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| author | marha <marha@users.sourceforge.net> | 2011-09-09 16:49:03 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-09-09 16:49:03 +0200 |
| commit | 05cf7dd22994a1dbfd3580b00690c01c392a5797 (patch) | |
| tree | ec1c29b5f8a67c54b13b44f1eb7aa700f91fef9e /mesalib/src/mesa/main/formats.c | |
| parent | 0947b921a3223c14322f10d83e71618d1724b734 (diff) | |
| parent | f9cf11136d65f20aab4fb6d5fc3ec3c59185a0b4 (diff) | |
| download | vcxsrv-05cf7dd22994a1dbfd3580b00690c01c392a5797.tar.gz vcxsrv-05cf7dd22994a1dbfd3580b00690c01c392a5797.tar.bz2 vcxsrv-05cf7dd22994a1dbfd3580b00690c01c392a5797.zip | |
Merge remote-tracking branch 'origin/released'
Conflicts:
mesalib/include/GL/internal/dri_interface.h
mesalib/scons/gallium.py
mesalib/src/glsl/ast_to_hir.cpp
mesalib/src/glsl/glsl_parser_extras.cpp
mesalib/src/glsl/ir_variable.cpp
mesalib/src/glsl/linker.cpp
mesalib/src/mesa/SConscript
mesalib/src/mesa/drivers/common/driverfuncs.c
mesalib/src/mesa/main/compiler.h
mesalib/src/mesa/main/formats.c
mesalib/src/mesa/main/formats.h
mesalib/src/mesa/main/texcompress.c
mesalib/src/mesa/main/texgetimage.c
mesalib/src/mesa/sources.mak
Diffstat (limited to 'mesalib/src/mesa/main/formats.c')
| -rw-r--r-- | mesalib/src/mesa/main/formats.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/formats.c b/mesalib/src/mesa/main/formats.c index fd16d98c5..47f876b76 100644 --- a/mesalib/src/mesa/main/formats.c +++ b/mesalib/src/mesa/main/formats.c @@ -1343,6 +1343,70 @@ _mesa_get_srgb_format_linear(gl_format format) /**
+ * If the given format is a compressed format, return a corresponding
+ * uncompressed format.
+ */
+gl_format
+_mesa_get_uncompressed_format(gl_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_RGB_FXT1:
+ return MESA_FORMAT_RGB888;
+ case MESA_FORMAT_RGBA_FXT1:
+ return MESA_FORMAT_RGBA8888;
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_SRGB_DXT1:
+ return MESA_FORMAT_RGB888;
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ return MESA_FORMAT_RGBA8888;
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT3:
+ return MESA_FORMAT_RGBA8888;
+ case MESA_FORMAT_RGBA_DXT5:
+ case MESA_FORMAT_SRGBA_DXT5:
+ return MESA_FORMAT_RGBA8888;
+ case MESA_FORMAT_RED_RGTC1:
+ return MESA_FORMAT_R8;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ return MESA_FORMAT_SIGNED_R8;
+ case MESA_FORMAT_RG_RGTC2:
+ return MESA_FORMAT_RG88;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ return MESA_FORMAT_SIGNED_RG88_REV;
+ case MESA_FORMAT_L_LATC1:
+ return MESA_FORMAT_L8;
+ case MESA_FORMAT_SIGNED_L_LATC1:
+ return MESA_FORMAT_SIGNED_L8;
+ case MESA_FORMAT_LA_LATC2:
+ return MESA_FORMAT_AL88;
+ case MESA_FORMAT_SIGNED_LA_LATC2:
+ return MESA_FORMAT_SIGNED_AL88;
+ default:
+#ifdef DEBUG
+ assert(!_mesa_is_format_compressed(format));
+#endif
+ return format;
+ }
+}
+
+
+GLuint
+_mesa_format_num_components(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return ((info->RedBits > 0) +
+ (info->GreenBits > 0) +
+ (info->BlueBits > 0) +
+ (info->AlphaBits > 0) +
+ (info->LuminanceBits > 0) +
+ (info->IntensityBits > 0) +
+ (info->DepthBits > 0) +
+ (info->StencilBits > 0));
+}
+
+
+/**
* Return number of bytes needed to store an image of the given size
* in the given format.
*/
|