summaryrefslogtreecommitdiffstats
path: root/src/mesa/drivers/dri/intel/intel_fbo.h
blob: 50a8a959858fc71baad70496e88a7364f6196083 (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
/**************************************************************************
 * 
 * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
 * 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 TUNGSTEN GRAPHICS 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 INTEL_FBO_H
#define INTEL_FBO_H

#include "main/formats.h"
#include "intel_screen.h"

struct intel_context;

/**
 * Intel framebuffer, derived from gl_framebuffer.
 */
struct intel_framebuffer
{
   struct gl_framebuffer Base;

   struct intel_renderbuffer *color_rb[2];

   /* VBI
    */
   GLuint vbl_waited;

   int64_t swap_ust;
   int64_t swap_missed_ust;

   GLuint swap_count;
   GLuint swap_missed_count;
};


/**
 * Intel renderbuffer, derived from gl_renderbuffer.
 */
struct intel_renderbuffer
{
   struct gl_renderbuffer Base;
   struct intel_region *region;

   gl_format texformat;

   GLuint vbl_pending;   /**< vblank sequence number of pending flip */

   uint8_t *span_cache;
   unsigned long span_cache_offset;
};


/**
 * gl_renderbuffer is a base class which we subclass.  The Class field
 * is used for simple run-time type checking.
 */
#define INTEL_RB_CLASS 0x12345678


/**
 * Return a gl_renderbuffer ptr casted to intel_renderbuffer.
 * NULL will be returned if the rb isn't really an intel_renderbuffer.
 * This is determined by checking the ClassID.
 */
static INLINE struct intel_renderbuffer *
intel_renderbuffer(struct gl_renderbuffer *rb)
{
   struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb;
   if (irb && irb->Base.ClassID == INTEL_RB_CLASS) {
      /*_mesa_warning(NULL, "Returning non-intel Rb\n");*/
      return irb;
   }
   else
      return NULL;
}


/**
 * Return a framebuffer's renderbuffer, named by a BUFFER_x index.
 */
static INLINE struct intel_renderbuffer *
intel_get_renderbuffer(struct gl_framebuffer *fb, int attIndex)
{
   if (attIndex >= 0)
      return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer);
   else
      return NULL;
}


extern void
intel_renderbuffer_set_region(struct intel_renderbuffer *irb,
			      struct intel_region *region);


extern struct intel_renderbuffer *
intel_create_renderbuffer(gl_format format);


extern void
intel_fbo_init(struct intel_context *intel);


extern void
intel_flip_renderbuffers(struct intel_framebuffer *intel_fb);


static INLINE struct intel_region *
intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex)
{
   struct intel_renderbuffer *irb = intel_get_renderbuffer(fb, attIndex);
   if (irb)
      return irb->region;
   else
      return NULL;
}


#endif /* INTEL_FBO_H */