2010-09-07 11:34:51 -04:00
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//========================================================================
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2015-06-01 16:55:06 -04:00
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// GLFW 3.2 OS X - www.glfw.org
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2010-09-07 11:34:51 -04:00
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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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2010-09-15 21:25:36 -04:00
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//////////////////////////////////////////////////////////////////////////
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2012-12-29 18:45:22 -05:00
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////// GLFW internal API //////
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2010-09-15 21:25:36 -04:00
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//////////////////////////////////////////////////////////////////////////
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2010-09-07 11:34:51 -04:00
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2012-08-13 10:03:44 -04:00
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// Initialize OpenGL support
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2013-02-04 07:22:10 -05:00
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//
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2013-01-15 14:49:29 -05:00
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int _glfwInitContextAPI(void)
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2012-08-13 10:03:44 -04:00
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{
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2015-05-04 21:31:20 -04:00
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if (!_glfwCreateContextTLS())
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-08-13 10:03:44 -04:00
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2013-05-02 16:41:09 -04:00
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_glfw.nsgl.framework =
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CFBundleGetBundleWithIdentifier(CFSTR("com.apple.opengl"));
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if (_glfw.nsgl.framework == NULL)
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{
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2015-03-10 14:51:14 -04:00
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_glfwInputError(GLFW_API_UNAVAILABLE,
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2013-05-02 16:41:09 -04:00
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"NSGL: Failed to locate OpenGL framework");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2013-05-02 16:41:09 -04:00
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}
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2015-08-23 13:30:04 -04:00
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return GLFW_TRUE;
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2012-08-13 10:03:44 -04:00
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}
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// Terminate OpenGL support
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2013-02-04 07:22:10 -05:00
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//
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2013-01-15 14:49:29 -05:00
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void _glfwTerminateContextAPI(void)
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2012-08-13 10:03:44 -04:00
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{
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2015-05-04 21:31:20 -04:00
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_glfwDestroyContextTLS();
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2012-08-13 10:03:44 -04:00
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}
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2012-12-29 18:58:18 -05:00
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// Create the OpenGL context
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2013-02-04 07:22:10 -05:00
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//
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2012-12-29 18:58:18 -05:00
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int _glfwCreateContext(_GLFWwindow* window,
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2014-03-06 14:05:32 -05:00
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const _GLFWctxconfig* ctxconfig,
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2012-12-29 18:58:18 -05:00
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const _GLFWfbconfig* fbconfig)
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{
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unsigned int attributeCount = 0;
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2014-03-06 14:05:32 -05:00
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if (ctxconfig->api == GLFW_OPENGL_ES_API)
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2012-12-29 18:58:18 -05:00
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{
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2015-08-09 07:37:27 -04:00
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"NSGL: OpenGL ES is not available on OS X");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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2014-03-06 14:05:32 -05:00
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if (ctxconfig->major == 3 && ctxconfig->minor < 2)
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2012-12-29 18:58:18 -05:00
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{
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2012-12-31 15:05:28 -05:00
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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2015-03-10 14:51:14 -04:00
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"NSGL: The targeted version of OS X does not support OpenGL 3.0 or 3.1");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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2014-03-06 14:05:32 -05:00
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if (ctxconfig->major > 2)
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2012-12-29 18:58:18 -05:00
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{
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2014-03-06 14:05:32 -05:00
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if (!ctxconfig->forward)
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2012-12-29 18:58:18 -05:00
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{
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2012-12-31 15:05:28 -05:00
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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2015-03-10 14:51:14 -04:00
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"NSGL: The targeted version of OS X only supports forward-compatible contexts for OpenGL 3.2 and above");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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2014-03-06 14:05:32 -05:00
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if (ctxconfig->profile != GLFW_OPENGL_CORE_PROFILE)
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2012-12-29 18:58:18 -05:00
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{
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2012-12-31 15:05:28 -05:00
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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2015-03-10 14:51:14 -04:00
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"NSGL: The targeted version of OS X only supports core profile contexts for OpenGL 3.2 and above");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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}
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2014-08-20 14:12:59 -04:00
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// Context robustness modes (GL_KHR_robustness) are not yet supported on
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// OS X but are not a hard constraint, so ignore and continue
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2012-12-29 18:58:18 -05:00
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2014-08-21 13:21:45 -04:00
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// Context release behaviors (GL_KHR_context_flush_control) are not yet
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// supported on OS X but are not a hard constraint, so ignore and continue
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2012-12-29 18:58:18 -05:00
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#define ADD_ATTR(x) { attributes[attributeCount++] = x; }
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#define ADD_ATTR2(x, y) { ADD_ATTR(x); ADD_ATTR(y); }
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// Arbitrary array size here
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NSOpenGLPixelFormatAttribute attributes[40];
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2014-12-27 16:31:30 -05:00
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ADD_ATTR(NSOpenGLPFAAccelerated);
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2013-05-02 11:35:09 -04:00
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ADD_ATTR(NSOpenGLPFAClosestPolicy);
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2012-12-29 18:58:18 -05:00
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2014-12-27 16:28:13 -05:00
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101000
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if (ctxconfig->major >= 4)
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2014-11-04 18:33:43 -05:00
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{
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2014-12-27 16:28:13 -05:00
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ADD_ATTR2(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion4_1Core);
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2014-11-04 18:33:43 -05:00
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}
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else
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2012-12-29 18:58:18 -05:00
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#endif /*MAC_OS_X_VERSION_MAX_ALLOWED*/
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2014-12-27 16:28:13 -05:00
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if (ctxconfig->major >= 3)
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{
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ADD_ATTR2(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core);
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}
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if (ctxconfig->major <= 2)
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2014-11-04 18:33:43 -05:00
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{
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if (fbconfig->auxBuffers != GLFW_DONT_CARE)
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ADD_ATTR2(NSOpenGLPFAAuxBuffers, fbconfig->auxBuffers);
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if (fbconfig->accumRedBits != GLFW_DONT_CARE &&
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fbconfig->accumGreenBits != GLFW_DONT_CARE &&
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fbconfig->accumBlueBits != GLFW_DONT_CARE &&
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fbconfig->accumAlphaBits != GLFW_DONT_CARE)
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{
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const int accumBits = fbconfig->accumRedBits +
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fbconfig->accumGreenBits +
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fbconfig->accumBlueBits +
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fbconfig->accumAlphaBits;
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ADD_ATTR2(NSOpenGLPFAAccumSize, accumBits);
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}
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}
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2012-12-29 18:58:18 -05:00
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2014-04-08 12:57:43 -04:00
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if (fbconfig->redBits != GLFW_DONT_CARE &&
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fbconfig->greenBits != GLFW_DONT_CARE &&
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fbconfig->blueBits != GLFW_DONT_CARE)
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{
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int colorBits = fbconfig->redBits +
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fbconfig->greenBits +
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fbconfig->blueBits;
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2015-01-05 15:55:15 -05:00
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// OS X needs non-zero color size, so set reasonable values
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2014-04-08 12:57:43 -04:00
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if (colorBits == 0)
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colorBits = 24;
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else if (colorBits < 15)
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colorBits = 15;
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2012-12-29 18:58:18 -05:00
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2014-04-08 12:57:43 -04:00
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ADD_ATTR2(NSOpenGLPFAColorSize, colorBits);
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}
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if (fbconfig->alphaBits != GLFW_DONT_CARE)
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2012-12-29 18:58:18 -05:00
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ADD_ATTR2(NSOpenGLPFAAlphaSize, fbconfig->alphaBits);
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2014-04-08 12:57:43 -04:00
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if (fbconfig->depthBits != GLFW_DONT_CARE)
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2012-12-29 18:58:18 -05:00
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ADD_ATTR2(NSOpenGLPFADepthSize, fbconfig->depthBits);
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2014-04-08 12:57:43 -04:00
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if (fbconfig->stencilBits != GLFW_DONT_CARE)
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2012-12-29 18:58:18 -05:00
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ADD_ATTR2(NSOpenGLPFAStencilSize, fbconfig->stencilBits);
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if (fbconfig->stereo)
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ADD_ATTR(NSOpenGLPFAStereo);
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2014-04-24 13:21:10 -04:00
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if (fbconfig->doublebuffer)
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ADD_ATTR(NSOpenGLPFADoubleBuffer);
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2014-04-08 12:57:43 -04:00
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if (fbconfig->samples != GLFW_DONT_CARE)
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2012-12-29 18:58:18 -05:00
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{
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2014-04-08 12:57:43 -04:00
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if (fbconfig->samples == 0)
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{
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ADD_ATTR2(NSOpenGLPFASampleBuffers, 0);
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}
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else
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{
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ADD_ATTR2(NSOpenGLPFASampleBuffers, 1);
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ADD_ATTR2(NSOpenGLPFASamples, fbconfig->samples);
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}
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2012-12-29 18:58:18 -05:00
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}
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// NOTE: All NSOpenGLPixelFormats on the relevant cards support sRGB
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2015-01-05 15:55:15 -05:00
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// framebuffer, so there's no need (and no way) to request it
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2012-12-29 18:58:18 -05:00
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ADD_ATTR(0);
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#undef ADD_ATTR
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#undef ADD_ATTR2
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2013-01-01 19:40:42 -05:00
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window->nsgl.pixelFormat =
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2012-12-29 18:58:18 -05:00
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[[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
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2013-01-01 19:40:42 -05:00
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if (window->nsgl.pixelFormat == nil)
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2012-12-29 18:58:18 -05:00
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{
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2015-09-16 10:24:21 -04:00
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_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
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"NSGL: Failed to find a suitable pixel format");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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NSOpenGLContext* share = NULL;
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2014-03-06 14:05:32 -05:00
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if (ctxconfig->share)
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share = ctxconfig->share->nsgl.context;
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2012-12-29 18:58:18 -05:00
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2013-01-01 19:40:42 -05:00
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window->nsgl.context =
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[[NSOpenGLContext alloc] initWithFormat:window->nsgl.pixelFormat
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2012-12-29 18:58:18 -05:00
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shareContext:share];
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2013-01-01 19:40:42 -05:00
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if (window->nsgl.context == nil)
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2012-12-29 18:58:18 -05:00
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{
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2015-03-10 14:51:14 -04:00
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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2013-08-26 16:48:07 -04:00
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"NSGL: Failed to create OpenGL context");
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2012-12-29 18:58:18 -05:00
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}
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2015-08-23 13:30:04 -04:00
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return GLFW_TRUE;
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2012-12-29 18:58:18 -05:00
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}
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// Destroy the OpenGL context
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2013-02-04 07:22:10 -05:00
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//
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2012-12-29 18:58:18 -05:00
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void _glfwDestroyContext(_GLFWwindow* window)
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{
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2013-01-01 19:40:42 -05:00
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[window->nsgl.pixelFormat release];
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window->nsgl.pixelFormat = nil;
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2012-12-29 18:58:18 -05:00
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2013-01-01 19:40:42 -05:00
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[window->nsgl.context release];
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window->nsgl.context = nil;
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2012-12-29 18:58:18 -05:00
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}
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2012-12-29 18:45:22 -05:00
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//////////////////////////////////////////////////////////////////////////
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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2011-07-27 10:01:27 -04:00
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void _glfwPlatformMakeContextCurrent(_GLFWwindow* window)
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{
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if (window)
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2013-01-01 19:40:42 -05:00
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[window->nsgl.context makeCurrentContext];
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2011-07-27 10:01:27 -04:00
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else
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[NSOpenGLContext clearCurrentContext];
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2012-08-12 08:13:18 -04:00
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2015-05-04 21:31:20 -04:00
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_glfwSetContextTLS(window);
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2011-07-27 10:01:27 -04:00
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}
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2012-08-06 12:13:37 -04:00
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void _glfwPlatformSwapBuffers(_GLFWwindow* window)
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2011-03-04 08:25:12 -05:00
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{
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// ARP appears to be unnecessary, but this is future-proof
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2013-01-01 19:40:42 -05:00
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[window->nsgl.context flushBuffer];
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2011-03-04 08:25:12 -05:00
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}
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void _glfwPlatformSwapInterval(int interval)
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{
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2012-08-13 10:03:44 -04:00
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_GLFWwindow* window = _glfwPlatformGetCurrentContext();
|
2011-03-04 08:25:12 -05:00
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GLint sync = interval;
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2013-01-01 19:40:42 -05:00
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[window->nsgl.context setValues:&sync forParameter:NSOpenGLCPSwapInterval];
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2011-03-04 08:25:12 -05:00
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}
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2010-09-15 12:57:25 -04:00
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int _glfwPlatformExtensionSupported(const char* extension)
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2010-09-07 11:34:51 -04:00
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{
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2011-03-04 08:29:05 -05:00
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// There are no NSGL extensions
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2015-08-23 13:30:04 -04:00
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return GLFW_FALSE;
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2010-09-07 11:34:51 -04:00
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}
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2012-06-04 18:16:40 -04:00
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GLFWglproc _glfwPlatformGetProcAddress(const char* procname)
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2010-09-07 11:34:51 -04:00
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{
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2010-09-15 12:57:25 -04:00
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CFStringRef symbolName = CFStringCreateWithCString(kCFAllocatorDefault,
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procname,
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kCFStringEncodingASCII);
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2010-09-07 11:34:51 -04:00
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2013-01-01 19:40:42 -05:00
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GLFWglproc symbol = CFBundleGetFunctionPointerForName(_glfw.nsgl.framework,
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2012-06-04 18:16:40 -04:00
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symbolName);
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2010-09-07 11:34:51 -04:00
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2010-09-15 12:57:25 -04:00
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CFRelease(symbolName);
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2010-09-07 11:34:51 -04:00
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return symbol;
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}
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2013-01-15 16:38:14 -05:00
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//////////////////////////////////////////////////////////////////////////
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////// GLFW native API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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2013-02-19 18:28:08 -05:00
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_GLFW_REQUIRE_INIT_OR_RETURN(nil);
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2013-01-15 16:38:14 -05:00
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return window->nsgl.context;
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}
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