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
213
214
215
216
217
218
219
220
221
222
|
/**************************************************************************
*
* Copyright 2009 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 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
* THE COPYRIGHT HOLDERS, AUTHORS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
/**
* @file
* LLVMpipe support.
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#include <windows.h>
#include "pipe/p_format.h"
#include "pipe/p_context.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "state_tracker/sw_winsys.h"
#include "gdi_sw_winsys.h"
struct gdi_sw_displaytarget
{
enum pipe_format format;
unsigned width;
unsigned height;
unsigned stride;
unsigned size;
void *data;
BITMAPINFO bmi;
};
/** Cast wrapper */
static INLINE struct gdi_sw_displaytarget *
gdi_sw_displaytarget( struct sw_displaytarget *buf )
{
return (struct gdi_sw_displaytarget *)buf;
}
static boolean
gdi_sw_is_displaytarget_format_supported( struct sw_winsys *ws,
enum pipe_format format )
{
switch(format) {
case PIPE_FORMAT_B8G8R8X8_UNORM:
case PIPE_FORMAT_B8G8R8A8_UNORM:
return TRUE;
/* TODO: Support other formats possible with BMPs, as described in
* http://msdn.microsoft.com/en-us/library/dd183376(VS.85).aspx */
default:
return FALSE;
}
}
static void *
gdi_sw_displaytarget_map(struct sw_winsys *ws,
struct sw_displaytarget *dt,
unsigned flags )
{
struct gdi_sw_displaytarget *gdt = gdi_sw_displaytarget(dt);
return gdt->data;
}
static void
gdi_sw_displaytarget_unmap(struct sw_winsys *ws,
struct sw_displaytarget *dt )
{
}
static void
gdi_sw_displaytarget_destroy(struct sw_winsys *winsys,
struct sw_displaytarget *dt)
{
struct gdi_sw_displaytarget *gdt = gdi_sw_displaytarget(dt);
align_free(gdt->data);
FREE(gdt);
}
static struct sw_displaytarget *
gdi_sw_displaytarget_create(struct sw_winsys *winsys,
enum pipe_format format,
unsigned width, unsigned height,
unsigned alignment,
unsigned *stride)
{
struct gdi_sw_displaytarget *gdt;
unsigned cpp;
unsigned bpp;
gdt = CALLOC_STRUCT(gdi_sw_displaytarget);
if(!gdt)
goto no_gdt;
gdt->format = format;
gdt->width = width;
gdt->height = height;
bpp = util_format_get_blocksizebits(format);
cpp = util_format_get_blocksize(format);
gdt->stride = align(width * cpp, alignment);
gdt->size = gdt->stride * height;
gdt->data = align_malloc(gdt->size, alignment);
if(!gdt->data)
goto no_data;
gdt->bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
gdt->bmi.bmiHeader.biWidth = gdt->stride / cpp;
gdt->bmi.bmiHeader.biHeight= -(long)height;
gdt->bmi.bmiHeader.biPlanes = 1;
gdt->bmi.bmiHeader.biBitCount = bpp;
gdt->bmi.bmiHeader.biCompression = BI_RGB;
gdt->bmi.bmiHeader.biSizeImage = 0;
gdt->bmi.bmiHeader.biXPelsPerMeter = 0;
gdt->bmi.bmiHeader.biYPelsPerMeter = 0;
gdt->bmi.bmiHeader.biClrUsed = 0;
gdt->bmi.bmiHeader.biClrImportant = 0;
*stride = gdt->stride;
return (struct sw_displaytarget *)gdt;
no_data:
FREE(gdt);
no_gdt:
return NULL;
}
void
gdi_sw_display( struct sw_winsys *winsys,
struct sw_displaytarget *dt,
HDC hDC )
{
struct gdi_sw_displaytarget *gdt = gdi_sw_displaytarget(dt);
StretchDIBits(hDC,
0, 0, gdt->width, gdt->height,
0, 0, gdt->width, gdt->height,
gdt->data, &gdt->bmi, 0, SRCCOPY);
}
static void
gdi_sw_displaytarget_display(struct sw_winsys *winsys,
struct sw_displaytarget *dt,
void *context_private)
{
/* nasty:
*/
HDC hDC = (HDC)context_private;
gdi_sw_display(winsys, dt, hDC);
}
static void
gdi_sw_destroy(struct sw_winsys *winsys)
{
FREE(winsys);
}
struct sw_winsys *
gdi_create_sw_winsys(void)
{
static struct sw_winsys *winsys;
winsys = CALLOC_STRUCT(sw_winsys);
if(!winsys)
return NULL;
winsys->destroy = gdi_sw_destroy;
winsys->is_displaytarget_format_supported = gdi_sw_is_displaytarget_format_supported;
winsys->displaytarget_create = gdi_sw_displaytarget_create;
winsys->displaytarget_map = gdi_sw_displaytarget_map;
winsys->displaytarget_unmap = gdi_sw_displaytarget_unmap;
winsys->displaytarget_display = gdi_sw_displaytarget_display;
winsys->displaytarget_destroy = gdi_sw_displaytarget_destroy;
return winsys;
}
|
