git.cworth.org Git - apitrace/blob - specs/wglapi.py

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   3 # Copyright 2008-2010 VMware, Inc.
   4 # All Rights Reserved.
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  11 # furnished to do so, subject to the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included in
  14 # all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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  22 # THE SOFTWARE.
  23 #
  24 ##########################################################################/
  25
  26
  27 """WGL API description"""
  28
  29
  30 from glapi import *
  31 from winapi import *
  32 from wglenum import *
  33
  34
  35 wglapi = Module("WGL")
  36
  37
  38 HGLRC = Alias("HGLRC", HANDLE)
  39 PROC = Opaque("PROC")
  40
  41 PFD = Flags(DWORD, [
  42     "PFD_DOUBLEBUFFER",
  43     "PFD_STEREO",
  44     "PFD_DRAW_TO_WINDOW",
  45     "PFD_DRAW_TO_BITMAP",
  46     "PFD_SUPPORT_GDI",
  47     "PFD_SUPPORT_OPENGL",
  48     "PFD_GENERIC_FORMAT",
  49     "PFD_NEED_PALETTE",
  50     "PFD_NEED_SYSTEM_PALETTE",
  51     "PFD_SWAP_EXCHANGE",
  52     "PFD_SWAP_COPY",
  53     "PFD_SWAP_LAYER_BUFFERS",
  54     "PFD_GENERIC_ACCELERATED",
  55     "PFD_SUPPORT_DIRECTDRAW",
  56     "PFD_SUPPORT_COMPOSITION",
  57     "PFD_DEPTH_DONTCARE",
  58     "PFD_DOUBLEBUFFER_DONTCARE",
  59     "PFD_STEREO_DONTCARE",
  60 ])
  61
  62 PIXELFORMATDESCRIPTOR = Struct("PIXELFORMATDESCRIPTOR", [
  63     (WORD, "nSize"),
  64     (WORD, "nVersion"),
  65     (PFD, "dwFlags"),
  66     (BYTE, "iPixelType"),
  67     (BYTE, "cColorBits"),
  68     (BYTE, "cRedBits"),
  69     (BYTE, "cRedShift"),
  70     (BYTE, "cGreenBits"),
  71     (BYTE, "cGreenShift"),
  72     (BYTE, "cBlueBits"),
  73     (BYTE, "cBlueShift"),
  74     (BYTE, "cAlphaBits"),
  75     (BYTE, "cAlphaShift"),
  76     (BYTE, "cAccumBits"),
  77     (BYTE, "cAccumRedBits"),
  78     (BYTE, "cAccumGreenBits"),
  79     (BYTE, "cAccumBlueBits"),
  80     (BYTE, "cAccumAlphaBits"),
  81     (BYTE, "cDepthBits"),
  82     (BYTE, "cStencilBits"),
  83     (BYTE, "cAuxBuffers"),
  84     (BYTE, "iLayerType"),
  85     (BYTE, "bReserved"),
  86     (DWORD, "dwLayerMask"),
  87     (DWORD, "dwVisibleMask"),
  88     (DWORD, "dwDamageMask"),
  89 ])
  90
  91 POINTFLOAT = Struct("POINTFLOAT", [
  92     (FLOAT, "x"),
  93     (FLOAT, "y"),
  94 ])
  95
  96 GLYPHMETRICSFLOAT = Struct("GLYPHMETRICSFLOAT", [
  97     (FLOAT, "gmfBlackBoxX"),
  98     (FLOAT, "gmfBlackBoxY"),
  99     (POINTFLOAT, "gmfptGlyphOrigin"),
 100     (FLOAT, "gmfCellIncX"),
 101     (FLOAT, "gmfCellIncY"),
 102 ])
 103 LPGLYPHMETRICSFLOAT = Pointer(GLYPHMETRICSFLOAT)
 104
 105 COLORREF = Alias("COLORREF", DWORD)
 106
 107
 108 LAYERPLANEDESCRIPTOR = Struct("LAYERPLANEDESCRIPTOR", [
 109     (WORD, "nSize"),
 110     (WORD, "nVersion"),
 111     (DWORD, "dwFlags"),
 112     (BYTE, "iPixelType"),
 113     (BYTE, "cColorBits"),
 114     (BYTE, "cRedBits"),
 115     (BYTE, "cRedShift"),
 116     (BYTE, "cGreenBits"),
 117     (BYTE, "cGreenShift"),
 118     (BYTE, "cBlueBits"),
 119     (BYTE, "cBlueShift"),
 120     (BYTE, "cAlphaBits"),
 121     (BYTE, "cAlphaShift"),
 122     (BYTE, "cAccumBits"),
 123     (BYTE, "cAccumRedBits"),
 124     (BYTE, "cAccumGreenBits"),
 125     (BYTE, "cAccumBlueBits"),
 126     (BYTE, "cAccumAlphaBits"),
 127     (BYTE, "cDepthBits"),
 128     (BYTE, "cStencilBits"),
 129     (BYTE, "cAuxBuffers"),
 130     (BYTE, "iLayerPlane"),
 131     (BYTE, "bReserved"),
 132     (COLORREF, "crTransparent"),
 133 ])
 134 LPLAYERPLANEDESCRIPTOR = Pointer(LAYERPLANEDESCRIPTOR)
 135
 136 WGLSWAP = Struct("WGLSWAP", [
 137     (HDC, "hdc"),
 138     (UINT, "uiFlags"),
 139 ])
 140
 141 WGLContextAttribs = AttribArray(WGLenum, [
 142     ('WGL_CONTEXT_MAJOR_VERSION_ARB', Int),
 143     ('WGL_CONTEXT_MINOR_VERSION_ARB', Int),
 144     ('WGL_CONTEXT_LAYER_PLANE_ARB', Int),
 145     ('WGL_CONTEXT_FLAGS_ARB', Flags(Int, ["WGL_CONTEXT_DEBUG_BIT_ARB", "WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB"])),
 146     ('WGL_CONTEXT_PROFILE_MASK_ARB', Flags(Int, ["WGL_CONTEXT_CORE_PROFILE_BIT_ARB", "WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB"]))
 147 ])
 148
 149 WGLPixelFormatARBAttribsList = [
 150     ('WGL_DRAW_TO_WINDOW_ARB', BOOL),
 151     ('WGL_DRAW_TO_BITMAP_ARB', BOOL),
 152     ('WGL_ACCELERATION_ARB', FakeEnum(Int, ['WGL_NO_ACCELERATION_ARB', 'WGL_GENERIC_ACCELERATION_ARB', 'WGL_FULL_ACCELERATION_ARB'])),
 153     ('WGL_NEED_PALETTE_ARB', BOOL),
 154     ('WGL_NEED_SYSTEM_PALETTE_ARB', BOOL),
 155     ('WGL_SWAP_LAYER_BUFFERS_ARB', BOOL),
 156     ('WGL_SWAP_METHOD_ARB', FakeEnum(Int, ['WGL_SWAP_EXCHANGE_ARB', 'WGL_SWAP_COPY_ARB', 'WGL_SWAP_UNDEFINED_ARB'])),
 157     ('WGL_NUMBER_OVERLAYS_ARB', Int),
 158     ('WGL_NUMBER_UNDERLAYS_ARB', Int),
 159     ('WGL_SHARE_DEPTH_ARB', BOOL),
 160     ('WGL_SHARE_STENCIL_ARB', BOOL),
 161     ('WGL_SHARE_ACCUM_ARB', BOOL),
 162     ('WGL_SUPPORT_GDI_ARB', BOOL),
 163     ('WGL_SUPPORT_OPENGL_ARB', BOOL),
 164     ('WGL_DOUBLE_BUFFER_ARB', BOOL),
 165     ('WGL_STEREO_ARB', BOOL),
 166     ('WGL_PIXEL_TYPE_ARB', FakeEnum(Int, ['WGL_TYPE_RGBA_ARB', 'WGL_TYPE_COLORINDEX_ARB'])),
 167     ('WGL_COLOR_BITS_ARB', Int),
 168     ('WGL_RED_BITS_ARB', Int),
 169     ('WGL_GREEN_BITS_ARB', Int),
 170     ('WGL_BLUE_BITS_ARB', Int),
 171     ('WGL_ALPHA_BITS_ARB', Int),
 172     ('WGL_ACCUM_BITS_ARB', Int),
 173     ('WGL_ACCUM_RED_BITS_ARB', Int),
 174     ('WGL_ACCUM_GREEN_BITS_ARB', Int),
 175     ('WGL_ACCUM_BLUE_BITS_ARB', Int),
 176     ('WGL_ACCUM_ALPHA_BITS_ARB', Int),
 177     ('WGL_DEPTH_BITS_ARB', Int),
 178     ('WGL_STENCIL_BITS_ARB', Int),
 179     ('WGL_AUX_BUFFERS_ARB', Int)
 180 ]
 181
 182 WGLPixelFormatARBAttribs = AttribArray(WGLenum, WGLPixelFormatARBAttribsList)
 183 WGLPixelFormatARBFloatAttribs = AttribArray(WGLenum, WGLPixelFormatARBAttribsList, punType = FLOAT)
 184
 185 WGLPixelFormatEXTAttribsList = [
 186 #    ('WGL_NUMBER_PIXEL_FORMATS_EXT', Int), # not in ...ARB # only allowed in wglGetPixelFormatAttribiv
 187     ('WGL_DRAW_TO_WINDOW_ARB', BOOL),
 188     ('WGL_DRAW_TO_BITMAP_ARB', BOOL),
 189     ('WGL_ACCELERATION_ARB', FakeEnum(Int, ['WGL_NO_ACCELERATION_ARB', 'WGL_GENERIC_ACCELERATION_ARB', 'WGL_FULL_ACCELERATION_ARB'])),
 190     ('WGL_NEED_PALETTE_ARB', BOOL),
 191     ('WGL_NEED_SYSTEM_PALETTE_ARB', BOOL),
 192     ('WGL_SWAP_LAYER_BUFFERS_ARB', BOOL),
 193     ('WGL_SWAP_METHOD_ARB', FakeEnum(Int, ['WGL_SWAP_EXCHANGE_ARB', 'WGL_SWAP_COPY_ARB', 'WGL_SWAP_UNDEFINED_ARB'])),
 194     ('WGL_NUMBER_OVERLAYS_ARB', Int),
 195     ('WGL_NUMBER_UNDERLAYS_ARB', Int),
 196     ('WGL_TRANSPARENT_EXT', BOOL), # not in ...ARB
 197     ('WGL_TRANSPARENT_VALUE_EXT', Int), # not in ...ARB
 198     ('WGL_SHARE_DEPTH_ARB', BOOL),
 199     ('WGL_SHARE_STENCIL_ARB', BOOL),
 200     ('WGL_SHARE_ACCUM_ARB', BOOL),
 201     ('WGL_SUPPORT_GDI_ARB', BOOL),
 202     ('WGL_SUPPORT_OPENGL_ARB', BOOL),
 203     ('WGL_DOUBLE_BUFFER_ARB', BOOL),
 204     ('WGL_STEREO_ARB', BOOL),
 205     ('WGL_PIXEL_TYPE_ARB', FakeEnum(Int, ['WGL_TYPE_RGBA_ARB', 'WGL_TYPE_COLORINDEX_ARB'])),
 206     ('WGL_COLOR_BITS_ARB', Int),
 207     ('WGL_RED_BITS_ARB', Int),
 208     ('WGL_RED_SHIFT_EXT', Int), # not in ...ARB
 209     ('WGL_GREEN_BITS_ARB', Int),
 210     ('WGL_GREEN_SHIFT_EXT', Int), # not in ...ARB
 211     ('WGL_BLUE_BITS_ARB', Int),
 212     ('WGL_BLUE_SHIFT_EXT', Int), # not in ...ARB
 213     ('WGL_ALPHA_BITS_ARB', Int),
 214     ('WGL_ALPHA_SHIFT_EXT', Int), # not in ...ARB
 215     ('WGL_ACCUM_BITS_ARB', Int),
 216     ('WGL_ACCUM_RED_BITS_ARB', Int),
 217     ('WGL_ACCUM_GREEN_BITS_ARB', Int),
 218     ('WGL_ACCUM_BLUE_BITS_ARB', Int),
 219     ('WGL_ACCUM_ALPHA_BITS_ARB', Int),
 220     ('WGL_DEPTH_BITS_ARB', Int),
 221     ('WGL_STENCIL_BITS_ARB', Int),
 222     ('WGL_AUX_BUFFERS_ARB', Int)
 223 ]
 224
 225 WGLPixelFormatEXTAttribs = AttribArray(WGLenum, WGLPixelFormatEXTAttribsList)
 226 WGLPixelFormatEXTFloatAttribs = AttribArray(WGLenum, WGLPixelFormatEXTAttribsList, punType = FLOAT)
 227
 228 WGLCreatePbufferARBAttribs = AttribArray(WGLenum, [
 229     ('WGL_PBUFFER_LARGEST_ARB', Int)
 230 ])
 231
 232 CubeFaceEnum = FakeEnum(Int, [
 233     'WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB',
 234     'WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB',
 235     'WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB',
 236     'WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB',
 237     'WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB',
 238     'WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB'
 239 ])
 240
 241 WGLSetPbufferARBAttribs = AttribArray(WGLenum, [
 242     ('WGL_MIPMAP_LEVEL_ARB', Int),
 243     ('WGL_CUBE_MAP_FACE_ARB', CubeFaceEnum)
 244 ])
 245
 246 HPBUFFERARB = Alias("HPBUFFERARB", HANDLE)
 247
 248
 249 wglapi.addFunctions([
 250     # WGL
 251     StdFunction(HGLRC, "wglCreateContext", [(HDC, "hdc")]),
 252     StdFunction(BOOL, "wglDeleteContext", [(HGLRC, "hglrc")]),
 253     StdFunction(HGLRC, "wglGetCurrentContext", [], sideeffects=False),
 254     StdFunction(BOOL, "wglMakeCurrent", [(HDC, "hdc"), (HGLRC, "hglrc")]),
 255     StdFunction(BOOL, "wglCopyContext", [(HGLRC, "hglrcSrc"), (HGLRC, "hglrcDst"), (UINT, "mask")]),
 256     StdFunction(Int, "wglChoosePixelFormat", [(HDC, "hdc"), (Pointer(Const(PIXELFORMATDESCRIPTOR)), "ppfd")]),
 257     StdFunction(Int, "wglDescribePixelFormat", [(HDC, "hdc"), (Int, "iPixelFormat"), (UINT, "nBytes"), Out(Pointer(PIXELFORMATDESCRIPTOR), "ppfd")]),
 258     StdFunction(HDC, "wglGetCurrentDC", [], sideeffects=False),
 259     StdFunction(PROC, "wglGetDefaultProcAddress", [(LPCSTR, "lpszProc")], sideeffects=False),
 260     StdFunction(Int, "wglGetPixelFormat", [(HDC, "hdc")], sideeffects=False),
 261     StdFunction(BOOL, "wglSetPixelFormat", [(HDC, "hdc"), (Int, "iPixelFormat"), (Pointer(Const(PIXELFORMATDESCRIPTOR)), "ppfd")]),
 262     StdFunction(BOOL, "wglSwapBuffers", [(HDC, "hdc")]),
 263     StdFunction(BOOL, "wglShareLists", [(HGLRC, "hglrc1"), (HGLRC, "hglrc2")]),
 264     StdFunction(HGLRC, "wglCreateLayerContext", [(HDC, "hdc"), (Int, "iLayerPlane")]),
 265     StdFunction(BOOL, "wglDescribeLayerPlane", [(HDC, "hdc"), (Int, "iPixelFormat"), (Int, "iLayerPlane"), (UINT, "nBytes"), Out(Pointer(LAYERPLANEDESCRIPTOR), "plpd")]),
 266     StdFunction(Int, "wglSetLayerPaletteEntries", [(HDC, "hdc"), (Int, "iLayerPlane"), (Int, "iStart"), (Int, "cEntries"), (Array(Const(COLORREF), "cEntries"), "pcr")]),
 267     StdFunction(Int, "wglGetLayerPaletteEntries", [(HDC, "hdc"), (Int, "iLayerPlane"), (Int, "iStart"), (Int, "cEntries"), Out(Array(COLORREF, "cEntries"), "pcr")], sideeffects=False),
 268     StdFunction(BOOL, "wglRealizeLayerPalette", [(HDC, "hdc"), (Int, "iLayerPlane"), (BOOL, "bRealize")]),
 269     StdFunction(BOOL, "wglSwapLayerBuffers", [(HDC, "hdc"), (UINT, "fuPlanes")]),
 270     StdFunction(BOOL, "wglUseFontBitmapsA", [(HDC, "hdc"), (DWORD, "first"), (DWORD, "count"), (DWORD, "listBase")]),
 271     StdFunction(BOOL, "wglUseFontBitmapsW", [(HDC, "hdc"), (DWORD, "first"), (DWORD, "count"), (DWORD, "listBase")]),
 272     StdFunction(DWORD, "wglSwapMultipleBuffers", [(UINT, "n"), (Array(Const(WGLSWAP), "n"), "ps")]),
 273     StdFunction(BOOL, "wglUseFontOutlinesA", [(HDC, "hdc"), (DWORD, "first"), (DWORD, "count"), (DWORD, "listBase"), (FLOAT, "deviation"), (FLOAT, "extrusion"), (Int, "format"), (LPGLYPHMETRICSFLOAT, "lpgmf")]),
 274     StdFunction(BOOL, "wglUseFontOutlinesW", [(HDC, "hdc"), (DWORD, "first"), (DWORD, "count"), (DWORD, "listBase"), (FLOAT, "deviation"), (FLOAT, "extrusion"), (Int, "format"), (LPGLYPHMETRICSFLOAT, "lpgmf")]),
 275
 276     # WGL_ARB_buffer_region
 277     StdFunction(HANDLE, "wglCreateBufferRegionARB", [(HDC, "hDC"), (Int, "iLayerPlane"), (UINT, "uType")]),
 278     StdFunction(VOID, "wglDeleteBufferRegionARB", [(HANDLE, "hRegion")]),
 279     StdFunction(BOOL, "wglSaveBufferRegionARB", [(HANDLE, "hRegion"), (Int, "x"), (Int, "y"), (Int, "width"), (Int, "height")]),
 280     StdFunction(BOOL, "wglRestoreBufferRegionARB", [(HANDLE, "hRegion"), (Int, "x"), (Int, "y"), (Int, "width"), (Int, "height"), (Int, "xSrc"), (Int, "ySrc")]),
 281
 282     # WGL_ARB_extensions_string
 283     StdFunction(ConstCString, "wglGetExtensionsStringARB", [(HDC, "hdc")], sideeffects=False),
 284
 285     # WGL_ARB_pixel_format
 286     StdFunction(BOOL, "wglGetPixelFormatAttribivARB", [(HDC, "hdc"), (Int, "iPixelFormat"), (Int, "iLayerPlane"), (UINT, "nAttributes"), (Array(WGLenum, "nAttributes"), "piAttributes"), Out(Array(Int, "nAttributes"), "piValues")], sideeffects=False),
 287     StdFunction(BOOL, "wglGetPixelFormatAttribfvARB", [(HDC, "hdc"), (Int, "iPixelFormat"), (Int, "iLayerPlane"), (UINT, "nAttributes"), (Array(WGLenum, "nAttributes"), "piAttributes"), Out(Array(FLOAT, "nAttributes"), "pfValues")], sideeffects=False),
 288     StdFunction(BOOL, "wglChoosePixelFormatARB", [(HDC, "hdc"), (WGLPixelFormatARBAttribs, "piAttribIList"), (WGLPixelFormatARBFloatAttribs, "pfAttribFList"), (UINT, "nMaxFormats"), Out(Array(Int, "(*nNumFormats)"), "piFormats"), Out(Pointer(UINT), "nNumFormats")]),
 289
 290     # WGL_ARB_make_current_read
 291     StdFunction(BOOL, "wglMakeContextCurrentARB", [(HDC, "hDrawDC"), (HDC, "hReadDC"), (HGLRC, "hglrc")]),
 292     StdFunction(HDC, "wglGetCurrentReadDCARB", [], sideeffects=False),
 293
 294     # WGL_ARB_pbuffer
 295     StdFunction(HPBUFFERARB, "wglCreatePbufferARB", [(HDC, "hDC"), (Int, "iPixelFormat"), (Int, "iWidth"), (Int, "iHeight"), (WGLCreatePbufferARBAttribs, "piAttribList")]),
 296     StdFunction(HDC, "wglGetPbufferDCARB", [(HPBUFFERARB, "hPbuffer")]),
 297     StdFunction(Int, "wglReleasePbufferDCARB", [(HPBUFFERARB, "hPbuffer"), (HDC, "hDC")]),
 298     StdFunction(BOOL, "wglDestroyPbufferARB", [(HPBUFFERARB, "hPbuffer")]),
 299     StdFunction(BOOL, "wglQueryPbufferARB", [(HPBUFFERARB, "hPbuffer"), (WGLenum, "iAttribute"), Out(Pointer(Int), "piValue")], sideeffects=False),
 300
 301     # WGL_ARB_render_texture
 302     StdFunction(BOOL, "wglBindTexImageARB", [(HPBUFFERARB, "hPbuffer"), (Int, "iBuffer")]),
 303     StdFunction(BOOL, "wglReleaseTexImageARB", [(HPBUFFERARB, "hPbuffer"), (Int, "iBuffer")]),
 304     StdFunction(BOOL, "wglSetPbufferAttribARB", [(HPBUFFERARB, "hPbuffer"), (WGLSetPbufferARBAttribs, "piAttribList")]),
 305
 306     # WGL_ARB_create_context
 307     StdFunction(HGLRC, "wglCreateContextAttribsARB", [(HDC, "hDC"), (HGLRC, "hShareContext"), (WGLContextAttribs, "attribList")]),
 308
 309     # WGL_EXT_extensions_string
 310     StdFunction(ConstCString, "wglGetExtensionsStringEXT", [], sideeffects=False),
 311
 312     # WGL_EXT_make_current_read
 313     StdFunction(BOOL, "wglMakeContextCurrentEXT", [(HDC, "hDrawDC"), (HDC, "hReadDC"), (HGLRC, "hglrc")]),
 314     StdFunction(HDC, "wglGetCurrentReadDCEXT", [], sideeffects=False),
 315
 316     # WGL_EXT_pixel_format
 317     StdFunction(BOOL, "wglGetPixelFormatAttribivEXT", [(HDC, "hdc"), (Int, "iPixelFormat"), (Int, "iLayerPlane"), (UINT, "nAttributes"), (Array(WGLenum, "nAttributes"), "piAttributes"), Out(Array(Int, "nAttributes"), "piValues")], sideeffects=False),
 318     StdFunction(BOOL, "wglGetPixelFormatAttribfvEXT", [(HDC, "hdc"), (Int, "iPixelFormat"), (Int, "iLayerPlane"), (UINT, "nAttributes"), (Array(WGLenum, "nAttributes"), "piAttributes"), Out(Array(FLOAT, "nAttributes"), "pfValues")], sideeffects=False),
 319     StdFunction(BOOL, "wglChoosePixelFormatEXT", [(HDC, "hdc"), (WGLPixelFormatEXTAttribs, "piAttribIList"), (WGLPixelFormatEXTFloatAttribs, "pfAttribFList"), (UINT, "nMaxFormats"), Out(Array(Int, "*nNumFormats"), "piFormats"), Out(Pointer(UINT), "nNumFormats")]),
 320
 321     # WGL_EXT_swap_control
 322     StdFunction(BOOL, "wglSwapIntervalEXT", [(Int, "interval")]),
 323     StdFunction(Int, "wglGetSwapIntervalEXT", [], sideeffects=False),
 324
 325     # WGL_NV_vertex_array_range
 326     StdFunction(OpaquePointer(Void), "wglAllocateMemoryNV", [(GLsizei, "size"), (GLfloat, "readfreq"), (GLfloat, "writefreq"), (GLfloat, "priority")]),
 327     StdFunction(Void, "wglFreeMemoryNV", [(OpaquePointer(Void), "pointer")]),
 328
 329     # must be last
 330     StdFunction(PROC, "wglGetProcAddress", [(LPCSTR, "lpszProc")]),
 331 ])