-
-/**
- * Get the pointer to a 4x4 depth/stencil block.
- * We'll map the z/stencil buffer on demand here.
- * Note that this may be called even when there's no z/stencil buffer - return
- * NULL in that case.
- * \param x, y location of 4x4 block in window coords
- */
-static INLINE void *
-lp_rast_get_depth_block_pointer(struct lp_rasterizer_task *task,
- unsigned x, unsigned y)
-{
- const struct lp_scene *scene = task->scene;
- void *depth;
-
- assert(x < scene->tiles_x * TILE_SIZE);
- assert(y < scene->tiles_y * TILE_SIZE);
- assert((x % TILE_VECTOR_WIDTH) == 0);
- assert((y % TILE_VECTOR_HEIGHT) == 0);
-
- if (!scene->zsbuf.map) {
- /* Either out of memory or no zsbuf. Can't tell without access
- * to the state. Just use dummy tile memory, but don't print
- * the oom warning as this most likely because there is no
- * zsbuf.
- */
- return lp_dummy_tile;
- }
-
- depth = (scene->zsbuf.map +
- scene->zsbuf.stride * y +
- scene->zsbuf.blocksize * x * TILE_VECTOR_HEIGHT);
-
- assert(lp_check_alignment(depth, 16));
- return depth;
-}
-
-
-/**
- * Get pointer to the swizzled color tile
- */
-static INLINE uint8_t *
-lp_rast_get_color_tile_pointer(struct lp_rasterizer_task *task,
- unsigned buf, enum lp_texture_usage usage)
-{
- const struct lp_scene *scene = task->scene;
-
- assert(task->x < scene->tiles_x * TILE_SIZE);
- assert(task->y < scene->tiles_y * TILE_SIZE);
- assert(task->x % TILE_SIZE == 0);
- assert(task->y % TILE_SIZE == 0);
- assert(buf < scene->fb.nr_cbufs);
- assert(scene->cbufs[buf].unswizzled == 0);
-
- if (!task->color_tiles[buf]) {
- struct pipe_surface *cbuf = scene->fb.cbufs[buf];
- struct llvmpipe_resource *lpt;
- assert(cbuf);
- lpt = llvmpipe_resource(cbuf->texture);
- task->color_tiles[buf] = lp_swizzled_cbuf[task->thread_index][buf];
-
- if (usage != LP_TEX_USAGE_WRITE_ALL) {
- llvmpipe_swizzle_cbuf_tile(lpt,
- cbuf->u.tex.first_layer,
- cbuf->u.tex.level,
- task->x, task->y,
- task->color_tiles[buf]);
- }
- }
-
- return task->color_tiles[buf];
-}
-
-
-/**
- * Get pointer to the unswizzled color tile
- */
-static INLINE uint8_t *
-lp_rast_get_unswizzled_color_tile_pointer(struct lp_rasterizer_task *task,
- unsigned buf, enum lp_texture_usage usage)
-{
- const struct lp_scene *scene = task->scene;
- unsigned format_bytes;
-
- assert(task->x < scene->tiles_x * TILE_SIZE);
- assert(task->y < scene->tiles_y * TILE_SIZE);
- assert(task->x % TILE_SIZE == 0);
- assert(task->y % TILE_SIZE == 0);
- assert(buf < scene->fb.nr_cbufs);
- assert(scene->cbufs[buf].unswizzled);
-
- if (!task->color_tiles[buf]) {
- struct pipe_surface *cbuf = scene->fb.cbufs[buf];
- assert(cbuf);
-
- format_bytes = util_format_description(cbuf->format)->block.bits / 8;
- task->color_tiles[buf] = scene->cbufs[buf].map + scene->cbufs[buf].stride * task->y + format_bytes * task->x;
- }
-
- return task->color_tiles[buf];
-}
-
-