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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "spu_tile.h"
#include "spu_main.h"
/**
* Get tile of color or Z values from main memory, put into SPU memory.
*/
void
get_tile(uint tx, uint ty, tile_t *tile, int tag, int zBuf)
{
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 */);
}
/**
* Move tile of color or Z values from SPU memory to main memory.
*/
void
put_tile(uint tx, uint ty, const tile_t *tile, int tag, int zBuf)
{
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 */);
}
/**
* For tiles whose status is TILE_STATUS_CLEAR, write solid-filled
* tiles back to the main framebuffer.
*/
void
really_clear_tiles(uint surfaceIndex)
{
const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
uint i;
if (surfaceIndex == 0) {
clear_c_tile(&spu.ctile);
for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
uint tx = i % spu.fb.width_tiles;
uint ty = i / spu.fb.width_tiles;
if (spu.ctile_status[ty][tx] == TILE_STATUS_CLEAR) {
put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0);
}
}
}
else {
clear_z_tile(&spu.ztile);
for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
uint tx = i % spu.fb.width_tiles;
uint ty = i / spu.fb.width_tiles;
if (spu.ztile_status[ty][tx] == TILE_STATUS_CLEAR)
put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 1);
}
}
#if 0
wait_on_mask(1 << TAG_SURFACE_CLEAR);
#endif
}
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