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
|
/**************************************************************************
*
* Copyright 2007 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.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Brian Paul
*/
#include "main/glheader.h"
#include "main/macros.h"
#include "main/context.h"
#include "st_context.h"
#include "st_cb_bitmap.h"
#include "st_cb_flush.h"
#include "st_cb_clear.h"
#include "st_cb_fbo.h"
#include "st_public.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "util/u_gen_mipmap.h"
#include "util/u_blit.h"
static INLINE GLboolean
is_front_buffer_dirty(struct st_context *st)
{
return st->frontbuffer_status == FRONT_STATUS_DIRTY;
}
/**
* Tell the screen to display the front color buffer on-screen.
*/
static void
display_front_buffer(struct st_context *st)
{
GLframebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb
= st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
if (strb) {
struct pipe_surface *front_surf = strb->surface;
/* Hook for copying "fake" frontbuffer if necessary:
*/
st->pipe->screen->flush_frontbuffer( st->pipe->screen, front_surf,
st->pipe->priv );
/*
st->frontbuffer_status = FRONT_STATUS_UNDEFINED;
*/
}
}
void st_flush( struct st_context *st, uint pipeFlushFlags,
struct pipe_fence_handle **fence )
{
FLUSH_VERTICES(st->ctx, 0);
/* Release any vertex buffers that might potentially be accessed in
* successive frames:
*/
st_flush_bitmap(st);
st_flush_clear(st);
util_blit_flush(st->blit);
util_gen_mipmap_flush(st->gen_mipmap);
st->pipe->flush( st->pipe, pipeFlushFlags, fence );
}
/**
* Flush, and wait for completion.
*/
void st_finish( struct st_context *st )
{
struct pipe_fence_handle *fence = NULL;
st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence);
if(fence) {
st->pipe->screen->fence_finish(st->pipe->screen, fence, 0);
st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
}
}
/**
* Called via ctx->Driver.Flush()
*/
static void st_glFlush(GLcontext *ctx)
{
struct st_context *st = ctx->st;
/* Don't call st_finish() here. It is not the state tracker's
* responsibilty to inject sleeps in the hope of avoiding buffer
* synchronization issues. Calling finish() here will just hide
* problems that need to be fixed elsewhere.
*/
st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
if (is_front_buffer_dirty(st)) {
display_front_buffer(st);
}
}
/**
* Called via ctx->Driver.Finish()
*/
static void st_glFinish(GLcontext *ctx)
{
struct st_context *st = ctx->st;
st_finish(st);
if (is_front_buffer_dirty(st)) {
display_front_buffer(st);
}
}
void st_init_flush_functions(struct dd_function_table *functions)
{
functions->Flush = st_glFlush;
functions->Finish = st_glFinish;
}
|
