src/mesa/swrast/s_masking.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  4.1
   5  *
   6  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef S_MASKING_H
  28 #define S_MASKING_H
  29
  30
  31 #include "mtypes.h"
  32 #include "swrast.h"
  33
  34
  35 /*
  36  * Implement glColorMask for a span of RGBA pixels.
  37  */
  38 extern void
  39 _swrast_mask_rgba_span( GLcontext *ctx, const struct sw_span *span,
  40                       GLchan rgba[][4] );
  41
  42
  43 extern void
  44 _swrast_mask_rgba_array( GLcontext *ctx, GLuint n, GLint x, GLint y,
  45                        GLchan rgba[][4] );
  46
  47
  48 /*
  49  * Implement glIndexMask for a span of CI pixels.
  50  */
  51 extern void
  52 _swrast_mask_index_span( GLcontext *ctx, const struct sw_span *span,
  53                        GLuint index[] );
  54
  55
  56 extern void
  57 _swrast_mask_index_array( GLcontext *ctx,
  58                         GLuint n, GLint x, GLint y, GLuint index[] );
  59
  60
  61 #endif