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authorBrian Paul <[email protected]>2011-12-15 16:30:33 -0700
committerBrian Paul <[email protected]>2011-12-16 12:14:27 -0700
commitd77b963245fd286aecd6c04f7beb748ad22129cf (patch)
tree0fc8eab8873f99b1b65013258103f2060911bde1 /src/mesa/main/debug.c
parentd842a118b26a56c9c5e4310f30f70199c42ea90e (diff)
mesa: new _mesa_prepare_mipmap_level() function for mipmap generation
This helper function is used during mipmap generation to prepare space for the destination mipmap levels. This improves/fixes two things: 1. If the texture object was created with glTexStorage2D, calling _mesa_TexImage2D() to allocate the new image would generate INVALID_OPERATION since the texture is marked as immutable. 2. _mesa_TexImage2D() always frees any existing texture image memory before allocating new memory. That's inefficient if the existing image is the right size already. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/main/debug.c')
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