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
|
/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
#include "intel_context.h"
#include "intel_buffers.h"
#include "intel_fbo.h"
#include "intel_mipmap_tree.h"
#include "main/fbobject.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
/**
* Check if we're about to draw into the front color buffer.
* If so, set the intel->front_buffer_dirty field to true.
*/
void
intel_check_front_buffer_rendering(struct intel_context *intel)
{
const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
if (_mesa_is_winsys_fbo(fb)) {
/* drawing to window system buffer */
if (fb->_NumColorDrawBuffers > 0) {
if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
intel->front_buffer_dirty = true;
}
}
}
}
static void
intelDrawBuffer(struct gl_context * ctx, GLenum mode)
{
if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer)) {
struct intel_context *const intel = intel_context(ctx);
/* If we might be front-buffer rendering on this buffer for the first
* time, invalidate our DRI drawable so we'll ask for new buffers
* (including the fake front) before we start rendering again.
*/
dri2InvalidateDrawable(intel->driContext->driDrawablePriv);
}
intel_draw_buffer(ctx);
}
static void
intelReadBuffer(struct gl_context * ctx, GLenum mode)
{
if (_mesa_is_front_buffer_reading(ctx->ReadBuffer)) {
struct intel_context *const intel = intel_context(ctx);
/* If we might be front-buffer reading on this buffer for the first
* time, invalidate our DRI drawable so we'll ask for new buffers
* (including the fake front) before we start reading again.
*/
dri2InvalidateDrawable(intel->driContext->driReadablePriv);
}
}
void
intelInitBufferFuncs(struct dd_function_table *functions)
{
functions->DrawBuffer = intelDrawBuffer;
functions->ReadBuffer = intelReadBuffer;
}
|
