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| author | Keith Whitwell <keithw@vmware.com> | 2009-09-02 18:30:11 +0100 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-09-03 16:07:45 -0600 |
| commit | 8fc945cd847aa5d343a5f76eb2f9f2c9075cccdd (patch) | |
| tree | d838882efb49d2783cae158d6cb7b84232fb1031 /docs/shading.html | |
| parent | 862724d3c2761fe148d985e9205ebb1cc36f3011 (diff) | |
| download | external_mesa3d-8fc945cd847aa5d343a5f76eb2f9f2c9075cccdd.zip external_mesa3d-8fc945cd847aa5d343a5f76eb2f9f2c9075cccdd.tar.gz external_mesa3d-8fc945cd847aa5d343a5f76eb2f9f2c9075cccdd.tar.bz2 | |
st/mesa: Do GL_RGBA->GL_RGB texsubimage on hardware
State tracker currently backs GL_RGB textures with RGBA almost always.
This means we need to maintain A==1 in these textures to give correct GL_RGB
sampling results.
This change offloads the RGBA->RGB copy to hardware using the new writemask
version of u_blit_pixels.
More src/dstLogical/dstActual triples could be shifted to hardware by
this technique in future patches.
Diffstat (limited to 'docs/shading.html')
0 files changed, 0 insertions, 0 deletions