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"
35 #include "lp_tile_soa.h"
38 #define MAX_THREADS 8 /* XXX probably temporary here */
47 * A tile's color and depth memory.
48 * We can choose whatever layout for the internal tile storage we prefer.
52 uint8_t *color
[PIPE_MAX_COLOR_BUFS
];
57 * Per-thread rasterization state
59 struct lp_rasterizer_task
61 struct lp_rast_tile tile
; /** Tile color/z/stencil memory */
63 unsigned x
, y
; /**< Pos of this tile in framebuffer, in pixels */
65 const struct lp_rast_state
*current_state
;
68 struct lp_rasterizer
*rast
;
71 unsigned thread_index
;
73 pipe_semaphore work_ready
;
74 pipe_semaphore work_done
;
79 * This is the state required while rasterizing tiles.
80 * Note that this contains per-thread information too.
81 * The tile size is TILE_SIZE x TILE_SIZE pixels.
86 boolean check_for_clipped_tiles
;
90 struct pipe_screen
*screen
;
91 struct pipe_transfer
*cbuf_transfer
[PIPE_MAX_COLOR_BUFS
];
92 struct pipe_transfer
*zsbuf_transfer
;
93 void *cbuf_map
[PIPE_MAX_COLOR_BUFS
];
97 struct pipe_framebuffer_state fb
;
99 boolean write_zstencil
;
100 unsigned clear_color
;
101 unsigned clear_depth
;
105 /** The incoming queue of scenes ready to rasterize */
106 struct lp_scene_queue
*full_scenes
;
107 /** The outgoing queue of processed scenes to return to setup modulee */
108 struct lp_scene_queue
*empty_scenes
;
110 /** The scene currently being rasterized by the threads */
111 struct lp_scene
*curr_scene
;
113 /** A task object for each rasterization thread */
114 struct lp_rasterizer_task tasks
[MAX_THREADS
];
116 unsigned num_threads
;
117 pipe_thread threads
[MAX_THREADS
];
119 /** For synchronizing the rasterization threads */
120 pipe_barrier barrier
;
124 void lp_rast_shade_quads( struct lp_rasterizer
*rast
,
125 unsigned thread_index
,
126 const struct lp_rast_shader_inputs
*inputs
,
127 unsigned x
, unsigned y
,
128 int32_t c1
, int32_t c2
, int32_t c3
);
132 * Get the pointer to the depth buffer for a block.
133 * \param x, y location of 4x4 block in window coords
136 lp_rast_depth_pointer( struct lp_rasterizer
*rast
,
137 unsigned x
, unsigned y
)
140 assert((x
% TILE_VECTOR_WIDTH
) == 0);
141 assert((y
% TILE_VECTOR_HEIGHT
) == 0);
144 assert(rast
->zsbuf_transfer
);
145 depth
= rast
->zsbuf_map
+
146 y
*rast
->zsbuf_transfer
->stride
+
147 TILE_VECTOR_HEIGHT
*x
*util_format_get_blocksize(rast
->zsbuf_transfer
->texture
->format
);
149 assert(lp_check_alignment(depth
, 16));
157 * Shade all pixels in a 4x4 block. The fragment code omits the
158 * triangle in/out tests.
159 * \param x, y location of 4x4 block in window coords
162 lp_rast_shade_quads_all( struct lp_rasterizer
*rast
,
163 unsigned thread_index
,
164 const struct lp_rast_shader_inputs
*inputs
,
165 unsigned x
, unsigned y
)
167 const struct lp_rast_state
*state
= rast
->tasks
[thread_index
].current_state
;
168 struct lp_rast_tile
*tile
= &rast
->tasks
[thread_index
].tile
;
169 const unsigned ix
= x
% TILE_SIZE
, iy
= y
% TILE_SIZE
;
170 uint8_t *color
[PIPE_MAX_COLOR_BUFS
];
172 unsigned block_offset
, i
;
174 /* offset of the containing 16x16 pixel block within the tile */
175 block_offset
= (iy
/ 4) * (16 * 16) + (ix
/ 4) * 16;
178 for (i
= 0; i
< rast
->state
.fb
.nr_cbufs
; i
++)
179 color
[i
] = tile
->color
[i
] + 4 * block_offset
;
181 depth
= lp_rast_depth_pointer(rast
, x
, y
);
184 state
->jit_function
[0]( &state
->jit_context
,
191 INT_MIN
, INT_MIN
, INT_MIN
,