diff options
Diffstat (limited to 'src/mesa/main/texcompress.c')
| -rw-r--r-- | src/mesa/main/texcompress.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/mesa/main/texcompress.c b/src/mesa/main/texcompress.c index 372a483..9ad6a8b 100644 --- a/src/mesa/main/texcompress.c +++ b/src/mesa/main/texcompress.c @@ -523,6 +523,39 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img, /** + * Return a texel-fetch function for the given format, or NULL if + * invalid format. + */ +compressed_fetch_func +_mesa_get_compressed_fetch_func(gl_format format) +{ + switch (format) { + case MESA_FORMAT_RGB_DXT1: + case MESA_FORMAT_RGBA_DXT1: + case MESA_FORMAT_RGBA_DXT3: + case MESA_FORMAT_RGBA_DXT5: + return _mesa_get_dxt_fetch_func(format); + case MESA_FORMAT_RGB_FXT1: + case MESA_FORMAT_RGBA_FXT1: + return _mesa_get_fxt_fetch_func(format); + case MESA_FORMAT_RED_RGTC1: + case MESA_FORMAT_L_LATC1: + case MESA_FORMAT_SIGNED_RED_RGTC1: + case MESA_FORMAT_SIGNED_L_LATC1: + case MESA_FORMAT_RG_RGTC2: + case MESA_FORMAT_LA_LATC2: + case MESA_FORMAT_SIGNED_RG_RGTC2: + case MESA_FORMAT_SIGNED_LA_LATC2: + return _mesa_get_compressed_rgtc_func(format); + case MESA_FORMAT_ETC1_RGB8: + return _mesa_get_etc_fetch_func(format); + default: + return NULL; + } +} + + +/** * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image. * \param srcRowStride stride in bytes between rows of blocks in the * compressed source image. |