src/gallium/drivers/llvmpipe/lp_tile_soa.h

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   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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  16  * of the Software.
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  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 #include "lp_tile_size.h"
  34
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39
  40 struct pipe_transfer;
  41
  42
  43 #define TILE_VECTOR_HEIGHT 4
  44 #define TILE_VECTOR_WIDTH 4
  45
  46 extern const unsigned char
  47 tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];
  48
  49 #define TILE_C_STRIDE (TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH) //16
  50 #define TILE_X_STRIDE (NUM_CHANNELS * TILE_C_STRIDE) //64
  51 #define TILE_Y_STRIDE (TILE_VECTOR_HEIGHT * TILE_SIZE * NUM_CHANNELS) //1024
  52
  53 #define TILE_PIXEL(_p, _x, _y, _c) \
  54    ((_p)[((_y) / TILE_VECTOR_HEIGHT) * TILE_Y_STRIDE + \
  55          ((_x) / TILE_VECTOR_WIDTH) * TILE_X_STRIDE + \
  56          (_c) * TILE_C_STRIDE + \
  57          tile_offset[(_y) % TILE_VECTOR_HEIGHT][(_x) % TILE_VECTOR_WIDTH]])
  58
  59
  60 void
  61 lp_tile_read_4ub(enum pipe_format format,
  62                  uint8_t *dst,
  63                  const void *src, unsigned src_stride,
  64                  unsigned x, unsigned y, unsigned w, unsigned h);
  65
  66
  67 void
  68 lp_tile_write_4ub(enum pipe_format format,
  69                   const uint8_t *src,
  70                   void *dst, unsigned dst_stride,
  71                   unsigned x, unsigned y, unsigned w, unsigned h);
  72
  73
  74
  75 #ifdef __cplusplus
  76 }
  77 #endif
  78
  79 #endif