- /* These must be signed values. MinLod and MaxLod can be negative numbers,
- * and having firstLevel and lastLevel as signed prevents the need for
- * extra sign checks.
- */
- int firstLevel;
- int lastLevel;
-
- /* Yes, this looks overly complicated, but it's all needed.
- */
- switch (tObj->Target) {
- case GL_TEXTURE_1D:
- case GL_TEXTURE_2D:
- case GL_TEXTURE_3D:
- case GL_TEXTURE_CUBE_MAP:
- 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 {
- if (!IS_9XX(intel->intelScreen->deviceID)) {
- firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5);
- firstLevel = MAX2(firstLevel, tObj->BaseLevel);
- firstLevel = MIN2(firstLevel, tObj->BaseLevel + baseImage->MaxLog2);
- lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5);
- lastLevel = MAX2(lastLevel, tObj->BaseLevel);
- lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2);
- lastLevel = MIN2(lastLevel, tObj->MaxLevel);
- lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */
- } else {
- /* Min/max LOD are taken into account in sampler state. We don't
- * want to re-layout textures just because clamping has been applied
- * since it means a bunch of blitting around and probably no memory
- * savings (since we have to keep the other levels around anyway).
- */
- firstLevel = tObj->BaseLevel;
- lastLevel = MIN2(tObj->BaseLevel + baseImage->MaxLog2,
- tObj->MaxLevel);
- /* need at least one level */
- lastLevel = MAX2(firstLevel, lastLevel);
- }
- }
- break;
- case GL_TEXTURE_RECTANGLE_NV:
- case GL_TEXTURE_4D_SGIS:
- firstLevel = lastLevel = 0;
- break;
- default:
- return;
- }
-
- /* save these values */
- intelObj->firstLevel = firstLevel;
- intelObj->lastLevel = lastLevel;
-}
-
-/**
- * Copies the image's contents at its level into the object's miptree,
- * and updates the image to point at the object's miptree.
- */
-static void
-copy_image_data_to_tree(struct intel_context *intel,
- struct intel_texture_object *intelObj,
- struct intel_texture_image *intelImage)
-{
- if (intelImage->mt) {
- /* Copy potentially with the blitter:
- */
- intel_miptree_image_copy(intel,
- intelObj->mt,
- intelImage->face,
- intelImage->level, intelImage->mt);
-
- intel_miptree_release(intel, &intelImage->mt);