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-rw-r--r--mesalib/src/mesa/main/extensions.c1
-rw-r--r--mesalib/src/mesa/main/formats.c42
-rw-r--r--mesalib/src/mesa/main/formats.h6
-rw-r--r--mesalib/src/mesa/main/texcompress.c20
-rw-r--r--mesalib/src/mesa/main/texcompress_rgtc.c1122
-rw-r--r--mesalib/src/mesa/main/texcompress_rgtc.h60
-rw-r--r--mesalib/src/mesa/main/texfetch.c31
-rw-r--r--mesalib/src/mesa/main/texformat.c1235
-rw-r--r--mesalib/src/mesa/main/texstore.c54
-rw-r--r--mesalib/src/mesa/main/texstore.h9
10 files changed, 1946 insertions, 634 deletions
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index 9f58b45e2..1b540e99a 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -428,6 +428,7 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
ctx->Extensions.ARB_texture_rg = GL_TRUE;
+ ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
#if FEATURE_ARB_vertex_program
ctx->Extensions.ARB_vertex_program = GL_TRUE;
diff --git a/mesalib/src/mesa/main/formats.c b/mesalib/src/mesa/main/formats.c
index 5c9b3068e..1d7bdad24 100644
--- a/mesalib/src/mesa/main/formats.c
+++ b/mesalib/src/mesa/main/formats.c
@@ -890,7 +890,43 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
16, 16, 16, 16,
0, 0, 0, 0, 0,
1, 1, 8
- }
+ },
+ {
+ MESA_FORMAT_RED_RGTC1,
+ "MESA_FORMAT_RED_RGTC1",
+ GL_RED,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ "MESA_FORMAT_SIGNED_RED_RGTC1",
+ GL_RED,
+ GL_SIGNED_NORMALIZED,
+ 4, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RG_RGTC2,
+ "MESA_FORMAT_RG_RGTC2",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ "MESA_FORMAT_SIGNED_RG_RGTC2",
+ GL_RG,
+ GL_SIGNED_NORMALIZED,
+ 4, 4, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
};
@@ -1530,6 +1566,10 @@ _mesa_format_to_type_and_comps(gl_format format,
case MESA_FORMAT_SRGBA_DXT5:
#endif
#endif
+ case MESA_FORMAT_RED_RGTC1:
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ case MESA_FORMAT_RG_RGTC2:
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
/* XXX generate error instead? */
*datatype = GL_UNSIGNED_BYTE;
*comps = 0;
diff --git a/mesalib/src/mesa/main/formats.h b/mesalib/src/mesa/main/formats.h
index cd7e0e25e..b32829145 100644
--- a/mesalib/src/mesa/main/formats.h
+++ b/mesalib/src/mesa/main/formats.h
@@ -179,6 +179,12 @@ typedef enum
MESA_FORMAT_RGBA_16, /* ... */
/*@}*/
+ /*@{*/
+ MESA_FORMAT_RED_RGTC1,
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ MESA_FORMAT_RG_RGTC2,
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ /*@}*/
MESA_FORMAT_COUNT
} gl_format;
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c
index eaebb06d3..9891946df 100644
--- a/mesalib/src/mesa/main/texcompress.c
+++ b/mesalib/src/mesa/main/texcompress.c
@@ -64,6 +64,7 @@ _mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats, GLboolean a
n += 2;
}
}
+ /* don't return RGTC - ARB_texture_compression_rgtc query 19 */
if (ctx->Extensions.EXT_texture_compression_s3tc) {
if (formats) {
formats[n++] = GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
@@ -163,6 +164,15 @@ _mesa_glenum_to_compressed_format(GLenum format)
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
return MESA_FORMAT_SRGBA_DXT5;
+ case GL_COMPRESSED_RED_RGTC1:
+ return MESA_FORMAT_RED_RGTC1;
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ return MESA_FORMAT_SIGNED_RED_RGTC1;
+ case GL_COMPRESSED_RG_RGTC2:
+ return MESA_FORMAT_RG_RGTC2;
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return MESA_FORMAT_SIGNED_RG_RGTC2;
+
default:
return MESA_FORMAT_NONE;
}
@@ -209,6 +219,16 @@ _mesa_compressed_format_to_glenum(struct gl_context *ctx, GLuint mesaFormat)
return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
#endif
#endif
+
+ case MESA_FORMAT_RED_RGTC1:
+ return GL_COMPRESSED_RED_RGTC1;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ return GL_COMPRESSED_SIGNED_RED_RGTC1;
+ case MESA_FORMAT_RG_RGTC2:
+ return GL_COMPRESSED_RG_RGTC2;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ return GL_COMPRESSED_SIGNED_RG_RGTC2;
+
default:
_mesa_problem(ctx, "Unexpected mesa texture format in"
" _mesa_compressed_format_to_glenum()");
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.c b/mesalib/src/mesa/main/texcompress_rgtc.c
new file mode 100644
index 000000000..586715083
--- /dev/null
+++ b/mesalib/src/mesa/main/texcompress_rgtc.c
@@ -0,0 +1,1122 @@
+/*
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * block compression parts are:
+ * Copyright (C) 2004 Roland Scheidegger All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author:
+ * Dave Airlie
+ */
+
+/**
+ * \file texcompress_rgtc.c
+ * GL_EXT_texture_compression_rgtc support.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "colormac.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mipmap.h"
+#include "texcompress.h"
+#include "texcompress_rgtc.h"
+#include "texstore.h"
+
+#define RGTC_DEBUG 0
+
+static void encode_rgtc_chan_u(GLubyte *blkaddr, GLubyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels);
+static void encode_rgtc_chan_s(GLbyte *blkaddr, GLbyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels);
+
+static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr,
+ GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+ GLubyte i, j;
+ const GLchan *curaddr;
+ for (j = 0; j < numypixels; j++) {
+ curaddr = srcaddr + j * srcRowStride * comps;
+ for (i = 0; i < numxpixels; i++) {
+ srcpixels[j][i] = *curaddr / (CHAN_MAX / 255);
+ curaddr += comps;
+ }
+ }
+}
+
+static void extractsrc_s( GLbyte srcpixels[4][4], const GLfloat *srcaddr,
+ GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+ GLubyte i, j;
+ const GLfloat *curaddr;
+ for (j = 0; j < numypixels; j++) {
+ curaddr = srcaddr + j * srcRowStride * comps;
+ for (i = 0; i < numxpixels; i++) {
+ srcpixels[j][i] = FLOAT_TO_BYTE_TEX(*curaddr);
+ curaddr += comps;
+ }
+ }
+}
+
+
+GLboolean
+_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
+{
+ GLubyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+ const GLchan *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const char *srcaddr;
+ GLubyte srcpixels[4][4];
+ GLubyte *blkaddr;
+ GLint dstRowDiff;
+ ASSERT(dstFormat == MESA_FORMAT_RED_RGTC1);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+
+ tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+ encode_rgtc_chan_u(blkaddr, srcpixels, numxpixels, numypixels);
+ srcaddr += numxpixels;
+ blkaddr += 8;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS)
+{
+ GLbyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+ const GLfloat *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLfloat *srcaddr;
+ GLbyte srcpixels[4][4];
+ GLbyte *blkaddr;
+ GLint dstRowDiff;
+ ASSERT(dstFormat == MESA_FORMAT_SIGNED_RED_RGTC1);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking, 0x0);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+ encode_rgtc_chan_s(blkaddr, srcpixels, numxpixels, numypixels);
+ srcaddr += numxpixels;
+ blkaddr += 8;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
+{
+ GLubyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+ const GLchan *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const char *srcaddr;
+ GLubyte srcpixels[4][4];
+ GLubyte *blkaddr;
+ GLint dstRowDiff;
+
+ ASSERT(dstFormat == MESA_FORMAT_RG_RGTC2);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth * 2;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+ encode_rgtc_chan_u(blkaddr, srcpixels, numxpixels, numypixels);
+
+ blkaddr += 8;
+ extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+ encode_rgtc_chan_u(blkaddr, srcpixels, numxpixels, numypixels);
+
+ blkaddr += 8;
+
+ srcaddr += numxpixels * 2;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
+{
+ GLbyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+ const GLfloat *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLfloat *srcaddr;
+ GLbyte srcpixels[4][4];
+ GLbyte *blkaddr;
+ GLint dstRowDiff;
+
+ ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG_RGTC2);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking, 0x0);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ for (j = 0; j < srcHeight; j += 4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth * 2;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+
+ extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+ encode_rgtc_chan_s(blkaddr, srcpixels, numxpixels, numypixels);
+ blkaddr += 8;
+
+ extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+ encode_rgtc_chan_s(blkaddr, srcpixels, numxpixels, numypixels);
+ blkaddr += 8;
+
+ srcaddr += numxpixels * 2;
+
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+static void _fetch_texel_rgtc_u(GLint srcRowStride, const GLubyte *pixdata,
+ GLint i, GLint j, GLchan *value, int comps)
+{
+ GLchan decode;
+ const GLubyte *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps);
+ const GLubyte alpha0 = blksrc[0];
+ const GLubyte alpha1 = blksrc[1];
+ const GLubyte bit_pos = ((j&3) * 4 + (i&3)) * 3;
+ const GLubyte acodelow = blksrc[2 + bit_pos / 8];
+ const GLubyte acodehigh = blksrc[3 + bit_pos / 8];
+ const GLubyte code = (acodelow >> (bit_pos & 0x7) |
+ (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7;
+
+ if (code == 0)
+ decode = UBYTE_TO_CHAN( alpha0 );
+ else if (code == 1)
+ decode = UBYTE_TO_CHAN( alpha1 );
+ else if (alpha0 > alpha1)
+ decode = UBYTE_TO_CHAN( ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7) );
+ else if (code < 6)
+ decode = UBYTE_TO_CHAN( ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5) );
+ else if (code == 6)
+ decode = 0;
+ else
+ decode = CHAN_MAX;
+
+ *value = decode;
+}
+
+
+static void _fetch_texel_rgtc_s(GLint srcRowStride, const GLbyte *pixdata,
+ GLint i, GLint j, GLbyte *value, int comps)
+{
+ GLbyte decode;
+ const GLbyte *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps);
+ const GLbyte alpha0 = blksrc[0];
+ const GLbyte alpha1 = blksrc[1];
+ const GLbyte bit_pos = ((j&3) * 4 + (i&3)) * 3;
+ const GLbyte acodelow = blksrc[2 + bit_pos / 8];
+ const GLbyte acodehigh = blksrc[3 + bit_pos / 8];
+ const GLbyte code = (acodelow >> (bit_pos & 0x7) |
+ (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7;
+
+ if (code == 0)
+ decode = alpha0;
+ else if (code == 1)
+ decode = alpha1;
+ else if (alpha0 > alpha1)
+ decode = ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7);
+ else if (code < 6)
+ decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5);
+ else if (code == 6)
+ decode = -128;
+ else
+ decode = 127;
+
+ *value = decode;
+}
+
+void
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLchan red;
+ _fetch_texel_rgtc_u(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] = CHAN_TO_FLOAT(red);
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red;
+ _fetch_texel_rgtc_s(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLchan red, green;
+ _fetch_texel_rgtc_u(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 2);
+ _fetch_texel_rgtc_u(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] = CHAN_TO_FLOAT(red);
+ texel[GCOMP] = CHAN_TO_FLOAT(green);
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red, green;
+ _fetch_texel_rgtc_s(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 2);
+ _fetch_texel_rgtc_s(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+static void write_rgtc_encoded_channel(GLubyte *blkaddr,
+ GLubyte alphabase1,
+ GLubyte alphabase2,
+ GLubyte alphaenc[16])
+{
+ *blkaddr++ = alphabase1;
+ *blkaddr++ = alphabase2;
+ *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6);
+ *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7);
+ *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5);
+ *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6);
+ *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7);
+ *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5);
+}
+
+static void encode_rgtc_chan_u(GLubyte *blkaddr, GLubyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels)
+{
+ GLubyte alphabase[2], alphause[2];
+ GLshort alphatest[2] = { 0 };
+ GLuint alphablockerror1, alphablockerror2, alphablockerror3;
+ GLubyte i, j, aindex, acutValues[7];
+ GLubyte alphaenc1[16], alphaenc2[16], alphaenc3[16];
+ GLboolean alphaabsmin = GL_FALSE;
+ GLboolean alphaabsmax = GL_FALSE;
+ GLshort alphadist;
+
+ /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */
+ alphabase[0] = 0xff; alphabase[1] = 0x0;
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] == 0)
+ alphaabsmin = GL_TRUE;
+ else if (srccolors[j][i] == 255)
+ alphaabsmax = GL_TRUE;
+ else {
+ if (srccolors[j][i] > alphabase[1])
+ alphabase[1] = srccolors[j][i];
+ if (srccolors[j][i] < alphabase[0])
+ alphabase[0] = srccolors[j][i];
+ }
+ }
+ }
+
+
+ if ((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax)) { /* one color, either max or min */
+ /* shortcut here since it is a very common case (and also avoids later problems) */
+ /* || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax) */
+ /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */
+
+ *blkaddr++ = srccolors[0][0];
+ blkaddr++;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+#if RGTC_DEBUG
+ fprintf(stderr, "enc0 used\n");
+#endif
+ return;
+ }
+
+ /* find best encoding for alpha0 > alpha1 */
+ /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */
+ alphablockerror1 = 0x0;
+ alphablockerror2 = 0xffffffff;
+ alphablockerror3 = 0xffffffff;
+ if (alphaabsmin) alphause[0] = 0;
+ else alphause[0] = alphabase[0];
+ if (alphaabsmax) alphause[1] = 255;
+ else alphause[1] = alphabase[1];
+ /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */
+ for (aindex = 0; aindex < 7; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14;
+ }
+
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] > acutValues[0]) {
+ alphaenc1[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphause[1];
+ }
+ else if (srccolors[j][i] > acutValues[1]) {
+ alphaenc1[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[2]) {
+ alphaenc1[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[3]) {
+ alphaenc1[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[4]) {
+ alphaenc1[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[5]) {
+ alphaenc1[4*j + i] = 6;
+ alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[6]) {
+ alphaenc1[4*j + i] = 7;
+ alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7;
+ }
+ else {
+ alphaenc1[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphause[0];
+ }
+ alphablockerror1 += alphadist * alphadist;
+ }
+ }
+
+#if RGTC_DEBUG
+ for (i = 0; i < 16; i++) {
+ fprintf(stderr, "%d ", alphaenc1[i]);
+ }
+ fprintf(stderr, "cutVals ");
+ for (i = 0; i < 8; i++) {
+ fprintf(stderr, "%d ", acutValues[i]);
+ }
+ fprintf(stderr, "srcVals ");
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ fprintf(stderr, "%d ", srccolors[j][i]);
+ }
+ }
+ fprintf(stderr, "\n");
+#endif
+
+ /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax
+ are false but try it anyway */
+ if (alphablockerror1 >= 32) {
+
+ /* don't bother if encoding is already very good, this condition should also imply
+ we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */
+ alphablockerror2 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] == 0) {
+ alphaenc2[4*j + i] = 6;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] == 255) {
+ alphaenc2[4*j + i] = 7;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc2[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphabase[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc2[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc2[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc2[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc2[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5;
+ }
+ else {
+ alphaenc2[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphabase[1];
+ }
+ alphablockerror2 += alphadist * alphadist;
+ }
+ }
+
+
+ /* skip this if the error is already very small
+ this encoding is MUCH better on average than #2 though, but expensive! */
+ if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) {
+ GLshort blockerrlin1 = 0;
+ GLshort blockerrlin2 = 0;
+ GLubyte nralphainrangelow = 0;
+ GLubyte nralphainrangehigh = 0;
+ alphatest[0] = 0xff;
+ alphatest[1] = 0x0;
+ /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (255 -(alphabase[1] - alphabase[0]) / 28)))
+ alphatest[1] = srccolors[j][i];
+ if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28))
+ alphatest[0] = srccolors[j][i];
+ }
+ }
+ /* shouldn't happen too often, don't really care about those degenerated cases */
+ if (alphatest[1] <= alphatest[0]) {
+ alphatest[0] = 1;
+ alphatest[1] = 254;
+ }
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+
+ /* find the "average" difference between the alpha values and the next encoded value.
+ This is then used to calculate new base values.
+ Should there be some weighting, i.e. those values closer to alphatest[x] have more weight,
+ since they will see more improvement, and also because the values in the middle are somewhat
+ likely to get no improvement at all (because the base values might move in different directions)?
+ OTOH it would mean the values in the middle are even less likely to get an improvement
+ */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ }
+ else if (srccolors[j][i] > ((255 + alphatest[1]) / 2)) {
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ blockerrlin1 += (srccolors[j][i] - alphatest[0]);
+ nralphainrangelow += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else {
+ blockerrlin2 += (srccolors[j][i] - alphatest[1]);
+ nralphainrangehigh += 1;
+ }
+ }
+ }
+ /* shouldn't happen often, needed to avoid div by zero */
+ if (nralphainrangelow == 0) nralphainrangelow = 1;
+ if (nralphainrangehigh == 0) nralphainrangehigh = 1;
+ alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow);
+#if RGTC_DEBUG
+ fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow);
+ fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh);
+#endif
+ /* again shouldn't really happen often... */
+ if (alphatest[0] < 0) {
+ alphatest[0] = 0;
+ }
+ alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh);
+ if (alphatest[1] > 255) {
+ alphatest[1] = 255;
+ }
+
+ alphablockerror3 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ alphaenc3[4*j + i] = 6;
+ alphadist = srccolors[j][i];
+ }
+ else if (srccolors[j][i] > ((255 + alphatest[1]) / 2)) {
+ alphaenc3[4*j + i] = 7;
+ alphadist = 255 - srccolors[j][i];
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc3[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphatest[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc3[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc3[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc3[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc3[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5;
+ }
+ else {
+ alphaenc3[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphatest[1];
+ }
+ alphablockerror3 += alphadist * alphadist;
+ }
+ }
+ }
+ }
+ /* write the alpha values and encoding back. */
+ if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) {
+#if RGTC_DEBUG
+ if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1);
+#endif
+ write_rgtc_encoded_channel( blkaddr, alphause[1], alphause[0], alphaenc1 );
+ }
+ else if (alphablockerror2 <= alphablockerror3) {
+#if RGTC_DEBUG
+ if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2);
+#endif
+ write_rgtc_encoded_channel( blkaddr, alphabase[0], alphabase[1], alphaenc2 );
+ }
+ else {
+#if RGTC_DEBUG
+ fprintf(stderr, "enc3 used, error %d\n", alphablockerror3);
+#endif
+ write_rgtc_encoded_channel( blkaddr, (GLubyte)alphatest[0], (GLubyte)alphatest[1], alphaenc3 );
+ }
+}
+
+
+static void write_rgtc_encoded_channel_s(GLbyte *blkaddr,
+ GLbyte alphabase1,
+ GLbyte alphabase2,
+ GLbyte alphaenc[16])
+{
+ *blkaddr++ = alphabase1;
+ *blkaddr++ = alphabase2;
+ *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6);
+ *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7);
+ *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5);
+ *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6);
+ *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7);
+ *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5);
+}
+
+static void encode_rgtc_chan_s(GLbyte *blkaddr, GLbyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels)
+{
+ GLbyte alphabase[2], alphause[2];
+ GLshort alphatest[2] = { 0 };
+ GLuint alphablockerror1, alphablockerror2, alphablockerror3;
+ GLbyte i, j, aindex, acutValues[7];
+ GLbyte alphaenc1[16], alphaenc2[16], alphaenc3[16];
+ GLboolean alphaabsmin = GL_FALSE;
+ GLboolean alphaabsmax = GL_FALSE;
+ GLshort alphadist;
+
+ /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */
+ alphabase[0] = 0xff; alphabase[1] = 0x0;
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] == 0)
+ alphaabsmin = GL_TRUE;
+ else if (srccolors[j][i] == 255)
+ alphaabsmax = GL_TRUE;
+ else {
+ if (srccolors[j][i] > alphabase[1])
+ alphabase[1] = srccolors[j][i];
+ if (srccolors[j][i] < alphabase[0])
+ alphabase[0] = srccolors[j][i];
+ }
+ }
+ }
+
+
+ if ((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax)) { /* one color, either max or min */
+ /* shortcut here since it is a very common case (and also avoids later problems) */
+ /* || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax) */
+ /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */
+
+ *blkaddr++ = srccolors[0][0];
+ blkaddr++;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+#if RGTC_DEBUG
+ fprintf(stderr, "enc0 used\n");
+#endif
+ return;
+ }
+
+ /* find best encoding for alpha0 > alpha1 */
+ /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */
+ alphablockerror1 = 0x0;
+ alphablockerror2 = 0xffffffff;
+ alphablockerror3 = 0xffffffff;
+ if (alphaabsmin) alphause[0] = 0;
+ else alphause[0] = alphabase[0];
+ if (alphaabsmax) alphause[1] = 255;
+ else alphause[1] = alphabase[1];
+ /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */
+ for (aindex = 0; aindex < 7; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14;
+ }
+
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] > acutValues[0]) {
+ alphaenc1[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphause[1];
+ }
+ else if (srccolors[j][i] > acutValues[1]) {
+ alphaenc1[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[2]) {
+ alphaenc1[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[3]) {
+ alphaenc1[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[4]) {
+ alphaenc1[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[5]) {
+ alphaenc1[4*j + i] = 6;
+ alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[6]) {
+ alphaenc1[4*j + i] = 7;
+ alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7;
+ }
+ else {
+ alphaenc1[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphause[0];
+ }
+ alphablockerror1 += alphadist * alphadist;
+ }
+ }
+#if RGTC_DEBUG
+ for (i = 0; i < 16; i++) {
+ fprintf(stderr, "%d ", alphaenc1[i]);
+ }
+ fprintf(stderr, "cutVals ");
+ for (i = 0; i < 8; i++) {
+ fprintf(stderr, "%d ", acutValues[i]);
+ }
+ fprintf(stderr, "srcVals ");
+ for (j = 0; j < numypixels; j++)
+ for (i = 0; i < numxpixels; i++) {
+ fprintf(stderr, "%d ", srccolors[j][i]);
+ }
+
+ fprintf(stderr, "\n");
+#endif
+
+ /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax
+ are false but try it anyway */
+ if (alphablockerror1 >= 32) {
+
+ /* don't bother if encoding is already very good, this condition should also imply
+ we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */
+ alphablockerror2 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] == 0) {
+ alphaenc2[4*j + i] = 6;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] == 255) {
+ alphaenc2[4*j + i] = 7;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc2[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphabase[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc2[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc2[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc2[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc2[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5;
+ }
+ else {
+ alphaenc2[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphabase[1];
+ }
+ alphablockerror2 += alphadist * alphadist;
+ }
+ }
+
+
+ /* skip this if the error is already very small
+ this encoding is MUCH better on average than #2 though, but expensive! */
+ if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) {
+ GLshort blockerrlin1 = 0;
+ GLshort blockerrlin2 = 0;
+ GLubyte nralphainrangelow = 0;
+ GLubyte nralphainrangehigh = 0;
+ alphatest[0] = 0xff;
+ alphatest[1] = 0x0;
+ /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (255 -(alphabase[1] - alphabase[0]) / 28)))
+ alphatest[1] = srccolors[j][i];
+ if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28))
+ alphatest[0] = srccolors[j][i];
+ }
+ }
+ /* shouldn't happen too often, don't really care about those degenerated cases */
+ if (alphatest[1] <= alphatest[0]) {
+ alphatest[0] = 1;
+ alphatest[1] = 254;
+ }
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+
+ /* find the "average" difference between the alpha values and the next encoded value.
+ This is then used to calculate new base values.
+ Should there be some weighting, i.e. those values closer to alphatest[x] have more weight,
+ since they will see more improvement, and also because the values in the middle are somewhat
+ likely to get no improvement at all (because the base values might move in different directions)?
+ OTOH it would mean the values in the middle are even less likely to get an improvement
+ */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ }
+ else if (srccolors[j][i] > ((255 + alphatest[1]) / 2)) {
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ blockerrlin1 += (srccolors[j][i] - alphatest[0]);
+ nralphainrangelow += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else {
+ blockerrlin2 += (srccolors[j][i] - alphatest[1]);
+ nralphainrangehigh += 1;
+ }
+ }
+ }
+ /* shouldn't happen often, needed to avoid div by zero */
+ if (nralphainrangelow == 0) nralphainrangelow = 1;
+ if (nralphainrangehigh == 0) nralphainrangehigh = 1;
+ alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow);
+#if RGTC_DEBUG
+ fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow);
+ fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh);
+#endif
+ /* again shouldn't really happen often... */
+ if (alphatest[0] < 0) {
+ alphatest[0] = 0;
+ }
+ alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh);
+ if (alphatest[1] > 255) {
+ alphatest[1] = 255;
+ }
+
+ alphablockerror3 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ alphaenc3[4*j + i] = 6;
+ alphadist = srccolors[j][i];
+ }
+ else if (srccolors[j][i] > ((255 + alphatest[1]) / 2)) {
+ alphaenc3[4*j + i] = 7;
+ alphadist = 255 - srccolors[j][i];
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc3[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphatest[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc3[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc3[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc3[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc3[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5;
+ }
+ else {
+ alphaenc3[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphatest[1];
+ }
+ alphablockerror3 += alphadist * alphadist;
+ }
+ }
+ }
+ }
+ /* write the alpha values and encoding back. */
+ if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) {
+#if RGTC_DEBUG
+ if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1);
+#endif
+ write_rgtc_encoded_channel_s( blkaddr, alphause[1], alphause[0], alphaenc1 );
+ }
+ else if (alphablockerror2 <= alphablockerror3) {
+#if RGTC_DEBUG
+ if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2);
+#endif
+ write_rgtc_encoded_channel_s( blkaddr, alphabase[0], alphabase[1], alphaenc2 );
+ }
+ else {
+#if RGTC_DEBUG
+ fprintf(stderr, "enc3 used, error %d\n", alphablockerror3);
+#endif
+ write_rgtc_encoded_channel_s( blkaddr, (GLubyte)alphatest[0], (GLubyte)alphatest[1], alphaenc3 );
+ }
+}
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.h b/mesalib/src/mesa/main/texcompress_rgtc.h
new file mode 100644
index 000000000..424edc458
--- /dev/null
+++ b/mesalib/src/mesa/main/texcompress_rgtc.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2011 Red Hat 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 (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TEXCOMPRESS_RGTC_H
+#define TEXCOMPRESS_RGTC_H
+
+#include "glheader.h"
+#include "mfeatures.h"
+#include "texstore.h"
+
+struct gl_texture_image;
+
+extern GLboolean
+_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS);
+
+extern void
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+#endif
diff --git a/mesalib/src/mesa/main/texfetch.c b/mesalib/src/mesa/main/texfetch.c
index 1e7ea9480..8666076ab 100644
--- a/mesalib/src/mesa/main/texfetch.c
+++ b/mesalib/src/mesa/main/texfetch.c
@@ -38,6 +38,7 @@
#include "texcompress.h"
#include "texcompress_fxt1.h"
#include "texcompress_s3tc.h"
+#include "texcompress_rgtc.h"
#include "texfetch.h"
#include "teximage.h"
@@ -756,7 +757,35 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
fetch_texel_2d_rgba_16,
fetch_texel_3d_rgba_16,
store_texel_rgba_16
- }
+ },
+ {
+ MESA_FORMAT_RED_RGTC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_red_rgtc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_red_rgtc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RG_RGTC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_rg_rgtc2,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_rg_rgtc2,
+ NULL,
+ NULL
+ },
};
diff --git a/mesalib/src/mesa/main/texformat.c b/mesalib/src/mesa/main/texformat.c
index 2542cea85..8040fac7d 100644
--- a/mesalib/src/mesa/main/texformat.c
+++ b/mesalib/src/mesa/main/texformat.c
@@ -1,608 +1,627 @@
-/*
- * 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 texformat.c
- * Texture formats.
- *
- * \author Gareth Hughes
- * \author Brian Paul
- */
-
-
-#include "context.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "texcompress.h"
-#include "texformat.h"
-
-#define RETURN_IF_SUPPORTED(f) do { \
- if (ctx->TextureFormatSupported[f]) \
- return f; \
-} while (0)
-
-/**
- * Choose an appropriate texture format given the format, type and
- * internalFormat parameters passed to glTexImage().
- *
- * \param ctx the GL context.
- * \param internalFormat user's prefered internal texture format.
- * \param format incoming image pixel format.
- * \param type incoming image data type.
- *
- * \return a pointer to a gl_texture_format object which describes the
- * choosen texture format, or NULL on failure.
- *
- * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
- * will typically override this function with a specialized version.
- */
-gl_format
-_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat,
- GLenum format, GLenum type )
-{
- (void) format;
- (void) type;
-
- switch (internalFormat) {
- /* shallow RGBA formats */
- case 4:
- case GL_RGBA:
- if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
- } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
- }
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
-
- case GL_RGBA8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- case GL_RGB5_A1:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
- break;
- case GL_RGBA2:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
- break;
- case GL_RGBA4:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
- break;
-
- /* deep RGBA formats */
- case GL_RGB10_A2:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- case GL_RGBA12:
- case GL_RGBA16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
-
- /* shallow RGB formats */
- case 3:
- case GL_RGB:
- case GL_RGB8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- case GL_R3_G3_B2:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332);
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- case GL_RGB4:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
- break;
- case GL_RGB5:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
- break;
-
- /* deep RGB formats */
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
-
- /* Alpha formats */
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
- break;
-
- case GL_ALPHA12:
- case GL_ALPHA16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_A16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
- break;
-
- /* Luminance formats */
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
- break;
-
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_L16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
- break;
-
- /* Luminance/Alpha formats */
- case GL_LUMINANCE4_ALPHA4:
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL44);
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
- break;
-
- case 2:
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
- break;
-
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616);
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
- break;
-
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
- break;
-
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_I16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
- break;
-
- case GL_COLOR_INDEX:
- case GL_COLOR_INDEX1_EXT:
- case GL_COLOR_INDEX2_EXT:
- case GL_COLOR_INDEX4_EXT:
- case GL_COLOR_INDEX12_EXT:
- case GL_COLOR_INDEX16_EXT:
- case GL_COLOR_INDEX8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_CI8);
- break;
-
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.ARB_depth_texture) {
- switch (internalFormat) {
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT24:
- case GL_DEPTH_COMPONENT32:
- RETURN_IF_SUPPORTED(MESA_FORMAT_Z32);
- RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
- break;
- case GL_DEPTH_COMPONENT16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_Z16);
- RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
- default:
- ; /* fallthrough */
- }
- }
-
- switch (internalFormat) {
- case GL_COMPRESSED_ALPHA_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
- break;
- case GL_COMPRESSED_LUMINANCE_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
- break;
- case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
- break;
- case GL_COMPRESSED_INTENSITY_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
- break;
- case GL_COMPRESSED_RGB_ARB:
- if (ctx->Extensions.EXT_texture_compression_s3tc ||
- ctx->Extensions.S3_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
- if (ctx->Extensions.TDFX_texture_compression_FXT1)
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- case GL_COMPRESSED_RGBA_ARB:
- if (ctx->Extensions.EXT_texture_compression_s3tc ||
- ctx->Extensions.S3_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */
- if (ctx->Extensions.TDFX_texture_compression_FXT1)
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.MESA_ycbcr_texture) {
- if (internalFormat == GL_YCBCR_MESA) {
- if (type == GL_UNSIGNED_SHORT_8_8_MESA)
- RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR);
- else
- RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV);
- }
- }
-
-#if FEATURE_texture_fxt1
- if (ctx->Extensions.TDFX_texture_compression_FXT1) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
- break;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
- break;
- default:
- ; /* fallthrough */
- }
- }
-#endif
-
-#if FEATURE_texture_s3tc
- if (ctx->Extensions.EXT_texture_compression_s3tc) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
- break;
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1);
- break;
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
- break;
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5);
- break;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.S3_s3tc) {
- switch (internalFormat) {
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
- break;
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
- break;
- default:
- ; /* fallthrough */
- }
- }
-#endif
-
- if (ctx->Extensions.ARB_texture_float) {
- switch (internalFormat) {
- case GL_ALPHA16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16);
- break;
- case GL_ALPHA32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32);
- break;
- case GL_LUMINANCE16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16);
- break;
- case GL_LUMINANCE32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32);
- break;
- case GL_LUMINANCE_ALPHA16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16);
- break;
- case GL_LUMINANCE_ALPHA32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32);
- break;
- case GL_INTENSITY16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16);
- break;
- case GL_INTENSITY32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32);
- break;
- case GL_RGB16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16);
- break;
- case GL_RGB32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32);
- break;
- case GL_RGBA16F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
- break;
- case GL_RGBA32F_ARB:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
- break;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_packed_depth_stencil) {
- switch (internalFormat) {
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
- break;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ATI_envmap_bumpmap) {
- switch (internalFormat) {
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8);
- break;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.MESA_texture_signed_rgba) {
- switch (internalFormat) {
- case GL_RGBA_SNORM:
- case GL_RGBA8_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV);
- break;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->VersionMajor * 10 + ctx->VersionMinor >= 31) {
- switch (internalFormat) {
- case GL_RED_SNORM:
- case GL_R8_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8);
- break;
- case GL_RG_SNORM:
- case GL_RG8_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88);
- break;
- case GL_RGB_SNORM:
- case GL_RGB8_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888);
- break;
- case GL_RGBA_SNORM:
- case GL_RGBA8_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
- break;
- case GL_R16_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R_16);
- break;
- case GL_RG16_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_16);
- break;
- case GL_RGB16_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16);
- break;
- case GL_RGBA16_SNORM:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16);
- break;
- default:
- ; /* fall-through */
- }
- }
-
-#if FEATURE_EXT_texture_sRGB
- if (ctx->Extensions.EXT_texture_sRGB) {
- switch (internalFormat) {
- case GL_SRGB_EXT:
- case GL_SRGB8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_SRGB_ALPHA_EXT:
- case GL_SRGB8_ALPHA8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_SLUMINANCE_EXT:
- case GL_SLUMINANCE8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_SLUMINANCE_ALPHA_EXT:
- case GL_SLUMINANCE8_ALPHA8_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SLUMINANCE_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SRGB_EXT:
-#if FEATURE_texture_s3tc
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
-#endif
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SRGB_ALPHA_EXT:
-#if FEATURE_texture_s3tc
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */
-#endif
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
-#if FEATURE_texture_s3tc
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- if (ctx->Extensions.EXT_texture_compression_s3tc)
- RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5);
- RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
- break;
-#endif
- default:
- ; /* fallthrough */
- }
- }
-#endif /* FEATURE_EXT_texture_sRGB */
-
- if (ctx->Extensions.EXT_texture_integer) {
- switch (internalFormat) {
- case GL_RGBA32UI_EXT:
- case GL_RGB32UI_EXT:
- case GL_ALPHA32UI_EXT:
- case GL_INTENSITY32UI_EXT:
- case GL_LUMINANCE32UI_EXT:
- case GL_LUMINANCE_ALPHA32UI_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
- break;
- case GL_RGBA16UI_EXT:
- case GL_RGB16UI_EXT:
- case GL_ALPHA16UI_EXT:
- case GL_INTENSITY16UI_EXT:
- case GL_LUMINANCE16UI_EXT:
- case GL_LUMINANCE_ALPHA16UI_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
- break;
- case GL_RGBA8UI_EXT:
- case GL_RGB8UI_EXT:
- case GL_ALPHA8UI_EXT:
- case GL_INTENSITY8UI_EXT:
- case GL_LUMINANCE8UI_EXT:
- case GL_LUMINANCE_ALPHA8UI_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
- break;
- case GL_RGBA32I_EXT:
- case GL_RGB32I_EXT:
- case GL_ALPHA32I_EXT:
- case GL_INTENSITY32I_EXT:
- case GL_LUMINANCE32I_EXT:
- case GL_LUMINANCE_ALPHA32I_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32);
- break;
- case GL_RGBA16I_EXT:
- case GL_RGB16I_EXT:
- case GL_ALPHA16I_EXT:
- case GL_INTENSITY16I_EXT:
- case GL_LUMINANCE16I_EXT:
- case GL_LUMINANCE_ALPHA16I_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16);
- break;
- case GL_RGBA8I_EXT:
- case GL_RGB8I_EXT:
- case GL_ALPHA8I_EXT:
- case GL_INTENSITY8I_EXT:
- case GL_LUMINANCE8I_EXT:
- case GL_LUMINANCE_ALPHA8I_EXT:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8);
- break;
- }
- }
-
- if (ctx->Extensions.ARB_texture_rg) {
- switch (internalFormat) {
- case GL_R8:
- case GL_RED:
- case GL_COMPRESSED_RED:
- RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
- break;
-
- case GL_R16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_R16);
- break;
-
- case GL_RG:
- case GL_RG8:
- case GL_COMPRESSED_RG:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
- break;
-
- case GL_RG16:
- RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616);
- break;
-
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_format_BGRA8888) {
- switch (internalFormat) {
- case GL_BGRA:
- RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
- break;
-
- default:
- ; /* fallthrough */
- }
- }
-
- _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
- return MESA_FORMAT_NONE;
-}
-
+/*
+ * 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 texformat.c
+ * Texture formats.
+ *
+ * \author Gareth Hughes
+ * \author Brian Paul
+ */
+
+
+#include "context.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "texcompress.h"
+#include "texformat.h"
+
+#define RETURN_IF_SUPPORTED(f) do { \
+ if (ctx->TextureFormatSupported[f]) \
+ return f; \
+} while (0)
+
+/**
+ * Choose an appropriate texture format given the format, type and
+ * internalFormat parameters passed to glTexImage().
+ *
+ * \param ctx the GL context.
+ * \param internalFormat user's prefered internal texture format.
+ * \param format incoming image pixel format.
+ * \param type incoming image data type.
+ *
+ * \return a pointer to a gl_texture_format object which describes the
+ * choosen texture format, or NULL on failure.
+ *
+ * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
+ * will typically override this function with a specialized version.
+ */
+gl_format
+_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ (void) format;
+ (void) type;
+
+ switch (internalFormat) {
+ /* shallow RGBA formats */
+ case 4:
+ case GL_RGBA:
+ if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
+ }
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ case GL_RGBA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGB5_A1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
+ break;
+ case GL_RGBA2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ break;
+ case GL_RGBA4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ break;
+
+ /* deep RGBA formats */
+ case GL_RGB10_A2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGBA12:
+ case GL_RGBA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ /* shallow RGB formats */
+ case 3:
+ case GL_RGB:
+ case GL_RGB8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_R3_G3_B2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGB4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
+ break;
+ case GL_RGB5:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
+ break;
+
+ /* deep RGB formats */
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ /* Alpha formats */
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+
+ /* Luminance formats */
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+
+ /* Luminance/Alpha formats */
+ case GL_LUMINANCE4_ALPHA4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL44);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_CI8);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ break;
+ case GL_DEPTH_COMPONENT16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+ case GL_COMPRESSED_INTENSITY_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+ case GL_COMPRESSED_RGB_ARB:
+ if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_COMPRESSED_RGBA_ARB:
+ if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA) {
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR);
+ else
+ RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV);
+ }
+ }
+
+#if FEATURE_texture_fxt1
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
+ break;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif
+
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ break;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16);
+ break;
+ case GL_ALPHA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32);
+ break;
+ case GL_LUMINANCE16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16);
+ break;
+ case GL_LUMINANCE32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32);
+ break;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16);
+ break;
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32);
+ break;
+ case GL_INTENSITY16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16);
+ break;
+ case GL_INTENSITY32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32);
+ break;
+ case GL_RGB16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16);
+ break;
+ case GL_RGB32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32);
+ break;
+ case GL_RGBA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
+ break;
+ case GL_RGBA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_envmap_bumpmap) {
+ switch (internalFormat) {
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_texture_signed_rgba) {
+ switch (internalFormat) {
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->VersionMajor * 10 + ctx->VersionMinor >= 31) {
+ switch (internalFormat) {
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8);
+ break;
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88);
+ break;
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888);
+ break;
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
+ break;
+ case GL_R16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R_16);
+ break;
+ case GL_RG16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_16);
+ break;
+ case GL_RGB16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16);
+ break;
+ case GL_RGBA16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16);
+ break;
+ default:
+ ; /* fall-through */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
+#endif
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */
+#endif
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+#if FEATURE_texture_s3tc
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+#endif
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
+ break;
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
+ break;
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
+ break;
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32);
+ break;
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16);
+ break;
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8);
+ break;
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R8:
+ case GL_RED:
+ case GL_COMPRESSED_RED:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
+ break;
+
+ case GL_R16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R16);
+ break;
+
+ case GL_RG:
+ case GL_RG8:
+ case GL_COMPRESSED_RG:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
+ break;
+
+ case GL_RG16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_format_BGRA8888) {
+ switch (internalFormat) {
+ case GL_BGRA:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2);
+ break;
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
+ return MESA_FORMAT_NONE;
+}
+
diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
index 1947d32e6..60ded5852 100644
--- a/mesalib/src/mesa/main/texstore.c
+++ b/mesalib/src/mesa/main/texstore.c
@@ -65,6 +65,7 @@
#include "pack.h"
#include "texcompress.h"
#include "texcompress_fxt1.h"
+#include "texcompress_rgtc.h"
#include "texcompress_s3tc.h"
#include "teximage.h"
#include "texstore.h"
@@ -310,15 +311,15 @@ compute_component_mapping(GLenum inFormat, GLenum outFormat,
* \param srcPacking source image pixel packing
* \return resulting image with format = textureBaseFormat and type = GLfloat.
*/
-static GLfloat *
-make_temp_float_image(struct gl_context *ctx, GLuint dims,
- GLenum logicalBaseFormat,
- GLenum textureBaseFormat,
- GLint srcWidth, GLint srcHeight, GLint srcDepth,
- GLenum srcFormat, GLenum srcType,
- const GLvoid *srcAddr,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps)
+GLfloat *
+_mesa_make_temp_float_image(struct gl_context *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps)
{
GLfloat *tempImage;
const GLint components = _mesa_components_in_format(logicalBaseFormat);
@@ -2065,7 +2066,7 @@ _mesa_texstore_argb2101010(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2317,7 +2318,7 @@ _mesa_texstore_unorm1616(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2394,7 +2395,7 @@ _mesa_texstore_unorm16(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2452,7 +2453,7 @@ _mesa_texstore_rgba_16(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2519,7 +2520,7 @@ _mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2901,7 +2902,7 @@ _mesa_texstore_signed_r8(TEXSTORE_PARAMS)
/* XXX look at adding optimized paths */
{
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2946,7 +2947,7 @@ _mesa_texstore_signed_rg88(TEXSTORE_PARAMS)
/* XXX look at adding optimized paths */
{
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -2991,7 +2992,7 @@ _mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS)
{
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3104,7 +3105,7 @@ _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3413,7 +3414,7 @@ _mesa_texstore_rgba_float32(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3483,7 +3484,7 @@ _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3549,7 +3550,7 @@ _mesa_texstore_rgba_int8(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3614,7 +3615,7 @@ _mesa_texstore_rgba_int16(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -3679,7 +3680,7 @@ _mesa_texstore_rgba_int32(TEXSTORE_PARAMS)
}
else {
/* general path */
- const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
baseInternalFormat,
baseFormat,
srcWidth, srcHeight, srcDepth,
@@ -4128,7 +4129,12 @@ texstore_funcs[MESA_FORMAT_COUNT] =
{ MESA_FORMAT_SIGNED_RG_16, _mesa_texstore_signed_rgba_16 },
{ MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 },
{ MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 },
- { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }
+ { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 },
+
+ { MESA_FORMAT_RED_RGTC1, _mesa_texstore_red_rgtc1 },
+ { MESA_FORMAT_SIGNED_RED_RGTC1, _mesa_texstore_signed_red_rgtc1 },
+ { MESA_FORMAT_RG_RGTC2, _mesa_texstore_rg_rgtc2 },
+ { MESA_FORMAT_SIGNED_RG_RGTC2, _mesa_texstore_signed_rg_rgtc2 }
};
diff --git a/mesalib/src/mesa/main/texstore.h b/mesalib/src/mesa/main/texstore.h
index 8640a23a7..35339da77 100644
--- a/mesalib/src/mesa/main/texstore.h
+++ b/mesalib/src/mesa/main/texstore.h
@@ -81,6 +81,15 @@ _mesa_make_temp_chan_image(struct gl_context *ctx, GLuint dims,
const GLvoid *srcAddr,
const struct gl_pixelstore_attrib *srcPacking);
+GLfloat *
+_mesa_make_temp_float_image(struct gl_context *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps);
extern void
_mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 19:25:58 +0000