress.h"
-#include "texcompress_fxt1.h"
-#include "texstore.h"
-
-
-#if FEATURE_texture_fxt1
-
-
-static void
-fxt1_encode (GLuint width, GLuint height, GLint comps,
-             const void *source, GLint srcRowStride,
-             void *dest, GLint destRowStride);
-
-void
-fxt1_decode_1 (const void *texture, GLint stride,
-               GLint i, GLint j, GLchan *rgba);
-
-
-/**
- * Store user's image in rgb_fxt1 format.
- */
-GLboolean
-_mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
-{
-   const GLchan *pixels;
-   GLint srcRowStride;
-   GLubyte *dst;
-   const GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
-   const GLchan *tempImage = NULL;
-
-   ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1);
-   ASSERT(dstXoffset % 8 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset     == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-   if (srcFormat != GL_RGB ||
-       srcType != CHAN_TYPE ||
-       ctx->_ImageTransferState ||
-       srcPacking->SwapBytes) {
-      /* convert image to RGB/GLchan */
-      tempImage = _mesa_make_temp_chan_image(ctx, dims,
-                                             baseInternalFormat,
-                                             _mesa_get_format_base_format(dstFormat),
-                                             srcWidth, srcHeight, srcDepth,
-                                             srcFormat, srcType, srcAddr,
-                                             srcPacking);
-      if (!tempImage)
-         return GL_FALSE; /* out of memory */
-      pixels = tempImage;
-      srcRowStride = 3 * srcWidth;
-      srcFormat = GL_RGB;
-   }
-   else {
-      pixels = (const GLchan *) srcAddr;
-      srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
-                                            srcType) / sizeof(GLchan);
-   }
-
-   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-                                        dstFormat,
-                                        texWidth, (GLubyte *) dstAddr);
-
-   fxt1_encode(srcWidth, srcHeight, 3, pixels, srcRowStride,
-               dst, dstRowStride);
-
-   if (tempImage)
-      free((void*) tempImage);
-
-   return GL_TRUE;
-}
-
-
-/**
- * Store user's image in rgba_fxt1 format.
- */
-GLboolean
-_mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
-{
-   const GLchan *pixels;
-   GLint srcRowStride;
-   GLubyte *dst;
-   GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
-   const GLchan *tempImage = NULL;
-
-   ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1);
-   ASSERT(dstXoffset % 8 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset     == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-   if (srcFormat != GL_RGBA ||
-       srcType != CHAN_TYPE ||
-       ctx->_ImageTransferState ||
-       srcPacking->SwapBytes) {
-      /* convert image to RGBA/GLchan */
-      tempImage = _mesa_make_temp_chan_image(ctx, dims,
-                                             baseInternalFormat,
-                                             _mesa_get_format_base_format(dstFormat),
-                                             srcWidth, srcHeight, srcDepth,
-                                             srcFormat, srcType, srcAddr,
-                                             srcPacking);
-      if (!tempImage)
-         return GL_FALSE; /* out of memory */
-      pixels = tempImage;
-      srcRowStride = 4 * srcWidth;
-      srcFormat = GL_RGBA;
-   }
-   else {
-      pixels = (const GLchan *) srcAddr;
-      srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
-                                            srcType) / sizeof(GLchan);
-   }
-
-   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-                                        dstFormat,
-                                        texWidth, (GLubyte *) dstAddr);
-
-   fxt1_encode(srcWidth, srcHeight, 4, pixels, srcRowStride,
-               dst, dstRowStride);
-
-   if (tempImage)
-      free((void*) tempImage);
-
-   return GL_TRUE;
-}
-
-
-void
-_mesa_fetch_texel_2d_f_rgba_fxt1( const struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* just sample as GLchan and convert to float here */
-   GLchan rgba[4];
-   (void) k;
-   fxt1_decode_1(texImage->Data, texImage->RowStride, i, j, rgba);
-   texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
-}
-
-
-void
-_mesa_fetch_texel_2d_f_rgb_fxt1( const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* just sample as GLchan and convert to float here */
-   GLchan rgba[4];
-   (void) k;
-   fxt1_decode_1(texImage->Data, texImage->RowStride, i, j, rgba);
-   texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = 1.0F;
-}
-
-
-
-/***************************************************************************\
- * FXT1 encoder
- *
- * The encoder was built by reversing the decoder,
- * and is vaguely based on Texus2 by 3dfx. Note that this code
- * is merely a proof of concept, since it is highly UNoptimized;
- * moreover, it is sub-optimal due to initial conditions passed
- * to Lloyd's algorithm (the interpolation modes are even worse).
-\***************************************************************************/
-
-
-#define MAX_COMP 4 /* ever needed maximum number of components in texel */
-#define MAX_VECT 4 /* ever needed maximum number of base vectors to find */
-#define N_TEXELS 32 /* number of texels in a block (always 32) */
-#define LL_N_REP 50 /* number of iterations in lloyd's vq */
-#define LL_RMS_D 10 /* fault tolerance (maximum delta) */
-#define LL_RMS_E 255 /* fault tolerance (maximum error) */
-#define ALPHA_TS 2 /* alpha threshold: (255 - ALPHA_TS) deemed opaque */
-#define ISTBLACK(v) (*((GLuint *)(v)) == 0)
-
-
-/*
- * Define a 64-bit unsigned integer type and macros
- */
-#if 1
-
-#define FX64_NATIVE 1
-
-typedef uint64_t Fx64;
-
-#define FX64_MOV32(a, b) a = b
-#define FX64_OR32(a, b)  a |= b
-#define FX64_SHL(a, c)   a <<= c
-
-#else
-
-#define FX64_NATIVE 0
-
-typedef struct {
-   GLuint lo, hi;
-} Fx64;
-
-#define FX64_MOV32(a, b) a.lo = b
-#define FX64_OR32(a, b)  a.lo |= b
-
-#define FX64_SHL(a, c)                                 \
-   do {                                                \
-       if ((c) >= 32) {                                \
-          a.hi = a.lo << ((c) - 32);                   \
-          a.lo = 0;                                    \
-       } else {                                        \
-          a.hi = (a.hi << (c)) | (a.lo >> (32 - (c))); \
-          a.lo <<= (c);                                \
-       }                                               \
-   } while (0)
-
-#endif
-
-
-#define F(i) (GLfloat)1 /* can be used to obtain an oblong metric: 0.30 / 0.59 / 0.11 */
-#define SAFECDOT 1 /* for paranoids */
-
-#define MAKEIVEC(NV, NC, IV, B, V0, V1)  \
-   do {                                  \
-      /* compute interpolation vector */ \
-      GLfloat d2 = 0.0F;                 \
-      GLfloat rd2;                       \
-                                         \
-      for (i = 0; i < NC; i++) {         \
-         IV[i] = (V1[i] - V0[i]) * F(i); \
-         d2 += IV[i] * IV[i];            \
-      }                                  \
-      rd2 = (GLfloat)NV / d2;            \
-      B = 0;                             \
-      for (i = 0; i < NC; i++) {         \
-         IV[i] *= F(i);                  \
-         B -= IV[i] * V0[i];             \
-         IV[i] *= rd2;                   \
-      }                                  \
-      B = B * rd2 + 0.5f;                \
-   } while (0)
-
-#define CALCCDOT(TEXEL, NV, NC, IV, B, V)\
-   do {                                  \
-      GLfloat dot = 0.0F;                \
-      for (i = 0; i < NC; i++) {         \
-         dot += V[i] * IV[i];            \
-      }                                  \
-      TEXEL = (GLint)(dot + B);          \
-      if (SAFECDOT) {                    \
-         if (TEXEL < 0) {                \
-            TEXEL = 0;                   \
-         } else if (TEXEL > NV) {        \
-            TEXEL = NV;                  \
-         }                               \
-      }                                  \
-   } while (0)
-
-
-static GLint
-fxt1_bestcol (GLfloat vec[][MAX_COMP], GLint nv,
-              GLubyte input[MAX_COMP], GLint nc)
-{
-   GLint i, j, best = -1;
-   GLfloat err = 1e9; /* big enough */
-
-   for (j = 0; j < nv; j++) {
-      GLfloat e = 0.0F;
-      for (i = 0; i < nc; i++) {
-         e += (vec[j][i] - input[i]) * (vec[j][i] - input[i]);
-      }
-      if (e < err) {
-         err = e;
-         best = j;
-      }
-   }
-
-   return best;
-}
-
-
-static GLint
-fxt1_worst (GLfloat vec[MAX_COMP],
-            GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
-{
-   GLint i, k, worst = -1;
-   GLfloat err = -1.0F; /* small enough */
-
-   for (k = 0; k < n; k++) {
-      GLfloat e = 0.0F;
-      for (i = 0; i < nc; i++) {
-         e += (vec[i] - input[k][i]) * (vec[i] - input[k][i]);
-      }
-      if (e > err) {
-         err = e;
-         worst = k;
-      }
-   }
-
-   return worst;
-}
-
-
-static GLint
-fxt1_variance (GLdouble variance[MAX_COMP],
-               GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
-{
-   GLint i, k, best = 0;
-   GLint sx, sx2;
-   GLdouble var, maxvar = -1; /* small enough */
-   GLdouble teenth = 1.0 / n;
-
-   for (i = 0; i < nc; i++) {
-      sx = sx2 = 0;
-      for (k = 0; k < n; k++) {
-         GLint t = input[k][i];
-         sx += t;
-         sx2 += t * t;
-      }
-      var = sx2 * teenth - sx * sx * teenth * teenth;
-      if (maxvar < var) {
-         maxvar = var;
-         best = i;
-      }
-      if (variance) {
-         variance[i] = var;
-      }
-   }
-
-   return best;
-}
-
-
-static GLint
-fxt1_choose (GLfloat vec[][MAX_COMP], GLint nv,
-             GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
-{
-#if 0
-   /* Choose colors from a grid.
-    */
-   GLint i, j;
-
-   for (j = 0; j < nv; j++) {
-      GLint m = j * (n - 1) / (nv - 1);
-      for (i = 0; i < nc; i++) {
-         vec[j][i] = input[m][i];
-      }
-   }
-#else
-   /* Our solution here is to find the darkest and brightest colors in
-    * the 8x4 tile and use those as the two representative colors.
-    * There are probably better algorithms to use (histogram-based).
-    */
-   GLint i, j, k;
-   GLint minSum = 2000; /* big enough */
-   GLint maxSum = -1; /* small enough */
-   GLint minCol = 0; /* phoudoin: silent compiler! */
-   GLint maxCol = 0; /* phoudoin: silent compiler! */
-
-   struct {
-      GLint flag;
-      GLint key;
-      GLint freq;
-      GLint idx;
-   } hist[N_TEXELS];
-   GLint lenh = 0;
-
-   memset(hist, 0, sizeof(hist));
-
-   for (k = 0; k < n; k++) {
-      GLint l;
-      GLint key = 0;
-      GLint sum = 0;
-      for (i = 0; i < nc; i++) {
-         key <<= 8;
-         key |= input[k][i];
-         sum += input[k][i];
-      }
-      for (l = 0; l < n; l++) {
-         if (!hist[l].flag) {
-            /* alloc new slot */
-            hist[l].flag = !0;
-            hist[l].key = key;
-            hist[l].freq = 1;
-            hist[l].idx = k;
-            lenh = l + 1;
-            break;
-         } else if (hist[l].key == key) {
-            hist[l].freq++;
-            break;
-         }
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minCol = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxCol = k;
-      }
-   }
-
-   if (lenh <= nv) {
-      for (j = 0; j < lenh; j++) {
-         for (i = 0; i < nc; i++) {
-            vec[j][i] = (GLfloat)input[hist[j].idx][i];
-         }
-      }
-      for (; j < nv; j++) {
-         for (i = 0; i < nc; i++) {
-            vec[j][i] = vec[0][i];
-         }
-      }
-      return 0;
-   }
-
-   for (j = 0; j < nv; j++) {
-      for (i = 0; i < nc; i++) {
-         vec[j][i] = ((nv - 1 - j) * input[minCol][i] + j * input[maxCol][i] + (nv - 1) / 2) / (GLfloat)(nv - 1);
-      }
-   }
-#endif
-
-   return !0;
-}
-
-
-static GLint
-fxt1_lloyd (GLfloat vec[][MAX_COMP], GLint nv,
-            GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
-{
-   /* Use the generalized lloyd's algorithm for VQ:
-    *     find 4 color vectors.
-    *
-    *     for each sample color
-    *         sort to nearest vector.
-    *
-    *     replace each vector with the centroid of its matching colors.
-    *
-    *     repeat until RMS doesn't improve.
-    *
-    *     if a color vector has no samples, or becomes the same as another
-    *     vector, replace it with the color which is farthest from a sample.
-    *
-    * vec[][MAX_COMP]           initial vectors and resulting colors
-    * nv                        number of resulting colors required
-    * input[N_TEXELS][MAX_COMP] input texels
-    * nc                        number of components in input / vec
-    * n                         number of input samples
-    */
-
-   GLint sum[MAX_VECT][MAX_COMP]; /* used to accumulate closest texels */
-   GLint cnt[MAX_VECT]; /* how many times a certain vector was chosen */
-   GLfloat error, lasterror = 1e9;
-
-   GLint i, j, k, rep;
-
-   /* the quantizer */
-   for (rep = 0; rep < LL_N_REP; rep++) {
-      /* reset sums & counters */
-      for (j = 0; j < nv; j++) {
-         for (i = 0; i < nc; i++) {
-            sum[j][i] = 0;
-         }
-         cnt[j] = 0;
-      }
-      error = 0;
-
-      /* scan whole block */
-      for (k = 0; k < n; k++) {
-#if 1
-         GLint best = -1;
-         GLfloat err = 1e9; /* big enough */
-         /* determine best vector */
-         for (j = 0; j < nv; j++) {
-            GLfloat e = (vec[j][0] - input[k][0]) * (vec[j][0] - input[k][0]) +
-                      (vec[j][1] - input[k][1]) * (vec[j][1] - input[k][1]) +
-                      (vec[j][2] - input[k][2]) * (vec[j][2] - input[k][2]);
-            if (nc == 4) {
-               e += (vec[j][3] - input[k][3]) * (vec[j][3] - input[k][3]);
-            }
-            if (e < err) {
-               err = e;
-               best = j;
-            }
-         }
-#else
-         GLint best = fxt1_bestcol(vec, nv, input[k], nc, &err);
-#endif
-         assert(best >= 0);
-         /* add in closest color */
-         for (i = 0; i < nc; i++) {
-            sum[best][i] += input[k][i];
-         }
-         /* mark this vector as used */
-         cnt[best]++;
-         /* accumulate error */
-         error += err;
-      }
-
-      /* check RMS */
-      if ((error < LL_RMS_E) ||
-          ((error < lasterror) && ((lasterror - error) < LL_RMS_D))) {
-         return !0; /* good match */
-      }
-      lasterror = error;
-
-      /* move each vector to the barycenter of its closest colors */
-      for (j = 0; j < nv; j++) {
-         if (cnt[j]) {
-            GLfloat div = 1.0F / cnt[j];
-            for (i = 0; i < nc; i++) {
-               vec[j][i] = div * sum[j][i];
-            }
-         } else {
-            /* this vec has no samples or is identical with a previous vec */
-            GLint worst = fxt1_worst(vec[j], input, nc, n);
-            for (i = 0; i < nc; i++) {
-               vec[j][i] = input[worst][i];
-            }
-         }
-      }
-   }
-
-   return 0; /* could not converge fast enough */
-}
-
-
-static void
-fxt1_quantize_CHROMA (GLuint *cc,
-                      GLubyte input[N_TEXELS][MAX_COMP])
-{
-   const GLint n_vect = 4; /* 4 base vectors to find */
-   const GLint n_comp = 3; /* 3 components: R, G, B */
-   GLfloat vec[MAX_VECT][MAX_COMP];
-   GLint i, j, k;
-   Fx64 hi; /* high quadword */
-   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
-
-   if (fxt1_choose(vec, n_vect, input, n_comp, N_TEXELS) != 0) {
-      fxt1_lloyd(vec, n_vect, input, n_comp, N_TEXELS);
-   }
-
-   FX64_MOV32(hi, 4); /* cc-chroma = "010" + unused bit */
-   for (j = n_vect - 1; j >= 0; j--) {
-      for (i = 0; i < n_comp; i++) {
-         /* add in colors */
-         FX64_SHL(hi, 5);
-         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
-      }
-   }
-   ((Fx64 *)cc)[1] = hi;
-
-   lohi = lolo = 0;
-   /* right microtile */
-   for (k = N_TEXELS - 1; k >= N_TEXELS/2; k--) {
-      lohi <<= 2;
-      lohi |= fxt1_bestcol(vec, n_vect, input[k], n_comp);
-   }
-   /* left microtile */
-   for (; k >= 0; k--) {
-      lolo <<= 2;
-      lolo |= fxt1_bestcol(vec, n_vect, input[k], n_comp);
-   }
-   cc[1] = lohi;
-   cc[0] = lolo;
-}
-
-
-static void
-fxt1_quantize_ALPHA0 (GLuint *cc,
-                      GLubyte input[N_TEXELS][MAX_COMP],
-                      GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
-{
-   const GLint n_vect = 3; /* 3 base vectors to find */
-   const GLint n_comp = 4; /* 4 components: R, G, B, A */
-   GLfloat vec[MAX_VECT][MAX_COMP];
-   GLint i, j, k;
-   Fx64 hi; /* high quadword */
-   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
-
-   /* the last vector indicates zero */
-   for (i = 0; i < n_comp; i++) {
-      vec[n_vect][i] = 0;
-   }
-
-   /* the first n texels in reord are guaranteed to be non-zero */
-   if (fxt1_choose(vec, n_vect, reord, n_comp, n) != 0) {
-      fxt1_lloyd(vec, n_vect, reord, n_comp, n);
-   }
-
-   FX64_MOV32(hi, 6); /* alpha = "011" + lerp = 0 */
-   for (j = n_vect - 1; j >= 0; j--) {
-      /* add in alphas */
-      FX64_SHL(hi, 5);
-      FX64_OR32(hi, (GLuint)(vec[j][ACOMP] / 8.0F));
-   }
-   for (j = n_vect - 1; j >= 0; j--) {
-      for (i = 0; i < n_comp - 1; i++) {
-         /* add in colors */
-         FX64_SHL(hi, 5);
-         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
-      }
-   }
-   ((Fx64 *)cc)[1] = hi;
-
-   lohi = lolo = 0;
-   /* right microtile */
-   for (k = N_TEXELS - 1; k >= N_TEXELS/2; k--) {
-      lohi <<= 2;
-      lohi |= fxt1_bestcol(vec, n_vect + 1, input[k], n_comp);
-   }
-   /* left microtile */
-   for (; k >= 0; k--) {
-      lolo <<= 2;
-      lolo |= fxt1_bestcol(vec, n_vect + 1, input[k], n_comp);
-   }
-   cc[1] = lohi;
-   cc[0] = lolo;
-}
-
-
-static void
-fxt1_quantize_ALPHA1 (GLuint *cc,
-                      GLubyte input[N_TEXELS][MAX_COMP])
-{
-   const GLint n_vect = 3; /* highest vector number in each microtile */
-   const GLint n_comp = 4; /* 4 components: R, G, B, A */
-   GLfloat vec[1 + 1 + 1][MAX_COMP]; /* 1.5 extrema for each sub-block */
-   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
-   GLint i, j, k;
-   Fx64 hi; /* high quadword */
-   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
-
-   GLint minSum;
-   GLint maxSum;
-   GLint minColL = 0, maxColL = 0;
-   GLint minColR = 0, maxColR = 0;
-   GLint sumL = 0, sumR = 0;
-   GLint nn_comp;
-   /* Our solution here is to find the darkest and brightest colors in
-    * the 4x4 tile and use those as the two representative colors.
-    * There are probably better algorithms to use (histogram-based).
-    */
-   nn_comp = n_comp;
-   while ((minColL == maxColL) && nn_comp) {
-       minSum = 2000; /* big enough */
-       maxSum = -1; /* small enough */
-       for (k = 0; k < N_TEXELS / 2; k++) {
-           GLint sum = 0;
-           for (i = 0; i < nn_comp; i++) {
-               sum += input[k][i];
-           }
-           if (minSum > sum) {
-               minSum = sum;
-               minColL = k;
-           }
-           if (maxSum < sum) {
-               maxSum = sum;
-               maxColL = k;
-           }
-           sumL += sum;
-       }
-       
-       nn_comp--;
-   }
-
-   nn_comp = n_comp;
-   while ((minColR == maxColR) && nn_comp) {
-       minSum = 2000; /* big enough */
-       maxSum = -1; /* small enough */
-       for (k = N_TEXELS / 2; k < N_TEXELS; k++) {
-           GLint sum = 0;
-           for (i = 0; i < nn_comp; i++) {
-               sum += input[k][i];
-           }
-           if (minSum > sum) {
-               minSum = sum;
-               minColR = k;
-           }
-           if (maxSum < sum) {
-               maxSum = sum;
-               maxColR = k;
-           }
-           sumR += sum;
-       }
-
-       nn_comp--;
-   }
-
-   /* choose the common vector (yuck!) */
-   {
-      GLint j1, j2;
-      GLint v1 = 0, v2 = 0;
-      GLfloat err = 1e9; /* big enough */
-      GLfloat tv[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
-      for (i = 0; i < n_comp; i++) {
-         tv[0][i] = input[minColL][i];
-         tv[1][i] = input[maxColL][i];
-         tv[2][i] = input[minColR][i];
-         tv[3][i] = input[maxColR][i];
-      }
-      for (j1 = 0; j1 < 2; j1++) {
-         for (j2 = 2; j2 < 4; j2++) {
-            GLfloat e = 0.0F;
-            for (i = 0; i < n_comp; i++) {
-               e += (tv[j1][i] - tv[j2][i]) * (tv[j1][i] - tv[j2][i]);
-            }
-            if (e < err) {
-               err = e;
-               v1 = j1;
-               v2 = j2;
-            }
-         }
-      }
-      for (i = 0; i < n_comp; i++) {
-         vec[0][i] = tv[1 - v1][i];
-         vec[1][i] = (tv[v1][i] * sumL + tv[v2][i] * sumR) / (sumL + sumR);
-         vec[2][i] = tv[5 - v2][i];
-      }
-   }
-
-   /* left microtile */
-   cc[0] = 0;
-   if (minColL != maxColL) {
-      /* compute interpolation vector */
-      MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
-
-      /* add in texels */
-      lolo = 0;
-      for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
-         GLint texel;
-         /* interpolate color */
-         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-         /* add in texel */
-         lolo <<= 2;
-         lolo |= texel;
-      }
-      
-      cc[0] = lolo;
-   }
-
-   /* right microtile */
-   cc[1] = 0;
-   if (minColR != maxColR) {
-      /* compute interpolation vector */
-      MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[1]);
-
-      /* add in texels */
-      lohi = 0;
-      for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
-         GLint texel;
-         /* interpolate color */
-         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-         /* add in texel */
-         lohi <<= 2;
-         lohi |= texel;
-      }
-
-      cc[1] = lohi;
-   }
-
-   FX64_MOV32(hi, 7); /* alpha = "011" + lerp = 1 */
-   for (j = n_vect - 1; j >= 0; j--) {
-      /* add in alphas */
-      FX64_SHL(hi, 5);
-      FX64_OR32(hi, (GLuint)(vec[j][ACOMP] / 8.0F));
-   }
-   for (j = n_vect - 1; j >= 0; j--) {
-      for (i = 0; i < n_comp - 1; i++) {
-         /* add in colors */
-         FX64_SHL(hi, 5);
-         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
-      }
-   }
-   ((Fx64 *)cc)[1] = hi;
-}
-
-
-static void
-fxt1_quantize_HI (GLuint *cc,
-                  GLubyte input[N_TEXELS][MAX_COMP],
-                  GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
-{
-   const GLint n_vect = 6; /* highest vector number */
-   const GLint n_comp = 3; /* 3 components: R, G, B */
-   GLfloat b = 0.0F;       /* phoudoin: silent compiler! */
-   GLfloat iv[MAX_COMP];   /* interpolation vector */
-   GLint i, k;
-   GLuint hihi; /* high quadword: hi dword */
-
-   GLint minSum = 2000; /* big enough */
-   GLint maxSum = -1; /* small enough */
-   GLint minCol = 0; /* phoudoin: silent compiler! */
-   GLint maxCol = 0; /* phoudoin: silent compiler! */
-
-   /* Our solution here is to find the darkest and brightest colors in
-    * the 8x4 tile and use those as the two representative colors.
-    * There are probably better algorithms to use (histogram-based).
-    */
-   for (k = 0; k < n; k++) {
-      GLint sum = 0;
-      for (i = 0; i < n_comp; i++) {
-         sum += reord[k][i];
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minCol = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxCol = k;
-      }
-   }
-
-   hihi = 0; /* cc-hi = "00" */
-   for (i = 0; i < n_comp; i++) {
-      /* add in colors */
-      hihi <<= 5;
-      hihi |= reord[maxCol][i] >> 3;
-   }
-   for (i = 0; i < n_comp; i++) {
-      /* add in colors */
-      hihi <<= 5;
-      hihi |= reord[minCol][i] >> 3;
-   }
-   cc[3] = hihi;
-   cc[0] = cc[1] = cc[2] = 0;
-
-   /* compute interpolation vector */
-   if (minCol != maxCol) {
-      MAKEIVEC(n_vect, n_comp, iv, b, reord[minCol], reord[maxCol]);
-   }
-
-   /* add in texels */
-   for (k = N_TEXELS - 1; k >= 0; k--) {
-      GLint t = k * 3;
-      GLuint *kk = (GLuint *)((char *)cc + t / 8);
-      GLint texel = n_vect + 1; /* transparent black */
-
-      if (!ISTBLACK(input[k])) {
-         if (minCol != maxCol) {
-            /* interpolate color */
-            CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-            /* add in texel */
-            kk[0] |= texel << (t & 7);
-         }
-      } else {
-         /* add in texel */
-         kk[0] |= texel << (t & 7);
-      }
-   }
-}
-
-
-static void
-fxt1_quantize_MIXED1 (GLuint *cc,
-                      GLubyte input[N_TEXELS][MAX_COMP])
-{
-   const GLint n_vect = 2; /* highest vector number in each microtile */
-   const GLint n_comp = 3; /* 3 components: R, G, B */
-   GLubyte vec[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
-   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
-   GLint i, j, k;
-   Fx64 hi; /* high quadword */
-   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
-
-   GLint minSum;
-   GLint maxSum;
-   GLint minColL = 0, maxColL = -1;
-   GLint minColR = 0, maxColR = -1;
-
-   /* Our solution here is to find the darkest and brightest colors in
-    * the 4x4 tile and use those as the two representative colors.
-    * There are probably better algorithms to use (histogram-based).
-    */
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (k = 0; k < N_TEXELS / 2; k++) {
-      if (!ISTBLACK(input[k])) {
-         GLint sum = 0;
-         for (i = 0; i < n_comp; i++) {
-            sum += input[k][i];
-         }
-         if (minSum > sum) {
-            minSum = sum;
-            minColL = k;
-         }
-         if (maxSum < sum) {
-            maxSum = sum;
-            maxColL = k;
-         }
-      }
-   }
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (; k < N_TEXELS; k++) {
-      if (!ISTBLACK(input[k])) {
-         GLint sum = 0;
-         for (i = 0; i < n_comp; i++) {
-            sum += input[k][i];
-         }
-         if (minSum > sum) {
-            minSum = sum;
-            minColR = k;
-         }
-         if (maxSum < sum) {
-            maxSum = sum;
-            maxColR = k;
-         }
-      }
-   }
-
-   /* left microtile */
-   if (maxColL == -1) {
-      /* all transparent black */
-      cc[0] = ~0u;
-      for (i = 0; i < n_comp; i++) {
-         vec[0][i] = 0;
-         vec[1][i] = 0;
-      }
-   } else {
-      cc[0] = 0;
-      for (i = 0; i < n_comp; i++) {
-         vec[0][i] = input[minColL][i];
-         vec[1][i] = input[maxColL][i];
-      }
-      if (minColL != maxColL) {
-         /* compute interpolation vector */
-         MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
-
-         /* add in texels */
-         lolo = 0;
-         for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
-            GLint texel = n_vect + 1; /* transparent black */
-            if (!ISTBLACK(input[k])) {
-               /* interpolate color */
-               CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-            }
-            /* add in texel */
-            lolo <<= 2;
-            lolo |= texel;
-         }
-         cc[0] = lolo;
-      }
-   }
-
-   /* right microtile */
-   if (maxColR == -1) {
-      /* all transparent black */
-      cc[1] = ~0u;
-      for (i = 0; i < n_comp; i++) {
-         vec[2][i] = 0;
-         vec[3][i] = 0;
-      }
-   } else {
-      cc[1] = 0;
-      for (i = 0; i < n_comp; i++) {
-         vec[2][i] = input[minColR][i];
-         vec[3][i] = input[maxColR][i];
-      }
-      if (minColR != maxColR) {
-         /* compute interpolation vector */
-         MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[3]);
-
-         /* add in texels */
-         lohi = 0;
-         for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
-            GLint texel = n_vect + 1; /* transparent black */
-            if (!ISTBLACK(input[k])) {
-               /* interpolate color */
-               CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-            }
-            /* add in texel */
-            lohi <<= 2;
-            lohi |= texel;
-         }
-         cc[1] = lohi;
-      }
-   }
-
-   FX64_MOV32(hi, 9 | (vec[3][GCOMP] & 4) | ((vec[1][GCOMP] >> 1) & 2)); /* chroma = "1" */
-   for (j = 2 * 2 - 1; j >= 0; j--) {
-      for (i = 0; i < n_comp; i++) {
-         /* add in colors */
-         FX64_SHL(hi, 5);
-         FX64_OR32(hi, vec[j][i] >> 3);
-      }
-   }
-   ((Fx64 *)cc)[1] = hi;
-}
-
-
-static void
-fxt1_quantize_MIXED0 (GLuint *cc,
-                      GLubyte input[N_TEXELS][MAX_COMP])
-{
-   const GLint n_vect = 3; /* highest vector number in each microtile */
-   const GLint n_comp = 3; /* 3 components: R, G, B */
-   GLubyte vec[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
-   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
-   GLint i, j, k;
-   Fx64 hi; /* high quadword */
-   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
-
-   GLint minColL = 0, maxColL = 0;
-   GLint minColR = 0, maxColR = 0;
-#if 0
-   GLint minSum;
-   GLint maxSum;
-
-   /* Our solution here is to find the darkest and brightest colors in
-    * the 4x4 tile and use those as the two representative colors.
-    * There are probably better algorithms to use (histogram-based).
-    */
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (k = 0; k < N_TEXELS / 2; k++) {
-      GLint sum = 0;
-      for (i = 0; i < n_comp; i++) {
-         sum += input[k][i];
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minColL = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxColL = k;
-      }
-   }
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (; k < N_TEXELS; k++) {
-      GLint sum = 0;
-      for (i = 0; i < n_comp; i++) {
-         sum += input[k][i];
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minColR = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxColR = k;
-      }
-   }
-#else
-   GLint minVal;
-   GLint maxVal;
-   GLint maxVarL = fxt1_variance(NULL, input, n_comp, N_TEXELS / 2);
-   GLint maxVarR = fxt1_variance(NULL, &input[N_TEXELS / 2], n_comp, N_TEXELS / 2);
-
-   /* Scan the channel with max variance for lo & hi
-    * and use those as the two representative colors.
-    */
-   minVal = 2000; /* big enough */
-   maxVal = -1; /* small enough */
-   for (k = 0; k < N_TEXELS / 2; k++) {
-      GLint t = input[k][maxVarL];
-      if (minVal > t) {
-         minVal = t;
-         minColL = k;
-      }
-      if (maxVal < t) {
-         maxVal = t;
-         maxColL = k;
-      }
-   }
-   minVal = 2000; /* big enough */
-   maxVal = -1; /* small enough */
-   for (; k < N_TEXELS; k++) {
-      GLint t = input[k][maxVarR];
-      if (minVal > t) {
-         minVal = t;
-         minColR = k;
-      }
-      if (maxVal < t) {
-         maxVal = t;
-         maxColR = k;
-      }
-   }
-#endif
-
-   /* left microtile */
-   cc[0] = 0;
-   for (i = 0; i < n_comp; i++) {
-      vec[0][i] = input[minColL][i];
-      vec[1][i] = input[maxColL][i];
-   }
-   if (minColL != maxColL) {
-      /* compute interpolation vector */
-      MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
-
-      /* add in texels */
-      lolo = 0;
-      for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
-         GLint texel;
-         /* interpolate color */
-         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-         /* add in texel */
-         lolo <<= 2;
-         lolo |= texel;
-      }
-
-      /* funky encoding for LSB of green */
-      if ((GLint)((lolo >> 1) & 1) != (((vec[1][GCOMP] ^ vec[0][GCOMP]) >> 2) & 1)) {
-         for (i = 0; i < n_comp; i++) {
-            vec[1][i] = input[minColL][i];
-            vec[0][i] = input[maxColL][i];
-         }
-         lolo = ~lolo;
-      }
-      
-      cc[0] = lolo;
-   }
-
-   /* right microtile */
-   cc[1] = 0;
-   for (i = 0; i < n_comp; i++) {
-      vec[2][i] = input[minColR][i];
-      vec[3][i] = input[maxColR][i];
-   }
-   if (minColR != maxColR) {
-      /* compute interpolation vector */
-      MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[3]);
-
-      /* add in texels */
-      lohi = 0;
-      for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
-         GLint texel;
-         /* interpolate color */
-         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
-         /* add in texel */
-         lohi <<= 2;
-         lohi |= texel;
-      }
-
-      /* funky encoding for LSB of green */
-      if ((GLint)((lohi >> 1) & 1) != (((vec[3][GCOMP] ^ vec[2][GCOMP]) >> 2) & 1)) {
-         for (i = 0; i < n_comp; i++) {
-            vec[3][i] = input[minColR][i];
-            vec[2][i] = input[maxColR][i];
-         }
-         lohi = ~lohi;
-      }
-
-      cc[1] = lohi;
-   }
-
-   FX64_MOV32(hi, 8 | (vec[3][GCOMP] & 4) | ((vec[1][GCOMP] >> 1) & 2)); /* chroma = "1" */
-   for (j = 2 * 2 - 1; j >= 0; j--) {
-      for (i = 0; i < n_comp; i++) {
-         /* add in colors */
-         FX64_SHL(hi, 5);
-         FX64_OR32(hi, vec[j][i] >> 3);
-      }
-   }
-   ((Fx64 *)cc)[1] = hi;
-}
-
-
-static void
-fxt1_quantize (GLuint *cc, const GLubyte *lines[], GLint comps)
-{
-   GLint trualpha;
-   GLubyte reord[N_TEXELS][MAX_COMP];
-
-   GLubyte input[N_TEXELS][MAX_COMP];
-   GLint i, k, l;
-
-   if (comps == 3) {
-      /* make the whole block opaque */
-      memset(input, -1, sizeof(input));
-   }
-
-   /* 8 texels each line */
-   for (l = 0; l < 4; l++) {
-      for (k = 0; k < 4; k++) {
-         for (i = 0; i < comps; i++) {
-            input[k + l * 4][i] = *lines[l]++;
-         }
-      }
-      for (; k < 8; k++) {
-         for (i = 0; i < comps; i++) {
-            input[k + l * 4 + 12][i] = *lines[l]++;
-         }
-      }
-   }
-
-   /* block layout:
-    * 00, 01, 02, 03, 08, 09, 0a, 0b
-    * 10, 11, 12, 13, 18, 19, 1a, 1b
-    * 04, 05, 06, 07, 0c, 0d, 0e, 0f
-    * 14, 15, 16, 17, 1c, 1d, 1e, 1f
-    */
-
-   /* [dBorca]
-    * stupidity flows forth from this
-    */
-   l = N_TEXELS;
-   trualpha = 0;
-   if (comps == 4) {
-      /* skip all transparent black texels */
-      l = 0;
-      for (k = 0; k < N_TEXELS; k++) {
-         /* test all components against 0 */
-         if (!ISTBLACK(input[k])) {
-            /* texel is not transparent black */
-            COPY_4UBV(reord[l], input[k]);
-            if (reord[l][ACOMP] < (255 - ALPHA_TS)) {
-               /* non-opaque texel */
-               trualpha = !0;
-            }
-            l++;
-         }
-      }
-   }
-
-#if 0
-   if (trualpha) {
-      fxt1_quantize_ALPHA0(cc, input, reord, l);
-   } else if (l == 0) {
-      cc[0] = cc[1] = cc[2] = -1;
-      cc[3] = 0;
-   } else if (l < N_TEXELS) {
-      fxt1_quantize_HI(cc, input, reord, l);
-   } else {
-      fxt1_quantize_CHROMA(cc, input);
-   }
-   (void)fxt1_quantize_ALPHA1;
-   (void)fxt1_quantize_MIXED1;
-   (void)fxt1_quantize_MIXED0;
-#else
-   if (trualpha) {
-      fxt1_quantize_ALPHA1(cc, input);
-   } else if (l == 0) {
-      cc[0] = cc[1] = cc[2] = ~0u;
-      cc[3] = 0;
-   } else if (l < N_TEXELS) {
-      fxt1_quantize_MIXED1(cc, input);
-   } else {
-      fxt1_quantize_MIXED0(cc, input);
-   }
-   (void)fxt1_quantize_ALPHA0;
-   (void)fxt1_quantize_HI;
-   (void)fxt1_quantize_CHROMA;
-#endif
-}
-
-
-static void
-fxt1_encode (GLuint width, GLuint height, GLint comps,
-             const void *source, GLint srcRowStride,
-             void *dest, GLint destRowStride)
-{
-   GLuint x, y;
-   const GLubyte *data;
-   GLuint *encoded = (GLuint *)dest;
-   void *newSource = NULL;
-
-   assert(comps == 3 || comps == 4);
-
-   /* Replicate image if width is not M8 or height is not M4 */
-   if ((width & 7) | (height & 3)) {
-      GLint newWidth = (width + 7) & ~7;
-      GLint newHeight = (height + 3) & ~3;
-      newSource = malloc(comps * newWidth * newHeight * sizeof(GLchan));
-      if (!newSource) {
-         GET_CURRENT_CONTEXT(ctx);
-         _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
-         goto cleanUp;
-      }
-      _mesa_upscale_teximage2d(width, height, newWidth, newHeight,
-                               comps, (const GLchan *) source,
-                               srcRowStride, (GLchan *) newSource);
-      source = newSource;
-      width = newWidth;
-      height = newHeight;
-      srcRowStride = comps * newWidth;
-   }
-
-   /* convert from 16/32-bit channels to GLubyte if needed */
-   if (CHAN_TYPE != GL_UNSIGNED_BYTE) {
-      const GLuint n = width * height * comps;
-      const GLchan *src = (const GLchan *) source;
-      GLubyte *dest = (GLubyte *) malloc(n * sizeof(GLubyte));
-      GLuint i;
-      if (!dest) {
-         GET_CURRENT_CONTEXT(ctx);
-         _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
-         goto cleanUp;
-      }
-      for (i = 0; i < n; i++) {
-         dest[i] = CHAN_TO_UBYTE(src[i]);
-      }
-      if (newSource != NULL) {
-         free(newSource);
-      }
-      newSource = dest;  /* we'll free this buffer before returning */
-      source = dest;  /* the new, GLubyte incoming image */
-   }
-
-   data = (const GLubyte *) source;
-   destRowStride = (destRowStride - width * 2) / 4;
-   for (y = 0; y < height; y += 4) {
-      GLuint offs = 0 + (y + 0) * srcRowStride;
-      for (x = 0; x < width; x += 8) {
-         const GLubyte *lines[4];
-         lines[0] = &data[offs];
-         lines[1] = lines[0] + srcRowStride;
-         lines[2] = lines[1] + srcRowStride;
-         lines[3] = lines[2] + srcRowStride;
-         offs += 8 * comps;
-         fxt1_quantize(encoded, lines, comps);
-         /* 128 bits per 8x4 block */
-         encoded += 4;
-      }
-      encoded += destRowStride;
-   }
-
- cleanUp:
-   if (newSource != NULL) {
-      free(newSource);
-   }
-}
-
-
-/***************************************************************************\
- * FXT1 decoder
- *
- * The decoder is based on GL_3DFX_texture_compression_FXT1
- * specification and serves as a concept for the encoder.
-\***************************************************************************/
-
-
-/* lookup table for scaling 5 bit colors up to 8 bits */
-static const GLubyte _rgb_scale_5[] = {
-   0,   8,   16,  25,  33,  41,  49,  58,
-   66,  74,  82,  90,  99,  107, 115, 123,
-   132, 140, 148, 156, 165, 173, 181, 189,
-   197, 206, 214, 222, 230, 239, 247, 255
-};
-
-/* lookup table for scaling 6 bit colors up to 8 bits */
-static const GLubyte _rgb_scale_6[] = {
-   0,   4,   8,   12,  16,  20,  24,  28,
-   32,  36,  40,  45,  49,  53,  57,  61,
-   65,  69,  73,  77,  81,  85,  89,  93,
-   97,  101, 105, 109, 113, 117, 121, 125,
-   130, 134, 138, 142, 146, 150, 154, 158,
-   162, 166, 170, 174, 178, 182, 186, 190,
-   194, 198, 202, 206, 210, 215, 219, 223,
-   227, 231, 235, 239, 243, 247, 251, 255
-};
-
-
-#define CC_SEL(cc, which) (((GLuint *)(cc))[(which) / 32] >> ((which) & 31))
-#define UP5(c) _rgb_scale_5[(c) & 31]
-#define UP6(c, b) _rgb_scale_6[(((c) & 31) << 1) | ((b) & 1)]
-#define LERP(n, t, c0, c1) (((n) - (t)) * (c0) + (t) * (c1) + (n) / 2) / (n)
-
-
-static void
-fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba)
-{
-   const GLuint *cc;
-
-   t *= 3;
-   cc = (const GLuint *)(code + t / 8);
-   t = (cc[0] >> (t & 7)) & 7;
-
-   if (t == 7) {
-      rgba[RCOMP] = rgba[GCOMP] = rgba[BCOMP] = rgba[ACOMP] = 0;
-   } else {
-      GLubyte r, g, b;
-      cc = (const GLuint *)(code + 12);
-      if (t == 0) {
-         b = UP5(CC_SEL(cc, 0));
-         g = UP5(CC_SEL(cc, 5));
-         r = UP5(CC_SEL(cc, 10));
-      } else if (t == 6) {
-         b = UP5(CC_SEL(cc, 15));
-         g = UP5(CC_SEL(cc, 20));
-         r = UP5(CC_SEL(cc, 25));
-      } else {
-         b = LERP(6, t, UP5(CC_SEL(cc, 0)), UP5(CC_SEL(cc, 15)));
-         g = LERP(6, t, UP5(CC_SEL(cc, 5)), UP5(CC_SEL(cc, 20)));
-         r = LERP(6, t, UP5(CC_SEL(cc, 10)), UP5(CC_SEL(cc, 25)));
-      }
-      rgba[RCOMP] = UBYTE_TO_CHAN(r);
-      rgba[GCOMP] = UBYTE_TO_CHAN(g);
-      rgba[BCOMP] = UBYTE_TO_CHAN(b);
-      rgba[ACOMP] = CHAN_MAX;
-   }
-}
-
-
-static void
-fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba)
-{
-   const GLuint *cc;
-   GLuint kk;
-
-   cc = (const GLuint *)code;
-   if (t & 16) {
-      cc++;
-      t &= 15;
-   }
-   t = (cc[0] >> (t * 2)) & 3;
-
-   t *= 15;
-   cc = (const GLuint *)(code + 8 + t / 8);
-   kk = cc[0] >> (t & 7);
-   rgba[BCOMP] = UBYTE_TO_CHAN( UP5(kk) );
-   rgba[GCOMP] = UBYTE_TO_CHAN( UP5(kk >> 5) );
-   rgba[RCOMP] = UBYTE_TO_CHAN( UP5(kk >> 10) );
-   rgba[ACOMP] = CHAN_MAX;
-}
-
-
-static void
-fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
-{
-   const GLuint *cc;
-   GLuint col[2][3];
-   GLint glsb, selb;
-
-   cc = (const GLuint *)code;
-   if (t & 16) {
-      t &= 15;
-      t = (cc[1] >> (t * 2)) & 3;
-      /* col 2 */
-      col[0][BCOMP] = (*(const GLuint *)(code + 11)) >> 6;
-      col[0][GCOMP] = CC_SEL(cc, 99);
-      col[0][RCOMP] = CC_SEL(cc, 104);
-      /* col 3 */
-      col[1][BCOMP] = CC_SEL(cc, 109);
-      col[1][GCOMP] = CC_SEL(cc, 114);
-      col[1][RCOMP] = CC_SEL(cc, 119);
-      glsb = CC_SEL(cc, 126);
-      selb = CC_SEL(cc, 33);
-   } else {
-      t = (cc[0] >> (t * 2)) & 3;
-      /* col 0 */
-      col[0][BCOMP] = CC_SEL(cc, 64);
-      col[0][GCOMP] = CC_SEL(cc, 69);
-      col[0][RCOMP] = CC_SEL(cc, 74);
-      /* col 1 */
-      col[1][BCOMP] = CC_SEL(cc, 79);
-      col[1][GCOMP] = CC_SEL(cc, 84);
-      col[1][RCOMP] = CC_SEL(cc, 89);
-      glsb = CC_SEL(cc, 125);
-      selb = CC_SEL(cc, 1);
-   }
-
-   if (CC_SEL(cc, 124) & 1) {
-      /* alpha[0] == 1 */
-
-      if (t == 3) {
-         /* zero */
-         rgba[RCOMP] = rgba[BCOMP] = rgba[GCOMP] = rgba[ACOMP] = 0;
-      } else {
-         GLubyte r, g, b;
-         if (t == 0) {
-            b = UP5(col[0][BCOMP]);
-            g = UP5(col[0][GCOMP]);
-            r = UP5(col[0][RCOMP]);
-         } else if (t == 2) {
-            b = UP5(col[1][BCOMP]);
-            g = UP6(col[1][GCOMP], glsb);
-            r = UP5(col[1][RCOMP]);
-         } else {
-            b = (UP5(col[0][BCOMP]) + UP5(col[1][BCOMP])) / 2;
-            g = (UP5(col[0][GCOMP]) + UP6(col[1][GCOMP], glsb)) / 2;
-            r = (UP5(col[0][RCOMP]) + UP5(col[1][RCOMP])) / 2;
-         }
-         rgba[RCOMP] = UBYTE_TO_CHAN(r);
-         rgba[GCOMP] = UBYTE_TO_CHAN(g);
-         rgba[BCOMP] = UBYTE_TO_CHAN(b);
-         rgba[ACOMP] = CHAN_MAX;
-      }
-   } else {
-      /* alpha[0] == 0 */
-      GLubyte r, g, b;
-      if (t == 0) {
-         b = UP5(col[0][BCOMP]);
-         g = UP6(col[0][GCOMP], glsb ^ selb);
-         r = UP5(col[0][RCOMP]);
-      } else if (t == 3) {
-         b = UP5(col[1][BCOMP]);
-         g = UP6(col[1][GCOMP], glsb);
-         r = UP5(col[1][RCOMP]);
-      } else {
-         b = LERP(3, t, UP5(col[0][BCOMP]), UP5(col[1][BCOMP]));
-         g = LERP(3, t, UP6(col[0][GCOMP], glsb ^ selb),
-                        UP6(col[1][GCOMP], glsb));
-         r = LERP(3, t, UP5(col[0][RCOMP]), UP5(col[1][RCOMP]));
-      }
-      rgba[RCOMP] = UBYTE_TO_CHAN(r);
-      rgba[GCOMP] = UBYTE_TO_CHAN(g);
-      rgba[BCOMP] = UBYTE_TO_CHAN(b);
-      rgba[ACOMP] = CHAN_MAX;
-   }
-}
-
-
-static void
-fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba)
-{
-   const GLuint *cc;
-   GLubyte r, g, b, a;
-
-   cc = (const GLuint *)code;
-   if (CC_SEL(cc, 124) & 1) {
-      /* lerp == 1 */
-      GLuint col0[4];
-
-      if (t & 16) {
-         t &= 15;
-         t = (cc[1] >> (t * 2)) & 3;
-         /* col 2 */
-         col0[BCOMP] = (*(const GLuint *)(code + 11)) >> 6;
-         col0[GCOMP] = CC_SEL(cc, 99);
-         col0[RCOMP] = CC_SEL(cc, 104);
-         col0[ACOMP] = CC_SEL(cc, 119);
-      } else {
-         t = (cc[0] >> (t * 2)) & 3;
-         /* col 0 */
-         col0[BCOMP] = CC_SEL(cc, 64);
-         col0[GCOMP] = CC_SEL(cc, 69);
-         col0[RCOMP] = CC_SEL(cc, 74);
-         col0[ACOMP] = CC_SEL(cc, 109);
-      }
-
-      if (t == 0) {
-         b = UP5(col0[BCOMP]);
-         g = UP5(col0[GCOMP]);
-         r = UP5(col0[RCOMP]);
-         a = UP5(col0[ACOMP]);
-      } else if (t == 3) {
-         b = UP5(CC_SEL(cc, 79));
-         g = UP5(CC_SEL(cc, 84));
-         r = UP5(CC_SEL(cc, 89));
-         a = UP5(CC_SEL(cc, 114));
-      } else {
-         b = LERP(3, t, UP5(col0[BCOMP]), UP5(CC_SEL(cc, 79)));
-         g = LERP(3, t, UP5(col0[GCOMP]), UP5(CC_SEL(cc, 84)));
-         r = LERP(3, t, UP5(col0[RCOMP]), UP5(CC_SEL(cc, 89)));
-         a = LERP(3, t, UP5(col0[ACOMP]), UP5(CC_SEL(cc, 114)));
-      }
-   } else {
-      /* lerp == 0 */
-
-      if (t & 16) {
-         cc++;
-         t &= 15;
-      }
-      t = (cc[0] >> (t * 2)) & 3;
-
-      if (t == 3) {
-         /* zero */
-         r = g = b = a = 0;
-      } else {
-         GLuint kk;
-         cc = (const GLuint *)code;
-         a = UP5(cc[3] >> (t * 5 + 13));
-         t *= 15;
-         cc = (const GLuint *)(code + 8 + t / 8);
-         kk = cc[0] >> (t & 7);
-         b = UP5(kk);
-         g = UP5(kk >> 5);
-         r = UP5(kk >> 10);
-      }
-   }
-   rgba[RCOMP] = UBYTE_TO_CHAN(r);
-   rgba[GCOMP] = UBYTE_TO_CHAN(g);
-   rgba[BCOMP] = UBYTE_TO_CHAN(b);
-   rgba[ACOMP] = UBYTE_TO_CHAN(a);
-}
-
-
-void
-fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
-               GLint i, GLint j, GLchan *rgba)
-{
-   static void (*decode_1[]) (const GLubyte *, GLint, GLchan *) = {
-      fxt1_decode_1HI,     /* cc-high   = "00?" */
-      fxt1_decode_1HI,     /* cc-high   = "00?" */
-      fxt1_decode_1CHROMA, /* cc-chroma = "010" */
-      fxt1_decode_1ALPHA,  /* alpha     = "011" */
-      fxt1_decode_1MIXED,  /* mixed     = "1??" */
-      fxt1_decode_1MIXED,  /* mixed     = "1??" */
-      fxt1_decode_1MIXED,  /* mixed     = "1??" */
-      fxt1_decode_1MIXED   /* mixed     = "1??" */
-   };
-
-   const GLubyte *code = (const GLubyte *)texture +
-                         ((j / 4) * (stride / 8) + (i / 8)) * 16;
-   GLint mode = CC_SEL(code, 125);
-   GLint t = i & 7;
-
-   if (t & 4) {
-      t += 12;
-   }
-   t += (j & 3) * 4;
-
-   decode_1[mode](code, t, rgba);
-}
-
-
-#endif /* FEATURE_texture_fxt1 */
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texcompress_fxt1.c
+ * GL_3DFX_texture_compression_FXT1 support.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "colormac.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mipmap.h"
+#include "texcompress.h"
+#include "texcompress_fxt1.h"
+#include "texstore.h"
+#include "swrast/s_context.h"
+
+
+#if FEATURE_texture_fxt1
+
+
+static void
+fxt1_encode (GLuint width, GLuint height, GLint comps,
+             const void *source, GLint srcRowStride,
+             void *dest, GLint destRowStride);
+
+void
+fxt1_decode_1 (const void *texture, GLint stride,
+               GLint i, GLint j, GLchan *rgba);
+
+
+/**
+ * Store user's image in rgb_fxt1 format.
+ */
+GLboolean
+_mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
+{
+   const GLchan *pixels;
+   GLint srcRowStride;
+   GLubyte *dst;
+   const GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
+   const GLchan *tempImage = NULL;
+
+   ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1);
+   ASSERT(dstXoffset % 8 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset     == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+   if (srcFormat != GL_RGB ||
+       srcType != CHAN_TYPE ||
+       ctx->_ImageTransferState ||
+       srcPacking->SwapBytes) {
+      /* convert image to RGB/GLchan */
+      tempImage = _mesa_make_temp_chan_image(ctx, dims,
+                                             baseInternalFormat,
+                                             _mesa_get_format_base_format(dstFormat),
+                                             srcWidth, srcHeight, srcDepth,
+                                             srcFormat, srcType, srcAddr,
+                                             srcPacking);
+      if (!tempImage)
+         return GL_FALSE; /* out of memory */
+      pixels = tempImage;
+      srcRowStride = 3 * srcWidth;
+      srcFormat = GL_RGB;
+   }
+   else {
+      pixels = (const GLchan *) srcAddr;
+      srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
+                                            srcType) / sizeof(GLchan);
+   }
+
+   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+                                        dstFormat,
+                                        texWidth, (GLubyte *) dstAddr);
+
+   fxt1_encode(srcWidth, srcHeight, 3, pixels, srcRowStride,
+               dst, dstRowStride);
+
+   if (tempImage)
+      free((void*) tempImage);
+
+   return GL_TRUE;
+}
+
+
+/**
+ * Store user's image in rgba_fxt1 format.
+ */
+GLboolean
+_mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
+{
+   const GLchan *pixels;
+   GLint srcRowStride;
+   GLubyte *dst;
+   GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
+   const GLchan *tempImage = NULL;
+
+   ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1);
+   ASSERT(dstXoffset % 8 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset     == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+   if (srcFormat != GL_RGBA ||
+       srcType != CHAN_TYPE ||
+       ctx->_ImageTransferState ||
+       srcPacking->SwapBytes) {
+      /* convert image to RGBA/GLchan */
+      tempImage = _mesa_make_temp_chan_image(ctx, dims,
+                                             baseInternalFormat,
+                                             _mesa_get_format_base_format(dstFormat),
+                                             srcWidth, srcHeight, srcDepth,
+                                             srcFormat, srcType, srcAddr,
+                                             srcPacking);
+      if (!tempImage)
+         return GL_FALSE; /* out of memory */
+      pixels = tempImage;
+      srcRowStride = 4 * srcWidth;
+      srcFormat = GL_RGBA;
+   }
+   else {
+      pixels = (const GLchan *) srcAddr;
+      srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
+                                            srcType) / sizeof(GLchan);
+   }
+
+   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+                                        dstFormat,
+                                        texWidth, (GLubyte *) dstAddr);
+
+   fxt1_encode(srcWidth, srcHeight, 4, pixels, srcRowStride,
+               dst, dstRowStride);
+
+   if (tempImage)
+      free((void*) tempImage);
+
+   return GL_TRUE;
+}
+
+
+void
+_mesa_fetch_texel_2d_f_rgba_fxt1( const struct swrast_texture_image *texImage,
+                                  GLint i, GLint j, GLint k, GLfloat *texel )
+{
+   /* just sample as GLchan and convert to float here */
+   GLchan rgba[4];
+   (void) k;
+   fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba);
+   texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
+   texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
+   texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
+   texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+}
+
+
+void
+_mesa_fetch_texel_2d_f_rgb_fxt1( const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel )
+{
+   /* just sample as GLchan and convert to float here */
+   GLchan rgba[4];
+   (void) k;
+   fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba);
+   texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
+   texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
+   texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
+   texel[ACOMP] = 1.0F;
+}
+
+
+
+/***************************************************************************\
+ * FXT1 encoder
+ *
+ * The encoder was built by reversing the decoder,
+ * and is vaguely based on Texus2 by 3dfx. Note that this code
+ * is merely a proof of concept, since it is highly UNoptimized;
+ * moreover, it is sub-optimal due to initial conditions passed
+ * to Lloyd's algorithm (the interpolation modes are even worse).
+\***************************************************************************/
+
+
+#define MAX_COMP 4 /* ever needed maximum number of components in texel */
+#define MAX_VECT 4 /* ever needed maximum number of base vectors to find */
+#define N_TEXELS 32 /* number of texels in a block (always 32) */
+#define LL_N_REP 50 /* number of iterations in lloyd's vq */
+#define LL_RMS_D 10 /* fault tolerance (maximum delta) */
+#define LL_RMS_E 255 /* fault tolerance (maximum error) */
+#define ALPHA_TS 2 /* alpha threshold: (255 - ALPHA_TS) deemed opaque */
+#define ISTBLACK(v) (*((GLuint *)(v)) == 0)
+
+
+/*
+ * Define a 64-bit unsigned integer type and macros
+ */
+#if 1
+
+#define FX64_NATIVE 1
+
+typedef uint64_t Fx64;
+
+#define FX64_MOV32(a, b) a = b
+#define FX64_OR32(a, b)  a |= b
+#define FX64_SHL(a, c)   a <<= c
+
+#else
+
+#define FX64_NATIVE 0
+
+typedef struct {
+   GLuint lo, hi;
+} Fx64;
+
+#define FX64_MOV32(a, b) a.lo = b
+#define FX64_OR32(a, b)  a.lo |= b
+
+#define FX64_SHL(a, c)                                 \
+   do {                                                \
+       if ((c) >= 32) {                                \
+          a.hi = a.lo << ((c) - 32);                   \
+          a.lo = 0;                                    \
+       } else {                                        \
+          a.hi = (a.hi << (c)) | (a.lo >> (32 - (c))); \
+          a.lo <<= (c);                                \
+       }                                               \
+   } while (0)
+
+#endif
+
+
+#define F(i) (GLfloat)1 /* can be used to obtain an oblong metric: 0.30 / 0.59 / 0.11 */
+#define SAFECDOT 1 /* for paranoids */
+
+#define MAKEIVEC(NV, NC, IV, B, V0, V1)  \
+   do {                                  \
+      /* compute interpolation vector */ \
+      GLfloat d2 = 0.0F;                 \
+      GLfloat rd2;                       \
+                                         \
+      for (i = 0; i < NC; i++) {         \
+         IV[i] = (V1[i] - V0[i]) * F(i); \
+         d2 += IV[i] * IV[i];            \
+      }                                  \
+      rd2 = (GLfloat)NV / d2;            \
+      B = 0;                             \
+      for (i = 0; i < NC; i++) {         \
+         IV[i] *= F(i);                  \
+         B -= IV[i] * V0[i];             \
+         IV[i] *= rd2;                   \
+      }                                  \
+      B = B * rd2 + 0.5f;                \
+   } while (0)
+
+#define CALCCDOT(TEXEL, NV, NC, IV, B, V)\
+   do {                                  \
+      GLfloat dot = 0.0F;                \
+      for (i = 0; i < NC; i++) {         \
+         dot += V[i] * IV[i];            \
+      }                                  \
+      TEXEL = (GLint)(dot + B);          \
+      if (SAFECDOT) {                    \
+         if (TEXEL < 0) {                \
+            TEXEL = 0;                   \
+         } else if (TEXEL > NV) {        \
+            TEXEL = NV;                  \
+         }                               \
+      }                                  \
+   } while (0)
+
+
+static GLint
+fxt1_bestcol (GLfloat vec[][MAX_COMP], GLint nv,
+              GLubyte input[MAX_COMP], GLint nc)
+{
+   GLint i, j, best = -1;
+   GLfloat err = 1e9; /* big enough */
+
+   for (j = 0; j < nv; j++) {
+      GLfloat e = 0.0F;
+      for (i = 0; i < nc; i++) {
+         e += (vec[j][i] - input[i]) * (vec[j][i] - input[i]);
+      }
+      if (e < err) {
+         err = e;
+         best = j;
+      }
+   }
+
+   return best;
+}
+
+
+static GLint
+fxt1_worst (GLfloat vec[MAX_COMP],
+            GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
+{
+   GLint i, k, worst = -1;
+   GLfloat err = -1.0F; /* small enough */
+
+   for (k = 0; k < n; k++) {
+      GLfloat e = 0.0F;
+      for (i = 0; i < nc; i++) {
+         e += (vec[i] - input[k][i]) * (vec[i] - input[k][i]);
+      }
+      if (e > err) {
+         err = e;
+         worst = k;
+      }
+   }
+
+   return worst;
+}
+
+
+static GLint
+fxt1_variance (GLdouble variance[MAX_COMP],
+               GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
+{
+   GLint i, k, best = 0;
+   GLint sx, sx2;
+   GLdouble var, maxvar = -1; /* small enough */
+   GLdouble teenth = 1.0 / n;
+
+   for (i = 0; i < nc; i++) {
+      sx = sx2 = 0;
+      for (k = 0; k < n; k++) {
+         GLint t = input[k][i];
+         sx += t;
+         sx2 += t * t;
+      }
+      var = sx2 * teenth - sx * sx * teenth * teenth;
+      if (maxvar < var) {
+         maxvar = var;
+         best = i;
+      }
+      if (variance) {
+         variance[i] = var;
+      }
+   }
+
+   return best;
+}
+
+
+static GLint
+fxt1_choose (GLfloat vec[][MAX_COMP], GLint nv,
+             GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
+{
+#if 0
+   /* Choose colors from a grid.
+    */
+   GLint i, j;
+
+   for (j = 0; j < nv; j++) {
+      GLint m = j * (n - 1) / (nv - 1);
+      for (i = 0; i < nc; i++) {
+         vec[j][i] = input[m][i];
+      }
+   }
+#else
+   /* Our solution here is to find the darkest and brightest colors in
+    * the 8x4 tile and use those as the two representative colors.
+    * There are probably better algorithms to use (histogram-based).
+    */
+   GLint i, j, k;
+   GLint minSum = 2000; /* big enough */
+   GLint maxSum = -1; /* small enough */
+   GLint minCol = 0; /* phoudoin: silent compiler! */
+   GLint maxCol = 0; /* phoudoin: silent compiler! */
+
+   struct {
+      GLint flag;
+      GLint key;
+      GLint freq;
+      GLint idx;
+   } hist[N_TEXELS];
+   GLint lenh = 0;
+
+   memset(hist, 0, sizeof(hist));
+
+   for (k = 0; k < n; k++) {
+      GLint l;
+      GLint key = 0;
+      GLint sum = 0;
+      for (i = 0; i < nc; i++) {
+         key <<= 8;
+         key |= input[k][i];
+         sum += input[k][i];
+      }
+      for (l = 0; l < n; l++) {
+         if (!hist[l].flag) {
+            /* alloc new slot */
+            hist[l].flag = !0;
+            hist[l].key = key;
+            hist[l].freq = 1;
+            hist[l].idx = k;
+            lenh = l + 1;
+            break;
+         } else if (hist[l].key == key) {
+            hist[l].freq++;
+            break;
+         }
+      }
+      if (minSum > sum) {
+         minSum = sum;
+         minCol = k;
+      }
+      if (maxSum < sum) {
+         maxSum = sum;
+         maxCol = k;
+      }
+   }
+
+   if (lenh <= nv) {
+      for (j = 0; j < lenh; j++) {
+         for (i = 0; i < nc; i++) {
+            vec[j][i] = (GLfloat)input[hist[j].idx][i];
+         }
+      }
+      for (; j < nv; j++) {
+         for (i = 0; i < nc; i++) {
+            vec[j][i] = vec[0][i];
+         }
+      }
+      return 0;
+   }
+
+   for (j = 0; j < nv; j++) {
+      for (i = 0; i < nc; i++) {
+         vec[j][i] = ((nv - 1 - j) * input[minCol][i] + j * input[maxCol][i] + (nv - 1) / 2) / (GLfloat)(nv - 1);
+      }
+   }
+#endif
+
+   return !0;
+}
+
+
+static GLint
+fxt1_lloyd (GLfloat vec[][MAX_COMP], GLint nv,
+            GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
+{
+   /* Use the generalized lloyd's algorithm for VQ:
+    *     find 4 color vectors.
+    *
+    *     for each sample color
+    *         sort to nearest vector.
+    *
+    *     replace each vector with the centroid of its matching colors.
+    *
+    *     repeat until RMS doesn't improve.
+    *
+    *     if a color vector has no samples, or becomes the same as another
+    *     vector, replace it with the color which is farthest from a sample.
+    *
+    * vec[][MAX_COMP]           initial vectors and resulting colors
+    * nv                        number of resulting colors required
+    * input[N_TEXELS][MAX_COMP] input texels
+    * nc                        number of components in input / vec
+    * n                         number of input samples
+    */
+
+   GLint sum[MAX_VECT][MAX_COMP]; /* used to accumulate closest texels */
+   GLint cnt[MAX_VECT]; /* how many times a certain vector was chosen */
+   GLfloat error, lasterror = 1e9;
+
+   GLint i, j, k, rep;
+
+   /* the quantizer */
+   for (rep = 0; rep < LL_N_REP; rep++) {
+      /* reset sums & counters */
+      for (j = 0; j < nv; j++) {
+         for (i = 0; i < nc; i++) {
+            sum[j][i] = 0;
+         }
+         cnt[j] = 0;
+      }
+      error = 0;
+
+      /* scan whole block */
+      for (k = 0; k < n; k++) {
+#if 1
+         GLint best = -1;
+         GLfloat err = 1e9; /* big enough */
+         /* determine best vector */
+         for (j = 0; j < nv; j++) {
+            GLfloat e = (vec[j][0] - input[k][0]) * (vec[j][0] - input[k][0]) +
+                      (vec[j][1] - input[k][1]) * (vec[j][1] - input[k][1]) +
+                      (vec[j][2] - input[k][2]) * (vec[j][2] - input[k][2]);
+            if (nc == 4) {
+               e += (vec[j][3] - input[k][3]) * (vec[j][3] - input[k][3]);
+            }
+            if (e < err) {
+               err = e;
+               best = j;
+            }
+         }
+#else
+         GLint best = fxt1_bestcol(vec, nv, input[k], nc, &err);
+#endif
+         assert(best >= 0);
+         /* add in closest color */
+         for (i = 0; i < nc; i++) {
+            sum[best][i] += input[k][i];
+         }
+         /* mark this vector as used */
+         cnt[best]++;
+         /* accumulate error */
+         error += err;
+      }
+
+      /* check RMS */
+      if ((error < LL_RMS_E) ||
+          ((error < lasterror) && ((lasterror - error) < LL_RMS_D))) {
+         return !0; /* good match */
+      }
+      lasterror = error;
+
+      /* move each vector to the barycenter of its closest colors */
+      for (j = 0; j < nv; j++) {
+         if (cnt[j]) {
+            GLfloat div = 1.0F / cnt[j];
+            for (i = 0; i < nc; i++) {
+               vec[j][i] = div * sum[j][i];
+            }
+         } else {
+            /* this vec has no samples or is identical with a previous vec */
+            GLint worst = fxt1_worst(vec[j], input, nc, n);
+            for (i = 0; i < nc; i++) {
+               vec[j][i] = input[worst][i];
+            }
+         }
+      }
+   }
+
+   return 0; /* could not converge fast enough */
+}
+
+
+static void
+fxt1_quantize_CHROMA (GLuint *cc,
+                      GLubyte input[N_TEXELS][MAX_COMP])
+{
+   const GLint n_vect = 4; /* 4 base vectors to find */
+   const GLint n_comp = 3; /* 3 components: R, G, B */
+   GLfloat vec[MAX_VECT][MAX_COMP];
+   GLint i, j, k;
+   Fx64 hi; /* high quadword */
+   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
+
+   if (fxt1_choose(vec, n_vect, input, n_comp, N_TEXELS) != 0) {
+      fxt1_lloyd(vec, n_vect, input, n_comp, N_TEXELS);
+   }
+
+   FX64_MOV32(hi, 4); /* cc-chroma = "010" + unused bit */
+   for (j = n_vect - 1; j >= 0; j--) {
+      for (i = 0; i < n_comp; i++) {
+         /* add in colors */
+         FX64_SHL(hi, 5);
+         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
+      }
+   }
+   ((Fx64 *)cc)[1] = hi;
+
+   lohi = lolo = 0;
+   /* right microtile */
+   for (k = N_TEXELS - 1; k >= N_TEXELS/2; k--) {
+      lohi <<= 2;
+      lohi |= fxt1_bestcol(vec, n_vect, input[k], n_comp);
+   }
+   /* left microtile */
+   for (; k >= 0; k--) {
+      lolo <<= 2;
+      lolo |= fxt1_bestcol(vec, n_vect, input[k], n_comp);
+   }
+   cc[1] = lohi;
+   cc[0] = lolo;
+}
+
+
+static void
+fxt1_quantize_ALPHA0 (GLuint *cc,
+                      GLubyte input[N_TEXELS][MAX_COMP],
+                      GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
+{
+   const GLint n_vect = 3; /* 3 base vectors to find */
+   const GLint n_comp = 4; /* 4 components: R, G, B, A */
+   GLfloat vec[MAX_VECT][MAX_COMP];
+   GLint i, j, k;
+   Fx64 hi; /* high quadword */
+   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
+
+   /* the last vector indicates zero */
+   for (i = 0; i < n_comp; i++) {
+      vec[n_vect][i] = 0;
+   }
+
+   /* the first n texels in reord are guaranteed to be non-zero */
+   if (fxt1_choose(vec, n_vect, reord, n_comp, n) != 0) {
+      fxt1_lloyd(vec, n_vect, reord, n_comp, n);
+   }
+
+   FX64_MOV32(hi, 6); /* alpha = "011" + lerp = 0 */
+   for (j = n_vect - 1; j >= 0; j--) {
+      /* add in alphas */
+      FX64_SHL(hi, 5);
+      FX64_OR32(hi, (GLuint)(vec[j][ACOMP] / 8.0F));
+   }
+   for (j = n_vect - 1; j >= 0; j--) {
+      for (i = 0; i < n_comp - 1; i++) {
+         /* add in colors */
+         FX64_SHL(hi, 5);
+         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
+      }
+   }
+   ((Fx64 *)cc)[1] = hi;
+
+   lohi = lolo = 0;
+   /* right microtile */
+   for (k = N_TEXELS - 1; k >= N_TEXELS/2; k--) {
+      lohi <<= 2;
+      lohi |= fxt1_bestcol(vec, n_vect + 1, input[k], n_comp);
+   }
+   /* left microtile */
+   for (; k >= 0; k--) {
+      lolo <<= 2;
+      lolo |= fxt1_bestcol(vec, n_vect + 1, input[k], n_comp);
+   }
+   cc[1] = lohi;
+   cc[0] = lolo;
+}
+
+
+static void
+fxt1_quantize_ALPHA1 (GLuint *cc,
+                      GLubyte input[N_TEXELS][MAX_COMP])
+{
+   const GLint n_vect = 3; /* highest vector number in each microtile */
+   const GLint n_comp = 4; /* 4 components: R, G, B, A */
+   GLfloat vec[1 + 1 + 1][MAX_COMP]; /* 1.5 extrema for each sub-block */
+   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
+   GLint i, j, k;
+   Fx64 hi; /* high quadword */
+   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
+
+   GLint minSum;
+   GLint maxSum;
+   GLint minColL = 0, maxColL = 0;
+   GLint minColR = 0, maxColR = 0;
+   GLint sumL = 0, sumR = 0;
+   GLint nn_comp;
+   /* Our solution here is to find the darkest and brightest colors in
+    * the 4x4 tile and use those as the two representative colors.
+    * There are probably better algorithms to use (histogram-based).
+    */
+   nn_comp = n_comp;
+   while ((minColL == maxColL) && nn_comp) {
+       minSum = 2000; /* big enough */
+       maxSum = -1; /* small enough */
+       for (k = 0; k < N_TEXELS / 2; k++) {
+           GLint sum = 0;
+           for (i = 0; i < nn_comp; i++) {
+               sum += input[k][i];
+           }
+           if (minSum > sum) {
+               minSum = sum;
+               minColL = k;
+           }
+           if (maxSum < sum) {
+               maxSum = sum;
+               maxColL = k;
+           }
+           sumL += sum;
+       }
+       
+       nn_comp--;
+   }
+
+   nn_comp = n_comp;
+   while ((minColR == maxColR) && nn_comp) {
+       minSum = 2000; /* big enough */
+       maxSum = -1; /* small enough */
+       for (k = N_TEXELS / 2; k < N_TEXELS; k++) {
+           GLint sum = 0;
+           for (i = 0; i < nn_comp; i++) {
+               sum += input[k][i];
+           }
+           if (minSum > sum) {
+               minSum = sum;
+               minColR = k;
+           }
+           if (maxSum < sum) {
+               maxSum = sum;
+               maxColR = k;
+           }
+           sumR += sum;
+       }
+
+       nn_comp--;
+   }
+
+   /* choose the common vector (yuck!) */
+   {
+      GLint j1, j2;
+      GLint v1 = 0, v2 = 0;
+      GLfloat err = 1e9; /* big enough */
+      GLfloat tv[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
+      for (i = 0; i < n_comp; i++) {
+         tv[0][i] = input[minColL][i];
+         tv[1][i] = input[maxColL][i];
+         tv[2][i] = input[minColR][i];
+         tv[3][i] = input[maxColR][i];
+      }
+      for (j1 = 0; j1 < 2; j1++) {
+         for (j2 = 2; j2 < 4; j2++) {
+            GLfloat e = 0.0F;
+            for (i = 0; i < n_comp; i++) {
+               e += (tv[j1][i] - tv[j2][i]) * (tv[j1][i] - tv[j2][i]);
+            }
+            if (e < err) {
+               err = e;
+               v1 = j1;
+               v2 = j2;
+            }
+         }
+      }
+      for (i = 0; i < n_comp; i++) {
+         vec[0][i] = tv[1 - v1][i];
+         vec[1][i] = (tv[v1][i] * sumL + tv[v2][i] * sumR) / (sumL + sumR);
+         vec[2][i] = tv[5 - v2][i];
+      }
+   }
+
+   /* left microtile */
+   cc[0] = 0;
+   if (minColL != maxColL) {
+      /* compute interpolation vector */
+      MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
+
+      /* add in texels */
+      lolo = 0;
+      for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
+         GLint texel;
+         /* interpolate color */
+         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+         /* add in texel */
+         lolo <<= 2;
+         lolo |= texel;
+      }
+      
+      cc[0] = lolo;
+   }
+
+   /* right microtile */
+   cc[1] = 0;
+   if (minColR != maxColR) {
+      /* compute interpolation vector */
+      MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[1]);
+
+      /* add in texels */
+      lohi = 0;
+      for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
+         GLint texel;
+         /* interpolate color */
+         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+         /* add in texel */
+         lohi <<= 2;
+         lohi |= texel;
+      }
+
+      cc[1] = lohi;
+   }
+
+   FX64_MOV32(hi, 7); /* alpha = "011" + lerp = 1 */
+   for (j = n_vect - 1; j >= 0; j--) {
+      /* add in alphas */
+      FX64_SHL(hi, 5);
+      FX64_OR32(hi, (GLuint)(vec[j][ACOMP] / 8.0F));
+   }
+   for (j = n_vect - 1; j >= 0; j--) {
+      for (i = 0; i < n_comp - 1; i++) {
+         /* add in colors */
+         FX64_SHL(hi, 5);
+         FX64_OR32(hi, (GLuint)(vec[j][i] / 8.0F));
+      }
+   }
+   ((Fx64 *)cc)[1] = hi;
+}
+
+
+static void
+fxt1_quantize_HI (GLuint *cc,
+                  GLubyte input[N_TEXELS][MAX_COMP],
+                  GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
+{
+   const GLint n_vect = 6; /* highest vector number */
+   const GLint n_comp = 3; /* 3 components: R, G, B */
+   GLfloat b = 0.0F;       /* phoudoin: silent compiler! */
+   GLfloat iv[MAX_COMP];   /* interpolation vector */
+   GLint i, k;
+   GLuint hihi; /* high quadword: hi dword */
+
+   GLint minSum = 2000; /* big enough */
+   GLint maxSum = -1; /* small enough */
+   GLint minCol = 0; /* phoudoin: silent compiler! */
+   GLint maxCol = 0; /* phoudoin: silent compiler! */
+
+   /* Our solution here is to find the darkest and brightest colors in
+    * the 8x4 tile and use those as the two representative colors.
+    * There are probably better algorithms to use (histogram-based).
+    */
+   for (k = 0; k < n; k++) {
+      GLint sum = 0;
+      for (i = 0; i < n_comp; i++) {
+         sum += reord[k][i];
+      }
+      if (minSum > sum) {
+         minSum = sum;
+         minCol = k;
+      }
+      if (maxSum < sum) {
+         maxSum = sum;
+         maxCol = k;
+      }
+   }
+
+   hihi = 0; /* cc-hi = "00" */
+   for (i = 0; i < n_comp; i++) {
+      /* add in colors */
+      hihi <<= 5;
+      hihi |= reord[maxCol][i] >> 3;
+   }
+   for (i = 0; i < n_comp; i++) {
+      /* add in colors */
+      hihi <<= 5;
+      hihi |= reord[minCol][i] >> 3;
+   }
+   cc[3] = hihi;
+   cc[0] = cc[1] = cc[2] = 0;
+
+   /* compute interpolation vector */
+   if (minCol != maxCol) {
+      MAKEIVEC(n_vect, n_comp, iv, b, reord[minCol], reord[maxCol]);
+   }
+
+   /* add in texels */
+   for (k = N_TEXELS - 1; k >= 0; k--) {
+      GLint t = k * 3;
+      GLuint *kk = (GLuint *)((char *)cc + t / 8);
+      GLint texel = n_vect + 1; /* transparent black */
+
+      if (!ISTBLACK(input[k])) {
+         if (minCol != maxCol) {
+            /* interpolate color */
+            CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+            /* add in texel */
+            kk[0] |= texel << (t & 7);
+         }
+      } else {
+         /* add in texel */
+         kk[0] |= texel << (t & 7);
+      }
+   }
+}
+
+
+static void
+fxt1_quantize_MIXED1 (GLuint *cc,
+                      GLubyte input[N_TEXELS][MAX_COMP])
+{
+   const GLint n_vect = 2; /* highest vector number in each microtile */
+   const GLint n_comp = 3; /* 3 components: R, G, B */
+   GLubyte vec[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
+   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
+   GLint i, j, k;
+   Fx64 hi; /* high quadword */
+   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
+
+   GLint minSum;
+   GLint maxSum;
+   GLint minColL = 0, maxColL = -1;
+   GLint minColR = 0, maxColR = -1;
+
+   /* Our solution here is to find the darkest and brightest colors in
+    * the 4x4 tile and use those as the two representative colors.
+    * There are probably better algorithms to use (histogram-based).
+    */
+   minSum = 2000; /* big enough */
+   maxSum = -1; /* small enough */
+   for (k = 0; k < N_TEXELS / 2; k++) {
+      if (!ISTBLACK(input[k])) {
+         GLint sum = 0;
+         for (i = 0; i < n_comp; i++) {
+            sum += input[k][i];
+         }
+         if (minSum > sum) {
+            minSum = sum;
+            minColL = k;
+         }
+         if (maxSum < sum) {
+            maxSum = sum;
+            maxColL = k;
+         }
+      }
+   }
+   minSum = 2000; /* big enough */
+   maxSum = -1; /* small enough */
+   for (; k < N_TEXELS; k++) {
+      if (!ISTBLACK(input[k])) {
+         GLint sum = 0;
+         for (i = 0; i < n_comp; i++) {
+            sum += input[k][i];
+         }
+         if (minSum > sum) {
+            minSum = sum;
+            minColR = k;
+         }
+         if (maxSum < sum) {
+            maxSum = sum;
+            maxColR = k;
+         }
+      }
+   }
+
+   /* left microtile */
+   if (maxColL == -1) {
+      /* all transparent black */
+      cc[0] = ~0u;
+      for (i = 0; i < n_comp; i++) {
+         vec[0][i] = 0;
+         vec[1][i] = 0;
+      }
+   } else {
+      cc[0] = 0;
+      for (i = 0; i < n_comp; i++) {
+         vec[0][i] = input[minColL][i];
+         vec[1][i] = input[maxColL][i];
+      }
+      if (minColL != maxColL) {
+         /* compute interpolation vector */
+         MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
+
+         /* add in texels */
+         lolo = 0;
+         for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
+            GLint texel = n_vect + 1; /* transparent black */
+            if (!ISTBLACK(input[k])) {
+               /* interpolate color */
+               CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+            }
+            /* add in texel */
+            lolo <<= 2;
+            lolo |= texel;
+         }
+         cc[0] = lolo;
+      }
+   }
+
+   /* right microtile */
+   if (maxColR == -1) {
+      /* all transparent black */
+      cc[1] = ~0u;
+      for (i = 0; i < n_comp; i++) {
+         vec[2][i] = 0;
+         vec[3][i] = 0;
+      }
+   } else {
+      cc[1] = 0;
+      for (i = 0; i < n_comp; i++) {
+         vec[2][i] = input[minColR][i];
+         vec[3][i] = input[maxColR][i];
+      }
+      if (minColR != maxColR) {
+         /* compute interpolation vector */
+         MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[3]);
+
+         /* add in texels */
+         lohi = 0;
+         for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
+            GLint texel = n_vect + 1; /* transparent black */
+            if (!ISTBLACK(input[k])) {
+               /* interpolate color */
+               CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+            }
+            /* add in texel */
+            lohi <<= 2;
+            lohi |= texel;
+         }
+         cc[1] = lohi;
+      }
+   }
+
+   FX64_MOV32(hi, 9 | (vec[3][GCOMP] & 4) | ((vec[1][GCOMP] >> 1) & 2)); /* chroma = "1" */
+   for (j = 2 * 2 - 1; j >= 0; j--) {
+      for (i = 0; i < n_comp; i++) {
+         /* add in colors */
+         FX64_SHL(hi, 5);
+         FX64_OR32(hi, vec[j][i] >> 3);
+      }
+   }
+   ((Fx64 *)cc)[1] = hi;
+}
+
+
+static void
+fxt1_quantize_MIXED0 (GLuint *cc,
+                      GLubyte input[N_TEXELS][MAX_COMP])
+{
+   const GLint n_vect = 3; /* highest vector number in each microtile */
+   const GLint n_comp = 3; /* 3 components: R, G, B */
+   GLubyte vec[2 * 2][MAX_COMP]; /* 2 extrema for each sub-block */
+   GLfloat b, iv[MAX_COMP]; /* interpolation vector */
+   GLint i, j, k;
+   Fx64 hi; /* high quadword */
+   GLuint lohi, lolo; /* low quadword: hi dword, lo dword */
+
+   GLint minColL = 0, maxColL = 0;
+   GLint minColR = 0, maxColR = 0;
+#if 0
+   GLint minSum;
+   GLint maxSum;
+
+   /* Our solution here is to find the darkest and brightest colors in
+    * the 4x4 tile and use those as the two representative colors.
+    * There are probably better algorithms to use (histogram-based).
+    */
+   minSum = 2000; /* big enough */
+   maxSum = -1; /* small enough */
+   for (k = 0; k < N_TEXELS / 2; k++) {
+      GLint sum = 0;
+      for (i = 0; i < n_comp; i++) {
+         sum += input[k][i];
+      }
+      if (minSum > sum) {
+         minSum = sum;
+         minColL = k;
+      }
+      if (maxSum < sum) {
+         maxSum = sum;
+         maxColL = k;
+      }
+   }
+   minSum = 2000; /* big enough */
+   maxSum = -1; /* small enough */
+   for (; k < N_TEXELS; k++) {
+      GLint sum = 0;
+      for (i = 0; i < n_comp; i++) {
+         sum += input[k][i];
+      }
+      if (minSum > sum) {
+         minSum = sum;
+         minColR = k;
+      }
+      if (maxSum < sum) {
+         maxSum = sum;
+         maxColR = k;
+      }
+   }
+#else
+   GLint minVal;
+   GLint maxVal;
+   GLint maxVarL = fxt1_variance(NULL, input, n_comp, N_TEXELS / 2);
+   GLint maxVarR = fxt1_variance(NULL, &input[N_TEXELS / 2], n_comp, N_TEXELS / 2);
+
+   /* Scan the channel with max variance for lo & hi
+    * and use those as the two representative colors.
+    */
+   minVal = 2000; /* big enough */
+   maxVal = -1; /* small enough */
+   for (k = 0; k < N_TEXELS / 2; k++) {
+      GLint t = input[k][maxVarL];
+      if (minVal > t) {
+         minVal = t;
+         minColL = k;
+      }
+      if (maxVal < t) {
+         maxVal = t;
+         maxColL = k;
+      }
+   }
+   minVal = 2000; /* big enough */
+   maxVal = -1; /* small enough */
+   for (; k < N_TEXELS; k++) {
+      GLint t = input[k][maxVarR];
+      if (minVal > t) {
+         minVal = t;
+         minColR = k;
+      }
+      if (maxVal < t) {
+         maxVal = t;
+         maxColR = k;
+      }
+   }
+#endif
+
+   /* left microtile */
+   cc[0] = 0;
+   for (i = 0; i < n_comp; i++) {
+      vec[0][i] = input[minColL][i];
+      vec[1][i] = input[maxColL][i];
+   }
+   if (minColL != maxColL) {
+      /* compute interpolation vector */
+      MAKEIVEC(n_vect, n_comp, iv, b, vec[0], vec[1]);
+
+      /* add in texels */
+      lolo = 0;
+      for (k = N_TEXELS / 2 - 1; k >= 0; k--) {
+         GLint texel;
+         /* interpolate color */
+         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+         /* add in texel */
+         lolo <<= 2;
+         lolo |= texel;
+      }
+
+      /* funky encoding for LSB of green */
+      if ((GLint)((lolo >> 1) & 1) != (((vec[1][GCOMP] ^ vec[0][GCOMP]) >> 2) & 1)) {
+         for (i = 0; i < n_comp; i++) {
+            vec[1][i] = input[minColL][i];
+            vec[0][i] = input[maxColL][i];
+         }
+         lolo = ~lolo;
+      }
+      
+      cc[0] = lolo;
+   }
+
+   /* right microtile */
+   cc[1] = 0;
+   for (i = 0; i < n_comp; i++) {
+      vec[2][i] = input[minColR][i];
+      vec[3][i] = input[maxColR][i];
+   }
+   if (minColR != maxColR) {
+      /* compute interpolation vector */
+      MAKEIVEC(n_vect, n_comp, iv, b, vec[2], vec[3]);
+
+      /* add in texels */
+      lohi = 0;
+      for (k = N_TEXELS - 1; k >= N_TEXELS / 2; k--) {
+         GLint texel;
+         /* interpolate color */
+         CALCCDOT(texel, n_vect, n_comp, iv, b, input[k]);
+         /* add in texel */
+         lohi <<= 2;
+         lohi |= texel;
+      }
+
+      /* funky encoding for LSB of green */
+      if ((GLint)((lohi >> 1) & 1) != (((vec[3][GCOMP] ^ vec[2][GCOMP]) >> 2) & 1)) {
+         for (i = 0; i < n_comp; i++) {
+            vec[3][i] = input[minColR][i];
+            vec[2][i] = input[maxColR][i];
+         }
+         lohi = ~lohi;
+      }
+
+      cc[1] = lohi;
+   }
+
+   FX64_MOV32(hi, 8 | (vec[3][GCOMP] & 4) | ((vec[1][GCOMP] >> 1) & 2)); /* chroma = "1" */
+   for (j = 2 * 2 - 1; j >= 0; j--) {
+      for (i = 0; i < n_comp; i++) {
+         /* add in colors */
+         FX64_SHL(hi, 5);
+         FX64_OR32(hi, vec[j][i] >> 3);
+      }
+   }
+   ((Fx64 *)cc)[1] = hi;
+}
+
+
+static void
+fxt1_quantize (GLuint *cc, const GLubyte *lines[], GLint comps)
+{
+   GLint trualpha;
+   GLubyte reord[N_TEXELS][MAX_COMP];
+
+   GLubyte input[N_TEXELS][MAX_COMP];
+   GLint i, k, l;
+
+   if (comps == 3) {
+      /* make the whole block opaque */
+      memset(input, -1, sizeof(input));
+   }
+
+   /* 8 texels each line */
+   for (l = 0; l < 4; l++) {
+      for (k = 0; k < 4; k++) {
+         for (i = 0; i < comps; i++) {
+            input[k + l * 4][i] = *lines[l]++;
+         }
+      }
+      for (; k < 8; k++) {
+         for (i = 0; i < comps; i++) {
+            input[k + l * 4 + 12][i] = *lines[l]++;
+         }
+      }
+   }
+
+   /* block layout:
+    * 00, 01, 02, 03, 08, 09, 0a, 0b
+    * 10, 11, 12, 13, 18, 19, 1a, 1b
+    * 04, 05, 06, 07, 0c, 0d, 0e, 0f
+    * 14, 15, 16, 17, 1c, 1d, 1e, 1f
+    */
+
+   /* [dBorca]
+    * stupidity flows forth from this
+    */
+   l = N_TEXELS;
+   trualpha = 0;
+   if (comps == 4) {
+      /* skip all transparent black texels */
+      l = 0;
+      for (k = 0; k < N_TEXELS; k++) {
+         /* test all components against 0 */
+         if (!ISTBLACK(input[k])) {
+            /* texel is not transparent black */
+            COPY_4UBV(reord[l], input[k]);
+            if (reord[l][ACOMP] < (255 - ALPHA_TS)) {
+               /* non-opaque texel */
+               trualpha = !0;
+            }
+            l++;
+         }
+      }
+   }
+
+#if 0
+   if (trualpha) {
+      fxt1_quantize_ALPHA0(cc, input, reord, l);
+   } else if (l == 0) {
+      cc[0] = cc[1] = cc[2] = -1;
+      cc[3] = 0;
+   } else if (l < N_TEXELS) {
+      fxt1_quantize_HI(cc, input, reord, l);
+   } else {
+      fxt1_quantize_CHROMA(cc, input);
+   }
+   (void)fxt1_quantize_ALPHA1;
+   (void)fxt1_quantize_MIXED1;
+   (void)fxt1_quantize_MIXED0;
+#else
+   if (trualpha) {
+      fxt1_quantize_ALPHA1(cc, input);
+   } else if (l == 0) {
+      cc[0] = cc[1] = cc[2] = ~0u;
+      cc[3] = 0;
+   } else if (l < N_TEXELS) {
+      fxt1_quantize_MIXED1(cc, input);
+   } else {
+      fxt1_quantize_MIXED0(cc, input);
+   }
+   (void)fxt1_quantize_ALPHA0;
+   (void)fxt1_quantize_HI;
+   (void)fxt1_quantize_CHROMA;
+#endif
+}
+
+
+static void
+fxt1_encode (GLuint width, GLuint height, GLint comps,
+             const void *source, GLint srcRowStride,
+             void *dest, GLint destRowStride)
+{
+   GLuint x, y;
+   const GLubyte *data;
+   GLuint *encoded = (GLuint *)dest;
+   void *newSource = NULL;
+
+   assert(comps == 3 || comps == 4);
+
+   /* Replicate image if width is not M8 or height is not M4 */
+   if ((width & 7) | (height & 3)) {
+      GLint newWidth = (width + 7) & ~7;
+      GLint newHeight = (height + 3) & ~3;
+      newSource = malloc(comps * newWidth * newHeight * sizeof(GLchan));
+      if (!newSource) {
+         GET_CURRENT_CONTEXT(ctx);
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
+         goto cleanUp;
+      }
+      _mesa_upscale_teximage2d(width, height, newWidth, newHeight,
+                               comps, (const GLchan *) source,
+                               srcRowStride, (GLchan *) newSource);
+      source = newSource;
+      width = newWidth;
+      height = newHeight;
+      srcRowStride = comps * newWidth;
+   }
+
+   /* convert from 16/32-bit channels to GLubyte if needed */
+   if (CHAN_TYPE != GL_UNSIGNED_BYTE) {
+      const GLuint n = width * height * comps;
+      const GLchan *src = (const GLchan *) source;
+      GLubyte *dest = (GLubyte *) malloc(n * sizeof(GLubyte));
+      GLuint i;
+      if (!dest) {
+         GET_CURRENT_CONTEXT(ctx);
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
+         goto cleanUp;
+      }
+      for (i = 0; i < n; i++) {
+         dest[i] = CHAN_TO_UBYTE(src[i]);
+      }
+      if (newSource != NULL) {
+         free(newSource);
+      }
+      newSource = dest;  /* we'll free this buffer before returning */
+      source = dest;  /* the new, GLubyte incoming image */
+   }
+
+   data = (const GLubyte *) source;
+   destRowStride = (destRowStride - width * 2) / 4;
+   for (y = 0; y < height; y += 4) {
+      GLuint offs = 0 + (y + 0) * srcRowStride;
+      for (x = 0; x < width; x += 8) {
+         const GLubyte *lines[4];
+         lines[0] = &data[offs];
+         lines[1] = lines[0] + srcRowStride;
+         lines[2] = lines[1] + srcRowStride;
+         lines[3] = lines[2] + srcRowStride;
+         offs += 8 * comps;
+         fxt1_quantize(encoded, lines, comps);
+         /* 128 bits per 8x4 block */
+         encoded += 4;
+      }
+      encoded += destRowStride;
+   }
+
+ cleanUp:
+   if (newSource != NULL) {
+      free(newSource);
+   }
+}
+
+
+/***************************************************************************\
+ * FXT1 decoder
+ *
+ * The decoder is based on GL_3DFX_texture_compression_FXT1
+ * specification and serves as a concept for the encoder.
+\***************************************************************************/
+
+
+/* lookup table for scaling 5 bit colors up to 8 bits */
+static const GLubyte _rgb_scale_5[] = {
+   0,   8,   16,  25,  33,  41,  49,  58,
+   66,  74,  82,  90,  99,  107, 115, 123,
+   132, 140, 148, 156, 165, 173, 181, 189,
+   197, 206, 214, 222, 230, 239, 247, 255
+};
+
+/* lookup table for scaling 6 bit colors up to 8 bits */
+static const GLubyte _rgb_scale_6[] = {
+   0,   4,   8,   12,  16,  20,  24,  28,
+   32,  36,  40,  45,  49,  53,  57,  61,
+   65,  69,  73,  77,  81,  85,  89,  93,
+   97,  101, 105, 109, 113, 117, 121, 125,
+   130, 134, 138, 142, 146, 150, 154, 158,
+   162, 166, 170, 174, 178, 182, 186, 190,
+   194, 198, 202, 206, 210, 215, 219, 223,
+   227, 231, 235, 239, 243, 247, 251, 255
+};
+
+
+#define CC_SEL(cc, which) (((GLuint *)(cc))[(which) / 32] >> ((which) & 31))
+#define UP5(c) _rgb_scale_5[(c) & 31]
+#define UP6(c, b) _rgb_scale_6[(((c) & 31) << 1) | ((b) & 1)]
+#define LERP(n, t, c0, c1) (((n) - (t)) * (c0) + (t) * (c1) + (n) / 2) / (n)
+
+
+static void
+fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba)
+{
+   const GLuint *cc;
+
+   t *= 3;
+   cc = (const GLuint *)(code + t / 8);
+   t = (cc[0] >> (t & 7)) & 7;
+
+   if (t == 7) {
+      rgba[RCOMP] = rgba[GCOMP] = rgba[BCOMP] = rgba[ACOMP] = 0;
+   } else {
+      GLubyte r, g, b;
+      cc = (const GLuint *)(code + 12);
+      if (t == 0) {
+         b = UP5(CC_SEL(cc, 0));
+         g = UP5(CC_SEL(cc, 5));
+         r = UP5(CC_SEL(cc, 10));
+      } else if (t == 6) {
+         b = UP5(CC_SEL(cc, 15));
+         g = UP5(CC_SEL(cc, 20));
+         r = UP5(CC_SEL(cc, 25));
+      } else {
+         b = LERP(6, t, UP5(CC_SEL(cc, 0)), UP5(CC_SEL(cc, 15)));
+         g = LERP(6, t, UP5(CC_SEL(cc, 5)), UP5(CC_SEL(cc, 20)));
+         r = LERP(6, t, UP5(CC_SEL(cc, 10)), UP5(CC_SEL(cc, 25)));
+      }
+      rgba[RCOMP] = UBYTE_TO_CHAN(r);
+      rgba[GCOMP] = UBYTE_TO_CHAN(g);
+      rgba[BCOMP] = UBYTE_TO_CHAN(b);
+      rgba[ACOMP] = CHAN_MAX;
+   }
+}
+
+
+static void
+fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba)
+{
+   const GLuint *cc;
+   GLuint kk;
+
+   cc = (const GLuint *)code;
+   if (t & 16) {
+      cc++;
+      t &= 15;
+   }
+   t = (cc[0] >> (t * 2)) & 3;
+
+   t *= 15;
+   cc = (const GLuint *)(code + 8 + t / 8);
+   kk = cc[0] >> (t & 7);
+   rgba[BCOMP] = UBYTE_TO_CHAN( UP5(kk) );
+   rgba[GCOMP] = UBYTE_TO_CHAN( UP5(kk >> 5) );
+   rgba[RCOMP] = UBYTE_TO_CHAN( UP5(kk >> 10) );
+   rgba[ACOMP] = CHAN_MAX;
+}
+
+
+static void
+fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
+{
+   const GLuint *cc;
+   GLuint col[2][3];
+   GLint glsb, selb;
+
+   cc = (const GLuint *)code;
+   if (t & 16) {
+      t &= 15;
+      t = (cc[1] >> (t * 2)) & 3;
+      /* col 2 */
+      col[0][BCOMP] = (*(const GLuint *)(code + 11)) >> 6;
+      col[0][GCOMP] = CC_SEL(cc, 99);
+      col[0][RCOMP] = CC_SEL(cc, 104);
+      /* col 3 */
+      col[1][BCOMP] = CC_SEL(cc, 109);
+      col[1][GCOMP] = CC_SEL(cc, 114);
+      col[1][RCOMP] = CC_SEL(cc, 119);
+      glsb = CC_SEL(cc, 126);
+      selb = CC_SEL(cc, 33);
+   } else {
+      t = (cc[0] >> (t * 2)) & 3;
+      /* col 0 */
+      col[0][BCOMP] = CC_SEL(cc, 64);
+      col[0][GCOMP] = CC_SEL(cc, 69);
+      col[0][RCOMP] = CC_SEL(cc, 74);
+      /* col 1 */
+      col[1][BCOMP] = CC_SEL(cc, 79);
+      col[1][GCOMP] = CC_SEL(cc, 84);
+      col[1][RCOMP] = CC_SEL(cc, 89);
+      glsb = CC_SEL(cc, 125);
+      selb = CC_SEL(cc, 1);
+   }
+
+   if (CC_SEL(cc, 124) & 1) {
+      /* alpha[0] == 1 */
+
+      if (t == 3) {
+         /* zero */
+         rgba[RCOMP] = rgba[BCOMP] = rgba[GCOMP] = rgba[ACOMP] = 0;
+      } else {
+         GLubyte r, g, b;
+         if (t == 0) {
+            b = UP5(col[0][BCOMP]);
+            g = UP5(col[0][GCOMP]);
+            r = UP5(col[0][RCOMP]);
+         } else if (t == 2) {
+            b = UP5(col[1][BCOMP]);
+            g = UP6(col[1][GCOMP], glsb);
+            r = UP5(col[1][RCOMP]);
+         } else {
+            b = (UP5(col[0][BCOMP]) + UP5(col[1][BCOMP])) / 2;
+            g = (UP5(col[0][GCOMP]) + UP6(col[1][GCOMP], glsb)) / 2;
+            r = (UP5(col[0][RCOMP]) + UP5(col[1][RCOMP])) / 2;
+         }
+         rgba[RCOMP] = UBYTE_TO_CHAN(r);
+         rgba[GCOMP] = UBYTE_TO_CHAN(g);
+         rgba[BCOMP] = UBYTE_TO_CHAN(b);
+         rgba[ACOMP] = CHAN_MAX;
+      }
+   } else {
+      /* alpha[0] == 0 */
+      GLubyte r, g, b;
+      if (t == 0) {
+         b = UP5(col[0][BCOMP]);
+         g = UP6(col[0][GCOMP], glsb ^ selb);
+         r = UP5(col[0][RCOMP]);
+      } else if (t == 3) {
+         b = UP5(col[1][BCOMP]);
+         g = UP6(col[1][GCOMP], glsb);
+         r = UP5(col[1][RCOMP]);
+      } else {
+         b = LERP(3, t, UP5(col[0][BCOMP]), UP5(col[1][BCOMP]));
+         g = LERP(3, t, UP6(col[0][GCOMP], glsb ^ selb),
+                        UP6(col[1][GCOMP], glsb));
+         r = LERP(3, t, UP5(col[0][RCOMP]), UP5(col[1][RCOMP]));
+      }
+      rgba[RCOMP] = UBYTE_TO_CHAN(r);
+      rgba[GCOMP] = UBYTE_TO_CHAN(g);
+      rgba[BCOMP] = UBYTE_TO_CHAN(b);
+      rgba[ACOMP] = CHAN_MAX;
+   }
+}
+
+
+static void
+fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba)
+{
+   const GLuint *cc;
+   GLubyte r, g, b, a;
+
+   cc = (const GLuint *)code;
+   if (CC_SEL(cc, 124) & 1) {
+      /* lerp == 1 */
+      GLuint col0[4];
+
+      if (t & 16) {
+         t &= 15;
+         t = (cc[1] >> (t * 2)) & 3;
+         /* col 2 */
+         col0[BCOMP] = (*(const GLuint *)(code + 11)) >> 6;
+         col0[GCOMP] = CC_SEL(cc, 99);
+         col0[RCOMP] = CC_SEL(cc, 104);
+         col0[ACOMP] = CC_SEL(cc, 119);
+      } else {
+         t = (cc[0] >> (t * 2)) & 3;
+         /* col 0 */
+         col0[BCOMP] = CC_SEL(cc, 64);
+         col0[GCOMP] = CC_SEL(cc, 69);
+         col0[RCOMP] = CC_SEL(cc, 74);
+         col0[ACOMP] = CC_SEL(cc, 109);
+      }
+
+      if (t == 0) {
+         b = UP5(col0[BCOMP]);
+         g = UP5(col0[GCOMP]);
+         r = UP5(col0[RCOMP]);
+         a = UP5(col0[ACOMP]);
+      } else if (t == 3) {
+         b = UP5(CC_SEL(cc, 79));
+         g = UP5(CC_SEL(cc, 84));
+         r = UP5(CC_SEL(cc, 89));
+         a = UP5(CC_SEL(cc, 114));
+      } else {
+         b = LERP(3, t, UP5(col0[BCOMP]), UP5(CC_SEL(cc, 79)));
+         g = LERP(3, t, UP5(col0[GCOMP]), UP5(CC_SEL(cc, 84)));
+         r = LERP(3, t, UP5(col0[RCOMP]), UP5(CC_SEL(cc, 89)));
+         a = LERP(3, t, UP5(col0[ACOMP]), UP5(CC_SEL(cc, 114)));
+      }
+   } else {
+      /* lerp == 0 */
+
+      if (t & 16) {
+         cc++;
+         t &= 15;
+      }
+      t = (cc[0] >> (t * 2)) & 3;
+
+      if (t == 3) {
+         /* zero */
+         r = g = b = a = 0;
+      } else {
+         GLuint kk;
+         cc = (const GLuint *)code;
+         a = UP5(cc[3] >> (t * 5 + 13));
+         t *= 15;
+         cc = (const GLuint *)(code + 8 + t / 8);
+         kk = cc[0] >> (t & 7);
+         b = UP5(kk);
+         g = UP5(kk >> 5);
+         r = UP5(kk >> 10);
+      }
+   }
+   rgba[RCOMP] = UBYTE_TO_CHAN(r);
+   rgba[GCOMP] = UBYTE_TO_CHAN(g);
+   rgba[BCOMP] = UBYTE_TO_CHAN(b);
+   rgba[ACOMP] = UBYTE_TO_CHAN(a);
+}
+
+
+void
+fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
+               GLint i, GLint j, GLchan *rgba)
+{
+   static void (*decode_1[]) (const GLubyte *, GLint, GLchan *) = {
+      fxt1_decode_1HI,     /* cc-high   = "00?" */
+      fxt1_decode_1HI,     /* cc-high   = "00?" */
+      fxt1_decode_1CHROMA, /* cc-chroma = "010" */
+      fxt1_decode_1ALPHA,  /* alpha     = "011" */
+      fxt1_decode_1MIXED,  /* mixed     = "1??" */
+      fxt1_decode_1MIXED,  /* mixed     = "1??" */
+      fxt1_decode_1MIXED,  /* mixed     = "1??" */
+      fxt1_decode_1MIXED   /* mixed     = "1??" */
+   };
+
+   const GLubyte *code = (const GLubyte *)texture +
+                         ((j / 4) * (stride / 8) + (i / 8)) * 16;
+   GLint mode = CC_SEL(code, 125);
+   GLint t = i & 7;
+
+   if (t & 4) {
+      t += 12;
+   }
+   t += (j & 3) * 4;
+
+   decode_1[mode](code, t, rgba);
+}
+
+
+#endif /* FEATURE_texture_fxt1 */
diff --git a/mesalib/src/mesa/main/texcompress_fxt1.h b/mesalib/src/mesa/main/texcompress_fxt1.h
index a6beb07e5..bd84082e9 100644
--- a/mesalib/src/mesa/main/texcompress_fxt1.h
+++ b/mesalib/src/mesa/main/texcompress_fxt1.h
@@ -1,62 +1,62 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef TEXCOMPRESS_FXT1_H
-#define TEXCOMPRESS_FXT1_H
-
-#include "glheader.h"
-#include "mfeatures.h"
-#include "texstore.h"
-
-struct gl_texture_image;
-
-#if FEATURE_texture_fxt1
-
-extern GLboolean
-_mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS);
-
-extern GLboolean
-_mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS);
-
-extern void
-_mesa_fetch_texel_2d_f_rgba_fxt1(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_rgb_fxt1(const struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, GLfloat *texel);
-
-#else /* FEATURE_texture_fxt1 */
-
-/* these are used only in texstore_funcs[] */
-#define _mesa_texstore_rgb_fxt1 NULL
-#define _mesa_texstore_rgba_fxt1 NULL
-
-/* these are used only in texfetch_funcs[] */
-#define _mesa_fetch_texel_2d_f_rgba_fxt1 NULL
-#define _mesa_fetch_texel_2d_f_rgb_fxt1 NULL
-
-#endif /* FEATURE_texture_fxt1 */
-
-#endif /* TEXCOMPRESS_FXT1_H */
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TEXCOMPRESS_FXT1_H
+#define TEXCOMPRESS_FXT1_H
+
+#include "glheader.h"
+#include "mfeatures.h"
+#include "texstore.h"
+
+struct swrast_texture_image;
+
+#if FEATURE_texture_fxt1
+
+extern GLboolean
+_mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS);
+
+extern void
+_mesa_fetch_texel_2d_f_rgba_fxt1(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rgb_fxt1(const struct swrast_texture_image *texImage,
+                                GLint i, GLint j, GLint k, GLfloat *texel);
+
+#else /* FEATURE_texture_fxt1 */
+
+/* these are used only in texstore_funcs[] */
+#define _mesa_texstore_rgb_fxt1 NULL
+#define _mesa_texstore_rgba_fxt1 NULL
+
+/* these are used only in texfetch_funcs[] */
+#define _mesa_fetch_texel_2d_f_rgba_fxt1 NULL
+#define _mesa_fetch_texel_2d_f_rgb_fxt1 NULL
+
+#endif /* FEATURE_texture_fxt1 */
+
+#endif /* TEXCOMPRESS_FXT1_H */
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.c b/mesalib/src/mesa/main/texcompress_rgtc.c
index d75546a92..7af3d6762 100644
--- a/mesalib/src/mesa/main/texcompress_rgtc.c
+++ b/mesalib/src/mesa/main/texcompress_rgtc.c
@@ -1,460 +1,462 @@
-/*
- * Copyright (C) 2011 Red Hat Inc.
- * 
- * block compression parts are:
- * Copyright (C) 2004  Roland Scheidegger   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Author:
- *    Dave Airlie
- */
-
-/**
- * \file texcompress_rgtc.c
- * GL_EXT_texture_compression_rgtc support.
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "colormac.h"
-#include "image.h"
-#include "macros.h"
-#include "mfeatures.h"
-#include "mipmap.h"
-#include "texcompress.h"
-#include "texcompress_rgtc.h"
-#include "texstore.h"
-
-#define RGTC_DEBUG 0
-
-static void unsigned_encode_rgtc_chan(GLubyte *blkaddr, GLubyte srccolors[4][4],
-					GLint numxpixels, GLint numypixels);
-static void signed_encode_rgtc_chan(GLbyte *blkaddr, GLbyte srccolors[4][4],
-			     GLint numxpixels, GLint numypixels);
-
-static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata,
-				      unsigned i, unsigned j, GLubyte *value, unsigned comps);
-
-static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata,
-				      unsigned i, unsigned j, GLbyte *value, unsigned comps);
-
-static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr,
-			  GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
-{
-   GLubyte i, j;
-   const GLchan *curaddr;
-   for (j = 0; j < numypixels; j++) {
-      curaddr = srcaddr + j * srcRowStride * comps;
-      for (i = 0; i < numxpixels; i++) {
-	 srcpixels[j][i] = *curaddr / (CHAN_MAX / 255);
-	 curaddr += comps;
-      }
-   }
-}
-
-static void extractsrc_s( GLbyte srcpixels[4][4], const GLfloat *srcaddr,
-			  GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
-{
-   GLubyte i, j;
-   const GLfloat *curaddr;
-   for (j = 0; j < numypixels; j++) {
-      curaddr = srcaddr + j * srcRowStride * comps;
-      for (i = 0; i < numxpixels; i++) {
-	 srcpixels[j][i] = FLOAT_TO_BYTE_TEX(*curaddr);
-	 curaddr += comps;
-      }
-   }
-}
-
-
-GLboolean
-_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
-{
-   GLubyte *dst;
-   const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
-   const GLchan *tempImage = NULL;
-   int i, j;
-   int numxpixels, numypixels;
-   const GLchan *srcaddr;
-   GLubyte srcpixels[4][4];
-   GLubyte *blkaddr;
-   GLint dstRowDiff;
-   ASSERT(dstFormat == MESA_FORMAT_RED_RGTC1 ||
-          dstFormat == MESA_FORMAT_L_LATC1);
-   ASSERT(dstXoffset % 4 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset % 4 == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-
-   tempImage = _mesa_make_temp_chan_image(ctx, dims,
-					  baseInternalFormat,
-					  _mesa_get_format_base_format(dstFormat),
-					  srcWidth, srcHeight, srcDepth,
-					  srcFormat, srcType, srcAddr,
-					  srcPacking);
-   if (!tempImage)
-      return GL_FALSE; /* out of memory */
-
-   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-                                        dstFormat,
-                                        texWidth, (GLubyte *) dstAddr);
-
-   blkaddr = dst;
-   dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
-   for (j = 0; j < srcHeight; j+=4) {
-      if (srcHeight > j + 3) numypixels = 4;
-      else numypixels = srcHeight - j;
-      srcaddr = tempImage + j * srcWidth;
-      for (i = 0; i < srcWidth; i += 4) {
-	 if (srcWidth > i + 3) numxpixels = 4;
-	 else numxpixels = srcWidth - i;
-	 extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
-	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-	 srcaddr += numxpixels;
-	 blkaddr += 8;
-      }
-      blkaddr += dstRowDiff;
-   }
-   if (tempImage)
-      free((void *) tempImage);
-
-   return GL_TRUE;
-}
-
-GLboolean
-_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS)
-{
-   GLbyte *dst;
-   const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
-   const GLfloat *tempImage = NULL;
-   int i, j;
-   int numxpixels, numypixels;
-   const GLfloat *srcaddr;
-   GLbyte srcpixels[4][4];
-   GLbyte *blkaddr;
-   GLint dstRowDiff;
-   ASSERT(dstFormat == MESA_FORMAT_SIGNED_RED_RGTC1 ||
-          dstFormat == MESA_FORMAT_SIGNED_L_LATC1);
-   ASSERT(dstXoffset % 4 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset % 4 == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-   tempImage = _mesa_make_temp_float_image(ctx, dims,
-					   baseInternalFormat,
-					   _mesa_get_format_base_format(dstFormat),
-					   srcWidth, srcHeight, srcDepth,
-					   srcFormat, srcType, srcAddr,
-					   srcPacking, 0x0);
-   if (!tempImage)
-      return GL_FALSE; /* out of memory */
-
-   dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-						  dstFormat,
-						  texWidth, (GLubyte *) dstAddr);
-
-   blkaddr = dst;
-   dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
-   for (j = 0; j < srcHeight; j+=4) {
-      if (srcHeight > j + 3) numypixels = 4;
-      else numypixels = srcHeight - j;
-      srcaddr = tempImage + j * srcWidth;
-      for (i = 0; i < srcWidth; i += 4) {
-	 if (srcWidth > i + 3) numxpixels = 4;
-	 else numxpixels = srcWidth - i;
-	 extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
-	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-	 srcaddr += numxpixels;
-	 blkaddr += 8;
-      }
-      blkaddr += dstRowDiff;
-   }
-   if (tempImage)
-      free((void *) tempImage);
-
-   return GL_TRUE;
-}
-
-GLboolean
-_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
-{
-   GLubyte *dst;
-   const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
-   const GLchan *tempImage = NULL;
-   int i, j;
-   int numxpixels, numypixels;
-   const GLchan *srcaddr;
-   GLubyte srcpixels[4][4];
-   GLubyte *blkaddr;
-   GLint dstRowDiff;
-
-   ASSERT(dstFormat == MESA_FORMAT_RG_RGTC2 ||
-          dstFormat == MESA_FORMAT_LA_LATC2);
-   ASSERT(dstXoffset % 4 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset % 4 == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-   tempImage = _mesa_make_temp_chan_image(ctx, dims,
-					  baseInternalFormat,
-					  _mesa_get_format_base_format(dstFormat),
-					  srcWidth, srcHeight, srcDepth,
-					  srcFormat, srcType, srcAddr,
-					  srcPacking);
-   if (!tempImage)
-      return GL_FALSE; /* out of memory */
-
-   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-                                        dstFormat,
-                                        texWidth, (GLubyte *) dstAddr);
-
-   blkaddr = dst;
-   dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
-   for (j = 0; j < srcHeight; j+=4) {
-      if (srcHeight > j + 3) numypixels = 4;
-      else numypixels = srcHeight - j;
-      srcaddr = tempImage + j * srcWidth * 2;
-      for (i = 0; i < srcWidth; i += 4) {
-	 if (srcWidth > i + 3) numxpixels = 4;
-	 else numxpixels = srcWidth - i;
-	 extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
-	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-
-	 blkaddr += 8;
-	 extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
-	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-
-	 blkaddr += 8;
-
-	 srcaddr += numxpixels * 2;
-      }
-      blkaddr += dstRowDiff;
-   }
-   if (tempImage)
-      free((void *) tempImage);
-
-   return GL_TRUE;
-}
-
-GLboolean
-_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
-{
-   GLbyte *dst;
-   const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
-   const GLfloat *tempImage = NULL;
-   int i, j;
-   int numxpixels, numypixels;
-   const GLfloat *srcaddr;
-   GLbyte srcpixels[4][4];
-   GLbyte *blkaddr;
-   GLint dstRowDiff;
-
-   ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG_RGTC2 ||
-          dstFormat == MESA_FORMAT_SIGNED_LA_LATC2);
-   ASSERT(dstXoffset % 4 == 0);
-   ASSERT(dstYoffset % 4 == 0);
-   ASSERT(dstZoffset % 4 == 0);
-   (void) dstZoffset;
-   (void) dstImageOffsets;
-
-   tempImage = _mesa_make_temp_float_image(ctx, dims,
-					   baseInternalFormat,
-					   _mesa_get_format_base_format(dstFormat),
-					   srcWidth, srcHeight, srcDepth,
-					   srcFormat, srcType, srcAddr,
-					   srcPacking, 0x0);
-   if (!tempImage)
-      return GL_FALSE; /* out of memory */
-
-   dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
-						  dstFormat,
-						  texWidth, (GLubyte *) dstAddr);
-
-   blkaddr = dst;
-   dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
-   for (j = 0; j < srcHeight; j += 4) {
-      if (srcHeight > j + 3) numypixels = 4;
-      else numypixels = srcHeight - j;
-      srcaddr = tempImage + j * srcWidth * 2;
-      for (i = 0; i < srcWidth; i += 4) {
-	 if (srcWidth > i + 3) numxpixels = 4;
-	 else numxpixels = srcWidth - i;
-
-	 extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
-	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-	 blkaddr += 8;
-
-	 extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
-	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
-	 blkaddr += 8;
-
-	 srcaddr += numxpixels * 2;
-
-      }
-      blkaddr += dstRowDiff;
-   }
-   if (tempImage)
-      free((void *) tempImage);
-
-   return GL_TRUE;
-}
-
-void
-_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
-				 GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLubyte red;
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
-		       i, j, &red, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT(red);
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
-					GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLbyte red;
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
-		       i, j, &red, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
-				 GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLubyte red, green;
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
-		     i, j, &red, 2);
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
-		     i, j, &green, 2);
-   texel[RCOMP] = UBYTE_TO_FLOAT(red);
-   texel[GCOMP] = UBYTE_TO_FLOAT(green);
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
-				       GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLbyte red, green;
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
-		     i, j, &red, 2);
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
-		     i, j, &green, 2);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLubyte red;
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
-                       i, j, &red, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = UBYTE_TO_FLOAT(red);
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage,
-                                        GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLbyte red;
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
-                       i, j, &red, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLubyte red, green;
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
-                     i, j, &red, 2);
-   unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
-                     i, j, &green, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = UBYTE_TO_FLOAT(red);
-   texel[ACOMP] = UBYTE_TO_FLOAT(green);
-}
-
-void
-_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage,
-                                       GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLbyte red, green;
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
-                     i, j, &red, 2);
-   signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
-                     i, j, &green, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX(green);
-}
-
-#define TAG(x) unsigned_##x
-
-#define TYPE GLubyte
-#define T_MIN 0
-#define T_MAX 0xff
-
-#include "texcompress_rgtc_tmp.h"
-
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
-
-#define TAG(x) signed_##x
-#define TYPE GLbyte
-#define T_MIN (GLbyte)-128
-#define T_MAX (GLbyte)127
-
-#include "texcompress_rgtc_tmp.h"
-
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
+/*
+ * Copyright (C) 2011 Red Hat Inc.
+ * 
+ * block compression parts are:
+ * Copyright (C) 2004  Roland Scheidegger   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author:
+ *    Dave Airlie
+ */
+
+/**
+ * \file texcompress_rgtc.c
+ * GL_EXT_texture_compression_rgtc support.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "colormac.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mipmap.h"
+#include "texcompress.h"
+#include "texcompress_rgtc.h"
+#include "texstore.h"
+#include "swrast/s_context.h"
+
+
+#define RGTC_DEBUG 0
+
+static void unsigned_encode_rgtc_chan(GLubyte *blkaddr, GLubyte srccolors[4][4],
+					GLint numxpixels, GLint numypixels);
+static void signed_encode_rgtc_chan(GLbyte *blkaddr, GLbyte srccolors[4][4],
+			     GLint numxpixels, GLint numypixels);
+
+static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata,
+				      unsigned i, unsigned j, GLubyte *value, unsigned comps);
+
+static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata,
+				      unsigned i, unsigned j, GLbyte *value, unsigned comps);
+
+static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr,
+			  GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+   GLubyte i, j;
+   const GLchan *curaddr;
+   for (j = 0; j < numypixels; j++) {
+      curaddr = srcaddr + j * srcRowStride * comps;
+      for (i = 0; i < numxpixels; i++) {
+	 srcpixels[j][i] = *curaddr / (CHAN_MAX / 255);
+	 curaddr += comps;
+      }
+   }
+}
+
+static void extractsrc_s( GLbyte srcpixels[4][4], const GLfloat *srcaddr,
+			  GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+   GLubyte i, j;
+   const GLfloat *curaddr;
+   for (j = 0; j < numypixels; j++) {
+      curaddr = srcaddr + j * srcRowStride * comps;
+      for (i = 0; i < numxpixels; i++) {
+	 srcpixels[j][i] = FLOAT_TO_BYTE_TEX(*curaddr);
+	 curaddr += comps;
+      }
+   }
+}
+
+
+GLboolean
+_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
+{
+   GLubyte *dst;
+   const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+   const GLchan *tempImage = NULL;
+   int i, j;
+   int numxpixels, numypixels;
+   const GLchan *srcaddr;
+   GLubyte srcpixels[4][4];
+   GLubyte *blkaddr;
+   GLint dstRowDiff;
+   ASSERT(dstFormat == MESA_FORMAT_RED_RGTC1 ||
+          dstFormat == MESA_FORMAT_L_LATC1);
+   ASSERT(dstXoffset % 4 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset % 4 == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+
+   tempImage = _mesa_make_temp_chan_image(ctx, dims,
+					  baseInternalFormat,
+					  _mesa_get_format_base_format(dstFormat),
+					  srcWidth, srcHeight, srcDepth,
+					  srcFormat, srcType, srcAddr,
+					  srcPacking);
+   if (!tempImage)
+      return GL_FALSE; /* out of memory */
+
+   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+                                        dstFormat,
+                                        texWidth, (GLubyte *) dstAddr);
+
+   blkaddr = dst;
+   dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
+   for (j = 0; j < srcHeight; j+=4) {
+      if (srcHeight > j + 3) numypixels = 4;
+      else numypixels = srcHeight - j;
+      srcaddr = tempImage + j * srcWidth;
+      for (i = 0; i < srcWidth; i += 4) {
+	 if (srcWidth > i + 3) numxpixels = 4;
+	 else numxpixels = srcWidth - i;
+	 extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+	 srcaddr += numxpixels;
+	 blkaddr += 8;
+      }
+      blkaddr += dstRowDiff;
+   }
+   if (tempImage)
+      free((void *) tempImage);
+
+   return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS)
+{
+   GLbyte *dst;
+   const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+   const GLfloat *tempImage = NULL;
+   int i, j;
+   int numxpixels, numypixels;
+   const GLfloat *srcaddr;
+   GLbyte srcpixels[4][4];
+   GLbyte *blkaddr;
+   GLint dstRowDiff;
+   ASSERT(dstFormat == MESA_FORMAT_SIGNED_RED_RGTC1 ||
+          dstFormat == MESA_FORMAT_SIGNED_L_LATC1);
+   ASSERT(dstXoffset % 4 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset % 4 == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+   tempImage = _mesa_make_temp_float_image(ctx, dims,
+					   baseInternalFormat,
+					   _mesa_get_format_base_format(dstFormat),
+					   srcWidth, srcHeight, srcDepth,
+					   srcFormat, srcType, srcAddr,
+					   srcPacking, 0x0);
+   if (!tempImage)
+      return GL_FALSE; /* out of memory */
+
+   dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+						  dstFormat,
+						  texWidth, (GLubyte *) dstAddr);
+
+   blkaddr = dst;
+   dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
+   for (j = 0; j < srcHeight; j+=4) {
+      if (srcHeight > j + 3) numypixels = 4;
+      else numypixels = srcHeight - j;
+      srcaddr = tempImage + j * srcWidth;
+      for (i = 0; i < srcWidth; i += 4) {
+	 if (srcWidth > i + 3) numxpixels = 4;
+	 else numxpixels = srcWidth - i;
+	 extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+	 srcaddr += numxpixels;
+	 blkaddr += 8;
+      }
+      blkaddr += dstRowDiff;
+   }
+   if (tempImage)
+      free((void *) tempImage);
+
+   return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
+{
+   GLubyte *dst;
+   const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+   const GLchan *tempImage = NULL;
+   int i, j;
+   int numxpixels, numypixels;
+   const GLchan *srcaddr;
+   GLubyte srcpixels[4][4];
+   GLubyte *blkaddr;
+   GLint dstRowDiff;
+
+   ASSERT(dstFormat == MESA_FORMAT_RG_RGTC2 ||
+          dstFormat == MESA_FORMAT_LA_LATC2);
+   ASSERT(dstXoffset % 4 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset % 4 == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+   tempImage = _mesa_make_temp_chan_image(ctx, dims,
+					  baseInternalFormat,
+					  _mesa_get_format_base_format(dstFormat),
+					  srcWidth, srcHeight, srcDepth,
+					  srcFormat, srcType, srcAddr,
+					  srcPacking);
+   if (!tempImage)
+      return GL_FALSE; /* out of memory */
+
+   dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+                                        dstFormat,
+                                        texWidth, (GLubyte *) dstAddr);
+
+   blkaddr = dst;
+   dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+   for (j = 0; j < srcHeight; j+=4) {
+      if (srcHeight > j + 3) numypixels = 4;
+      else numypixels = srcHeight - j;
+      srcaddr = tempImage + j * srcWidth * 2;
+      for (i = 0; i < srcWidth; i += 4) {
+	 if (srcWidth > i + 3) numxpixels = 4;
+	 else numxpixels = srcWidth - i;
+	 extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+
+	 blkaddr += 8;
+	 extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+	 unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+
+	 blkaddr += 8;
+
+	 srcaddr += numxpixels * 2;
+      }
+      blkaddr += dstRowDiff;
+   }
+   if (tempImage)
+      free((void *) tempImage);
+
+   return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
+{
+   GLbyte *dst;
+   const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+   const GLfloat *tempImage = NULL;
+   int i, j;
+   int numxpixels, numypixels;
+   const GLfloat *srcaddr;
+   GLbyte srcpixels[4][4];
+   GLbyte *blkaddr;
+   GLint dstRowDiff;
+
+   ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG_RGTC2 ||
+          dstFormat == MESA_FORMAT_SIGNED_LA_LATC2);
+   ASSERT(dstXoffset % 4 == 0);
+   ASSERT(dstYoffset % 4 == 0);
+   ASSERT(dstZoffset % 4 == 0);
+   (void) dstZoffset;
+   (void) dstImageOffsets;
+
+   tempImage = _mesa_make_temp_float_image(ctx, dims,
+					   baseInternalFormat,
+					   _mesa_get_format_base_format(dstFormat),
+					   srcWidth, srcHeight, srcDepth,
+					   srcFormat, srcType, srcAddr,
+					   srcPacking, 0x0);
+   if (!tempImage)
+      return GL_FALSE; /* out of memory */
+
+   dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+						  dstFormat,
+						  texWidth, (GLubyte *) dstAddr);
+
+   blkaddr = dst;
+   dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+   for (j = 0; j < srcHeight; j += 4) {
+      if (srcHeight > j + 3) numypixels = 4;
+      else numypixels = srcHeight - j;
+      srcaddr = tempImage + j * srcWidth * 2;
+      for (i = 0; i < srcWidth; i += 4) {
+	 if (srcWidth > i + 3) numxpixels = 4;
+	 else numxpixels = srcWidth - i;
+
+	 extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+	 blkaddr += 8;
+
+	 extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+	 signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+	 blkaddr += 8;
+
+	 srcaddr += numxpixels * 2;
+
+      }
+      blkaddr += dstRowDiff;
+   }
+   if (tempImage)
+      free((void *) tempImage);
+
+   return GL_TRUE;
+}
+
+void
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct swrast_texture_image *texImage,
+				 GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte red;
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data),
+		       i, j, &red, 1);
+   texel[RCOMP] = UBYTE_TO_FLOAT(red);
+   texel[GCOMP] = 0.0;
+   texel[BCOMP] = 0.0;
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct swrast_texture_image *texImage,
+					GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLbyte red;
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data),
+		       i, j, &red, 1);
+   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+   texel[GCOMP] = 0.0;
+   texel[BCOMP] = 0.0;
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct swrast_texture_image *texImage,
+				 GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte red, green;
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data),
+		     i, j, &red, 2);
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data) + 8,
+		     i, j, &green, 2);
+   texel[RCOMP] = UBYTE_TO_FLOAT(red);
+   texel[GCOMP] = UBYTE_TO_FLOAT(green);
+   texel[BCOMP] = 0.0;
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct swrast_texture_image *texImage,
+				       GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLbyte red, green;
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data),
+		     i, j, &red, 2);
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data) + 8,
+		     i, j, &green, 2);
+   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+   texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
+   texel[BCOMP] = 0.0;
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_l_latc1(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte red;
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data),
+                       i, j, &red, 1);
+   texel[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = UBYTE_TO_FLOAT(red);
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_l_latc1(const struct swrast_texture_image *texImage,
+                                        GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLbyte red;
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data),
+                       i, j, &red, 1);
+   texel[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+   texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_la_latc2(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte red, green;
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data),
+                     i, j, &red, 2);
+   unsigned_fetch_texel_rgtc(texImage->Base.RowStride, (GLubyte *)(texImage->Base.Data) + 8,
+                     i, j, &green, 2);
+   texel[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = UBYTE_TO_FLOAT(red);
+   texel[ACOMP] = UBYTE_TO_FLOAT(green);
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_la_latc2(const struct swrast_texture_image *texImage,
+                                       GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLbyte red, green;
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data),
+                     i, j, &red, 2);
+   signed_fetch_texel_rgtc(texImage->Base.RowStride, (GLbyte *)(texImage->Base.Data) + 8,
+                     i, j, &green, 2);
+   texel[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+   texel[ACOMP] = BYTE_TO_FLOAT_TEX(green);
+}
+
+#define TAG(x) unsigned_##x
+
+#define TYPE GLubyte
+#define T_MIN 0
+#define T_MAX 0xff
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
+
+#define TAG(x) signed_##x
+#define TYPE GLbyte
+#define T_MIN (GLbyte)-128
+#define T_MAX (GLbyte)127
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.h b/mesalib/src/mesa/main/texcompress_rgtc.h
index 18766770d..6be6ad9be 100644
--- a/mesalib/src/mesa/main/texcompress_rgtc.h
+++ b/mesalib/src/mesa/main/texcompress_rgtc.h
@@ -28,7 +28,7 @@
 #include "mfeatures.h"
 #include "texstore.h"
 
-struct gl_texture_image;
+struct swrast_texture_image;
 
 extern GLboolean
 _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS);
@@ -43,35 +43,35 @@ extern GLboolean
 _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS);
 
 extern void
-_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct swrast_texture_image *texImage,
 				 GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct swrast_texture_image *texImage,
 					GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct swrast_texture_image *texImage,
 				 GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct swrast_texture_image *texImage,
 				       GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_l_latc1(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_signed_l_latc1(const struct swrast_texture_image *texImage,
                                         GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_la_latc2(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_signed_la_latc2(const struct swrast_texture_image *texImage,
                                        GLint i, GLint j, GLint k, GLfloat *texel);
 
 #endif
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.c b/mesalib/src/mesa/main/texcompress_s3tc.c
index 86f962e98..36a56447e 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.c
+++ b/mesalib/src/mesa/main/texcompress_s3tc.c
@@ -44,6 +44,7 @@
 #include "texcompress.h"
 #include "texcompress_s3tc.h"
 #include "texstore.h"
+#include "swrast/s_context.h"
 
 
 #if FEATURE_texture_s3tc
@@ -388,14 +389,14 @@ _mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS)
 
 
 static void
-fetch_texel_2d_rgb_dxt1( const struct gl_texture_image *texImage,
+fetch_texel_2d_rgb_dxt1( const struct swrast_texture_image *texImage,
                          GLint i, GLint j, GLint k, GLchan *texel )
 {
    (void) k;
    if (fetch_ext_rgb_dxt1) {
       ASSERT (sizeof(GLchan) == sizeof(GLubyte));
-      fetch_ext_rgb_dxt1(texImage->RowStride,
-                         (GLubyte *)(texImage)->Data, i, j, texel);
+      fetch_ext_rgb_dxt1(texImage->Base.RowStride,
+                         (GLubyte *)(texImage)->Base.Data, i, j, texel);
    }
    else
       _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgb_dxt1");
@@ -403,7 +404,7 @@ fetch_texel_2d_rgb_dxt1( const struct gl_texture_image *texImage,
 
 
 void
-_mesa_fetch_texel_2d_f_rgb_dxt1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_rgb_dxt1(const struct swrast_texture_image *texImage,
                                 GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -417,13 +418,13 @@ _mesa_fetch_texel_2d_f_rgb_dxt1(const struct gl_texture_image *texImage,
 
 
 static void
-fetch_texel_2d_rgba_dxt1( const struct gl_texture_image *texImage,
+fetch_texel_2d_rgba_dxt1( const struct swrast_texture_image *texImage,
                           GLint i, GLint j, GLint k, GLchan *texel )
 {
    (void) k;
    if (fetch_ext_rgba_dxt1) {
-      fetch_ext_rgba_dxt1(texImage->RowStride,
-                          (GLubyte *)(texImage)->Data, i, j, texel);
+      fetch_ext_rgba_dxt1(texImage->Base.RowStride,
+                          (GLubyte *)(texImage)->Base.Data, i, j, texel);
    }
    else
       _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt1\n");
@@ -431,7 +432,7 @@ fetch_texel_2d_rgba_dxt1( const struct gl_texture_image *texImage,
 
 
 void
-_mesa_fetch_texel_2d_f_rgba_dxt1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_rgba_dxt1(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -445,13 +446,14 @@ _mesa_fetch_texel_2d_f_rgba_dxt1(const struct gl_texture_image *texImage,
 
 
 static void
-fetch_texel_2d_rgba_dxt3( const struct gl_texture_image *texImage,
+fetch_texel_2d_rgba_dxt3( const struct swrast_texture_image *texImage,
                           GLint i, GLint j, GLint k, GLchan *texel )
 {
    (void) k;
    if (fetch_ext_rgba_dxt3) {
       ASSERT (sizeof(GLchan) == sizeof(GLubyte));
-      fetch_ext_rgba_dxt3(texImage->RowStride, (GLubyte *)(texImage)->Data,
+      fetch_ext_rgba_dxt3(texImage->Base.RowStride,
+                          (GLubyte *)(texImage)->Base.Data,
                           i, j, texel);
    }
    else
@@ -460,7 +462,7 @@ fetch_texel_2d_rgba_dxt3( const struct gl_texture_image *texImage,
 
 
 void
-_mesa_fetch_texel_2d_f_rgba_dxt3(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_rgba_dxt3(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -474,12 +476,13 @@ _mesa_fetch_texel_2d_f_rgba_dxt3(const struct gl_texture_image *texImage,
 
 
 static void
-fetch_texel_2d_rgba_dxt5( const struct gl_texture_image *texImage,
+fetch_texel_2d_rgba_dxt5( const struct swrast_texture_image *texImage,
                           GLint i, GLint j, GLint k, GLchan *texel )
 {
    (void) k;
    if (fetch_ext_rgba_dxt5) {
-      fetch_ext_rgba_dxt5(texImage->RowStride, (GLubyte *)(texImage)->Data,
+      fetch_ext_rgba_dxt5(texImage->Base.RowStride,
+                          (GLubyte *)(texImage)->Base.Data,
                           i, j, texel);
    }
    else
@@ -488,7 +491,7 @@ fetch_texel_2d_rgba_dxt5( const struct gl_texture_image *texImage,
 
 
 void
-_mesa_fetch_texel_2d_f_rgba_dxt5(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_rgba_dxt5(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -502,7 +505,7 @@ _mesa_fetch_texel_2d_f_rgba_dxt5(const struct gl_texture_image *texImage,
 
 #if FEATURE_EXT_texture_sRGB
 void
-_mesa_fetch_texel_2d_f_srgb_dxt1( const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_srgb_dxt1( const struct swrast_texture_image *texImage,
                                   GLint i, GLint j, GLint k, GLfloat *texel )
 {
    /* just sample as GLchan and convert to float here */
@@ -515,7 +518,7 @@ _mesa_fetch_texel_2d_f_srgb_dxt1( const struct gl_texture_image *texImage,
 }
 
 void
-_mesa_fetch_texel_2d_f_srgba_dxt1(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_srgba_dxt1(const struct swrast_texture_image *texImage,
                                   GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -528,7 +531,7 @@ _mesa_fetch_texel_2d_f_srgba_dxt1(const struct gl_texture_image *texImage,
 }
 
 void
-_mesa_fetch_texel_2d_f_srgba_dxt3(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_srgba_dxt3(const struct swrast_texture_image *texImage,
                                   GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
@@ -541,7 +544,7 @@ _mesa_fetch_texel_2d_f_srgba_dxt3(const struct gl_texture_image *texImage,
 }
 
 void
-_mesa_fetch_texel_2d_f_srgba_dxt5(const struct gl_texture_image *texImage,
+_mesa_fetch_texel_2d_f_srgba_dxt5(const struct swrast_texture_image *texImage,
                                   GLint i, GLint j, GLint k, GLfloat *texel)
 {
    /* just sample as GLchan and convert to float here */
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.h b/mesalib/src/mesa/main/texcompress_s3tc.h
index 555cff9c2..709c35ae7 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.h
+++ b/mesalib/src/mesa/main/texcompress_s3tc.h
@@ -1,110 +1,110 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef TEXCOMPRESS_S3TC_H
-#define TEXCOMPRESS_S3TC_H
-
-#include "compiler.h"
-#include "glheader.h"
-#include "mfeatures.h"
-#include "texstore.h"
-
-struct gl_context;
-struct gl_texture_image;
-
-#if FEATURE_texture_s3tc
-
-extern GLboolean
-_mesa_texstore_rgb_dxt1(TEXSTORE_PARAMS);
-
-extern GLboolean
-_mesa_texstore_rgba_dxt1(TEXSTORE_PARAMS);
-
-extern GLboolean
-_mesa_texstore_rgba_dxt3(TEXSTORE_PARAMS);
-
-extern GLboolean
-_mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS);
-
-extern void
-_mesa_fetch_texel_2d_f_rgb_dxt1(const struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_rgba_dxt1(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_rgba_dxt3(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_rgba_dxt5(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_srgb_dxt1(const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_srgba_dxt1(const struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_srgba_dxt3(const struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_2d_f_srgba_dxt5(const struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_init_texture_s3tc(struct gl_context *ctx);
-
-#else /* FEATURE_texture_s3tc */
-
-/* these are used only in texstore_funcs[] */
-#define _mesa_texstore_rgb_dxt1 NULL
-#define _mesa_texstore_rgba_dxt1 NULL
-#define _mesa_texstore_rgba_dxt3 NULL
-#define _mesa_texstore_rgba_dxt5 NULL
-
-/* these are used only in texfetch_funcs[] */
-#define _mesa_fetch_texel_2d_f_rgb_dxt1 NULL
-#define _mesa_fetch_texel_2d_f_rgba_dxt1 NULL
-#define _mesa_fetch_texel_2d_f_rgba_dxt3 NULL
-#define _mesa_fetch_texel_2d_f_rgba_dxt5 NULL
-#define _mesa_fetch_texel_2d_f_srgb_dxt1 NULL
-#define _mesa_fetch_texel_2d_f_srgba_dxt1 NULL
-#define _mesa_fetch_texel_2d_f_srgba_dxt3 NULL
-#define _mesa_fetch_texel_2d_f_srgba_dxt5 NULL
-
-static INLINE void
-_mesa_init_texture_s3tc(struct gl_context *ctx)
-{
-}
-
-#endif /* FEATURE_texture_s3tc */
-
-#endif /* TEXCOMPRESS_S3TC_H */
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TEXCOMPRESS_S3TC_H
+#define TEXCOMPRESS_S3TC_H
+
+#include "compiler.h"
+#include "glheader.h"
+#include "mfeatures.h"
+#include "texstore.h"
+
+struct gl_context;
+struct swrast_texture_image;
+
+#if FEATURE_texture_s3tc
+
+extern GLboolean
+_mesa_texstore_rgb_dxt1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rgba_dxt1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rgba_dxt3(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS);
+
+extern void
+_mesa_fetch_texel_2d_f_rgb_dxt1(const struct swrast_texture_image *texImage,
+                                GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rgba_dxt1(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rgba_dxt3(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rgba_dxt5(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_srgb_dxt1(const struct swrast_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_srgba_dxt1(const struct swrast_texture_image *texImage,
+                                  GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_srgba_dxt3(const struct swrast_texture_image *texImage,
+                                  GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_srgba_dxt5(const struct swrast_texture_image *texImage,
+                                  GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_init_texture_s3tc(struct gl_context *ctx);
+
+#else /* FEATURE_texture_s3tc */
+
+/* these are used only in texstore_funcs[] */
+#define _mesa_texstore_rgb_dxt1 NULL
+#define _mesa_texstore_rgba_dxt1 NULL
+#define _mesa_texstore_rgba_dxt3 NULL
+#define _mesa_texstore_rgba_dxt5 NULL
+
+/* these are used only in texfetch_funcs[] */
+#define _mesa_fetch_texel_2d_f_rgb_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt3 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt5 NULL
+#define _mesa_fetch_texel_2d_f_srgb_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt3 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt5 NULL
+
+static INLINE void
+_mesa_init_texture_s3tc(struct gl_context *ctx)
+{
+}
+
+#endif /* FEATURE_texture_s3tc */
+
+#endif /* TEXCOMPRESS_S3TC_H */
diff --git a/mesalib/src/mesa/main/texfetch.c b/mesalib/src/mesa/main/texfetch.c
deleted file mode 100644
index 11cc8e047..000000000
--- a/mesalib/src/mesa/main/texfetch.c
+++ /dev/null
@@ -1,1057 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.7
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (c) 2009  VMware, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file texfetch.c
- *
- * Texel fetch/store functions
- *
- * \author Gareth Hughes
- */
-
-
-#include "colormac.h"
-#include "macros.h"
-#include "texcompress.h"
-#include "texcompress_fxt1.h"
-#include "texcompress_s3tc.h"
-#include "texcompress_rgtc.h"
-#include "texfetch.h"
-#include "teximage.h"
-#include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
-#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
-
-
-/**
- * Convert an 8-bit sRGB value from non-linear space to a
- * linear RGB value in [0, 1].
- * Implemented with a 256-entry lookup table.
- */
-static INLINE GLfloat
-nonlinear_to_linear(GLubyte cs8)
-{
-   static GLfloat table[256];
-   static GLboolean tableReady = GL_FALSE;
-   if (!tableReady) {
-      /* compute lookup table now */
-      GLuint i;
-      for (i = 0; i < 256; i++) {
-         const GLfloat cs = UBYTE_TO_FLOAT(i);
-         if (cs <= 0.04045) {
-            table[i] = cs / 12.92f;
-         }
-         else {
-            table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4);
-         }
-      }
-      tableReady = GL_TRUE;
-   }
-   return table[cs8];
-}
-
-
-
-/* Texel fetch routines for all supported formats
- */
-#define DIM 1
-#include "texfetch_tmp.h"
-
-#define DIM 2
-#include "texfetch_tmp.h"
-
-#define DIM 3
-#include "texfetch_tmp.h"
-
-/**
- * Null texel fetch function.
- *
- * Have to have this so the FetchTexel function pointer is never NULL.
- */
-static void fetch_null_texelf( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   (void) texImage; (void) i; (void) j; (void) k;
-   texel[RCOMP] = 0.0;
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 0.0;
-   _mesa_warning(NULL, "fetch_null_texelf() called!");
-}
-
-static void store_null_texel(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   (void) texImage;
-   (void) i;
-   (void) j;
-   (void) k;
-   (void) texel;
-   /* no-op */
-}
-
-
-
-/**
- * Table to map MESA_FORMAT_ to texel fetch/store funcs.
- * XXX this is somewhat temporary.
- */
-static struct {
-   gl_format Name;
-   FetchTexelFuncF Fetch1D;
-   FetchTexelFuncF Fetch2D;
-   FetchTexelFuncF Fetch3D;
-   StoreTexelFunc StoreTexel;
-}
-texfetch_funcs[MESA_FORMAT_COUNT] =
-{
-   {
-      MESA_FORMAT_NONE,
-      fetch_null_texelf,
-      fetch_null_texelf,
-      fetch_null_texelf,
-      store_null_texel
-   },
-
-   {
-      MESA_FORMAT_RGBA8888,
-      fetch_texel_1d_f_rgba8888,
-      fetch_texel_2d_f_rgba8888,
-      fetch_texel_3d_f_rgba8888,
-      store_texel_rgba8888
-   },
-   {
-      MESA_FORMAT_RGBA8888_REV,
-      fetch_texel_1d_f_rgba8888_rev,
-      fetch_texel_2d_f_rgba8888_rev,
-      fetch_texel_3d_f_rgba8888_rev,
-      store_texel_rgba8888_rev
-   },
-   {
-      MESA_FORMAT_ARGB8888,
-      fetch_texel_1d_f_argb8888,
-      fetch_texel_2d_f_argb8888,
-      fetch_texel_3d_f_argb8888,
-      store_texel_argb8888
-   },
-   {
-      MESA_FORMAT_ARGB8888_REV,
-      fetch_texel_1d_f_argb8888_rev,
-      fetch_texel_2d_f_argb8888_rev,
-      fetch_texel_3d_f_argb8888_rev,
-      store_texel_argb8888_rev
-   },
-   {
-      MESA_FORMAT_XRGB8888,
-      fetch_texel_1d_f_xrgb8888,
-      fetch_texel_2d_f_xrgb8888,
-      fetch_texel_3d_f_xrgb8888,
-      store_texel_xrgb8888
-   },
-   {
-      MESA_FORMAT_XRGB8888_REV,
-      fetch_texel_1d_f_xrgb8888_rev,
-      fetch_texel_2d_f_xrgb8888_rev,
-      fetch_texel_3d_f_xrgb8888_rev,
-      store_texel_xrgb8888_rev,
-   },
-   {
-      MESA_FORMAT_RGB888,
-      fetch_texel_1d_f_rgb888,
-      fetch_texel_2d_f_rgb888,
-      fetch_texel_3d_f_rgb888,
-      store_texel_rgb888
-   },
-   {
-      MESA_FORMAT_BGR888,
-      fetch_texel_1d_f_bgr888,
-      fetch_texel_2d_f_bgr888,
-      fetch_texel_3d_f_bgr888,
-      store_texel_bgr888
-   },
-   {
-      MESA_FORMAT_RGB565,
-      fetch_texel_1d_f_rgb565,
-      fetch_texel_2d_f_rgb565,
-      fetch_texel_3d_f_rgb565,
-      store_texel_rgb565
-   },
-   {
-      MESA_FORMAT_RGB565_REV,
-      fetch_texel_1d_f_rgb565_rev,
-      fetch_texel_2d_f_rgb565_rev,
-      fetch_texel_3d_f_rgb565_rev,
-      store_texel_rgb565_rev
-   },
-   {
-      MESA_FORMAT_ARGB4444,
-      fetch_texel_1d_f_argb4444,
-      fetch_texel_2d_f_argb4444,
-      fetch_texel_3d_f_argb4444,
-      store_texel_argb4444
-   },
-   {
-      MESA_FORMAT_ARGB4444_REV,
-      fetch_texel_1d_f_argb4444_rev,
-      fetch_texel_2d_f_argb4444_rev,
-      fetch_texel_3d_f_argb4444_rev,
-      store_texel_argb4444_rev
-   },
-   {
-      MESA_FORMAT_RGBA5551,
-      fetch_texel_1d_f_rgba5551,
-      fetch_texel_2d_f_rgba5551,
-      fetch_texel_3d_f_rgba5551,
-      store_texel_rgba5551
-   },
-   {
-      MESA_FORMAT_ARGB1555,
-      fetch_texel_1d_f_argb1555,
-      fetch_texel_2d_f_argb1555,
-      fetch_texel_3d_f_argb1555,
-      store_texel_argb1555
-   },
-   {
-      MESA_FORMAT_ARGB1555_REV,
-      fetch_texel_1d_f_argb1555_rev,
-      fetch_texel_2d_f_argb1555_rev,
-      fetch_texel_3d_f_argb1555_rev,
-      store_texel_argb1555_rev
-   },
-   {
-      MESA_FORMAT_AL44,
-      fetch_texel_1d_f_al44,
-      fetch_texel_2d_f_al44,
-      fetch_texel_3d_f_al44,
-      store_texel_al44
-   },
-   {
-      MESA_FORMAT_AL88,
-      fetch_texel_1d_f_al88,
-      fetch_texel_2d_f_al88,
-      fetch_texel_3d_f_al88,
-      store_texel_al88
-   },
-   {
-      MESA_FORMAT_AL88_REV,
-      fetch_texel_1d_f_al88_rev,
-      fetch_texel_2d_f_al88_rev,
-      fetch_texel_3d_f_al88_rev,
-      store_texel_al88_rev
-   },
-   {
-      MESA_FORMAT_AL1616,
-      fetch_texel_1d_f_al1616,
-      fetch_texel_2d_f_al1616,
-      fetch_texel_3d_f_al1616,
-      store_texel_al1616
-   },
-   {
-      MESA_FORMAT_AL1616_REV,
-      fetch_texel_1d_f_al1616_rev,
-      fetch_texel_2d_f_al1616_rev,
-      fetch_texel_3d_f_al1616_rev,
-      store_texel_al1616_rev
-   },
-   {
-      MESA_FORMAT_RGB332,
-      fetch_texel_1d_f_rgb332,
-      fetch_texel_2d_f_rgb332,
-      fetch_texel_3d_f_rgb332,
-      store_texel_rgb332
-   },
-   {
-      MESA_FORMAT_A8,
-      fetch_texel_1d_f_a8,
-      fetch_texel_2d_f_a8,
-      fetch_texel_3d_f_a8,
-      store_texel_a8
-   },
-   {
-      MESA_FORMAT_A16,
-      fetch_texel_1d_f_a16,
-      fetch_texel_2d_f_a16,
-      fetch_texel_3d_f_a16,
-      store_texel_a16
-   },
-   {
-      MESA_FORMAT_L8,
-      fetch_texel_1d_f_l8,
-      fetch_texel_2d_f_l8,
-      fetch_texel_3d_f_l8,
-      store_texel_l8
-   },
-   {
-      MESA_FORMAT_L16,
-      fetch_texel_1d_f_l16,
-      fetch_texel_2d_f_l16,
-      fetch_texel_3d_f_l16,
-      store_texel_l16
-   },
-   {
-      MESA_FORMAT_I8,
-      fetch_texel_1d_f_i8,
-      fetch_texel_2d_f_i8,
-      fetch_texel_3d_f_i8,
-      store_texel_i8
-   },
-   {
-      MESA_FORMAT_I16,
-      fetch_texel_1d_f_i16,
-      fetch_texel_2d_f_i16,
-      fetch_texel_3d_f_i16,
-      store_texel_i16
-   },
-   {
-      MESA_FORMAT_YCBCR,
-      fetch_texel_1d_f_ycbcr,
-      fetch_texel_2d_f_ycbcr,
-      fetch_texel_3d_f_ycbcr,
-      store_texel_ycbcr
-   },
-   {
-      MESA_FORMAT_YCBCR_REV,
-      fetch_texel_1d_f_ycbcr_rev,
-      fetch_texel_2d_f_ycbcr_rev,
-      fetch_texel_3d_f_ycbcr_rev,
-      store_texel_ycbcr_rev
-   },
-   {
-      MESA_FORMAT_R8,
-      fetch_texel_1d_f_r8,
-      fetch_texel_2d_f_r8,
-      fetch_texel_3d_f_r8,
-      store_texel_r8,
-   },
-   {
-      MESA_FORMAT_RG88,
-      fetch_texel_1d_f_rg88,
-      fetch_texel_2d_f_rg88,
-      fetch_texel_3d_f_rg88,
-      store_texel_rg88,
-   },
-   {
-      MESA_FORMAT_RG88_REV,
-      fetch_texel_1d_f_rg88_rev,
-      fetch_texel_2d_f_rg88_rev,
-      fetch_texel_3d_f_rg88_rev,
-      store_texel_rg88_rev,
-   },
-   {
-      MESA_FORMAT_R16,
-      fetch_texel_1d_f_r16,
-      fetch_texel_2d_f_r16,
-      fetch_texel_3d_f_r16,
-      store_texel_r16,
-   },
-   {
-      MESA_FORMAT_RG1616,
-      fetch_texel_1d_f_rg1616,
-      fetch_texel_2d_f_rg1616,
-      fetch_texel_3d_f_rg1616,
-      store_texel_rg1616,
-   },
-   {
-      MESA_FORMAT_RG1616_REV,
-      fetch_texel_1d_f_rg1616_rev,
-      fetch_texel_2d_f_rg1616_rev,
-      fetch_texel_3d_f_rg1616_rev,
-      store_texel_rg1616_rev,
-   },
-   {
-      MESA_FORMAT_ARGB2101010,
-      fetch_texel_1d_f_argb2101010,
-      fetch_texel_2d_f_argb2101010,
-      fetch_texel_3d_f_argb2101010,
-      store_texel_argb2101010
-   },
-   {
-      MESA_FORMAT_Z24_S8,
-      fetch_texel_1d_f_z24_s8,
-      fetch_texel_2d_f_z24_s8,
-      fetch_texel_3d_f_z24_s8,
-      store_texel_z24_s8
-   },
-   {
-      MESA_FORMAT_S8_Z24,
-      fetch_texel_1d_f_s8_z24,
-      fetch_texel_2d_f_s8_z24,
-      fetch_texel_3d_f_s8_z24,
-      store_texel_s8_z24
-   },
-   {
-      MESA_FORMAT_Z16,
-      fetch_texel_1d_f_z16,
-      fetch_texel_2d_f_z16,
-      fetch_texel_3d_f_z16,
-      store_texel_z16
-   },
-   {
-      MESA_FORMAT_X8_Z24,
-      fetch_texel_1d_f_s8_z24,
-      fetch_texel_2d_f_s8_z24,
-      fetch_texel_3d_f_s8_z24,
-      store_texel_s8_z24
-   },
-   {
-      MESA_FORMAT_Z24_X8,
-      fetch_texel_1d_f_z24_s8,
-      fetch_texel_2d_f_z24_s8,
-      fetch_texel_3d_f_z24_s8,
-      store_texel_z24_s8
-   },
-   {
-      MESA_FORMAT_Z32,
-      fetch_texel_1d_f_z32,
-      fetch_texel_2d_f_z32,
-      fetch_texel_3d_f_z32,
-      store_texel_z32
-   },
-   {
-      MESA_FORMAT_S8,
-      NULL,
-      NULL,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SRGB8,
-      fetch_texel_1d_srgb8,
-      fetch_texel_2d_srgb8,
-      fetch_texel_3d_srgb8,
-      store_texel_srgb8
-   },
-   {
-      MESA_FORMAT_SRGBA8,
-      fetch_texel_1d_srgba8,
-      fetch_texel_2d_srgba8,
-      fetch_texel_3d_srgba8,
-      store_texel_srgba8
-   },
-   {
-      MESA_FORMAT_SARGB8,
-      fetch_texel_1d_sargb8,
-      fetch_texel_2d_sargb8,
-      fetch_texel_3d_sargb8,
-      store_texel_sargb8
-   },
-   {
-      MESA_FORMAT_SL8,
-      fetch_texel_1d_sl8,
-      fetch_texel_2d_sl8,
-      fetch_texel_3d_sl8,
-      store_texel_sl8
-   },
-   {
-      MESA_FORMAT_SLA8,
-      fetch_texel_1d_sla8,
-      fetch_texel_2d_sla8,
-      fetch_texel_3d_sla8,
-      store_texel_sla8
-   },
-   {
-      MESA_FORMAT_SRGB_DXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_srgb_dxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SRGBA_DXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_srgba_dxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SRGBA_DXT3,
-      NULL,
-      _mesa_fetch_texel_2d_f_srgba_dxt3,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SRGBA_DXT5,
-      NULL,
-      _mesa_fetch_texel_2d_f_srgba_dxt5,
-      NULL,
-      NULL
-   },
-
-   {
-      MESA_FORMAT_RGB_FXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgb_fxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGBA_FXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgba_fxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGB_DXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgb_dxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGBA_DXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgba_dxt1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGBA_DXT3,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgba_dxt3,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGBA_DXT5,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgba_dxt5,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RGBA_FLOAT32,
-      fetch_texel_1d_f_rgba_f32,
-      fetch_texel_2d_f_rgba_f32,
-      fetch_texel_3d_f_rgba_f32,
-      store_texel_rgba_f32
-   },
-   {
-      MESA_FORMAT_RGBA_FLOAT16,
-      fetch_texel_1d_f_rgba_f16,
-      fetch_texel_2d_f_rgba_f16,
-      fetch_texel_3d_f_rgba_f16,
-      store_texel_rgba_f16
-   },
-   {
-      MESA_FORMAT_RGB_FLOAT32,
-      fetch_texel_1d_f_rgb_f32,
-      fetch_texel_2d_f_rgb_f32,
-      fetch_texel_3d_f_rgb_f32,
-      store_texel_rgb_f32
-   },
-   {
-      MESA_FORMAT_RGB_FLOAT16,
-      fetch_texel_1d_f_rgb_f16,
-      fetch_texel_2d_f_rgb_f16,
-      fetch_texel_3d_f_rgb_f16,
-      store_texel_rgb_f16
-   },
-   {
-      MESA_FORMAT_ALPHA_FLOAT32,
-      fetch_texel_1d_f_alpha_f32,
-      fetch_texel_2d_f_alpha_f32,
-      fetch_texel_3d_f_alpha_f32,
-      store_texel_alpha_f32
-   },
-   {
-      MESA_FORMAT_ALPHA_FLOAT16,
-      fetch_texel_1d_f_alpha_f16,
-      fetch_texel_2d_f_alpha_f16,
-      fetch_texel_3d_f_alpha_f16,
-      store_texel_alpha_f16
-   },
-   {
-      MESA_FORMAT_LUMINANCE_FLOAT32,
-      fetch_texel_1d_f_luminance_f32,
-      fetch_texel_2d_f_luminance_f32,
-      fetch_texel_3d_f_luminance_f32,
-      store_texel_luminance_f32
-   },
-   {
-      MESA_FORMAT_LUMINANCE_FLOAT16,
-      fetch_texel_1d_f_luminance_f16,
-      fetch_texel_2d_f_luminance_f16,
-      fetch_texel_3d_f_luminance_f16,
-      store_texel_luminance_f16
-   },
-   {
-      MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
-      fetch_texel_1d_f_luminance_alpha_f32,
-      fetch_texel_2d_f_luminance_alpha_f32,
-      fetch_texel_3d_f_luminance_alpha_f32,
-      store_texel_luminance_alpha_f32
-   },
-   {
-      MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
-      fetch_texel_1d_f_luminance_alpha_f16,
-      fetch_texel_2d_f_luminance_alpha_f16,
-      fetch_texel_3d_f_luminance_alpha_f16,
-      store_texel_luminance_alpha_f16
-   },
-   {
-      MESA_FORMAT_INTENSITY_FLOAT32,
-      fetch_texel_1d_f_intensity_f32,
-      fetch_texel_2d_f_intensity_f32,
-      fetch_texel_3d_f_intensity_f32,
-      store_texel_intensity_f32
-   },
-   {
-      MESA_FORMAT_INTENSITY_FLOAT16,
-      fetch_texel_1d_f_intensity_f16,
-      fetch_texel_2d_f_intensity_f16,
-      fetch_texel_3d_f_intensity_f16,
-      store_texel_intensity_f16
-   },
-   {
-      MESA_FORMAT_R_FLOAT32,
-      fetch_texel_1d_f_r_f32,
-      fetch_texel_2d_f_r_f32,
-      fetch_texel_3d_f_r_f32,
-      store_texel_r_f32
-   },
-   {
-      MESA_FORMAT_R_FLOAT16,
-      fetch_texel_1d_f_r_f16,
-      fetch_texel_2d_f_r_f16,
-      fetch_texel_3d_f_r_f16,
-      store_texel_r_f16
-   },
-   {
-      MESA_FORMAT_RG_FLOAT32,
-      fetch_texel_1d_f_rg_f32,
-      fetch_texel_2d_f_rg_f32,
-      fetch_texel_3d_f_rg_f32,
-      store_texel_rg_f32
-   },
-   {
-      MESA_FORMAT_RG_FLOAT16,
-      fetch_texel_1d_f_rg_f16,
-      fetch_texel_2d_f_rg_f16,
-      fetch_texel_3d_f_rg_f16,
-      store_texel_rg_f16
-   },
-
-   /* non-normalized, signed int */
-   {
-      MESA_FORMAT_RGBA_INT8,
-      fetch_texel_1d_rgba_int8,
-      fetch_texel_2d_rgba_int8,
-      fetch_texel_3d_rgba_int8,
-      store_texel_rgba_int8
-   },
-   {
-      MESA_FORMAT_RGBA_INT16,
-      fetch_texel_1d_rgba_int16,
-      fetch_texel_2d_rgba_int16,
-      fetch_texel_3d_rgba_int16,
-      store_texel_rgba_int16
-   },
-   {
-      MESA_FORMAT_RGBA_INT32,
-      fetch_texel_1d_rgba_int32,
-      fetch_texel_2d_rgba_int32,
-      fetch_texel_3d_rgba_int32,
-      store_texel_rgba_int32
-   },
-
-   /* non-normalized, unsigned int */
-   {
-      MESA_FORMAT_RGBA_UINT8,
-      fetch_texel_1d_rgba_uint8,
-      fetch_texel_2d_rgba_uint8,
-      fetch_texel_3d_rgba_uint8,
-      store_texel_rgba_uint8
-   },
-   {
-      MESA_FORMAT_RGBA_UINT16,
-      fetch_texel_1d_rgba_uint16,
-      fetch_texel_2d_rgba_uint16,
-      fetch_texel_3d_rgba_uint16,
-      store_texel_rgba_uint16
-   },
-   {
-      MESA_FORMAT_RGBA_UINT32,
-      fetch_texel_1d_rgba_uint32,
-      fetch_texel_2d_rgba_uint32,
-      fetch_texel_3d_rgba_uint32,
-      store_texel_rgba_uint32
-   },
-
-   /* dudv */
-   {
-      MESA_FORMAT_DUDV8,
-      fetch_texel_1d_dudv8,
-      fetch_texel_2d_dudv8,
-      fetch_texel_3d_dudv8,
-      NULL
-   },
-
-   /* signed, normalized */
-   {
-      MESA_FORMAT_SIGNED_R8,
-      fetch_texel_1d_signed_r8,
-      fetch_texel_2d_signed_r8,
-      fetch_texel_3d_signed_r8,
-      store_texel_signed_r8
-   },
-   {
-      MESA_FORMAT_SIGNED_RG88_REV,
-      fetch_texel_1d_signed_rg88_rev,
-      fetch_texel_2d_signed_rg88_rev,
-      fetch_texel_3d_signed_rg88_rev,
-      store_texel_signed_rg88_rev
-   },
-   {
-      MESA_FORMAT_SIGNED_RGBX8888,
-      fetch_texel_1d_signed_rgbx8888,
-      fetch_texel_2d_signed_rgbx8888,
-      fetch_texel_3d_signed_rgbx8888,
-      store_texel_signed_rgbx8888
-   },
-   {
-      MESA_FORMAT_SIGNED_RGBA8888,
-      fetch_texel_1d_signed_rgba8888,
-      fetch_texel_2d_signed_rgba8888,
-      fetch_texel_3d_signed_rgba8888,
-      store_texel_signed_rgba8888
-   },
-   {
-      MESA_FORMAT_SIGNED_RGBA8888_REV,
-      fetch_texel_1d_signed_rgba8888_rev,
-      fetch_texel_2d_signed_rgba8888_rev,
-      fetch_texel_3d_signed_rgba8888_rev,
-      store_texel_signed_rgba8888_rev
-   },
-   {
-      MESA_FORMAT_SIGNED_R16,
-      fetch_texel_1d_signed_r16,
-      fetch_texel_2d_signed_r16,
-      fetch_texel_3d_signed_r16,
-      store_texel_signed_r16
-   },
-   {
-      MESA_FORMAT_SIGNED_GR1616,
-      fetch_texel_1d_signed_rg1616,
-      fetch_texel_2d_signed_rg1616,
-      fetch_texel_3d_signed_rg1616,
-      store_texel_signed_rg1616
-   },
-   {
-      MESA_FORMAT_SIGNED_RGB_16,
-      fetch_texel_1d_signed_rgb_16,
-      fetch_texel_2d_signed_rgb_16,
-      fetch_texel_3d_signed_rgb_16,
-      store_texel_signed_rgb_16
-   },
-   {
-      MESA_FORMAT_SIGNED_RGBA_16,
-      fetch_texel_1d_signed_rgba_16,
-      fetch_texel_2d_signed_rgba_16,
-      fetch_texel_3d_signed_rgba_16,
-      store_texel_signed_rgba_16
-   },
-   {
-      MESA_FORMAT_RGBA_16,
-      fetch_texel_1d_rgba_16,
-      fetch_texel_2d_rgba_16,
-      fetch_texel_3d_rgba_16,
-      store_texel_rgba_16
-   },
-   {
-      MESA_FORMAT_RED_RGTC1,
-      NULL,
-      _mesa_fetch_texel_2d_f_red_rgtc1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SIGNED_RED_RGTC1,
-      NULL,
-      _mesa_fetch_texel_2d_f_signed_red_rgtc1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_RG_RGTC2,
-      NULL,
-      _mesa_fetch_texel_2d_f_rg_rgtc2,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SIGNED_RG_RGTC2,
-      NULL,
-      _mesa_fetch_texel_2d_f_signed_rg_rgtc2,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_L_LATC1,
-      NULL,
-      _mesa_fetch_texel_2d_f_l_latc1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SIGNED_L_LATC1,
-      NULL,
-      _mesa_fetch_texel_2d_f_signed_l_latc1,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_LA_LATC2,
-      NULL,
-      _mesa_fetch_texel_2d_f_la_latc2,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SIGNED_LA_LATC2,
-      NULL,
-      _mesa_fetch_texel_2d_f_signed_la_latc2,
-      NULL,
-      NULL
-   },
-   {
-      MESA_FORMAT_SIGNED_A8,
-      fetch_texel_1d_signed_a8,
-      fetch_texel_2d_signed_a8,
-      fetch_texel_3d_signed_a8,
-      store_texel_signed_a8
-   },
-   {
-      MESA_FORMAT_SIGNED_L8,
-      fetch_texel_1d_signed_l8,
-      fetch_texel_2d_signed_l8,
-      fetch_texel_3d_signed_l8,
-      store_texel_signed_l8
-   },
-   {
-      MESA_FORMAT_SIGNED_AL88,
-      fetch_texel_1d_signed_al88,
-      fetch_texel_2d_signed_al88,
-      fetch_texel_3d_signed_al88,
-      store_texel_signed_al88
-   },
-   {
-      MESA_FORMAT_SIGNED_I8,
-      fetch_texel_1d_signed_i8,
-      fetch_texel_2d_signed_i8,
-      fetch_texel_3d_signed_i8,
-      store_texel_signed_i8
-   },
-   {
-      MESA_FORMAT_SIGNED_A16,
-      fetch_texel_1d_signed_a16,
-      fetch_texel_2d_signed_a16,
-      fetch_texel_3d_signed_a16,
-      store_texel_signed_a16
-   },
-   {
-      MESA_FORMAT_SIGNED_L16,
-      fetch_texel_1d_signed_l16,
-      fetch_texel_2d_signed_l16,
-      fetch_texel_3d_signed_l16,
-      store_texel_signed_l16
-   },
-   {
-      MESA_FORMAT_SIGNED_AL1616,
-      fetch_texel_1d_signed_al1616,
-      fetch_texel_2d_signed_al1616,
-      fetch_texel_3d_signed_al1616,
-      store_texel_signed_al1616
-   },
-   {
-      MESA_FORMAT_SIGNED_I16,
-      fetch_texel_1d_signed_i16,
-      fetch_texel_2d_signed_i16,
-      fetch_texel_3d_signed_i16,
-      store_texel_signed_i16
-   },
-   {
-      MESA_FORMAT_RGB9_E5_FLOAT,
-      fetch_texel_1d_rgb9_e5,
-      fetch_texel_2d_rgb9_e5,
-      fetch_texel_3d_rgb9_e5,
-      store_texel_rgb9_e5
-   },
-   {
-      MESA_FORMAT_R11_G11_B10_FLOAT,
-      fetch_texel_1d_r11_g11_b10f,
-      fetch_texel_2d_r11_g11_b10f,
-      fetch_texel_3d_r11_g11_b10f,
-      store_texel_r11_g11_b10f
-   },
-   {
-      MESA_FORMAT_Z32_FLOAT,
-      fetch_texel_1d_f_r_f32, /* Reuse the R32F functions. */
-      fetch_texel_2d_f_r_f32,
-      fetch_texel_3d_f_r_f32,
-      store_texel_r_f32
-   },
-   {
-      MESA_FORMAT_Z32_FLOAT_X24S8,
-      fetch_texel_1d_z32f_x24s8,
-      fetch_texel_2d_z32f_x24s8,
-      fetch_texel_3d_z32f_x24s8,
-      store_texel_z32f_x24s8
-   }
-};
-
-
-FetchTexelFuncF
-_mesa_get_texel_fetch_func(gl_format format, GLuint dims)
-{
-#ifdef DEBUG
-   /* check that the table entries are sorted by format name */
-   gl_format fmt;
-   for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) {
-      assert(texfetch_funcs[fmt].Name == fmt);
-   }
-#endif
-
-   assert(Elements(texfetch_funcs) == MESA_FORMAT_COUNT);
-   assert(format < MESA_FORMAT_COUNT);
-
-   switch (dims) {
-   case 1:
-      return texfetch_funcs[format].Fetch1D;
-   case 2:
-      return texfetch_funcs[format].Fetch2D;
-   case 3:
-      return texfetch_funcs[format].Fetch3D;
-   default:
-      assert(0 && "bad dims in _mesa_get_texel_fetch_func");
-      return NULL;
-   }
-}
-
-
-StoreTexelFunc
-_mesa_get_texel_store_func(gl_format format)
-{
-   assert(format < MESA_FORMAT_COUNT);
-   return texfetch_funcs[format].StoreTexel;
-}
-
-
-/**
- * Adaptor for fetching a GLchan texel from a float-valued texture.
- */
-static void
-fetch_texel_float_to_chan(const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLchan *texelOut)
-{
-   GLfloat temp[4];
-   GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
-
-   ASSERT(texImage->FetchTexelf);
-   texImage->FetchTexelf(texImage, i, j, k, temp);
-   if (baseFormat == GL_DEPTH_COMPONENT ||
-       baseFormat == GL_DEPTH_STENCIL_EXT) {
-      /* just one channel */
-      UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
-   }
-   else {
-      /* four channels */
-      UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
-      UNCLAMPED_FLOAT_TO_CHAN(texelOut[1], temp[1]);
-      UNCLAMPED_FLOAT_TO_CHAN(texelOut[2], temp[2]);
-      UNCLAMPED_FLOAT_TO_CHAN(texelOut[3], temp[3]);
-   }
-}
-
-
-#if 0
-/**
- * Adaptor for fetching a float texel from a GLchan-valued texture.
- */
-static void
-fetch_texel_chan_to_float(const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texelOut)
-{
-   GLchan temp[4];
-   GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
-
-   ASSERT(texImage->FetchTexelc);
-   texImage->FetchTexelc(texImage, i, j, k, temp);
-   if (baseFormat == GL_DEPTH_COMPONENT ||
-       baseFormat == GL_DEPTH_STENCIL_EXT) {
-      /* just one channel */
-      texelOut[0] = CHAN_TO_FLOAT(temp[0]);
-   }
-   else {
-      /* four channels */
-      texelOut[0] = CHAN_TO_FLOAT(temp[0]);
-      texelOut[1] = CHAN_TO_FLOAT(temp[1]);
-      texelOut[2] = CHAN_TO_FLOAT(temp[2]);
-      texelOut[3] = CHAN_TO_FLOAT(temp[3]);
-   }
-}
-#endif
-
-
-/**
- * Initialize the texture image's FetchTexelc and FetchTexelf methods.
- */
-void
-_mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims)
-{
-   gl_format format = texImage->TexFormat;
-
-   ASSERT(dims == 1 || dims == 2 || dims == 3);
-
-   if (texImage->TexObject->Sampler.sRGBDecode == GL_SKIP_DECODE_EXT &&
-       _mesa_get_format_color_encoding(format) == GL_SRGB) {
-      format = _mesa_get_srgb_format_linear(format);
-   }
-
-   texImage->FetchTexelf = _mesa_get_texel_fetch_func(format, dims);
-
-   texImage->FetchTexelc = fetch_texel_float_to_chan;
-
-   ASSERT(texImage->FetchTexelc);
-   ASSERT(texImage->FetchTexelf);
-}
-
-void
-_mesa_update_fetch_functions(struct gl_texture_object *texObj)
-{
-   GLuint face, i;
-   GLuint dims;
-
-   dims = _mesa_get_texture_dimensions(texObj->Target);
-
-   for (face = 0; face < 6; face++) {
-      for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
-         if (texObj->Image[face][i]) {
-	    _mesa_set_fetch_functions(texObj->Image[face][i], dims);
-         }
-      }
-   }
-}
diff --git a/mesalib/src/mesa/main/texfetch.h b/mesalib/src/mesa/main/texfetch.h
deleted file mode 100644
index dad19cee1..000000000
--- a/mesalib/src/mesa/main/texfetch.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.7
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#ifndef TEXFETCH_H
-#define TEXFETCH_H
-
-#include "mtypes.h"
-#include "formats.h"
-
-
-extern StoreTexelFunc
-_mesa_get_texel_store_func(gl_format format);
-
-extern FetchTexelFuncF
-_mesa_get_texel_fetch_func(gl_format format, GLuint dims);
-
-extern void
-_mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims);
-
-void
-_mesa_update_fetch_functions(struct gl_texture_object *texObj);
-#endif
diff --git a/mesalib/src/mesa/main/texfetch_tmp.h b/mesalib/src/mesa/main/texfetch_tmp.h
deleted file mode 100644
index dbed3dba9..000000000
--- a/mesalib/src/mesa/main/texfetch_tmp.h
+++ /dev/null
@@ -1,2341 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.7
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (c) 2008-2009  VMware, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file texfetch_tmp.h
- * Texel fetch functions template.
- * 
- * This template file is used by texfetch.c to generate texel fetch functions
- * for 1-D, 2-D and 3-D texture images. 
- *
- * It should be expanded by defining \p DIM as the number texture dimensions
- * (1, 2 or 3).  According to the value of \p DIM a series of macros is defined
- * for the texel lookup in the gl_texture_image::Data.
- * 
- * \author Gareth Hughes
- * \author Brian Paul
- */
-
-
-#if DIM == 1
-
-#define TEXEL_ADDR( type, image, i, j, k, size ) \
-	((void) (j), (void) (k), ((type *)(image)->Data + (i) * (size)))
-
-#define FETCH(x) fetch_texel_1d_##x
-
-#elif DIM == 2
-
-#define TEXEL_ADDR( type, image, i, j, k, size )			\
-	((void) (k),							\
-	 ((type *)(image)->Data + ((image)->RowStride * (j) + (i)) * (size)))
-
-#define FETCH(x) fetch_texel_2d_##x
-
-#elif DIM == 3
-
-#define TEXEL_ADDR( type, image, i, j, k, size )			\
-	((type *)(image)->Data + ((image)->ImageOffsets[k]		\
-             + (image)->RowStride * (j) + (i)) * (size))
-
-#define FETCH(x) fetch_texel_3d_##x
-
-#else
-#error	illegal number of texture dimensions
-#endif
-
-
-/* MESA_FORMAT_Z32 ***********************************************************/
-
-/* Fetch depth texel from 1D, 2D or 3D 32-bit depth texture,
- * returning 1 GLfloat.
- * Note: no GLchan version of this function.
- */
-static void FETCH(f_z32)( const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[0] = src[0] * (1.0F / 0xffffffff);
-}
-
-#if DIM == 3
-static void store_texel_z32(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLuint *depth = (const GLuint *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   dst[0] = *depth;
-}
-#endif
-
-
-/* MESA_FORMAT_Z16 ***********************************************************/
-
-/* Fetch depth texel from 1D, 2D or 3D 16-bit depth texture,
- * returning 1 GLfloat.
- * Note: no GLchan version of this function.
- */
-static void FETCH(f_z16)(const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[0] = src[0] * (1.0F / 65535.0F);
-}
-
-#if DIM == 3
-static void store_texel_z16(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLushort *depth = (const GLushort *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   dst[0] = *depth;
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_F32 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats.
- */
-static void FETCH(f_rgba_f32)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4);
-   texel[RCOMP] = src[0];
-   texel[GCOMP] = src[1];
-   texel[BCOMP] = src[2];
-   texel[ACOMP] = src[3];
-}
-
-#if DIM == 3
-static void store_texel_rgba_f32(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *depth = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4);
-   dst[0] = depth[RCOMP];
-   dst[1] = depth[GCOMP];
-   dst[2] = depth[BCOMP];
-   dst[3] = depth[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_F16 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_rgba_f16)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4);
-   texel[RCOMP] = _mesa_half_to_float(src[0]);
-   texel[GCOMP] = _mesa_half_to_float(src[1]);
-   texel[BCOMP] = _mesa_half_to_float(src[2]);
-   texel[ACOMP] = _mesa_half_to_float(src[3]);
-}
-
-#if DIM == 3
-static void store_texel_rgba_f16(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4);
-   dst[0] = _mesa_float_to_half(src[RCOMP]);
-   dst[1] = _mesa_float_to_half(src[GCOMP]);
-   dst[2] = _mesa_float_to_half(src[BCOMP]);
-   dst[3] = _mesa_float_to_half(src[ACOMP]);
-}
-#endif
-
-/* MESA_FORMAT_RGB_F32 *******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_rgb_f32)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3);
-   texel[RCOMP] = src[0];
-   texel[GCOMP] = src[1];
-   texel[BCOMP] = src[2];
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb_f32(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3);
-   dst[0] = src[RCOMP];
-   dst[1] = src[GCOMP];
-   dst[2] = src[BCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGB_F16 *******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_rgb_f16)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3);
-   texel[RCOMP] = _mesa_half_to_float(src[0]);
-   texel[GCOMP] = _mesa_half_to_float(src[1]);
-   texel[BCOMP] = _mesa_half_to_float(src[2]);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb_f16(struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3);
-   dst[0] = _mesa_float_to_half(src[RCOMP]);
-   dst[1] = _mesa_float_to_half(src[GCOMP]);
-   dst[2] = _mesa_float_to_half(src[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_ALPHA_F32 *****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_alpha_f32)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = src[0];
-}
-
-#if DIM == 3
-static void store_texel_alpha_f32(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   dst[0] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_ALPHA_F32 *****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_alpha_f16)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = _mesa_half_to_float(src[0]);
-}
-
-#if DIM == 3
-static void store_texel_alpha_f16(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_LUMINANCE_F32 *************************************************/
-
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_luminance_f32)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = src[0];
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_luminance_f32(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   dst[0] = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_LUMINANCE_F16 *************************************************/
-
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_luminance_f16)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = _mesa_half_to_float(src[0]);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_luminance_f16(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/
-
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_luminance_alpha_f32)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = src[0];
-   texel[ACOMP] = src[1];
-}
-
-#if DIM == 3
-static void store_texel_luminance_alpha_f32(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/
-
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_luminance_alpha_f16)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = _mesa_half_to_float(src[0]);
-   texel[ACOMP] = _mesa_half_to_float(src[1]);
-}
-
-#if DIM == 3
-static void store_texel_luminance_alpha_f16(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2);
-   dst[0] = _mesa_float_to_half(rgba[RCOMP]);
-   dst[1] = _mesa_float_to_half(rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_INTENSITY_F32 *************************************************/
-
-/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_intensity_f32)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = src[0];
-}
-
-#if DIM == 3
-static void store_texel_intensity_f32(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   dst[0] = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_INTENSITY_F16 *************************************************/
-
-/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_intensity_f16)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = _mesa_half_to_float(src[0]);
-}
-
-#if DIM == 3
-static void store_texel_intensity_f16(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_R_FLOAT32 *****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D R_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_r_f32)( const struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   texel[RCOMP] = src[0];
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_r_f32(struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   dst[0] = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_R_FLOAT16 *****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D R_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_r_f16)( const struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   texel[RCOMP] = _mesa_half_to_float(src[0]);
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_r_f16(struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_RG_FLOAT32 ****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RG_FLOAT32 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_rg_f32)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   texel[RCOMP] = src[0];
-   texel[GCOMP] = src[1];
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rg_f32(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RG_FLOAT16 ****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RG_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(f_rg_f16)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2);
-   texel[RCOMP] = _mesa_half_to_float(src[0]);
-   texel[GCOMP] = _mesa_half_to_float(src[1]);
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rg_f16(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *rgba = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2);
-   dst[0] = _mesa_float_to_half(rgba[RCOMP]);
-   dst[1] = _mesa_float_to_half(rgba[GCOMP]);
-}
-#endif
-
-
-/*
- * Begin Hardware formats
- */
-
-/* MESA_FORMAT_RGBA8888 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */
-static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
-}
-
-
-
-#if DIM == 3
-static void store_texel_rgba8888(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA888_REV ***************************************************/
-
-/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */
-static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
-}
-
-#if DIM == 3
-static void store_texel_rgba8888_rev(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB8888 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */
-static void FETCH(f_argb8888)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
-}
-
-#if DIM == 3
-static void store_texel_argb8888(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB8888_REV **************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */
-static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
-}
-
-#if DIM == 3
-static void store_texel_argb8888_rev(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_XRGB8888 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D xrgb8888 texture, return 4 GLchans */
-static void FETCH(f_xrgb8888)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
-   texel[ACOMP] = 1.0f;
-}
-
-#if DIM == 3
-static void store_texel_xrgb8888(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(0xff, rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_XRGB8888_REV **************************************************/
-
-/* Fetch texel from 1D, 2D or 3D xrgb8888_rev texture, return 4 GLfloats */
-static void FETCH(f_xrgb8888_rev)( const struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
-   texel[ACOMP] = 1.0f;
-}
-
-#if DIM == 3
-static void store_texel_xrgb8888_rev(struct gl_texture_image *texImage,
-                                     GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], 0xff);
-}
-#endif
-
-
-/* MESA_FORMAT_RGB888 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */
-static void FETCH(f_rgb888)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   texel[RCOMP] = UBYTE_TO_FLOAT( src[2] );
-   texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
-   texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb888(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   dst[0] = rgba[BCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_BGR888 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */
-static void FETCH(f_bgr888)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   texel[RCOMP] = UBYTE_TO_FLOAT( src[0] );
-   texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
-   texel[BCOMP] = UBYTE_TO_FLOAT( src[2] );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_bgr888(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-}
-#endif
-
-
-/* use color expansion like (g << 2) | (g >> 4) (does somewhat random rounding)
-   instead of slow (g << 2) * 255 / 252 (always rounds down) */
-
-/* MESA_FORMAT_RGB565 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */
-static void FETCH(f_rgb565)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = *src;
-   texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F);
-   texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F);
-   texel[BCOMP] = ((s      ) & 0x1f) * (1.0F / 31.0F);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb565(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_565(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_RGB565_REV ****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */
-static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */
-   texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
-   texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 3) & 0xfc) | ((s >>  9) & 0x3) );
-   texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >>  2) & 0x7) );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb565_rev(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   GLushort p = PACK_COLOR_565(CHAN_TO_UBYTE(rgba[RCOMP]),
-                               CHAN_TO_UBYTE(rgba[GCOMP]),
-                               CHAN_TO_UBYTE(rgba[BCOMP]));
-   *dst = (p >> 8) | (p << 8); /* byte swap */
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB4444 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */
-static void FETCH(f_argb4444)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = *src;
-   texel[RCOMP] = ((s >>  8) & 0xf) * (1.0F / 15.0F);
-   texel[GCOMP] = ((s >>  4) & 0xf) * (1.0F / 15.0F);
-   texel[BCOMP] = ((s      ) & 0xf) * (1.0F / 15.0F);
-   texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
-}
-
-#if DIM == 3
-static void store_texel_argb4444(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_4444(CHAN_TO_UBYTE(rgba[ACOMP]),
-                          CHAN_TO_UBYTE(rgba[RCOMP]),
-                          CHAN_TO_UBYTE(rgba[GCOMP]),
-                          CHAN_TO_UBYTE(rgba[BCOMP]));
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB4444_REV **************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */
-static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = ((s      ) & 0xf) * (1.0F / 15.0F);
-   texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
-   texel[BCOMP] = ((s >>  8) & 0xf) * (1.0F / 15.0F);
-   texel[ACOMP] = ((s >>  4) & 0xf) * (1.0F / 15.0F);
-}
-
-#if DIM == 3
-static void store_texel_argb4444_rev(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_4444(CHAN_TO_UBYTE(rgba[GCOMP]),
-                          CHAN_TO_UBYTE(rgba[BCOMP]),
-                          CHAN_TO_UBYTE(rgba[ACOMP]),
-                          CHAN_TO_UBYTE(rgba[RCOMP]));
-}
-#endif
-
-/* MESA_FORMAT_RGBA5551 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
-static void FETCH(f_rgba5551)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = *src;
-   texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F);
-   texel[GCOMP] = ((s >>  6) & 0x1f) * (1.0F / 31.0F);
-   texel[BCOMP] = ((s >>  1) & 0x1f) * (1.0F / 31.0F);
-   texel[ACOMP] = ((s      ) & 0x01) * 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgba5551(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_5551(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-/* MESA_FORMAT_ARGB1555 ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
-static void FETCH(f_argb1555)( const struct gl_texture_image *texImage,
-			     GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = *src;
-   texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F);
-   texel[GCOMP] = ((s >>  5) & 0x1f) * (1.0F / 31.0F);
-   texel[BCOMP] = ((s >>  0) & 0x1f) * (1.0F / 31.0F);
-   texel[ACOMP] = ((s >> 15) & 0x01) * 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_argb1555(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_1555(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB1555_REV **************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */
-static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */
-   texel[RCOMP] = UBYTE_TO_FLOAT( ((s >>  7) & 0xf8) | ((s >> 12) & 0x7) );
-   texel[GCOMP] = UBYTE_TO_FLOAT( ((s >>  2) & 0xf8) | ((s >>  7) & 0x7) );
-   texel[BCOMP] = UBYTE_TO_FLOAT( ((s <<  3) & 0xf8) | ((s >>  2) & 0x7) );
-   texel[ACOMP] = UBYTE_TO_FLOAT( ((s >> 15) & 0x01) * 255 );
-}
-
-#if DIM == 3
-static void store_texel_argb1555_rev(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_1555_REV(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_ARGB2101010 ***************************************************/
-
-/* Fetch texel from 1D, 2D or 3D argb2101010 texture, return 4 GLchans */
-static void FETCH(f_argb2101010)( const struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   const GLuint s = *src;
-   texel[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F);
-   texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F);
-   texel[BCOMP] = ((s >>  0) & 0x3ff) * (1.0F / 1023.0F);
-   texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F);
-}
-
-#if DIM == 3
-static void store_texel_argb2101010(struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   GLushort r = CHAN_TO_USHORT(rgba[RCOMP]);
-   GLushort g = CHAN_TO_USHORT(rgba[GCOMP]);
-   GLushort b = CHAN_TO_USHORT(rgba[BCOMP]);
-   GLushort a = CHAN_TO_USHORT(rgba[ACOMP]);
-   *dst = PACK_COLOR_2101010_US(a, r, g, b);
-}
-#endif
-
-
-/* MESA_FORMAT_RG88 **********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */
-static void FETCH(f_rg88)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 );
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_rg88(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   GLubyte r = CHAN_TO_UBYTE(rgba[RCOMP]);
-   GLubyte g = CHAN_TO_UBYTE(rgba[GCOMP]);
-   *dst = PACK_COLOR_88(g, r);
-}
-#endif
-
-
-/* MESA_FORMAT_RG88_REV ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rg88_rev texture, return 4 GLchans */
-static void FETCH(f_rg88_rev)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff );
-   texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 );
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_rg88_rev(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_88(rgba[GCOMP], rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_AL44 **********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D al44 texture, return 4 GLchans */
-static void FETCH(f_al44)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F);
-   texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
-}
-
-#if DIM == 3
-static void store_texel_al44(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_44(rgba[ACOMP], rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_AL88 **********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */
-static void FETCH(f_al88)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = 
-   texel[GCOMP] = 
-   texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 );
-}
-
-#if DIM == 3
-static void store_texel_al88(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_88(rgba[ACOMP], rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_R8 ************************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */
-static void FETCH(f_r8)(const struct gl_texture_image *texImage,
-			GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] = UBYTE_TO_FLOAT(s);
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_r8(struct gl_texture_image *texImage,
-			   GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_R16 ***********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D r16 texture, return 4 GLchans */
-static void FETCH(f_r16)(const struct gl_texture_image *texImage,
-			GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = USHORT_TO_FLOAT(s);
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_r16(struct gl_texture_image *texImage,
-			    GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = CHAN_TO_USHORT(rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_AL88_REV ******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */
-static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] = 
-   texel[GCOMP] = 
-   texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 );
-   texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff );
-}
-
-#if DIM == 3
-static void store_texel_al88_rev(struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_88(rgba[RCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_RG1616 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rg1616 texture, return 4 GLchans */
-static void FETCH(f_rg1616)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = USHORT_TO_FLOAT( s & 0xffff );
-   texel[GCOMP] = USHORT_TO_FLOAT( s >> 16 );
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_rg1616(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   GLushort r = CHAN_TO_USHORT(rgba[RCOMP]);
-   GLushort g = CHAN_TO_USHORT(rgba[GCOMP]);
-   *dst = PACK_COLOR_1616(g, r);
-}
-#endif
-
-
-/* MESA_FORMAT_RG1616_REV ****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rg1616_rev texture, return 4 GLchans */
-static void FETCH(f_rg1616_rev)( const struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = USHORT_TO_FLOAT( s >> 16 );
-   texel[GCOMP] = USHORT_TO_FLOAT( s & 0xffff );
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-#if DIM == 3
-static void store_texel_rg1616_rev(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_1616(rgba[GCOMP], rgba[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_AL1616 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D al1616 texture, return 4 GLchans */
-static void FETCH(f_al1616)( const struct gl_texture_image *texImage,
-			     GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff );
-   texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 );
-}
-
-#if DIM == 3
-static void store_texel_al1616(struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   GLushort l = CHAN_TO_USHORT(rgba[RCOMP]);
-   GLushort a = CHAN_TO_USHORT(rgba[ACOMP]);
-   *dst = PACK_COLOR_1616(a, l);
-}
-#endif
-
-
-/* MESA_FORMAT_AL1616_REV ****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D al1616_rev texture, return 4 GLchans */
-static void FETCH(f_al1616_rev)( const struct gl_texture_image *texImage,
-				 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 );
-   texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff );
-}
-
-#if DIM == 3
-static void store_texel_al1616_rev(struct gl_texture_image *texImage,
-				   GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLushort *rgba = (const GLushort *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_RGB332 ********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */
-static void FETCH(f_rgb332)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   const GLubyte s = *src;
-   texel[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F);
-   texel[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F);
-   texel[BCOMP] = ((s     ) & 0x3) * (1.0F / 3.0F);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb332(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_332(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_A8 ************************************************************/
-
-/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */
-static void FETCH(f_a8)( const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
-}
-
-#if DIM == 3
-static void store_texel_a8(struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_A16 ************************************************************/
-
-/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */
-static void FETCH(f_a16)( const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = USHORT_TO_FLOAT( src[0] );
-}
-
-#if DIM == 3
-static void store_texel_a16(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = CHAN_TO_USHORT(rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_L8 ************************************************************/
-
-/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */
-static void FETCH(f_l8)( const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_l8(struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_L16 ***********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D l16 texture, return 4 GLchans */
-static void FETCH(f_l16)( const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = USHORT_TO_FLOAT( src[0] );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_l16(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLushort *rgba = (const GLushort *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_I8 ************************************************************/
-
-/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */
-static void FETCH(f_i8)( const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
-}
-
-#if DIM == 3
-static void store_texel_i8(struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_I16 ***********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D i16 texture, return 4 GLchans */
-static void FETCH(f_i16)( const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = USHORT_TO_FLOAT( src[0] );
-}
-
-#if DIM == 3
-static void store_texel_i16(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLushort *rgba = (const GLushort *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* Fetch texel from 1D, 2D or 3D srgb8 texture, return 4 GLfloats */
-/* Note: component order is same as for MESA_FORMAT_RGB888 */
-static void FETCH(srgb8)(const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   texel[RCOMP] = nonlinear_to_linear(src[2]);
-   texel[GCOMP] = nonlinear_to_linear(src[1]);
-   texel[BCOMP] = nonlinear_to_linear(src[0]);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_srgb8(struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
-   dst[0] = rgba[BCOMP]; /* no conversion */
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[RCOMP];
-}
-#endif
-
-/* Fetch texel from 1D, 2D or 3D srgba8 texture, return 4 GLfloats */
-static void FETCH(srgba8)(const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = nonlinear_to_linear( (s >> 24) );
-   texel[GCOMP] = nonlinear_to_linear( (s >> 16) & 0xff );
-   texel[BCOMP] = nonlinear_to_linear( (s >>  8) & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff ); /* linear! */
-}
-
-#if DIM == 3
-static void store_texel_srgba8(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-/* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */
-static void FETCH(sargb8)(const struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = nonlinear_to_linear( (s >> 16) & 0xff );
-   texel[GCOMP] = nonlinear_to_linear( (s >>  8) & 0xff );
-   texel[BCOMP] = nonlinear_to_linear( (s      ) & 0xff );
-   texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */
-}
-
-#if DIM == 3
-static void store_texel_sargb8(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
-}
-#endif
-
-/* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */
-static void FETCH(sl8)(const struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   texel[RCOMP] = 
-   texel[GCOMP] = 
-   texel[BCOMP] = nonlinear_to_linear(src[0]);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_sl8(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   dst[0] = rgba[RCOMP];
-}
-#endif
-
-/* Fetch texel from 1D, 2D or 3D sla8 texture, return 4 GLfloats */
-static void FETCH(sla8)(const struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = nonlinear_to_linear(src[0]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */
-}
-
-#if DIM == 3
-static void store_texel_sla8(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_INT8 **************************************************/
-
-static void
-FETCH(rgba_int8)(const struct gl_texture_image *texImage,
-                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_int8(struct gl_texture_image *texImage,
-                      GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_INT16 **************************************************/
-
-static void
-FETCH(rgba_int16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLshort *src = TEXEL_ADDR(GLshort, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_int16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_INT32 **************************************************/
-
-static void
-FETCH(rgba_int32)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLint *src = TEXEL_ADDR(GLint, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_int32(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLint *rgba = (const GLint *) texel;
-   GLint *dst = TEXEL_ADDR(GLint, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_UINT8 **************************************************/
-
-static void
-FETCH(rgba_uint8)(const struct gl_texture_image *texImage,
-                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_uint8(struct gl_texture_image *texImage,
-                      GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_UINT16 **************************************************/
-
-static void
-FETCH(rgba_uint16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_uint16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLushort *rgba = (const GLushort *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_RGBA_UINT32 **************************************************/
-
-static void
-FETCH(rgba_uint32)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 4);
-   texel[RCOMP] = (GLfloat) src[0];
-   texel[GCOMP] = (GLfloat) src[1];
-   texel[BCOMP] = (GLfloat) src[2];
-   texel[ACOMP] = (GLfloat) src[3];
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_uint32(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLuint *rgba = (const GLuint *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 4);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = rgba[BCOMP];
-   dst[3] = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_DUDV8 ********************************************************/
-
-/* this format by definition produces 0,0,0,1 as rgba values,
-   however we'll return the dudv values as rg and fix up elsewhere */
-static void FETCH(dudv8)(const struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 2);
-   texel[RCOMP] = BYTE_TO_FLOAT(src[0]);
-   texel[GCOMP] = BYTE_TO_FLOAT(src[1]);
-   texel[BCOMP] = 0;
-   texel[ACOMP] = 0;
-}
-
-
-/* MESA_FORMAT_SIGNED_R8 ***********************************************/
-
-static void FETCH(signed_r8)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX( s );
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_signed_r8(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_A8 ***********************************************/
-
-static void FETCH(signed_a8)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   texel[RCOMP] = 0.0F;
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX( s );
-}
-
-#if DIM == 3
-static void store_texel_signed_a8(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   *dst = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_L8 ***********************************************/
-
-static void FETCH(signed_l8)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX( s );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_signed_l8(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_I8 ***********************************************/
-
-static void FETCH(signed_i8)( const struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX( s );
-}
-
-#if DIM == 3
-static void store_texel_signed_i8(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RG88_REV ***********************************************/
-
-static void FETCH(signed_rg88_rev)( const struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) );
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) );
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_signed_rg88_rev(struct gl_texture_image *texImage,
-                                        GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rg = (const GLbyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   dst[0] = PACK_COLOR_88(rg[GCOMP], rg[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_AL88 ***********************************************/
-
-static void FETCH(signed_al88)( const struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) );
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) );
-}
-
-#if DIM == 3
-static void store_texel_signed_al88(struct gl_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rg = (const GLbyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   dst[0] = PACK_COLOR_88(rg[ACOMP], rg[RCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RGBX8888 ***********************************************/
-
-static void FETCH(signed_rgbx8888)( const struct gl_texture_image *texImage,
-			            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) );
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) );
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >>  8) );
-   texel[ACOMP] = 1.0f;
-}
-
-#if DIM == 3
-static void store_texel_signed_rgbx8888(struct gl_texture_image *texImage,
-                                        GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], 255);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RGBA8888 ***********************************************/
-
-static void FETCH(signed_rgba8888)( const struct gl_texture_image *texImage,
-			            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) );
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) );
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >>  8) );
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s      ) );
-}
-
-#if DIM == 3
-static void store_texel_signed_rgba8888(struct gl_texture_image *texImage,
-                                        GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLbyte *rgba = (const GLbyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-static void FETCH(signed_rgba8888_rev)( const struct gl_texture_image *texImage,
-                                        GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s      ) );
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >>  8) );
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) );
-   texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) );
-}
-
-#if DIM == 3
-static void store_texel_signed_rgba8888_rev(struct gl_texture_image *texImage,
-                                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *rgba = (const GLubyte *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
-}
-#endif
-
-
-
-/* MESA_FORMAT_SIGNED_R16 ***********************************************/
-
-static void
-FETCH(signed_r16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] = SHORT_TO_FLOAT_TEX( s );
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void
-store_texel_signed_r16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   *dst = rgba[0];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_A16 ***********************************************/
-
-static void
-FETCH(signed_a16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] = 0.0F;
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = SHORT_TO_FLOAT_TEX( s );
-}
-
-#if DIM == 3
-static void
-store_texel_signed_a16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   *dst = rgba[ACOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_L16 ***********************************************/
-
-static void
-FETCH(signed_l16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = SHORT_TO_FLOAT_TEX( s );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void
-store_texel_signed_l16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_I16 ***********************************************/
-
-static void
-FETCH(signed_i16)(const struct gl_texture_image *texImage,
-                  GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] =
-   texel[ACOMP] = SHORT_TO_FLOAT_TEX( s );
-}
-
-#if DIM == 3
-static void
-store_texel_signed_i16(struct gl_texture_image *texImage,
-                       GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1);
-   *dst = rgba[RCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RG1616 ***********************************************/
-
-static void
-FETCH(signed_rg1616)(const struct gl_texture_image *texImage,
-                    GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2);
-   texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] );
-   texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] );
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void
-store_texel_signed_rg1616(struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2);
-   dst[0] = CHAN_TO_SHORT(rgba[RCOMP]);
-   dst[1] = CHAN_TO_SHORT(rgba[GCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_AL1616 ***********************************************/
-
-static void
-FETCH(signed_al1616)(const struct gl_texture_image *texImage,
-                    GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] );
-   texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] );
-}
-
-#if DIM == 3
-static void
-store_texel_signed_al1616(struct gl_texture_image *texImage,
-                         GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2);
-   dst[0] = CHAN_TO_SHORT(rgba[RCOMP]);
-   dst[1] = CHAN_TO_SHORT(rgba[ACOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RGB_16 ***********************************************/
-
-static void 
-FETCH(signed_rgb_16)(const struct gl_texture_image *texImage,
-                     GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 3);
-   texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] );
-   texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] );
-   texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] );
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void
-store_texel_signed_rgb_16(struct gl_texture_image *texImage,
-                          GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 3);
-   dst[0] = CHAN_TO_SHORT(rgba[RCOMP]);
-   dst[1] = CHAN_TO_SHORT(rgba[GCOMP]);
-   dst[2] = CHAN_TO_SHORT(rgba[BCOMP]);
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RGBA_16 ***********************************************/
-
-static void
-FETCH(signed_rgba_16)(const struct gl_texture_image *texImage,
-                      GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 4);
-   texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] );
-   texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] );
-   texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] );
-   texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] );
-}
-
-#if DIM == 3
-static void
-store_texel_signed_rgba_16(struct gl_texture_image *texImage,
-                           GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4);
-   dst[0] = CHAN_TO_SHORT(rgba[RCOMP]);
-   dst[1] = CHAN_TO_SHORT(rgba[GCOMP]);
-   dst[2] = CHAN_TO_SHORT(rgba[BCOMP]);
-   dst[3] = CHAN_TO_SHORT(rgba[ACOMP]);
-}
-#endif
-
-
-
-/* MESA_FORMAT_RGBA_16 ***********************************************/
-
-static void
-FETCH(rgba_16)(const struct gl_texture_image *texImage,
-               GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
-   texel[RCOMP] = USHORT_TO_FLOAT( s[0] );
-   texel[GCOMP] = USHORT_TO_FLOAT( s[1] );
-   texel[BCOMP] = USHORT_TO_FLOAT( s[2] );
-   texel[ACOMP] = USHORT_TO_FLOAT( s[3] );
-}
-
-#if DIM == 3
-static void
-store_texel_rgba_16(struct gl_texture_image *texImage,
-                    GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLchan *rgba = (const GLchan *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
-   dst[0] = CHAN_TO_USHORT(rgba[RCOMP]);
-   dst[1] = CHAN_TO_USHORT(rgba[GCOMP]);
-   dst[2] = CHAN_TO_USHORT(rgba[BCOMP]);
-   dst[3] = CHAN_TO_USHORT(rgba[ACOMP]);
-}
-#endif
-
-
-
-/* MESA_FORMAT_YCBCR *********************************************************/
-
-/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats.
- * We convert YCbCr to RGB here.
- */
-static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
-   const GLushort *src1 = src0 + 1;                               /* odd */
-   const GLubyte y0 = (*src0 >> 8) & 0xff;  /* luminance */
-   const GLubyte cb = *src0 & 0xff;         /* chroma U */
-   const GLubyte y1 = (*src1 >> 8) & 0xff;  /* luminance */
-   const GLubyte cr = *src1 & 0xff;         /* chroma V */
-   const GLubyte y = (i & 1) ? y1 : y0;     /* choose even/odd luminance */
-   GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128);
-   GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128);
-   GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128);
-   r *= (1.0F / 255.0F);
-   g *= (1.0F / 255.0F);
-   b *= (1.0F / 255.0F);
-   texel[RCOMP] = CLAMP(r, 0.0F, 1.0F);
-   texel[GCOMP] = CLAMP(g, 0.0F, 1.0F);
-   texel[BCOMP] = CLAMP(b, 0.0F, 1.0F);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_ycbcr(struct gl_texture_image *texImage,
-                              GLint i, GLint j, GLint k, const void *texel)
-{
-   (void) texImage;
-   (void) i;
-   (void) j;
-   (void) k;
-   (void) texel;
-   /* XXX to do */
-}
-#endif
-
-
-/* MESA_FORMAT_YCBCR_REV *****************************************************/
-
-/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats.
- * We convert YCbCr to RGB here.
- */
-static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
-   const GLushort *src1 = src0 + 1;                               /* odd */
-   const GLubyte y0 = *src0 & 0xff;         /* luminance */
-   const GLubyte cr = (*src0 >> 8) & 0xff;  /* chroma V */
-   const GLubyte y1 = *src1 & 0xff;         /* luminance */
-   const GLubyte cb = (*src1 >> 8) & 0xff;  /* chroma U */
-   const GLubyte y = (i & 1) ? y1 : y0;     /* choose even/odd luminance */
-   GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128);
-   GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128);
-   GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128);
-   r *= (1.0F / 255.0F);
-   g *= (1.0F / 255.0F);
-   b *= (1.0F / 255.0F);
-   texel[RCOMP] = CLAMP(r, 0.0F, 1.0F);
-   texel[GCOMP] = CLAMP(g, 0.0F, 1.0F);
-   texel[BCOMP] = CLAMP(b, 0.0F, 1.0F);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_ycbcr_rev(struct gl_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, const void *texel)
-{
-   (void) texImage;
-   (void) i;
-   (void) j;
-   (void) k;
-   (void) texel;
-   /* XXX to do */
-}
-#endif
-
-
-/* MESA_TEXFORMAT_Z24_S8 ***************************************************/
-
-static void FETCH(f_z24_s8)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* only return Z, not stencil data */
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   const GLfloat scale = 1.0F / (GLfloat) 0xffffff;
-   texel[0] = ((*src) >> 8) * scale;
-   ASSERT(texImage->TexFormat == MESA_FORMAT_Z24_S8 ||
-	  texImage->TexFormat == MESA_FORMAT_Z24_X8);
-   ASSERT(texel[0] >= 0.0F);
-   ASSERT(texel[0] <= 1.0F);
-}
-
-#if DIM == 3
-static void store_texel_z24_s8(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   /* only store Z, not stencil */
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   GLfloat depth = *((GLfloat *) texel);
-   GLuint zi = ((GLuint) (depth * 0xffffff)) << 8;
-   *dst = zi | (*dst & 0xff);
-}
-#endif
-
-
-/* MESA_TEXFORMAT_S8_Z24 ***************************************************/
-
-static void FETCH(f_s8_z24)( const struct gl_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* only return Z, not stencil data */
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   const GLfloat scale = 1.0F / (GLfloat) 0xffffff;
-   texel[0] = ((*src) & 0x00ffffff) * scale;
-   ASSERT(texImage->TexFormat == MESA_FORMAT_S8_Z24 ||
-	  texImage->TexFormat == MESA_FORMAT_X8_Z24);
-   ASSERT(texel[0] >= 0.0F);
-   ASSERT(texel[0] <= 1.0F);
-}
-
-#if DIM == 3
-static void store_texel_s8_z24(struct gl_texture_image *texImage,
-                               GLint i, GLint j, GLint k, const void *texel)
-{
-   /* only store Z, not stencil */
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   GLfloat depth = *((GLfloat *) texel);
-   GLuint zi = (GLuint) (depth * 0xffffff);
-   *dst = zi | (*dst & 0xff000000);
-}
-#endif
-
-
-/* MESA_FORMAT_RGB9_E5 ******************************************************/
-
-static void FETCH(rgb9_e5)( const struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   rgb9e5_to_float3(*src, texel);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_rgb9_e5(struct gl_texture_image *texImage,
-                                GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = float3_to_rgb9e5(src);
-}
-#endif
-
-
-/* MESA_FORMAT_R11_G11_B10_FLOAT *********************************************/
-
-static void FETCH(r11_g11_b10f)( const struct gl_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   r11g11b10f_to_float3(*src, texel);
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_r11_g11_b10f(struct gl_texture_image *texImage,
-                                     GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = float3_to_r11g11b10f(src);
-}
-#endif
-
-
-/* MESA_FORMAT_Z32_FLOAT_X24S8 ***********************************************/
-
-static void FETCH(z32f_x24s8)(const struct gl_texture_image *texImage,
-			      GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   texel[RCOMP] = src[0];
-   texel[GCOMP] = 0.0F;
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_z32f_x24s8(struct gl_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLfloat *src = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
-   dst[0] = src[0];
-}
-#endif
-
-
-#undef TEXEL_ADDR
-#undef DIM
-#undef FETCH
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index cb4a5b4e4..6113b2e9e 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -42,7 +42,6 @@
 #include "mfeatures.h"
 #include "state.h"
 #include "texcompress.h"
-#include "texfetch.h"
 #include "teximage.h"
 #include "texstate.h"
 #include "texpal.h"
@@ -602,7 +601,8 @@ _mesa_free_texture_image_data(struct gl_context *ctx,
 
 
 /**
- * Free texture image.
+ * Free a gl_texture_image and associated data.
+ * This function is a fallback called via ctx->Driver.DeleteTextureImage().
  *
  * \param texImage texture image.
  *
@@ -1076,8 +1076,6 @@ clear_teximage_fields(struct gl_texture_image *img)
    img->DepthLog2 = 0;
    img->Data = NULL;
    img->TexFormat = MESA_FORMAT_NONE;
-   img->FetchTexelc = NULL;
-   img->FetchTexelf = NULL;
 }
 
 
@@ -1104,7 +1102,7 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
                            GLint border, GLenum internalFormat,
                            gl_format format)
 {
-   GLint i, dims;
+   GLint i;
 
    ASSERT(img);
    ASSERT(width >= 0);
@@ -1176,10 +1174,6 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
    }
 
    img->TexFormat = format;
-
-   dims = _mesa_get_texture_dimensions(target);
-
-   _mesa_set_fetch_functions(img, dims);
 }
 
 
diff --git a/mesalib/src/mesa/main/texobj.c b/mesalib/src/mesa/main/texobj.c
index 1168f1842..1b90cca9b 100644
--- a/mesalib/src/mesa/main/texobj.c
+++ b/mesalib/src/mesa/main/texobj.c
@@ -202,7 +202,7 @@ _mesa_delete_texture_object(struct gl_context *ctx,
    for (face = 0; face < 6; face++) {
       for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
          if (texObj->Image[face][i]) {
-            _mesa_delete_texture_image( ctx, texObj->Image[face][i] );
+            ctx->Driver.DeleteTextureImage(ctx, texObj->Image[face][i]);
          }
       }
    }
diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index 19a01a14d..44dabe6de 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -43,7 +43,6 @@
 #include "main/texparam.h"
 #include "main/teximage.h"
 #include "main/texstate.h"
-#include "main/texfetch.h"
 #include "program/prog_instruction.h"
 
 
@@ -432,7 +431,6 @@ set_tex_parameteri(struct gl_context *ctx,
 	    if (texObj->Sampler.sRGBDecode != decode) {
 	       flush(ctx);
 	       texObj->Sampler.sRGBDecode = decode;
-	       _mesa_update_fetch_functions(texObj);
 	    }
 	    return GL_TRUE;
 	 }
diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
index 2cdc8ed67..b958615b5 100644
--- a/mesalib/src/mesa/main/texstore.c
+++ b/mesalib/src/mesa/main/texstore.c
@@ -4508,16 +4508,6 @@ _mesa_texstore(TEXSTORE_PARAMS)
 }
 
 
-/** Return texture size in bytes */
-static GLuint
-texture_size(const struct gl_texture_image *texImage)
-{
-   GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width,
-                                       texImage->Height, texImage->Depth);
-   return sz;
-}
-
-
 /**
  * Normally, we'll only _write_ texel data to a texture when we map it.
  * But if the user is providing depth or stencil values and the texture
@@ -4549,7 +4539,6 @@ _mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
                        struct gl_texture_object *texObj,
                        struct gl_texture_image *texImage)
 {
-   GLuint sizeInBytes;
    const GLbitfield rwMode = get_read_write_mode(format, texImage->TexFormat);
    const GLuint zeroImageOffset = 0;
    GLubyte *dstMap;
@@ -4558,10 +4547,9 @@ _mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
 
    (void) border;
 
-   /* allocate memory */
-   sizeInBytes = texture_size(texImage);
-   texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
-   if (!texImage->Data) {
+   /* allocate storage for texture data */
+   if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
+                                            width, 1, 1)) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
       return;
    }
@@ -4614,7 +4602,6 @@ _mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
                        struct gl_texture_object *texObj,
                        struct gl_texture_image *texImage)
 {
-   GLuint sizeInBytes;
    const GLbitfield rwMode = get_read_write_mode(format, texImage->TexFormat);
    const GLuint zeroImageOffset = 0;
    GLubyte *dstMap;
@@ -4623,10 +4610,9 @@ _mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
 
    (void) border;
 
-   /* allocate memory */
-   sizeInBytes = texture_size(texImage);
-   texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
-   if (!texImage->Data) {
+   /* allocate storage for texture data */
+   if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
+                                            width, height, 1)) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
       return;
    }
@@ -4678,7 +4664,6 @@ _mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
                        struct gl_texture_object *texObj,
                        struct gl_texture_image *texImage)
 {
-   GLuint sizeInBytes;
    const GLbitfield rwMode = get_read_write_mode(format, texImage->TexFormat);
    GLboolean success;
    GLint slice;
@@ -4689,13 +4674,10 @@ _mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
 
    (void) border;
 
-   /* allocate memory */
-   sizeInBytes = texture_size(texImage);
-   texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
-   if (!texImage->Data) {
-      /* Note: we check for a NULL image pointer here, _after_ we allocated
-       * memory for the texture.  That's what the GL spec calls for.
-       */
+   /* allocate storage for texture data */
+   if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
+                                            width, height, depth)) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
       return;
    }
 
@@ -4966,10 +4948,10 @@ _mesa_store_compressed_teximage2d(struct gl_context *ctx,
    ASSERT(texImage->Depth == 1);
    ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */
 
-   /* allocate storage */
-   texImage->Data = _mesa_alloc_texmemory(imageSize);
-   if (!texImage->Data) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB");
+   /* allocate storage for texture data */
+   if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
+                                            width, height, 1)) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
       return;
    }
author	marha <marha@users.sourceforge.net>	2011-09-19 13:23:24 +0200
committer	marha <marha@users.sourceforge.net>	2011-09-19 13:23:24 +0200
commit	b2c925e360e2c366526de15b44603f855f94139c (patch)
tree	2a963073645913b7c6d43fa04dc0aa13bda57b80 /mesalib/src/mesa/main
parent	18ae1470a8dbcfe369ddf0d7e17e0ea665251ccd (diff)
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