- for (int y = 0; y < ytiles; y++) {
- for (int x = 0; x < xtiles; x++) {
- bool end_of_frame = (x == xtiles - 1 &&
- y == ytiles - 1);
- bool coords_emitted = false;
-
- /* Note that the load doesn't actually occur until the
- * tile coords packet is processed.
- */
- if (csurf && (resolve_uncleared & PIPE_CLEAR_COLOR)) {
- cl_start_reloc(&vc4->rcl, 1);
- cl_u8(&vc4->rcl, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
- cl_u8(&vc4->rcl,
- VC4_LOADSTORE_TILE_BUFFER_COLOR |
- (csurf->tiling <<
- VC4_LOADSTORE_TILE_BUFFER_FORMAT_SHIFT));
- cl_u8(&vc4->rcl,
- vc4_rt_format_is_565(csurf->base.format) ?
- VC4_LOADSTORE_TILE_BUFFER_BGR565 :
- VC4_LOADSTORE_TILE_BUFFER_RGBA8888);
- cl_reloc(vc4, &vc4->rcl, ctex->bo,
- csurf->offset);
-
- cl_u8(&vc4->rcl, VC4_PACKET_TILE_COORDINATES);
- cl_u8(&vc4->rcl, x);
- cl_u8(&vc4->rcl, y);
- coords_emitted = true;
- }
-
- if (zsurf && (resolve_uncleared & (PIPE_CLEAR_DEPTH |
- PIPE_CLEAR_STENCIL))) {
- cl_start_reloc(&vc4->rcl, 1);
- cl_u8(&vc4->rcl, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
- cl_u8(&vc4->rcl,
- VC4_LOADSTORE_TILE_BUFFER_ZS |
- (zsurf->tiling <<
- VC4_LOADSTORE_TILE_BUFFER_FORMAT_SHIFT));
- cl_u8(&vc4->rcl, 0);
- cl_reloc(vc4, &vc4->rcl, ztex->bo,
- zsurf->offset);
-
- cl_u8(&vc4->rcl, VC4_PACKET_TILE_COORDINATES);
- cl_u8(&vc4->rcl, x);
- cl_u8(&vc4->rcl, y);
- coords_emitted = true;
- }
-
- /* Clipping depends on tile coordinates having been
- * emitted, so make sure it's happened even if
- * everything was cleared to start.
- */
- if (!coords_emitted) {
- cl_u8(&vc4->rcl, VC4_PACKET_TILE_COORDINATES);
- cl_u8(&vc4->rcl, x);
- cl_u8(&vc4->rcl, y);
- }
-
- cl_start_reloc(&vc4->rcl, 1);
- cl_u8(&vc4->rcl, VC4_PACKET_BRANCH_TO_SUB_LIST);
- cl_reloc(vc4, &vc4->rcl, vc4->tile_alloc,
- (y * xtiles + x) * 32);
-
- if (zsurf && (vc4->resolve & (PIPE_CLEAR_DEPTH |
- PIPE_CLEAR_STENCIL))) {
- cl_start_reloc(&vc4->rcl, 1);
- cl_u8(&vc4->rcl, VC4_PACKET_STORE_TILE_BUFFER_GENERAL);
- cl_u8(&vc4->rcl,
- VC4_LOADSTORE_TILE_BUFFER_Z |
- (zsurf->tiling <<
- VC4_LOADSTORE_TILE_BUFFER_FORMAT_SHIFT));
- cl_u8(&vc4->rcl,
- VC4_STORE_TILE_BUFFER_DISABLE_COLOR_CLEAR);
- cl_reloc(vc4, &vc4->rcl, ztex->bo,
- zsurf->offset |
- ((end_of_frame &&
- !(vc4->resolve & PIPE_CLEAR_COLOR0)) ?
- VC4_LOADSTORE_TILE_BUFFER_EOF : 0));
- }
-
- if (vc4->resolve & PIPE_CLEAR_COLOR0) {
- if (end_of_frame) {
- cl_u8(&vc4->rcl,
- VC4_PACKET_STORE_MS_TILE_BUFFER_AND_EOF);
- } else {
- cl_u8(&vc4->rcl,
- VC4_PACKET_STORE_MS_TILE_BUFFER);
- }
- }
-
- /* One of the bits needs to have been set that would
- * have triggered an EOFq
- */
- assert(vc4->resolve & (PIPE_CLEAR_COLOR0 |
- PIPE_CLEAR_DEPTH |
- PIPE_CLEAR_STENCIL));
- }