/**************************************************************************
 *
 * Copyright 2010 VMware, Inc.
 * 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 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
 * THE COPYRIGHT HOLDERS, AUTHORS 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 **************************************************************************/


#ifndef U_FORMAT_S3TC_H_
#define U_FORMAT_S3TC_H_


#include "pipe/p_compiler.h"

#ifdef __cplusplus
extern "C" {
#endif

enum util_format_dxtn {
  UTIL_FORMAT_DXT1_RGB = 0x83F0,
  UTIL_FORMAT_DXT1_RGBA = 0x83F1,
  UTIL_FORMAT_DXT3_RGBA = 0x83F2,
  UTIL_FORMAT_DXT5_RGBA = 0x83F3
};


typedef void
(*util_format_dxtn_fetch_t)( int src_stride,
                             const uint8_t *src,
                             int col, int row,
                             uint8_t *dst );

typedef void
(*util_format_dxtn_pack_t)( int src_comps,
                            int width, int height,
                            const uint8_t *src,
                            enum util_format_dxtn dst_format,
                            uint8_t *dst,
                            int dst_stride);

extern util_format_dxtn_fetch_t util_format_dxt1_rgb_fetch;
extern util_format_dxtn_fetch_t util_format_dxt1_rgba_fetch;
extern util_format_dxtn_fetch_t util_format_dxt3_rgba_fetch;
extern util_format_dxtn_fetch_t util_format_dxt5_rgba_fetch;

extern util_format_dxtn_pack_t util_format_dxtn_pack;


void
util_format_dxt1_rgb_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgb_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgb_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_rgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt3_rgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_rgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_rgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt5_rgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_rgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_rgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_srgb_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgb_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgb_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_srgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt3_srgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_srgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_srgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt5_srgba_unpack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_srgba_pack_rgba_8unorm(uint8_t *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_srgba_fetch_rgba_8unorm(uint8_t *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);


void
util_format_dxt1_rgb_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgb_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgb_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_rgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_rgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt3_rgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_rgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_rgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt5_rgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_rgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_rgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_srgb_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgb_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgb_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt1_srgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt1_srgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt3_srgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_srgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt3_srgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

void
util_format_dxt5_srgba_unpack_rgba_float(void *restrict dst_row, unsigned dst_stride, const uint8_t *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_srgba_pack_rgba_float(uint8_t *restrict dst_row, unsigned dst_stride, const float *restrict src_row, unsigned src_stride, unsigned width, unsigned height);

void
util_format_dxt5_srgba_fetch_rgba(void *restrict dst, const uint8_t *restrict src, unsigned i, unsigned j);

#ifdef __cplusplus
}
#endif

#endif /* U_FORMAT_S3TC_H_ */
