| //======================================================================== |
| // GLFW 3.0 OS X - 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 <stdlib.h> |
| #include <string.h> |
| |
| #include <ApplicationServices/ApplicationServices.h> |
| |
| |
| ////////////////////////////////////////////////////////////////////////// |
| ////// GLFW platform API ////// |
| ////////////////////////////////////////////////////////////////////////// |
| |
| 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); |
| } |
| |
| void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp) |
| { |
| int i; |
| CGGammaValue* values = calloc(ramp->size * 3, sizeof(CGGammaValue)); |
| |
| for (i = 0; i < ramp->size; i++) |
| { |
| values[i] = ramp->red[i] / 65535.f; |
| values[i + ramp->size] = ramp->green[i] / 65535.f; |
| values[i + ramp->size * 2] = ramp->blue[i] / 65535.f; |
| } |
| |
| CGSetDisplayTransferByTable(monitor->ns.displayID, |
| ramp->size, |
| values, |
| values + ramp->size, |
| values + ramp->size * 2); |
| |
| free(values); |
| } |
| |