* GL_EXT_texture_compression_s3tc support.
*/
-#ifndef USE_EXTERNAL_DXTN_LIB
-#define USE_EXTERNAL_DXTN_LIB 1
-#endif
-
#include "glheader.h"
-#include "imports.h"
-#include "colormac.h"
-#include "dlopen.h"
+
#include "image.h"
#include "macros.h"
#include "mtypes.h"
#include "texcompress.h"
#include "texcompress_s3tc.h"
+#include "texcompress_s3tc_tmp.h"
#include "texstore.h"
#include "format_unpack.h"
#include "util/format_srgb.h"
-#if defined(_WIN32) || defined(WIN32)
-#define DXTN_LIBNAME "dxtn.dll"
-#define RTLD_LAZY 0
-#define RTLD_GLOBAL 0
-#else
-#define DXTN_LIBNAME "libtxc_dxtn.so"
-#endif
-
-typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, const GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
-
-static dxtFetchTexelFuncExt fetch_ext_rgb_dxt1 = NULL;
-static dxtFetchTexelFuncExt fetch_ext_rgba_dxt1 = NULL;
-static dxtFetchTexelFuncExt fetch_ext_rgba_dxt3 = NULL;
-static dxtFetchTexelFuncExt fetch_ext_rgba_dxt5 = NULL;
-
-typedef void (*dxtCompressTexFuncExt)(GLint srccomps, GLint width,
- GLint height, const GLubyte *srcPixData,
- GLenum destformat, GLubyte *dest,
- GLint dstRowStride);
-
-static dxtCompressTexFuncExt ext_tx_compress_dxtn = NULL;
-
-static void *dxtlibhandle = NULL;
-
-
-void
-_mesa_init_texture_s3tc( struct gl_context *ctx )
-{
- /* called during context initialization */
- ctx->Mesa_DXTn = GL_FALSE;
-#if USE_EXTERNAL_DXTN_LIB
- if (!dxtlibhandle) {
- dxtlibhandle = _mesa_dlopen(DXTN_LIBNAME, 0);
- if (!dxtlibhandle) {
- _mesa_warning(ctx, "couldn't open " DXTN_LIBNAME ", software DXTn "
- "compression/decompression unavailable");
- }
- else {
- /* the fetch functions are not per context! Might be problematic... */
- fetch_ext_rgb_dxt1 = (dxtFetchTexelFuncExt)
- _mesa_dlsym(dxtlibhandle, "fetch_2d_texel_rgb_dxt1");
- fetch_ext_rgba_dxt1 = (dxtFetchTexelFuncExt)
- _mesa_dlsym(dxtlibhandle, "fetch_2d_texel_rgba_dxt1");
- fetch_ext_rgba_dxt3 = (dxtFetchTexelFuncExt)
- _mesa_dlsym(dxtlibhandle, "fetch_2d_texel_rgba_dxt3");
- fetch_ext_rgba_dxt5 = (dxtFetchTexelFuncExt)
- _mesa_dlsym(dxtlibhandle, "fetch_2d_texel_rgba_dxt5");
- ext_tx_compress_dxtn = (dxtCompressTexFuncExt)
- _mesa_dlsym(dxtlibhandle, "tx_compress_dxtn");
-
- if (!fetch_ext_rgb_dxt1 ||
- !fetch_ext_rgba_dxt1 ||
- !fetch_ext_rgba_dxt3 ||
- !fetch_ext_rgba_dxt5 ||
- !ext_tx_compress_dxtn) {
- _mesa_warning(ctx, "couldn't reference all symbols in "
- DXTN_LIBNAME ", software DXTn compression/decompression "
- "unavailable");
- fetch_ext_rgb_dxt1 = NULL;
- fetch_ext_rgba_dxt1 = NULL;
- fetch_ext_rgba_dxt3 = NULL;
- fetch_ext_rgba_dxt5 = NULL;
- ext_tx_compress_dxtn = NULL;
- _mesa_dlclose(dxtlibhandle);
- dxtlibhandle = NULL;
- }
- }
- }
- if (dxtlibhandle) {
- ctx->Mesa_DXTn = GL_TRUE;
- }
-#else
- (void) ctx;
-#endif
-}
-
/**
* Store user's image in rgb_dxt1 format.
*/
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGB_DXT1 ||
+ assert(dstFormat == MESA_FORMAT_RGB_DXT1 ||
dstFormat == MESA_FORMAT_SRGB_DXT1);
if (srcFormat != GL_RGB ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
- srcPacking->RowLength != srcWidth ||
+ ALIGN(srcPacking->RowLength, srcPacking->Alignment) != srcWidth ||
srcPacking->SwapBytes) {
/* convert image to RGB/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbRowStride = 3 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 3 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ MESA_FORMAT_RGB_UNORM8,
+ rgbRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
srcFormat = GL_RGB;
}
dst = dstSlices[0];
- if (ext_tx_compress_dxtn) {
- (*ext_tx_compress_dxtn)(3, srcWidth, srcHeight, pixels,
- GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
- dst, dstRowStride);
- }
- else {
- _mesa_warning(ctx, "external dxt library not available: texstore_rgb_dxt1");
- }
+ tx_compress_dxtn(3, srcWidth, srcHeight, pixels,
+ GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
+ dst, dstRowStride);
free((void *) tempImage);
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGBA_DXT1 ||
+ assert(dstFormat == MESA_FORMAT_RGBA_DXT1 ||
dstFormat == MESA_FORMAT_SRGBA_DXT1);
if (srcFormat != GL_RGBA ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
- srcPacking->RowLength != srcWidth ||
+ ALIGN(srcPacking->RowLength, srcPacking->Alignment) != srcWidth ||
srcPacking->SwapBytes) {
/* convert image to RGBA/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbaRowStride = 4 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 4 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+#if UTIL_ARCH_LITTLE_ENDIAN
+ MESA_FORMAT_R8G8B8A8_UNORM,
+#else
+ MESA_FORMAT_A8B8G8R8_UNORM,
+#endif
+ rgbaRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
srcFormat = GL_RGBA;
}
dst = dstSlices[0];
- if (ext_tx_compress_dxtn) {
- (*ext_tx_compress_dxtn)(4, srcWidth, srcHeight, pixels,
- GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
- dst, dstRowStride);
- }
- else {
- _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt1");
- }
+ tx_compress_dxtn(4, srcWidth, srcHeight, pixels,
+ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
+ dst, dstRowStride);
free((void*) tempImage);
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGBA_DXT3 ||
+ assert(dstFormat == MESA_FORMAT_RGBA_DXT3 ||
dstFormat == MESA_FORMAT_SRGBA_DXT3);
if (srcFormat != GL_RGBA ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
- srcPacking->RowLength != srcWidth ||
+ ALIGN(srcPacking->RowLength, srcPacking->Alignment) != srcWidth ||
srcPacking->SwapBytes) {
/* convert image to RGBA/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbaRowStride = 4 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 4 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+#if UTIL_ARCH_LITTLE_ENDIAN
+ MESA_FORMAT_R8G8B8A8_UNORM,
+#else
+ MESA_FORMAT_A8B8G8R8_UNORM,
+#endif
+ rgbaRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
}
else {
dst = dstSlices[0];
- if (ext_tx_compress_dxtn) {
- (*ext_tx_compress_dxtn)(4, srcWidth, srcHeight, pixels,
- GL_COMPRESSED_RGBA_S3TC_DXT3_EXT,
- dst, dstRowStride);
- }
- else {
- _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt3");
- }
+ tx_compress_dxtn(4, srcWidth, srcHeight, pixels,
+ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT,
+ dst, dstRowStride);
free((void *) tempImage);
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGBA_DXT5 ||
+ assert(dstFormat == MESA_FORMAT_RGBA_DXT5 ||
dstFormat == MESA_FORMAT_SRGBA_DXT5);
if (srcFormat != GL_RGBA ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
- srcPacking->RowLength != srcWidth ||
+ ALIGN(srcPacking->RowLength, srcPacking->Alignment) != srcWidth ||
srcPacking->SwapBytes) {
/* convert image to RGBA/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbaRowStride = 4 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 4 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+#if UTIL_ARCH_LITTLE_ENDIAN
+ MESA_FORMAT_R8G8B8A8_UNORM,
+#else
+ MESA_FORMAT_A8B8G8R8_UNORM,
+#endif
+ rgbaRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
}
else {
dst = dstSlices[0];
- if (ext_tx_compress_dxtn) {
- (*ext_tx_compress_dxtn)(4, srcWidth, srcHeight, pixels,
- GL_COMPRESSED_RGBA_S3TC_DXT5_EXT,
- dst, dstRowStride);
- }
- else {
- _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt5");
- }
+ tx_compress_dxtn(4, srcWidth, srcHeight, pixels,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT,
+ dst, dstRowStride);
free((void *) tempImage);
}
-/** Report problem with dxt texture decompression, once */
-static void
-problem(const char *func)
-{
- static GLboolean warned = GL_FALSE;
- if (!warned) {
- _mesa_debug(NULL, "attempted to decode DXT texture without "
- "library available: %s\n", func);
- warned = GL_TRUE;
- }
-}
-
-
static void
fetch_rgb_dxt1(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgb_dxt1) {
- GLubyte tex[4];
- fetch_ext_rgb_dxt1(rowStride, map, i, j, tex);
- texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("rgb_dxt1");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgb_dxt1(rowStride, map, i, j, tex);
+ texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_rgba_dxt1(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt1) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt1(rowStride, map, i, j, tex);
- texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("rgba_dxt1");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt1(rowStride, map, i, j, tex);
+ texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_rgba_dxt3(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt3) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt3(rowStride, map, i, j, tex);
- texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("rgba_dxt3");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt3(rowStride, map, i, j, tex);
+ texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_rgba_dxt5(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt5) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt5(rowStride, map, i, j, tex);
- texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("rgba_dxt5");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt5(rowStride, map, i, j, tex);
+ texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
fetch_srgb_dxt1(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgb_dxt1) {
- GLubyte tex[4];
- fetch_ext_rgb_dxt1(rowStride, map, i, j, tex);
- texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
- texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
- texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("srgb_dxt1");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgb_dxt1(rowStride, map, i, j, tex);
+ texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
+ texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
+ texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_srgba_dxt1(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt1) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt1(rowStride, map, i, j, tex);
- texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
- texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
- texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("srgba_dxt1");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt1(rowStride, map, i, j, tex);
+ texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
+ texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
+ texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_srgba_dxt3(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt3) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt3(rowStride, map, i, j, tex);
- texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
- texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
- texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("srgba_dxt3");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt3(rowStride, map, i, j, tex);
+ texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
+ texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
+ texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
static void
fetch_srgba_dxt5(const GLubyte *map,
GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
- if (fetch_ext_rgba_dxt5) {
- GLubyte tex[4];
- fetch_ext_rgba_dxt5(rowStride, map, i, j, tex);
- texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
- texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
- texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
- }
- else {
- problem("srgba_dxt5");
- }
+ GLubyte tex[4];
+ fetch_2d_texel_rgba_dxt5(rowStride, map, i, j, tex);
+ texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(tex[RCOMP]);
+ texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(tex[GCOMP]);
+ texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
}
projects / mesa.git / blobdiff