src/mesa/swrast/s_span.h

   1 /* $Id: s_span.h,v 1.6 2001/05/15 21:30:27 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 #ifndef S_SPAN_H
  29 #define S_SPAN_H
  30
  31
  32 #include "mtypes.h"
  33 #include "swrast.h"
  34
  35
  36 extern void
  37 _mesa_write_index_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  38                         const GLdepth z[], const GLfloat fog[],
  39                         GLuint index[], const GLint coverage[],
  40                         GLenum primitive );
  41
  42
  43 extern void
  44 _mesa_write_monoindex_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  45                             const GLdepth z[], const GLfloat fog[],
  46                             GLuint index, const GLint coverage[],
  47                             GLenum primitive );
  48
  49
  50 extern void
  51 _mesa_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  52                        const GLdepth z[], const GLfloat fog[],
  53                        GLchan rgba[][4], const GLfloat coverage[],
  54                        GLenum primitive );
  55
  56
  57 extern void
  58 _mesa_write_monocolor_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  59                             const GLdepth z[], const GLfloat fog[],
  60                             const GLchan color[4], const GLfloat coverage[],
  61                             GLenum primitive );
  62
  63
  64 extern void
  65 _mesa_write_texture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  66                           const GLdepth z[], const GLfloat fog[],
  67                           const GLfloat s[], const GLfloat t[],
  68                           const GLfloat u[], GLfloat lambda[],
  69                           GLchan rgba[][4], CONST GLchan spec[][4],
  70                           const GLfloat coverage[], GLenum primitive );
  71
  72
  73 extern void
  74 _mesa_write_multitexture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  75                                const GLdepth z[], const GLfloat fog[],
  76                                CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
  77                                CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
  78                                CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
  79                                GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH],
  80                                GLchan rgba[][4], CONST GLchan spec[][4],
  81                                const GLfloat coverage[],  GLenum primitive );
  82
  83
  84 extern void
  85 _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
  86                       GLuint n, GLint x, GLint y, GLchan rgba[][4] );
  87
  88
  89 extern void
  90 _mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
  91                        GLuint n, GLint x, GLint y, GLuint indx[] );
  92
  93
  94 #endif