| 1 | /* $Id: opengl.cpp,v 1.3 1999-06-10 17:09:04 phaller Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * GDI32 OpenGl stubs
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| 5 | *
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| 6 | * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | * Project Odin Software License can be found in LICENSE.TXT
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| 9 | *
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| 10 | */
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| 11 | #include <os2win.h>
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| 12 | #include <stdarg.h>
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| 13 | #include <string.h>
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| 14 | #include "misc.h"
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| 15 | #include "unicode.h"
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| 16 |
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| 17 | typedef int (* WIN32API CHOOSEPIXELFMT) (HDC, CONST PIXELFORMATDESCRIPTOR *);
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| 18 | typedef BOOL (* WIN32API SETPIXELFMT) (HDC, int, CONST PIXELFORMATDESCRIPTOR *);
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| 19 | typedef BOOL (* WIN32API SWAPBUFFERS) (HDC hdc);
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| 20 |
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| 21 | CHOOSEPIXELFMT glChoosePixelFormat = NULL;
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| 22 | SETPIXELFMT glSetPixelFormat = NULL;
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| 23 | SWAPBUFFERS glSwapBuffers = NULL;
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| 24 |
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| 25 | HINSTANCE hOpenGL = NULL;
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| 26 |
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| 27 | //******************************************************************************
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| 28 | //******************************************************************************
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| 29 | int WIN32API ChoosePixelFormat(HDC hdc, CONST PIXELFORMATDESCRIPTOR *pformat)
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| 30 | {
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| 31 | int rc;
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| 32 |
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| 33 | return(1);
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| 34 | dprintf(("OS2ChoosePixelFormat\n"));
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| 35 | if(hOpenGL == NULL) {
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| 36 | hOpenGL = O32_LoadLibrary("OPENGL32.DLL");
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| 37 | if(hOpenGL == NULL)
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| 38 | return(0);
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| 39 | }
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| 40 | if(glChoosePixelFormat == NULL) {
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| 41 | glChoosePixelFormat = (CHOOSEPIXELFMT)O32_GetProcAddress(hOpenGL, "OS2wglChoosePixelFormat");
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| 42 | if(glChoosePixelFormat == NULL)
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| 43 | return(0);
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| 44 | }
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| 45 | rc = glChoosePixelFormat(hdc, pformat);
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| 46 | dprintf(("wglChoosePixelFormat returned %d\n", rc));
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| 47 | return(rc);
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| 48 | }
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| 49 | //******************************************************************************
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| 50 | //******************************************************************************
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| 51 | BOOL WIN32API SetPixelFormat(HDC hdc, int whatever, CONST PIXELFORMATDESCRIPTOR * pformat)
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| 52 | {
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| 53 | BOOL rc;
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| 54 |
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| 55 | dprintf(("OS2SetPixelFormat\n"));
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| 56 | if(hOpenGL == NULL) {
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| 57 | hOpenGL = O32_LoadLibrary("OPENGL32.DLL");
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| 58 | if(hOpenGL == NULL)
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| 59 | return(FALSE);
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| 60 | }
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| 61 | if(glSetPixelFormat == NULL) {
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| 62 | glSetPixelFormat = (SETPIXELFMT)O32_GetProcAddress(hOpenGL, "OS2wglSetPixelFormat");
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| 63 | if(glSetPixelFormat == NULL)
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| 64 | return(FALSE);
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| 65 | }
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| 66 | rc = glSetPixelFormat(hdc, whatever, pformat);
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| 67 | dprintf(("wglSetPixelFormat returned %d\n", rc));
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| 68 | return(rc);
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| 69 | }
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| 70 | //******************************************************************************
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| 71 | //******************************************************************************
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| 72 | BOOL WIN32API SwapBuffers(HDC hdc)
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| 73 | {
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| 74 | BOOL rc;
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| 75 |
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| 76 | dprintf(("OS2SwapBuffers\n"));
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| 77 | if(hOpenGL == NULL) {
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| 78 | hOpenGL = O32_LoadLibrary("OPENGL32.DLL");
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| 79 | if(hOpenGL == NULL)
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| 80 | return(FALSE);
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| 81 | }
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| 82 | if(glSwapBuffers == NULL) {
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| 83 | glSwapBuffers = (SWAPBUFFERS)O32_GetProcAddress(hOpenGL, "OS2wglSwapBuffers");
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| 84 | if(glSwapBuffers == NULL)
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| 85 | return(FALSE);
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| 86 | }
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| 87 | rc = glSwapBuffers(hdc);
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| 88 | dprintf(("wglSwapBuffers returned %d\n", rc));
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| 89 | return(rc);
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| 90 | }
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| 91 | //******************************************************************************
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| 92 | //******************************************************************************
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