diff options
Diffstat (limited to 'platform/windows/context_gl_win.cpp')
| -rw-r--r-- | platform/windows/context_gl_win.cpp | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/platform/windows/context_gl_win.cpp b/platform/windows/context_gl_win.cpp new file mode 100644 index 0000000000..a8f74fde2c --- /dev/null +++ b/platform/windows/context_gl_win.cpp @@ -0,0 +1,205 @@ +/*************************************************************************/ +/* context_gl_win.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ +#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED) || defined(GLES2_ENABLED) + +// +// C++ Implementation: context_gl_x11 +// +// Description: +// +// +// Author: Juan Linietsky <reduzio@gmail.com>, (C) 2008 +// +// Copyright: See COPYING file that comes with this distribution +// +// + +#define WINVER 0x0500 +#include "context_gl_win.h" + +//#include "drivers/opengl/glwrapper.h" +//#include "ctxgl_procaddr.h" + +#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091 +#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092 +#define WGL_CONTEXT_FLAGS_ARB 0x2094 +#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002 + +typedef HGLRC (APIENTRY* PFNWGLCREATECONTEXTATTRIBSARBPROC)(HDC, HGLRC, const int*); + + +void ContextGL_Win::release_current() { + + + wglMakeCurrent(hDC,NULL); + +} + + +void ContextGL_Win::make_current() { + + wglMakeCurrent(hDC,hRC); +} + +int ContextGL_Win::get_window_width() { + + return OS::get_singleton()->get_video_mode().width; +} + +int ContextGL_Win::get_window_height() { + + return OS::get_singleton()->get_video_mode().height; +} + +void ContextGL_Win::swap_buffers() { + + SwapBuffers(hDC); +} + +/* +static GLWrapperFuncPtr wrapper_get_proc_address(const char* p_function) { + + print_line(String()+"getting proc of: "+p_function); + GLWrapperFuncPtr func=(GLWrapperFuncPtr)get_gl_proc_address(p_function); + if (!func) { + print_line("Couldn't find function: "+String(p_function)); + print_line("error: "+itos(GetLastError())); + } + return func; + +} +*/ + + +Error ContextGL_Win::initialize() { + + static PIXELFORMATDESCRIPTOR pfd= { + sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor + 1, + PFD_DRAW_TO_WINDOW | // Format Must Support Window + PFD_SUPPORT_OPENGL | // Format Must Support OpenGL + PFD_DOUBLEBUFFER, + PFD_TYPE_RGBA, + 24, + 0, 0, 0, 0, 0, 0, // Color Bits Ignored + 0,// No Alpha Buffer + 0,// Shift Bit Ignored + 0,// No Accumulation Buffer + 0, 0, 0, 0,// Accumulation Bits Ignored + 24,// 24Bit Z-Buffer (Depth Buffer) + 0,// No Stencil Buffer + 0,// No Auxiliary Buffer + PFD_MAIN_PLANE, // Main Drawing Layer + 0,// Reserved + 0, 0, 0 // Layer Masks Ignored + }; + + if (!(hDC=GetDC(hWnd))) { + MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return FALSE + } + + if (!(pixel_format=ChoosePixelFormat(hDC,&pfd))) // Did Windows Find A Matching Pixel Format? + { + MessageBox(NULL,"Can't Find A Suitable pixel_format.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return FALSE + } + + if(!SetPixelFormat(hDC,pixel_format,&pfd)) // Are We Able To Set The Pixel Format? + { + MessageBox(NULL,"Can't Set The pixel_format.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return FALSE + } + + if (!(hRC=wglCreateContext(hDC))) // Are We Able To Get A Rendering Context? + { + MessageBox(NULL,"Can't Create A Temporary GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return FALSE + } + + wglMakeCurrent(hDC,hRC); + + if (opengl_3_context) { + + int attribs[] = { + WGL_CONTEXT_MAJOR_VERSION_ARB, 3,//we want a 3.1 context + WGL_CONTEXT_MINOR_VERSION_ARB, 2, + //and it shall be forward compatible so that we can only use up to date functionality + WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB, + 0}; //zero indicates the end of the array + + PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = NULL; //pointer to the method + wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress("wglCreateContextAttribsARB"); + + if(wglCreateContextAttribsARB == NULL) //OpenGL 3.0 is not supported + { + MessageBox(NULL,"Cannot get Proc Adress for CreateContextAttribs", "ERROR",MB_OK|MB_ICONEXCLAMATION); + wglDeleteContext(hRC); + return ERR_CANT_CREATE; + } + + HGLRC new_hRC; + if (!(new_hRC=wglCreateContextAttribsARB(hDC,0, attribs))) + { + wglDeleteContext(hRC); + MessageBox(NULL,"Can't Create An OpenGL 3.1 Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return false + } + wglMakeCurrent(hDC,NULL); + wglDeleteContext(hRC); + hRC=new_hRC; + + if (!wglMakeCurrent(hDC,hRC)) // Try To Activate The Rendering Context + { + MessageBox(NULL,"Can't Activate The GL 3.1 Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); + return ERR_CANT_CREATE; // Return FALSE + } + + printf("Activated GL 3.1 context"); + } + + +// glWrapperInit(wrapper_get_proc_address); + + return OK; +} + +ContextGL_Win::ContextGL_Win(HWND hwnd,bool p_opengl_3_context) { + + opengl_3_context=p_opengl_3_context; + hWnd=hwnd; +} + +ContextGL_Win::~ContextGL_Win() { + + +} + + +#endif |