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/* $Id: texutil.h,v 1.4 2000/08/29 23:30:53 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.4
*
* Copyright (C) 1999-2000 Brian Paul 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 TEXUTIL_H
#define TEXUTIL_H
#include "types.h"
/*
* NOTE: "FF" means fill with byte value 0xff
*/
/* msb <------ TEXEL BITS -----------> lsb */
typedef enum { /* ---- ---- ---- ---- ---- ---- ---- ---- */
MESA_I8, /* IIII IIII */
MESA_L8, /* LLLL LLLL */
MESA_A8, /* AAAA AAAA */
MESA_C8, /* CCCC CCCC */
MESA_A8_L8, /* AAAA AAAA LLLL LLLL */
MESA_R5_G6_B5, /* RRRR RGGG GGGB BBBB */
MESA_A4_R4_G4_B4, /* AAAA RRRR GGGG BBBB */
MESA_A1_R5_G5_B5, /* ARRR RRGG GGGB BBBB */
MESA_A8_R8_G8_B8, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
MESA_FF_R8_G8_B8 /* FFFF FFFF RRRR RRRR GGGG GGGG BBBB BBBB */
} MesaIntTexFormat;
extern GLboolean
_mesa_convert_teximage(MesaIntTexFormat dstFormat,
GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
GLint dstRowStride,
GLint srcWidth, GLint srcHeight,
GLenum srcFormat, GLenum srcType,
const GLvoid *srcImage,
const struct gl_pixelstore_attrib *packing);
extern GLboolean
_mesa_convert_texsubimage(MesaIntTexFormat dstFormat,
GLint dstXoffset, GLint dstYoffset,
GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
GLint dstRowStride,
GLint width, GLint height,
GLint srcWidth, GLint srcHeight,
GLenum srcFormat, GLenum srcType,
const GLvoid *srcImage,
const struct gl_pixelstore_attrib *packing);
extern void
_mesa_unconvert_teximage(MesaIntTexFormat srcFormat,
GLint srcWidth, GLint srcHeight,
const GLvoid *srcImage, GLint srcRowStride,
GLint dstWidth, GLint dstHeight,
GLenum dstFormat, GLubyte *dstImage);
extern void
_mesa_set_teximage_component_sizes(MesaIntTexFormat mesaFormat,
struct gl_texture_image *texImage);
#endif
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