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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/**************************************************************************
*
* Copyright 2010 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 <windows.h>
#define WGL_WGLEXT_PROTOTYPES
#include <GL/gl.h>
#include <GL/wglext.h>
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "stw_device.h"
#include "stw_pixelformat.h"
#include "stw_framebuffer.h"
HPBUFFERARB WINAPI
wglCreatePbufferARB(HDC _hDC,
int iPixelFormat,
int iWidth,
int iHeight,
const int *piAttribList)
{
static boolean first = TRUE;
const int *piAttrib;
int useLargest = 0;
const struct stw_pixelformat_info *info;
struct stw_framebuffer *fb;
HWND hWnd;
HDC hDC;
info = stw_pixelformat_get_info(iPixelFormat);
if (!info) {
SetLastError(ERROR_INVALID_PIXEL_FORMAT);
return 0;
}
if (iWidth <= 0 || iHeight <= 0) {
SetLastError(ERROR_INVALID_DATA);
return 0;
}
for (piAttrib = piAttribList; *piAttrib; piAttrib++) {
switch (*piAttrib) {
case WGL_PBUFFER_LARGEST_ARB:
piAttrib++;
useLargest = *piAttrib;
break;
default:
SetLastError(ERROR_INVALID_DATA);
return 0;
}
}
if (iWidth > stw_dev->max_2d_length) {
if (useLargest) {
iWidth = stw_dev->max_2d_length;
} else {
SetLastError(ERROR_NO_SYSTEM_RESOURCES);
return 0;
}
}
if (iHeight > stw_dev->max_2d_length) {
if (useLargest) {
iHeight = stw_dev->max_2d_length;
} else {
SetLastError(ERROR_NO_SYSTEM_RESOURCES);
return 0;
}
}
/*
* Implement pbuffers through invisible windows
*/
if (first) {
WNDCLASS wc;
memset(&wc, 0, sizeof wc);
wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.lpfnWndProc = DefWindowProc;
wc.lpszClassName = "wglpbuffer";
wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
RegisterClass(&wc);
first = FALSE;
}
hWnd = CreateWindowEx(0,
"wglpbuffer", /* wc.lpszClassName */
"wglpbuffer",
#if 0 /* Useful for debugging what the application is drawing */
WS_VISIBLE |
#endif
WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT, /* x, y */
iWidth, iHeight,
NULL,
NULL,
NULL,
NULL);
if (!hWnd) {
return 0;
}
hDC = GetDC(hWnd);
if (!hDC) {
return 0;
}
SetPixelFormat(hDC, iPixelFormat, &info->pfd);
fb = stw_framebuffer_create(hDC, iPixelFormat);
if (!fb) {
SetLastError(ERROR_NO_SYSTEM_RESOURCES);
}
return (HPBUFFERARB)fb;
}
HDC WINAPI
wglGetPbufferDCARB(HPBUFFERARB hPbuffer)
{
struct stw_framebuffer *fb;
HDC hDC;
fb = (struct stw_framebuffer *)hPbuffer;
hDC = GetDC(fb->hWnd);
SetPixelFormat(hDC, fb->iPixelFormat, &fb->pfi->pfd);
return hDC;
}
int WINAPI
wglReleasePbufferDCARB(HPBUFFERARB hPbuffer,
HDC hDC)
{
struct stw_framebuffer *fb;
fb = (struct stw_framebuffer *)hPbuffer;
return ReleaseDC(fb->hWnd, hDC);
}
BOOL WINAPI
wglDestroyPbufferARB(HPBUFFERARB hPbuffer)
{
struct stw_framebuffer *fb;
fb = (struct stw_framebuffer *)hPbuffer;
/* This will destroy all our data */
return DestroyWindow(fb->hWnd);
}
BOOL WINAPI
wglQueryPbufferARB(HPBUFFERARB hPbuffer,
int iAttribute,
int *piValue)
{
struct stw_framebuffer *fb;
fb = (struct stw_framebuffer *)hPbuffer;
switch (iAttribute) {
case WGL_PBUFFER_WIDTH_ARB:
*piValue = fb->width;
return TRUE;
case WGL_PBUFFER_HEIGHT_ARB:
*piValue = fb->width;
return TRUE;
case WGL_PBUFFER_LOST_ARB:
/* We assume that no content is ever lost due to display mode change */
*piValue = FALSE;
return TRUE;
default:
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
}
|
