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
  70 extern struct gl_texture_image *
  71 _mesa_new_texture_image( struct gl_context *ctx );
  72
  73
  74 extern void
  75 _mesa_delete_texture_image( struct gl_context *ctx,
  76                             struct gl_texture_image *teximage );
  77
  78
  79 extern void
  80 _mesa_init_teximage_fields(struct gl_context *ctx,
  81                            struct gl_texture_image *img,
  82                            GLsizei width, GLsizei height, GLsizei depth,
  83                            GLint border, GLenum internalFormat,
  84                            gl_format format);
  85
  86
  87 extern gl_format
  88 _mesa_choose_texture_format(struct gl_context *ctx,
  89                             struct gl_texture_object *texObj,
  90                             GLenum target, GLint level,
  91                             GLenum internalFormat, GLenum format, GLenum type);
  92
  93 extern void
  94 _mesa_update_fbo_texture(struct gl_context *ctx,
  95                          struct gl_texture_object *texObj,
  96                          GLuint face, GLuint level);
  97
  98 extern void
  99 _mesa_clear_texture_image(struct gl_context *ctx,
 100                           struct gl_texture_image *texImage);
 101
 102
 103 extern struct gl_texture_object *
 104 _mesa_select_tex_object(struct gl_context *ctx,
 105                         const struct gl_texture_unit *texUnit,
 106                         GLenum target);
 107
 108 extern struct gl_texture_object *
 109 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target);
 110
 111
 112 extern struct gl_texture_image *
 113 _mesa_select_tex_image(struct gl_context *ctx,
 114                        const struct gl_texture_object *texObj,
 115                        GLenum target, GLint level);
 116
 117
 118 extern struct gl_texture_image *
 119 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
 120                     GLenum target, GLint level);
 121
 122
 123 extern struct gl_texture_image *
 124 _mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level);
 125
 126
 127 extern GLint
 128 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
 129
 130
 131 extern GLboolean
 132 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
 133                          GLint internalFormat, GLenum format, GLenum type,
 134                          GLint width, GLint height, GLint depth, GLint border);
 135
 136
 137 extern GLuint
 138 _mesa_tex_target_to_face(GLenum target);
 139
 140 extern GLint
 141 _mesa_get_texture_dimensions(GLenum target);
 142
 143 /**
 144  * Lock a texture for updating.  See also _mesa_lock_context_textures().
 145  */
 146 static inline void
 147 _mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 148 {
 149    _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
 150    ctx->Shared->TextureStateStamp++;
 151    (void) texObj;
 152 }
 153
 154 static inline void
 155 _mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
 156 {
 157    (void) texObj;
 158    _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
 159 }
 160
 161 /*@}*/
 162
 163
 164 /** \name API entry point functions */
 165 /*@{*/
 166
 167 extern void GLAPIENTRY
 168 _mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
 169                   GLsizei width, GLint border,
 170                   GLenum format, GLenum type, const GLvoid *pixels );
 171
 172
 173 extern void GLAPIENTRY
 174 _mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
 175                   GLsizei width, GLsizei height, GLint border,
 176                   GLenum format, GLenum type, const GLvoid *pixels );
 177
 178
 179 extern void GLAPIENTRY
 180 _mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
 181                   GLsizei width, GLsizei height, GLsizei depth, GLint border,
 182                   GLenum format, GLenum type, const GLvoid *pixels );
 183
 184
 185 extern void GLAPIENTRY
 186 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
 187                      GLsizei width, GLsizei height, GLsizei depth,
 188                      GLint border, GLenum format, GLenum type,
 189                      const GLvoid *pixels );
 190
 191 extern void GLAPIENTRY
 192 _mesa_EGLImageTargetTexture2DOES( GLenum target, GLeglImageOES image );
 193
 194 extern void GLAPIENTRY
 195 _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
 196                      GLsizei width,
 197                      GLenum format, GLenum type,
 198                      const GLvoid *pixels );
 199
 200
 201 extern void GLAPIENTRY
 202 _mesa_TexSubImage2D( GLenum target, GLint level,
 203                      GLint xoffset, GLint yoffset,
 204                      GLsizei width, GLsizei height,
 205                      GLenum format, GLenum type,
 206                      const GLvoid *pixels );
 207
 208
 209 extern void GLAPIENTRY
 210 _mesa_TexSubImage3D( GLenum target, GLint level,
 211                      GLint xoffset, GLint yoffset, GLint zoffset,
 212                      GLsizei width, GLsizei height, GLsizei depth,
 213                      GLenum format, GLenum type,
 214                      const GLvoid *pixels );
 215
 216
 217 extern void GLAPIENTRY
 218 _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
 219                       GLint x, GLint y, GLsizei width, GLint border );
 220
 221
 222 extern void GLAPIENTRY
 223 _mesa_CopyTexImage2D( GLenum target, GLint level,
 224                       GLenum internalformat, GLint x, GLint y,
 225                       GLsizei width, GLsizei height, GLint border );
 226
 227
 228 extern void GLAPIENTRY
 229 _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
 230                          GLint x, GLint y, GLsizei width );
 231
 232
 233 extern void GLAPIENTRY
 234 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
 235                          GLint xoffset, GLint yoffset,
 236                          GLint x, GLint y, GLsizei width, GLsizei height );
 237
 238
 239 extern void GLAPIENTRY
 240 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
 241                          GLint xoffset, GLint yoffset, GLint zoffset,
 242                          GLint x, GLint y, GLsizei width, GLsizei height );
 243
 244
 245
 246 extern void GLAPIENTRY
 247 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
 248                               GLenum internalformat, GLsizei width,
 249                               GLint border, GLsizei imageSize,
 250                               const GLvoid *data);
 251
 252 extern void GLAPIENTRY
 253 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
 254                               GLenum internalformat, GLsizei width,
 255                               GLsizei height, GLint border, GLsizei imageSize,
 256                               const GLvoid *data);
 257
 258 extern void GLAPIENTRY
 259 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
 260                               GLenum internalformat, GLsizei width,
 261                               GLsizei height, GLsizei depth, GLint border,
 262                               GLsizei imageSize, const GLvoid *data);
 263
 264 #ifdef VMS
 265 #define _mesa_CompressedTexSubImage1DARB _mesa_CompressedTexSubImage1DAR
 266 #define _mesa_CompressedTexSubImage2DARB _mesa_CompressedTexSubImage2DAR
 267 #define _mesa_CompressedTexSubImage3DARB _mesa_CompressedTexSubImage3DAR
 268 #endif
 269 extern void GLAPIENTRY
 270 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
 271                                  GLsizei width, GLenum format,
 272                                  GLsizei imageSize, const GLvoid *data);
 273
 274 extern void GLAPIENTRY
 275 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
 276                                  GLint yoffset, GLsizei width, GLsizei height,
 277                                  GLenum format, GLsizei imageSize,
 278                                  const GLvoid *data);
 279
 280 extern void GLAPIENTRY
 281 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
 282                                  GLint yoffset, GLint zoffset, GLsizei width,
 283                                  GLsizei height, GLsizei depth, GLenum format,
 284                                  GLsizei imageSize, const GLvoid *data);
 285
 286
 287 extern void GLAPIENTRY
 288 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer);
 289
 290
 291 /*@}*/
 292
 293 #ifdef __cplusplus
 294 }
 295 #endif
 296
 297 #endif