3 * Texture images manipulation functions.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
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:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
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.
42 /** Is the given value one of the 6 cube faces? */
43 static inline GLboolean
44 _mesa_is_cube_face(GLenum target)
46 return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
47 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB);
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)
54 return (texImage->Width == 0 ||
55 texImage->Height == 0 ||
56 texImage->Depth == 0);
59 /** \name Internal functions */
63 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat );
67 _mesa_is_proxy_texture(GLenum target);
70 _mesa_get_proxy_target(GLenum target);
72 extern struct gl_texture_image *
73 _mesa_new_texture_image( struct gl_context *ctx );
77 _mesa_delete_texture_image( struct gl_context *ctx,
78 struct gl_texture_image *teximage );
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,
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);
96 _mesa_update_fbo_texture(struct gl_context *ctx,
97 struct gl_texture_object *texObj,
98 GLuint face, GLuint level);
101 _mesa_clear_texture_image(struct gl_context *ctx,
102 struct gl_texture_image *texImage);
105 extern struct gl_texture_object *
106 _mesa_select_tex_object(struct gl_context *ctx,
107 const struct gl_texture_unit *texUnit,
110 extern struct gl_texture_object *
111 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target);
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);
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);
126 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
130 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
131 GLint internalFormat, GLenum format, GLenum type,
132 GLint width, GLint height, GLint depth, GLint border);
136 _mesa_tex_target_to_face(GLenum target);
139 _mesa_get_texture_dimensions(GLenum target);
142 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
143 unsigned dimensions);
146 * Lock a texture for updating. See also _mesa_lock_context_textures().
149 _mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
151 _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
152 ctx->Shared->TextureStateStamp++;
157 _mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
160 _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
166 /** \name API entry point functions */
169 extern void GLAPIENTRY
170 _mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
171 GLsizei width, GLint border,
172 GLenum format, GLenum type, const GLvoid *pixels );
175 extern void GLAPIENTRY
176 _mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
177 GLsizei width, GLsizei height, GLint border,
178 GLenum format, GLenum type, const GLvoid *pixels );
181 extern void GLAPIENTRY
182 _mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
183 GLsizei width, GLsizei height, GLsizei depth, GLint border,
184 GLenum format, GLenum type, const GLvoid *pixels );
187 extern void GLAPIENTRY
188 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
189 GLsizei width, GLsizei height, GLsizei depth,
190 GLint border, GLenum format, GLenum type,
191 const GLvoid *pixels );
193 extern void GLAPIENTRY
194 _mesa_EGLImageTargetTexture2DOES( GLenum target, GLeglImageOES image );
196 extern void GLAPIENTRY
197 _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
199 GLenum format, GLenum type,
200 const GLvoid *pixels );
203 extern void GLAPIENTRY
204 _mesa_TexSubImage2D( GLenum target, GLint level,
205 GLint xoffset, GLint yoffset,
206 GLsizei width, GLsizei height,
207 GLenum format, GLenum type,
208 const GLvoid *pixels );
211 extern void GLAPIENTRY
212 _mesa_TexSubImage3D( GLenum target, GLint level,
213 GLint xoffset, GLint yoffset, GLint zoffset,
214 GLsizei width, GLsizei height, GLsizei depth,
215 GLenum format, GLenum type,
216 const GLvoid *pixels );
219 extern void GLAPIENTRY
220 _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
221 GLint x, GLint y, GLsizei width, GLint border );
224 extern void GLAPIENTRY
225 _mesa_CopyTexImage2D( GLenum target, GLint level,
226 GLenum internalformat, GLint x, GLint y,
227 GLsizei width, GLsizei height, GLint border );
230 extern void GLAPIENTRY
231 _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
232 GLint x, GLint y, GLsizei width );
235 extern void GLAPIENTRY
236 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
237 GLint xoffset, GLint yoffset,
238 GLint x, GLint y, GLsizei width, GLsizei height );
241 extern void GLAPIENTRY
242 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
243 GLint xoffset, GLint yoffset, GLint zoffset,
244 GLint x, GLint y, GLsizei width, GLsizei height );
248 extern void GLAPIENTRY
249 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
250 GLenum internalformat, GLsizei width,
251 GLint border, GLsizei imageSize,
254 extern void GLAPIENTRY
255 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
256 GLenum internalformat, GLsizei width,
257 GLsizei height, GLint border, GLsizei imageSize,
260 extern void GLAPIENTRY
261 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
262 GLenum internalformat, GLsizei width,
263 GLsizei height, GLsizei depth, GLint border,
264 GLsizei imageSize, const GLvoid *data);
267 #define _mesa_CompressedTexSubImage1DARB _mesa_CompressedTexSubImage1DAR
268 #define _mesa_CompressedTexSubImage2DARB _mesa_CompressedTexSubImage2DAR
269 #define _mesa_CompressedTexSubImage3DARB _mesa_CompressedTexSubImage3DAR
271 extern void GLAPIENTRY
272 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
273 GLsizei width, GLenum format,
274 GLsizei imageSize, const GLvoid *data);
276 extern void GLAPIENTRY
277 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
278 GLint yoffset, GLsizei width, GLsizei height,
279 GLenum format, GLsizei imageSize,
282 extern void GLAPIENTRY
283 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
284 GLint yoffset, GLint zoffset, GLsizei width,
285 GLsizei height, GLsizei depth, GLenum format,
286 GLsizei imageSize, const GLvoid *data);
289 extern void GLAPIENTRY
290 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer);