mirror of
https://github.com/glfw/glfw.git
synced 2024-11-23 10:35:10 +00:00
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
//========================================================================
|
|
// GLFW - An OpenGL library
|
|
// Platform: Cocoa
|
|
// API version: 3.0
|
|
// WWW: http://www.glfw.org/
|
|
//------------------------------------------------------------------------
|
|
// Copyright (c) 2010 Camilla Berglund <elmindreda@elmindreda.org>
|
|
//
|
|
// This software is provided 'as-is', without any express or implied
|
|
// warranty. In no event will the authors be held liable for any damages
|
|
// arising from the use of this software.
|
|
//
|
|
// Permission is granted to anyone to use this software for any purpose,
|
|
// including commercial applications, and to alter it and redistribute it
|
|
// freely, subject to the following restrictions:
|
|
//
|
|
// 1. The origin of this software must not be misrepresented; you must not
|
|
// claim that you wrote the original software. If you use this software
|
|
// in a product, an acknowledgment in the product documentation would
|
|
// be appreciated but is not required.
|
|
//
|
|
// 2. Altered source versions must be plainly marked as such, and must not
|
|
// be misrepresented as being the original software.
|
|
//
|
|
// 3. This notice may not be removed or altered from any source
|
|
// distribution.
|
|
//
|
|
//========================================================================
|
|
|
|
#include "internal.h"
|
|
|
|
#include <limits.h>
|
|
#include <string.h>
|
|
|
|
#include <ApplicationServices/ApplicationServices.h>
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW platform API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
|
|
{
|
|
// TODO: Support ramp sizes other than 256
|
|
|
|
uint32_t sampleCount;
|
|
int i;
|
|
CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
|
|
CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
|
|
CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
|
|
|
|
if (CGDisplayGammaTableCapacity(monitor->ns.displayID) !=
|
|
GLFW_GAMMA_RAMP_SIZE)
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"Cocoa: Only gamma ramps of size 256 supported");
|
|
return;
|
|
}
|
|
|
|
CGGetDisplayTransferByTable(monitor->ns.displayID,
|
|
GLFW_GAMMA_RAMP_SIZE,
|
|
red, green, blue,
|
|
&sampleCount);
|
|
|
|
for (i = 0; i < GLFW_GAMMA_RAMP_SIZE; i++)
|
|
{
|
|
ramp->red[i] = red[i] * 65535;
|
|
ramp->green[i] = green[i] * 65535;
|
|
ramp->blue[i] = blue[i] * 65535;
|
|
}
|
|
}
|
|
|
|
void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
|
|
{
|
|
// TODO: Support ramp sizes other than 256
|
|
|
|
int i;
|
|
int size = GLFW_GAMMA_RAMP_SIZE;
|
|
CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
|
|
CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
|
|
CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
|
|
|
|
if (CGDisplayGammaTableCapacity(monitor->ns.displayID) !=
|
|
GLFW_GAMMA_RAMP_SIZE)
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"Cocoa: Only gamma ramps of size 256 supported");
|
|
return;
|
|
}
|
|
|
|
// Convert to float & take the difference of the original gamma and
|
|
// the linear function.
|
|
for (i = 0; i < size; i++)
|
|
{
|
|
red[i] = ramp->red[i] / 65535.f;
|
|
green[i] = ramp->green[i] / 65535.f;
|
|
blue[i] = ramp->blue[i] / 65535.f;
|
|
}
|
|
|
|
CGSetDisplayTransferByTable(monitor->ns.displayID,
|
|
GLFW_GAMMA_RAMP_SIZE,
|
|
red, green, blue);
|
|
}
|
|
|