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/*
* libtxc_dxtn
* Version: 1.0
*
* Copyright (C) 2004 Roland Scheidegger 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL 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 _TXC_DXTN_H
#define _TXC_DXTN_H
#include <GL/gl.h>
typedef GLubyte GLchan;
#define UBYTE_TO_CHAN(b) (b)
#define CHAN_MAX 255
#define RCOMP 0
#define GCOMP 1
#define BCOMP 2
#define ACOMP 3
void fetch_2d_texel_rgb_dxt1(GLint srcRowStride, const GLubyte *pixdata,
GLint i, GLint j, GLvoid *texel);
void fetch_2d_texel_rgba_dxt1(GLint srcRowStride, const GLubyte *pixdata,
GLint i, GLint j, GLvoid *texel);
void fetch_2d_texel_rgba_dxt3(GLint srcRowStride, const GLubyte *pixdata,
GLint i, GLint j, GLvoid *texel);
void fetch_2d_texel_rgba_dxt5(GLint srcRowStride, const GLubyte *pixdata,
GLint i, GLint j, GLvoid *texel);
void tx_compress_dxtn(GLint srccomps, GLint width, GLint height,
const GLubyte *srcPixData, GLenum destformat,
GLubyte *dest, GLint dstRowStride);
#endif /* _TXC_DXTN_H */
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