static __DRIimage *
intel_create_image_from_renderbuffer(__DRIcontext *context,
int renderbuffer, void *loaderPrivate)
{
__DRIimage *image;
struct intel_context *intel = context->driverPrivate;
struct gl_renderbuffer *rb;
struct intel_renderbuffer *irb;
rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);
if (!rb) {
_mesa_error(&intel->ctx,
GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
return NULL;
}
irb = intel_renderbuffer(rb);
image = calloc(1, sizeof *image);
if (image == NULL)
return NULL;
image->internal_format = rb->InternalFormat;
image->format = rb->Format;
image->offset = 0;
image->data = loaderPrivate;
intel_region_reference(&image->region, irb->mt->region);
intel_setup_image_from_dimensions(image);
image->dri_format = intel_dri_format(image->format);
rb->NeedsFinishRenderTexture = true;
return image;
}
static __DRIimage *
intel_create_image_from_texture(__DRIcontext *context, int target,
unsigned texture, int zoffset,
int level,
unsigned *error,
void *loaderPrivate)
{
__DRIimage *image;
struct brw_context *brw = context->driverPrivate;
struct gl_texture_object *obj;
struct intel_texture_object *iobj;
GLuint face = 0;
obj = _mesa_lookup_texture(&brw->ctx, texture);
if (!obj || obj->Target != target) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (target == GL_TEXTURE_CUBE_MAP)
face = zoffset;
_mesa_test_texobj_completeness(&brw->ctx, obj);
iobj = intel_texture_object(obj);
if (!obj->_BaseComplete || (level > 0 && !obj->_MipmapComplete)) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (level < obj->BaseLevel || level > obj->_MaxLevel) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
if (target == GL_TEXTURE_3D && obj->Image[face][level]->Depth < zoffset) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
image = calloc(1, sizeof *image);
if (image == NULL) {
*error = __DRI_IMAGE_ERROR_BAD_ALLOC;
return NULL;
}
image->internal_format = obj->Image[face][level]->InternalFormat;
image->format = obj->Image[face][level]->TexFormat;
image->data = loaderPrivate;
intel_setup_image_from_mipmap_tree(brw, image, iobj->mt, level, zoffset);
image->dri_format = intel_dri_format(image->format);
image->has_depthstencil = iobj->mt->stencil_mt? true : false;
if (image->dri_format == MESA_FORMAT_NONE) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
free(image);
return NULL;
}
*error = __DRI_IMAGE_ERROR_SUCCESS;
return image;
}
