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 extern struct gl_texture_image *
71 _mesa_new_texture_image( struct gl_context *ctx );
75 _mesa_delete_texture_image( struct gl_context *ctx,
76 struct gl_texture_image *teximage );
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,
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);
94 _mesa_update_fbo_texture(struct gl_context *ctx,
95 struct gl_texture_object *texObj,
96 GLuint face, GLuint level);
99 _mesa_clear_texture_image(struct gl_context *ctx,
100 struct gl_texture_image *texImage);
103 extern struct gl_texture_object *
104 _mesa_select_tex_object(struct gl_context *ctx,
105 const struct gl_texture_unit *texUnit,
108 extern struct gl_texture_object *
109 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target);
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);
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);
124 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
128 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
129 GLint internalFormat, GLenum format, GLenum type,
130 GLint width, GLint height, GLint depth, GLint border);
134 _mesa_tex_target_to_face(GLenum target);
137 _mesa_get_texture_dimensions(GLenum target);
140 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
141 unsigned dimensions);
144 * Lock a texture for updating. See also _mesa_lock_context_textures().
147 _mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
149 _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
150 ctx->Shared->TextureStateStamp++;
155 _mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
158 _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
164 /** \name API entry point functions */
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 );
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 );
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 );
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 );
191 extern void GLAPIENTRY
192 _mesa_EGLImageTargetTexture2DOES( GLenum target, GLeglImageOES image );
194 extern void GLAPIENTRY
195 _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
197 GLenum format, GLenum type,
198 const GLvoid *pixels );
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 );
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 );
217 extern void GLAPIENTRY
218 _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
219 GLint x, GLint y, GLsizei width, GLint border );
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 );
228 extern void GLAPIENTRY
229 _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
230 GLint x, GLint y, GLsizei width );
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 );
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 );
246 extern void GLAPIENTRY
247 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
248 GLenum internalformat, GLsizei width,
249 GLint border, GLsizei imageSize,
252 extern void GLAPIENTRY
253 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
254 GLenum internalformat, GLsizei width,
255 GLsizei height, GLint border, GLsizei imageSize,
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);
265 #define _mesa_CompressedTexSubImage1DARB _mesa_CompressedTexSubImage1DAR
266 #define _mesa_CompressedTexSubImage2DARB _mesa_CompressedTexSubImage2DAR
267 #define _mesa_CompressedTexSubImage3DARB _mesa_CompressedTexSubImage3DAR
269 extern void GLAPIENTRY
270 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
271 GLsizei width, GLenum format,
272 GLsizei imageSize, const GLvoid *data);
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,
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);
287 extern void GLAPIENTRY
288 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer);