dll/opengl/mesa/main/teximage.h

   1 /**
   2  * \file teximage.h
   3  * Texture images manipulation functions.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  6.5
   9  *
  10  * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef TEXIMAGE_H
  32 #define TEXIMAGE_H
  33
  34
  35 #include "mtypes.h"
  36 #include "formats.h"
  37
  38
  39 /** Is the given value one of the 6 cube faces? */
  40 static inline GLboolean
  41 _mesa_is_cube_face(GLenum target)
  42 {
  43    return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
  44            target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB);
  45 }
  46
  47 /** Is any of the dimensions of given texture equal to zero? */
  48 static inline GLboolean
  49 _mesa_is_zero_size_texture(const struct gl_texture_image *texImage)
  50 {
  51    return (texImage->Width == 0 ||
  52            texImage->Height == 0 ||
  53            texImage->Depth == 0);
  54 }
  55
  56 /** \name Internal functions */
  57 /*@{*/
  58
  59 extern GLint
  60 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat );
  61
  62
  63 extern GLboolean
  64 _mesa_is_proxy_texture(GLenum target);
  65
  66
  67 extern struct gl_texture_image *
  68 _mesa_new_texture_image( struct gl_context *ctx );
  69
  70
  71 extern void
  72 _mesa_delete_texture_image( struct gl_context *ctx,
  73                             struct gl_texture_image *teximage );
  74
  75
  76 extern void
  77 _mesa_init_teximage_fields(struct gl_context *ctx,
  78                            struct gl_texture_image *img,
  79                            GLsizei width, GLsizei height, GLsizei depth,
  80                            GLint border, GLenum internalFormat,
  81                            gl_format format);
  82
  83
  84 extern gl_format
  85 _mesa_choose_texture_format(struct gl_context *ctx,
  86                             struct gl_texture_object *texObj,
  87                             GLenum target, GLint level,
  88                             GLenum internalFormat, GLenum format, GLenum type);
  89
  90 extern void
  91 _mesa_clear_texture_image(struct gl_context *ctx,
  92                           struct gl_texture_image *texImage);
  93
  94
  95 extern struct gl_texture_object *
  96 _mesa_select_tex_object(struct gl_context *ctx,
  97                         GLenum target);
  98
  99
 100 extern struct gl_texture_image *
 101 _mesa_select_tex_image(struct gl_context *ctx,
 102                        const struct gl_texture_object *texObj,
 103                        GLenum target, GLint level);
 104
 105
 106 extern struct gl_texture_image *
 107 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
 108                     GLenum target, GLint level);
 109
 110
 111 extern struct gl_texture_image *
 112 _mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level);
 113
 114
 115 extern GLint
 116 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
 117
 118
 119 extern GLboolean
 120 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
 121                          GLint internalFormat, GLenum format, GLenum type,
 122                          GLint width, GLint height, GLint depth, GLint border);
 123
 124
 125 extern GLuint
 126 _mesa_tex_target_to_face(GLenum target);
 127
 128 extern GLint
 129 _mesa_get_texture_dimensions(GLenum target);
 130
 131 /**
 132  * Lock a texture for updating.  See also _mesa_lock_context_textures().
 133  */
 134 static inline void
 135 _mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 136 {
 137    _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
 138    ctx->Shared->TextureStateStamp++;
 139    (void) texObj;
 140 }
 141
 142 static inline void
 143 _mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 144 {
 145    (void) texObj;
 146    _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
 147 }
 148
 149 /*@}*/
 150
 151
 152 /** \name API entry point functions */
 153 /*@{*/
 154
 155 extern void GLAPIENTRY
 156 _mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
 157                   GLsizei width, GLint border,
 158                   GLenum format, GLenum type, const GLvoid *pixels );
 159
 160
 161 extern void GLAPIENTRY
 162 _mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
 163                   GLsizei width, GLsizei height, GLint border,
 164                   GLenum format, GLenum type, const GLvoid *pixels );
 165
 166
 167 extern void GLAPIENTRY
 168 _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
 169                      GLsizei width,
 170                      GLenum format, GLenum type,
 171                      const GLvoid *pixels );
 172
 173
 174 extern void GLAPIENTRY
 175 _mesa_TexSubImage2D( GLenum target, GLint level,
 176                      GLint xoffset, GLint yoffset,
 177                      GLsizei width, GLsizei height,
 178                      GLenum format, GLenum type,
 179                      const GLvoid *pixels );
 180
 181
 182 extern void GLAPIENTRY
 183 _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
 184                       GLint x, GLint y, GLsizei width, GLint border );
 185
 186
 187 extern void GLAPIENTRY
 188 _mesa_CopyTexImage2D( GLenum target, GLint level,
 189                       GLenum internalformat, GLint x, GLint y,
 190                       GLsizei width, GLsizei height, GLint border );
 191
 192
 193 extern void GLAPIENTRY
 194 _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
 195                          GLint x, GLint y, GLsizei width );
 196
 197
 198 extern void GLAPIENTRY
 199 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
 200                          GLint xoffset, GLint yoffset,
 201                          GLint x, GLint y, GLsizei width, GLsizei height );
 202
 203 /*@}*/
 204
 205 #endif