/**************************************************************************
*
* 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 "os/os_thread.h"
#include "util/u_format.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"
#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;
/* occlude counter for visible pixels */
struct lp_jit_thread_data thread_data;
uint64_t ps_invocations;
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;
pipe_thread threads[LP_MAX_THREADS];
/** For synchronizing the rasterization threads */
pipe_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 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);
if (!task->color_tiles[buf]) {
struct pipe_surface *cbuf = scene->fb.cbufs[buf];
assert(cbuf);
format_bytes = util_format_get_blocksize(cbuf->format);
task->color_tiles[buf] = scene->cbufs[buf].map + scene->cbufs[buf].stride * task->y + format_bytes * task->x;
}
return task->color_tiles[buf];
}
/**
* Get pointer to the unswizzled depth tile
*/
static INLINE uint8_t *
lp_rast_get_unswizzled_depth_tile_pointer(struct lp_rasterizer_task *task,
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);
if (!task->depth_tile) {
struct pipe_surface *dbuf = scene->fb.zsbuf;
assert(dbuf);
format_bytes = util_format_get_blocksize(dbuf->format);
task->depth_tile = scene->zsbuf.map + scene->zsbuf.stride * task->y + format_bytes * task->x;
}
return task->depth_tile;
}
/**
* Get the pointer to an unswizzled 4x4 color block (within an unswizzled 64x64 tile).
* \param x, y location of 4x4 block in window coords
*/
static INLINE uint8_t *
lp_rast_get_unswizzled_color_block_pointer(struct lp_rasterizer_task *task,
unsigned buf, unsigned x, unsigned y,
unsigned layer)
{
unsigned px, py, pixel_offset, format_bytes;
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);
format_bytes = util_format_get_blocksize(task->scene->fb.cbufs[buf]->format);
color = lp_rast_get_unswizzled_color_tile_pointer(task, buf, LP_TEX_USAGE_READ_WRITE);
assert(color);
px = x % TILE_SIZE;
py = y % TILE_SIZE;
pixel_offset = px * format_bytes + py * task->scene->cbufs[buf].stride;
color = color + 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 an unswizzled 4x4 depth block (within an unswizzled 64x64 tile).
* \param x, y location of 4x4 block in window coords
*/
static INLINE uint8_t *
lp_rast_get_unswizzled_depth_block_pointer(struct lp_rasterizer_task *task,
unsigned x, unsigned y, unsigned layer)
{
unsigned px, py, pixel_offset, format_bytes;
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);
format_bytes = util_format_get_blocksize(task->scene->fb.zsbuf->format);
depth = lp_rast_get_unswizzled_depth_tile_pointer(task, LP_TEX_USAGE_READ_WRITE);
assert(depth);
px = x % TILE_SIZE;
py = y % TILE_SIZE;
pixel_offset = px * format_bytes + py * task->scene->zsbuf.stride;
depth = depth + 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++) {
stride[i] = scene->cbufs[i].stride;
color[i] = lp_rast_get_unswizzled_color_block_pointer(task, i, x, y, inputs->layer);
}
if (scene->zsbuf.map) {
depth = lp_rast_get_unswizzled_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++;
/* 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_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