* 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
+ * THE AUTHORS 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.
*/
#include "dlopen.h"
#include "image.h"
#include "macros.h"
-#include "mfeatures.h"
#include "mtypes.h"
#include "texcompress.h"
#include "texcompress_s3tc.h"
#include "texstore.h"
-#include "swrast/s_context.h"
-
-
-#if FEATURE_texture_s3tc
+#include "format_unpack.h"
#if defined(_WIN32) || defined(WIN32)
#define DXTN_LIBNAME "libtxc_dxtn.so"
#endif
-#if FEATURE_EXT_texture_sRGB
-/**
- * Convert an 8-bit sRGB value from non-linear space to a
- * linear RGB value in [0, 1].
- * Implemented with a 256-entry lookup table.
- */
-static inline GLfloat
-nonlinear_to_linear(GLubyte cs8)
-{
- static GLfloat table[256];
- static GLboolean tableReady = GL_FALSE;
- if (!tableReady) {
- /* compute lookup table now */
- GLuint i;
- for (i = 0; i < 256; i++) {
- const GLfloat cs = UBYTE_TO_FLOAT(i);
- if (cs <= 0.04045) {
- table[i] = cs / 12.92f;
- }
- else {
- table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4);
- }
- }
- tableReady = GL_TRUE;
- }
- return table[cs8];
-}
-#endif /* FEATURE_EXT_texture_sRGB */
-
-typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
+typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, const GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
-dxtFetchTexelFuncExt fetch_ext_rgb_dxt1 = NULL;
-dxtFetchTexelFuncExt fetch_ext_rgba_dxt1 = NULL;
-dxtFetchTexelFuncExt fetch_ext_rgba_dxt3 = NULL;
-dxtFetchTexelFuncExt fetch_ext_rgba_dxt5 = NULL;
+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,
_mesa_warning(ctx, "external dxt library not available: texstore_rgb_dxt1");
}
- if (tempImage)
- free((void *) tempImage);
+ free((void *) tempImage);
return GL_TRUE;
}
_mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt1");
}
- if (tempImage)
- free((void*) tempImage);
+ free((void*) tempImage);
return GL_TRUE;
}
_mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt3");
}
- if (tempImage)
- free((void *) tempImage);
+ free((void *) tempImage);
return GL_TRUE;
}
_mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt5");
}
- if (tempImage)
- free((void *) tempImage);
+ free((void *) tempImage);
return GL_TRUE;
}
+/** Report problem with dxt texture decompression, once */
static void
-fetch_texel_2d_rgb_dxt1( const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLubyte *texel )
+problem(const char *func)
{
- (void) k;
- if (fetch_ext_rgb_dxt1) {
- fetch_ext_rgb_dxt1(texImage->RowStride,
- texImage->Data, i, j, texel);
+ static GLboolean warned = GL_FALSE;
+ if (!warned) {
+ _mesa_debug(NULL, "attempted to decode DXT texture without "
+ "library available: %s\n", func);
+ warned = GL_TRUE;
}
- else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgb_dxt1");
}
-void
-_mesa_fetch_texel_2d_f_rgb_dxt1(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_rgb_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgb_dxt1(texImage, i, j, k, rgba);
- texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ if (fetch_ext_rgb_dxt1) {
+ GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+ GLubyte tex[4];
+ fetch_ext_rgb_dxt1(rowStride, map + sliceOffset, 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");
+ }
}
-
static void
-fetch_texel_2d_rgba_dxt1( const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLubyte *texel )
+fetch_rgba_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- (void) k;
if (fetch_ext_rgba_dxt1) {
- fetch_ext_rgba_dxt1(texImage->RowStride,
- texImage->Data, i, j, texel);
+ GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt1(rowStride, map + sliceOffset, 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");
}
- else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt1\n");
-}
-
-
-void
-_mesa_fetch_texel_2d_f_rgba_dxt1(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
-{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt1(texImage, i, j, k, rgba);
- texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
}
-
static void
-fetch_texel_2d_rgba_dxt3( const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLubyte *texel )
+fetch_rgba_dxt3(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- (void) k;
if (fetch_ext_rgba_dxt3) {
- fetch_ext_rgba_dxt3(texImage->RowStride,
- texImage->Data, i, j, texel);
+ GLuint sliceOffset = k ? imageOffsets[k] : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt3(rowStride, map + sliceOffset, 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");
}
- else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt3\n");
-}
-
-
-void
-_mesa_fetch_texel_2d_f_rgba_dxt3(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
-{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
- texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
}
-
static void
-fetch_texel_2d_rgba_dxt5( const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLubyte *texel )
+fetch_rgba_dxt5(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- (void) k;
if (fetch_ext_rgba_dxt5) {
- fetch_ext_rgba_dxt5(texImage->RowStride,
- texImage->Data, i, j, texel);
+ GLuint sliceOffset = k ? imageOffsets[k] : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt5(rowStride, map + sliceOffset, 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");
}
- else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt5\n");
}
-void
-_mesa_fetch_texel_2d_f_rgba_dxt5(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_srgb_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt5(texImage, i, j, k, rgba);
- texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ if (fetch_ext_rgb_dxt1) {
+ GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+ GLubyte tex[4];
+ fetch_ext_rgb_dxt1(rowStride, map + sliceOffset, i, j, tex);
+ texel[RCOMP] = _mesa_nonlinear_to_linear(tex[RCOMP]);
+ texel[GCOMP] = _mesa_nonlinear_to_linear(tex[GCOMP]);
+ texel[BCOMP] = _mesa_nonlinear_to_linear(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+ }
+ else {
+ problem("srgb_dxt1");
+ }
}
-#if FEATURE_EXT_texture_sRGB
-void
-_mesa_fetch_texel_2d_f_srgb_dxt1( const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
+static void
+fetch_srgba_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgb_dxt1(texImage, i, j, k, rgba);
- texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ if (fetch_ext_rgba_dxt1) {
+ GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt1(rowStride, map + sliceOffset, i, j, tex);
+ texel[RCOMP] = _mesa_nonlinear_to_linear(tex[RCOMP]);
+ texel[GCOMP] = _mesa_nonlinear_to_linear(tex[GCOMP]);
+ texel[BCOMP] = _mesa_nonlinear_to_linear(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+ }
+ else {
+ problem("srgba_dxt1");
+ }
}
-void
-_mesa_fetch_texel_2d_f_srgba_dxt1(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_srgba_dxt3(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt1(texImage, i, j, k, rgba);
- texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ if (fetch_ext_rgba_dxt3) {
+ GLuint sliceOffset = k ? imageOffsets[k] : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt3(rowStride, map + sliceOffset, i, j, tex);
+ texel[RCOMP] = _mesa_nonlinear_to_linear(tex[RCOMP]);
+ texel[GCOMP] = _mesa_nonlinear_to_linear(tex[GCOMP]);
+ texel[BCOMP] = _mesa_nonlinear_to_linear(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+ }
+ else {
+ problem("srgba_dxt3");
+ }
}
-void
-_mesa_fetch_texel_2d_f_srgba_dxt3(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_srgba_dxt5(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
- texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ if (fetch_ext_rgba_dxt5) {
+ GLuint sliceOffset = k ? imageOffsets[k] : 0;
+ GLubyte tex[4];
+ fetch_ext_rgba_dxt5(rowStride, map + sliceOffset, i, j, tex);
+ texel[RCOMP] = _mesa_nonlinear_to_linear(tex[RCOMP]);
+ texel[GCOMP] = _mesa_nonlinear_to_linear(tex[GCOMP]);
+ texel[BCOMP] = _mesa_nonlinear_to_linear(tex[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+ }
+ else {
+ problem("srgba_dxt5");
+ }
}
-void
-_mesa_fetch_texel_2d_f_srgba_dxt5(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
-{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt5(texImage, i, j, k, rgba);
- texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-#endif /* FEATURE_EXT_texture_sRGB */
-#endif /* FEATURE_texture_s3tc */
+compressed_fetch_func
+_mesa_get_dxt_fetch_func(gl_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_RGB_DXT1:
+ return fetch_rgb_dxt1;
+ case MESA_FORMAT_RGBA_DXT1:
+ return fetch_rgba_dxt1;
+ case MESA_FORMAT_RGBA_DXT3:
+ return fetch_rgba_dxt3;
+ case MESA_FORMAT_RGBA_DXT5:
+ return fetch_rgba_dxt5;
+ case MESA_FORMAT_SRGB_DXT1:
+ return fetch_srgb_dxt1;
+ case MESA_FORMAT_SRGBA_DXT1:
+ return fetch_srgba_dxt1;
+ case MESA_FORMAT_SRGBA_DXT3:
+ return fetch_srgba_dxt3;
+ case MESA_FORMAT_SRGBA_DXT5:
+ return fetch_srgba_dxt5;
+ default:
+ return NULL;
+ }
+}
projects / mesa.git / blobdiff