src/mesa/main/texutil.h

   1 /* $Id: texutil.h,v 1.5 2000/10/29 18:12:15 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   8  *
   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:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  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.
  25  */
  26
  27
  28 #ifndef TEXUTIL_H
  29 #define TEXUTIL_H
  30
  31
  32 #include "types.h"
  33
  34
  35
  36 /*
  37  * NOTE: "FF" means fill with byte value 0xff
  38  */
  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 */
  51 } MesaIntTexFormat;
  52
  53
  54
  55
  56 extern GLboolean
  57 _mesa_convert_teximage(MesaIntTexFormat dstFormat,
  58                        GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
  59                        GLint dstRowStride,
  60                        GLint srcWidth, GLint srcHeight,
  61                        GLenum srcFormat, GLenum srcType,
  62                        const GLvoid *srcImage,
  63                        const struct gl_pixelstore_attrib *packing);
  64
  65
  66
  67 extern GLboolean
  68 _mesa_convert_texsubimage(MesaIntTexFormat dstFormat,
  69                           GLint dstXoffset, GLint dstYoffset,
  70                           GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
  71                           GLint dstRowStride,
  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);
  77
  78
  79 extern void
  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, GLchan *dstImage);
  85
  86
  87 extern void
  88 _mesa_set_teximage_component_sizes(MesaIntTexFormat mesaFormat,
  89                                    struct gl_texture_image *texImage);
  90
  91
  92 #endif
  93