void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
{
const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display,
monitor->x11.crtc);
XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
monitor->x11.crtc);
_glfwAllocGammaArrays(ramp, size);
memcpy(ramp->red, gamma->red, size * sizeof(unsigned short));
memcpy(ramp->green, gamma->green, size * sizeof(unsigned short));
memcpy(ramp->blue, gamma->blue, size * sizeof(unsigned short));
XRRFreeGamma(gamma);
}
#if defined(_GLFW_HAS_XF86VM)
else if (_glfw.x11.vidmode.available)
{
int size;
XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
_glfwAllocGammaArrays(ramp, size);
XF86VidModeGetGammaRamp(_glfw.x11.display,
_glfw.x11.screen,
ramp->size, ramp->red, ramp->green, ramp->blue);
}
#endif /*_GLFW_HAS_XF86VM*/
}
GLFWbool _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
{
const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display,
monitor->x11.crtc);
XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
monitor->x11.crtc);
_glfwAllocGammaArrays(ramp, size);
memcpy(ramp->red, gamma->red, size * sizeof(unsigned short));
memcpy(ramp->green, gamma->green, size * sizeof(unsigned short));
memcpy(ramp->blue, gamma->blue, size * sizeof(unsigned short));
XRRFreeGamma(gamma);
return GLFW_TRUE;
}
else if (_glfw.x11.vidmode.available)
{
int size;
XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
_glfwAllocGammaArrays(ramp, size);
XF86VidModeGetGammaRamp(_glfw.x11.display,
_glfw.x11.screen,
ramp->size, ramp->red, ramp->green, ramp->blue);
return GLFW_TRUE;
}
else
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Gamma ramp access not supported by server");
return GLFW_FALSE;
}
}
void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
HDC dc;
WORD values[768];
dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
GetDeviceGammaRamp(dc, values);
DeleteDC(dc);
_glfwAllocGammaArrays(ramp, 256);
memcpy(ramp->red, values + 0, 256 * sizeof(unsigned short));
memcpy(ramp->green, values + 256, 256 * sizeof(unsigned short));
memcpy(ramp->blue, values + 512, 256 * sizeof(unsigned short));
}
void _glfwPlatformGetGammaRamp(_GLFWmonitor *monitor, GLFWgammaramp *ramp) {
HDC dc;
WORD values[768];
DISPLAY_DEVICE display;
ZeroMemory(&display, sizeof(DISPLAY_DEVICE));
display.cb = sizeof(DISPLAY_DEVICE);
EnumDisplayDevices(monitor->win32.name, 0, &display, 0);
dc = CreateDC(L"DISPLAY", display.DeviceString, NULL, NULL);
GetDeviceGammaRamp(dc, values);
DeleteDC(dc);
_glfwAllocGammaArrays(ramp, 256);
memcpy(ramp->red, values + 0, 256 * sizeof(unsigned short));
memcpy(ramp->green, values + 256, 256 * sizeof(unsigned short));
memcpy(ramp->blue, values + 512, 256 * sizeof(unsigned short));
}
void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
uint32_t i, size = CGDisplayGammaTableCapacity(monitor->ns.displayID);
CGGammaValue* values = calloc(size * 3, sizeof(CGGammaValue));
CGGetDisplayTransferByTable(monitor->ns.displayID,
size,
values,
values + size,
values + size * 2,
&size);
_glfwAllocGammaArrays(ramp, size);
for (i = 0; i < size; i++)
{
ramp->red[i] = (unsigned short) (values[i] * 65535);
ramp->green[i] = (unsigned short) (values[i + size] * 65535);
ramp->blue[i] = (unsigned short) (values[i + size * 2] * 65535);
}
free(values);
}