SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401938
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686 changed files with 117556 additions and 98661 deletions
227
src/video/win32/SDL_win32modes.c
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src/video/win32/SDL_win32modes.c
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include "SDL_win32video.h"
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/* FIXME: Each call to EnumDisplaySettings() takes about 6 ms on my laptop.
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With 500 or so modes, this takes almost 3 seconds to run!
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*/
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static SDL_bool
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WIN_GetDisplayMode(LPCTSTR deviceName, DWORD index, SDL_DisplayMode * mode)
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{
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SDL_DisplayModeData *data;
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DEVMODE devmode;
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HDC hdc;
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devmode.dmSize = sizeof(devmode);
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devmode.dmDriverExtra = 0;
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if (!EnumDisplaySettings(deviceName, index, &devmode)) {
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return SDL_FALSE;
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}
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data = (SDL_DisplayModeData *) SDL_malloc(sizeof(*data));
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if (!data) {
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return SDL_FALSE;
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}
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SDL_memcpy(data->DeviceName, deviceName, sizeof(data->DeviceName));
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data->DeviceMode = devmode;
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data->DeviceMode.dmFields =
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(DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY |
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DM_DISPLAYFLAGS);
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/* Fill in the mode information */
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mode->format = SDL_PixelFormat_Unknown;
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mode->w = devmode.dmPelsWidth;
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mode->h = devmode.dmPelsHeight;
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mode->refresh_rate = devmode.dmDisplayFrequency;
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mode->driverdata = data;
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hdc = CreateDC(deviceName, NULL, NULL, &devmode);
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if (hdc) {
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char bmi_data[sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)];
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LPBITMAPINFO bmi;
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HBITMAP hbm;
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SDL_zero(bmi_data);
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bmi = (LPBITMAPINFO) bmi_data;
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bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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hbm = CreateCompatibleBitmap(hdc, 1, 1);
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GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
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GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
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DeleteObject(hbm);
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DeleteDC(hdc);
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if (bmi->bmiHeader.biCompression == BI_BITFIELDS) {
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switch (*(Uint32 *) bmi->bmiColors) {
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case 0x00FF0000:
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mode->format = SDL_PixelFormat_RGB888;
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break;
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case 0x000000FF:
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mode->format = SDL_PixelFormat_BGR888;
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break;
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case 0xF800:
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mode->format = SDL_PixelFormat_RGB565;
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break;
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case 0x7C00:
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mode->format = SDL_PixelFormat_RGB555;
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break;
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}
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} else if (bmi->bmiHeader.biBitCount == 8) {
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mode->format = SDL_PixelFormat_Index8;
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}
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} else {
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switch (devmode.dmBitsPerPel) {
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case 32:
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mode->format = SDL_PixelFormat_RGB888;
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break;
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case 24:
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mode->format = SDL_PixelFormat_RGB24;
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break;
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case 16:
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mode->format = SDL_PixelFormat_RGB565;
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break;
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case 15:
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mode->format = SDL_PixelFormat_RGB555;
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break;
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case 8:
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mode->format = SDL_PixelFormat_Index8;
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break;
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}
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}
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return SDL_TRUE;
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}
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void
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WIN_InitModes(_THIS)
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{
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SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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DWORD i, j;
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DISPLAY_DEVICE device;
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device.cb = sizeof(device);
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for (i = 0;; ++i) {
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TCHAR DeviceName[32];
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if (!EnumDisplayDevices(NULL, i, &device, 0)) {
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break;
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}
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if (!(device.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)) {
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continue;
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}
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SDL_memcpy(DeviceName, device.DeviceName, sizeof(DeviceName));
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#ifdef DEBUG_MODES
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printf("Device: %s\n", WIN_StringToUTF8(DeviceName));
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#endif
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for (j = 0;; ++j) {
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SDL_VideoDisplay display;
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SDL_DisplayData *displaydata;
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SDL_DisplayMode mode;
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if (!EnumDisplayDevices(DeviceName, j, &device, 0)) {
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break;
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}
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if (!(device.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)) {
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continue;
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}
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#ifdef DEBUG_MODES
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printf("Monitor: %s\n", WIN_StringToUTF8(device.DeviceName));
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#endif
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if (!WIN_GetDisplayMode(DeviceName, ENUM_CURRENT_SETTINGS, &mode)) {
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break;
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}
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displaydata =
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(SDL_DisplayData *) SDL_malloc(sizeof(*displaydata));
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if (!displaydata) {
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continue;
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}
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SDL_memcpy(displaydata->DeviceName, DeviceName,
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sizeof(DeviceName));
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SDL_zero(display);
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display.desktop_mode = mode;
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display.current_mode = mode;
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display.driverdata = displaydata;
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SDL_AddVideoDisplay(&display);
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}
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}
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}
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void
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WIN_GetDisplayModes(_THIS)
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{
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SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata;
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DWORD i;
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SDL_DisplayMode mode;
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for (i = 0;; ++i) {
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if (!WIN_GetDisplayMode(data->DeviceName, i, &mode)) {
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break;
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}
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if (!SDL_AddDisplayMode(_this->current_display, &mode)) {
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SDL_free(mode.driverdata);
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}
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}
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}
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int
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WIN_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
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{
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SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata;
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LONG status;
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status =
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ChangeDisplaySettingsEx(data->DeviceName, &data->DeviceMode, NULL,
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CDS_FULLSCREEN, NULL);
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if (status == DISP_CHANGE_SUCCESSFUL) {
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return 0;
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} else {
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const char *reason = "Unknown reason";
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switch (status) {
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case DISP_CHANGE_BADFLAGS:
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reason = "DISP_CHANGE_BADFLAGS";
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break;
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case DISP_CHANGE_BADMODE:
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reason = "DISP_CHANGE_BADMODE";
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break;
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case DISP_CHANGE_BADPARAM:
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reason = "DISP_CHANGE_BADPARAM";
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break;
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case DISP_CHANGE_FAILED:
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reason = "DISP_CHANGE_FAILED";
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break;
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}
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SDL_SetError("ChangeDisplaySettingsEx() failed: %s", reason);
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return -1;
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}
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}
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void
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WIN_QuitModes(_THIS)
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{
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ChangeDisplaySettingsEx(NULL, NULL, NULL, 0, NULL);
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}
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/* vi: set ts=4 sw=4 expandtab: */
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