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Initial implementation of gamma through Cocoa.

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This commit is contained in:
Tai Chi Minh Ralph Eastwood 2011-09-12 22:16:28 +01:00
parent bca0283fdd
commit 688772111d
1 changed files with 23 additions and 0 deletions
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23
src/cocoa_gamma.m
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@ -43,6 +43,18 @@
void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
{
uint32_t sampleCount;
int i;
CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
CGGetDisplayTransferByTable(0, GLFW_GAMMA_RAMP_SIZE, red, green, blue, &sampleCount);
for (i = 0; i < GLFW_GAMMA_RAMP_SIZE; i++)
{
_glfwLibrary.currentRamp.red[i] = red[i] * 65535;
_glfwLibrary.currentRamp.green[i] = green[i] * 65535;
_glfwLibrary.currentRamp.blue[i] = blue[i] * 65535;
}
}
@ -52,5 +64,16 @@ void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
{
int i;
CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
for (i = 0; i < GLFW_GAMMA_RAMP_SIZE; i++)
{
red[i] = ((float)_glfwLibrary.currentRamp.red[i]) / 65535.0f;
blue[i] = ((float)_glfwLibrary.currentRamp.green[i]) / 65535.0f;
green[i] = ((float)_glfwLibrary.currentRamp.blue[i]) / 65535.0f;
}
CGSetDisplayTransferByTable(0, GLFW_GAMMA_RAMP_SIZE, red, green, blue);
}