reactos/dll/3rdparty/dxtn/wrapper.c

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/*
* Texture compression
* Version: 1.0
*
* Copyright (C) 2004 Daniel Borca All Rights Reserved.
*
* this is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* this is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <assert.h>
#include "types.h"
#include "internal.h"
#include "dxtn.h"
#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
TAPI void TAPIENTRY
fetch_2d_texel_rgb_dxt1 (int texImage_RowStride,
const byte *texImage_Data,
int i, int j,
byte *texel)
{
dxt1_rgb_decode_1(texImage_Data, texImage_RowStride, i, j, texel);
}
TAPI void TAPIENTRY
fetch_2d_texel_rgba_dxt1 (int texImage_RowStride,
const byte *texImage_Data,
int i, int j,
byte *texel)
{
dxt1_rgba_decode_1(texImage_Data, texImage_RowStride, i, j, texel);
}
TAPI void TAPIENTRY
fetch_2d_texel_rgba_dxt3 (int texImage_RowStride,
const byte *texImage_Data,
int i, int j,
byte *texel)
{
dxt3_rgba_decode_1(texImage_Data, texImage_RowStride, i, j, texel);
}
TAPI void TAPIENTRY
fetch_2d_texel_rgba_dxt5 (int texImage_RowStride,
const byte *texImage_Data,
int i, int j,
byte *texel)
{
dxt5_rgba_decode_1(texImage_Data, texImage_RowStride, i, j, texel);
}
TAPI void TAPIENTRY
tx_compress_dxtn (int srccomps, int width, int height,
const byte *source, int destformat, byte *dest,
int destRowStride)
{
int srcRowStride = width * srccomps;
int rv;
switch (destformat) {
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
rv = dxt1_rgb_encode(width, height, srccomps,
source, srcRowStride,
dest, destRowStride);
break;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
rv = dxt1_rgba_encode(width, height, srccomps,
source, srcRowStride,
dest, destRowStride);
break;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
rv = dxt3_rgba_encode(width, height, srccomps,
source, srcRowStride,
dest, destRowStride);
break;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
rv = dxt5_rgba_encode(width, height, srccomps,
source, srcRowStride,
dest, destRowStride);
break;
default:
assert(0);
}
/*return rv;*/
}