spu_tile.c File Reference

Include dependency graph for spu_tile.c:

Go to the source code of this file.

Functions
void	get_tile (uint tx, uint ty, tile_t *tile, int tag, int zBuf)
	Get tile of color or Z values from main memory, put into SPU memory.
void	put_tile (uint tx, uint ty, const tile_t *tile, int tag, int zBuf)
	Move tile of color or Z values from SPU memory to main memory.

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Function Documentation

void get_tile	(	uint	tx,
		uint	ty,
		tile_t *	tile,
		int	tag,
		int	zBuf
	)

Get tile of color or Z values from main memory, put into SPU memory.

Definition at line 38 of file spu_tile.c.

References ASSERT, ASSERT_ALIGN16, spu_framebuffer::color_start, spu_framebuffer::depth_start, spu_global::fb, spu_framebuffer::height_tiles, offset(), spu, TILE_SIZE, tile_t::ui, spu_framebuffer::width_tiles, and spu_framebuffer::zsize.

{
   const uint offset = ty * spu.fb.width_tiles + tx;
   const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
   const ubyte *src = zBuf ? spu.fb.depth_start : spu.fb.color_start;

   src += offset * bytesPerTile;

   ASSERT(tx < spu.fb.width_tiles);
   ASSERT(ty < spu.fb.height_tiles);
   ASSERT_ALIGN16(tile);
   /*
   printf("get_tile:  dest: %p  src: 0x%x  size: %d\n",
          tile, (unsigned int) src, bytesPerTile);
   */
   mfc_get(tile->ui,  /* dest in local memory */
           (unsigned int) src, /* src in main memory */
           bytesPerTile,
           tag,
           0, /* tid */
           0  /* rid */);
}

void put_tile	(	uint	tx,
		uint	ty,
		const tile_t *	tile,
		int	tag,
		int	zBuf
	)

Move tile of color or Z values from SPU memory to main memory.

Definition at line 66 of file spu_tile.c.

References ASSERT, ASSERT_ALIGN16, spu_framebuffer::color_start, spu_framebuffer::depth_start, spu_global::fb, spu_framebuffer::height_tiles, offset(), spu, TILE_SIZE, tile_t::ui, spu_framebuffer::width_tiles, and spu_framebuffer::zsize.

{
   const uint offset = ty * spu.fb.width_tiles + tx;
   const uint bytesPerTile = TILE_SIZE * TILE_SIZE * (zBuf ? spu.fb.zsize : 4);
   ubyte *dst = zBuf ? spu.fb.depth_start : spu.fb.color_start;

   dst += offset * bytesPerTile;

   ASSERT(tx < spu.fb.width_tiles);
   ASSERT(ty < spu.fb.height_tiles);
   ASSERT_ALIGN16(tile);
   /*
   printf("SPU %u: put_tile:  src: %p  dst: 0x%x  size: %d\n",
          spu.init.id,
          tile, (unsigned int) dst, bytesPerTile);
   */
   mfc_put((void *) tile->ui,  /* src in local memory */
           (unsigned int) dst,  /* dst in main memory */
           bytesPerTile,
           tag,
           0, /* tid */
           0  /* rid */);
}

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