- struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
- GLenum internalFormat = texImage->InternalFormat;
-
- /* XXX need to check <border> as in above function? */
-
- /* Need to check texture is compatible with source format.
- */
-
- if (!intel_copy_texsubimage(intel_context(ctx), target,
- intel_texture_image(texImage),
- internalFormat, xoffset, 0, x, y, width, 1)) {
- fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
- _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width);
+ struct intel_context *intel = intel_context(ctx);
+ if (dims != 3) {
+#ifndef I915
+ /* Try BLORP first. It can handle almost everything. */
+ if (brw_blorp_copytexsubimage(intel, rb, texImage, x, y,
+ xoffset, yoffset, width, height))
+ return;
+#endif
+
+ /* Next, try the BLT engine. */
+ if (intel_copy_texsubimage(intel,
+ intel_texture_image(texImage),
+ xoffset, yoffset,
+ intel_renderbuffer(rb), x, y, width, height))
+ return;