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