/**************************************************************************
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*
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* Copyright 2009 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef LP_RAST_PRIV_H
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#define LP_RAST_PRIV_H
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#include "util/u_format.h"
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#include "util/u_thread.h"
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#include "gallivm/lp_bld_debug.h"
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#include "lp_memory.h"
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#include "lp_rast.h"
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#include "lp_scene.h"
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#include "lp_state.h"
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#include "lp_texture.h"
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#include "lp_limits.h"
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#define TILE_VECTOR_HEIGHT 4
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#define TILE_VECTOR_WIDTH 4
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/* If we crash in a jitted function, we can examine jit_line and jit_state
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* to get some info. This is not thread-safe, however.
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*/
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#ifdef DEBUG
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struct lp_rasterizer_task;
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extern int jit_line;
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extern const struct lp_rast_state *jit_state;
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extern const struct lp_rasterizer_task *jit_task;
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#define BEGIN_JIT_CALL(state, task) \
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do { \
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jit_line = __LINE__; \
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jit_state = state; \
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jit_task = task; \
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} while (0)
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#define END_JIT_CALL() \
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do { \
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jit_line = 0; \
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jit_state = NULL; \
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} while (0)
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#else
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#define BEGIN_JIT_CALL(X, Y)
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#define END_JIT_CALL()
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#endif
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struct lp_rasterizer;
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struct cmd_bin;
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/**
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* Per-thread rasterization state
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*/
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struct lp_rasterizer_task
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{
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const struct cmd_bin *bin;
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const struct lp_rast_state *state;
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struct lp_scene *scene;
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unsigned x, y; /**< Pos of this tile in framebuffer, in pixels */
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unsigned width, height; /**< width, height of current tile, in pixels */
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uint8_t *color_tiles[PIPE_MAX_COLOR_BUFS];
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uint8_t *depth_tile;
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/** "back" pointer */
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struct lp_rasterizer *rast;
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/** "my" index */
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unsigned thread_index;
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/** Non-interpolated passthru state and occlude counter for visible pixels */
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struct lp_jit_thread_data thread_data;
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uint64_t ps_invocations;
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uint8_t ps_inv_multiplier;
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pipe_semaphore work_ready;
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pipe_semaphore work_done;
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};
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/**
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* This is the state required while rasterizing tiles.
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* Note that this contains per-thread information too.
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* The tile size is TILE_SIZE x TILE_SIZE pixels.
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*/
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struct lp_rasterizer
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{
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boolean exit_flag;
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boolean no_rast; /**< For debugging/profiling */
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/** The incoming queue of scenes ready to rasterize */
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struct lp_scene_queue *full_scenes;
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/** The scene currently being rasterized by the threads */
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struct lp_scene *curr_scene;
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/** A task object for each rasterization thread */
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struct lp_rasterizer_task tasks[LP_MAX_THREADS];
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unsigned num_threads;
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thrd_t threads[LP_MAX_THREADS];
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/** For synchronizing the rasterization threads */
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util_barrier barrier;
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};
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void
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lp_rast_shade_quads_mask(struct lp_rasterizer_task *task,
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const struct lp_rast_shader_inputs *inputs,
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unsigned x, unsigned y,
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unsigned mask);
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/**
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* Get the pointer to a 4x4 color block (within a 64x64 tile).
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* \param x, y location of 4x4 block in window coords
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*/
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static inline uint8_t *
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lp_rast_get_color_block_pointer(struct lp_rasterizer_task *task,
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unsigned buf, unsigned x, unsigned y,
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unsigned layer)
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{
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unsigned px, py, pixel_offset;
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uint8_t *color;
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assert(x < task->scene->tiles_x * TILE_SIZE);
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assert(y < task->scene->tiles_y * TILE_SIZE);
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assert((x % TILE_VECTOR_WIDTH) == 0);
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assert((y % TILE_VECTOR_HEIGHT) == 0);
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assert(buf < task->scene->fb.nr_cbufs);
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assert(task->color_tiles[buf]);
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/*
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* We don't actually benefit from having per tile cbuf/zsbuf pointers,
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* it's just extra work - the mul/add would be exactly the same anyway.
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* Fortunately the extra work (modulo) here is very cheap at least...
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*/
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px = x % TILE_SIZE;
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py = y % TILE_SIZE;
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pixel_offset = px * task->scene->cbufs[buf].format_bytes +
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py * task->scene->cbufs[buf].stride;
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color = task->color_tiles[buf] + pixel_offset;
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if (layer) {
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color += layer * task->scene->cbufs[buf].layer_stride;
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}
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assert(lp_check_alignment(color, llvmpipe_get_format_alignment(task->scene->fb.cbufs[buf]->format)));
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return color;
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}
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/**
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* Get the pointer to a 4x4 depth block (within a 64x64 tile).
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* \param x, y location of 4x4 block in window coords
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*/
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static inline uint8_t *
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lp_rast_get_depth_block_pointer(struct lp_rasterizer_task *task,
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unsigned x, unsigned y, unsigned layer)
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{
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unsigned px, py, pixel_offset;
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uint8_t *depth;
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assert(x < task->scene->tiles_x * TILE_SIZE);
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assert(y < task->scene->tiles_y * TILE_SIZE);
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assert((x % TILE_VECTOR_WIDTH) == 0);
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assert((y % TILE_VECTOR_HEIGHT) == 0);
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assert(task->depth_tile);
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px = x % TILE_SIZE;
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py = y % TILE_SIZE;
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pixel_offset = px * task->scene->zsbuf.format_bytes +
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py * task->scene->zsbuf.stride;
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depth = task->depth_tile + pixel_offset;
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if (layer) {
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depth += layer * task->scene->zsbuf.layer_stride;
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}
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assert(lp_check_alignment(depth, llvmpipe_get_format_alignment(task->scene->fb.zsbuf->format)));
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return depth;
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}
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/**
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* Shade all pixels in a 4x4 block. The fragment code omits the
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* triangle in/out tests.
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* \param x, y location of 4x4 block in window coords
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*/
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static inline void
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lp_rast_shade_quads_all( struct lp_rasterizer_task *task,
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const struct lp_rast_shader_inputs *inputs,
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unsigned x, unsigned y )
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{
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const struct lp_scene *scene = task->scene;
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const struct lp_rast_state *state = task->state;
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struct lp_fragment_shader_variant *variant = state->variant;
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uint8_t *color[PIPE_MAX_COLOR_BUFS];
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unsigned stride[PIPE_MAX_COLOR_BUFS];
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uint8_t *depth = NULL;
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unsigned depth_stride = 0;
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unsigned i;
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/* color buffer */
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for (i = 0; i < scene->fb.nr_cbufs; i++) {
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if (scene->fb.cbufs[i]) {
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stride[i] = scene->cbufs[i].stride;
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color[i] = lp_rast_get_color_block_pointer(task, i, x, y,
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inputs->layer);
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}
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else {
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stride[i] = 0;
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color[i] = NULL;
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}
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}
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if (scene->zsbuf.map) {
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depth = lp_rast_get_depth_block_pointer(task, x, y, inputs->layer);
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depth_stride = scene->zsbuf.stride;
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}
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/*
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* The rasterizer may produce fragments outside our
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* allocated 4x4 blocks hence need to filter them out here.
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*/
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if ((x % TILE_SIZE) < task->width && (y % TILE_SIZE) < task->height) {
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/* not very accurate would need a popcount on the mask */
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/* always count this not worth bothering? */
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task->ps_invocations += 1 * variant->ps_inv_multiplier;
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/* Propagate non-interpolated raster state. */
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task->thread_data.raster_state.viewport_index = inputs->viewport_index;
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/* run shader on 4x4 block */
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BEGIN_JIT_CALL(state, task);
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variant->jit_function[RAST_WHOLE]( &state->jit_context,
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x, y,
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inputs->frontfacing,
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GET_A0(inputs),
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GET_DADX(inputs),
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GET_DADY(inputs),
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color,
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depth,
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0xffff,
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&task->thread_data,
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stride,
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depth_stride);
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END_JIT_CALL();
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}
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}
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void lp_rast_triangle_1( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_2( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_3( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_4( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_5( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_6( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_7( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_8( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_3_4(struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_3_16( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_4_16( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_1( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_2( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_3( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_4( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_5( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_6( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_7( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_8( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_3_4(struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_3_16( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void lp_rast_triangle_32_4_16( struct lp_rasterizer_task *,
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const union lp_rast_cmd_arg );
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void
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lp_rast_set_state(struct lp_rasterizer_task *task,
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const union lp_rast_cmd_arg arg);
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void
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lp_debug_bin( const struct cmd_bin *bin, int x, int y );
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#endif
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