if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. */
firstLevel = lastLevel = tObj->BaseLevel;
}
else {
firstLevel = tObj->BaseLevel + (GLint)(tObj->MinLod + 0.5);
firstLevel = MAX2(firstLevel, tObj->BaseLevel);
lastLevel = tObj->BaseLevel + (GLint)(tObj->MaxLod + 0.5);
lastLevel = MAX2(lastLevel, t->tObj->BaseLevel);
lastLevel = MIN2(lastLevel, t->tObj->BaseLevel + baseImage->MaxLog2);
lastLevel = MIN2(lastLevel, t->tObj->MaxLevel);
lastLevel = MAX2(firstLevel, lastLevel);
}I'm wondering if this has been thought through. For the test to work, this code fragement will have to be re-evaluated whenever tObj->MinFilter changes, or at least whenever it changes to/from NEAREST or LINEAR.
I don't think the drivers do this at the moment. Correct?
Keith
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