st_cb_flush.c revision a85535b7cb0886f23e5686e37d1fa54394cdece4 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 TUNGSTEN GRAPHICS 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.
25 *
26 **************************************************************************/
27
28 /*
29  * Authors:
30  *   Keith Whitwell <keith@tungstengraphics.com>
31  *   Brian Paul
32  */
33
34#include "main/glheader.h"
35#include "main/macros.h"
36#include "main/context.h"
37#include "st_context.h"
38#include "st_cb_flush.h"
39#include "st_cb_fbo.h"
40#include "st_public.h"
41#include "pipe/p_context.h"
42#include "pipe/p_defines.h"
43#include "pipe/p_winsys.h"
44
45
46void st_flush( struct st_context *st, uint pipeFlushFlags )
47{
48   GLframebuffer *fb = st->ctx->DrawBuffer;
49
50   FLUSH_VERTICES(st->ctx, 0);
51
52   /* If there has been no rendering to the frontbuffer, consider
53    * short-circuiting this, or perhaps pass an "optional" flag down
54    * to the driver so that it can make the decision.
55    */
56   st->pipe->flush( st->pipe, pipeFlushFlags );
57
58   if (!fb)
59      return;
60
61   /* XXX: temporary hack.  This flag should only be set if we do any
62    * rendering to the front buffer.
63    */
64   st->flags.frontbuffer_dirty
65      = (fb->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT);
66
67   if (st->flags.frontbuffer_dirty) {
68      struct st_renderbuffer *strb
69         = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
70      struct pipe_surface *front_surf = strb->surface;
71
72      /* Hook for copying "fake" frontbuffer if necessary:
73       */
74      st->pipe->winsys->flush_frontbuffer( st->pipe->winsys, front_surf,
75                                           st->pipe->priv );
76      st->flags.frontbuffer_dirty = 0;
77   }
78}
79
80
81/**
82 * Called via ctx->Driver.Flush()
83 */
84static void st_Flush(GLcontext *ctx)
85{
86   st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE);
87}
88
89
90/**
91 * Called via ctx->Driver.Finish()
92 */
93static void st_Finish(GLcontext *ctx)
94{
95   st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_WAIT);
96}
97
98
99void st_init_flush_functions(struct dd_function_table *functions)
100{
101   functions->Flush = st_Flush;
102   functions->Finish = st_Finish;
103}
104