/*
* Copyright (C) 2011 Red Hat Inc.
- *
+ *
* block compression parts are:
* Copyright (C) 2004 Roland Scheidegger All Rights Reserved.
*
* GL_EXT_texture_compression_rgtc support.
*/
+#include <stdlib.h>
+#include "config.h"
#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 "util/rgtc.h"
#include "texcompress_rgtc.h"
#include "texstore.h"
-#define RGTC_DEBUG 0
-
-static void unsigned_encode_rgtc_chan(GLubyte *blkaddr, GLubyte srccolors[4][4],
- GLint numxpixels, GLint numypixels);
-static void signed_encode_rgtc_chan(GLbyte *blkaddr, GLbyte srccolors[4][4],
- GLint numxpixels, GLint numypixels);
-
-static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata,
- unsigned i, unsigned j, GLubyte *value, unsigned comps);
-
-static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata,
- unsigned i, unsigned j, GLbyte *value, unsigned comps);
-
-static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr,
+static void extractsrc_u( GLubyte srcpixels[4][4], const GLubyte *srcaddr,
GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
{
GLubyte i, j;
- const GLchan *curaddr;
+ const GLubyte *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);
+ srcpixels[j][i] = *curaddr;
curaddr += comps;
}
}
_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
{
GLubyte *dst;
- const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
- const GLchan *tempImage = NULL;
+ const GLubyte *tempImage = NULL;
int i, j;
int numxpixels, numypixels;
- const GLchan *srcaddr;
+ const GLubyte *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);
+ GLint dstRowDiff, redRowStride;
+ GLubyte *tempImageSlices[1];
+
+ assert(dstFormat == MESA_FORMAT_R_RGTC1_UNORM ||
+ dstFormat == MESA_FORMAT_L_LATC1_UNORM);
+
+ tempImage = malloc(srcWidth * srcHeight * 1 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
-
- dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ redRowStride = 1 * srcWidth * sizeof(GLubyte);
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ MESA_FORMAT_R_UNORM8,
+ redRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+
+ dst = dstSlices[0];
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
for (j = 0; j < srcHeight; j+=4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
if (srcWidth > i + 3) numxpixels = 4;
else numxpixels = srcWidth - i;
extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
- unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
srcaddr += numxpixels;
blkaddr += 8;
}
blkaddr += dstRowDiff;
}
- if (tempImage)
- free((void *) tempImage);
+
+ free((void *) tempImage);
return GL_TRUE;
}
_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);
+ GLint dstRowDiff, redRowStride;
+ GLfloat *tempImageSlices[1];
+
+ assert(dstFormat == MESA_FORMAT_R_RGTC1_SNORM ||
+ dstFormat == MESA_FORMAT_L_LATC1_SNORM);
+
+ redRowStride = 1 * srcWidth * sizeof(GLfloat);
+ tempImage = malloc(srcWidth * srcHeight * 1 * sizeof(GLfloat));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLfloat *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ MESA_FORMAT_R_FLOAT32,
+ redRowStride, (GLubyte **)tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
- dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ dst = (GLbyte *) dstSlices[0];
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
for (j = 0; j < srcHeight; j+=4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
if (srcWidth > i + 3) numxpixels = 4;
else numxpixels = srcWidth - i;
extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
- signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
srcaddr += numxpixels;
blkaddr += 8;
}
blkaddr += dstRowDiff;
}
- if (tempImage)
- free((void *) tempImage);
+
+ free((void *) tempImage);
return GL_TRUE;
}
_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
{
GLubyte *dst;
- const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
- const GLchan *tempImage = NULL;
+ const GLubyte *tempImage = NULL;
int i, j;
int numxpixels, numypixels;
- const GLchan *srcaddr;
+ const GLubyte *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);
+ GLint dstRowDiff, rgRowStride;
+ mesa_format tempFormat;
+ GLubyte *tempImageSlices[1];
+
+ assert(dstFormat == MESA_FORMAT_RG_RGTC2_UNORM ||
+ dstFormat == MESA_FORMAT_LA_LATC2_UNORM);
+
+ if (baseInternalFormat == GL_RG)
+ tempFormat = MESA_FORMAT_RG_UNORM8;
+ else
+ tempFormat = MESA_FORMAT_LA_UNORM8;
+
+ rgRowStride = 2 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 2 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ tempFormat,
+ rgRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
- dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ dst = dstSlices[0];
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ 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;
if (srcWidth > i + 3) numxpixels = 4;
else numxpixels = srcWidth - i;
extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
- unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
blkaddr += 8;
- extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
- unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ extractsrc_u(srcpixels, (GLubyte *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+ util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
blkaddr += 8;
}
blkaddr += dstRowDiff;
}
- if (tempImage)
- free((void *) tempImage);
+
+ free((void *) tempImage);
return GL_TRUE;
}
_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);
+ GLint dstRowDiff, rgRowStride;
+ mesa_format tempFormat;
+ GLfloat *tempImageSlices[1];
+
+ assert(dstFormat == MESA_FORMAT_RG_RGTC2_SNORM ||
+ dstFormat == MESA_FORMAT_LA_LATC2_SNORM);
+
+ if (baseInternalFormat == GL_RG)
+ tempFormat = MESA_FORMAT_RG_FLOAT32;
+ else
+ tempFormat = MESA_FORMAT_LA_FLOAT32;
+
+ rgRowStride = 2 * srcWidth * sizeof(GLfloat);
+ tempImage = malloc(srcWidth * srcHeight * 2 * sizeof(GLfloat));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLfloat *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ tempFormat,
+ rgRowStride, (GLubyte **)tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
- dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ dst = (GLbyte *) dstSlices[0];
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ 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;
else numxpixels = srcWidth - i;
extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
- signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
blkaddr += 8;
extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
- signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels);
blkaddr += 8;
srcaddr += numxpixels * 2;
}
blkaddr += dstRowDiff;
}
- if (tempImage)
- free((void *) tempImage);
+
+ free((void *) tempImage);
return GL_TRUE;
}
-void
-_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_red_rgtc1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
GLubyte red;
- unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
- i, j, &red, 1);
+ util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1);
texel[RCOMP] = UBYTE_TO_FLOAT(red);
texel[GCOMP] = 0.0;
texel[BCOMP] = 0.0;
texel[ACOMP] = 1.0;
}
-void
-_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_l_latc1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLubyte red;
+ util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = UBYTE_TO_FLOAT(red);
+ texel[ACOMP] = 1.0;
+}
+
+static void
+fetch_signed_red_rgtc1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
GLbyte red;
- signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
- i, j, &red, 1);
+ util_format_signed_fetch_texel_rgtc(rowStride, (const GLbyte *) map,
+ 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)
+static void
+fetch_signed_l_latc1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLbyte red;
+ util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map,
+ i, j, &red, 1);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = BYTE_TO_FLOAT(red);
+ texel[ACOMP] = 1.0;
+}
+
+static void
+fetch_rg_rgtc2(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
GLubyte red, green;
- unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
- i, j, &red, 2);
- unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
- i, j, &green, 2);
+ util_format_unsigned_fetch_texel_rgtc(rowStride,
+ map,
+ i, j, &red, 2);
+ util_format_unsigned_fetch_texel_rgtc(rowStride,
+ map + 8,
+ i, j, &green, 2);
texel[RCOMP] = UBYTE_TO_FLOAT(red);
texel[GCOMP] = UBYTE_TO_FLOAT(green);
texel[BCOMP] = 0.0;
texel[ACOMP] = 1.0;
}
-void
-_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_la_latc2(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLubyte red, green;
+ util_format_unsigned_fetch_texel_rgtc(rowStride,
+ map,
+ i, j, &red, 2);
+ util_format_unsigned_fetch_texel_rgtc(rowStride,
+ map + 8,
+ i, j, &green, 2);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = UBYTE_TO_FLOAT(red);
+ texel[ACOMP] = UBYTE_TO_FLOAT(green);
+}
+
+
+static void
+fetch_signed_rg_rgtc2(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
GLbyte red, green;
- signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
- i, j, &red, 2);
- signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
- i, j, &green, 2);
+ util_format_signed_fetch_texel_rgtc(rowStride,
+ (GLbyte *) map,
+ i, j, &red, 2);
+ util_format_signed_fetch_texel_rgtc(rowStride,
+ (GLbyte *) map + 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;
}
-#define TAG(x) unsigned_##x
-
-#define TYPE GLubyte
-#define T_MIN 0
-#define T_MAX 0xff
-
-#include "texcompress_rgtc_tmp.h"
-
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
-#define TAG(x) signed_##x
-#define TYPE GLbyte
-#define T_MIN (GLbyte)-128
-#define T_MAX (GLbyte)127
+static void
+fetch_signed_la_latc2(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLbyte red, green;
+ util_format_signed_fetch_texel_rgtc(rowStride,
+ (GLbyte *) map,
+ i, j, &red, 2);
+ util_format_signed_fetch_texel_rgtc(rowStride,
+ (GLbyte *) map + 8,
+ i, j, &green, 2);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[ACOMP] = BYTE_TO_FLOAT_TEX(green);
+}
-#include "texcompress_rgtc_tmp.h"
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
+compressed_fetch_func
+_mesa_get_compressed_rgtc_func(mesa_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_R_RGTC1_UNORM:
+ return fetch_red_rgtc1;
+ case MESA_FORMAT_L_LATC1_UNORM:
+ return fetch_l_latc1;
+ case MESA_FORMAT_R_RGTC1_SNORM:
+ return fetch_signed_red_rgtc1;
+ case MESA_FORMAT_L_LATC1_SNORM:
+ return fetch_signed_l_latc1;
+ case MESA_FORMAT_RG_RGTC2_UNORM:
+ return fetch_rg_rgtc2;
+ case MESA_FORMAT_LA_LATC2_UNORM:
+ return fetch_la_latc2;
+ case MESA_FORMAT_RG_RGTC2_SNORM:
+ return fetch_signed_rg_rgtc2;
+ case MESA_FORMAT_LA_LATC2_SNORM:
+ return fetch_signed_la_latc2;
+ default:
+ return NULL;
+ }
+}
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