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st/mesa: updated comment

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This commit is contained in:
Brian Paul 2010-05-03 15:17:38 -06:00
parent a12614362a
commit 4b7812919a
1 changed files with 5 additions and 4 deletions
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9
src/mesa/state_tracker/st_cb_texture.c
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@ -312,10 +312,11 @@ guess_and_alloc_texture(struct st_context *st,
* the level=0 mipmap image.
*/
/* Guess a reasonable value for lastLevel. This is probably going
* to be wrong fairly often and might mean that we have to look at
* resizable buffers, or require that buffers implement lazy
* pagetable arrangements.
/* Guess a reasonable value for lastLevel. With OpenGL we have no
* idea how many mipmap levels will be in a texture until we start
* to render with it. Make an educated guess here but be prepared
* to re-allocating a texture buffer with space for more (or fewer)
* mipmap levels later.
*/
if ((stObj->base.MinFilter == GL_NEAREST ||
stObj->base.MinFilter == GL_LINEAR ||