aboutsummaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/llvmpipe/lp_setup_context.h
blob: 7410ac70b8166ce28f11d9cb9cfe0bbfcb79c629 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/**************************************************************************
 *
 * Copyright 2007-2009 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_SETUP_CONTEXT_H
#define LP_SETUP_CONTEXT_H

#include "lp_setup.h"
#include "lp_rast.h"

/* We're limited to 2K by 2K for 32bit fixed point rasterization.
 * Will need a 64-bit version for larger framebuffers.
 */
#define MAXHEIGHT 2048
#define MAXWIDTH 2048
#define TILES_X (MAXWIDTH / TILESIZE)
#define TILES_Y (MAXHEIGHT / TILESIZE)

#define CMD_BLOCK_MAX 128
#define DATA_BLOCK_SIZE (16 * 1024 - sizeof(unsigned) - sizeof(void *))
   

/* switch to a non-pointer value for this:
 */
typedef void (*lp_rast_cmd)( struct lp_rasterizer *, const union lp_rast_cmd_arg * );

struct cmd_block {
   lp_rast_cmd cmd[CMD_BLOCK_MAX];
   const union lp_rast_cmd_arg *arg[CMD_BLOCK_MAX];
   unsigned count;
   struct cmd_block *next;
};

struct data_block {
   ubyte data[DATA_BLOCK_SIZE];
   unsigned used;
   struct data_block *next;
};

struct cmd_block_list {
   struct cmd_block *head;
   struct cmd_block *tail;
};

struct data_block_list {
   struct data_block *head;
   struct data_block *tail;
};
   

struct setup_context {

   struct lp_rasterizer *rast;

   /* When there are multiple threads, will want to double-buffer the
    * bin arrays:
    */
   struct cmd_block_list tile[TILES_X][TILES_Y];
   struct data_block_list data;

   unsigned tiles_x;
   unsigned tiles_y;

   struct {
      struct pipe_surface *cbuf;
      struct pipe_surface *zsbuf;
      unsigned width;
      unsigned height;
   } fb;

   struct {
      unsigned flags;
      union lp_rast_cmd_arg color;
      union lp_rast_cmd_arg zstencil;
   } clear;

   enum {
      SETUP_FLUSHED,
      SETUP_CLEARED,
      SETUP_ACTIVE
   } state;
   
   struct {
      struct lp_shader_input input[PIPE_MAX_ATTRIBS];
      unsigned nr_inputs;
   } fs;

   void (*point)( struct setup_context *,
                  const float (*v0)[4]);

   void (*line)( struct setup_context *,
                 const float (*v0)[4],
                 const float (*v1)[4]);

   void (*triangle)( struct setup_context *,
                     const float (*v0)[4],
                     const float (*v1)[4],
                     const float (*v2)[4]);
};

void lp_setup_choose_triangle( struct setup_context *setup );
void lp_setup_choose_line( struct setup_context *setup );
void lp_setup_choose_point( struct setup_context *setup );


void lp_setup_new_data_block( struct data_block_list *list );
void lp_setup_new_cmd_block( struct cmd_block_list *list );

static INLINE void *get_data( struct data_block_list *list,
                              unsigned size)
{

   if (list->tail->used + size > DATA_BLOCK_SIZE) {
      lp_setup_new_data_block( list );
   }

   {
      struct data_block *tail = list->tail;
      ubyte *data = tail->data + tail->used;
      tail->used += size;
      return data;
   }
}

/* Add a command to a given bin.
 */
static INLINE void bin_cmd( struct cmd_block_list *list,
                            lp_rast_cmd cmd,
                            const union lp_rast_cmd_arg *arg )
{
   if (list->tail->count == CMD_BLOCK_MAX) {
      lp_setup_new_cmd_block( list );
   }

   {
      struct cmd_block *tail = list->tail;
      unsigned i = tail->count;
      tail->cmd[i] = cmd;
      tail->arg[i] = arg;
      tail->count++;
   }
}



#endif