718 lines
26 KiB
C
718 lines
26 KiB
C
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#ifndef __glcontext_h_
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#define __glcontext_h_
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/*
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** Copyright 1991, Silicon Graphics, Inc.
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** All Rights Reserved.
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**
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** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
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** the contents of this file may not be disclosed to third parties, copied or
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** duplicated in any form, in whole or in part, without the prior written
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** permission of Silicon Graphics, Inc.
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**
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** RESTRICTED RIGHTS LEGEND:
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** Use, duplication or disclosure by the Government is subject to restrictions
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** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
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** and Computer Software clause at DFARS 252.227-7013, and/or in similar or
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** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
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** rights reserved under the Copyright Laws of the United States.
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**
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** Graphics context structures.
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*/
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#include "os.h"
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#include "attrib.h"
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#include "feedback.h"
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#include "select.h"
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#include "buffers.h"
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#include "pixel.h"
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#include "dlist.h"
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#include "xform.h"
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#include "render.h"
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#include "glinterf.h"
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#include "dispatch.h"
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#include "parray.h"
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#include "procs.h"
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#include "gldrv.h"
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#include "glarray.h"
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// Disable long to float conversion warning. see also gencx.h
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#pragma warning (disable:4244)
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/*
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** Various constants. Most of these will never change through the life
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** of the context.
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*/
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typedef struct __GLcontextConstantsRec {
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#ifdef NT_DEADCODE_CONSTANTS
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__GLfloat half;
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__GLfloat one;
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__GLfloat val255;
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__GLfloat oneOver255;
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__GLfloat val65535;
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__GLfloat oneOver65535;
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/*
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** Not quite 2^31-1 because of possible floating point errors. 4294965000
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** is a much safer number to use.
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*/
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__GLfloat val4294965000;
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__GLfloat oneOver4294965000;
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#endif // NT_DEADCODE_CONSTANTS
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#ifdef NT_DEADCODE_GETSTRING
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/* Stuff for glGetString */
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char *vendor;
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char *renderer;
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char *version;
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char *extensions;
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#endif // NT_DEADCODE_GETSTRING
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/* Specific size limits */
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GLint numberOfLights;
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GLint numberOfClipPlanes;
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GLint numberOfTextures;
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GLint numberOfTextureEnvs;
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GLint maxViewportWidth;
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GLint maxViewportHeight;
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/*
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** Viewport offsets: These numbers are added to the viewport center
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** values to adjust the computed window coordinates into a
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** numerically well behaved space (fixed point represented in a
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** floating point number).
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*/
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GLint viewportXAdjust;
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GLint viewportYAdjust;
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__GLfloat fviewportXAdjust;
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__GLfloat fviewportYAdjust;
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/*
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** These values are computed from viewportXAdjust when the context
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** is created. It is assumed that x and y are forced into the same
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** fixed point range by viewportXAdjust and viewportYAdjust.
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**
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** viewportEpsilon is computed as the smallest possible value that can
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** be represented in that fixed point space.
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**
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** viewportAlmostHalf is equal to 0.5 - viewportEpsilon.
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*/
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__GLfloat viewportEpsilon;
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__GLfloat viewportAlmostHalf;
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/* Scales that bring colors values from 0.0 to 1.0 into internal range */
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__GLfloat redScale, blueScale, greenScale, alphaScale;
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/*
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** Geometry of the current window.
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*/
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GLint width, height;
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/*
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** Size of the alpha lookup table for alpha testing, and conversion
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** value to convert from scaled alpha to alpha to be used for lookup table.
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*/
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GLint alphaTestSize;
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__GLfloat alphaTableConv;
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/*
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** Random getable constants
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*/
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GLint maxTextureSize;
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GLint maxMipMapLevel;
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GLint subpixelBits;
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GLint maxListNesting;
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__GLfloat pointSizeMinimum;
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__GLfloat pointSizeMaximum;
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__GLfloat pointSizeGranularity;
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__GLfloat lineWidthMinimum;
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__GLfloat lineWidthMaximum;
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__GLfloat lineWidthGranularity;
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GLint maxEvalOrder;
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GLint maxPixelMapTable;
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GLint maxAttribStackDepth;
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GLint maxClientAttribStackDepth;
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GLint maxNameStackDepth;
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#ifdef NT_DEADCODE_MATRIX
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GLint maxModelViewStackDepth;
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GLint maxProjectionStackDepth;
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GLint maxTextureStackDepth;
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#endif // NT_DEADCODE_MATRIX
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#ifdef NT_DEADCODE_CONSTANTS
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// This is now a global (__glUByteToFloat).
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/*
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** This is used by the macro __GL_UB_TO_FLOAT which converts
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** unsigned bytes to floats in the range [0,1]. Once is enough!
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*/
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GLfloat uByteToFloat[256];
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#endif // NT_DEADCODE_CONSTANTS
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/*
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** On the REX, y is inverted. These two constants help out.
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*/
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GLboolean yInverted;
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GLint ySign;
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} __GLcontextConstants;
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/************************************************************************/
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typedef enum __GLbeginModeEnum {
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__GL_NOT_IN_BEGIN = 0,
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__GL_IN_BEGIN = 1,
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__GL_NEED_VALIDATE = 2
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} __GLbeginMode;
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#ifdef unix
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/*
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** Bits for gcState
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** __GL_INIT_HW is set if the hardware has been initialized.
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** __GL_HW_MODE is set if the hardware was mode was used last.
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** __GL_PIXMAP_MODE is set if pixmap rendering was done last.
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*/
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#define __GL_INIT_HW 0x00000001
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#define __GL_HW_MODE 0x00000002
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#define __GL_PIXMAP_MODE 0x00000004
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#endif
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#ifdef NT
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/*
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** NT Bits for gcState
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*/
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#define __GL_INIT_CONTEXT 0x00000001
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#endif /* NT */
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#ifdef NT_SERVER_SHARE_LISTS
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//
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// Information for tracking dlist locks so we know what to unlock during
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// cleanup
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//
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typedef struct _DlLockEntry
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{
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__GLdlist *dlist;
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} DlLockEntry;
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typedef struct _DlLockArray
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{
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GLsizei nAllocated;
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GLsizei nFilled;
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DlLockEntry *pdleEntries;
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} DlLockArray;
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#endif
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struct __GLcontextRec {
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/*
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** Os related interfaces; these *must* be the first members of this
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** structure, because they are exposed to the outside world (i.e. GLX
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** extension).
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*/
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__GLimports imports;
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#ifdef NT_DEADCODE_EXPORTS
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__GLexports exports;
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#endif // NT_DEADCODE_EXPORTS
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/************************************************************************/
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/*
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** State var indicating what the state of this GC is.
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*/
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GLint gcState;
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/************************************************************************/
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/*
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** Stackable state. All of the current user controllable state
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** is resident here.
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*/
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__GLattribute state;
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/************************************************************************/
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/*
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** Unstackable State
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*/
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/*
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** Current glBegin mode. Legal values are 0 (not in begin mode), 1
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** (in beginMode), or 2 (not in begin mode, some validation is
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** needed). Because all state changing routines have to fetch this
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** value, we have overloaded state validation into it. There is
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** special code in the __glim_Begin (for software renderers) which
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** deals with validation.
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*/
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__GLbeginMode beginMode;
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/* Current rendering mode */
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GLenum renderMode;
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/*
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** Most recent error code, or GL_NO_ERROR if no error has occurred
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** since the last glGetError.
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*/
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GLint error;
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/*
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** Mode information that describes the kind of buffers and rendering
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** modes that this context manages.
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*/
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__GLcontextModes modes;
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/* Implementation dependent constants */
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__GLcontextConstants constants;
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/* Feedback and select state */
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__GLfeedbackMachine feedback;
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__GLselectMachine select;
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/* Display list state */
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__GLdlistMachine dlist;
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#ifdef NT
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/* Server side dispatch table */
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__GLsrvDispatchTable srvDispatchTable;
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/* Saved client side dispatch tables. Used by display list. */
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GLCLTPROCTABLE savedCltProcTable;
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GLEXTPROCTABLE savedExtProcTable;
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#endif
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#ifdef NT_DEADCODE_DISPATCH
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/*
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** Current dispatch tables state. currentDispatchState is used to
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** save/restore the global dispatch pointers state by glXMakeCurrent.
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** When making a new context current, first the old context's global
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** pointers state will be saved in its currentDispatchState and then
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** the new context's dispatch table pointers state will be copied
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** from its currentDispatchState into the global pointers state.
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**
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** When entering list-compilation mode (NewList) the value of the
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** global state will be copied into savedDispatchState. Then the
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** global state will be loaded with the values in listCompState. For
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** compile and execute to work, the compilation routines will invoke
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** procedures as follows:
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**
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** (*gc->savedDispatchState.vertex->vertex3fv)(v).
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**
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** Any "pick" procs that might be updating the dispatch tables on the
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** fly as state changes occur need to know which set of pointers
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** to update. In this case the "pick" procs use the dispatchState
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** pointer which will point to either the global pointers or to
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** savedDispatchState.
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**
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** Finally, executing a CallList or CallLists while in display list
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** compile and execute mode requires special treatment. In this case
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** the CallList/CallLists call will be recorded in the display list
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** being constructed. Next, the code will temporarily switch the
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** global pointers to contain the contents of savedDispatchState.
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** After calling the immediate mode CallList/CallLists code (using
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** gc->savedDispatchState to get its address), the global pointers
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** will be reset to point back to the list compilation routines.
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*/
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__GLdispatchState *dispatchState;
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__GLdispatchState listCompState;
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__GLdispatchState currentDispatchState;
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__GLdispatchState savedDispatchState;
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#endif // NT_DEADCODE_DISPATCH
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/************************************************************************/
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/*
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** The remaining state is used primarily by the software renderer.
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*/
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/*
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** Mask word for validation state to help guide the gc validation
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** code. Only operations which are largely expensive are broken
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** out here. See the #define's below for the values being used.
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*/
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GLuint validateMask;
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/*
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** Mask word of dirty bits. Most routines just set the GENERIC bit to
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** dirty, others may set more specific bits. The list of bits is
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** listed below.
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*/
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GLuint dirtyMask;
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/* Current draw buffer, set by glDrawBuffer */
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__GLcolorBuffer *drawBuffer;
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/* Current read buffer, set by glReadBuffer */
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__GLcolorBuffer *readBuffer;
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/* Function pointers that are mode dependent */
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__GLprocs procs;
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/* Attribute stack state */
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__GLattributeMachine attributes;
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/* Client attribute stack state */
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__GLclientAttributeMachine clientAttributes;
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/* Machine structures defining software rendering "machine" state */
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__GLvertexMachine vertex;
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__GLlightMachine light;
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__GLtextureMachine texture;
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__GLevaluatorMachine eval;
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__GLtransformMachine transform;
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__GLlineMachine line;
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__GLpolygonMachine polygon;
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__GLpixelMachine pixel;
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__GLbufferMachine buffers;
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#ifdef NT
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__GLfloat redClampTable[4];
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__GLfloat greenClampTable[4];
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__GLfloat blueClampTable[4];
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__GLfloat alphaClampTable[4];
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__GLfloat oneOverRedVertexScale;
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__GLfloat oneOverGreenVertexScale;
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__GLfloat oneOverBlueVertexScale;
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__GLfloat oneOverAlphaVertexScale;
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__GLfloat redVertexScale;
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__GLfloat greenVertexScale;
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__GLfloat blueVertexScale;
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__GLfloat alphaVertexScale;
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GLuint textureKey;
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#endif
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/* Buffers */
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__GLcolorBuffer *front;
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__GLcolorBuffer *back;
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__GLcolorBuffer frontBuffer;
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__GLcolorBuffer backBuffer;
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__GLcolorBuffer *auxBuffer;
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__GLstencilBuffer stencilBuffer;
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__GLdepthBuffer depthBuffer;
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__GLaccumBuffer accumBuffer;
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/* Pointer to drawable private data */
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__GLdrawablePrivate *drawablePrivate;
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#ifdef NT
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// Temporary buffers allocated by the gc. The abnormal process exit
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// code will release these buffers.
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void * apvTempBuf[6];
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#endif // NT
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#ifdef NT_SERVER_SHARE_LISTS
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DlLockArray dla;
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#endif
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#ifdef NT
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// TEB polyarray pointer for this thread. It allows fast access to the
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// polyarray structure in the TEB equivalent to the GLTEB_CLTPOLYARRAY
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// macro. This field is kept current in MakeCurrent.
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POLYARRAY *paTeb;
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// Vertex array client states
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__GLvertexArray vertexArray;
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// Saved vertex array state for execution of display-listed
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// vertex array calls
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__GLvertexArray savedVertexArray;
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__GLmatrix *mInv;
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#endif // NT
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};
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#ifdef NT
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// Temporay buffer management functions
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BOOL __wglInitTempAlloc(void);
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void * __wglTempAlloc(__GLcontext *Gc, size_t Size);
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void __wglTempFree(__GLcontext *Gc, void *Addr);
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// Associate the temporary buffer with the gc for abnormal process cleanup.
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#define GC_TEMP_BUFFER_ALLOC(gc, pv) \
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{ \
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int _i; \
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for (_i = 0; _i < sizeof(gc->apvTempBuf)/sizeof(void *); _i++)\
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{ \
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if (!gc->apvTempBuf[_i]) \
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{ \
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gc->apvTempBuf[_i] = pv; \
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break; \
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} \
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} \
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ASSERTOPENGL(_i < sizeof(gc->apvTempBuf)/sizeof(void *), \
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"gc->apvTempBuf overflows\n"); \
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}
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// Unassociate the temporary buffer with the gc.
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#define GC_TEMP_BUFFER_FREE(gc, pv) \
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{ \
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int _i; \
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for (_i = 0; _i < sizeof(gc->apvTempBuf)/sizeof(void *); _i++)\
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{ \
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if (gc->apvTempBuf[_i] == pv) \
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{ \
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gc->apvTempBuf[_i] = (void *) NULL; \
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break; \
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} \
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} \
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ASSERTOPENGL(_i < sizeof(gc->apvTempBuf)/sizeof(void *), \
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"gc->apvTempBuf entry not found\n"); \
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}
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// Cleanup any temporary buffer allocated in gc in abnormal process exit.
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#define GC_TEMP_BUFFER_EXIT_CLEANUP(gc) \
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{ \
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int _i; \
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for (_i = 0; _i < sizeof(gc->apvTempBuf)/sizeof(void *); _i++)\
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{ \
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||
|
if (gc->apvTempBuf[_i]) \
|
||
|
{ \
|
||
|
WARNING("Abnormal process exit: free allocated buffers\n");\
|
||
|
__wglTempFree(gc, gc->apvTempBuf[_i]); \
|
||
|
gc->apvTempBuf[_i] = (void *) NULL; \
|
||
|
} \
|
||
|
} \
|
||
|
}
|
||
|
#endif // NT
|
||
|
|
||
|
/*
|
||
|
** Bit values for the validateMask word
|
||
|
*/
|
||
|
#define __GL_VALIDATE_ALPHA_FUNC 0x00000001
|
||
|
#define __GL_VALIDATE_STENCIL_FUNC 0x00000002
|
||
|
#define __GL_VALIDATE_STENCIL_OP 0x00000004
|
||
|
|
||
|
/*
|
||
|
** Bit values for dirtyMask word.
|
||
|
**
|
||
|
** These are all for delayed validation. There are a few things that do
|
||
|
** not trigger delayed validation. They are:
|
||
|
**
|
||
|
** Matrix operations -- matrices are validated immediately.
|
||
|
** Material changes -- they also validate immediately.
|
||
|
** Color Material change -- validated immediately.
|
||
|
** Color Material enable -- validated immediately.
|
||
|
** Pixel Map changes -- no validation.
|
||
|
*/
|
||
|
|
||
|
/*
|
||
|
** All things not listed elsewhere.
|
||
|
*/
|
||
|
#define __GL_DIRTY_GENERIC 0x00000001
|
||
|
|
||
|
/*
|
||
|
** Line stipple, line stipple enable, line width, line smooth enable,
|
||
|
** line smooth hint.
|
||
|
*/
|
||
|
#define __GL_DIRTY_LINE 0x00000002
|
||
|
|
||
|
/*
|
||
|
** Polygon stipple, polygon stipple enable, polygon smooth enable, face
|
||
|
** culling, front face orientation, polygon mode, point smooth hint.
|
||
|
*/
|
||
|
#define __GL_DIRTY_POLYGON 0x00000004
|
||
|
|
||
|
/*
|
||
|
** Point smooth, point smooth hint, point width.
|
||
|
*/
|
||
|
#define __GL_DIRTY_POINT 0x00000008
|
||
|
|
||
|
/*
|
||
|
** Pixel store, pixel zoom, pixel transfer, (pixel maps don't cause
|
||
|
** validation), read buffer.
|
||
|
*/
|
||
|
#define __GL_DIRTY_PIXEL 0x00000010
|
||
|
|
||
|
/*
|
||
|
** Light, Light Model, lighting enable, lightx enable, (color material
|
||
|
** validates immediately), (NOT shade model -- it is generic), (color material
|
||
|
** enable validates immediately)
|
||
|
*/
|
||
|
#define __GL_DIRTY_LIGHTING 0x00000020
|
||
|
|
||
|
/*
|
||
|
** Polygon stipple
|
||
|
*/
|
||
|
#define __GL_DIRTY_POLYGON_STIPPLE 0x00000040
|
||
|
|
||
|
/*
|
||
|
** the depth mode has changed. Need to update depth function pointers.
|
||
|
*/
|
||
|
#define __GL_DIRTY_DEPTH 0x00000080
|
||
|
|
||
|
#define __GL_DIRTY_ALL 0x000000ff
|
||
|
|
||
|
/*
|
||
|
** Bit values for changes to material colors
|
||
|
*/
|
||
|
#define __GL_MATERIAL_AMBIENT 0x00000001
|
||
|
#define __GL_MATERIAL_DIFFUSE 0x00000002
|
||
|
#define __GL_MATERIAL_SPECULAR 0x00000004
|
||
|
#define __GL_MATERIAL_EMISSIVE 0x00000008
|
||
|
#define __GL_MATERIAL_SHININESS 0x00000010
|
||
|
#define __GL_MATERIAL_COLORINDEXES 0x00000020
|
||
|
#define __GL_MATERIAL_ALL 0x0000003f
|
||
|
|
||
|
#define __GL_DELAY_VALIDATE(gc) \
|
||
|
assert((gc)->beginMode != __GL_IN_BEGIN); \
|
||
|
(gc)->beginMode = __GL_NEED_VALIDATE; \
|
||
|
(gc)->dirtyMask |= __GL_DIRTY_GENERIC
|
||
|
|
||
|
#define __GL_DELAY_VALIDATE_MASK(gc, mask) \
|
||
|
assert((gc)->beginMode != __GL_IN_BEGIN); \
|
||
|
(gc)->beginMode = __GL_NEED_VALIDATE; \
|
||
|
(gc)->dirtyMask |= (mask)
|
||
|
|
||
|
#define __GL_CLAMP_CI(target, gc, r) \
|
||
|
{ \
|
||
|
if ((r) > (GLfloat)(gc)->frontBuffer.redMax) { \
|
||
|
GLfloat fraction; \
|
||
|
GLint integer; \
|
||
|
\
|
||
|
integer = (GLint) (r); \
|
||
|
fraction = (r) - (GLfloat) integer; \
|
||
|
integer = integer & (GLint)(gc)->frontBuffer.redMax; \
|
||
|
target = (GLfloat) integer + fraction; \
|
||
|
} else if ((r) < 0) { \
|
||
|
GLfloat fraction; \
|
||
|
GLint integer; \
|
||
|
\
|
||
|
integer = (GLint) __GL_FLOORF(r); \
|
||
|
fraction = (r) - (GLfloat) integer; \
|
||
|
integer = integer & (GLint)(gc)->frontBuffer.redMax; \
|
||
|
target = (GLfloat) integer + fraction; \
|
||
|
} else { \
|
||
|
target = r; \
|
||
|
}\
|
||
|
}
|
||
|
|
||
|
#define __GL_CHECK_CLAMP_CI(target, gc, flags, r) \
|
||
|
{ \
|
||
|
if (((r) > (GLfloat)(gc)->frontBuffer.redMax) || \
|
||
|
((r) < 0)) \
|
||
|
flags |= POLYARRAY_CLAMP_COLOR; \
|
||
|
(target) = (r); \
|
||
|
}
|
||
|
|
||
|
#define __GL_COLOR_CLAMP_INDEX_R(value) \
|
||
|
(((ULONG)((CASTINT(value) & 0x80000000)) >> 30) | \
|
||
|
((ULONG)(((CASTINT(gc->redVertexScale) - CASTINT(value)) & 0x80000000)) >> 31)) \
|
||
|
|
||
|
#define __GL_COLOR_CLAMP_INDEX_G(value) \
|
||
|
(((ULONG)((CASTINT(value) & 0x80000000)) >> 30) | \
|
||
|
((ULONG)(((CASTINT(gc->greenVertexScale) - CASTINT(value)) & 0x80000000)) >> 31)) \
|
||
|
|
||
|
#define __GL_COLOR_CLAMP_INDEX_B(value) \
|
||
|
(((ULONG)((CASTINT(value) & 0x80000000)) >> 30) | \
|
||
|
((ULONG)(((CASTINT(gc->blueVertexScale) - CASTINT(value)) & 0x80000000)) >> 31)) \
|
||
|
|
||
|
#define __GL_COLOR_CLAMP_INDEX_A(value) \
|
||
|
(((ULONG)((CASTINT(value) & 0x80000000)) >> 30) | \
|
||
|
((ULONG)(((CASTINT(gc->alphaVertexScale) - CASTINT(value)) & 0x80000000)) >> 31)) \
|
||
|
|
||
|
#define __GL_SCALE_R(target, gc, r) \
|
||
|
(target) = (r) * (gc)->redVertexScale
|
||
|
|
||
|
#define __GL_SCALE_G(target, gc, g) \
|
||
|
(target) = (g) * (gc)->greenVertexScale
|
||
|
|
||
|
#define __GL_SCALE_B(target, gc, b) \
|
||
|
(target) = (b) * (gc)->blueVertexScale
|
||
|
|
||
|
#define __GL_SCALE_A(target, gc, a) \
|
||
|
(target) = (a) * (gc)->alphaVertexScale
|
||
|
|
||
|
#define __GL_COLOR_CHECK_CLAMP_R(value, flags) \
|
||
|
(flags) |= \
|
||
|
((ULONG)(CASTINT(value) & 0x80000000) | \
|
||
|
(ULONG)((CASTINT(gc->redVertexScale) - CASTINT(value)) & 0x80000000))
|
||
|
|
||
|
#define __GL_COLOR_CHECK_CLAMP_G(value, flags) \
|
||
|
(flags) |= \
|
||
|
((ULONG)(CASTINT(value) & 0x80000000) | \
|
||
|
(ULONG)((CASTINT(gc->greenVertexScale) - CASTINT(value)) & 0x80000000))
|
||
|
|
||
|
#define __GL_COLOR_CHECK_CLAMP_B(value, flags) \
|
||
|
(flags) |= \
|
||
|
((ULONG)(CASTINT(value) & 0x80000000) | \
|
||
|
(ULONG)((CASTINT(gc->blueVertexScale) - CASTINT(value)) & 0x80000000))
|
||
|
|
||
|
#define __GL_COLOR_CHECK_CLAMP_A(value, flags) \
|
||
|
(flags) |= \
|
||
|
((ULONG)(CASTINT(value) & 0x80000000) | \
|
||
|
(ULONG)((CASTINT(gc->alphaVertexScale) - CASTINT(value)) & 0x80000000))
|
||
|
|
||
|
#define __GL_SCALE_AND_CHECK_CLAMP_R(target, gc, flags, r) \
|
||
|
{ \
|
||
|
__GL_SCALE_R(target, gc, r); \
|
||
|
__GL_COLOR_CHECK_CLAMP_R(target, flags); \
|
||
|
}
|
||
|
|
||
|
#define __GL_SCALE_AND_CHECK_CLAMP_G(target, gc, flags, g) \
|
||
|
{ \
|
||
|
__GL_SCALE_G(target, gc, g); \
|
||
|
__GL_COLOR_CHECK_CLAMP_G(target, flags); \
|
||
|
}
|
||
|
|
||
|
#define __GL_SCALE_AND_CHECK_CLAMP_B(target, gc, flags, b) \
|
||
|
{ \
|
||
|
__GL_SCALE_B(target, gc, b); \
|
||
|
__GL_COLOR_CHECK_CLAMP_B(target, flags); \
|
||
|
}
|
||
|
|
||
|
#define __GL_SCALE_AND_CHECK_CLAMP_A(target, gc, flags, a) \
|
||
|
{ \
|
||
|
__GL_SCALE_A(target, gc, a); \
|
||
|
__GL_COLOR_CHECK_CLAMP_A(target, flags); \
|
||
|
}
|
||
|
|
||
|
#define __GL_CLAMP_R(target, gc, r) \
|
||
|
{ \
|
||
|
(gc)->redClampTable[0] = (r); \
|
||
|
target = (gc)->redClampTable[__GL_COLOR_CLAMP_INDEX_R((gc)->redClampTable[0])]; \
|
||
|
}
|
||
|
|
||
|
#define __GL_CLAMP_G(target, gc, g) \
|
||
|
{ \
|
||
|
(gc)->greenClampTable[0] = (g); \
|
||
|
target = (gc)->greenClampTable[__GL_COLOR_CLAMP_INDEX_G((gc)->greenClampTable[0])]; \
|
||
|
}
|
||
|
|
||
|
#define __GL_CLAMP_B(target, gc, b) \
|
||
|
{ \
|
||
|
(gc)->blueClampTable[0] = (b); \
|
||
|
target = (gc)->blueClampTable[__GL_COLOR_CLAMP_INDEX_B((gc)->blueClampTable[0])]; \
|
||
|
}
|
||
|
|
||
|
#define __GL_CLAMP_A(target, gc, a) \
|
||
|
{ \
|
||
|
(gc)->alphaClampTable[0] = (a); \
|
||
|
target = (gc)->alphaClampTable[__GL_COLOR_CLAMP_INDEX_A((gc)->alphaClampTable[0])]; \
|
||
|
}
|
||
|
|
||
|
|
||
|
/************************************************************************/
|
||
|
|
||
|
/* Applies to current context */
|
||
|
extern void FASTCALL __glSetError(GLenum code);
|
||
|
#ifdef NT
|
||
|
/* Used when no RC is current */
|
||
|
extern void FASTCALL __glSetErrorEarly(__GLcontext *gc, GLenum code);
|
||
|
#endif // NT
|
||
|
|
||
|
extern void FASTCALL __glFreeEvaluatorState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glFreeDlistState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glFreeMachineState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glFreePixelState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glFreeTextureState(__GLcontext *gc);
|
||
|
|
||
|
extern void FASTCALL __glInitDlistState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glInitEvaluatorState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glInitPixelState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glInitTextureState(__GLcontext *gc);
|
||
|
extern void FASTCALL __glInitTransformState(__GLcontext *gc);
|
||
|
|
||
|
void FASTCALL __glEarlyInitContext(__GLcontext *gc);
|
||
|
void FASTCALL __glContextSetColorScales(__GLcontext *gc);
|
||
|
void FASTCALL __glContextUnsetColorScales(__GLcontext *gc);
|
||
|
void FASTCALL __glSoftResetContext(__GLcontext *gc);
|
||
|
void FASTCALL __glDestroyContext(__GLcontext *gc);
|
||
|
|
||
|
#endif /* __glcontext_h_ */
|