mirror of
https://github.com/edubart/otclient.git
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118 lines
4.6 KiB
C++
118 lines
4.6 KiB
C++
/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "graphicscontextwgl.h"
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#include <framework/platform/win32window.h>
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GraphicsContextWGL::GraphicsContextWGL() :
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GraphicsContext("WGL")
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{
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m_wglContext = 0;
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}
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void GraphicsContextWGL::create()
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{
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HDC display = g_win32Window.getDisplay();
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uint pixelFormat;
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static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR),
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1,
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PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
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PFD_TYPE_RGBA,
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32, // Select Our Color Depth
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8, 0, 8, 0, 8, 0, // Color Bits Ignored
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8, // Alpha Buffer Bits
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0, // Shift Bit Ignored
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0, // No Accumulation Buffer
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0, 0, 0, 0, // Accumulation Bits Ignored
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0, // Z-Buffer (Depth Buffer)
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0, // No Stencil Buffer
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0, // No Auxiliary Buffer
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PFD_MAIN_PLANE, // Main Drawing Layer
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0, // Reserved
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0, 0, 0 }; // Layer Masks Ignored
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pixelFormat = ChoosePixelFormat(display, &pfd);
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if(!pixelFormat)
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g_logger.fatal("Could not find a suitable pixel format");
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if(!SetPixelFormat(display, pixelFormat, &pfd))
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g_logger.fatal("Could not set the pixel format");
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if(!(m_wglContext = wglCreateContext(display)))
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g_logger.fatal("Unable to create GL context");
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}
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void GraphicsContextWGL::destroy()
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{
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if(m_wglContext) {
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if(!wglMakeCurrent(NULL, NULL))
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g_logger.error("Release of dc and rc failed.");
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if(!wglDeleteContext(m_wglContext))
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g_logger.error("Release rendering context failed.");
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m_wglContext = NULL;
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}
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}
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void GraphicsContextWGL::restore()
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{
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if(!wglMakeCurrent(g_win32Window.getDisplay(), m_wglContext))
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g_logger.fatal("Unable to make current WGL context");
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}
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bool GraphicsContextWGL::isExtensionSupported(const char *ext)
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{
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typedef const char* (WINAPI * wglGetExtensionsStringProc)();
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wglGetExtensionsStringProc wglGetExtensionsString = (wglGetExtensionsStringProc)getExtensionProcAddress("wglGetExtensionsStringEXT");
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if(!wglGetExtensionsString)
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return false;
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const char *exts = wglGetExtensionsString();
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if(exts && strstr(exts, ext))
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return true;
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return false;
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}
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void *GraphicsContextWGL::getExtensionProcAddress(const char *ext)
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{
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return (void*)wglGetProcAddress(ext);
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}
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void GraphicsContextWGL::swapBuffers()
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{
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SwapBuffers(g_win32Window.getDisplay());
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}
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void GraphicsContextWGL::setVerticalSync(bool enable)
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{
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if(!isExtensionSupported("WGL_EXT_swap_control"))
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return;
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typedef BOOL (WINAPI * wglSwapIntervalProc)(int);
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wglSwapIntervalProc wglSwapInterval = (wglSwapIntervalProc)getExtensionProcAddress("wglSwapIntervalEXT");
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if(!wglSwapInterval)
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return;
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wglSwapInterval(enable ? 1 : 0);
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}
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