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132 lines
4.4 KiB
132 lines
4.4 KiB
//======================================================================== |
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// GLFW - An OpenGL library |
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// Platform: Win32/WGL |
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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) 2002-2006 Marcus Geelnard |
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// Copyright (c) 2006-2010 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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////// GLFW platform API ////// |
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////////////////////////////////////////////////////////////////////////// |
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//======================================================================== |
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// Make the OpenGL context associated with the specified window current |
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//======================================================================== |
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void _glfwPlatformMakeContextCurrent(_GLFWwindow* window) |
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{ |
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if (window) |
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wglMakeCurrent(window->WGL.DC, window->WGL.context); |
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else |
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wglMakeCurrent(NULL, NULL); |
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} |
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//======================================================================== |
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// Swap buffers (double-buffering) |
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//======================================================================== |
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void _glfwPlatformSwapBuffers(void) |
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{ |
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_GLFWwindow* window = _glfwLibrary.currentWindow; |
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_glfw_SwapBuffers(window->WGL.DC); |
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} |
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//======================================================================== |
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// Set double buffering swap interval |
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//======================================================================== |
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void _glfwPlatformSwapInterval(int interval) |
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{ |
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_GLFWwindow* window = _glfwLibrary.currentWindow; |
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if (window->WGL.has_WGL_EXT_swap_control) |
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window->WGL.SwapIntervalEXT(interval); |
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} |
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//======================================================================== |
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// Check if the current context supports the specified WGL extension |
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//======================================================================== |
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int _glfwPlatformExtensionSupported(const char* extension) |
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{ |
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const GLubyte* extensions; |
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_GLFWwindow* window = _glfwLibrary.currentWindow; |
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if (window->WGL.GetExtensionsStringEXT != NULL) |
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{ |
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extensions = (GLubyte*) window->WGL.GetExtensionsStringEXT(); |
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if (extensions != NULL) |
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{ |
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if (_glfwStringInExtensionString(extension, extensions)) |
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return GL_TRUE; |
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} |
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} |
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if (window->WGL.GetExtensionsStringARB != NULL) |
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{ |
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extensions = (GLubyte*) window->WGL.GetExtensionsStringARB(window->WGL.DC); |
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if (extensions != NULL) |
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{ |
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if (_glfwStringInExtensionString(extension, extensions)) |
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return GL_TRUE; |
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} |
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} |
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return GL_FALSE; |
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} |
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//======================================================================== |
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// Get the function pointer to an OpenGL function |
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//======================================================================== |
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void* _glfwPlatformGetProcAddress(const char* procname) |
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{ |
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return (void*) wglGetProcAddress(procname); |
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} |
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//======================================================================== |
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// Copies the specified OpenGL state categories from src to dst |
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//======================================================================== |
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void _glfwPlatformCopyContext(_GLFWwindow* src, _GLFWwindow* dst, unsigned long mask) |
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{ |
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if (!wglCopyContext(src->WGL.context, dst->WGL.context, mask)) |
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{ |
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_glfwSetError(GLFW_PLATFORM_ERROR, |
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"Win32/WGL: Failed to copy OpenGL context attributes"); |
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} |
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} |
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