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
|
/**************************************************************************
*
* Copyright 2006 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 INTEL_FBO_H
#define INTEL_FBO_H
#include <stdbool.h>
#include <assert.h>
#include "main/formats.h"
#include "main/macros.h"
#include "intel_context.h"
#include "intel_mipmap_tree.h"
#include "intel_screen.h"
struct intel_context;
struct intel_mipmap_tree;
struct intel_texture_image;
/**
* Intel renderbuffer, derived from gl_renderbuffer.
*/
struct intel_renderbuffer
{
struct swrast_renderbuffer Base;
struct intel_mipmap_tree *mt; /**< The renderbuffer storage. */
/**
* \name Miptree view
* \{
*
* Multiple renderbuffers may simultaneously wrap a single texture and each
* provide a different view into that texture. The fields below indicate
* which miptree slice is wrapped by this renderbuffer. The fields' values
* are consistent with the 'level' and 'layer' parameters of
* glFramebufferTextureLayer().
*
* For renderbuffers not created with glFramebufferTexture*(), mt_level and
* mt_layer are 0.
*/
unsigned int mt_level;
unsigned int mt_layer;
/** \} */
GLuint draw_x, draw_y; /**< Offset of drawing within the region */
};
/**
* 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.Base.ClassID == INTEL_RB_CLASS)
return irb;
else
return NULL;
}
/**
* \brief Return the framebuffer attachment specified by attIndex.
*
* If the framebuffer lacks the specified attachment, then return null.
*
* If the attached renderbuffer is a wrapper, then return wrapped
* renderbuffer.
*/
static inline struct intel_renderbuffer *
intel_get_renderbuffer(struct gl_framebuffer *fb, gl_buffer_index attIndex)
{
struct gl_renderbuffer *rb;
assert((unsigned)attIndex < ARRAY_SIZE(fb->Attachment));
rb = fb->Attachment[attIndex].Renderbuffer;
if (!rb)
return NULL;
return intel_renderbuffer(rb);
}
static inline mesa_format
intel_rb_format(const struct intel_renderbuffer *rb)
{
return rb->Base.Base.Format;
}
extern struct intel_renderbuffer *
intel_create_renderbuffer(mesa_format format);
struct intel_renderbuffer *
intel_create_private_renderbuffer(mesa_format format);
struct gl_renderbuffer*
intel_create_wrapped_renderbuffer(struct gl_context * ctx,
int width, int height,
mesa_format format);
extern void
intel_fbo_init(struct intel_context *intel);
extern void
intel_flip_renderbuffers(struct gl_framebuffer *fb);
void
intel_renderbuffer_set_draw_offset(struct intel_renderbuffer *irb);
static inline uint32_t
intel_renderbuffer_get_tile_offsets(struct intel_renderbuffer *irb,
uint32_t *tile_x,
uint32_t *tile_y)
{
return intel_miptree_get_tile_offsets(irb->mt, irb->mt_level, irb->mt_layer,
tile_x, tile_y);
}
struct intel_region*
intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex);
#endif /* INTEL_FBO_H */
|
