src/mesa/swrast/s_masking.h

   1 /* $Id: s_masking.h,v 1.4 2002/02/02 17:24:11 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_MASKING_H
  29 #define S_MASKING_H
  30
  31
  32 #include "mtypes.h"
  33 #include "swrast.h"
  34
  35
  36 /*
  37  * Implement glColorMask for a span of RGBA pixels.
  38  */
  39 extern void
  40 _mesa_mask_rgba_span( GLcontext *ctx, const struct sw_span *span,
  41                       GLchan rgba[][4] );
  42
  43
  44 extern void
  45 _mesa_mask_rgba_array( GLcontext *ctx, GLuint n, GLint x, GLint y,
  46                        GLchan rgba[][4] );
  47
  48
  49 /*
  50  * Implement glColorMask for an array of RGBA pixels.
  51  */
  52 extern void
  53 _mesa_mask_rgba_pixels( GLcontext *ctx,
  54                         GLuint n, const GLint x[], const GLint y[],
  55                         GLchan rgba[][4], const GLubyte mask[] );
  56
  57
  58
  59 /*
  60  * Implement glIndexMask for a span of CI pixels.
  61  */
  62 extern void
  63 _mesa_mask_index_span( GLcontext *ctx, const struct sw_span *span,
  64                        GLuint index[] );
  65
  66
  67
  68 /*
  69  * Implement glIndexMask for a span of CI pixels.
  70  */
  71 extern void
  72 _mesa_mask_index_array( GLcontext *ctx,
  73                         GLuint n, GLint x, GLint y, GLuint index[] );
  74
  75
  76
  77 /*
  78  * Implement glIndexMask for an array of CI pixels.
  79  */
  80 extern void
  81 _mesa_mask_index_pixels( GLcontext *ctx,
  82                          GLuint n, const GLint x[], const GLint y[],
  83                          GLuint index[], const GLubyte mask[] );
  84
  85
  86
  87 #endif