sdl-ios-xcode: src/video/wincommon/SDL

annotate src/video/wincommon/SDL_wingl.c @ 655:9c42ee1b7d77

Date: Thu, 24 Apr 2003 15:13:47 -0400 From: Shawn Kirst Subject: SDL-1.2.5 patch to add ARB_multisample support Attached is a patch I have written for SDL-1.2.5 that adds ARB_multisample support. I only have the X11 and Win32 video patched. The Win32 patch also adds support for WGL_ARB_pixel_format, as it was required for getting a multisample capable pixel format. No additional GL header files are required to compile on either platform (though you need an up-to-date glx.h for X11). Requesting a multisample pixel format is made possible using SDL_GL_SetAttribute with the two new SDL_GLattr's I've added (SDL_GL_SAMPLE_BUFFERS and SDL_GL_SAMPLES). I've been using SDL in my projects for quite a while now, so I am happy to contribute back to the project. Now you can have and control FSAA in your SDL/GL apps at the application level!

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 22 Jul 2003 15:10:06 +0000
parents	a6fa62b1be09
children	864e2d2a9a55

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
297 f6ffac90895c Updated copyright information for 2002 Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	13 Library General Public License for more details.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 License along with this library; if not, write to the Free
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 #ifdef SAVE_RCSID
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 static char rcsid =
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 "@(#) $Id$";
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	28 #include <string.h>
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	29
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 /* WGL implementation of SDL OpenGL support */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31
453 a6fa62b1be09 Updated for embedded Visual C++ 4.0 Sam Lantinga <slouken@libsdl.org> parents: 450 diff changeset	32 #ifdef HAVE_OPENGL
327 13fc64213765 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	33 #include "SDL_opengl.h"
453 a6fa62b1be09 Updated for embedded Visual C++ 4.0 Sam Lantinga <slouken@libsdl.org> parents: 450 diff changeset	34 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 #include "SDL_error.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 #include "SDL_lowvideo.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #include "SDL_wingl_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 #ifdef HAVE_OPENGL
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 #define DEFAULT_GL_DRIVER_PATH "OPENGL32.DLL"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	43 /* If setting the HDC fails, we may need to recreate the window (MSDN) */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	44 static int WIN_GL_ResetWindow(_THIS)
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	45 {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	46 int status = 0;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	47 int can_reset = 1;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	48
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	49 /* If we were passed a window, then we can't create a new one */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	50 if ( SDL_windowid ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	51 can_reset = 0;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	52 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	53 #ifndef _WIN32_WCE /* FIXME WinCE needs the UNICODE version of CreateWindow() */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	54 if ( can_reset ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	55 /* Save the existing window attributes */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	56 LONG style;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	57 RECT rect = { 0, 0, 0, 0 };
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	58 style = GetWindowLong(SDL_Window, GWL_STYLE);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	59 GetWindowRect(SDL_Window, &rect);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	60 DestroyWindow(SDL_Window);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	61 SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	62 style,
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	63 rect.left, rect.top,
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	64 (rect.right-rect.left)+1,
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	65 (rect.top-rect.bottom)+1,
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	66 NULL, NULL, SDL_Instance, NULL);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	67 if ( SDL_Window ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	68 this->SetCaption(this, this->wm_title, this->wm_icon);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	69 } else {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	70 SDL_SetError("Couldn't create window");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	71 status = -1;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	72 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	73 } else
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	74 #endif /* !_WIN32_WCE */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	75 {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	76 SDL_SetError("Unable to reset window for OpenGL context");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	77 status = -1;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	78 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	79 return(status);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	80 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	82 static int Init_WGL_ARB_extensions(_THIS)
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	83 {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	84 HWND hwnd;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	85 HDC hdc;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	86 HGLRC hglrc;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	87 int pformat;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	88 const char * (WINAPI *wglGetExtensionsStringARB)(HDC) = 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	89
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	90 hwnd = CreateWindow(NULL, "PFormat", WS_POPUP \| WS_DISABLED,
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	91 0, 0, 10, 10,
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	92 NULL, NULL, SDL_Instance,NULL);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	93 hdc = GetDC(hwnd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	94
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	95 pformat = ChoosePixelFormat(hdc, &GL_pfd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	96 SetPixelFormat(hdc, pformat, &GL_pfd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	97
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	98 hglrc = this->gl_data->wglCreateContext(hdc);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	99 this->gl_data->wglMakeCurrent(hdc, hglrc);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	100
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	101 wglGetExtensionsStringARB = (const char * (WINAPI *)(HDC))
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	102 this->gl_data->wglGetProcAddress("wglGetExtensionsStringARB");
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	103
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	104 if(wglGetExtensionsStringARB && strstr(wglGetExtensionsStringARB(hdc),"WGL_ARB_pixel_format")) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	105 this->gl_data->wglChoosePixelFormatARB =
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	106 (BOOL (WINAPI )(HDC, const int , const FLOAT , UINT, int , UINT *))
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	107 this->gl_data->wglGetProcAddress("wglChoosePixelFormatARB");
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	108 this->gl_data->wglGetPixelFormatAttribivARB =
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	109 (BOOL (WINAPI )(HDC, int, int, UINT, const int , int *))
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	110 this->gl_data->wglGetProcAddress("wglGetPixelFormatAttribivARB");
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	111
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	112 if( (this->gl_data->wglChoosePixelFormatARB != NULL) &&
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	113 (this->gl_data->wglGetPixelFormatAttribivARB != NULL) )
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	114 this->gl_data->wgl_arb_pixel_format = 1;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	115 else
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	116 this->gl_data->wgl_arb_pixel_format = 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	117 } else {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	118 this->gl_data->wgl_arb_pixel_format = 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	119 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	120
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	121 this->gl_data->wglMakeCurrent(NULL, NULL);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	122 this->gl_data->wglDeleteContext(hglrc);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	123 ReleaseDC(hwnd, hdc);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	124 DestroyWindow(hwnd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	125 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	126
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 int WIN_GL_SetupWindow(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 int retval;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 #ifdef HAVE_OPENGL
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	131 int i;
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	132 unsigned int matching;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	133 int iAttribs[64];
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	134 int *iAttr;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	135 float fAttribs[1] = { 0 };
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137 /* load the gl driver from a default path */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 if ( ! this->gl_config.driver_loaded ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 /* no driver has been loaded, use default (ourselves) */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 if ( WIN_GL_LoadLibrary(this, NULL) < 0 ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 return(-1);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	145 for ( i=0; ; ++i ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	146 /* Get the window device context for our OpenGL drawing */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	147 GL_hdc = GetDC(SDL_Window);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	148 if ( GL_hdc == NULL ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	149 SDL_SetError("Unable to get DC for SDL_Window");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	150 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	151 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	153 /* Set up the pixel format descriptor with our needed format */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	154 memset(&GL_pfd, 0, sizeof(GL_pfd));
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	155 GL_pfd.nSize = sizeof(GL_pfd);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	156 GL_pfd.nVersion = 1;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	157 GL_pfd.dwFlags = (PFD_DRAW_TO_WINDOW \| PFD_SUPPORT_OPENGL);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	158 if ( this->gl_config.double_buffer ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	159 GL_pfd.dwFlags \|= PFD_DOUBLEBUFFER;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	160 }
450 8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	161 if ( this->gl_config.stereo ) {
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	162 GL_pfd.dwFlags \|= PFD_STEREO;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	163 }
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	164 GL_pfd.iPixelType = PFD_TYPE_RGBA;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	165 GL_pfd.cColorBits = this->gl_config.buffer_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	166 GL_pfd.cRedBits = this->gl_config.red_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	167 GL_pfd.cGreenBits = this->gl_config.green_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	168 GL_pfd.cBlueBits = this->gl_config.blue_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	169 GL_pfd.cAlphaBits = this->gl_config.alpha_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	170 GL_pfd.cAccumRedBits = this->gl_config.accum_red_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	171 GL_pfd.cAccumGreenBits = this->gl_config.accum_green_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	172 GL_pfd.cAccumBlueBits = this->gl_config.accum_blue_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	173 GL_pfd.cAccumAlphaBits = this->gl_config.accum_alpha_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	174 GL_pfd.cAccumBits =
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	175 (GL_pfd.cAccumRedBits + GL_pfd.cAccumGreenBits +
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	176 GL_pfd.cAccumBlueBits + GL_pfd.cAccumAlphaBits);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	177 GL_pfd.cDepthBits = this->gl_config.depth_size;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	178 GL_pfd.cStencilBits = this->gl_config.stencil_size;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	180 /* initialize WGL_ARB_pixel_format */
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	181 Init_WGL_ARB_extensions(this);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	182
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	183 /* setup WGL_ARB_pixel_format attribs */
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	184 iAttr = &iAttribs[0];
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	185
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	186 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	187 *iAttr++ = GL_TRUE;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	188 *iAttr++ = WGL_ACCELERATION_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	189 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	190 *iAttr++ = WGL_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	191 *iAttr++ = this->gl_config.red_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	192 *iAttr++ = WGL_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	193 *iAttr++ = this->gl_config.green_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	194 *iAttr++ = WGL_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	195 *iAttr++ = this->gl_config.blue_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	196
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	197 if ( this->gl_config.alpha_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	198 *iAttr++ = WGL_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	199 *iAttr++ = this->gl_config.alpha_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	200 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	201
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	202 if ( this->gl_config.double_buffer ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	203 *iAttr ++ = WGL_DOUBLE_BUFFER_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	204 *iAttr ++ = GL_TRUE;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	205 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	206
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	207 *iAttr++ = WGL_DEPTH_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	208 *iAttr++ = this->gl_config.depth_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	209
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	210 if ( this->gl_config.stencil_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	211 *iAttr++ = WGL_STENCIL_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	212 *iAttr++ = this->gl_config.stencil_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	213 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	214
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	215 if ( this->gl_config.accum_red_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	216 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	217 *iAttr++ = this->gl_config.accum_red_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	218 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	219
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	220 if ( this->gl_config.accum_green_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	221 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	222 *iAttr++ = this->gl_config.accum_green_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	223 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	224
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	225 if ( this->gl_config.accum_blue_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	226 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	227 *iAttr++ = this->gl_config.accum_blue_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	228 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	229
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	230 if ( this->gl_config.accum_alpha_size ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	231 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	232 *iAttr++ = this->gl_config.accum_alpha_size;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	233 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	234
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	235 if ( this->gl_config.stereo ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	236 *iAttr++ = WGL_STEREO_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	237 *iAttr++ = this->gl_config.stereo;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	238 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	239
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	240 if ( this->gl_config.sample_buffers ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	241 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	242 *iAttr++ = this->gl_config.sample_buffers;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	243 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	244
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	245 if ( this->gl_config.samples ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	246 *iAttr++ = WGL_SAMPLES_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	247 *iAttr++ = this->gl_config.samples;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	248 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	249
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	250 *iAttr = 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	251
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	252 /* Choose and set the closest available pixel format */
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	253 if ( !this->gl_data->wgl_arb_pixel_format \|\|
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	254 !this->gl_data->wglChoosePixelFormatARB(GL_hdc, iAttribs, fAttribs, 1, &pixel_format, &matching) \|\|
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	255 !matching ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	256 pixel_format = ChoosePixelFormat(GL_hdc, &GL_pfd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	257 this->gl_data->wgl_arb_pixel_format = 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	258 }
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	259 if ( !pixel_format ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	260 SDL_SetError("No matching GL pixel format available");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	261 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	262 }
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	263 if ( !SetPixelFormat(GL_hdc, pixel_format, &GL_pfd) ) {
373 c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	264 if ( i == 0 ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	265 /* First time through, try resetting the window */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	266 if ( WIN_GL_ResetWindow(this) < 0 ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	267 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	268 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	269 continue;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	270 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	271 SDL_SetError("Unable to set HDC pixel format");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	272 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	273 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	274 /* We either succeeded or failed by this point */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows Sam Lantinga <slouken@libsdl.org> parents: 327 diff changeset	275 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 DescribePixelFormat(GL_hdc, pixel_format, sizeof(GL_pfd), &GL_pfd);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 GL_hrc = this->gl_data->wglCreateContext(GL_hdc);
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	280 if ( GL_hrc == NULL ) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281 SDL_SetError("Unable to create GL context");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	282 return(-1);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	283 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	284 gl_active = 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 SDL_SetError("WIN driver not configured with OpenGL");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	287 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	288 if ( gl_active ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	289 retval = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 retval = -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 return(retval);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296 void WIN_GL_ShutDown(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 #ifdef HAVE_OPENGL
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299 /* Clean up OpenGL */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 if ( GL_hrc ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 this->gl_data->wglMakeCurrent(NULL, NULL);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 this->gl_data->wglDeleteContext(GL_hrc);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 GL_hrc = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 if ( GL_hdc ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 ReleaseDC(SDL_Window, GL_hdc);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 GL_hdc = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	308 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	309 gl_active = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	310
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	311 WIN_GL_UnloadLibrary(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	312 #endif /* HAVE_OPENGL */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 #ifdef HAVE_OPENGL
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	316
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317 /* Make the current context active */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 int WIN_GL_MakeCurrent(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 int retval;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 retval = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 if ( ! this->gl_data->wglMakeCurrent(GL_hdc, GL_hrc) ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 SDL_SetError("Unable to make GL context current");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325 retval = -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327 return(retval);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 /* Get attribute data from glX. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331 int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	332 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 int retval;
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	334
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	335 if ( this->gl_data->wgl_arb_pixel_format ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	336 int wgl_attrib;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	337
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	338 switch(attrib) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	339 case SDL_GL_RED_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	340 wgl_attrib = WGL_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	341 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	342 case SDL_GL_GREEN_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	343 wgl_attrib = WGL_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	344 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	345 case SDL_GL_BLUE_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	346 wgl_attrib = WGL_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	347 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	348 case SDL_GL_ALPHA_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	349 wgl_attrib = WGL_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	350 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	351 case SDL_GL_DOUBLEBUFFER:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	352 wgl_attrib = WGL_DOUBLE_BUFFER_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	353 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	354 case SDL_GL_BUFFER_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	355 wgl_attrib = WGL_COLOR_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	356 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	357 case SDL_GL_DEPTH_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	358 wgl_attrib = WGL_DEPTH_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	359 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	360 case SDL_GL_STENCIL_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	361 wgl_attrib = WGL_STENCIL_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	362 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	363 case SDL_GL_ACCUM_RED_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	364 wgl_attrib = WGL_ACCUM_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	365 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	366 case SDL_GL_ACCUM_GREEN_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	367 wgl_attrib = WGL_ACCUM_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	368 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	369 case SDL_GL_ACCUM_BLUE_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	370 wgl_attrib = WGL_ACCUM_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	371 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	372 case SDL_GL_ACCUM_ALPHA_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	373 wgl_attrib = WGL_ACCUM_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	374 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	375 case SDL_GL_STEREO:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	376 wgl_attrib = WGL_STEREO_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	377 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	378 case SDL_GL_SAMPLE_BUFFERS:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	379 wgl_attrib = WGL_SAMPLE_BUFFERS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	380 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	381 case SDL_GL_SAMPLES:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	382 wgl_attrib = WGL_SAMPLES_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	383 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	384 default:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	385 return(-1);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	386 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	387 this->gl_data->wglGetPixelFormatAttribivARB(GL_hdc, pixel_format, 0, 1, &wgl_attrib, value);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	388
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	389 return 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	390 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	392 retval = 0;
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	393 switch ( attrib ) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	394 case SDL_GL_RED_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395 *value = GL_pfd.cRedBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	396 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	397 case SDL_GL_GREEN_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	398 *value = GL_pfd.cGreenBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	399 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	400 case SDL_GL_BLUE_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	401 *value = GL_pfd.cBlueBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	402 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	403 case SDL_GL_ALPHA_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	404 *value = GL_pfd.cAlphaBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	406 case SDL_GL_DOUBLEBUFFER:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	407 if ( GL_pfd.dwFlags & PFD_DOUBLEBUFFER ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	408 *value = 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 *value = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	411 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	413 case SDL_GL_BUFFER_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414 *value = GL_pfd.cColorBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 case SDL_GL_DEPTH_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 *value = GL_pfd.cDepthBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 case SDL_GL_STENCIL_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 *value = GL_pfd.cStencilBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422 case SDL_GL_ACCUM_RED_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 *value = GL_pfd.cAccumRedBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 case SDL_GL_ACCUM_GREEN_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	426 *value = GL_pfd.cAccumGreenBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	428 case SDL_GL_ACCUM_BLUE_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	429 *value = GL_pfd.cAccumBlueBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 case SDL_GL_ACCUM_ALPHA_SIZE:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432 *value = GL_pfd.cAccumAlphaBits;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	433 break;
450 8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	434 case SDL_GL_STEREO:
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	435 if ( GL_pfd.dwFlags & PFD_STEREO ) {
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	436 *value = 1;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	437 } else {
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	438 *value = 0;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	439 }
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts Sam Lantinga <slouken@libsdl.org> parents: 373 diff changeset	440 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 retval = -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	444 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 return retval;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	447
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	448 void WIN_GL_SwapBuffers(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	449 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450 SwapBuffers(GL_hdc);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	452
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453 void WIN_GL_UnloadLibrary(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 if ( this->gl_config.driver_loaded ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 FreeLibrary((HMODULE)this->gl_config.dll_handle);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458 this->gl_data->wglGetProcAddress = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 this->gl_data->wglCreateContext = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	460 this->gl_data->wglDeleteContext = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	461 this->gl_data->wglMakeCurrent = NULL;
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	462 this->gl_data->wglChoosePixelFormatARB = NULL;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	463 this->gl_data->wglGetPixelFormatAttribivARB = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	464
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	465 this->gl_config.dll_handle = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	466 this->gl_config.driver_loaded = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	467 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470 /* Passing a NULL path means load pointers from the application */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	471 int WIN_GL_LoadLibrary(_THIS, const char* path)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	472 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473 HMODULE handle;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	474
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	475 if ( gl_active ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476 SDL_SetError("OpenGL context already created");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	478 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	479
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480 if ( path == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481 path = DEFAULT_GL_DRIVER_PATH;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483 handle = LoadLibrary(path);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484 if ( handle == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	485 SDL_SetError("Could not load OpenGL library");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	486 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	488
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 /* Unload the old driver and reset the pointers */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 WIN_GL_UnloadLibrary(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 /* Load new function pointers */
655 9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400 Sam Lantinga <slouken@libsdl.org> parents: 453 diff changeset	493 memset(this->gl_data, 0, sizeof(*this->gl_data));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494 this->gl_data->wglGetProcAddress = (void * (WINAPI )(const char ))
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495 GetProcAddress(handle, "wglGetProcAddress");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496 this->gl_data->wglCreateContext = (HGLRC (WINAPI *)(HDC))
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	497 GetProcAddress(handle, "wglCreateContext");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	498 this->gl_data->wglDeleteContext = (BOOL (WINAPI *)(HGLRC))
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499 GetProcAddress(handle, "wglDeleteContext");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	500 this->gl_data->wglMakeCurrent = (BOOL (WINAPI *)(HDC, HGLRC))
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	501 GetProcAddress(handle, "wglMakeCurrent");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	502
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	503 if ( (this->gl_data->wglGetProcAddress == NULL) \|\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504 (this->gl_data->wglCreateContext == NULL) \|\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505 (this->gl_data->wglDeleteContext == NULL) \|\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	506 (this->gl_data->wglMakeCurrent == NULL) ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 SDL_SetError("Could not retrieve OpenGL functions");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 FreeLibrary(handle);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 this->gl_config.dll_handle = handle;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 strcpy(this->gl_config.driver_path, path);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514 this->gl_config.driver_loaded = 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 return 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518 void WIN_GL_GetProcAddress(_THIS, const char proc)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	520 void *func;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	521
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	522 /* This is to pick up extensions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	523 func = this->gl_data->wglGetProcAddress(proc);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524 if ( ! func ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	525 /* This is probably a normal GL function */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	526 func = GetProcAddress(this->gl_config.dll_handle, proc);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	527 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528 return func;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 #endif /* HAVE_OPENGL */

Mercurial > sdl-ios-xcode

annotate src/video/wincommon/SDL_wingl.c @ 655:9c42ee1b7d77