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/* $Id: image.h,v 1.2 1999/11/03 17:27:05 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.1
*
* Copyright (C) 1999 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 IMAGE_H
#define IMAGE_H
#include "types.h"
extern void gl_flip_bytes( GLubyte *p, GLuint n );
extern void gl_swap2( GLushort *p, GLuint n );
extern void gl_swap4( GLuint *p, GLuint n );
extern GLint gl_sizeof_type( GLenum type );
extern GLint gl_sizeof_packed_type( GLenum type );
extern GLint gl_components_in_format( GLenum format );
extern GLint gl_bytes_per_pixel( GLenum format, GLenum type );
extern GLboolean gl_is_legal_format_and_type( GLenum format, GLenum type );
extern GLvoid *
gl_pixel_addr_in_image( const struct gl_pixelstore_attrib *packing,
const GLvoid *image, GLsizei width,
GLsizei height, GLenum format, GLenum type,
GLint img, GLint row, GLint column );
extern struct gl_image *
gl_unpack_bitmap( GLcontext *ctx, GLsizei width, GLsizei height,
const GLubyte *bitmap,
const struct gl_pixelstore_attrib *packing );
extern void gl_unpack_polygon_stipple( const GLcontext *ctx,
const GLubyte *pattern,
GLuint dest[32] );
extern void gl_pack_polygon_stipple( const GLcontext *ctx,
const GLuint pattern[32],
GLubyte *dest );
extern struct gl_image *
gl_unpack_image( GLcontext *ctx, GLint width, GLint height,
GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing );
struct gl_image *
gl_unpack_image3D( GLcontext *ctx, GLint width, GLint height,GLint depth,
GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing );
extern void
gl_pack_rgba_span( const GLcontext *ctx,
GLuint n, CONST GLubyte rgba[][4],
GLenum format, GLenum type, GLvoid *dest,
const struct gl_pixelstore_attrib *packing,
GLboolean applyTransferOps );
extern void gl_free_image( struct gl_image *image );
extern GLboolean gl_image_error_test( GLcontext *ctx,
const struct gl_image *image,
const char *msg );
/*
* New (3.3) functions
*/
extern void
_mesa_unpack_ubyte_color_span( const GLcontext *ctx,
GLuint n, GLenum dstFormat, GLubyte dest[],
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
const struct gl_pixelstore_attrib *unpacking,
GLboolean applyTransferOps );
extern void
_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
GLenum dstType, GLvoid *dest,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *unpacking,
GLboolean applyTransferOps );
extern void *
_mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *unpack );
#endif
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