svn merge ^/branches/released .

1 files changed, 2040 insertions, 1768 deletions

diff --git a/mesalib/src/mesa/main/texfetch_tmp.h b/mesalib/src/mesa/main/texfetch_tmp.h
index f94355437..40f56209f 100644
--- a/mesalib/src/mesa/main/texfetch_tmp.h
+++ b/mesalib/src/mesa/main/texfetch_tmp.h
@@ -1,1768 +1,2040 @@
-/*
- * 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, 1);
-   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 *depth = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(*depth);
-}
-#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 *depth = (const GLfloat *) texel;
-   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
-   dst[0] = *depth;
-}
-#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 *depth = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(*depth);
-}
-#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
-
-
-
-
-/*
- * 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 GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]);
-}
-#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 GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], 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 GLubyte *rgba = (const GLubyte *) texel;
-   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[BCOMP], rgba[GCOMP], 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_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_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_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 GLushort *rgba = (const GLushort *) texel;
-   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_1616(rgba[ACOMP], rgba[RCOMP]);
-}
-#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_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_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_CI8 ***********************************************************/
-
-/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a
- * color table, and return 4 GLchans.
- */
-static void FETCH(f_ci8)( 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 struct gl_color_table *palette;
-   GLuint index;
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (ctx->Texture.SharedPalette) {
-      palette = &ctx->Texture.Palette;
-   }
-   else {
-      palette = &texImage->TexObject->Palette;
-   }
-   if (palette->Size == 0)
-      return; /* undefined results */
-
-   /* Mask the index against size of palette to avoid going out of bounds */
-   index = (*src) & (palette->Size - 1);
-
-   {
-      const GLfloat *table = palette->TableF;
-      switch (palette->_BaseFormat) {
-      case GL_ALPHA:
-         texel[RCOMP] =
-         texel[GCOMP] =
-         texel[BCOMP] = 0.0F;
-         texel[ACOMP] = table[index];
-         break;
-      case GL_LUMINANCE:
-         texel[RCOMP] =
-         texel[GCOMP] =
-         texel[BCOMP] = table[index];
-         texel[ACOMP] = 1.0F;
-         break;
-      case GL_INTENSITY:
-         texel[RCOMP] =
-         texel[GCOMP] =
-         texel[BCOMP] =
-         texel[ACOMP] = table[index];
-         break;
-      case GL_LUMINANCE_ALPHA:
-         texel[RCOMP] =
-         texel[GCOMP] =
-         texel[BCOMP] = table[index * 2 + 0];
-         texel[ACOMP] = table[index * 2 + 1];
-         break;
-      case GL_RGB:
-         texel[RCOMP] = table[index * 3 + 0];
-         texel[GCOMP] = table[index * 3 + 1];
-         texel[BCOMP] = table[index * 3 + 2];
-         texel[ACOMP] = 1.0F;
-         break;
-      case GL_RGBA:
-         texel[RCOMP] = table[index * 4 + 0];
-         texel[GCOMP] = table[index * 4 + 1];
-         texel[BCOMP] = table[index * 4 + 2];
-         texel[ACOMP] = table[index * 4 + 3];
-         break;
-      default:
-         _mesa_problem(ctx, "Bad palette format in fetch_texel_ci8");
-         return;
-      }
-   }
-}
-
-#if DIM == 3
-static void store_texel_ci8(struct gl_texture_image *texImage,
-                            GLint i, GLint j, GLint k, const void *texel)
-{
-   const GLubyte *index = (const GLubyte *) texel;
-   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
-   *dst = *index;
-}
-#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_RG88 ***********************************************/
-
-static void FETCH(signed_rg88)( 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 >> 8) );
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) );
-   texel[BCOMP] = 0.0F;
-   texel[ACOMP] = 1.0F;
-}
-
-#if DIM == 3
-static void store_texel_signed_rg88(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, 2);
-   *dst = PACK_COLOR_88(rg[RCOMP], rg[GCOMP]);
-}
-#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_R_16 ***********************************************/
-
-static void
-FETCH(signed_r_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, 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_r_16(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_RG_16 ***********************************************/
-
-static void
-FETCH(signed_rg_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, 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_rg_16(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, 2);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-}
-#endif
-
-
-/* MESA_FORMAT_SIGNED_RGBA_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 GLshort *rgba = (const GLshort *) texel;
-   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 3);
-   dst[0] = rgba[RCOMP];
-   dst[1] = rgba[GCOMP];
-   dst[2] = 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 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_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 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_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);
-   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);
-   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
-
-
-#undef TEXEL_ADDR
-#undef DIM
-#undef FETCH
+/*

+ * 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

+

+

+

+

+/*

+ * 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 GLubyte *rgba = (const GLubyte *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]);

+}

+#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 GLubyte *rgba = (const GLubyte *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], 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 GLubyte *rgba = (const GLubyte *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[BCOMP], rgba[GCOMP], 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 GLubyte *rgba = (const GLubyte *) texel;

+   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_2101010(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);

+}

+#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 GLubyte *rgba = (const GLubyte *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_88(rgba[RCOMP], rgba[GCOMP]);

+}

+#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] = UBYTE_TO_FLOAT( (s & 0x0f) << 4 );

+   texel[ACOMP] = UBYTE_TO_FLOAT(  s & 0xf0 );

+}

+

+#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 GLushort *rgba = (const GLushort *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = 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 GLubyte *rgba = (const GLubyte *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[GCOMP]);

+}

+#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 GLushort *rgba = (const GLushort *) texel;

+   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);

+   *dst = PACK_COLOR_1616(rgba[ACOMP], rgba[RCOMP]);

+}

+#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 GLushort *rgba = (const GLushort *) texel;

+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);

+   *dst = 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

+

+

+/* MESA_FORMAT_CI8 ***********************************************************/

+

+/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a

+ * color table, and return 4 GLchans.

+ */

+static void FETCH(f_ci8)( 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 struct gl_color_table *palette;

+   GLuint index;

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (ctx->Texture.SharedPalette) {

+      palette = &ctx->Texture.Palette;

+   }

+   else {

+      palette = &texImage->TexObject->Palette;

+   }

+   if (palette->Size == 0)

+      return; /* undefined results */

+

+   /* Mask the index against size of palette to avoid going out of bounds */

+   index = (*src) & (palette->Size - 1);

+

+   {

+      const GLfloat *table = palette->TableF;

+      switch (palette->_BaseFormat) {

+      case GL_ALPHA:

+         texel[RCOMP] =

+         texel[GCOMP] =

+         texel[BCOMP] = 0.0F;

+         texel[ACOMP] = table[index];

+         break;

+      case GL_LUMINANCE:

+         texel[RCOMP] =

+         texel[GCOMP] =

+         texel[BCOMP] = table[index];

+         texel[ACOMP] = 1.0F;

+         break;

+      case GL_INTENSITY:

+         texel[RCOMP] =

+         texel[GCOMP] =

+         texel[BCOMP] =

+         texel[ACOMP] = table[index];

+         break;

+      case GL_LUMINANCE_ALPHA:

+         texel[RCOMP] =

+         texel[GCOMP] =

+         texel[BCOMP] = table[index * 2 + 0];

+         texel[ACOMP] = table[index * 2 + 1];

+         break;

+      case GL_RGB:

+         texel[RCOMP] = table[index * 3 + 0];

+         texel[GCOMP] = table[index * 3 + 1];

+         texel[BCOMP] = table[index * 3 + 2];

+         texel[ACOMP] = 1.0F;

+         break;

+      case GL_RGBA:

+         texel[RCOMP] = table[index * 4 + 0];

+         texel[GCOMP] = table[index * 4 + 1];

+         texel[BCOMP] = table[index * 4 + 2];

+         texel[ACOMP] = table[index * 4 + 3];

+         break;

+      default:

+         _mesa_problem(ctx, "Bad palette format in fetch_texel_ci8");

+         return;

+      }

+   }

+}

+

+#if DIM == 3

+static void store_texel_ci8(struct gl_texture_image *texImage,

+                            GLint i, GLint j, GLint k, const void *texel)

+{

+   const GLubyte *index = (const GLubyte *) texel;

+   GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);

+   *dst = *index;

+}

+#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_RG88 ***********************************************/

+

+static void FETCH(signed_rg88)( 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 >> 8) );

+   texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) );

+   texel[BCOMP] = 0.0F;

+   texel[ACOMP] = 1.0F;

+}

+

+#if DIM == 3

+static void store_texel_signed_rg88(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, 2);

+   *dst = PACK_COLOR_88(rg[RCOMP], rg[GCOMP]);

+}

+#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_R_16 ***********************************************/

+

+static void

+FETCH(signed_r_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, 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_r_16(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_RG_16 ***********************************************/

+

+static void

+FETCH(signed_rg_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, 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_rg_16(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, 2);

+   dst[0] = rgba[RCOMP];

+   dst[1] = rgba[GCOMP];

+}

+#endif

+

+

+/* MESA_FORMAT_SIGNED_RGBA_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 GLshort *rgba = (const GLshort *) texel;

+   GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 3);

+   dst[0] = rgba[RCOMP];

+   dst[1] = rgba[GCOMP];

+   dst[2] = 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 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_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 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_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);

+   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);

+   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

+

+

+#undef TEXEL_ADDR

+#undef DIM

+#undef FETCH