src/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 #ifdef __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 /** Is the given value one of the 6 cube faces? */
  43 static inline GLboolean
  44 _mesa_is_cube_face(GLenum target)
  45 {
  46    return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
  47            target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB);
  48 }
  49
  50 /** Is any of the dimensions of given texture equal to zero? */
  51 static inline GLboolean
  52 _mesa_is_zero_size_texture(const struct gl_texture_image *texImage)
  53 {
  54    return (texImage->Width == 0 ||
  55            texImage->Height == 0 ||
  56            texImage->Depth == 0);
  57 }
  58
  59 /** \name Internal functions */
  60 /*@{*/
  61
  62 extern GLint
  63 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat );
  64
  65
  66 extern GLboolean
  67 _mesa_is_proxy_texture(GLenum target);
  68
  69 extern GLenum
  70 _mesa_get_proxy_target(GLenum target);
  71
  72 extern struct gl_texture_image *
  73 _mesa_new_texture_image( struct gl_context *ctx );
  74
  75
  76 extern void
  77 _mesa_delete_texture_image( struct gl_context *ctx,
  78                             struct gl_texture_image *teximage );
  79
  80
  81 extern void
  82 _mesa_init_teximage_fields(struct gl_context *ctx,
  83                            struct gl_texture_image *img,
  84                            GLsizei width, GLsizei height, GLsizei depth,
  85                            GLint border, GLenum internalFormat,
  86                            gl_format format);
  87
  88
  89 extern gl_format
  90 _mesa_choose_texture_format(struct gl_context *ctx,
  91                             struct gl_texture_object *texObj,
  92                             GLenum target, GLint level,
  93                             GLenum internalFormat, GLenum format, GLenum type);
  94
  95 extern void
  96 _mesa_update_fbo_texture(struct gl_context *ctx,
  97                          struct gl_texture_object *texObj,
  98                          GLuint face, GLuint level);
  99
 100 extern void
 101 _mesa_clear_texture_image(struct gl_context *ctx,
 102                           struct gl_texture_image *texImage);
 103
 104
 105 extern struct gl_texture_object *
 106 _mesa_select_tex_object(struct gl_context *ctx,
 107                         const struct gl_texture_unit *texUnit,
 108                         GLenum target);
 109
 110 extern struct gl_texture_object *
 111 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target);
 112
 113
 114 extern struct gl_texture_image *
 115 _mesa_select_tex_image(struct gl_context *ctx,
 116                        const struct gl_texture_object *texObj,
 117                        GLenum target, GLint level);
 118
 119
 120 extern struct gl_texture_image *
 121 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
 122                     GLenum target, GLint level);
 123
 124
 125 extern GLint
 126 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
 127
 128
 129 extern GLboolean
 130 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
 131                           gl_format format,
 132                           GLint width, GLint height, GLint depth, GLint border);
 133
 134
 135 extern GLuint
 136 _mesa_tex_target_to_face(GLenum target);
 137
 138 extern GLint
 139 _mesa_get_texture_dimensions(GLenum target);
 140
 141
 142 extern GLboolean
 143 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
 144                                GLint level, GLint width, GLint height,
 145                                GLint depth, GLint border);
 146
 147 /**
 148  * Lock a texture for updating.  See also _mesa_lock_context_textures().
 149  */
 150 static inline void
 151 _mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 152 {
 153    _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
 154    ctx->Shared->TextureStateStamp++;
 155    (void) texObj;
 156 }
 157
 158 static inline void
 159 _mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 160 {
 161    (void) texObj;
 162    _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
 163 }
 164
 165 /*@}*/
 166
 167
 168 /** \name API entry point functions */
 169 /*@{*/
 170
 171 extern void GLAPIENTRY
 172 _mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
 173                   GLsizei width, GLint border,
 174                   GLenum format, GLenum type, const GLvoid *pixels );
 175
 176
 177 extern void GLAPIENTRY
 178 _mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
 179                   GLsizei width, GLsizei height, GLint border,
 180                   GLenum format, GLenum type, const GLvoid *pixels );
 181
 182
 183 extern void GLAPIENTRY
 184 _mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
 185                   GLsizei width, GLsizei height, GLsizei depth, GLint border,
 186                   GLenum format, GLenum type, const GLvoid *pixels );
 187
 188
 189 extern void GLAPIENTRY
 190 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
 191                      GLsizei width, GLsizei height, GLsizei depth,
 192                      GLint border, GLenum format, GLenum type,
 193                      const GLvoid *pixels );
 194
 195 extern void GLAPIENTRY
 196 _mesa_EGLImageTargetTexture2DOES( GLenum target, GLeglImageOES image );
 197
 198 extern void GLAPIENTRY
 199 _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
 200                      GLsizei width,
 201                      GLenum format, GLenum type,
 202                      const GLvoid *pixels );
 203
 204
 205 extern void GLAPIENTRY
 206 _mesa_TexSubImage2D( GLenum target, GLint level,
 207                      GLint xoffset, GLint yoffset,
 208                      GLsizei width, GLsizei height,
 209                      GLenum format, GLenum type,
 210                      const GLvoid *pixels );
 211
 212
 213 extern void GLAPIENTRY
 214 _mesa_TexSubImage3D( GLenum target, GLint level,
 215                      GLint xoffset, GLint yoffset, GLint zoffset,
 216                      GLsizei width, GLsizei height, GLsizei depth,
 217                      GLenum format, GLenum type,
 218                      const GLvoid *pixels );
 219
 220
 221 extern void GLAPIENTRY
 222 _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
 223                       GLint x, GLint y, GLsizei width, GLint border );
 224
 225
 226 extern void GLAPIENTRY
 227 _mesa_CopyTexImage2D( GLenum target, GLint level,
 228                       GLenum internalformat, GLint x, GLint y,
 229                       GLsizei width, GLsizei height, GLint border );
 230
 231
 232 extern void GLAPIENTRY
 233 _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
 234                          GLint x, GLint y, GLsizei width );
 235
 236
 237 extern void GLAPIENTRY
 238 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
 239                          GLint xoffset, GLint yoffset,
 240                          GLint x, GLint y, GLsizei width, GLsizei height );
 241
 242
 243 extern void GLAPIENTRY
 244 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
 245                          GLint xoffset, GLint yoffset, GLint zoffset,
 246                          GLint x, GLint y, GLsizei width, GLsizei height );
 247
 248
 249
 250 extern void GLAPIENTRY
 251 _mesa_CompressedTexImage1D(GLenum target, GLint level,
 252                               GLenum internalformat, GLsizei width,
 253                               GLint border, GLsizei imageSize,
 254                               const GLvoid *data);
 255
 256 extern void GLAPIENTRY
 257 _mesa_CompressedTexImage2D(GLenum target, GLint level,
 258                               GLenum internalformat, GLsizei width,
 259                               GLsizei height, GLint border, GLsizei imageSize,
 260                               const GLvoid *data);
 261
 262 extern void GLAPIENTRY
 263 _mesa_CompressedTexImage3D(GLenum target, GLint level,
 264                               GLenum internalformat, GLsizei width,
 265                               GLsizei height, GLsizei depth, GLint border,
 266                               GLsizei imageSize, const GLvoid *data);
 267
 268 #ifdef VMS
 269 #define _mesa_CompressedTexSubImage1D _mesa_CompressedTexSubImage1DAR
 270 #define _mesa_CompressedTexSubImage2D _mesa_CompressedTexSubImage2DAR
 271 #define _mesa_CompressedTexSubImage3D _mesa_CompressedTexSubImage3DAR
 272 #endif
 273 extern void GLAPIENTRY
 274 _mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
 275                                  GLsizei width, GLenum format,
 276                                  GLsizei imageSize, const GLvoid *data);
 277
 278 extern void GLAPIENTRY
 279 _mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
 280                                  GLint yoffset, GLsizei width, GLsizei height,
 281                                  GLenum format, GLsizei imageSize,
 282                                  const GLvoid *data);
 283
 284 extern void GLAPIENTRY
 285 _mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
 286                                  GLint yoffset, GLint zoffset, GLsizei width,
 287                                  GLsizei height, GLsizei depth, GLenum format,
 288                                  GLsizei imageSize, const GLvoid *data);
 289
 290
 291 extern void GLAPIENTRY
 292 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer);
 293
 294
 295 /*@}*/
 296
 297 #ifdef __cplusplus
 298 }
 299 #endif
 300
 301 #endif