mirror of
https://github.com/glfw/glfw.git
synced 2024-11-15 06:44:48 +00:00
133 lines
4.4 KiB
C
133 lines
4.4 KiB
C
//========================================================================
|
|
// GLFW - An OpenGL library
|
|
// Platform: Win32/WGL
|
|
// API version: 3.0
|
|
// WWW: http://www.glfw.org/
|
|
//------------------------------------------------------------------------
|
|
// Copyright (c) 2002-2006 Marcus Geelnard
|
|
// Copyright (c) 2006-2010 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"
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW platform API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
//========================================================================
|
|
// Make the OpenGL context associated with the specified window current
|
|
//========================================================================
|
|
|
|
void _glfwPlatformMakeContextCurrent(_GLFWwindow* window)
|
|
{
|
|
if (window)
|
|
wglMakeCurrent(window->WGL.DC, window->WGL.context);
|
|
else
|
|
wglMakeCurrent(NULL, NULL);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Swap buffers (double-buffering)
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSwapBuffers(void)
|
|
{
|
|
_GLFWwindow* window = _glfwLibrary.currentWindow;
|
|
|
|
SwapBuffers(window->WGL.DC);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set double buffering swap interval
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSwapInterval(int interval)
|
|
{
|
|
_GLFWwindow* window = _glfwLibrary.currentWindow;
|
|
|
|
if (window->WGL.EXT_swap_control)
|
|
window->WGL.SwapIntervalEXT(interval);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Check if the current context supports the specified WGL extension
|
|
//========================================================================
|
|
|
|
int _glfwPlatformExtensionSupported(const char* extension)
|
|
{
|
|
const GLubyte* extensions;
|
|
|
|
_GLFWwindow* window = _glfwLibrary.currentWindow;
|
|
|
|
if (window->WGL.GetExtensionsStringEXT != NULL)
|
|
{
|
|
extensions = (GLubyte*) window->WGL.GetExtensionsStringEXT();
|
|
if (extensions != NULL)
|
|
{
|
|
if (_glfwStringInExtensionString(extension, extensions))
|
|
return GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if (window->WGL.GetExtensionsStringARB != NULL)
|
|
{
|
|
extensions = (GLubyte*) window->WGL.GetExtensionsStringARB(window->WGL.DC);
|
|
if (extensions != NULL)
|
|
{
|
|
if (_glfwStringInExtensionString(extension, extensions))
|
|
return GL_TRUE;
|
|
}
|
|
}
|
|
|
|
return GL_FALSE;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Get the function pointer to an OpenGL function
|
|
//========================================================================
|
|
|
|
void* _glfwPlatformGetProcAddress(const char* procname)
|
|
{
|
|
return (void*) wglGetProcAddress(procname);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Copies the specified OpenGL state categories from src to dst
|
|
//========================================================================
|
|
|
|
void _glfwPlatformCopyContext(_GLFWwindow* src, _GLFWwindow* dst, unsigned long mask)
|
|
{
|
|
if (!wglCopyContext(src->WGL.context, dst->WGL.context, mask))
|
|
{
|
|
_glfwSetError(GLFW_PLATFORM_ERROR,
|
|
"Win32/WGL: Failed to copy OpenGL context attributes");
|
|
}
|
|
}
|
|
|