src/wgl/wglutil.h

   1 /*
   2  * Author: kenc
   3  *
   4  * Created: March 1, 2013
   5  * Copyright    (c) 2013, Attachmate Corporation All Rights Reserved
   6  */
   7 #ifndef wglExt_h
   8 #define wglExt_h
   9
  10 /*
  11  * Derrived from... at http://developer.download.nvidia.com/opengl/includes/wglext.h
  12  */
  13
  14 #define WGL_WGLEXT_PROTOTYPES   1
  15
  16 /* WGL_extensions_string extension */
  17 typedef const char * (WINAPI *PFNWGLGETEXTENSIONSSTRINGPROC)(HDC);
  18
  19 /* WGL_pixel_format extension */
  20 typedef BOOL (WINAPI *PFNWGLCHOOSEPIXELFORMATARBPROC)(HDC, const int *, const FLOAT *,  UINT, int *, UINT *);
  21
  22 /*
  23  * Accepted in the <piAttributes> parameter array of
  24  * wglGetPixelFormatAttribivARB, and wglGetPixelFormatAttribfvARB, and
  25  * as a type in the <piAttribIList> and <pfAttribFList> parameter
  26  * arrays of wglChoosePixelFormatARB:
  27  */
  28
  29 #ifndef WGL_ARB_make_current_read
  30 #define ERROR_INVALID_PIXEL_TYPE_ARB    0x2043
  31 #define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
  32 #endif
  33
  34 #define WGL_NUMBER_PIXEL_FORMATS        0x2000
  35 #define WGL_DRAW_TO_WINDOW                      0x2001
  36 #define WGL_DRAW_TO_BITMAP                      0x2002
  37 #define WGL_ACCELERATION                        0x2003
  38 #define WGL_NEED_PALETTE                        0x2004
  39 #define WGL_NEED_SYSTEM_PALETTE         0x2005
  40 #define WGL_SWAP_LAYER_BUFFERS          0x2006
  41 #define WGL_SWAP_METHOD                         0x2007
  42 #define WGL_NUMBER_OVERLAYS                     0x2008
  43 #define WGL_NUMBER_UNDERLAYS            0x2009
  44 #define WGL_TRANSPARENT                         0x200A
  45 #define WGL_TRANSPARENT_RED_VALUE       0x2037
  46 #define WGL_TRANSPARENT_GREEN_VALUE     0x2038
  47 #define WGL_TRANSPARENT_BLUE_VALUE      0x2039
  48 #define WGL_TRANSPARENT_ALPHA_VALUE     0x203A
  49 #define WGL_TRANSPARENT_INDEX_VALUE     0x203B
  50 #define WGL_SHARE_DEPTH                         0x200C
  51 #define WGL_SHARE_STENCIL                       0x200D
  52 #define WGL_SHARE_ACCUM                         0x200E
  53 #define WGL_SUPPORT_GDI                         0x200F
  54 #define WGL_SUPPORT_OPENGL                      0x2010
  55 #define WGL_DOUBLE_BUFFER                       0x2011
  56 #define WGL_STEREO                                      0x2012
  57 #define WGL_PIXEL_TYPE                          0x2013
  58 #define WGL_COLOR_BITS                          0x2014
  59 #define WGL_RED_BITS                            0x2015
  60 #define WGL_RED_SHIFT                           0x2016
  61 #define WGL_GREEN_BITS                          0x2017
  62 #define WGL_GREEN_SHIFT                         0x2018
  63 #define WGL_BLUE_BITS                           0x2019
  64 #define WGL_BLUE_SHIFT                          0x201A
  65 #define WGL_ALPHA_BITS                          0x201B
  66 #define WGL_ALPHA_SHIFT                         0x201C
  67 #define WGL_ACCUM_BITS                          0x201D
  68 #define WGL_ACCUM_RED_BITS                      0x201E
  69 #define WGL_ACCUM_GREEN_BITS            0x201F
  70 #define WGL_ACCUM_BLUE_BITS                     0x2020
  71 #define WGL_ACCUM_ALPHA_BITS            0x2021
  72 #define WGL_DEPTH_BITS                          0x2022
  73 #define WGL_STENCIL_BITS                        0x2023
  74 #define WGL_AUX_BUFFERS                         0x2024
  75 #define WGL_SAMPLE_BUFFERS                      0x2041
  76 #define WGL_SAMPLES                                     0x2042
  77 #define PFD_DRAW_TO_PBUFFER                     0x4000
  78
  79 /*
  80  * Accepted as a value in the <piAttribIList> and <pfAttribFList>
  81  * parameter arrays of wglChoosePixelFormatARB, and returned in the
  82  * <piValues> parameter array of wglGetPixelFormatAttribivARB, and the
  83  * <pfValues> parameter array of wglGetPixelFormatAttribfvARB:
  84  */
  85 #define WGL_NO_ACCELERATION                     0x2025
  86 #define WGL_GENERIC_ACCELERATION        0x2026
  87 #define WGL_FULL_ACCELERATION           0x2027
  88
  89 #define WGL_SWAP_EXCHANGE                       0x2028
  90 #define WGL_SWAP_COPY                           0x2029
  91 #define WGL_SWAP_UNDEFINED                      0x202A
  92
  93 #define WGL_TYPE_RGBA                           0x202B
  94 #define WGL_TYPE_COLORINDEX                     0x202C
  95 #define PFD_TYPE_FLOAT_RGBA                     2
  96
  97 #ifndef WGL_EXT_make_current_read
  98 #define ERROR_INVALID_PIXEL_TYPE_EXT    0x2043
  99 #endif
 100
 101 #ifndef WGL_ARB_make_current_read
 102 #define WGL_ARB_make_current_read 1
 103 #ifdef WGL_WGLEXT_PROTOTYPES
 104 extern BOOL WINAPI wglMakeContextCurrentARB(HDC, HDC, HGLRC);
 105 extern HDC WINAPI wglGetCurrentReadDCARB(void);
 106 #endif /* WGL_WGLEXT_PROTOTYPES */
 107 typedef BOOL (WINAPI *PFNWGLMAKECONTEXTCURRENTARBPROC)(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
 108 typedef HDC (WINAPI *PFNWGLGETCURRENTREADDCARBPROC)(void);
 109 #endif
 110
 111 /*
 112  * Inits some function pointers and return number of formats.
 113  * Returns 0 on failure.
 114  */
 115 extern HWND getWindow(HINSTANCE hInst, int x, int y, int w, int h, int format);
 116 extern BOOL wglExtMakeContextCurrent(HWND did, HWND rid, HGLRC gid);
 117 extern BOOL wglExtSwapBuffers(HWND);
 118 extern int wglExtChoosePixelFormat(const int *);
 119 extern BOOL wglExtInit(HINSTANCE, WNDPROC);
 120 extern void wglExtDispose(HINSTANCE);
 121 LRESULT storeDC(HWND hWnd);
 122 HDC fetchDC(HWND hWnd);
 123 #endif