struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
GLenum base_format,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0, GLuint cpp, GLuint compress_byte,
GLboolean expect_accelerated_upload)
{
struct intel_mipmap_tree *mt;
uint32_t tiling = I915_TILING_NONE;
if (intel->use_texture_tiling && compress_byte == 0) {
if (intel->gen >= 4 &&
(base_format == GL_DEPTH_COMPONENT ||
base_format == GL_DEPTH_STENCIL_EXT))
tiling = I915_TILING_Y;
else if (width0 >= 64)
tiling = I915_TILING_X;
}
mt = intel_miptree_create_internal(intel, target, internal_format,
first_level, last_level, width0,
height0, depth0, cpp, compress_byte,
tiling);
/*
* pitch == 0 || height == 0 indicates the null texture
*/
if (!mt || !mt->total_height) {
free(mt);
return NULL;
}
mt->region = intel_region_alloc(intel->intelScreen,
tiling,
mt->cpp,
mt->total_width,
mt->total_height,
expect_accelerated_upload);
if (!mt->region) {
free(mt);
return NULL;
}
return mt;
}
struct intel_mipmap_tree *
intel_miptree_create_for_region(struct intel_context *intel,
GLenum target,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
struct intel_region *region,
GLuint depth0,
GLuint compress_byte)
{
struct intel_mipmap_tree *mt;
mt = intel_miptree_create_internal(intel, target, internal_format,
first_level, last_level,
region->width, region->height, 1,
region->cpp, compress_byte);
if (!mt)
return mt;
#if 0
if (mt->pitch != region->pitch) {
fprintf(stderr,
"region pitch (%d) doesn't match mipmap tree pitch (%d)\n",
region->pitch, mt->pitch);
free(mt);
return NULL;
}
#else
/* The mipmap tree pitch is aligned to 64 bytes to make sure render
* to texture works, but we don't need that for texturing from a
* pixmap. Just override it here. */
mt->pitch = region->pitch;
#endif
intel_region_reference(&mt->region, region);
return mt;
}
struct intel_mipmap_tree *
intel_miptree_create_for_region(struct intel_context *intel,
GLenum target,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
struct intel_region *region,
GLuint depth0,
GLuint compress_byte)
{
struct intel_mipmap_tree *mt;
mt = intel_miptree_create_internal(intel, target, internal_format,
first_level, last_level,
region->width, region->height, 1,
region->cpp, compress_byte,
I915_TILING_NONE);
if (!mt)
return mt;
intel_region_reference(&mt->region, region);
return mt;
}
struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0, GLuint cpp, GLuint compress_byte,
GLboolean expect_accelerated_upload)
{
struct intel_mipmap_tree *mt;
mt = intel_miptree_create_internal(intel, target, internal_format,
first_level, last_level, width0,
height0, depth0, cpp, compress_byte);
/*
* pitch == 0 || height == 0 indicates the null texture
*/
if (!mt || !mt->pitch || !mt->total_height)
return NULL;
mt->region = intel_region_alloc(intel,
mt->cpp,
mt->pitch,
mt->total_height,
mt->pitch,
expect_accelerated_upload);
if (!mt->region) {
free(mt);
return NULL;
}
return mt;
}
