[Mesa-dev] [PATCH 1/5] mesa: Choose RGTC formats for GL_COMPRESSED_RED, GL_COMPRESSED_RG.

[Eric Anholt]

We were falling through to the default R8 and RG88 formats instead of
compressing when possible.  Noticed by swrast fbo-blending-formats
actually doing rendering.
---
 src/mesa/main/texformat.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index c85a7c0..cbebec9 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -621,7 +621,11 @@ _mesa_choose_tex_format( struct gl_context *ctx, GLint 
internalFormat,
       switch (internalFormat) {
       case GL_R8:
       case GL_RED:
+        RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
+        break;
+
       case GL_COMPRESSED_RED:
+        RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1);
         RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
         break;
 
@@ -631,7 +635,11 @@ _mesa_choose_tex_format( struct gl_context *ctx, GLint 
internalFormat,
 
       case GL_RG:
       case GL_RG8:
+        RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
+        break;
+
       case GL_COMPRESSED_RG:
+        RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2);
         RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
         break;
 
-- 
1.7.4.4

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