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reactos/dll/opengl/mesa/types.h
Jérôme Gardou 5f2bebf7a5 [OPENGL32][MESA] Downgrade Mesa library to version 2.6 
With this commit, we now use a forked version of MESA which only supports OpenGL 1.1, like the windows implementation does.
It exposes :
  - The same pixel formats
  - The same set of extensions
  - Nothing more
All of this without taking 10% of your build time.
If you need a more modern option, look at the MESA package from Rapps, which is (and must be) maintained outside of this code tree.
CORE-7499
2019-01-19 14:23:54 +01:00

1412 lines
46 KiB
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/* $Id: types.h,v 1.50 1998/02/03 23:45:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 2.6
* Copyright (C) 1995-1997 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* $Log: types.h,v $
* Revision 1.50 1998/02/03 23:45:36 brianp
* added space parameter to clip interpolation functions
*
* Revision 1.49 1998/01/06 02:40:52 brianp
* added DavidB's clipping interpolation optimization
*
* Revision 1.48 1997/12/31 06:10:03 brianp
* added Henk Kok's texture validation optimization (AnyDirty flag)
*
* Revision 1.47 1997/12/06 18:06:50 brianp
* moved several static display list vars into GLcontext
*
* Revision 1.46 1997/10/29 01:33:29 brianp
* added DriverMgrCtx field to gl_context struct
*
* Revision 1.45 1997/10/29 01:29:09 brianp
* added GL_EXT_point_parameters extension from Daniel Barrero
*
* Revision 1.44 1997/10/16 01:59:08 brianp
* added GL_EXT_shared_texture_palette extension
*
* Revision 1.43 1997/10/16 01:13:03 brianp
* removed teximage Dirty, DirtyPalette flags, mondello code
*
* Revision 1.42 1997/09/29 23:27:08 brianp
* added Dirty and DriverData fields for texturing
*
* Revision 1.41 1997/09/27 00:13:44 brianp
* added GL_EXT_paletted_texture extension
*
* Revision 1.40 1997/09/23 00:57:38 brianp
* now using hash table for texture objects
*
* Revision 1.39 1997/09/22 02:33:58 brianp
* display lists now implemented with hash table
*
* Revision 1.38 1997/08/13 01:30:55 brianp
* LightTwoSide is now a GLboolean
*
* Revision 1.37 1997/08/01 02:23:27 brianp
* removed unused gl_list_group struct
*
* Revision 1.36 1997/06/20 02:07:50 brianp
* replaced Current.IntColor with Current.ByteColor
* removed ColorShift field
*
* Revision 1.35 1997/06/20 02:02:37 brianp
* added Color4ubv API pointer
*
* Revision 1.34 1997/05/31 16:57:14 brianp
* added MESA_NO_RASTER env var support
*
* Revision 1.33 1997/05/28 04:06:03 brianp
* implemented projection near/far value stack for Driver.NearFar() function
*
* Revision 1.32 1997/05/26 21:15:13 brianp
* added Red/Green/Blue/AlphaBits to GLvisual struct
*
* Revision 1.31 1997/05/03 00:49:31 brianp
* added SampleFunc, Current, and Dirty to gl_texture_object
*
* Revision 1.30 1997/05/01 02:07:35 brianp
* added shared state variable NextFreeTextureName
*
* Revision 1.29 1997/04/24 01:50:53 brianp
* optimized glColor3f, glColor3fv, glColor4fv
*
* Revision 1.28 1997/04/21 01:20:41 brianp
* added MATRIX_2D_NO_ROT
*
* Revision 1.27 1997/04/20 16:18:15 brianp
* added glOrtho and glFrustum API pointers
*
* Revision 1.26 1997/04/16 23:55:33 brianp
* added optimized glTexCoord2f code
*
* Revision 1.25 1997/04/14 22:18:23 brianp
* added optimized glVertex3fv code
*
* Revision 1.24 1997/04/14 02:03:05 brianp
* added MinMagThresh to texture object
*
* Revision 1.23 1997/04/12 16:54:05 brianp
* new NEW_POLYGON state flag
*
* Revision 1.22 1997/04/12 12:26:39 brianp
* added quad_func and rect_func, removed polygon_func
*
* Revision 1.21 1997/04/07 02:57:13 brianp
* added API.Vertex[23] functions
*
* Revision 1.20 1997/04/01 04:19:37 brianp
* added API pointer for glLoadIdentity
* added matrix type constants and fields
*
* Revision 1.19 1997/03/13 03:05:54 brianp
* changed AlphaRefInt to AlphaRefUbyte
*
* Revision 1.18 1997/03/04 19:17:38 brianp
* added a few members to gl_texture_image struct
*
* Revision 1.17 1997/02/10 19:49:29 brianp
* added glResizeBuffersMESA() code
*
* Revision 1.16 1997/02/09 19:53:43 brianp
* now use TEXTURE_xD enable constants
*
* Revision 1.15 1997/02/09 18:42:41 brianp
* added GL_EXT_texture3D support
*
* Revision 1.14 1997/01/28 22:14:36 brianp
* now there's separate state for CI and RGBA logic op enabled
*
* Revision 1.13 1997/01/21 03:09:41 brianp
* added definition: union node;
*
* Revision 1.12 1997/01/09 21:26:23 brianp
* added RefCount to gl_image struct
*
* Revision 1.11 1996/12/18 20:01:39 brianp
* added material bitmask constants and ColorMaterialBitmask
*
* Revision 1.10 1996/12/11 20:16:30 brianp
* changed GLaccum types to signed
*
* Revision 1.9 1996/11/08 02:21:04 brianp
* added NoRaster flag to context
*
* Revision 1.8 1996/11/07 04:11:34 brianp
* now pass gl_image struct pointer to glTexImage[12]D()
*
* Revision 1.7 1996/11/06 04:21:58 brianp
* added Format to struct gl_image
*
* Revision 1.6 1996/10/11 03:41:12 brianp
* removed OffsetBias field
*
* Revision 1.5 1996/10/11 00:23:04 brianp
* changed Polygon/Line/PointZoffset to GLfloat
*
* Revision 1.4 1996/09/25 03:22:53 brianp
* added NO_DRAW_BIT for glDrawBuffer(GL_NONE)
*
* Revision 1.3 1996/09/19 03:17:56 brianp
* removed Window field from struct gl_frame_buffer
*
* Revision 1.2 1996/09/15 14:20:54 brianp
* added GLframebuffer and GLvisual datatypes
*
* Revision 1.1 1996/09/13 01:38:16 brianp
* Initial revision
*
*/
#ifndef TYPES_H
#define TYPES_H
#include "GL/gl.h"
#include "config.h"
struct HashTable;
/*
* Accumulation buffer data type:
*/
#if ACCUM_BITS==8
typedef GLbyte GLaccum;
#elif ACCUM_BITS==16
typedef GLshort GLaccum;
#else
illegal number of accumulation bits
#endif
/*
* Stencil buffer data type:
*/
#if STENCIL_BITS==8
typedef GLubyte GLstencil;
#else
illegal number of stencil bits
#endif
/*
* Depth buffer data type:
*/
typedef GLint GLdepth;
#include "fixed.h"
typedef struct gl_visual GLvisual;
typedef struct gl_context GLcontext;
typedef struct gl_frame_buffer GLframebuffer;
/*
* Point, line, triangle, quadrilateral and rectangle rasterizer functions:
*/
typedef void (*points_func)( GLcontext *ctx, GLuint first, GLuint last );
typedef void (*line_func)( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv );
typedef void (*triangle_func)( GLcontext *ctx,
GLuint v1, GLuint v2, GLuint v3, GLuint pv );
typedef void (*quad_func)( GLcontext *ctx, GLuint v1, GLuint v2,
GLuint v3, GLuint v4, GLuint pv );
typedef void (*rect_func)( GLcontext *ctx, GLint x, GLint y,
GLint width, GLint height );
/*
* The auxiliary interpolation function for clipping
*/
typedef void (* interp_func)(GLcontext *, GLuint, GLuint, GLfloat, GLuint, GLuint);
/*
* For texture sampling:
*/
struct gl_texture_object;
typedef void (*TextureSampleFunc)( const struct gl_texture_object *tObj,
GLuint n,
const GLfloat s[], const GLfloat t[],
const GLfloat u[], const GLfloat lambda[],
GLubyte r[], GLubyte g[],
GLubyte b[],GLubyte a[] );
/* Generic internal image format */
struct gl_image {
GLint Width;
GLint Height;
GLint Components; /* 1, 2, 3 or 4 */
GLenum Format; /* GL_COLOR_INDEX, GL_RED, GL_RGB, etc */
GLenum Type; /* GL_UNSIGNED_BYTE or GL_FLOAT or GL_BITMAP */
GLvoid *Data;
GLboolean Interleaved; /* If TRUE and Format==GL_RGB, GL_RGBA or
* GL_LUMINANCE_ALPHA then each row is
* stored as RRR..RGGG..GBBB.B instead of
* RGBRGBRGBRGB..RGB. This is only used
* for glDrawPixels.
*/
GLint RefCount;
};
/* Texture image record */
struct gl_texture_image {
GLenum Format; /* GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA,
* GL_INTENSITY, GL_RGB, GL_RGBA, or
* GL_COLOR_INDEX
*/
GLenum IntFormat; /* Internal format as given by the user */
GLuint Border; /* 0 or 1 */
GLuint Width; /* = 2^WidthLog2 + 2*Border */
GLuint Height; /* = 2^HeightLog2 + 2*Border */
GLuint Width2; /* = Width - 2*Border */
GLuint Height2; /* = Height - 2*Border */
GLuint WidthLog2; /* = log2(Width2) */
GLuint HeightLog2; /* = log2(Height2) */
GLuint MaxLog2; /* = MAX(WidthLog2, HeightLog2) */
GLubyte *Data; /* Image data as unsigned bytes */
/* For device driver: */
void *DriverData; /* Arbitrary device driver data */
};
/*
* All gl* API functions in api.c jump through pointers in this struct.
*/
struct gl_api_table {
void (*Accum)( GLcontext *, GLenum, GLfloat );
void (*AlphaFunc)( GLcontext *, GLenum, GLclampf );
GLboolean (*AreTexturesResident)( GLcontext *, GLsizei,
const GLuint *, GLboolean * );
void (*ArrayElement)( GLcontext *, GLint );
void (*Begin)( GLcontext *, GLenum );
void (*BindTexture)( GLcontext *, GLenum, GLuint );
void (*Bitmap)( GLcontext *, GLsizei, GLsizei, GLfloat, GLfloat,
GLfloat, GLfloat, const struct gl_image *bitmap );
void (*BlendFunc)( GLcontext *, GLenum, GLenum );
void (*CallList)( GLcontext *, GLuint list );
void (*CallLists)( GLcontext *, GLsizei, GLenum, const GLvoid * );
void (*Clear)( GLcontext *, GLbitfield );
void (*ClearAccum)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
void (*ClearColor)( GLcontext *, GLclampf, GLclampf, GLclampf, GLclampf );
void (*ClearDepth)( GLcontext *, GLclampd );
void (*ClearIndex)( GLcontext *, GLfloat );
void (*ClearStencil)( GLcontext *, GLint );
void (*ClipPlane)( GLcontext *, GLenum, const GLfloat * );
void (*Color3f)( GLcontext *, GLfloat, GLfloat, GLfloat );
void (*Color3fv)( GLcontext *, const GLfloat * );
void (*Color4f)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
void (*Color4fv)( GLcontext *, const GLfloat * );
void (*Color4ub)( GLcontext *, GLubyte, GLubyte, GLubyte, GLubyte );
void (*Color4ubv)( GLcontext *, const GLubyte * );
void (*ColorMask)( GLcontext *,
GLboolean, GLboolean, GLboolean, GLboolean );
void (*ColorMaterial)( GLcontext *, GLenum, GLenum );
void (*ColorPointer)( GLcontext *, GLint, GLenum, GLsizei, const GLvoid * );
void (*ColorTable)( GLcontext *, GLenum, GLenum, struct gl_image * );
void (*ColorSubTable)( GLcontext *, GLenum, GLsizei, struct gl_image * );
void (*CopyPixels)( GLcontext *, GLint, GLint, GLsizei, GLsizei, GLenum );
void (*CopyTexImage1D)( GLcontext *, GLenum, GLint, GLenum,
GLint, GLint, GLsizei, GLint );
void (*CopyTexImage2D)( GLcontext *, GLenum, GLint, GLenum,
GLint, GLint, GLsizei, GLsizei, GLint );
void (*CopyTexSubImage1D)( GLcontext *, GLenum, GLint, GLint,
GLint, GLint, GLsizei );
void (*CopyTexSubImage2D)( GLcontext *, GLenum, GLint, GLint, GLint,
GLint, GLint, GLsizei, GLsizei );
void (*CullFace)( GLcontext *, GLenum );
void (*DeleteLists)( GLcontext *, GLuint, GLsizei );
void (*DeleteTextures)( GLcontext *, GLsizei, const GLuint *);
void (*DepthFunc)( GLcontext *, GLenum );
void (*DepthMask)( GLcontext *, GLboolean );
void (*DepthRange)( GLcontext *, GLclampd, GLclampd );
void (*Disable)( GLcontext *, GLenum );
void (*DisableClientState)( GLcontext *, GLenum );
void (*DrawArrays)( GLcontext *, GLenum, GLint, GLsizei );
void (*DrawBuffer)( GLcontext *, GLenum );
void (*DrawElements)( GLcontext *, GLenum, GLsizei, GLenum, const GLvoid *);
void (*DrawPixels)( GLcontext *,
GLsizei, GLsizei, GLenum, GLenum, const GLvoid * );
void (*EdgeFlag)( GLcontext *, GLboolean );
void (*EdgeFlagPointer)( GLcontext *, GLsizei, const GLboolean * );
void (*Enable)( GLcontext *, GLenum );
void (*EnableClientState)( GLcontext *, GLenum );
void (*End)( GLcontext * );
void (*EndList)( GLcontext * );
void (*EvalCoord1f)( GLcontext *, GLfloat );
void (*EvalCoord2f)( GLcontext *, GLfloat , GLfloat );
void (*EvalMesh1)( GLcontext *, GLenum, GLint, GLint );
void (*EvalMesh2)( GLcontext *, GLenum, GLint, GLint, GLint, GLint );
void (*EvalPoint1)( GLcontext *, GLint );
void (*EvalPoint2)( GLcontext *, GLint, GLint );
void (*FeedbackBuffer)( GLcontext *, GLsizei, GLenum, GLfloat * );
void (*Finish)( GLcontext * );
void (*Flush)( GLcontext * );
void (*Fogfv)( GLcontext *, GLenum, const GLfloat * );
void (*FrontFace)( GLcontext *, GLenum );
void (*Frustum)( GLcontext *, GLdouble, GLdouble, GLdouble, GLdouble,
GLdouble, GLdouble );
GLuint (*GenLists)( GLcontext *, GLsizei );
void (*GenTextures)( GLcontext *, GLsizei, GLuint * );
void (*GetBooleanv)( GLcontext *, GLenum, GLboolean * );
void (*GetClipPlane)( GLcontext *, GLenum, GLdouble * );
void (*GetColorTable)( GLcontext *, GLenum, GLenum, GLenum, GLvoid *);
void (*GetColorTableParameteriv)( GLcontext *, GLenum, GLenum, GLint *);
void (*GetDoublev)( GLcontext *, GLenum, GLdouble * );
GLenum (*GetError)( GLcontext * );
void (*GetFloatv)( GLcontext *, GLenum, GLfloat * );
void (*GetIntegerv)( GLcontext *, GLenum, GLint * );
const GLubyte* (*GetString)( GLcontext *, GLenum name );
void (*GetLightfv)( GLcontext *, GLenum light, GLenum, GLfloat * );
void (*GetLightiv)( GLcontext *, GLenum light, GLenum, GLint * );
void (*GetMapdv)( GLcontext *, GLenum, GLenum, GLdouble * );
void (*GetMapfv)( GLcontext *, GLenum, GLenum, GLfloat * );
void (*GetMapiv)( GLcontext *, GLenum, GLenum, GLint * );
void (*GetMaterialfv)( GLcontext *, GLenum, GLenum, GLfloat * );
void (*GetMaterialiv)( GLcontext *, GLenum, GLenum, GLint * );
void (*GetPixelMapfv)( GLcontext *, GLenum, GLfloat * );
void (*GetPixelMapuiv)( GLcontext *, GLenum, GLuint * );
void (*GetPixelMapusv)( GLcontext *, GLenum, GLushort * );
void (*GetPointerv)( GLcontext *, GLenum, GLvoid ** );
void (*GetPolygonStipple)( GLcontext *, GLubyte * );
void (*PrioritizeTextures)( GLcontext *, GLsizei, const GLuint *,
const GLclampf * );
void (*GetTexEnvfv)( GLcontext *, GLenum, GLenum, GLfloat * );
void (*GetTexEnviv)( GLcontext *, GLenum, GLenum, GLint * );
void (*GetTexGendv)( GLcontext *, GLenum coord, GLenum, GLdouble * );
void (*GetTexGenfv)( GLcontext *, GLenum coord, GLenum, GLfloat * );
void (*GetTexGeniv)( GLcontext *, GLenum coord, GLenum, GLint * );
void (*GetTexImage)( GLcontext *, GLenum, GLint level, GLenum, GLenum,
GLvoid * );
void (*GetTexLevelParameterfv)( GLcontext *,
GLenum, GLint, GLenum, GLfloat * );
void (*GetTexLevelParameteriv)( GLcontext *,
GLenum, GLint, GLenum, GLint * );
void (*GetTexParameterfv)( GLcontext *, GLenum, GLenum, GLfloat *);
void (*GetTexParameteriv)( GLcontext *, GLenum, GLenum, GLint * );
void (*Hint)( GLcontext *, GLenum, GLenum );
void (*IndexMask)( GLcontext *, GLuint );
void (*Indexf)( GLcontext *, GLfloat c );
void (*Indexi)( GLcontext *, GLint c );
void (*IndexPointer)( GLcontext *, GLenum, GLsizei, const GLvoid * );
void (*InitNames)( GLcontext * );
void (*InterleavedArrays)( GLcontext *, GLenum, GLsizei, const GLvoid * );
GLboolean (*IsEnabled)( GLcontext *, GLenum );
GLboolean (*IsList)( GLcontext *, GLuint );
GLboolean (*IsTexture)( GLcontext *, GLuint );
void (*LightModelfv)( GLcontext *, GLenum, const GLfloat * );
void (*Lightfv)( GLcontext *, GLenum light, GLenum, const GLfloat *, GLint);
void (*LineStipple)( GLcontext *, GLint factor, GLushort );
void (*LineWidth)( GLcontext *, GLfloat );
void (*ListBase)( GLcontext *, GLuint );
void (*LoadIdentity)( GLcontext * );
/* LoadMatrixd implemented with glLoadMatrixf */
void (*LoadMatrixf)( GLcontext *, const GLfloat * );
void (*LoadName)( GLcontext *, GLuint );
void (*LogicOp)( GLcontext *, GLenum );
void (*Map1f)( GLcontext *, GLenum, GLfloat, GLfloat, GLint, GLint,
const GLfloat *, GLboolean );
void (*Map2f)( GLcontext *, GLenum, GLfloat, GLfloat, GLint, GLint,
GLfloat, GLfloat, GLint, GLint, const GLfloat *,
GLboolean );
void (*MapGrid1f)( GLcontext *, GLint, GLfloat, GLfloat );
void (*MapGrid2f)( GLcontext *, GLint, GLfloat, GLfloat,
GLint, GLfloat, GLfloat );
void (*Materialfv)( GLcontext *, GLenum, GLenum, const GLfloat * );
void (*MatrixMode)( GLcontext *, GLenum );
/* MultMatrixd implemented with glMultMatrixf */
void (*MultMatrixf)( GLcontext *, const GLfloat * );
void (*NewList)( GLcontext *, GLuint list, GLenum );
void (*Normal3f)( GLcontext *, GLfloat, GLfloat, GLfloat );
void (*Normal3fv)( GLcontext *, const GLfloat * );
void (*NormalPointer)( GLcontext *, GLenum, GLsizei, const GLvoid * );
void (*Ortho)( GLcontext *, GLdouble, GLdouble, GLdouble, GLdouble,
GLdouble, GLdouble );
void (*PassThrough)( GLcontext *, GLfloat );
void (*PixelMapfv)( GLcontext *, GLenum, GLint, const GLfloat * );
void (*PixelStorei)( GLcontext *, GLenum, GLint );
void (*PixelTransferf)( GLcontext *, GLenum, GLfloat );
void (*PixelZoom)( GLcontext *, GLfloat, GLfloat );
void (*PointSize)( GLcontext *, GLfloat );
void (*PolygonMode)( GLcontext *, GLenum, GLenum );
void (*PolygonOffset)( GLcontext *, GLfloat, GLfloat );
void (*PolygonStipple)( GLcontext *, const GLubyte * );
void (*PopAttrib)( GLcontext * );
void (*PopClientAttrib)( GLcontext * );
void (*PopMatrix)( GLcontext * );
void (*PopName)( GLcontext * );
void (*PushAttrib)( GLcontext *, GLbitfield );
void (*PushClientAttrib)( GLcontext *, GLbitfield );
void (*PushMatrix)( GLcontext * );
void (*PushName)( GLcontext *, GLuint );
void (*RasterPos4f)( GLcontext *,
GLfloat x, GLfloat y, GLfloat z, GLfloat w );
void (*ReadBuffer)( GLcontext *, GLenum );
void (*ReadPixels)( GLcontext *, GLint, GLint, GLsizei, GLsizei, GLenum,
GLenum, GLvoid * );
void (*Rectf)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
GLint (*RenderMode)( GLcontext *, GLenum );
void (*Rotatef)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
void (*Scalef)( GLcontext *, GLfloat, GLfloat, GLfloat );
void (*Scissor)( GLcontext *, GLint, GLint, GLsizei, GLsizei);
void (*SelectBuffer)( GLcontext *, GLsizei, GLuint * );
void (*ShadeModel)( GLcontext *, GLenum );
void (*StencilFunc)( GLcontext *, GLenum, GLint, GLuint );
void (*StencilMask)( GLcontext *, GLuint );
void (*StencilOp)( GLcontext *, GLenum, GLenum, GLenum );
void (*TexCoord2f)( GLcontext *, GLfloat, GLfloat );
void (*TexCoord4f)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
void (*TexCoordPointer)( GLcontext *, GLint, GLenum, GLsizei,
const GLvoid *);
void (*TexEnvfv)( GLcontext *, GLenum, GLenum, const GLfloat * );
void (*TexGenfv)( GLcontext *, GLenum coord, GLenum, const GLfloat * );
void (*TexImage1D)( GLcontext *, GLenum, GLint, GLint, GLsizei,
GLint, GLenum, GLenum, struct gl_image * );
void (*TexImage2D)( GLcontext *, GLenum, GLint, GLint, GLsizei, GLsizei,
GLint, GLenum, GLenum, struct gl_image * );
void (*TexSubImage1D)( GLcontext *, GLenum, GLint, GLint, GLsizei,
GLenum, GLenum, struct gl_image * );
void (*TexSubImage2D)( GLcontext *, GLenum, GLint, GLint, GLint,
GLsizei, GLsizei, GLenum, GLenum,
struct gl_image * );
void (*TexParameterfv)( GLcontext *, GLenum, GLenum, const GLfloat * );
/* Translated implemented by Translatef */
void (*Translatef)( GLcontext *, GLfloat, GLfloat, GLfloat );
void (*Vertex2f)( GLcontext *, GLfloat, GLfloat );
void (*Vertex3f)( GLcontext *, GLfloat, GLfloat, GLfloat );
void (*Vertex4f)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat );
void (*Vertex3fv)( GLcontext *, const GLfloat * );
void (*VertexPointer)( GLcontext *, GLint, GLenum, GLsizei, const GLvoid *);
void (*Viewport)( GLcontext *, GLint, GLint, GLsizei, GLsizei );
};
#include "dd.h"
/*
* Bit flags used for updating material values.
*/
#define FRONT_AMBIENT_BIT 0x1
#define BACK_AMBIENT_BIT 0x2
#define FRONT_DIFFUSE_BIT 0x4
#define BACK_DIFFUSE_BIT 0x8
#define FRONT_SPECULAR_BIT 0x10
#define BACK_SPECULAR_BIT 0x20
#define FRONT_EMISSION_BIT 0x40
#define BACK_EMISSION_BIT 0x80
#define FRONT_SHININESS_BIT 0x100
#define BACK_SHININESS_BIT 0x200
#define FRONT_INDEXES_BIT 0x400
#define BACK_INDEXES_BIT 0x800
#define FRONT_MATERIAL_BITS (FRONT_EMISSION_BIT | FRONT_AMBIENT_BIT | \
FRONT_DIFFUSE_BIT | FRONT_SPECULAR_BIT | \
FRONT_SHININESS_BIT | FRONT_INDEXES_BIT)
#define BACK_MATERIAL_BITS (BACK_EMISSION_BIT | BACK_AMBIENT_BIT | \
BACK_DIFFUSE_BIT | BACK_SPECULAR_BIT | \
BACK_SHININESS_BIT | BACK_INDEXES_BIT)
#define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
/*
* Specular exponent and material shininess lookup table sizes:
*/
#define EXP_TABLE_SIZE 512
#define SHINE_TABLE_SIZE 200
struct gl_light {
GLfloat Ambient[4]; /* ambient color */
GLfloat Diffuse[4]; /* diffuse color */
GLfloat Specular[4]; /* specular color */
GLfloat Position[4]; /* position in eye coordinates */
GLfloat Direction[4]; /* spotlight dir in eye coordinates */
GLfloat SpotExponent;
GLfloat SpotCutoff; /* in degress */
GLfloat CosCutoff; /* = cos(SpotCutoff) */
GLfloat ConstantAttenuation;
GLfloat LinearAttenuation;
GLfloat QuadraticAttenuation;
GLboolean Enabled; /* On/off flag */
struct gl_light *NextEnabled; /* Ptr to next enabled light or NULL */
/* Derived fields */
GLfloat VP_inf_norm[3]; /* Norm direction to infinite light */
GLfloat h_inf_norm[3]; /* Norm( VP_inf_norm + <0,0,1> ) */
GLfloat NormDirection[3]; /* normalized spotlight direction */
GLfloat SpotExpTable[EXP_TABLE_SIZE][2]; /* to replace a pow() call */
GLfloat MatAmbient[2][3]; /* material ambient * light ambient */
GLfloat MatDiffuse[2][3]; /* material diffuse * light diffuse */
GLfloat MatSpecular[2][3]; /* material spec * light specular */
GLfloat dli; /* CI diffuse light intensity */
GLfloat sli; /* CI specular light intensity */
};
struct gl_lightmodel {
GLfloat Ambient[4]; /* ambient color */
GLboolean LocalViewer; /* Local (or infinite) view point? */
GLboolean TwoSide; /* Two (or one) sided lighting? */
};
struct gl_material {
GLfloat Ambient[4];
GLfloat Diffuse[4];
GLfloat Specular[4];
GLfloat Emission[4];
GLfloat Shininess;
GLfloat AmbientIndex; /* for color index lighting */
GLfloat DiffuseIndex; /* for color index lighting */
GLfloat SpecularIndex; /* for color index lighting */
GLfloat ShineTable[SHINE_TABLE_SIZE]; /* to replace a pow() call */
};
/*
* Attribute structures:
* We define a struct for each attribute group to make pushing and
* popping attributes easy. Also it's a good organization.
*/
struct gl_accum_attrib {
GLfloat ClearColor[4]; /* Accumulation buffer clear color */
};
struct gl_colorbuffer_attrib {
GLuint ClearIndex; /* Index to use for glClear */
GLfloat ClearColor[4]; /* Color to use for glClear */
GLuint IndexMask; /* Color index write mask */
GLuint ColorMask; /* bit 3=red,2=green,1=blue,0=alpha*/
GLboolean SWmasking; /* Do color/CI masking in software? */
GLenum DrawBuffer; /* Which buffer to draw into */
/* alpha testing */
GLboolean AlphaEnabled; /* Alpha test enabled flag */
GLenum AlphaFunc; /* Alpha test function */
GLfloat AlphaRef; /* Alpha reference value */
GLubyte AlphaRefUbyte; /* AlphaRef scaled to an integer */
/* blending */
GLboolean BlendEnabled; /* Blending enabled flag */
GLenum BlendSrc; /* Blending source operator */
GLenum BlendDst; /* Blending destination operator */
/* logic op */
GLenum LogicOp; /* Logic operator */
GLboolean IndexLogicOpEnabled; /* Color index logic op enabled flag */
GLboolean ColorLogicOpEnabled; /* RGBA logic op enabled flag */
GLboolean SWLogicOpEnabled; /* Do logic ops in software? */
GLboolean DitherFlag; /* Dither enable flag */
};
struct gl_current_attrib {
GLubyte ByteColor[4]; /* Current RGBA color */
GLuint Index; /* Current color index */
GLfloat Normal[3]; /* Current normal vector */
GLfloat TexCoord[4]; /* Current texture coordinate */
GLfloat RasterPos[4]; /* Current raster position */
GLfloat RasterDistance; /* Current raster distance */
GLfloat RasterColor[4]; /* Current raster color */
GLuint RasterIndex; /* Current raster index */
GLfloat RasterTexCoord[4]; /* Current raster texture coord */
GLboolean RasterPosValid; /* Raster position valid flag */
GLboolean EdgeFlag; /* Current edge flag */
};
struct gl_depthbuffer_attrib {
GLenum Func; /* Function for depth buffer compare */
GLfloat Clear; /* Value to clear depth buffer to */
GLboolean Test; /* Depth buffering enabled flag */
GLboolean Mask; /* Depth buffer writable? */
};
struct gl_enable_attrib {
GLboolean AlphaTest;
GLboolean AutoNormal;
GLboolean Blend;
GLboolean ClipPlane[MAX_CLIP_PLANES];
GLboolean ColorMaterial;
GLboolean CullFace;
GLboolean DepthTest;
GLboolean Dither;
GLboolean Fog;
GLboolean Light[MAX_LIGHTS];
GLboolean Lighting;
GLboolean LineSmooth;
GLboolean LineStipple;
GLboolean IndexLogicOp;
GLboolean ColorLogicOp;
GLboolean Map1Color4;
GLboolean Map1Index;
GLboolean Map1Normal;
GLboolean Map1TextureCoord1;
GLboolean Map1TextureCoord2;
GLboolean Map1TextureCoord3;
GLboolean Map1TextureCoord4;
GLboolean Map1Vertex3;
GLboolean Map1Vertex4;
GLboolean Map2Color4;
GLboolean Map2Index;
GLboolean Map2Normal;
GLboolean Map2TextureCoord1;
GLboolean Map2TextureCoord2;
GLboolean Map2TextureCoord3;
GLboolean Map2TextureCoord4;
GLboolean Map2Vertex3;
GLboolean Map2Vertex4;
GLboolean Normalize;
GLboolean PointSmooth;
GLboolean PolygonOffsetPoint;
GLboolean PolygonOffsetLine;
GLboolean PolygonOffsetFill;
GLboolean PolygonSmooth;
GLboolean PolygonStipple;
GLboolean Scissor;
GLboolean Stencil;
GLuint Texture;
GLuint TexGen;
};
struct gl_eval_attrib {
/* Enable bits */
GLboolean Map1Color4;
GLboolean Map1Index;
GLboolean Map1Normal;
GLboolean Map1TextureCoord1;
GLboolean Map1TextureCoord2;
GLboolean Map1TextureCoord3;
GLboolean Map1TextureCoord4;
GLboolean Map1Vertex3;
GLboolean Map1Vertex4;
GLboolean Map2Color4;
GLboolean Map2Index;
GLboolean Map2Normal;
GLboolean Map2TextureCoord1;
GLboolean Map2TextureCoord2;
GLboolean Map2TextureCoord3;
GLboolean Map2TextureCoord4;
GLboolean Map2Vertex3;
GLboolean Map2Vertex4;
GLboolean AutoNormal;
/* Map Grid endpoints and divisions */
GLuint MapGrid1un;
GLfloat MapGrid1u1, MapGrid1u2;
GLuint MapGrid2un, MapGrid2vn;
GLfloat MapGrid2u1, MapGrid2u2;
GLfloat MapGrid2v1, MapGrid2v2;
};
struct gl_fog_attrib {
GLboolean Enabled; /* Fog enabled flag */
GLfloat Color[4]; /* Fog color */
GLfloat Density; /* Density >= 0.0 */
GLfloat Start; /* Start distance in eye coords */
GLfloat End; /* End distance in eye coords */
GLfloat Index; /* Fog index */
GLenum Mode; /* Fog mode */
};
struct gl_hint_attrib {
/* always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE */
GLenum PerspectiveCorrection;
GLenum PointSmooth;
GLenum LineSmooth;
GLenum PolygonSmooth;
GLenum Fog;
};
struct gl_light_attrib {
struct gl_light Light[MAX_LIGHTS]; /* Array of lights */
struct gl_lightmodel Model; /* Lighting model */
struct gl_material Material[2]; /* Material 0=front, 1=back */
GLboolean Enabled; /* Lighting enabled flag */
GLenum ShadeModel; /* GL_FLAT or GL_SMOOTH */
GLenum ColorMaterialFace; /* GL_FRONT, BACK or FRONT_AND_BACK */
GLenum ColorMaterialMode; /* GL_AMBIENT, GL_DIFFUSE, etc */
GLuint ColorMaterialBitmask; /* bitmask formed from Face and Mode */
GLboolean ColorMaterialEnabled;
/* Derived for optimizations: */
struct gl_light *FirstEnabled; /* Ptr to 1st enabled light */
GLboolean Fast; /* Use fast shader? */
GLfloat BaseColor[2][4];
};
struct gl_line_attrib {
GLboolean SmoothFlag; /* GL_LINE_SMOOTH enabled? */
GLboolean StippleFlag; /* GL_LINE_STIPPLE enabled? */
GLushort StipplePattern; /* Stipple pattern */
GLint StippleFactor; /* Stipple repeat factor */
GLfloat Width; /* Line width */
};
struct gl_list_attrib {
GLuint ListBase;
};
struct gl_pixel_attrib {
GLenum ReadBuffer;
GLfloat RedBias, RedScale; /* Pixel xfer bias & scale values */
GLfloat GreenBias, GreenScale;
GLfloat BlueBias, BlueScale;
GLfloat AlphaBias, AlphaScale;
GLfloat DepthBias, DepthScale;
GLint IndexShift;
GLint IndexOffset;
GLboolean MapColorFlag;
GLboolean MapStencilFlag;
GLfloat ZoomX; /* Pixel zoom X factor */
GLfloat ZoomY; /* Pixel zoom Y factor */
/* TODO: Do the following belong here??? */
GLint MapStoSsize; /* Size of each pixel map */
GLint MapItoIsize;
GLint MapItoRsize;
GLint MapItoGsize;
GLint MapItoBsize;
GLint MapItoAsize;
GLint MapRtoRsize;
GLint MapGtoGsize;
GLint MapBtoBsize;
GLint MapAtoAsize;
GLint MapStoS[MAX_PIXEL_MAP_TABLE]; /* Pixel map tables */
GLint MapItoI[MAX_PIXEL_MAP_TABLE];
GLfloat MapItoR[MAX_PIXEL_MAP_TABLE];
GLfloat MapItoG[MAX_PIXEL_MAP_TABLE];
GLfloat MapItoB[MAX_PIXEL_MAP_TABLE];
GLfloat MapItoA[MAX_PIXEL_MAP_TABLE];
GLfloat MapRtoR[MAX_PIXEL_MAP_TABLE];
GLfloat MapGtoG[MAX_PIXEL_MAP_TABLE];
GLfloat MapBtoB[MAX_PIXEL_MAP_TABLE];
GLfloat MapAtoA[MAX_PIXEL_MAP_TABLE];
};
struct gl_point_attrib {
GLboolean SmoothFlag; /* True if GL_POINT_SMOOTH is enabled */
GLfloat Size; /* Point size */
};
struct gl_polygon_attrib {
GLenum FrontFace; /* Either GL_CW or GL_CCW */
GLenum FrontMode; /* Either GL_POINT, GL_LINE or GL_FILL */
GLenum BackMode; /* Either GL_POINT, GL_LINE or GL_FILL */
GLboolean Unfilled; /* True if back or front mode is not GL_FILL */
GLboolean CullFlag; /* Culling on/off flag */
GLenum CullFaceMode; /* Culling mode GL_FRONT or GL_BACK */
GLuint CullBits; /* Used for cull testing */
GLboolean SmoothFlag; /* True if GL_POLYGON_SMOOTH is enabled */
GLboolean StippleFlag; /* True if GL_POLYGON_STIPPLE is enabled */
GLfloat OffsetFactor; /* Polygon offset factor */
GLfloat OffsetUnits; /* Polygon offset units */
GLboolean OffsetPoint; /* Offset in GL_POINT mode? */
GLboolean OffsetLine; /* Offset in GL_LINE mode? */
GLboolean OffsetFill; /* Offset in GL_FILL mode? */
GLboolean OffsetAny; /* OR of OffsetPoint, OffsetLine, OffsetFill */
};
struct gl_scissor_attrib {
GLboolean Enabled; /* Scissor test enabled? */
GLint X, Y; /* Lower left corner of box */
GLsizei Width, Height; /* Size of box */
};
struct gl_stencil_attrib {
GLboolean Enabled; /* Enabled flag */
GLenum Function; /* Stencil function */
GLenum FailFunc; /* Fail function */
GLenum ZPassFunc; /* Depth buffer pass function */
GLenum ZFailFunc; /* Depth buffer fail function */
GLstencil Ref; /* Reference value */
GLstencil ValueMask; /* Value mask */
GLstencil Clear; /* Clear value */
GLstencil WriteMask; /* Write mask */
};
#define Q_BIT 1
#define R_BIT 2
#define S_BIT 4
#define T_BIT 8
#define TEXTURE_1D 1
#define TEXTURE_2D 2
struct gl_texture_attrib {
GLuint Enabled; /* Bitwise-OR of TEXTURE_XD values */
GLenum EnvMode; /* GL_MODULATE, GL_DECAL, GL_BLEND */
GLfloat EnvColor[4];
GLuint TexGenEnabled; /* Bitwise-OR of [QRST]_BIT values */
GLenum GenModeS; /* Tex coord generation mode, either */
GLenum GenModeT; /* GL_OBJECT_LINEAR, or */
GLenum GenModeR; /* GL_EYE_LINEAR, or */
GLenum GenModeQ; /* GL_SPHERE_MAP */
GLfloat ObjectPlaneS[4];
GLfloat ObjectPlaneT[4];
GLfloat ObjectPlaneR[4];
GLfloat ObjectPlaneQ[4];
GLfloat EyePlaneS[4];
GLfloat EyePlaneT[4];
GLfloat EyePlaneR[4];
GLfloat EyePlaneQ[4];
struct gl_texture_object *Current1D;
struct gl_texture_object *Current2D;
struct gl_texture_object *Current; /* = Current1D, 2D or NULL */
#ifdef GL_VERSION_1_1
struct gl_texture_object *Proxy1D;
struct gl_texture_object *Proxy2D;
#endif
GLboolean AnyDirty;
};
struct gl_transform_attrib {
GLenum MatrixMode; /* Matrix mode */
GLfloat ClipEquation[MAX_CLIP_PLANES][4];
GLboolean ClipEnabled[MAX_CLIP_PLANES];
GLboolean AnyClip; /* Any ClipEnabled[] true? */
GLboolean Normalize; /* Normalize all normals? */
};
struct gl_viewport_attrib {
GLint X, Y; /* position */
GLsizei Width, Height; /* size */
GLfloat Near, Far; /* Depth buffer range */
GLfloat Sx, Sy, Sz; /* NDC to WinCoord scaling */
GLfloat Tx, Ty, Tz; /* NDC to WinCoord translation */
};
/* For the attribute stack: */
struct gl_attrib_node {
GLbitfield kind;
void *data;
struct gl_attrib_node *next;
};
/*
* Client pixel packing/unpacking attributes
*/
struct gl_pixelstore_attrib {
GLint Alignment;
GLint RowLength;
GLint SkipPixels;
GLint SkipRows;
GLboolean SwapBytes;
GLboolean LsbFirst;
};
/*
* Client vertex array attributes
*/
struct gl_array_attrib {
GLint VertexSize;
GLenum VertexType;
GLsizei VertexStride; /* user-specified stride */
GLsizei VertexStrideB; /* actual stride in bytes */
void *VertexPtr;
GLboolean VertexEnabled;
GLenum NormalType;
GLsizei NormalStride; /* user-specified stride */
GLsizei NormalStrideB; /* actual stride in bytes */
void *NormalPtr;
GLboolean NormalEnabled;
GLint ColorSize;
GLenum ColorType;
GLsizei ColorStride; /* user-specified stride */
GLsizei ColorStrideB; /* actual stride in bytes */
void *ColorPtr;
GLboolean ColorEnabled;
GLenum IndexType;
GLsizei IndexStride; /* user-specified stride */
GLsizei IndexStrideB; /* actual stride in bytes */
void *IndexPtr;
GLboolean IndexEnabled;
GLint TexCoordSize;
GLenum TexCoordType;
GLsizei TexCoordStride; /* user-specified stride */
GLsizei TexCoordStrideB; /* actual stride in bytes */
void *TexCoordPtr;
GLboolean TexCoordEnabled;
GLsizei EdgeFlagStride; /* user-specified stride */
GLsizei EdgeFlagStrideB; /* actual stride in bytes */
GLboolean *EdgeFlagPtr;
GLboolean EdgeFlagEnabled;
};
struct gl_feedback {
GLenum Type;
GLuint Mask;
GLfloat *Buffer;
GLuint BufferSize;
GLuint Count;
};
struct gl_selection {
GLuint *Buffer;
GLuint BufferSize; /* size of SelectBuffer */
GLuint BufferCount; /* number of values in SelectBuffer */
GLuint Hits; /* number of records in SelectBuffer */
GLuint NameStackDepth;
GLuint NameStack[MAX_NAME_STACK_DEPTH];
GLboolean HitFlag;
GLfloat HitMinZ, HitMaxZ;
};
/*
* 1-D Evaluator control points
*/
struct gl_1d_map {
GLuint Order; /* Number of control points */
GLfloat u1, u2;
GLfloat *Points; /* Points to contiguous control points */
GLboolean Retain; /* Reference counter */
};
/*
* 2-D Evaluator control points
*/
struct gl_2d_map {
GLuint Uorder; /* Number of control points in U dimension */
GLuint Vorder; /* Number of control points in V dimension */
GLfloat u1, u2;
GLfloat v1, v2;
GLfloat *Points; /* Points to contiguous control points */
GLboolean Retain; /* Reference counter */
};
/*
* All evalutator control points
*/
struct gl_evaluators {
/* 1-D maps */
struct gl_1d_map Map1Vertex3;
struct gl_1d_map Map1Vertex4;
struct gl_1d_map Map1Index;
struct gl_1d_map Map1Color4;
struct gl_1d_map Map1Normal;
struct gl_1d_map Map1Texture1;
struct gl_1d_map Map1Texture2;
struct gl_1d_map Map1Texture3;
struct gl_1d_map Map1Texture4;
/* 2-D maps */
struct gl_2d_map Map2Vertex3;
struct gl_2d_map Map2Vertex4;
struct gl_2d_map Map2Index;
struct gl_2d_map Map2Color4;
struct gl_2d_map Map2Normal;
struct gl_2d_map Map2Texture1;
struct gl_2d_map Map2Texture2;
struct gl_2d_map Map2Texture3;
struct gl_2d_map Map2Texture4;
};
/* Texture object record */
struct gl_texture_object {
GLint RefCount; /* reference count */
GLuint Name; /* an unsigned integer */
GLuint Dimensions; /* 1 or 2 or 3 */
GLfloat Priority; /* in [0,1] */
GLint BorderColor[4]; /* as integers in [0,255] */
GLenum WrapS; /* GL_CLAMP or GL_REPEAT */
GLenum WrapT; /* GL_CLAMP or GL_REPEAT */
GLenum WrapR; /* GL_CLAMP or GL_REPEAT */
GLenum MinFilter; /* minification filter */
GLenum MagFilter; /* magnification filter */
GLfloat MinMagThresh; /* min/mag threshold */
struct gl_texture_image *Image[MAX_TEXTURE_LEVELS];
/* GL_EXT_paletted_texture */
GLubyte Palette[MAX_TEXTURE_PALETTE_SIZE*4];
GLuint PaletteSize;
GLenum PaletteIntFormat;
GLenum PaletteFormat;
/* For device driver: */
GLboolean Dirty; /* Set when any texobj state changes */
void *DriverData; /* Arbitrary device driver data */
GLboolean Complete; /* Complete set of images? */
TextureSampleFunc SampleFunc;
struct gl_texture_object *Next; /* Next in linked list */
};
/*
* State which can be shared by multiple contexts:
*/
struct gl_shared_state {
GLint RefCount; /* Reference count */
struct HashTable *DisplayList; /* Display lists hash table */
struct HashTable *TexObjects; /* Texture objects hash table */
struct gl_texture_object *TexObjectList;/* Linked list of texture objects */
struct gl_texture_object *Default1D; /* Default texture objects */
struct gl_texture_object *Default2D;
};
/*
* Describes the color, depth, stencil and accum buffer parameters.
*/
struct gl_visual {
GLboolean RGBAflag; /* Is frame buffer in RGBA mode, not CI? */
GLboolean DBflag; /* Is color buffer double buffered? */
GLfloat RedScale; /* These values are used to scale color */
GLfloat GreenScale; /* components from the range [0,1] to */
GLfloat BlueScale; /* integer values. It should be the case */
GLfloat AlphaScale; /* that scale = 2^bits - 1 where bits is */
/* the number of bits for the component */
/* in the frame buffer. */
GLboolean EightBitColor;/* TRUE if all the above scales are 255.0 */
GLfloat InvRedScale; /* = 1 / RedScale */
GLfloat InvGreenScale; /* = 1 / GreenScale */
GLfloat InvBlueScale; /* = 1 / BlueScale */
GLfloat InvAlphaScale; /* = 1 / AlphaScale */
GLint RedBits; /* Bits per color component */
GLint GreenBits;
GLint BlueBits;
GLint AlphaBits;
GLint IndexBits; /* Bits/pixel if in color index mode */
GLint AccumBits; /* Number of bits per color channel, or 0 */
GLint DepthBits; /* Number of bits in depth buffer, or 0 */
GLint StencilBits; /* Number of bits in stencil buffer, or 0 */
/* Software alpha planes: */
GLboolean FrontAlphaEnabled;
GLboolean BackAlphaEnabled;
};
/*
* A "frame buffer" is a color buffer and its optional ancillary buffers:
* depth, accum, stencil, and software-simulated alpha buffers.
*/
struct gl_frame_buffer {
GLvisual *Visual; /* The corresponding visual */
GLint Width; /* Width of frame buffer in pixels */
GLint Height; /* Height of frame buffer in pixels */
GLdepth *Depth; /* array [Width*Height] of GLdepth values */
/* Stencil buffer */
GLstencil *Stencil; /* array [Width*Height] of GLstencil values */
/* Accumulation buffer */
GLaccum *Accum; /* array [4*Width*Height] of GLaccum values */
/* Software alpha planes: */
GLubyte *FrontAlpha; /* array [Width*Height] of GLubyte */
GLubyte *BackAlpha; /* array [Width*Height] of GLubyte */
GLubyte *Alpha; /* Points to front or back alpha buffer */
/* Drawing bounds: intersection of window size and scissor box */
GLint Xmin, Xmax, Ymin, Ymax;
};
/*
* Bitmasks to indicate what auxillary information must be interpolated
* when clipping (ClipMask).
*/
#define CLIP_FCOLOR_BIT 0x01
#define CLIP_BCOLOR_BIT 0x02
#define CLIP_FINDEX_BIT 0x04
#define CLIP_BINDEX_BIT 0x08
#define CLIP_TEXTURE_BIT 0x10
/*
* Bitmasks to indicate which rasterization options are enabled (RasterMask)
*/
#define ALPHATEST_BIT 0x001 /* Alpha-test pixels */
#define BLEND_BIT 0x002 /* Blend pixels */
#define DEPTH_BIT 0x004 /* Depth-test pixels */
#define FOG_BIT 0x008 /* Per-pixel fog */
#define LOGIC_OP_BIT 0x010 /* Apply logic op in software */
#define SCISSOR_BIT 0x020 /* Scissor pixels */
#define STENCIL_BIT 0x040 /* Stencil pixels */
#define MASKING_BIT 0x080 /* Do glColorMask() or glIndexMask() */
#define ALPHABUF_BIT 0x100 /* Using software alpha buffer */
#define WINCLIP_BIT 0x200 /* Clip pixels/primitives to window */
#define FRONT_AND_BACK_BIT 0x400 /* Write to front and back buffers */
#define NO_DRAW_BIT 0x800 /* Don't write any pixels */
/*
* Bits to indicate what state has to be updated (NewState)
*/
#define NEW_LIGHTING 0x1
#define NEW_RASTER_OPS 0x2
#define NEW_TEXTURING 0x4
#define NEW_POLYGON 0x8
#define NEW_ALL 0xf
/*
* Different kinds of 4x4 transformation matrices:
*/
#define MATRIX_GENERAL 0 /* general 4x4 matrix */
#define MATRIX_IDENTITY 1 /* identity matrix */
#define MATRIX_ORTHO 2 /* orthographic projection matrix */
#define MATRIX_PERSPECTIVE 3 /* perspective projection matrix */
#define MATRIX_2D 4 /* 2-D transformation */
#define MATRIX_2D_NO_ROT 5 /* 2-D scale & translate only */
#define MATRIX_3D 6 /* 3-D transformation */
/*
* Forward declaration of display list datatypes:
*/
union node;
typedef union node Node;
/*
* The library context:
*/
struct gl_context {
/* State possibly shared with other contexts in the address space */
struct gl_shared_state *Shared;
/* API function pointer tables */
struct gl_api_table API; /* For api.c */
struct gl_api_table Save; /* Display list save funcs */
struct gl_api_table Exec; /* Execute funcs */
GLvisual *Visual;
GLframebuffer *Buffer;
/* Driver function pointer table */
struct dd_function_table Driver;
void *DriverCtx; /* Points to device driver context/state */
void *DriverMgrCtx; /* Points to device driver manager (optional)*/
/* Modelview matrix and stack */
GLboolean NewModelViewMatrix;
GLuint ModelViewMatrixType; /* = one of MATRIX_* values */
GLfloat ModelViewMatrix[16];
GLfloat ModelViewInv[16]; /* Inverse of ModelViewMatrix */
GLuint ModelViewStackDepth;
GLfloat ModelViewStack[MAX_MODELVIEW_STACK_DEPTH][16];
/* Projection matrix and stack */
GLboolean NewProjectionMatrix;
GLuint ProjectionMatrixType; /* = one of MATRIX_* values */
GLfloat ProjectionMatrix[16];
GLuint ProjectionStackDepth;
GLfloat ProjectionStack[MAX_PROJECTION_STACK_DEPTH][16];
GLfloat NearFarStack[MAX_PROJECTION_STACK_DEPTH][2];
/* Texture matrix and stack */
GLboolean NewTextureMatrix;
GLuint TextureMatrixType; /* = one of MATRIX_* values */
GLfloat TextureMatrix[16];
GLuint TextureStackDepth;
GLfloat TextureStack[MAX_TEXTURE_STACK_DEPTH][16];
/* Display lists */
GLuint CallDepth; /* Current recursion calling depth */
GLboolean ExecuteFlag; /* Execute GL commands? */
GLboolean CompileFlag; /* Compile GL commands into display list? */
Node *CurrentListPtr; /* Head of list being compiled */
GLuint CurrentListNum; /* Number of the list being compiled */
Node *CurrentBlock; /* Pointer to current block of nodes */
GLuint CurrentPos; /* Index into current block of nodes */
/* Renderer attribute stack */
GLuint AttribStackDepth;
struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH];
/* Renderer attribute groups */
struct gl_accum_attrib Accum;
struct gl_colorbuffer_attrib Color;
struct gl_current_attrib Current;
struct gl_depthbuffer_attrib Depth;
struct gl_eval_attrib Eval;
struct gl_fog_attrib Fog;
struct gl_hint_attrib Hint;
struct gl_light_attrib Light;
struct gl_line_attrib Line;
struct gl_list_attrib List;
struct gl_pixel_attrib Pixel;
struct gl_point_attrib Point;
struct gl_polygon_attrib Polygon;
GLuint PolygonStipple[32];
struct gl_scissor_attrib Scissor;
struct gl_stencil_attrib Stencil;
struct gl_texture_attrib Texture;
struct gl_transform_attrib Transform;
struct gl_viewport_attrib Viewport;
/* Client attribute stack */
GLuint ClientAttribStackDepth;
struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH];
/* Client attribute groups */
struct gl_array_attrib Array; /* Vertex arrays */
struct gl_pixelstore_attrib Pack; /* Pixel packing */
struct gl_pixelstore_attrib Unpack; /* Pixel unpacking */
struct gl_evaluators EvalMap; /* All evaluators */
struct gl_feedback Feedback; /* Feedback */
struct gl_selection Select; /* Selection */
GLenum ErrorValue; /* Last error code */
GLboolean DirectContext; /* Important for real GLX */
/* Miscellaneous */
GLuint NewState; /* bitwise OR of NEW_* flags */
GLenum RenderMode; /* either GL_RENDER, GL_SELECT, GL_FEEDBACK */
GLenum Primitive; /* glBegin primitive or GL_BITMAP */
GLuint StippleCounter; /* Line stipple counter */
GLuint ClipMask; /* OR of CLIP_* values from above */
interp_func ClipInterpAuxFunc; /* The auxiliary interpolation function */
GLuint RasterMask; /* OR of rasterization flags */
GLboolean LightTwoSide; /* Compute two-sided lighting? */
GLboolean DirectTriangles;/* Directly call (*ctx->TriangleFunc) ? */
GLfloat PolygonZoffset; /* Z offset for GL_FILL polygons */
GLfloat LineZoffset; /* Z offset for GL_LINE polygons */
GLfloat PointZoffset; /* Z offset for GL_POINT polygons */
GLboolean NeedNormals; /* Are vertex normal vectors needed? */
GLboolean FastDrawPixels;/* Use optimized glDrawPixels? */
GLboolean MutablePixels; /* Can rasterization change pixel's color? */
GLboolean MonoPixels; /* Are all pixels likely to be same color? */
/* Current Primitive functions */
points_func PointsFunc;
line_func LineFunc;
triangle_func TriangleFunc;
quad_func QuadFunc;
rect_func RectFunc;
/* The vertex buffer being used by this context */
struct vertex_buffer* VB;
/* The pixel buffer being used by this context */
struct pixel_buffer* PB;
#ifdef PROFILE
/* Performance measurements */
GLuint BeginEndCount; /* number of glBegin/glEnd pairs */
GLdouble BeginEndTime; /* seconds spent between glBegin/glEnd */
GLuint VertexCount; /* number of vertices processed */
GLdouble VertexTime; /* total time in seconds */
GLuint PointCount; /* number of points rendered */
GLdouble PointTime; /* total time in seconds */
GLuint LineCount; /* number of lines rendered */
GLdouble LineTime; /* total time in seconds */
GLuint PolygonCount; /* number of polygons rendered */
GLdouble PolygonTime; /* total time in seconds */
GLuint ClearCount; /* number of glClear calls */
GLdouble ClearTime; /* seconds spent in glClear */
GLuint SwapCount; /* number of swap-buffer calls */
GLdouble SwapTime; /* seconds spent in swap-buffers */
#endif
/* For debugging/development only */
GLboolean NoRaster;
/* Dither disable via MESA_NO_DITHER env var */
GLboolean NoDither;
};
#endif
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