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Simplified Win32 video mode enumeration.

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This commit is contained in:
Camilla Berglund 2012-07-06 22:52:53 +02:00
parent c68a4aa2ef
commit 9498ac52b9
1 changed files with 26 additions and 40 deletions
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66
src/win32_fullscreen.c
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@ -184,64 +184,50 @@ void _glfwRestoreVideoMode(void)
int _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, GLFWvidmode* list, int maxcount)
{
DEVMODE deviceMode;
DWORD deviceModeNum;
DWORD deviceModeIndex = 0;
int modeCount = 0;
GLFWvidmode* vidModes;
int vidModesCount;
GLFWvidmode vidMode;
deviceMode.dmSize = sizeof(DEVMODE);
deviceModeNum = 0;
vidModes = NULL;
vidModesCount = 0;
WCHAR* deviceName = _glfwCreateWideStringFromUTF8(monitor->Win32.name);
if (!deviceName)
return 0;
for (;;)
{
BOOL result;
WCHAR* wideName = _glfwCreateWideStringFromUTF8(monitor->Win32.name);
if (!wideName)
break;
GLFWvidmode mode;
DEVMODE deviceMode;
result = EnumDisplaySettings(wideName, deviceModeNum, &deviceMode);
free(wideName);
ZeroMemory(&deviceMode, sizeof(DEVMODE));
deviceMode.dmSize = sizeof(DEVMODE);
if (!result)
if (!EnumDisplaySettings(deviceName, deviceModeIndex, &deviceMode))
break;
if (vidModesCount >= maxcount)
break;
deviceModeNum++;
deviceModeIndex++;
if (deviceMode.dmBitsPerPel < 15)
continue;
vidMode.height = deviceMode.dmPelsHeight;
vidMode.width = deviceMode.dmPelsWidth;
// Convert to RGB, and back to bpp ("mask out" alpha bits etc)
mode.height = deviceMode.dmPelsHeight;
mode.width = deviceMode.dmPelsWidth;
_glfwSplitBPP(deviceMode.dmBitsPerPel,
&vidMode.redBits,
&vidMode.greenBits,
&vidMode.blueBits);
&mode.redBits,
&mode.greenBits,
&mode.blueBits);
// skip duplicates.
if (vidModes && bsearch(&vidMode, vidModes, vidModesCount, sizeof(GLFWvidmode), _glfwCompareVideoModes))
// Skip duplicate modes
if (bsearch(&mode, list, modeCount, sizeof(GLFWvidmode), _glfwCompareVideoModes))
continue;
vidModes = realloc(vidModes, sizeof(GLFWvidmode) * ++vidModesCount);
memcpy(vidModes + (vidModesCount - 1), &vidMode, sizeof(GLFWvidmode));
list[modeCount] = mode;
modeCount++;
qsort(vidModes, vidModesCount, sizeof(GLFWvidmode), _glfwCompareVideoModes);
qsort(list, modeCount, sizeof(GLFWvidmode), _glfwCompareVideoModes);
if (modeCount >= maxcount)
break;
}
if (list && maxcount)
memcpy(list, vidModes, sizeof(GLFWvidmode) * ((vidModesCount < maxcount) ? vidModesCount : maxcount));
free(vidModes);
return vidModesCount;
free(deviceName);
return modeCount;
}