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

annotate src/video/win32/SDL_win32opengl.c @ 3097:0d12e8f1de3c

Date: Thu, 05 Feb 2009 18:07:35 +0100 From: Stefan Klug Subject: [SDL] SDL 1.3 WinCE backend as promised, I've started to work on the WinCE backend of SDL 1.3 I've modified the win32 video backend and the gdi renderer, to work properly in WinCE. The results till now are great, but there is still some work to do. Attached are two patches with my changes. I would be happy if someone could review and propably commit them. The first one (configure.in.patch) should be straight forward without any side effects. The second one does the necessary changes to the win32 backend. I was really unhappy to start slicing this shiny new backend with #ifdef/#endif but I saw no other option. The most problematic issues are: - WinCe has no GetDIBits, so its practically impossible to fill a BITMAPINFO with correct values. I therefore removed the bmi member from the GDI_RenderData in SDL_gdirender.c to prevent usage of a not or not properly initialized bmi. - In SDL_win32window.c I exchanged some ASCII function by their general counterparts, (In CE only the Unicode versions are available). I don't know if this has a negative effect when running in win32 Cheers Stefan

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 23 Mar 2009 05:35:21 +0000
parents	089a77aebb7d
children	7dc982143c06

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
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 (path == NULL) {
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	41 path = SDL_getenv("SDL_OPENGL_LIBRARY");
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	42 }
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	43 if (path == NULL) {
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	44 path = DEFAULT_OPENGL;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 wpath = WIN_UTF8ToString(path);
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	47 _this->gl_config.dll_handle = LoadLibrary(wpath);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 SDL_free(wpath);
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	49 if (!_this->gl_config.dll_handle) {
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 char message[1024];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 SDL_snprintf(message, SDL_arraysize(message), "LoadLibrary(\"%s\")",
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 path);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 WIN_SetError(message);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 }
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	56 SDL_strlcpy(_this->gl_config.driver_path, path,
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	57 SDL_arraysize(_this->gl_config.driver_path));
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	58
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	59 /* Allocate OpenGL memory */
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	60 _this->gl_data =
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	61 (struct SDL_GLDriverData *) SDL_calloc(1,
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	62 sizeof(struct
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	63 SDL_GLDriverData));
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	64 if (!_this->gl_data) {
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	65 SDL_OutOfMemory();
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	66 return -1;
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	67 }
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 /* Load function pointers */
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	70 handle = _this->gl_config.dll_handle;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 _this->gl_data->wglGetProcAddress = (void (WINAPI ) (const char *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 GetProcAddress(handle, "wglGetProcAddress");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 _this->gl_data->wglCreateContext = (HGLRC(WINAPI *) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 GetProcAddress(handle, "wglCreateContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 _this->gl_data->wglDeleteContext = (BOOL(WINAPI *) (HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 GetProcAddress(handle, "wglDeleteContext");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 _this->gl_data->wglMakeCurrent = (BOOL(WINAPI *) (HDC, HGLRC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 GetProcAddress(handle, "wglMakeCurrent");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 _this->gl_data->wglSwapIntervalEXT = (void (WINAPI *) (int))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 GetProcAddress(handle, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 _this->gl_data->wglGetSwapIntervalEXT = (int (WINAPI *) (void))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 GetProcAddress(handle, "wglGetSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 if (!_this->gl_data->wglGetProcAddress \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 !_this->gl_data->wglCreateContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 !_this->gl_data->wglDeleteContext \|\|
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 !_this->gl_data->wglMakeCurrent) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 SDL_SetError("Could not retrieve OpenGL functions");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 FreeLibrary(handle);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 return -1;
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 return 0;
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 void *
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 WIN_GL_GetProcAddress(_THIS, const char *proc)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 void *func;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 /* This is to pick up extensions */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 func = _this->gl_data->wglGetProcAddress(proc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 if (!func) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 /* This is probably a normal GL function */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 func = GetProcAddress(_this->gl_config.dll_handle, proc);
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 return func;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	110 void
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 WIN_GL_UnloadLibrary(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 {
3057 089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	113 FreeLibrary((HMODULE) _this->gl_config.dll_handle);
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	114 _this->gl_config.dll_handle = NULL;
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	115
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	116 /* Free OpenGL memory */
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	117 SDL_free(_this->gl_data);
089a77aebb7d Added test program for SDL_CreateWindowFrom() Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	118 _this->gl_data = NULL;
1913 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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 static void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 WIN_GL_SetupPixelFormat(_THIS, PIXELFORMATDESCRIPTOR * pfd)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 SDL_zerop(pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 pfd->nSize = sizeof(*pfd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 pfd->nVersion = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 pfd->dwFlags = (PFD_DRAW_TO_WINDOW \| PFD_SUPPORT_OPENGL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 if (_this->gl_config.double_buffer) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 pfd->dwFlags \|= PFD_DOUBLEBUFFER;
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 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 pfd->dwFlags \|= PFD_STEREO;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 pfd->iLayerType = PFD_MAIN_PLANE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 pfd->iPixelType = PFD_TYPE_RGBA;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 pfd->cRedBits = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 pfd->cGreenBits = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 pfd->cBlueBits = _this->gl_config.blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 pfd->cAlphaBits = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 if (_this->gl_config.buffer_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 pfd->cColorBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 _this->gl_config.buffer_size - _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 pfd->cColorBits = (pfd->cRedBits + pfd->cGreenBits + pfd->cBlueBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 pfd->cAccumRedBits = _this->gl_config.accum_red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 pfd->cAccumGreenBits = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 pfd->cAccumBlueBits = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 pfd->cAccumAlphaBits = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 pfd->cAccumBits =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 (pfd->cAccumRedBits + pfd->cAccumGreenBits + pfd->cAccumBlueBits +
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 pfd->cAccumAlphaBits);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 pfd->cDepthBits = _this->gl_config.depth_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 pfd->cStencilBits = _this->gl_config.stencil_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156
2150 abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	157 /* Choose the closest pixel format that meets or exceeds the target.
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	158 FIXME: Should we weight any particular attribute over any other?
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	159 */
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	160 static int
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	161 WIN_GL_ChoosePixelFormat(HDC hdc, PIXELFORMATDESCRIPTOR * target)
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	162 {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	163 PIXELFORMATDESCRIPTOR pfd;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	164 int count, index, best = 0;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	165 unsigned int dist, best_dist = ~0U;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	166
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	167 count = DescribePixelFormat(hdc, 1, sizeof(pfd), NULL);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	168
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	169 for (index = 1; index <= count; index++) {
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 if (!DescribePixelFormat(hdc, index, sizeof(pfd), &pfd)) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	172 continue;
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
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	175 if ((pfd.dwFlags & target->dwFlags) != target->dwFlags) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	176 continue;
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
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	179 if (pfd.iLayerType != target->iLayerType) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	180 continue;
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 (pfd.iPixelType != target->iPixelType) {
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 dist = 0;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	187
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	188 if (pfd.cColorBits < target->cColorBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	189 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	190 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	191 dist += (pfd.cColorBits - target->cColorBits);
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.cRedBits < target->cRedBits) {
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 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	196 dist += (pfd.cRedBits - target->cRedBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	197 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	198 if (pfd.cGreenBits < target->cGreenBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	199 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	200 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	201 dist += (pfd.cGreenBits - target->cGreenBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	202 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	203 if (pfd.cBlueBits < target->cBlueBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	204 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	205 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	206 dist += (pfd.cBlueBits - target->cBlueBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	207 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	208 if (pfd.cAlphaBits < target->cAlphaBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	209 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	210 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	211 dist += (pfd.cAlphaBits - target->cAlphaBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	212 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	213 if (pfd.cAccumBits < target->cAccumBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	214 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	215 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	216 dist += (pfd.cAccumBits - target->cAccumBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	217 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	218 if (pfd.cAccumRedBits < target->cAccumRedBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	219 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	220 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	221 dist += (pfd.cAccumRedBits - target->cAccumRedBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	222 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	223 if (pfd.cAccumGreenBits < target->cAccumGreenBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	224 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	225 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	226 dist += (pfd.cAccumGreenBits - target->cAccumGreenBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	227 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	228 if (pfd.cAccumBlueBits < target->cAccumBlueBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	229 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	230 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	231 dist += (pfd.cAccumBlueBits - target->cAccumBlueBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	232 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	233 if (pfd.cAccumAlphaBits < target->cAccumAlphaBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	234 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	235 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	236 dist += (pfd.cAccumAlphaBits - target->cAccumAlphaBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	237 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	238 if (pfd.cDepthBits < target->cDepthBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	239 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	240 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	241 dist += (pfd.cDepthBits - target->cDepthBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	242 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	243 if (pfd.cStencilBits < target->cStencilBits) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	244 continue;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	245 } else {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	246 dist += (pfd.cStencilBits - target->cStencilBits);
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	247 }
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 (dist < best_dist) {
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	250 best = index;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	251 best_dist = dist;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	252 }
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
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	255 return best;
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	256 }
abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	257
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 static SDL_bool
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 HasExtension(const char extension, const char extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261 const char *start;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 const char where, terminator;
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 /* Extension names should not have spaces. */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 where = SDL_strchr(extension, ' ');
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 if (where \|\| *extension == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 return SDL_FALSE;
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 if (!extensions)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 return SDL_FALSE;
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 /* 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	273 * OpenGL extensions string. Don't be fooled by sub-strings,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 * etc. */
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 start = extensions;
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 for (;;) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 where = SDL_strstr(start, extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 if (!where)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 break;
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 terminator = where + SDL_strlen(extension);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 if (where == start \|\| *(where - 1) == ' ')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 if (terminator == ' ' \|\| terminator == '\0')
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 return SDL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 start = terminator;
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 return SDL_FALSE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 static void
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	294 WIN_GL_InitExtensions(_THIS, HDC hdc)
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 const char (WINAPI wglGetExtensionsStringARB) (HDC) = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 const char *extensions;
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 wglGetExtensionsStringARB = (const char (WINAPI ) (HDC))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 _this->gl_data->wglGetProcAddress("wglGetExtensionsStringARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 if (wglGetExtensionsStringARB) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 extensions = wglGetExtensionsStringARB(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 extensions = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 }
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 /* Check for WGL_ARB_pixel_format */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 _this->gl_data->WGL_ARB_pixel_format = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309 if (HasExtension("WGL_ARB_pixel_format", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310 _this->gl_data->wglChoosePixelFormatARB = (BOOL(WINAPI *)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 (HDC, const int *,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 const FLOAT *, UINT,
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 int , UINT ))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 WIN_GL_GetProcAddress(_this, "wglChoosePixelFormatARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 _this->gl_data->wglGetPixelFormatAttribivARB =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 (BOOL(WINAPI ) (HDC, int, int, UINT, const int , int *))
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317 WIN_GL_GetProcAddress(_this, "wglGetPixelFormatAttribivARB");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 if ((_this->gl_data->wglChoosePixelFormatARB != NULL) &&
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 (_this->gl_data->wglGetPixelFormatAttribivARB != NULL)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 _this->gl_data->WGL_ARB_pixel_format = 1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 }
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 /* Check for WGL_EXT_swap_control */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326 if (HasExtension("WGL_EXT_swap_control", extensions)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 _this->gl_data->wglSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 WIN_GL_GetProcAddress(_this, "wglSwapIntervalEXT");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329 _this->gl_data->wglGetSwapIntervalEXT =
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	330 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	331 } else {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	332 _this->gl_data->wglSwapIntervalEXT = NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	333 _this->gl_data->wglGetSwapIntervalEXT = NULL;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 }
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	335 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	336
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	337 static int
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	338 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	339 {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	340 HWND hwnd;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	341 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	342 PIXELFORMATDESCRIPTOR pfd;
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	343 HGLRC hglrc;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	344 int pixel_format = 0;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	345 unsigned int matching;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	347 hwnd =
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	348 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	349 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	350 WIN_PumpEvents(_this);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	351
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	352 hdc = GetDC(hwnd);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	353
2180 5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	354 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	355
5ed37b16c1a7 Yes, you need to set the pixel format before creating a context. Sam Lantinga <slouken@libsdl.org> parents: 2178 diff changeset	356 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	357
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	358 hglrc = _this->gl_data->wglCreateContext(hdc);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	359 if (hglrc) {
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	360 _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	361
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	362 WIN_GL_InitExtensions(_this, hdc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	363
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	364 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	365 _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	366 1, &pixel_format,
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	367 &matching);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	368 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	369
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370 _this->gl_data->wglMakeCurrent(NULL, NULL);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371 _this->gl_data->wglDeleteContext(hglrc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 ReleaseDC(hwnd, hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	374 DestroyWindow(hwnd);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375 WIN_PumpEvents(_this);
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	376
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	377 return pixel_format;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	378 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	379
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381 WIN_GL_SetupWindow(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 HDC hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 PIXELFORMATDESCRIPTOR pfd;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385 int pixel_format;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386 int iAttribs[64];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 int *iAttr;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 float fAttribs[1] = { 0 };
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 WIN_GL_SetupPixelFormat(_this, &pfd);
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 /* setup WGL_ARB_pixel_format attribs */
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 iAttr = &iAttribs[0];
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 *iAttr++ = WGL_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400 *iAttr++ = _this->gl_config.red_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401 *iAttr++ = WGL_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402 *iAttr++ = _this->gl_config.green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 *iAttr++ = WGL_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 *iAttr++ = _this->gl_config.blue_size;
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 if (_this->gl_config.alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 *iAttr++ = WGL_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 *iAttr++ = _this->gl_config.alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 *iAttr++ = WGL_DOUBLE_BUFFER_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 *iAttr++ = _this->gl_config.double_buffer;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 *iAttr++ = WGL_DEPTH_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 *iAttr++ = _this->gl_config.depth_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.stencil_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 *iAttr++ = WGL_STENCIL_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 *iAttr++ = _this->gl_config.stencil_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 if (_this->gl_config.accum_red_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424 *iAttr++ = _this->gl_config.accum_red_size;
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 if (_this->gl_config.accum_green_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 *iAttr++ = _this->gl_config.accum_green_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 }
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 if (_this->gl_config.accum_blue_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434 *iAttr++ = _this->gl_config.accum_blue_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 }
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 if (_this->gl_config.accum_alpha_size) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 *iAttr++ = _this->gl_config.accum_alpha_size;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 }
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 if (_this->gl_config.stereo) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 *iAttr++ = WGL_STEREO_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	444 *iAttr++ = GL_TRUE;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 }
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 if (_this->gl_config.multisamplebuffers) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 *iAttr++ = _this->gl_config.multisamplebuffers;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 }
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 if (_this->gl_config.multisamplesamples) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453 *iAttr++ = WGL_SAMPLES_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	454 *iAttr++ = _this->gl_config.multisamplesamples;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 }
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 if (_this->gl_config.accelerated >= 0) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 *iAttr++ = WGL_ACCELERATION_ARB;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 *iAttr++ =
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2180 diff changeset	460 (_this->gl_config.accelerated ? WGL_GENERIC_ACCELERATION_ARB :
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 WGL_NO_ACCELERATION_ARB);
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
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 *iAttr = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 /* 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	467 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	468 if (!pixel_format) {
2150 abbe2c1dcf0a Fixed bug #77 Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	469 pixel_format = WIN_GL_ChoosePixelFormat(hdc, &pfd);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 if (!pixel_format) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 SDL_SetError("No matching GL pixel format available");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 return -1;
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 if (!SetPixelFormat(hdc, pixel_format, &pfd)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476 WIN_SetError("SetPixelFormat()");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 return (-1);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 }
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 SDL_GLContext
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 WIN_GL_CreateContext(_THIS, SDL_Window * window)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 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	486 HGLRC context;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487
2178 114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	488 context = _this->gl_data->wglCreateContext(hdc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	489 if (!context) {
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	490 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	491 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	492 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	493
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	494 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	495 WIN_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	496 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	497 }
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	498
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	499 WIN_GL_InitExtensions(_this, hdc);
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	500
114a541cfae2 Creating a context makes it current, per the documentation. Sam Lantinga <slouken@libsdl.org> parents: 2150 diff changeset	501 return context;
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	502 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	503
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	504 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	505 WIN_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	506 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	507 HDC hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	508 int status;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	509
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	510 if (window) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	511 hdc = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	512 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	513 hdc = NULL;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	514 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	515 if (!_this->gl_data->wglMakeCurrent(hdc, (HGLRC) context)) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	516 WIN_SetError("wglMakeCurrent()");
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	517 status = -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	518 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	519 status = 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	520 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	521 return status;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	522 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	523
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	524 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	525 WIN_GL_SetSwapInterval(_THIS, int interval)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	526 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	527 if (_this->gl_data->wglSwapIntervalEXT) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	528 _this->gl_data->wglSwapIntervalEXT(interval);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	529 return 0;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	530 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	531 SDL_Unsupported();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	532 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	533 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	534 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	535
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	536 int
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	537 WIN_GL_GetSwapInterval(_THIS)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	538 {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	539 if (_this->gl_data->wglGetSwapIntervalEXT) {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	540 return _this->gl_data->wglGetSwapIntervalEXT();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	541 } else {
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	542 SDL_Unsupported();
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	543 return -1;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	544 }
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 void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	548 WIN_GL_SwapWindow(_THIS, SDL_Window * window)
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 = ((SDL_WindowData *) window->driverdata)->hdc;
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	551
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	552 SwapBuffers(hdc);
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	553 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555 void
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	556 WIN_GL_DeleteContext(_THIS, SDL_GLContext context)
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	557 {
1936 83946ee0ff1f Implemented OpenGL support on Mac OS X Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	558 _this->gl_data->wglDeleteContext((HGLRC) context);
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	559 }
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	560
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1936 diff changeset	561 #endif /* SDL_VIDEO_OPENGL_WGL */
1913 83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	562
83420da906a5 Implemented Windows OpenGL support Sam Lantinga <slouken@libsdl.org> parents: diff changeset	563 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/win32/SDL_win32opengl.c @ 3097:0d12e8f1de3c