+static void
+intel_copy_image_sub_data(struct gl_context *ctx,
+ struct gl_texture_image *src_image,
+ struct gl_renderbuffer *src_renderbuffer,
+ int src_x, int src_y, int src_z,
+ struct gl_texture_image *dst_image,
+ struct gl_renderbuffer *dst_renderbuffer,
+ int dst_x, int dst_y, int dst_z,
+ int src_width, int src_height)
+{
+ struct brw_context *brw = brw_context(ctx);
+ struct intel_mipmap_tree *src_mt, *dst_mt;
+ unsigned src_level, dst_level;
+
+ if (src_image) {
+ src_mt = intel_texture_image(src_image)->mt;
+ src_level = src_image->Level + src_image->TexObject->MinLevel;
+
+ /* Cube maps actually have different images per face */
+ if (src_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
+ src_z = src_image->Face;
+
+ src_z += src_image->TexObject->MinLayer;
+ } else {
+ assert(src_renderbuffer);
+ src_mt = intel_renderbuffer(src_renderbuffer)->mt;
+ src_image = src_renderbuffer->TexImage;
+ src_level = 0;
+ }
+
+ if (dst_image) {
+ dst_mt = intel_texture_image(dst_image)->mt;
+
+ dst_level = dst_image->Level + dst_image->TexObject->MinLevel;
+
+ /* Cube maps actually have different images per face */
+ if (dst_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
+ dst_z = dst_image->Face;
+
+ dst_z += dst_image->TexObject->MinLayer;
+ } else {
+ assert(dst_renderbuffer);
+ dst_mt = intel_renderbuffer(dst_renderbuffer)->mt;
+ dst_image = dst_renderbuffer->TexImage;
+ dst_level = 0;
+ }
+
+ copy_miptrees(brw, src_mt, src_x, src_y, src_z, src_level,
+ dst_mt, dst_x, dst_y, dst_z, dst_level,
+ src_width, src_height);
+
+ /* CopyImage only works for equal formats, texture view equivalence
+ * classes, and a couple special cases for compressed textures.
+ *
+ * Notably, GL_DEPTH_STENCIL does not appear in any equivalence
+ * classes, so we know the formats must be the same, and thus both
+ * will either have stencil, or not. They can't be mismatched.
+ */
+ assert((src_mt->stencil_mt != NULL) == (dst_mt->stencil_mt != NULL));
+
+ if (dst_mt->stencil_mt) {
+ copy_miptrees(brw, src_mt->stencil_mt, src_x, src_y, src_z, src_level,
+ dst_mt->stencil_mt, dst_x, dst_y, dst_z, dst_level,
+ src_width, src_height);
+ }
+}
+