sdl-ios-xcode: src/video/win32/SDL_win32opengl.c annotate

annotate src/video/win32/SDL_win32opengl.c @ 3105:cdeee9f9b14b

Fixed bug #721 From michalziulek@gmail.com 2009-03-28 07:43:34 (-) [reply] There is a bug in OpenGL 3.x context creation code. Function glXGetProcAddress is used directly where it should be: _this->gl_data->glXGetProcAddress. I have attached patch which fixes this on x11 and win32. Thanks.

author	Sam Lantinga <slouken@libsdl.org>
date	Fri, 03 Apr 2009 17:19:05 +0000
parents	7dc982143c06
children	7f684f249ec9

rev	line source
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 #include "SDL_win32video.h"
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 /* WGL implementation of SDL OpenGL support */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	28 #if SDL_VIDEO_OPENGL_WGL
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #include "SDL_opengl.h"
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	31 #define DEFAULT_OPENGL "OPENGL32.DLL"
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32
3100 7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	33 #ifndef WGL_ARB_create_context
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	34 #define WGL_ARB_create_context
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	35 #define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	36 #define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	37 #define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	38 #define WGL_CONTEXT_FLAGS_ARB 0x2093
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	39 #define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	40 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	41 #endif
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	42
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	43 typedef HGLRC (APIENTRYP PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int * attribList);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 WIN_GL_LoadLibrary(_THIS, const char *path)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 LPTSTR wpath;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 HANDLE handle;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 if (path == NULL) {
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	52 path = SDL_getenv("SDL_OPENGL_LIBRARY");
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	53 }
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	54 if (path == NULL) {
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	55 path = DEFAULT_OPENGL;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 wpath = WIN_UTF8ToString(path);
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	58 _this->gl_config.dll_handle = LoadLibrary(wpath);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 SDL_free(wpath);
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	60 if (!_this->gl_config.dll_handle) {
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 char message[1024];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 SDL_snprintf(message, SDL_arraysize(message), "LoadLibrary(\"%s\")",
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 path);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 WIN_SetError(message);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 }
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	67 SDL_strlcpy(_this->gl_config.driver_path, path,
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	68 SDL_arraysize(_this->gl_config.driver_path));
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	69
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	70 /* Allocate OpenGL memory */
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	71 _this->gl_data =
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	72 (struct SDL_GLDriverData *) SDL_calloc(1,
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	73 sizeof(struct
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	74 SDL_GLDriverData));
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	75 if (!_this->gl_data) {
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	76 SDL_OutOfMemory();
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	77 return -1;
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	78 }
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 /* Load function pointers */
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	81 handle = _this->gl_config.dll_handle;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 _this->gl_data->wglGetProcAddress = (void (WINAPI ) (const char *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 GetProcAddress(handle, "wglGetProcAddress");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 _this->gl_data->wglCreateContext = (HGLRC(WINAPI *) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 GetProcAddress(handle, "wglCreateContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 _this->gl_data->wglDeleteContext = (BOOL(WINAPI *) (HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 GetProcAddress(handle, "wglDeleteContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 _this->gl_data->wglMakeCurrent = (BOOL(WINAPI *) (HDC, HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 GetProcAddress(handle, "wglMakeCurrent");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 _this->gl_data->wglSwapIntervalEXT = (void (WINAPI *) (int))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 GetProcAddress(handle, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 _this->gl_data->wglGetSwapIntervalEXT = (int (WINAPI *) (void))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 GetProcAddress(handle, "wglGetSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 if (!_this->gl_data->wglGetProcAddress \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 !_this->gl_data->wglCreateContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 !_this->gl_data->wglDeleteContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 !_this->gl_data->wglMakeCurrent) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 SDL_SetError("Could not retrieve OpenGL functions");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 FreeLibrary(handle);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 void *
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 WIN_GL_GetProcAddress(_THIS, const char *proc)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 void *func;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 /* This is to pick up extensions */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 func = _this->gl_data->wglGetProcAddress(proc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 if (!func) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 /* This is probably a normal GL function */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 func = GetProcAddress(_this->gl_config.dll_handle, proc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 return func;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	121 void
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 WIN_GL_UnloadLibrary(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 {
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	124 FreeLibrary((HMODULE) _this->gl_config.dll_handle);
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	125 _this->gl_config.dll_handle = NULL;
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	126
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	127 /* Free OpenGL memory */
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	128 SDL_free(_this->gl_data);
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	129 _this->gl_data = NULL;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 WIN_GL_SetupPixelFormat(_THIS, PIXELFORMATDESCRIPTOR * pfd)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 SDL_zerop(pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 pfd->nSize = sizeof(*pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 pfd->nVersion = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 pfd->dwFlags = (PFD_DRAW_TO_WINDOW \| PFD_SUPPORT_OPENGL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 if (_this->gl_config.double_buffer) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 pfd->dwFlags \|= PFD_DOUBLEBUFFER;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 pfd->dwFlags \|= PFD_STEREO;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 pfd->iLayerType = PFD_MAIN_PLANE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 pfd->iPixelType = PFD_TYPE_RGBA;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 pfd->cRedBits = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 pfd->cGreenBits = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 pfd->cBlueBits = _this->gl_config.blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 pfd->cAlphaBits = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 if (_this->gl_config.buffer_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 pfd->cColorBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 _this->gl_config.buffer_size - _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 pfd->cColorBits = (pfd->cRedBits + pfd->cGreenBits + pfd->cBlueBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 pfd->cAccumRedBits = _this->gl_config.accum_red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 pfd->cAccumGreenBits = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 pfd->cAccumBlueBits = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 pfd->cAccumAlphaBits = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 pfd->cAccumBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 (pfd->cAccumRedBits + pfd->cAccumGreenBits + pfd->cAccumBlueBits +
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 pfd->cAccumAlphaBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 pfd->cDepthBits = _this->gl_config.depth_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 pfd->cStencilBits = _this->gl_config.stencil_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167
2150 abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	168 /* Choose the closest pixel format that meets or exceeds the target.
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	169 FIXME: Should we weight any particular attribute over any other?
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	170 */
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	171 static int
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	172 WIN_GL_ChoosePixelFormat(HDC hdc, PIXELFORMATDESCRIPTOR * target)
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	173 {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	174 PIXELFORMATDESCRIPTOR pfd;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	175 int count, index, best = 0;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	176 unsigned int dist, best_dist = ~0U;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	177
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	178 count = DescribePixelFormat(hdc, 1, sizeof(pfd), NULL);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	179
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	180 for (index = 1; index <= count; index++) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	181
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	182 if (!DescribePixelFormat(hdc, index, sizeof(pfd), &pfd)) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	183 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	184 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	185
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	186 if ((pfd.dwFlags & target->dwFlags) != target->dwFlags) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	187 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	188 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	189
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	190 if (pfd.iLayerType != target->iLayerType) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	191 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	192 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	193 if (pfd.iPixelType != target->iPixelType) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	194 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	195 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	196
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	197 dist = 0;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	198
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	199 if (pfd.cColorBits < target->cColorBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	200 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	201 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	202 dist += (pfd.cColorBits - target->cColorBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	203 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	204 if (pfd.cRedBits < target->cRedBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	205 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	206 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	207 dist += (pfd.cRedBits - target->cRedBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	208 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	209 if (pfd.cGreenBits < target->cGreenBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	210 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	211 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	212 dist += (pfd.cGreenBits - target->cGreenBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	213 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	214 if (pfd.cBlueBits < target->cBlueBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	215 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	216 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	217 dist += (pfd.cBlueBits - target->cBlueBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	218 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	219 if (pfd.cAlphaBits < target->cAlphaBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	220 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	221 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	222 dist += (pfd.cAlphaBits - target->cAlphaBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	223 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	224 if (pfd.cAccumBits < target->cAccumBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	225 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	226 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	227 dist += (pfd.cAccumBits - target->cAccumBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	228 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	229 if (pfd.cAccumRedBits < target->cAccumRedBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	230 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	231 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	232 dist += (pfd.cAccumRedBits - target->cAccumRedBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	233 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	234 if (pfd.cAccumGreenBits < target->cAccumGreenBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	235 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	236 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	237 dist += (pfd.cAccumGreenBits - target->cAccumGreenBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	238 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	239 if (pfd.cAccumBlueBits < target->cAccumBlueBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	240 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	241 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	242 dist += (pfd.cAccumBlueBits - target->cAccumBlueBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	243 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	244 if (pfd.cAccumAlphaBits < target->cAccumAlphaBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	245 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	246 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	247 dist += (pfd.cAccumAlphaBits - target->cAccumAlphaBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	248 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	249 if (pfd.cDepthBits < target->cDepthBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	250 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	251 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	252 dist += (pfd.cDepthBits - target->cDepthBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	253 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	254 if (pfd.cStencilBits < target->cStencilBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	255 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	256 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	257 dist += (pfd.cStencilBits - target->cStencilBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	258 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	259
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	260 if (dist < best_dist) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	261 best = index;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	262 best_dist = dist;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	263 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	264 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	265
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	266 return best;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	267 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	268
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 static SDL_bool
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 HasExtension(const char extension, const char extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	271 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272 const char *start;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 const char where, terminator;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 /* Extension names should not have spaces. */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 where = SDL_strchr(extension, ' ');
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 if (where \|\| *extension == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 if (!extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 /* It takes a bit of care to be fool-proof about parsing the
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 * OpenGL extensions string. Don't be fooled by sub-strings,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 * etc. */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 start = extensions;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 for (;;) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 where = SDL_strstr(start, extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 if (!where)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 terminator = where + SDL_strlen(extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 if (where == start \|\| *(where - 1) == ' ')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 if (terminator == ' ' \|\| terminator == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 return SDL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 start = terminator;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 static void
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	305 WIN_GL_InitExtensions(_THIS, HDC hdc)
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	307 const char (WINAPI wglGetExtensionsStringARB) (HDC) = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 const char *extensions;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310 wglGetExtensionsStringARB = (const char (WINAPI ) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 _this->gl_data->wglGetProcAddress("wglGetExtensionsStringARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 if (wglGetExtensionsStringARB) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 extensions = wglGetExtensionsStringARB(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 extensions = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 /* Check for WGL_ARB_pixel_format */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 _this->gl_data->WGL_ARB_pixel_format = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 if (HasExtension("WGL_ARB_pixel_format", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 _this->gl_data->wglChoosePixelFormatARB = (BOOL(WINAPI *)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 (HDC, const int *,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	323 const FLOAT *, UINT,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324 int , UINT ))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	325 WIN_GL_GetProcAddress(_this, "wglChoosePixelFormatARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326 _this->gl_data->wglGetPixelFormatAttribivARB =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 (BOOL(WINAPI ) (HDC, int, int, UINT, const int , int *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 WIN_GL_GetProcAddress(_this, "wglGetPixelFormatAttribivARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	330 if ((_this->gl_data->wglChoosePixelFormatARB != NULL) &&
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 (_this->gl_data->wglGetPixelFormatAttribivARB != NULL)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332 _this->gl_data->WGL_ARB_pixel_format = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	336 /* Check for WGL_EXT_swap_control */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 if (HasExtension("WGL_EXT_swap_control", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	338 _this->gl_data->wglSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339 WIN_GL_GetProcAddress(_this, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340 _this->gl_data->wglGetSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 WIN_GL_GetProcAddress(_this, "wglGetSwapIntervalEXT");
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	342 } else {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	343 _this->gl_data->wglSwapIntervalEXT = NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	344 _this->gl_data->wglGetSwapIntervalEXT = NULL;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345 }
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	346 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	347
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	348 static int
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	349 WIN_GL_ChoosePixelFormatARB(_THIS, int iAttribs, float fAttribs)
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	350 {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	351 HWND hwnd;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	352 HDC hdc;
2180 5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	353 PIXELFORMATDESCRIPTOR pfd;
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	354 HGLRC hglrc;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	355 int pixel_format = 0;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	356 unsigned int matching;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	358 hwnd =
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	359 CreateWindow(SDL_Appname, SDL_Appname, (WS_POPUP \| WS_DISABLED), 0, 0,
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	360 10, 10, NULL, NULL, SDL_Instance, NULL);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	361 WIN_PumpEvents(_this);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	362
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	363 hdc = GetDC(hwnd);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	364
2180 5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	365 WIN_GL_SetupPixelFormat(_this, &pfd);
5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	366
5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	367 SetPixelFormat(hdc, ChoosePixelFormat(hdc, &pfd), &pfd);
5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	368
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	369 hglrc = _this->gl_data->wglCreateContext(hdc);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370 if (hglrc) {
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	371 _this->gl_data->wglMakeCurrent(hdc, hglrc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	372
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	373 WIN_GL_InitExtensions(_this, hdc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	374
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	375 if (_this->gl_data->WGL_ARB_pixel_format) {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	376 _this->gl_data->wglChoosePixelFormatARB(hdc, iAttribs, fAttribs,
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	377 1, &pixel_format,
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	378 &matching);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	379 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	380
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381 _this->gl_data->wglMakeCurrent(NULL, NULL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 _this->gl_data->wglDeleteContext(hglrc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 ReleaseDC(hwnd, hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385 DestroyWindow(hwnd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386 WIN_PumpEvents(_this);
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	387
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	388 return pixel_format;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392 WIN_GL_SetupWindow(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 PIXELFORMATDESCRIPTOR pfd;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 int pixel_format;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397 int iAttribs[64];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398 int *iAttr;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 float fAttribs[1] = { 0 };
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401 WIN_GL_SetupPixelFormat(_this, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 /* setup WGL_ARB_pixel_format attribs */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 iAttr = &iAttribs[0];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410 *iAttr++ = WGL_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 *iAttr++ = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 *iAttr++ = WGL_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 *iAttr++ = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 *iAttr++ = WGL_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 *iAttr++ = _this->gl_config.blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 if (_this->gl_config.alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 *iAttr++ = WGL_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 *iAttr++ = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 *iAttr++ = WGL_DOUBLE_BUFFER_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 *iAttr++ = _this->gl_config.double_buffer;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425 *iAttr++ = WGL_DEPTH_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426 *iAttr++ = _this->gl_config.depth_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 if (_this->gl_config.stencil_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 *iAttr++ = WGL_STENCIL_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 *iAttr++ = _this->gl_config.stencil_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	431 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 if (_this->gl_config.accum_red_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 *iAttr++ = _this->gl_config.accum_red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	436 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	437
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 if (_this->gl_config.accum_green_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 *iAttr++ = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 if (_this->gl_config.accum_blue_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	444 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 *iAttr++ = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	446 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	447
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 if (_this->gl_config.accum_alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 *iAttr++ = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	454 *iAttr++ = WGL_STEREO_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 if (_this->gl_config.multisamplebuffers) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460 *iAttr++ = _this->gl_config.multisamplebuffers;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	462
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 if (_this->gl_config.multisamplesamples) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 *iAttr++ = WGL_SAMPLES_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 *iAttr++ = _this->gl_config.multisamplesamples;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	468 if (_this->gl_config.accelerated >= 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	469 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 *iAttr++ =
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2180 diff changeset	471 (_this->gl_config.accelerated ? WGL_GENERIC_ACCELERATION_ARB :
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 WGL_NO_ACCELERATION_ARB);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 *iAttr = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 /* Choose and set the closest available pixel format */
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	478 pixel_format = WIN_GL_ChoosePixelFormatARB(_this, iAttribs, fAttribs);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	479 if (!pixel_format) {
2150 abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	480 pixel_format = WIN_GL_ChoosePixelFormat(hdc, &pfd);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482 if (!pixel_format) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 SDL_SetError("No matching GL pixel format available");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 if (!SetPixelFormat(hdc, pixel_format, &pfd)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 WIN_SetError("SetPixelFormat()");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 return (-1);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 SDL_GLContext
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494 WIN_GL_CreateContext(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	497 HGLRC context;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498
3100 7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	499 if (_this->gl_config.major_version < 3) {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	500 context = _this->gl_data->wglCreateContext(hdc);
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	501 } else {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	502 PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	503 HGLRC temp_context = _this->gl_data->wglCreateContext(hdc);
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	504 if (!temp_context) {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	505 SDL_SetError("Could not create GL context");
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	506 return NULL;
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	507 }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	508
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	509 /* Make the context current */
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	510 if (WIN_GL_MakeCurrent(_this, window, temp_context) < 0) {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	511 WIN_GL_DeleteContext(_this, temp_context);
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	512 return NULL;
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	513 }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	514
3105 cdeee9f9b14b Fixed bug #721 Sam Lantinga <slouken@libsdl.org> parents: 3100 diff changeset	515 wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) _this->gl_data->wglGetProcAddress("wglCreateContextAttribsARB");
3100 7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	516 if (!wglCreateContextAttribsARB) {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	517 SDL_SetError("GL 3.x is not supported");
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	518 context = temp_context;
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	519 } else {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	520 int attribs[] = {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	521 WGL_CONTEXT_MAJOR_VERSION_ARB, _this->gl_config.major_version,
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	522 WGL_CONTEXT_MINOR_VERSION_ARB, _this->gl_config.minor_version,
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	523 0
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	524 };
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	525 /* Create the GL 3.x context */
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	526 context = wglCreateContextAttribsARB(hdc, 0, attribs);
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	527 /* Delete the GL 2.x context */
3105 cdeee9f9b14b Fixed bug #721 Sam Lantinga <slouken@libsdl.org> parents: 3100 diff changeset	528 _this->gl_data->wglDeleteContext(temp_context);
3100 7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	529 }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	530 }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000 Sam Lantinga <slouken@libsdl.org> parents: 3057 diff changeset	531
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	532 if (!context) {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	533 SDL_SetError("Could not create GL context");
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	534 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	535 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	536
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	537 if (WIN_GL_MakeCurrent(_this, window, context) < 0) {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	538 WIN_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	539 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	540 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	541
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	542 WIN_GL_InitExtensions(_this, hdc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	543
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	544 return context;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	545 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	546
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	547 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	548 WIN_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	549 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	550 HDC hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	551 int status;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	552
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	553 if (window) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554 hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	556 hdc = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	557 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	558 if (!_this->gl_data->wglMakeCurrent(hdc, (HGLRC) context)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	559 WIN_SetError("wglMakeCurrent()");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	560 status = -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	561 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	562 status = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	563 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	564 return status;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	565 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	566
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	567 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	568 WIN_GL_SetSwapInterval(_THIS, int interval)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	569 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	570 if (_this->gl_data->wglSwapIntervalEXT) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	571 _this->gl_data->wglSwapIntervalEXT(interval);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	572 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	573 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	574 SDL_Unsupported();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	575 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	576 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	577 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	578
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	579 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	580 WIN_GL_GetSwapInterval(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	581 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	582 if (_this->gl_data->wglGetSwapIntervalEXT) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	583 return _this->gl_data->wglGetSwapIntervalEXT();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	584 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	585 SDL_Unsupported();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	586 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	587 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	588 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	589
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	590 void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	591 WIN_GL_SwapWindow(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	592 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	593 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	594
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	595 SwapBuffers(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	596 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	597
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	598 void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	599 WIN_GL_DeleteContext(_THIS, SDL_GLContext context)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	600 {
1936 83946ee0ff1f Implemented OpenGL support on Mac OS X Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	601 _this->gl_data->wglDeleteContext((HGLRC) context);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	602 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	603
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	604 #endif /* SDL_VIDEO_OPENGL_WGL */
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	605
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	606 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/win32/SDL_win32opengl.c @ 3105:cdeee9f9b14b