/* Upload data to a rectangular sub-region. Lots of choices how to do this: * * - memcpy by span to current destination * - upload data as new buffer and blit * * Currently always memcpy. */ void intel_region_data(struct intel_context *intel, struct intel_region *dst, GLuint dst_offset, GLuint dstx, GLuint dsty, const void *src, GLuint src_pitch, GLuint srcx, GLuint srcy, GLuint width, GLuint height) { _DBG("%s\n", __FUNCTION__); if (intel == NULL) return; if (dst->pbo) { if (dstx == 0 && dsty == 0 && width == dst->pitch && height == dst->height) intel_region_release_pbo(intel, dst); else intel_region_cow(intel, dst); } LOCK_HARDWARE(intel); _mesa_copy_rect(intel_region_map(intel, dst) + dst_offset, dst->cpp, dst->pitch, dstx, dsty, width, height, src, src_pitch, srcx, srcy); intel_region_unmap(intel, dst); UNLOCK_HARDWARE(intel); }
/** * Copy mipmap image between trees */ void intel_miptree_image_copy(struct intel_context *intel, struct intel_mipmap_tree *dst, GLuint face, GLuint level, struct intel_mipmap_tree *src) { GLuint width = src->level[level].width; GLuint height = src->level[level].height; GLuint depth = src->level[level].depth; GLuint src_x, src_y, dst_x, dst_y; GLuint i; GLboolean success; if (dst->compressed) { GLuint align_w, align_h; intel_get_texture_alignment_unit(dst->internal_format, &align_w, &align_h); height = (height + 3) / 4; width = ALIGN(width, align_w); } intel_prepare_render(intel); for (i = 0; i < depth; i++) { intel_miptree_get_image_offset(src, level, face, i, &src_x, &src_y); intel_miptree_get_image_offset(dst, level, face, i, &dst_x, &dst_y); success = intel_region_copy(intel, dst->region, 0, dst_x, dst_y, src->region, 0, src_x, src_y, width, height, GL_FALSE, GL_COPY); if (!success) { GLubyte *src_ptr, *dst_ptr; src_ptr = intel_region_map(intel, src->region); dst_ptr = intel_region_map(intel, dst->region); _mesa_copy_rect(dst_ptr, dst->cpp, dst->region->pitch, dst_x, dst_y, width, height, src_ptr, src->region->pitch, src_x, src_y); intel_region_unmap(intel, src->region); intel_region_unmap(intel, dst->region); } } }