This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_win32video.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
24
#include "SDL_main.h"
25
26
27
28
29
30
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "SDL_win32video.h"
31
#include "SDL_dibrender.h"
32
33
/* Initialization/Query functions */
34
35
36
static int WIN_VideoInit(_THIS);
static int WIN_SetDisplayMode(_THIS, const SDL_DisplayMode * mode);
static void WIN_VideoQuit(_THIS);
37
38
39
40
/* WIN32 driver bootstrap functions */
static int
41
WIN_Available(void)
42
43
44
45
46
{
return (1);
}
static void
47
WIN_DeleteDevice(SDL_VideoDevice * device)
49
SDL_UnregisterApp();
50
SDL_free(device->driverdata);
51
52
53
54
SDL_free(device);
}
static SDL_VideoDevice *
55
WIN_CreateDevice(int devindex)
56
57
58
{
SDL_VideoDevice *device;
59
60
SDL_RegisterApp(NULL, 0, NULL);
61
/* Initialize all variables that we clean on shutdown */
62
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
63
if (device) {
64
65
device->driverdata =
(struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
67
if (!device || !device->driverdata) {
68
69
70
71
SDL_OutOfMemory();
if (device) {
SDL_free(device);
}
72
return NULL;
73
74
75
}
/* Set the function pointers */
76
77
78
79
device->VideoInit = WIN_VideoInit;
device->SetDisplayMode = WIN_SetDisplayMode;
device->VideoQuit = WIN_VideoQuit;
device->PumpEvents = WIN_PumpEvents;
80
81
#undef CreateWindow
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
device->CreateWindow = WIN_CreateWindow;
device->CreateWindowFrom = WIN_CreateWindowFrom;
device->SetWindowTitle = WIN_SetWindowTitle;
device->SetWindowPosition = WIN_SetWindowPosition;
device->SetWindowSize = WIN_SetWindowSize;
device->ShowWindow = WIN_ShowWindow;
device->HideWindow = WIN_HideWindow;
device->RaiseWindow = WIN_RaiseWindow;
device->MaximizeWindow = WIN_MaximizeWindow;
device->MinimizeWindow = WIN_MinimizeWindow;
device->RestoreWindow = WIN_RestoreWindow;
device->SetWindowGrab = WIN_SetWindowGrab;
device->DestroyWindow = WIN_DestroyWindow;
device->GetWindowWMInfo = WIN_GetWindowWMInfo;
device->free = WIN_DeleteDevice;
98
99
100
101
102
103
return device;
}
VideoBootStrap WIN32_bootstrap = {
"win32", "SDL Win32/64 video driver",
104
WIN_Available, WIN_CreateDevice
105
106
107
108
};
int
109
WIN_VideoInit(_THIS)
111
112
int bmi_size;
LPBITMAPINFO bmi;
113
114
SDL_DisplayMode mode;
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
/* Find out the desktop mode */
mode.format = SDL_PixelFormat_Unknown;
mode.w = GetSystemMetrics(SM_CXSCREEN);
mode.h = GetSystemMetrics(SM_CYSCREEN);
mode.refresh_rate = 0;
bmi_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
bmi = (LPBITMAPINFO) SDL_malloc(bmi_size);
if (bmi) {
HDC hdc;
HBITMAP hbm;
SDL_memset(bmi, 0, bmi_size);
bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
hdc = GetDC(NULL);
hbm = CreateCompatibleBitmap(hdc, 1, 1);
GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
DeleteObject(hbm);
ReleaseDC(NULL, hdc);
if (bmi->bmiHeader.biCompression == BI_BITFIELDS) {
switch (*(Uint32 *) bmi->bmiColors) {
case 0x00FF0000:
mode.format = SDL_PixelFormat_RGB888;
break;
case 0x000000FF:
mode.format = SDL_PixelFormat_BGR888;
break;
case 0xF800:
mode.format = SDL_PixelFormat_RGB565;
break;
case 0x7C00:
mode.format = SDL_PixelFormat_RGB555;
break;
}
} else if (bmi->bmiHeader.biBitCount == 8) {
mode.format = SDL_PixelFormat_Index8;
}
}
SDL_AddBasicVideoDisplay(&mode);
SDL_AddRenderDriver(0, &SDL_DIB_RenderDriver);
156
157
158
159
SDL_zero(mode);
SDL_AddDisplayMode(0, &mode);
160
161
162
WIN_AddKeyboard(_this);
WIN_AddMouse(_this);
163
164
165
166
167
/* We're done! */
return 0;
}
static int
168
WIN_SetDisplayMode(_THIS, const SDL_DisplayMode * mode)
169
170
171
172
173
174
{
SDL_CurrentDisplay.current_mode = *mode;
return 0;
}
void
175
WIN_VideoQuit(_THIS)
177
178
WIN_DelKeyboard(_this);
WIN_DelMouse(_this);
179
180
181
}
/* vim: set ts=4 sw=4 expandtab: */