src/mesa/main/texutil.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  3.3
   5  *
   6  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef TEXUTIL_H
  28 #define TEXUTIL_H
  29
  30
  31 #include "types.h"
  32
  33
  34
  35                            /* msb <------ TEXEL BITS -----------> lsb */
  36 typedef enum {             /* ---- ---- ---- ---- ---- ---- ---- ---- */
  37    MESA_I8,                /*                               IIII IIII */
  38    MESA_L8,                /*                               LLLL LLLL */
  39    MESA_A8,                /*                               AAAA AAAA */
  40    MESA_C8,                /*                               CCCC CCCC */
  41    MESA_A8_L8,             /*                     AAAA AAAA LLLL LLLL */
  42    MESA_R5_G6_B5,          /*                     RRRR RGGG GGGB BBBB */
  43    MESA_A4_R4_G4_B4,       /*                     AAAA RRRR GGGG BBBB */
  44    MESA_A1_R5_G5_B5,       /*                     ARRR RRGG GGGB BBBB */
  45    MESA_A8_R8_G8_B8        /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
  46 } MesaIntTexFormat;
  47
  48
  49
  50
  51 extern GLboolean
  52 _mesa_convert_teximage(MesaIntTexFormat dstFormat,
  53                        GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
  54                        GLint dstRowStride,
  55                        GLint srcWidth, GLint srcHeight,
  56                        GLenum srcFormat, GLenum srcType,
  57                        const GLvoid *srcImage,
  58                        const struct gl_pixelstore_attrib *packing);
  59
  60
  61
  62 extern GLboolean
  63 _mesa_convert_texsubimage(MesaIntTexFormat dstFormat,
  64                           GLint dstXoffset, GLint dstYoffset,
  65                           GLint dstWidth, GLint dstHeight, GLvoid *dstImage,
  66                           GLint dstRowStride,
  67                           GLint width, GLint height,
  68                           GLint srcWidth, GLint srcHeight,
  69                           GLenum srcFormat, GLenum srcType,
  70                           const GLvoid *srcImage,
  71                           const struct gl_pixelstore_attrib *packing);
  72
  73
  74 extern void
  75 _mesa_unconvert_teximage(MesaIntTexFormat srcFormat,
  76                          GLint srcWidth, GLint srcHeight,
  77                          const GLvoid *srcImage, GLint srcRowStride,
  78                          GLint dstWidth, GLint dstHeight,
  79                          GLenum dstFormat, GLubyte *dstImage);
  80
  81
  82 extern void
  83 _mesa_set_teximage_component_sizes(MesaIntTexFormat mesaFormat,
  84                                    struct gl_texture_image *texImage);
  85
  86
  87 #endif
  88