| 1 | /* $Id: image.h,v 1.1 2000-02-29 00:48:31 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Mesa 3-D graphics library
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| 5 | * Version: 3.1
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| 6 | *
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| 7 | * Copyright (C) 1999 Brian Paul All Rights Reserved.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included
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| 17 | * in all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 25 | */
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| 26 |
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| 27 |
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| 28 |
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| 29 |
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| 30 |
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| 31 | #ifndef IMAGE_H
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| 32 | #define IMAGE_H
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| 33 |
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| 34 |
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| 35 | #include "types.h"
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| 36 |
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| 37 |
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| 38 | extern void gl_flip_bytes( GLubyte *p, GLuint n );
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| 39 |
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| 40 |
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| 41 | extern void gl_swap2( GLushort *p, GLuint n );
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| 42 |
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| 43 | extern void gl_swap4( GLuint *p, GLuint n );
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| 44 |
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| 45 |
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| 46 | extern GLint gl_sizeof_type( GLenum type );
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| 47 |
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| 48 | extern GLint gl_sizeof_packed_type( GLenum type );
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| 49 |
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| 50 | extern GLint gl_components_in_format( GLenum format );
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| 51 |
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| 52 | extern GLint gl_bytes_per_pixel( GLenum format, GLenum type );
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| 53 |
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| 54 | extern GLboolean gl_is_legal_format_and_type( GLenum format, GLenum type );
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| 55 |
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| 56 |
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| 57 | extern GLvoid *
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| 58 | gl_pixel_addr_in_image( const struct gl_pixelstore_attrib *packing,
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| 59 | const GLvoid *image, GLsizei width,
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| 60 | GLsizei height, GLenum format, GLenum type,
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| 61 | GLint img, GLint row, GLint column );
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| 62 |
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| 63 |
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| 64 | extern struct gl_image *
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| 65 | gl_unpack_bitmap( GLcontext *ctx, GLsizei width, GLsizei height,
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| 66 | const GLubyte *bitmap,
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| 67 | const struct gl_pixelstore_attrib *packing );
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| 68 |
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| 69 |
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| 70 | extern void gl_unpack_polygon_stipple( const GLcontext *ctx,
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| 71 | const GLubyte *pattern,
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| 72 | GLuint dest[32] );
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| 73 |
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| 74 |
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| 75 | extern void gl_pack_polygon_stipple( const GLcontext *ctx,
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| 76 | const GLuint pattern[32],
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| 77 | GLubyte *dest );
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| 78 |
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| 79 |
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| 80 | extern struct gl_image *
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| 81 | gl_unpack_image( GLcontext *ctx, GLint width, GLint height,
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| 82 | GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
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| 83 | const struct gl_pixelstore_attrib *packing );
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| 84 |
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| 85 |
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| 86 |
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| 87 | struct gl_image *
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| 88 | gl_unpack_image3D( GLcontext *ctx, GLint width, GLint height,GLint depth,
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| 89 | GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
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| 90 | const struct gl_pixelstore_attrib *packing );
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| 91 |
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| 92 |
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| 93 | extern void
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| 94 | gl_pack_rgba_span( const GLcontext *ctx,
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| 95 | GLuint n, CONST GLubyte rgba[][4],
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| 96 | GLenum format, GLenum type, GLvoid *dest,
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| 97 | const struct gl_pixelstore_attrib *packing,
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| 98 | GLboolean applyTransferOps );
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| 99 |
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| 100 |
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| 101 | extern void gl_free_image( struct gl_image *image );
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| 102 |
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| 103 |
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| 104 | extern GLboolean gl_image_error_test( GLcontext *ctx,
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| 105 | const struct gl_image *image,
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| 106 | const char *msg );
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| 107 |
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| 108 |
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| 109 | /*
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| 110 | * New (3.3) functions
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| 111 | */
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| 112 |
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| 113 |
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| 114 | extern void
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| 115 | _mesa_unpack_ubyte_color_span( const GLcontext *ctx,
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| 116 | GLuint n, GLenum dstFormat, GLubyte dest[],
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| 117 | GLenum srcFormat, GLenum srcType,
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| 118 | const GLvoid *source,
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| 119 | const struct gl_pixelstore_attrib *unpacking,
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| 120 | GLboolean applyTransferOps );
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| 121 |
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| 122 |
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| 123 | extern void
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| 124 | _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
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| 125 | GLenum dstType, GLvoid *dest,
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| 126 | GLenum srcType, const GLvoid *source,
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| 127 | const struct gl_pixelstore_attrib *unpacking,
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| 128 | GLboolean applyTransferOps );
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| 129 |
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| 130 | extern void *
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| 131 | _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
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| 132 | GLenum format, GLenum type, const GLvoid *pixels,
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| 133 | const struct gl_pixelstore_attrib *unpack );
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| 134 |
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| 135 |
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| 136 | #endif
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