1 /* $Id: texutil.h,v 1.4 2000/08/29 23:30:53 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 * NOTE: "FF" means fill with byte value 0xff
39 /* msb <------ TEXEL BITS -----------> lsb */
40 typedef enum { /* ---- ---- ---- ---- ---- ---- ---- ---- */
41 MESA_I8
, /* IIII IIII */
42 MESA_L8
, /* LLLL LLLL */
43 MESA_A8
, /* AAAA AAAA */
44 MESA_C8
, /* CCCC CCCC */
45 MESA_A8_L8
, /* AAAA AAAA LLLL LLLL */
46 MESA_R5_G6_B5
, /* RRRR RGGG GGGB BBBB */
47 MESA_A4_R4_G4_B4
, /* AAAA RRRR GGGG BBBB */
48 MESA_A1_R5_G5_B5
, /* ARRR RRGG GGGB BBBB */
49 MESA_A8_R8_G8_B8
, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
50 MESA_FF_R8_G8_B8
/* FFFF FFFF RRRR RRRR GGGG GGGG BBBB BBBB */
57 _mesa_convert_teximage(MesaIntTexFormat dstFormat
,
58 GLint dstWidth
, GLint dstHeight
, GLvoid
*dstImage
,
60 GLint srcWidth
, GLint srcHeight
,
61 GLenum srcFormat
, GLenum srcType
,
62 const GLvoid
*srcImage
,
63 const struct gl_pixelstore_attrib
*packing
);
68 _mesa_convert_texsubimage(MesaIntTexFormat dstFormat
,
69 GLint dstXoffset
, GLint dstYoffset
,
70 GLint dstWidth
, GLint dstHeight
, GLvoid
*dstImage
,
72 GLint width
, GLint height
,
73 GLint srcWidth
, GLint srcHeight
,
74 GLenum srcFormat
, GLenum srcType
,
75 const GLvoid
*srcImage
,
76 const struct gl_pixelstore_attrib
*packing
);
80 _mesa_unconvert_teximage(MesaIntTexFormat srcFormat
,
81 GLint srcWidth
, GLint srcHeight
,
82 const GLvoid
*srcImage
, GLint srcRowStride
,
83 GLint dstWidth
, GLint dstHeight
,
84 GLenum dstFormat
, GLubyte
*dstImage
);
88 _mesa_set_teximage_component_sizes(MesaIntTexFormat mesaFormat
,
89 struct gl_texture_image
*texImage
);