src/mesa/swrast/s_span.h

   1 /* $Id: s_span.h,v 1.7 2001/11/19 01:18:28 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 #include "s_trispan.h"
  35
  36
  37 extern void
  38 _mesa_write_index_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  39                         const GLdepth z[], const GLfloat fog[],
  40                         GLuint index[], const GLint coverage[],
  41                         GLenum primitive );
  42
  43
  44 extern void
  45 _mesa_write_monoindex_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  46                             const GLdepth z[], const GLfloat fog[],
  47                             GLuint index, const GLint coverage[],
  48                             GLenum primitive );
  49
  50
  51 extern void
  52 _mesa_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  53                        const GLdepth z[], const GLfloat fog[],
  54                        GLchan rgba[][4], const GLfloat coverage[],
  55                        GLenum primitive );
  56
  57
  58 extern void
  59 _mesa_write_monocolor_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  60                             const GLdepth z[], const GLfloat fog[],
  61                             const GLchan color[4], const GLfloat coverage[],
  62                             GLenum primitive );
  63
  64
  65 extern void
  66 _mesa_rasterize_span(GLcontext *ctx, struct triangle_span *span);
  67
  68
  69 extern void
  70 _mesa_write_texture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  71                           const GLdepth z[], const GLfloat fog[],
  72                           const GLfloat s[], const GLfloat t[],
  73                           const GLfloat u[], GLfloat lambda[],
  74                           GLchan rgba[][4], CONST GLchan spec[][4],
  75                           const GLfloat coverage[], GLenum primitive );
  76
  77
  78 extern void
  79 _mesa_write_multitexture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  80                                const GLdepth z[], const GLfloat fog[],
  81                                CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
  82                                CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
  83                                CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
  84                                GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH],
  85                                GLchan rgba[][4], CONST GLchan spec[][4],
  86                                const GLfloat coverage[],  GLenum primitive );
  87
  88
  89 extern void
  90 _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
  91                       GLuint n, GLint x, GLint y, GLchan rgba[][4] );
  92
  93
  94 extern void
  95 _mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
  96                        GLuint n, GLint x, GLint y, GLuint indx[] );
  97
  98
  99 #endif