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#ifndef _pixel_h_
#define _pixel_h_
/*
** Copyright 1991,1992, Silicon Graphics, Inc.** All Rights Reserved.**** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;** the contents of this file may not be disclosed to third parties, copied or** duplicated in any form, in whole or in part, without the prior written** permission of Silicon Graphics, Inc.**** RESTRICTED RIGHTS LEGEND:** Use, duplication or disclosure by the Government is subject to restrictions** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data** and Computer Software clause at DFARS 252.227-7013, and/or in similar or** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -** rights reserved under the Copyright Laws of the United States.*/#include "types.h"
#include "vertex.h"
#include "constant.h"
/* Not much for elegance, but it works. */#define __GL_N_PIXEL_MAPS (GL_PIXEL_MAP_A_TO_A - GL_PIXEL_MAP_I_TO_I + 1)
#define __GL_REMAP_PM(x) ((x) - GL_PIXEL_MAP_I_TO_I)
#define __GL_PIXEL_MAP_I_TO_I __GL_REMAP_PM(GL_PIXEL_MAP_I_TO_I)
#define __GL_PIXEL_MAP_S_TO_S __GL_REMAP_PM(GL_PIXEL_MAP_S_TO_S)
#define __GL_PIXEL_MAP_I_TO_R __GL_REMAP_PM(GL_PIXEL_MAP_I_TO_R)
#define __GL_PIXEL_MAP_I_TO_G __GL_REMAP_PM(GL_PIXEL_MAP_I_TO_G)
#define __GL_PIXEL_MAP_I_TO_B __GL_REMAP_PM(GL_PIXEL_MAP_I_TO_B)
#define __GL_PIXEL_MAP_I_TO_A __GL_REMAP_PM(GL_PIXEL_MAP_I_TO_A)
#define __GL_PIXEL_MAP_R_TO_R __GL_REMAP_PM(GL_PIXEL_MAP_R_TO_R)
#define __GL_PIXEL_MAP_G_TO_G __GL_REMAP_PM(GL_PIXEL_MAP_G_TO_G)
#define __GL_PIXEL_MAP_B_TO_B __GL_REMAP_PM(GL_PIXEL_MAP_B_TO_B)
#define __GL_PIXEL_MAP_A_TO_A __GL_REMAP_PM(GL_PIXEL_MAP_A_TO_A)
/*
** Pixel type not exlicitly defined by the spec, but implictly suggested.*/#define __GL_RED_ALPHA 1
#ifdef GL_EXT_paletted_texture
// Pixel type needed to distinguish paletted texture data from
// normal color index
#define __GL_PALETTE_INDEX 2
#endif
typedef struct __GLpixelMapHeadRec { GLint size; GLint tableId; union { GLint *mapI; /* access index (integral) entries */ __GLfloat *mapF; /* access component (float) entries */ } base;} __GLpixelMapHead;
//!!! Don't change this structure without changing MCDPIXELTRANSFER !!!
typedef struct __GLpixelTransferModeRec { __GLfloat r_scale, g_scale, b_scale, a_scale, d_scale; __GLfloat r_bias, g_bias, b_bias, a_bias, d_bias; __GLfloat zoomX; __GLfloat zoomY;
GLint indexShift; GLint indexOffset;
GLboolean mapColor; GLboolean mapStencil;} __GLpixelTransferMode;
//!!! Don't change this structure without changing MCDPIXELPACK !!!
typedef struct __GLpixelPackModeRec { GLboolean swapEndian; GLboolean lsbFirst;
GLuint lineLength; GLuint skipLines; GLuint skipPixels; GLuint alignment;} __GLpixelPackMode;
//!!! Don't change this structure without changing MCDPIXELUNPACK !!!
typedef struct __GLpixelUnpackModeRec { GLboolean swapEndian; GLboolean lsbFirst;
GLuint lineLength; GLuint skipLines; GLuint skipPixels; GLuint alignment;} __GLpixelUnpackMode;
typedef struct __GLpixelStateRec { __GLpixelTransferMode transferMode; __GLpixelMapHead pixelMap[__GL_N_PIXEL_MAPS]; __GLpixelPackMode packModes; __GLpixelUnpackMode unpackModes; GLuint pixelMapTableId;
/*
** Read buffer. Where pixel reads come from. */ GLenum readBuffer;
/*
** Read buffer specified by user. May be different from readBuffer ** above. If the user specifies GL_FRONT_LEFT, for example, then ** readBuffer is set to GL_FRONT, and readBufferReturn to ** GL_FRONT_LEFT. */ GLenum readBufferReturn;} __GLpixelState;
typedef struct __GLpixelMachineRec { GLboolean modifyRGBA; /* Is the RGBA path being modified? */ GLboolean modifyCI; GLboolean modifyDepth; GLboolean modifyStencil; /* scaled values indicating what a red of 0 maps to, an alpha of 1 ... */ GLfloat red0Mod, green0Mod, blue0Mod, alpha1Mod; GLfloat *redMap; /* Lookup tables with no modification */ GLfloat *greenMap; GLfloat *blueMap; GLfloat *alphaMap; GLfloat *iMap; GLvoid *iCurMap, *redCurMap, *greenCurMap, *blueCurMap, *alphaCurMap; GLboolean rgbaCurrent; GLfloat *redModMap; /* Lookup tables for modification path */ GLfloat *greenModMap; GLfloat *blueModMap; GLfloat *alphaModMap; GLboolean iToICurrent; /* Lookup table for modification of CI */ GLfloat *iToIMap; GLboolean iToRGBACurrent; /* Lookup tables from CI to RGBA */ GLfloat *iToRMap; GLfloat *iToGMap; GLfloat *iToBMap; GLfloat *iToAMap;} __GLpixelMachine;
extern void FASTCALL __glInitDefaultPixelMap(__GLcontext *gc, GLenum map);
/************************************************************************/
#define __GL_MAX_SPAN_SIZE (__GL_MAX_MAX_VIEWPORT * 4 * sizeof(GLfloat))
struct __GLpixelSpanInfoRec { GLenum srcFormat, srcType; /* Form of source image */ const GLvoid *srcImage; /* The source image */ GLvoid *srcCurrent; /* The current pointer into the source data */ GLint srcRowIncrement; /* Add this much to get to the next row */ GLint srcGroupIncrement; /* Add this much to get to the next group */ GLint srcComponents; /* (4 for RGBA, 1 for ALPHA, etc.) */ GLint srcElementSize; /* Size of one element (1 for BYTE) */ GLint srcSwapBytes; GLint srcLsbFirst; GLint srcSkipPixels, srcSkipLines; GLint srcLineLength; GLint srcAlignment; GLboolean srcPackedData; /* True if source data is packed */ GLint srcStartBit; /* After applying skipPixels */
GLenum dstFormat, dstType; /* Form of destination image */ const GLvoid *dstImage; /* The destination image */ GLvoid *dstCurrent; /* The current pointer into the dest data */ GLint dstRowIncrement; /* Add this much to get to the next row */ GLint dstGroupIncrement; /* Add this much to get to the next group */ GLint dstComponents; /* (4 for RGBA, 1 for ALPHA, etc.) */ GLint dstElementSize; /* Size of one element (1 for BYTE) */ GLint dstSwapBytes; GLint dstLsbFirst; GLint dstSkipPixels, dstSkipLines; GLint dstLineLength; GLint dstAlignment; GLboolean dstPackedData; /* True if destination data is packed */ GLint dstStartBit; /* After applying skipPixels */
__GLfloat zoomx, zoomy; GLint width, height; /* Size of image */ GLint realWidth; /* Width of actual span (after xZoom) */ __GLfloat readX, readY; /* Reading coords (CopyPixels, ReadPixels) */ __GLfloat x, y; /* Effective raster coordinates */ GLint startCol, startRow; /* First actual pixel goes here */ GLint endCol; /* Last column rendered (minus coladd) */ GLint columns, rows; /* Taking zoomx, zoomy into account */ GLboolean overlap; /* Do CopyPixels src/dest regions overlap? */ GLint rowsUp, rowsDown; /* Stuff for overlapping CopyPixels regions */ GLint rowadd, coladd; /* Adders for incrementing the col or row */ __GLfloat rendZoomx; /* effective zoomx for render span */ __GLzValue fragz; /* save this computation in the span walker */ __GLfloat rpyUp, rpyDown; GLint startUp, startDown; GLint readUp, readDown; GLvoid *redMap, *greenMap, *blueMap, *alphaMap; GLvoid *indexMap; GLshort *pixelArray; /* Array of pixel relication counts (if */ /* zoomx < -1 or zoomx > 1) or pixels to */ /* skip (if zoomx < 1 and zoomx > -1). */
#ifdef GL_EXT_paletted_texture
// Used when the source or destination has a palette
// These fields are only used for expanding palette index
// data into RGBA so only source fields are needed
RGBQUAD *srcPalette; GLint srcPaletteSize;#endif
/*
** A pile of span routines used by the DrawPixels, ReadPixels, and ** CopyPixels functions. */ void (FASTCALL *spanReader)(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *outspan); void (*(spanModifier[7]))(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan); void (FASTCALL *spanRender)(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan);};
/* px_api.c */extern GLboolean __glCheckDrawPixelArgs(__GLcontext *gc, GLsizei width, GLsizei height, GLenum format, GLenum type);void FASTCALL __glPixelSetColorScales(__GLcontext *);
/* px_paths.c */GLboolean FASTCALL __glClipDrawPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glComputeSpanPixelArray(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glLoadUnpackModes(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLboolean packed);void __glInitDrawPixelsInfo(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLint width, GLint height, GLenum format, GLenum type, const GLvoid *pixels);void FASTCALL __glDrawPixels4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glDrawPixels3(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glDrawPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glDrawPixels1(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glDrawPixels0(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glSlowPickDrawPixels(__GLcontext *gc, GLint width, GLint height, GLenum format, GLenum type, const GLvoid *pixels, GLboolean packed);void FASTCALL __glGenericPickDrawPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);GLboolean FASTCALL __glClipReadPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glLoadPackModes(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glInitReadPixelsInfo(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLint x, GLint y, GLint width, GLint height, GLenum format, GLenum type, const GLvoid *pixels);void FASTCALL __glReadPixels5(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glReadPixels4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glReadPixels3(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glReadPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glReadPixels1(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glReadPixels0(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glSlowPickReadPixels(__GLcontext *gc, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);void FASTCALL __glGenericPickReadPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);GLboolean FASTCALL __glClipCopyPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glInitCopyPixelsInfo(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLint x, GLint y, GLint width, GLint height, GLenum format);void FASTCALL __glCopyPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyPixels1(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyPixels0(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyPixelsOverlapping(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLint modifiers);void __glSlowPickCopyPixels(__GLcontext *gc, GLint x, GLint y, GLint width, GLint height, GLenum type);void FASTCALL __glGenericPickCopyPixels(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage1(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage3(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage5(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage6(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glCopyImage7(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void FASTCALL __glGenericPickCopyImage(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLboolean applyPixelTransfer);
/* px_modify.c */void FASTCALL __glBuildRGBAModifyTables(__GLcontext *gc, __GLpixelMachine *pm);void FASTCALL __glBuildItoIModifyTables(__GLcontext *gc, __GLpixelMachine *pm);void FASTCALL __glBuildItoRGBAModifyTables(__GLcontext *gc, __GLpixelMachine *pm);void __glSpanModifyRGBA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyRed(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyBlue(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyGreen(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyRGB(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyLuminance(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyLuminanceAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyRedAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyDepth(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyStencil(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanModifyCI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);
/* px_pack.c */void FASTCALL __glInitPacker(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glSpanReduceRed(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceGreen(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceBlue(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceRGB(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#ifdef GL_EXT_bgra
void __glSpanReduceBGR(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#endif
void __glSpanReduceLuminance(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceLuminanceAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanReduceRedAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUbyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackByte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUshort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackShort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUint(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackInt(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUbyteI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackByteI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUshortI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackShortI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackUintI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackIntI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanCopy(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanPackBitmap(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);
/* px_read.c */void FASTCALL __glSpanReadRGBA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadRGBA2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadCI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadCI2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadDepth(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadDepth2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadStencil(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanReadStencil2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);
/* px_render.c */void FASTCALL __glSlowDrawPixelsStore(__GLcolorBuffer *cfb, const __GLfragment *frag);void FASTCALL __glSpanRenderRGBubyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderRGBubyte2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderRGBAubyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderRGBAubyte2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepthUint(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepthUint2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepth2Uint(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepth2Uint2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencilUshort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencilUshort2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencilUbyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencilUbyte2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIushort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIushort2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIubyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIubyte2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIubyte3(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCIubyte4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderRGBA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderRGBA2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepth(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderDepth2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderCI2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencil(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);void FASTCALL __glSpanRenderStencil2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *span);
/* px_unpack.c */GLint FASTCALL __glElementsPerGroup(GLenum format);__GLfloat FASTCALL __glBytesPerElement(GLenum type);void FASTCALL __glInitUnpacker(__GLcontext *gc, __GLpixelSpanInfo *spanInfo);void __glSpanUnpackBitmap(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackBitmap2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackRGBubyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackIndexUbyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackRGBAubyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapBytes2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapBytes2Dst(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapAndSkipBytes2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapBytes4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapBytes4Dst(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSwapAndSkipBytes4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSkipPixels1(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSkipPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSkipPixels4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSlowSkipPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanSlowSkipPixels4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanAlignPixels2(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanAlignPixels2Dst(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanAlignPixels4(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanAlignPixels4Dst(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUbyte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackByte(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUshort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackShort(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUint(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackInt(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUbyteI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackByteI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUshortI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackShortI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackUintI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnpackIntI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanClampFloat(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanClampSigned(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandRed(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandGreen(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandBlue(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandRGB(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#ifdef GL_EXT_bgra
void __glSpanExpandBGR(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#endif
void __glSpanExpandLuminance(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandLuminanceAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanExpandRedAlpha(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanScaleRGBA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnscaleRGBA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#ifdef GL_EXT_bgra
void __glSpanScaleBGRA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanUnscaleBGRA(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#endif
#ifdef GL_EXT_paletted_texture
void __glSpanModifyPI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);void __glSpanScalePI(__GLcontext *gc, __GLpixelSpanInfo *spanInfo, GLvoid *inspan, GLvoid *outspan);#endif
#endif /* _pixel_h_ */
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