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"
47 * Per-thread rasterization state
49 struct lp_rasterizer_task
51 unsigned x
, y
; /**< Pos of this tile in framebuffer, in pixels */
53 uint8_t *color_tiles
[PIPE_MAX_COLOR_BUFS
];
57 struct lp_rasterizer
*rast
;
60 unsigned thread_index
;
62 /* occlude counter for visiable pixels */
65 pipe_semaphore work_ready
;
66 pipe_semaphore work_done
;
71 * This is the state required while rasterizing tiles.
72 * Note that this contains per-thread information too.
73 * The tile size is TILE_SIZE x TILE_SIZE pixels.
94 /** The incoming queue of scenes ready to rasterize */
95 struct lp_scene_queue
*full_scenes
;
98 * The outgoing queue of processed scenes to return to setup module
100 * XXX: while scenes are per-context but the rasterizer is
101 * (potentially) shared, these empty scenes should be returned to
102 * the context which created them rather than retained here.
104 /* struct lp_scene_queue *empty_scenes; */
106 /** The scene currently being rasterized by the threads */
107 struct lp_scene
*curr_scene
;
109 /** A task object for each rasterization thread */
110 struct lp_rasterizer_task tasks
[LP_MAX_THREADS
];
112 unsigned num_threads
;
113 pipe_thread threads
[LP_MAX_THREADS
];
115 /** For synchronizing the rasterization threads */
116 pipe_barrier barrier
;
121 lp_rast_shade_quads_mask(struct lp_rasterizer_task
*task
,
122 const struct lp_rast_shader_inputs
*inputs
,
123 unsigned x
, unsigned y
,
129 * Get the pointer to a 4x4 depth/stencil block.
130 * We'll map the z/stencil buffer on demand here.
131 * Note that this may be called even when there's no z/stencil buffer - return
133 * \param x, y location of 4x4 block in window coords
136 lp_rast_get_depth_block_pointer(struct lp_rasterizer_task
*task
,
137 unsigned x
, unsigned y
)
139 const struct lp_rasterizer
*rast
= task
->rast
;
142 assert((x
% TILE_VECTOR_WIDTH
) == 0);
143 assert((y
% TILE_VECTOR_HEIGHT
) == 0);
145 if (!rast
->zsbuf
.map
) {
146 /* Either out of memory or no zsbuf. Can't tell without access
147 * to the state. Just use dummy tile memory, but don't print
148 * the oom warning as this most likely because there is no
151 return lp_get_dummy_tile_silent();
154 depth
= (rast
->zsbuf
.map
+
155 rast
->zsbuf
.stride
* y
+
156 rast
->zsbuf
.blocksize
* x
* TILE_VECTOR_HEIGHT
);
158 assert(lp_check_alignment(depth
, 16));
164 * Get pointer to the swizzled color tile
166 static INLINE
uint8_t *
167 lp_rast_get_color_tile_pointer(struct lp_rasterizer_task
*task
,
168 unsigned buf
, enum lp_texture_usage usage
)
170 struct lp_rasterizer
*rast
= task
->rast
;
172 assert(task
->x
% TILE_SIZE
== 0);
173 assert(task
->y
% TILE_SIZE
== 0);
174 assert(buf
< rast
->state
.nr_cbufs
);
176 if (!task
->color_tiles
[buf
]) {
177 struct pipe_surface
*cbuf
= rast
->curr_scene
->fb
.cbufs
[buf
];
178 struct llvmpipe_resource
*lpt
;
180 lpt
= llvmpipe_resource(cbuf
->texture
);
181 task
->color_tiles
[buf
] = llvmpipe_get_texture_tile(lpt
,
182 cbuf
->face
+ cbuf
->zslice
,
187 if (!task
->color_tiles
[buf
]) {
188 /* out of memory - use dummy tile memory */
189 return lp_get_dummy_tile();
193 return task
->color_tiles
[buf
];
198 * Get the pointer to a 4x4 color block (within a 64x64 tile).
199 * We'll map the color buffer on demand here.
200 * Note that this may be called even when there's no color buffers - return
202 * \param x, y location of 4x4 block in window coords
204 static INLINE
uint8_t *
205 lp_rast_get_color_block_pointer(struct lp_rasterizer_task
*task
,
206 unsigned buf
, unsigned x
, unsigned y
)
208 unsigned px
, py
, pixel_offset
;
211 assert((x
% TILE_VECTOR_WIDTH
) == 0);
212 assert((y
% TILE_VECTOR_HEIGHT
) == 0);
214 color
= lp_rast_get_color_tile_pointer(task
, buf
, LP_TEX_USAGE_READ_WRITE
);
215 color
= task
->color_tiles
[buf
];
217 /* out of memory - use dummy tile memory */
218 return lp_get_dummy_tile();
223 pixel_offset
= tile_pixel_offset(px
, py
, 0);
225 color
= color
+ pixel_offset
;
227 assert(lp_check_alignment(color
, 16));
234 * Shade all pixels in a 4x4 block. The fragment code omits the
235 * triangle in/out tests.
236 * \param x, y location of 4x4 block in window coords
239 lp_rast_shade_quads_all( struct lp_rasterizer_task
*task
,
240 const struct lp_rast_shader_inputs
*inputs
,
241 unsigned x
, unsigned y
)
243 const struct lp_rasterizer
*rast
= task
->rast
;
244 const struct lp_rast_state
*state
= inputs
->state
;
245 struct lp_fragment_shader_variant
*variant
= state
->variant
;
246 uint8_t *color
[PIPE_MAX_COLOR_BUFS
];
251 for (i
= 0; i
< rast
->state
.nr_cbufs
; i
++)
252 color
[i
] = lp_rast_get_color_block_pointer(task
, i
, x
, y
);
254 depth
= lp_rast_get_depth_block_pointer(task
, x
, y
);
256 /* run shader on 4x4 block */
257 variant
->jit_function
[RAST_WHOLE
]( &state
->jit_context
,
266 &task
->vis_counter
);