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102 lines
4.0 KiB
102 lines
4.0 KiB
//======================================================================== |
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// GLFW - An OpenGL framework |
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// Platform: Cocoa/NSOpenGL |
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// API Version: 3.0 |
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// WWW: http://www.glfw.org/ |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2009-2010 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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//======================================================================== |
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// Check whether the display mode should be included in enumeration |
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//======================================================================== |
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static BOOL modeIsGood( NSDictionary *mode ) |
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{ |
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// This is a bit controversial, if you've got something other than an |
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// LCD computer monitor as an output device you might not want these |
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// checks. You might also want to reject modes which are interlaced, |
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// or TV out. There is no one-size-fits-all policy that can work here. |
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// This seems like a decent compromise, but certain applications may |
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// wish to patch this... |
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return [[mode objectForKey:(id)kCGDisplayBitsPerPixel] intValue] >= 15 && |
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[mode objectForKey:(id)kCGDisplayModeIsSafeForHardware] != nil && |
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[mode objectForKey:(id)kCGDisplayModeIsStretched] == nil; |
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} |
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//======================================================================== |
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// Convert Core Graphics display mode to GLFW video mode |
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//======================================================================== |
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static GLFWvidmode vidmodeFromCGDisplayMode( NSDictionary *mode ) |
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{ |
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unsigned int width = [[mode objectForKey:(id)kCGDisplayWidth] unsignedIntValue]; |
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unsigned int height = [[mode objectForKey:(id)kCGDisplayHeight] unsignedIntValue]; |
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unsigned int bps = [[mode objectForKey:(id)kCGDisplayBitsPerSample] unsignedIntValue]; |
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GLFWvidmode result; |
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result.Width = width; |
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result.Height = height; |
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result.RedBits = bps; |
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result.GreenBits = bps; |
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result.BlueBits = bps; |
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return result; |
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} |
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//************************************************************************ |
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//**** Platform implementation functions **** |
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//************************************************************************ |
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//======================================================================== |
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// Get a list of available video modes |
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//======================================================================== |
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int _glfwPlatformGetVideoModes( GLFWvidmode *list, int maxcount ) |
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{ |
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NSArray *modes = (NSArray *)CGDisplayAvailableModes( CGMainDisplayID() ); |
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unsigned int i, j = 0, n = [modes count]; |
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for( i = 0; i < n && i < (unsigned)maxcount; i++ ) |
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{ |
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NSDictionary *mode = [modes objectAtIndex:i]; |
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if( modeIsGood( mode ) ) |
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{ |
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list[j++] = vidmodeFromCGDisplayMode( mode ); |
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} |
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} |
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return j; |
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} |
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//======================================================================== |
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// Get the desktop video mode |
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//======================================================================== |
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void _glfwPlatformGetDesktopMode( GLFWvidmode *mode ) |
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{ |
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*mode = vidmodeFromCGDisplayMode( _glfwLibrary.DesktopMode ); |
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} |
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