src/mesa/main/textureview.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Courtney Goeltzenleuchter <courtney@lunarg.com>
  26  */
  27
  28
  29 #ifndef TEXTUREVIEW_H
  30 #define TEXTUREVIEW_H
  31
  32 bool
  33 _mesa_texture_view_compatible_format(const struct gl_context *ctx,
  34                                      GLenum origInternalFormat,
  35                                      GLenum newInternalFormat);
  36
  37 /**
  38  * Lookup format view class based on internalformat
  39  * \return VIEW_CLASS if internalformat found in table, false otherwise.
  40  */
  41 GLenum
  42 _mesa_texture_view_lookup_view_class(const struct gl_context *ctx,
  43                                      GLenum internalformat);
  44
  45 void GLAPIENTRY
  46 _mesa_TextureView_no_error(GLuint texture, GLenum target, GLuint origtexture,
  47                            GLenum internalformat,
  48                            GLuint minlevel, GLuint numlevels,
  49                            GLuint minlayer, GLuint numlayers);
  50
  51 extern void GLAPIENTRY
  52 _mesa_TextureView(GLuint texture, GLenum target, GLuint origtexture,
  53                   GLenum internalformat,
  54                   GLuint minlevel, GLuint numlevels,
  55                   GLuint minlayer, GLuint numlayers);
  56
  57 extern void
  58 _mesa_set_texture_view_state(struct gl_context *ctx,
  59                              struct gl_texture_object *texObj,
  60                              GLenum target, GLuint levels);
  61
  62 #endif /* TEXTUREVIEW_H */