/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.opengl.internal.win32;


import org.eclipse.swt.opengl.*;
import org.eclipse.swt.opengl.Library;
import org.eclipse.swt.internal.win32.OS;

public class WGL {
	
static {
	Library.loadLibrary("gl");
}
	
public static final int WGL_FONT_LINES      = 0;
public static final int WGL_FONT_POLYGONS   = 1;

/* LAYERPLANEDESCRIPTOR flags */
public static final int LPD_DOUBLEBUFFER        = 0x00000001;
public static final int LPD_STEREO              = 0x00000002;
public static final int LPD_SUPPORT_GDI         = 0x00000010;
public static final int LPD_SUPPORT_OPENGL      = 0x00000020;
public static final int LPD_SHARE_DEPTH         = 0x00000040;
public static final int LPD_SHARE_STENCIL       = 0x00000080;
public static final int LPD_SHARE_ACCUM         = 0x00000100;
public static final int LPD_SWAP_EXCHANGE       = 0x00000200;
public static final int LPD_SWAP_COPY           = 0x00000400;
public static final int LPD_TRANSPARENT         = 0x00001000;

public static final int LPD_TYPE_RGBA        = 0;
public static final int LPD_TYPE_COLORINDEX  = 1;

/* wglSwapLayerBuffers flags */
public static final int WGL_SWAP_MAIN_PLANE     = 0x00000001;
public static final int WGL_SWAP_OVERLAY1       = 0x00000002;
public static final int WGL_SWAP_OVERLAY2       = 0x00000004;
public static final int WGL_SWAP_OVERLAY3       = 0x00000008;
public static final int WGL_SWAP_OVERLAY4       = 0x00000010;
public static final int WGL_SWAP_OVERLAY5       = 0x00000020;
public static final int WGL_SWAP_OVERLAY6       = 0x00000040;
public static final int WGL_SWAP_OVERLAY7       = 0x00000080;
public static final int WGL_SWAP_OVERLAY8       = 0x00000100;
public static final int WGL_SWAP_OVERLAY9       = 0x00000200;
public static final int WGL_SWAP_OVERLAY10      = 0x00000400;
public static final int WGL_SWAP_OVERLAY11      = 0x00000800;
public static final int WGL_SWAP_OVERLAY12      = 0x00001000;
public static final int WGL_SWAP_OVERLAY13      = 0x00002000;
public static final int WGL_SWAP_OVERLAY14      = 0x00004000;
public static final int WGL_SWAP_OVERLAY15      = 0x00008000;
public static final int WGL_SWAP_UNDERLAY1      = 0x00010000;
public static final int WGL_SWAP_UNDERLAY2      = 0x00020000;
public static final int WGL_SWAP_UNDERLAY3      = 0x00040000;
public static final int WGL_SWAP_UNDERLAY4      = 0x00080000;
public static final int WGL_SWAP_UNDERLAY5      = 0x00100000;
public static final int WGL_SWAP_UNDERLAY6      = 0x00200000;
public static final int WGL_SWAP_UNDERLAY7      = 0x00400000;
public static final int WGL_SWAP_UNDERLAY8      = 0x00800000;
public static final int WGL_SWAP_UNDERLAY9      = 0x01000000;
public static final int WGL_SWAP_UNDERLAY10     = 0x02000000;
public static final int WGL_SWAP_UNDERLAY11     = 0x04000000;
public static final int WGL_SWAP_UNDERLAY12     = 0x08000000;
public static final int WGL_SWAP_UNDERLAY13     = 0x10000000;
public static final int WGL_SWAP_UNDERLAY14     = 0x20000000;
public static final int WGL_SWAP_UNDERLAY15     = 0x40000000;

/* pixel types */
public static final int PFD_TYPE_RGBA        = 0;
public static final int PFD_TYPE_COLORINDEX  = 1;

/* layer types */
public static final int PFD_MAIN_PLANE       = 0;
public static final int PFD_OVERLAY_PLANE    = 1;
public static final int PFD_UNDERLAY_PLANE   = (-1);

/* PIXELFORMATDESCRIPTOR flags */
public static final int PFD_DOUBLEBUFFER            = 0x00000001;
public static final int PFD_STEREO                  = 0x00000002;
public static final int PFD_DRAW_TO_WINDOW          = 0x00000004;
public static final int PFD_DRAW_TO_BITMAP          = 0x00000008;
public static final int PFD_SUPPORT_GDI             = 0x00000010;
public static final int PFD_SUPPORT_OPENGL          = 0x00000020;
public static final int PFD_GENERIC_FORMAT          = 0x00000040;
public static final int PFD_NEED_PALETTE            = 0x00000080;
public static final int PFD_NEED_SYSTEM_PALETTE     = 0x00000100;
public static final int PFD_SWAP_EXCHANGE           = 0x00000200;
public static final int PFD_SWAP_COPY               = 0x00000400;
public static final int PFD_SWAP_LAYER_BUFFERS      = 0x00000800;
public static final int PFD_GENERIC_ACCELERATED     = 0x00001000;
public static final int PFD_SUPPORT_DIRECTDRAW      = 0x00002000;

/* PIXELFORMATDESCRIPTOR flags for use in ChoosePixelFormat only */
public static final int PFD_DEPTH_DONTCARE          = 0x20000000;
public static final int PFD_DOUBLEBUFFER_DONTCARE   = 0x40000000;
public static final int PFD_STEREO_DONTCARE         = 0x80000000;

public static final native int ChoosePixelFormat(int hdc, PIXELFORMATDESCRIPTOR ppfd);
public static final native int DescribePixelFormat(int hdc, int iPixelFormat, int nBytes, PIXELFORMATDESCRIPTOR ppfd);
public static final native int GetPixelFormat(int hdc);
public static final native boolean SetPixelFormat(int hdc, int iPixelFormat, PIXELFORMATDESCRIPTOR ppfd);
public static final native boolean SwapBuffers(int hdc);
public static final native boolean wglCopyContext(int hglrcSrc, int hglrcDst, int mask);
public static final native int wglCreateContext(int hdc);
public static final native int wglCreateLayerContext(int hdc, int iLayerPlane);
public static final native boolean wglDeleteContext(int hglrc);
public static final native int wglGetCurrentContext();
public static final native int wglGetCurrentDC();
public static final native int wglGetProcAddress(byte[] lpszProc);
public static final native boolean wglMakeCurrent(int hdc, int hglrc);
public static final native boolean wglShareLists(int hglrc1, int hglrc2);
public static final native boolean wglUseFontBitmapsA(int hdc, int first, int count, int listBase);
public static final native boolean wglUseFontBitmapsW(int hdc, int first, int count, int listBase);
public static final boolean wglUseFontBitmaps(int hdc, int first, int count, int listBase) {
	if (OS.IsUnicode) return wglUseFontBitmapsW(hdc, first, count, listBase);
	return wglUseFontBitmapsA(hdc, first, count, listBase);
}
public static final native boolean wglUseFontOutlinesA(int hdc, int first, int count, int listBase, float deviation, float extrusion, int format, int lpgmf);
public static final native boolean wglUseFontOutlinesW(int hdc, int first, int count, int listBase, float deviation, float extrusion, int format, int lpgmf);
public static final boolean wglUseFontOutlines(int hdc, int first, int count, int listBase, float deviation, float extrusion, int format, int lpgmf) {
	if (OS.IsUnicode) return wglUseFontOutlinesW(hdc, first, count, listBase, deviation, extrusion, format, lpgmf);
	return wglUseFontOutlinesA(hdc, first, count, listBase, deviation, extrusion, format, lpgmf);
}
public static final native boolean wglDescribeLayerPlane(int hdc, int iPixelFormat, int iLayerPlane, int nBytes, LAYERPLANEDESCRIPTOR plpd);
public static final native int wglSetLayerPaletteEntries(int hdc, int iLayerPlane, int iStart, int cEntries, int[] pcr);
public static final native int wglGetLayerPaletteEntries(int hdc, int iLayerPlane, int iStart, int cEntries, int[] pcr);
public static final native boolean wglRealizeLayerPalette(int hdc, int iLayerPlane, boolean bRealize);
public static final native boolean wglSwapLayerBuffers(int hdc, int fuPlanes);
public static final void MoveMemory (GLYPHMETRICSFLOAT Destination, int Source, int Length) {
	if (OS.IsUnicode) MoveMemoryW (Destination, Source, Length);
	else MoveMemoryA(Destination, Source, Length);
}
public static final native void MoveMemoryA (GLYPHMETRICSFLOAT Destination, int Source, int Length);
public static final native void MoveMemoryW (GLYPHMETRICSFLOAT Destination, int Source, int Length);
}