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

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 17 Jul 2006 06:47:33 +0000
parents
children	307355678142

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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #if SDL_VIDEO_OPENGL
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 #define DEFAULT_GL_DRIVER_PATH "OPENGL32.DLL"
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 WIN_GL_LoadLibrary(_THIS, const char *path)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 LPTSTR wpath;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 HANDLE handle;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 if (_this->gl_config.driver_loaded) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 if (path) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 SDL_SetError("OpenGL library already loaded");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 ++_this->gl_config.driver_loaded;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 return 0;
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 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 if (path == NULL) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 path = DEFAULT_GL_DRIVER_PATH;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 wpath = WIN_UTF8ToString(path);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 handle = LoadLibrary(wpath);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 SDL_free(wpath);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 if (!handle) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 char message[1024];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 SDL_snprintf(message, SDL_arraysize(message), "LoadLibrary(\"%s\")",
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 path);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 WIN_SetError(message);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 /* Load function pointers */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 _this->gl_data->wglGetProcAddress = (void (WINAPI ) (const char *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 GetProcAddress(handle, "wglGetProcAddress");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 _this->gl_data->wglCreateContext = (HGLRC(WINAPI *) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 GetProcAddress(handle, "wglCreateContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 _this->gl_data->wglDeleteContext = (BOOL(WINAPI *) (HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 GetProcAddress(handle, "wglDeleteContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 _this->gl_data->wglMakeCurrent = (BOOL(WINAPI *) (HDC, HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 GetProcAddress(handle, "wglMakeCurrent");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 _this->gl_data->wglSwapIntervalEXT = (void (WINAPI *) (int))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 GetProcAddress(handle, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 _this->gl_data->wglGetSwapIntervalEXT = (int (WINAPI *) (void))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 GetProcAddress(handle, "wglGetSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 if (!_this->gl_data->wglGetProcAddress \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 !_this->gl_data->wglCreateContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 !_this->gl_data->wglDeleteContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 !_this->gl_data->wglMakeCurrent) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 SDL_SetError("Could not retrieve OpenGL functions");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 FreeLibrary(handle);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 _this->gl_config.dll_handle = handle;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 SDL_strlcpy(_this->gl_config.driver_path, path,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 SDL_arraysize(_this->gl_config.driver_path));
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 _this->gl_config.driver_loaded = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 void *
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 WIN_GL_GetProcAddress(_THIS, const char *proc)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 void *func;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 /* This is to pick up extensions */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 func = _this->gl_data->wglGetProcAddress(proc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 if (!func) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 /* This is probably a normal GL function */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 func = GetProcAddress(_this->gl_config.dll_handle, proc);
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 func;
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 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 WIN_GL_UnloadLibrary(_THIS)
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 if (_this->gl_config.driver_loaded > 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 if (--_this->gl_config.driver_loaded > 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 return;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 FreeLibrary((HMODULE) _this->gl_config.dll_handle);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 _this->gl_config.dll_handle = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 }
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 WIN_GL_SetupPixelFormat(_THIS, PIXELFORMATDESCRIPTOR * pfd)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 SDL_zerop(pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 pfd->nSize = sizeof(*pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 pfd->nVersion = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 pfd->dwFlags = (PFD_DRAW_TO_WINDOW \| PFD_SUPPORT_OPENGL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 if (_this->gl_config.double_buffer) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 pfd->dwFlags \|= PFD_DOUBLEBUFFER;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 pfd->dwFlags \|= PFD_STEREO;
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 pfd->iLayerType = PFD_MAIN_PLANE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 pfd->iPixelType = PFD_TYPE_RGBA;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 pfd->cRedBits = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 pfd->cGreenBits = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 pfd->cBlueBits = _this->gl_config.blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 pfd->cAlphaBits = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 if (_this->gl_config.buffer_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 pfd->cColorBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 _this->gl_config.buffer_size - _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 pfd->cColorBits = (pfd->cRedBits + pfd->cGreenBits + pfd->cBlueBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 pfd->cAccumRedBits = _this->gl_config.accum_red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 pfd->cAccumGreenBits = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 pfd->cAccumBlueBits = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 pfd->cAccumAlphaBits = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 pfd->cAccumBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 (pfd->cAccumRedBits + pfd->cAccumGreenBits + pfd->cAccumBlueBits +
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 pfd->cAccumAlphaBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 pfd->cDepthBits = _this->gl_config.depth_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 pfd->cStencilBits = _this->gl_config.stencil_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 static SDL_bool
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156 HasExtension(const char extension, const char extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 const char *start;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 const char where, terminator;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 /* Extension names should not have spaces. */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 where = SDL_strchr(extension, ' ');
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 if (where \|\| *extension == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 if (!extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 /* 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	170 * OpenGL extensions string. Don't be fooled by sub-strings,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 * etc. */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173 start = extensions;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175 for (;;) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	176 where = SDL_strstr(start, extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177 if (!where)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180 terminator = where + SDL_strlen(extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181 if (where == start \|\| *(where - 1) == ' ')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 if (terminator == ' ' \|\| terminator == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 return SDL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 start = terminator;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191 WIN_GL_InitExtensions(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	193 HWND hwnd;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194 HDC hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 PIXELFORMATDESCRIPTOR pfd;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196 int pixel_format;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 HGLRC hglrc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 const char (WINAPI wglGetExtensionsStringARB) (HDC) = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 const GLubyte (WINAPI glGetStringFunc) (GLenum);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 const char *extensions;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 hwnd =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 CreateWindow(SDL_Appname, SDL_Appname, (WS_POPUP \| WS_DISABLED), 0, 0,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 10, 10, NULL, NULL, SDL_Instance, NULL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205 WIN_PumpEvents(_this);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 hdc = GetDC(hwnd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 WIN_GL_SetupPixelFormat(_this, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210 pixel_format = ChoosePixelFormat(hdc, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 SetPixelFormat(hdc, pixel_format, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	212
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	213 hglrc = _this->gl_data->wglCreateContext(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214 if (hglrc) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	215 _this->gl_data->wglMakeCurrent(hdc, hglrc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	216 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	217
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	218 wglGetExtensionsStringARB = (const char (WINAPI ) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	219 _this->gl_data->wglGetProcAddress("wglGetExtensionsStringARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	220 if (wglGetExtensionsStringARB) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	221 extensions = wglGetExtensionsStringARB(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	222 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	223 extensions = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	224 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	225
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	226 /* Check for WGL_ARB_pixel_format */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227 _this->gl_data->WGL_ARB_pixel_format = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	228 if (HasExtension("WGL_ARB_pixel_format", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	229 _this->gl_data->wglChoosePixelFormatARB = (BOOL(WINAPI *)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	230 (HDC, const int *,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 const FLOAT *, UINT,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 int , UINT ))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233 WIN_GL_GetProcAddress(_this, "wglChoosePixelFormatARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 _this->gl_data->wglGetPixelFormatAttribivARB =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235 (BOOL(WINAPI ) (HDC, int, int, UINT, const int , int *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 WIN_GL_GetProcAddress(_this, "wglGetPixelFormatAttribivARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	237
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238 if ((_this->gl_data->wglChoosePixelFormatARB != NULL) &&
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	239 (_this->gl_data->wglGetPixelFormatAttribivARB != NULL)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	240 _this->gl_data->WGL_ARB_pixel_format = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	242 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	243
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	244 glGetStringFunc = WIN_GL_GetProcAddress(_this, "glGetString");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 if (glGetStringFunc) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	246 extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 /* Uh oh, something is seriously wrong here... */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249 extensions = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 /* Check for WGL_EXT_swap_control */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 if (HasExtension("WGL_EXT_swap_control", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254 _this->gl_data->wglSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 WIN_GL_GetProcAddress(_this, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256 _this->gl_data->wglGetSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	257 WIN_GL_GetProcAddress(_this, "wglGetSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 if (hglrc) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261 _this->gl_data->wglMakeCurrent(NULL, NULL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 _this->gl_data->wglDeleteContext(hglrc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 ReleaseDC(hwnd, hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 DestroyWindow(hwnd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 WIN_PumpEvents(_this);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 WIN_GL_Shutdown(_THIS)
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 if (!_this->gl_data \|\| (--_this->gl_data->initialized > 0)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 return;
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 WIN_GL_UnloadLibrary(_this);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278 SDL_free(_this->gl_data);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 _this->gl_data = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282 static int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 WIN_GL_Initialize(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 if (_this->gl_data) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 ++_this->gl_data->initialized;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 return 0;
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 _this->gl_data =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 (struct SDL_GLDriverData *) SDL_calloc(1,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 sizeof(struct
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 SDL_GLDriverData));
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 if (!_this->gl_data) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 SDL_OutOfMemory();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 _this->gl_data->initialized = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 if (WIN_GL_LoadLibrary(_this, NULL) < 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 return -1;
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 /* Initialize extensions */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 WIN_GL_InitExtensions(_this);
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 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 }
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 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 WIN_GL_SetupWindow(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 PIXELFORMATDESCRIPTOR pfd;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 int pixel_format;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 unsigned int matching;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317 int iAttribs[64];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 int *iAttr;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 float fAttribs[1] = { 0 };
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 if (WIN_GL_Initialize(_this) < 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	323 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	325 WIN_GL_SetupPixelFormat(_this, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 /* setup WGL_ARB_pixel_format attribs */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 iAttr = &iAttribs[0];
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 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 *iAttr++ = WGL_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335 *iAttr++ = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	336 *iAttr++ = WGL_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 *iAttr++ = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	338 *iAttr++ = WGL_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339 *iAttr++ = _this->gl_config.blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 if (_this->gl_config.alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	342 *iAttr++ = WGL_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343 *iAttr++ = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	344 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346 *iAttr++ = WGL_DOUBLE_BUFFER_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 *iAttr++ = _this->gl_config.double_buffer;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	348
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	349 *iAttr++ = WGL_DEPTH_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	350 *iAttr++ = _this->gl_config.depth_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	351
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352 if (_this->gl_config.stencil_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 *iAttr++ = WGL_STENCIL_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	354 *iAttr++ = _this->gl_config.stencil_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 if (_this->gl_config.accum_red_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	358 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	359 *iAttr++ = _this->gl_config.accum_red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	361
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	362 if (_this->gl_config.accum_green_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	363 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	364 *iAttr++ = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	367 if (_this->gl_config.accum_blue_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	368 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	369 *iAttr++ = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 if (_this->gl_config.accum_alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	374 *iAttr++ = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	376
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	377 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	378 *iAttr++ = WGL_STEREO_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	379 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 if (_this->gl_config.multisamplebuffers) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 *iAttr++ = _this->gl_config.multisamplebuffers;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 if (_this->gl_config.multisamplesamples) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 *iAttr++ = WGL_SAMPLES_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 *iAttr++ = _this->gl_config.multisamplesamples;
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392 if (_this->gl_config.accelerated >= 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394 *iAttr++ =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 (_this->gl_config.
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 accelerated ? WGL_GENERIC_ACCELERATION_ARB :
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397 WGL_NO_ACCELERATION_ARB);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400 *iAttr = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402 /* Choose and set the closest available pixel format */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 if (!_this->gl_data->WGL_ARB_pixel_format
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 \|\| !_this->gl_data->wglChoosePixelFormatARB(hdc, iAttribs, fAttribs,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405 1, &pixel_format,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406 &matching) \|\| !matching) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 pixel_format = ChoosePixelFormat(hdc, &pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 if (!pixel_format) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410 SDL_SetError("No matching GL pixel format available");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 if (!SetPixelFormat(hdc, pixel_format, &pfd)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 WIN_SetError("SetPixelFormat()");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 return (-1);
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 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 WIN_GL_CleanupWindow(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 WIN_GL_Shutdown(_this);
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 WIN_GL_GetWindowAttribute(_THIS, SDL_Window * window, SDL_GLattr attrib,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 int *value)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	431 int pixel_format;
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 pixel_format = GetPixelFormat(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 if (_this->gl_data->WGL_ARB_pixel_format) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	436 int wgl_attrib;
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 switch (attrib) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 case SDL_GL_RED_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 wgl_attrib = WGL_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442 case SDL_GL_GREEN_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 wgl_attrib = WGL_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	444 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 case SDL_GL_BLUE_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	446 wgl_attrib = WGL_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	447 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 case SDL_GL_ALPHA_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 wgl_attrib = WGL_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 case SDL_GL_DOUBLEBUFFER:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452 wgl_attrib = WGL_DOUBLE_BUFFER_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	454 case SDL_GL_BUFFER_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 wgl_attrib = WGL_COLOR_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457 case SDL_GL_DEPTH_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 wgl_attrib = WGL_DEPTH_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460 case SDL_GL_STENCIL_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 wgl_attrib = WGL_STENCIL_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	462 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 case SDL_GL_ACCUM_RED_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 wgl_attrib = WGL_ACCUM_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 case SDL_GL_ACCUM_GREEN_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467 wgl_attrib = WGL_ACCUM_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	468 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	469 case SDL_GL_ACCUM_BLUE_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 wgl_attrib = WGL_ACCUM_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 case SDL_GL_ACCUM_ALPHA_SIZE:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 wgl_attrib = WGL_ACCUM_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 case SDL_GL_STEREO:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476 wgl_attrib = WGL_STEREO_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 case SDL_GL_MULTISAMPLEBUFFERS:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 wgl_attrib = WGL_SAMPLE_BUFFERS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481 case SDL_GL_MULTISAMPLESAMPLES:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482 wgl_attrib = WGL_SAMPLES_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484 case SDL_GL_ACCELERATED_VISUAL:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 wgl_attrib = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 _this->gl_data->wglGetPixelFormatAttribivARB(hdc, pixel_format, 0,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 1, &wgl_attrib,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 value);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 if (*value == WGL_NO_ACCELERATION_ARB) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 *value = SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492 *value = SDL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 break;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 default:
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 return (-1);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	499 _this->gl_data->wglGetPixelFormatAttribivARB(hdc, pixel_format, 0, 1,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	500 &wgl_attrib, value);

1913

83420da906a5 Implemented Windows OpenGL support