From 9149f375d1b14c84f99f92b3d4d8f7fd5329dd9b Mon Sep 17 00:00:00 2001
From: Joe Groff <arcata@gmail.com>
Date: Thu, 30 Apr 2009 21:35:50 -0500
Subject: [PATCH] WGL_ARB_pixel_format extension binding

---
 basis/windows/opengl32/opengl32.factor | 112 ++++++++++++++++++++++++-
 1 file changed, 109 insertions(+), 3 deletions(-)

diff --git a/basis/windows/opengl32/opengl32.factor b/basis/windows/opengl32/opengl32.factor
index f63a4a956a..d5e8fe9a66 100755
--- a/basis/windows/opengl32/opengl32.factor
+++ b/basis/windows/opengl32/opengl32.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types alien.syntax parser namespaces kernel
 math math.bitwise windows.types init assocs
-sequences libc opengl.gl ;
+sequences libc opengl.gl opengl.gl.extensions opengl.gl.windows ;
 IN: windows.opengl32
 
 ! PIXELFORMATDESCRIPTOR flags
@@ -101,5 +101,111 @@ FUNCTION: HGLRC wglCreateContext ( HDC hDC ) ;
 FUNCTION: BOOL wglDeleteContext ( HGLRC hRC ) ;
 FUNCTION: BOOL wglMakeCurrent ( HDC hDC, HGLRC hglrc ) ;
 
-FUNCTION: HGLRC wglGetCurrentContext ( ) ;
-FUNCTION: void* wglGetProcAddress ( char* name ) ;
+! WGL_ARB_extensions_string extension
+
+GL-FUNCTION: char* wglGetExtensionsStringARB ( HDC hDC ) ;
+
+! WGL_ARB_pixel_format extension
+
+CONSTANT: WGL_NUMBER_PIXEL_FORMATS_ARB    HEX: 2000
+CONSTANT: WGL_DRAW_TO_WINDOW_ARB          HEX: 2001
+CONSTANT: WGL_DRAW_TO_BITMAP_ARB          HEX: 2002
+CONSTANT: WGL_ACCELERATION_ARB            HEX: 2003
+CONSTANT: WGL_NEED_PALETTE_ARB            HEX: 2004
+CONSTANT: WGL_NEED_SYSTEM_PALETTE_ARB     HEX: 2005
+CONSTANT: WGL_SWAP_LAYER_BUFFERS_ARB      HEX: 2006
+CONSTANT: WGL_SWAP_METHOD_ARB             HEX: 2007
+CONSTANT: WGL_NUMBER_OVERLAYS_ARB         HEX: 2008
+CONSTANT: WGL_NUMBER_UNDERLAYS_ARB        HEX: 2009
+CONSTANT: WGL_TRANSPARENT_ARB             HEX: 200A
+CONSTANT: WGL_TRANSPARENT_RED_VALUE_ARB   HEX: 2037
+CONSTANT: WGL_TRANSPARENT_GREEN_VALUE_ARB HEX: 2038
+CONSTANT: WGL_TRANSPARENT_BLUE_VALUE_ARB  HEX: 2039
+CONSTANT: WGL_TRANSPARENT_ALPHA_VALUE_ARB HEX: 203A
+CONSTANT: WGL_TRANSPARENT_INDEX_VALUE_ARB HEX: 203B
+CONSTANT: WGL_SHARE_DEPTH_ARB             HEX: 200C
+CONSTANT: WGL_SHARE_STENCIL_ARB           HEX: 200D
+CONSTANT: WGL_SHARE_ACCUM_ARB             HEX: 200E
+CONSTANT: WGL_SUPPORT_GDI_ARB             HEX: 200F
+CONSTANT: WGL_SUPPORT_OPENGL_ARB          HEX: 2010
+CONSTANT: WGL_DOUBLE_BUFFER_ARB           HEX: 2011
+CONSTANT: WGL_STEREO_ARB                  HEX: 2012
+CONSTANT: WGL_PIXEL_TYPE_ARB              HEX: 2013
+CONSTANT: WGL_COLOR_BITS_ARB              HEX: 2014
+CONSTANT: WGL_RED_BITS_ARB                HEX: 2015
+CONSTANT: WGL_RED_SHIFT_ARB               HEX: 2016
+CONSTANT: WGL_GREEN_BITS_ARB              HEX: 2017
+CONSTANT: WGL_GREEN_SHIFT_ARB             HEX: 2018
+CONSTANT: WGL_BLUE_BITS_ARB               HEX: 2019
+CONSTANT: WGL_BLUE_SHIFT_ARB              HEX: 201A
+CONSTANT: WGL_ALPHA_BITS_ARB              HEX: 201B
+CONSTANT: WGL_ALPHA_SHIFT_ARB             HEX: 201C
+CONSTANT: WGL_ACCUM_BITS_ARB              HEX: 201D
+CONSTANT: WGL_ACCUM_RED_BITS_ARB          HEX: 201E
+CONSTANT: WGL_ACCUM_GREEN_BITS_ARB        HEX: 201F
+CONSTANT: WGL_ACCUM_BLUE_BITS_ARB         HEX: 2020
+CONSTANT: WGL_ACCUM_ALPHA_BITS_ARB        HEX: 2021
+CONSTANT: WGL_DEPTH_BITS_ARB              HEX: 2022
+CONSTANT: WGL_STENCIL_BITS_ARB            HEX: 2023
+CONSTANT: WGL_AUX_BUFFERS_ARB             HEX: 2024
+
+CONSTANT: WGL_NO_ACCELERATION_ARB         HEX: 2025
+CONSTANT: WGL_GENERIC_ACCELERATION_ARB    HEX: 2026
+CONSTANT: WGL_FULL_ACCELERATION_ARB       HEX: 2027
+
+CONSTANT: WGL_SWAP_EXCHANGE_ARB           HEX: 2028
+CONSTANT: WGL_SWAP_COPY_ARB               HEX: 2029
+CONSTANT: WGL_SWAP_UNDEFINED_ARB          HEX: 202A
+
+CONSTANT: WGL_TYPE_RGBA_ARB               HEX: 202B
+CONSTANT: WGL_TYPE_COLORINDEX_ARB         HEX: 202C
+
+GL-FUNCTION: BOOL wglGetPixelFormatAttribivARB (
+        HDC hdc,
+        int iPixelFormat,
+        int iLayerPlane,
+        UINT nAttributes,
+        int* piAttributes,
+        int* piValues
+    ) ;
+
+GL-FUNCTION: BOOL wglGetPixelFormatAttribfvARB (
+        HDC hdc,
+        int iPixelFormat,
+        int iLayerPlane,
+        UINT nAttributes,
+        int* piAttributes,
+        FLOAT* pfValues
+    ) ;
+
+GL-FUNCTION: BOOL wglChoosePixelFormatARB (
+        HDC hdc,
+        int* piAttribIList,
+        FLOAT* pfAttribFList,
+        UINT nMaxFormats,
+        int* piFormats,
+        UINT* nNumFormats
+    ) ;
+
+! WGL_ARB_multisample extension
+
+CONSTANT: WGL_SAMPLE_BUFFERS_ARB HEX: 2041
+CONSTANT: WGL_SAMPLES_ARB        HEX: 2042
+
+! WGL_ARB_pixel_format_float extension
+
+CONSTANT: WGL_TYPE_RGBA_FLOAT_ARB HEX: 21A0
+
+! wgl extensions querying
+
+: has-wglGetExtensionsStringARB? ( -- ? )
+    "wglGetExtensionsStringARB" wglGetProcAddress >boolean ;
+
+: wgl-extensions ( hdc -- extensions )
+    has-wglGetExtensionsStringARB? [ wglGetExtensionsStringARB " " split ] [ drop { } ] if ;
+
+: has-wgl-extensions? ( hdc extensions -- ? )
+    swap wgl-extensions [ member? ] curry all? ;
+
+: has-wgl-pixel-format-extension? ( hdc -- ? )
+    { "WGL_ARB_pixel_format" } has-wgl-extensions? ;
-- 
2.34.1