src/gallium/drivers/cell/spu/spu_tile.c

   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
  29
  30 #include "spu_tile.h"
  31 #include "spu_main.h"
  32
  33
  34 void
  35 get_tile(uint tx, uint ty, tile_t *tile, int tag, int zBuf)
  36 {
  37    const uint offset = ty * spu.fb.width_tiles + tx;
  38    const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
  39    const ubyte *src = zBuf ? spu.fb.depth_start : spu.fb.color_start;
  40
  41    src += offset * bytesPerTile;
  42
  43    ASSERT(tx < spu.fb.width_tiles);
  44    ASSERT(ty < spu.fb.height_tiles);
  45    ASSERT_ALIGN16(tile);
  46    /*
  47    printf("get_tile:  dest: %p  src: 0x%x  size: %d\n",
  48           tile, (unsigned int) src, bytesPerTile);
  49    */
  50    mfc_get(tile->ui,  /* dest in local memory */
  51            (unsigned int) src, /* src in main memory */
  52            bytesPerTile,
  53            tag,
  54            0, /* tid */
  55            0  /* rid */);
  56 }
  57
  58
  59 void
  60 put_tile(uint tx, uint ty, const tile_t *tile, int tag, int zBuf)
  61 {
  62    const uint offset = ty * spu.fb.width_tiles + tx;
  63    const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
  64    ubyte *dst = zBuf ? spu.fb.depth_start : spu.fb.color_start;
  65
  66    dst += offset * bytesPerTile;
  67
  68    ASSERT(tx < spu.fb.width_tiles);
  69    ASSERT(ty < spu.fb.height_tiles);
  70    ASSERT_ALIGN16(tile);
  71    /*
  72    printf("SPU %u: put_tile:  src: %p  dst: 0x%x  size: %d\n",
  73           spu.init.id,
  74           tile, (unsigned int) dst, bytesPerTile);
  75    */
  76    mfc_put((void *) tile->ui,  /* src in local memory */
  77            (unsigned int) dst,  /* dst in main memory */
  78            bytesPerTile,
  79            tag,
  80            0, /* tid */
  81            0  /* rid */);
  82 }
  83