src/gallium/drivers/llvmpipe/lp_tile_soa.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 #ifndef LP_TILE_SOA_H
  29 #define LP_TILE_SOA_H
  30
  31 #include "pipe/p_compiler.h"
  32 #include "tgsi/tgsi_exec.h" /* for NUM_CHANNELS */
  33
  34
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39
  40 struct pipe_transfer;
  41
  42
  43 /**
  44  * Cache tile size (width and height). This needs to be a power of two.
  45  */
  46 #define TILE_SIZE 64
  47
  48
  49 #define TILE_VECTOR_HEIGHT 2
  50 #define TILE_VECTOR_WIDTH 8
  51
  52 extern const unsigned char
  53 tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];
  54
  55 #define TILE_C_STRIDE (TILE_VECTOR_HEIGHT*TILE_VECTOR_WIDTH)
  56 #define TILE_X_STRIDE (NUM_CHANNELS*TILE_C_STRIDE)
  57 #define TILE_Y_STRIDE (TILE_VECTOR_HEIGHT*TILE_SIZE*NUM_CHANNELS)
  58
  59 #define TILE_PIXEL(_p, _x, _y, _c) \
  60    ((_p)[((_y)/TILE_VECTOR_HEIGHT)*TILE_Y_STRIDE + \
  61          ((_x)/TILE_VECTOR_WIDTH)*TILE_X_STRIDE + \
  62          (_c)*TILE_C_STRIDE + \
  63          tile_offset[(_y) % TILE_VECTOR_HEIGHT][(_x) % TILE_VECTOR_WIDTH]])
  64
  65
  66 void
  67 lp_tile_read_4ub(enum pipe_format format,
  68                  uint8_t *dst,
  69                  const void *src, unsigned src_stride,
  70                  unsigned x, unsigned y, unsigned w, unsigned h);
  71
  72
  73 void
  74 lp_tile_write_4ub(enum pipe_format format,
  75                   const uint8_t *src,
  76                   void *dst, unsigned dst_stride,
  77                   unsigned x, unsigned y, unsigned w, unsigned h);
  78
  79
  80
  81 #ifdef __cplusplus
  82 }
  83 #endif
  84
  85 #endif