src/mesa/pipe/softpipe/sp_surface.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * 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
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30
  31 #ifndef G_SURFACE_H
  32 #define G_SURFACE_H
  33
  34 #include "glheader.h"
  35 #include "sp_headers.h"
  36
  37 struct softpipe_surface;
  38
  39 #define G_SURFACE_RGBA_8888  0x1
  40
  41
  42 /**
  43  * Softpipe surface is derived from pipe_surface.
  44  */
  45 struct softpipe_surface {
  46    struct pipe_surface surface;
  47
  48    /**
  49     * Functions for read/writing surface data
  50     */
  51    void (*read_quad_f)( struct softpipe_surface *,
  52                         GLint x, GLint y,
  53                         GLfloat (*rgba)[NUM_CHANNELS] );
  54
  55    void (*read_quad_f_swz)( struct softpipe_surface *,
  56                             GLint x, GLint y,
  57                             GLfloat (*rrrr)[QUAD_SIZE] );
  58
  59    void (*read_quad_ub)( struct softpipe_surface *,
  60                          GLint x, GLint y,
  61                          GLubyte (*rgba)[NUM_CHANNELS] );
  62
  63
  64    void (*write_quad_f)( struct softpipe_surface *,
  65                          GLint x, GLint y,
  66                          GLfloat (*rgba)[NUM_CHANNELS] );
  67
  68    void (*write_quad_f_swz)( struct softpipe_surface *,
  69                              GLint x, GLint y,
  70                              GLfloat (*rrrr)[QUAD_SIZE] );
  71
  72
  73    void (*write_quad_ub)( struct softpipe_surface *,
  74                           GLint x, GLint y,
  75                           GLubyte (*rgba)[NUM_CHANNELS] );
  76
  77    void (*write_mono_row_ub)( struct softpipe_surface *,
  78                               GLuint count, GLint x, GLint y,
  79                               GLubyte rgba[NUM_CHANNELS] );
  80
  81    void (*read_quad_z)(struct softpipe_surface *,
  82                        GLint x, GLint y, GLfloat zzzz[QUAD_SIZE]);
  83    void (*write_quad_z)(struct softpipe_surface *,
  84                         GLint x, GLint y, const GLfloat zzzz[QUAD_SIZE]);
  85 };
  86
  87
  88 /** Cast wrapper */
  89 static INLINE struct softpipe_surface *
  90 softpipe_surface(struct pipe_surface *ps)
  91 {
  92    return (struct softpipe_surface *) ps;
  93 }
  94
  95
  96 #endif