1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #ifndef LP_RAST_PRIV_H
29 #define LP_RAST_PRIV_H
31 #include "os/os_thread.h"
32 #include "util/u_format.h"
33 #include "gallivm/lp_bld_debug.h"
34 #include "lp_memory.h"
38 #include "lp_texture.h"
39 #include "lp_tile_soa.h"
40 #include "lp_limits.h"
43 /* If we crash in a jitted function, we can examine jit_line and jit_state
44 * to get some info. This is not thread-safe, however.
49 extern const struct lp_rast_state
*jit_state
;
51 #define BEGIN_JIT_CALL(state) \
53 jit_line = __LINE__; \
57 #define END_JIT_CALL() \
65 #define BEGIN_JIT_CALL(X)
66 #define END_JIT_CALL()
75 * Per-thread rasterization state
77 struct lp_rasterizer_task
79 const struct cmd_bin
*bin
;
80 const struct lp_rast_state
*state
;
82 struct lp_scene
*scene
;
83 unsigned x
, y
; /**< Pos of this tile in framebuffer, in pixels */
85 uint8_t *color_tiles
[PIPE_MAX_COLOR_BUFS
];
89 struct lp_rasterizer
*rast
;
92 unsigned thread_index
;
94 /* occlude counter for visiable pixels */
96 struct llvmpipe_query
*query
;
98 pipe_semaphore work_ready
;
99 pipe_semaphore work_done
;
104 * This is the state required while rasterizing tiles.
105 * Note that this contains per-thread information too.
106 * The tile size is TILE_SIZE x TILE_SIZE pixels.
112 /** The incoming queue of scenes ready to rasterize */
113 struct lp_scene_queue
*full_scenes
;
115 /** The scene currently being rasterized by the threads */
116 struct lp_scene
*curr_scene
;
118 /** A task object for each rasterization thread */
119 struct lp_rasterizer_task tasks
[LP_MAX_THREADS
];
121 unsigned num_threads
;
122 pipe_thread threads
[LP_MAX_THREADS
];
124 /** For synchronizing the rasterization threads */
125 pipe_barrier barrier
;
130 lp_rast_shade_quads_mask(struct lp_rasterizer_task
*task
,
131 const struct lp_rast_shader_inputs
*inputs
,
132 unsigned x
, unsigned y
,
138 * Get the pointer to a 4x4 depth/stencil block.
139 * We'll map the z/stencil buffer on demand here.
140 * Note that this may be called even when there's no z/stencil buffer - return
142 * \param x, y location of 4x4 block in window coords
145 lp_rast_get_depth_block_pointer(struct lp_rasterizer_task
*task
,
146 unsigned x
, unsigned y
)
148 const struct lp_scene
*scene
= task
->scene
;
151 assert((x
% TILE_VECTOR_WIDTH
) == 0);
152 assert((y
% TILE_VECTOR_HEIGHT
) == 0);
154 if (!scene
->zsbuf
.map
) {
155 /* Either out of memory or no zsbuf. Can't tell without access
156 * to the state. Just use dummy tile memory, but don't print
157 * the oom warning as this most likely because there is no
160 return lp_dummy_tile
;
163 depth
= (scene
->zsbuf
.map
+
164 scene
->zsbuf
.stride
* y
+
165 scene
->zsbuf
.blocksize
* x
* TILE_VECTOR_HEIGHT
);
167 assert(lp_check_alignment(depth
, 16));
173 * Get pointer to the swizzled color tile
175 static INLINE
uint8_t *
176 lp_rast_get_color_tile_pointer(struct lp_rasterizer_task
*task
,
177 unsigned buf
, enum lp_texture_usage usage
)
179 const struct lp_scene
*scene
= task
->scene
;
181 assert(task
->x
% TILE_SIZE
== 0);
182 assert(task
->y
% TILE_SIZE
== 0);
183 assert(buf
< scene
->fb
.nr_cbufs
);
185 if (!task
->color_tiles
[buf
]) {
186 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[buf
];
187 struct llvmpipe_resource
*lpt
;
189 lpt
= llvmpipe_resource(cbuf
->texture
);
190 task
->color_tiles
[buf
] = lp_swizzled_cbuf
[task
->thread_index
][buf
];
192 if (usage
!= LP_TEX_USAGE_WRITE_ALL
) {
193 llvmpipe_swizzle_cbuf_tile(lpt
,
194 cbuf
->face
+ cbuf
->zslice
,
197 task
->color_tiles
[buf
]);
201 return task
->color_tiles
[buf
];
206 * Get the pointer to a 4x4 color block (within a 64x64 tile).
207 * We'll map the color buffer on demand here.
208 * Note that this may be called even when there's no color buffers - return
210 * \param x, y location of 4x4 block in window coords
212 static INLINE
uint8_t *
213 lp_rast_get_color_block_pointer(struct lp_rasterizer_task
*task
,
214 unsigned buf
, unsigned x
, unsigned y
)
216 unsigned px
, py
, pixel_offset
;
219 assert((x
% TILE_VECTOR_WIDTH
) == 0);
220 assert((y
% TILE_VECTOR_HEIGHT
) == 0);
222 color
= lp_rast_get_color_tile_pointer(task
, buf
, LP_TEX_USAGE_READ_WRITE
);
227 pixel_offset
= tile_pixel_offset(px
, py
, 0);
229 color
= color
+ pixel_offset
;
231 assert(lp_check_alignment(color
, 16));
238 * Shade all pixels in a 4x4 block. The fragment code omits the
239 * triangle in/out tests.
240 * \param x, y location of 4x4 block in window coords
243 lp_rast_shade_quads_all( struct lp_rasterizer_task
*task
,
244 const struct lp_rast_shader_inputs
*inputs
,
245 unsigned x
, unsigned y
)
247 const struct lp_scene
*scene
= task
->scene
;
248 const struct lp_rast_state
*state
= task
->state
;
249 struct lp_fragment_shader_variant
*variant
= state
->variant
;
250 uint8_t *color
[PIPE_MAX_COLOR_BUFS
];
255 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++)
256 color
[i
] = lp_rast_get_color_block_pointer(task
, i
, x
, y
);
258 depth
= lp_rast_get_depth_block_pointer(task
, x
, y
);
260 /* run shader on 4x4 block */
261 BEGIN_JIT_CALL(state
);
262 variant
->jit_function
[RAST_WHOLE
]( &state
->jit_context
,
271 &task
->vis_counter
);
275 void lp_rast_triangle_1( struct lp_rasterizer_task
*,
276 const union lp_rast_cmd_arg
);
277 void lp_rast_triangle_2( struct lp_rasterizer_task
*,
278 const union lp_rast_cmd_arg
);
279 void lp_rast_triangle_3( struct lp_rasterizer_task
*,
280 const union lp_rast_cmd_arg
);
281 void lp_rast_triangle_4( struct lp_rasterizer_task
*,
282 const union lp_rast_cmd_arg
);
283 void lp_rast_triangle_5( struct lp_rasterizer_task
*,
284 const union lp_rast_cmd_arg
);
285 void lp_rast_triangle_6( struct lp_rasterizer_task
*,
286 const union lp_rast_cmd_arg
);
287 void lp_rast_triangle_7( struct lp_rasterizer_task
*,
288 const union lp_rast_cmd_arg
);
289 void lp_rast_triangle_8( struct lp_rasterizer_task
*,
290 const union lp_rast_cmd_arg
);
292 void lp_rast_triangle_3_4(struct lp_rasterizer_task
*,
293 const union lp_rast_cmd_arg
);
295 void lp_rast_triangle_3_16( struct lp_rasterizer_task
*,
296 const union lp_rast_cmd_arg
);
298 void lp_rast_triangle_4_16( struct lp_rasterizer_task
*,
299 const union lp_rast_cmd_arg
);
302 lp_rast_set_state(struct lp_rasterizer_task
*task
,
303 const union lp_rast_cmd_arg arg
);
306 lp_debug_bin( const struct cmd_bin
*bin
);