+ struct pipe_transfer *dst_trans;
+ ubyte *dst_map;
+ boolean need_rmw = FALSE;
+
+ if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) &&
+ ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
+ util_format_is_depth_and_stencil(dst->format))
+ need_rmw = TRUE;
+
+ assert(dst->texture);
+ if (!dst->texture)
+ return;
+ dst_trans = pipe_get_transfer(pipe,
+ dst->texture,
+ dst->u.tex.level,
+ dst->u.tex.first_layer,
+ (need_rmw ? PIPE_TRANSFER_READ_WRITE :
+ PIPE_TRANSFER_WRITE),
+ dstx, dsty, width, height);
+
+ dst_map = pipe->transfer_map(pipe, dst_trans);
+
+ assert(dst_map);
+
+ if (dst_map) {
+ unsigned dst_stride = dst_trans->stride;
+ unsigned zstencil = util_pack_z_stencil(dst->texture->format, depth, stencil);
+ unsigned i, j;
+ assert(dst_trans->stride > 0);
+
+ switch (util_format_get_blocksize(dst->format)) {
+ case 1:
+ assert(dst->format == PIPE_FORMAT_S8_USCALED);
+ if(dst_stride == width)
+ memset(dst_map, (ubyte) zstencil, height * width);
+ else {
+ for (i = 0; i < height; i++) {
+ memset(dst_map, (ubyte) zstencil, width);
+ dst_map += dst_stride;
+ }
+ }
+ break;
+ case 2:
+ assert(dst->format == PIPE_FORMAT_Z16_UNORM);
+ for (i = 0; i < height; i++) {
+ uint16_t *row = (uint16_t *)dst_map;
+ for (j = 0; j < width; j++)
+ *row++ = (uint16_t) zstencil;
+ dst_map += dst_stride;
+ }
+ break;
+ case 4:
+ if (!need_rmw) {
+ for (i = 0; i < height; i++) {
+ uint32_t *row = (uint32_t *)dst_map;
+ for (j = 0; j < width; j++)
+ *row++ = zstencil;
+ dst_map += dst_stride;
+ }
+ }
+ else {
+ uint32_t dst_mask;
+ if (dst->format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
+ dst_mask = 0xffffff00;
+ else {
+ assert(dst->format == PIPE_FORMAT_S8_USCALED_Z24_UNORM);
+ dst_mask = 0xffffff;
+ }
+ if (clear_flags & PIPE_CLEAR_DEPTH)
+ dst_mask = ~dst_mask;
+ for (i = 0; i < height; i++) {
+ uint32_t *row = (uint32_t *)dst_map;
+ for (j = 0; j < width; j++) {
+ uint32_t tmp = *row & dst_mask;
+ *row++ = tmp | (zstencil & ~dst_mask);
+ }
+ dst_map += dst_stride;
+ }
+ }
+ break;
+ case 8:
+ default:
+ assert(0);
+ break;
+ }