/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.1
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#define ENABLE_TEXGEN(i) (ENABLE_TEXGEN0 << (i))
#define ENABLE_TEXMAT(i) (ENABLE_TEXMAT0 << (i))
+
/**
- * Texel fetch function prototype.
+ * Texel fetch function prototype. We use texel fetch functions to
+ * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
+ * texture images. These functions help to isolate us from the gritty
+ * details of all the various texture image encodings.
*
* \param texImage texture image.
* \param col texel column.
* \param row texel row.
- * \param img texel level.
- * \param texelOut output texel. If \p texImage is color-index, \p texelOut
- * returns <tt>GLchan[1]</tt>. If \p texImage is depth, \p texelOut returns
- * <tt>GLfloat[1]</tt>. Otherwise, \p texelOut returns <tt>GLchan[4]</tt>.
+ * \param img texel image level/layer.
+ * \param texelOut output texel (up to 4 GLchans)
+ */
+typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ GLchan *texelOut );
+
+/**
+ * As above, but returns floats.
+ * Used for depth component images and for upcoming signed/float
+ * texture images.
*/
-typedef void (*FetchTexelFunc)( const struct gl_texture_image *texImage,
- GLint col, GLint row, GLint img,
- GLvoid *texelOut );
+typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ GLfloat *texelOut );
/**
* Texture format record
* \name Texel fetch function pointers
*/
/*@{*/
- FetchTexelFunc FetchTexel1D;
- FetchTexelFunc FetchTexel2D;
- FetchTexelFunc FetchTexel3D;
+ FetchTexelFuncC FetchTexel1D;
+ FetchTexelFuncC FetchTexel2D;
+ FetchTexelFuncC FetchTexel3D;
+ FetchTexelFuncF FetchTexel1Df;
+ FetchTexelFuncF FetchTexel2Df;
+ FetchTexelFuncF FetchTexel3Df;
/*@}*/
};
const struct gl_texture_format *TexFormat;
- FetchTexelFunc FetchTexel; /**< Texel fetch function pointer */
+ FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */
+ FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */
GLboolean IsCompressed; /**< GL_ARB_texture_compression */
GLuint CompressedSize; /**< GL_ARB_texture_compression */
/** \name Software alpha planes */
/*@{*/
- GLvoid *FrontLeftAlpha; /**< array [Width*Height] of GLubyte */
- GLvoid *BackLeftAlpha; /**< array [Width*Height] of GLubyte */
- GLvoid *FrontRightAlpha; /**< array [Width*Height] of GLubyte */
- GLvoid *BackRightAlpha; /**< array [Width*Height] of GLubyte */
+ GLchan *FrontLeftAlpha; /**< array [Width*Height] of GLchan */
+ GLchan *BackLeftAlpha; /**< array [Width*Height] of GLchan */
+ GLchan *FrontRightAlpha; /**< array [Width*Height] of GLchan */
+ GLchan *BackRightAlpha; /**< array [Width*Height] of GLchan */
/*@}*/
/**
/**
* \name Bits to indicate what state has changed.
*
- * 6 unused flags.
+ * 4 unused flags.
*/
/*@{*/
#define _NEW_MODELVIEW 0x1 /**< __GLcontextRec::ModelView */
*/
/*@{*/
#define _DD_NEW_FLATSHADE _NEW_LIGHT
-#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG)
+#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON