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 /**
  35  * Get tile of color or Z values from main memory, put into SPU memory.
  36  */
  37 void
  38 get_tile(uint tx, uint ty, tile_t *tile, int tag, int zBuf)
  39 {
  40    const uint offset = ty * spu.fb.width_tiles + tx;
  41    const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
  42    const ubyte *src = zBuf ? spu.fb.depth_start : spu.fb.color_start;
  43
  44    src += offset * bytesPerTile;
  45
  46    ASSERT(tx < spu.fb.width_tiles);
  47    ASSERT(ty < spu.fb.height_tiles);
  48    ASSERT_ALIGN16(tile);
  49    /*
  50    printf("get_tile:  dest: %p  src: 0x%x  size: %d\n",
  51           tile, (unsigned int) src, bytesPerTile);
  52    */
  53    mfc_get(tile->ui,  /* dest in local memory */
  54            (unsigned int) src, /* src in main memory */
  55            bytesPerTile,
  56            tag,
  57            0, /* tid */
  58            0  /* rid */);
  59 }
  60
  61
  62 /**
  63  * Move tile of color or Z values from SPU memory to main memory.
  64  */
  65 void
  66 put_tile(uint tx, uint ty, const tile_t *tile, int tag, int zBuf)
  67 {
  68    const uint offset = ty * spu.fb.width_tiles + tx;
  69    const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
  70    ubyte *dst = zBuf ? spu.fb.depth_start : spu.fb.color_start;
  71
  72    dst += offset * bytesPerTile;
  73
  74    ASSERT(tx < spu.fb.width_tiles);
  75    ASSERT(ty < spu.fb.height_tiles);
  76    ASSERT_ALIGN16(tile);
  77    /*
  78    printf("SPU %u: put_tile:  src: %p  dst: 0x%x  size: %d\n",
  79           spu.init.id,
  80           tile, (unsigned int) dst, bytesPerTile);
  81    */
  82    mfc_put((void *) tile->ui,  /* src in local memory */
  83            (unsigned int) dst,  /* dst in main memory */
  84            bytesPerTile,
  85            tag,
  86            0, /* tid */
  87            0  /* rid */);
  88 }
  89
  90
  91 /**
  92  * For tiles whose status is TILE_STATUS_CLEAR, write solid-filled
  93  * tiles back to the main framebuffer.
  94  */
  95 void
  96 really_clear_tiles(uint surfaceIndex)
  97 {
  98    const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
  99    uint i;
 100
 101    if (surfaceIndex == 0) {
 102       clear_c_tile(&spu.ctile);
 103
 104       for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
 105          uint tx = i % spu.fb.width_tiles;
 106          uint ty = i / spu.fb.width_tiles;
 107          if (spu.ctile_status[ty][tx] == TILE_STATUS_CLEAR) {
 108             put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0);
 109          }
 110       }
 111    }
 112    else {
 113       clear_z_tile(&spu.ztile);
 114
 115       for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
 116          uint tx = i % spu.fb.width_tiles;
 117          uint ty = i / spu.fb.width_tiles;
 118          if (spu.ztile_status[ty][tx] == TILE_STATUS_CLEAR)
 119             put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 1);
 120       }
 121    }
 122
 123 #if 0
 124    wait_on_mask(1 << TAG_SURFACE_CLEAR);
 125 #endif
 126 }