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84 lines
3.0 KiB
84 lines
3.0 KiB
//======================================================================== |
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// GLFW 3.1 OS X - www.glfw.org |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2010 Camilla Berglund <elmindreda@elmindreda.org> |
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// |
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// This software is provided 'as-is', without any express or implied |
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// warranty. In no event will the authors be held liable for any damages |
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// arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it |
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// freely, subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; you must not |
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// claim that you wrote the original software. If you use this software |
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// in a product, an acknowledgment in the product documentation would |
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// be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, and must not |
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// be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source |
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// distribution. |
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// |
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//======================================================================== |
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#include "internal.h" |
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#include <limits.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ApplicationServices/ApplicationServices.h> |
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////////////////////////////////////////////////////////////////////////// |
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////// GLFW platform API ////// |
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////////////////////////////////////////////////////////////////////////// |
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp) |
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{ |
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uint32_t i, size = CGDisplayGammaTableCapacity(monitor->ns.displayID); |
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CGGammaValue* values = calloc(size * 3, sizeof(CGGammaValue)); |
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CGGetDisplayTransferByTable(monitor->ns.displayID, |
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size, |
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values, |
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values + size, |
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values + size * 2, |
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&size); |
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_glfwAllocGammaArrays(ramp, size); |
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for (i = 0; i < size; i++) |
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{ |
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ramp->red[i] = (unsigned short) (values[i] * 65535); |
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ramp->green[i] = (unsigned short) (values[i + size] * 65535); |
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ramp->blue[i] = (unsigned short) (values[i + size * 2] * 65535); |
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} |
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free(values); |
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} |
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp) |
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{ |
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int i; |
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CGGammaValue* values = calloc(ramp->size * 3, sizeof(CGGammaValue)); |
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for (i = 0; i < ramp->size; i++) |
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{ |
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values[i] = ramp->red[i] / 65535.f; |
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values[i + ramp->size] = ramp->green[i] / 65535.f; |
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values[i + ramp->size * 2] = ramp->blue[i] / 65535.f; |
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} |
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CGSetDisplayTransferByTable(monitor->ns.displayID, |
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ramp->size, |
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values, |
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values + ramp->size, |
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values + ramp->size * 2); |
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free(values); |
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} |
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