src/mesa/swrast/s_span.h

   1 /* $Id: s_span.h,v 1.10 2002/01/16 16:00:04 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  4.1
   6  *
   7  * Copyright (C) 1999-2002  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 _old_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 extern void
  43 _old_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  44                        const GLdepth z[], const GLfloat fog[],
  45                        GLchan rgba[][4], const GLfloat coverage[],
  46                        GLenum primitive );
  47
  48 void
  49 _mesa_write_index_span( GLcontext *ctx, struct sw_span *span,
  50                         GLenum primitive);
  51
  52 extern void
  53 _mesa_write_monoindex_span( GLcontext *ctx, struct sw_span *span,
  54                             GLuint index, GLenum primitive );
  55
  56 extern void
  57 _mesa_write_rgba_span( GLcontext *ctx, struct sw_span *span,
  58                        GLenum primitive );
  59
  60 extern void
  61 _mesa_write_monocolor_span( GLcontext *ctx, struct sw_span *span,
  62                             const GLchan color[4], GLenum primitive );
  63
  64 extern void
  65 _mesa_write_texture_span( GLcontext *ctx, struct sw_span *span,
  66                           const GLfloat fog[], GLenum primitive );
  67
  68
  69 extern void
  70 _mesa_rasterize_span(GLcontext *ctx, struct sw_span *span);
  71
  72
  73 extern void
  74 _old_write_texture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  75                          const GLdepth z[], const GLfloat fog[],
  76                          GLfloat texcoord[][4], GLfloat lambda[],
  77                          GLchan rgba[][4], GLchan spec[][4],
  78                          const GLfloat coverage[], GLenum primitive );
  79
  80
  81 extern void
  82 _old_write_multitexture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  83                               const GLdepth z[], const GLfloat fog[],
  84                               GLfloat texcoord[MAX_TEXTURE_UNITS][MAX_WIDTH][4],
  85                               GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH],
  86                               GLchan rgba[][4], GLchan spec[][4],
  87                               const GLfloat coverage[],  GLenum primitive );
  88
  89
  90 extern void
  91 _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
  92                       GLuint n, GLint x, GLint y, GLchan rgba[][4] );
  93
  94
  95 extern void
  96 _mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
  97                        GLuint n, GLint x, GLint y, GLuint indx[] );
  98
  99
 100 #endif