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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.
*
**************************************************************************/
#ifndef LP_TILE_SOA_H
#define LP_TILE_SOA_H
#include "pipe/p_compiler.h"
#include "tgsi/tgsi_exec.h" /* for TGSI_NUM_CHANNELS */
#include "lp_limits.h"
#ifdef __cplusplus
extern "C" {
#endif
struct pipe_transfer;
#define TILE_VECTOR_HEIGHT 4
#define TILE_VECTOR_WIDTH 4
extern const unsigned char
tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];
#define TILE_C_STRIDE (TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH) //16
#define TILE_X_STRIDE (TGSI_NUM_CHANNELS * TILE_C_STRIDE) //64
#define TILE_Y_STRIDE (TILE_VECTOR_HEIGHT * TILE_SIZE * TGSI_NUM_CHANNELS) //1024
#ifdef DEBUG
extern unsigned lp_tile_unswizzle_count;
extern unsigned lp_tile_swizzle_count;
#endif
/**
* Return offset of the given pixel (and color channel) from the start
* of a tile, in bytes.
*/
static INLINE unsigned
tile_pixel_offset(unsigned x, unsigned y, unsigned c)
{
unsigned ix = (x / TILE_VECTOR_WIDTH) * TILE_X_STRIDE;
unsigned iy = (y / TILE_VECTOR_HEIGHT) * TILE_Y_STRIDE;
unsigned offset = iy + ix + c * TILE_C_STRIDE +
tile_offset[y % TILE_VECTOR_HEIGHT][x % TILE_VECTOR_WIDTH];
return offset;
}
#define TILE_PIXEL(_p, _x, _y, _c) ((_p)[tile_pixel_offset(_x, _y, _c)])
void
lp_tile_swizzle_4ub(enum pipe_format format,
uint8_t *dst,
const void *src, unsigned src_stride,
unsigned x, unsigned y);
void
lp_tile_unswizzle_4ub(enum pipe_format format,
const uint8_t *src,
void *dst, unsigned dst_stride,
unsigned x, unsigned y);
#ifdef __cplusplus
}
#endif
#endif
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