src/mesa/main/texstore.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   5  * Copyright (c) 2008 VMware, Inc.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 /**
  28  * \file texstore.h
  29  * Texture image storage routines.
  30  *
  31  * \author Brian Paul
  32  */
  33
  34
  35 #ifndef TEXSTORE_H
  36 #define TEXSTORE_H
  37
  38
  39 #include "mtypes.h"
  40 #include "formats.h"
  41
  42
  43 /**
  44  * This macro defines the (many) parameters to the texstore functions.
  45  * \param dims  either 1 or 2 or 3
  46  * \param baseInternalFormat  user-specified base internal format
  47  * \param dstFormat  destination Mesa texture format
  48  * \param dstX/Y/Zoffset  destination x/y/z offset (ala TexSubImage), in texels
  49  * \param dstRowStride  destination image row stride, in bytes
  50  * \param dstSlices  array of addresses of image slices (for 3D, array texture)
  51  * \param srcWidth/Height/Depth  source image size, in pixels
  52  * \param srcFormat  incoming image format
  53  * \param srcType  incoming image data type
  54  * \param srcAddr  source image address
  55  * \param srcPacking  source image packing parameters
  56  */
  57 #define TEXSTORE_PARAMS \
  58         struct gl_context *ctx, GLuint dims, \
  59         GLenum baseInternalFormat, \
  60         mesa_format dstFormat, \
  61         GLint dstRowStride, \
  62         GLubyte **dstSlices, \
  63         GLint srcWidth, GLint srcHeight, GLint srcDepth, \
  64         GLenum srcFormat, GLenum srcType, \
  65         const GLvoid *srcAddr, \
  66         const struct gl_pixelstore_attrib *srcPacking
  67
  68
  69 extern GLboolean
  70 _mesa_texstore(TEXSTORE_PARAMS);
  71
  72 extern GLboolean
  73 _mesa_texstore_needs_transfer_ops(struct gl_context *ctx,
  74                                   GLenum baseInternalFormat,
  75                                   mesa_format dstFormat);
  76
  77 extern GLboolean
  78 _mesa_texstore_can_use_memcpy(struct gl_context *ctx,
  79                               GLenum baseInternalFormat, mesa_format dstFormat,
  80                               GLenum srcFormat, GLenum srcType,
  81                               const struct gl_pixelstore_attrib *srcPacking);
  82
  83
  84 extern void
  85 _mesa_store_teximage(struct gl_context *ctx,
  86                      GLuint dims,
  87                      struct gl_texture_image *texImage,
  88                      GLenum format, GLenum type, const GLvoid *pixels,
  89                      const struct gl_pixelstore_attrib *packing);
  90
  91
  92 extern void
  93 _mesa_store_texsubimage(struct gl_context *ctx, GLuint dims,
  94                         struct gl_texture_image *texImage,
  95                         GLint xoffset, GLint yoffset, GLint zoffset,
  96                         GLint width, GLint height, GLint depth,
  97                         GLenum format, GLenum type, const GLvoid *pixels,
  98                         const struct gl_pixelstore_attrib *packing);
  99
 100
 101 extern void
 102 _mesa_store_cleartexsubimage(struct gl_context *ctx,
 103                              struct gl_texture_image *texImage,
 104                              GLint xoffset, GLint yoffset, GLint zoffset,
 105                              GLsizei width, GLsizei height, GLsizei depth,
 106                              const GLvoid *clearValue);
 107
 108 extern void
 109 _mesa_store_compressed_teximage(struct gl_context *ctx, GLuint dims,
 110                                 struct gl_texture_image *texImage,
 111                                 GLsizei imageSize, const GLvoid *data);
 112
 113
 114 extern void
 115 _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
 116                                    struct gl_texture_image *texImage,
 117                                    GLint xoffset, GLint yoffset, GLint zoffset,
 118                                    GLsizei width, GLsizei height, GLsizei depth,
 119                                    GLenum format,
 120                                    GLsizei imageSize, const GLvoid *data);
 121
 122
 123 struct compressed_pixelstore {
 124    int SkipBytes;
 125    int CopyBytesPerRow;
 126    int CopyRowsPerSlice;
 127    int TotalBytesPerRow;
 128    int TotalRowsPerSlice;
 129    int CopySlices;
 130 };
 131
 132
 133 extern void
 134 _mesa_compute_compressed_pixelstore(GLuint dims, mesa_format texFormat,
 135                                     GLsizei width, GLsizei height,
 136                                     GLsizei depth,
 137                                     const struct gl_pixelstore_attrib *packing,
 138                                     struct compressed_pixelstore *store);
 139
 140
 141 #endif