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Diffstat (limited to 'mesalib/src/mesa/main/texcompress_s3tc.c')
-rw-r--r--mesalib/src/mesa/main/texcompress_s3tc.c207
1 files changed, 73 insertions, 134 deletions
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.c b/mesalib/src/mesa/main/texcompress_s3tc.c
index 476b998e0..23a5a0868 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.c
+++ b/mesalib/src/mesa/main/texcompress_s3tc.c
@@ -44,7 +44,6 @@
#include "texcompress.h"
#include "texcompress_s3tc.h"
#include "texstore.h"
-#include "swrast/s_context.h"
#include "format_unpack.h"
@@ -58,7 +57,7 @@
#define DXTN_LIBNAME "libtxc_dxtn.so"
#endif
-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 );
static dxtFetchTexelFuncExt fetch_ext_rgb_dxt1 = NULL;
static dxtFetchTexelFuncExt fetch_ext_rgba_dxt1 = NULL;
@@ -332,165 +331,105 @@ _mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS)
}
+/** 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)
{
- if (fetch_ext_rgb_dxt1) {
- GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
- fetch_ext_rgb_dxt1(texImage->RowStride,
- texImage->Map + sliceOffset, 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_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)
{
if (fetch_ext_rgba_dxt1) {
- GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
- fetch_ext_rgba_dxt1(texImage->RowStride,
- texImage->Map + sliceOffset, 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_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)
{
if (fetch_ext_rgba_dxt3) {
- GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
- fetch_ext_rgba_dxt3(texImage->RowStride,
- texImage->Map + sliceOffset, 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_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)
{
if (fetch_ext_rgba_dxt5) {
- GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
- fetch_ext_rgba_dxt5(texImage->RowStride,
- texImage->Map + sliceOffset, 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_rgba_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] = 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]);
-}
-
-void
-_mesa_fetch_texel_srgb_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_rgb_dxt1(texImage, i, j, k, rgba);
- texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
}
-void
-_mesa_fetch_texel_srgba_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] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-void
-_mesa_fetch_texel_srgba_dxt3(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+compressed_fetch_func
+_mesa_get_dxt_fetch_func(gl_format format)
{
- /* just sample as GLubyte and convert to float here */
- GLubyte rgba[4];
- fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
- texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-
-void
-_mesa_fetch_texel_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] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
- texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
- texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
- texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+ 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;
+ default:
+ return NULL;
+ }
}
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