3 * Texture images manipulation functions.
7 * Mesa 3-D graphics library
9 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27 * 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
,
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_tex_target_is_layered(GLenum target
);
145 _mesa_get_texture_layers(const struct gl_texture_object
*texObj
, GLint level
);
148 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
152 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
153 GLint level
, GLint width
, GLint height
,
154 GLint depth
, GLint border
);
157 _mesa_validate_texbuffer_format(const struct gl_context
*ctx
,
158 GLenum internalFormat
);
162 _mesa_legal_texture_base_format_for_target(struct gl_context
*ctx
,
164 GLenum internalFormat
,
169 * Lock a texture for updating. See also _mesa_lock_context_textures().
172 _mesa_lock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
174 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
175 ctx
->Shared
->TextureStateStamp
++;
180 _mesa_unlock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
183 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
189 /** \name API entry point functions */
192 extern void GLAPIENTRY
193 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalformat
,
194 GLsizei width
, GLint border
,
195 GLenum format
, GLenum type
, const GLvoid
*pixels
);
198 extern void GLAPIENTRY
199 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalformat
,
200 GLsizei width
, GLsizei height
, GLint border
,
201 GLenum format
, GLenum type
, const GLvoid
*pixels
);
204 extern void GLAPIENTRY
205 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalformat
,
206 GLsizei width
, GLsizei height
, GLsizei depth
, GLint border
,
207 GLenum format
, GLenum type
, const GLvoid
*pixels
);
210 extern void GLAPIENTRY
211 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalformat
,
212 GLsizei width
, GLsizei height
, GLsizei depth
,
213 GLint border
, GLenum format
, GLenum type
,
214 const GLvoid
*pixels
);
216 extern void GLAPIENTRY
217 _mesa_EGLImageTargetTexture2DOES( GLenum target
, GLeglImageOES image
);
219 extern void GLAPIENTRY
220 _mesa_TexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
222 GLenum format
, GLenum type
,
223 const GLvoid
*pixels
);
226 extern void GLAPIENTRY
227 _mesa_TexSubImage2D( GLenum target
, GLint level
,
228 GLint xoffset
, GLint yoffset
,
229 GLsizei width
, GLsizei height
,
230 GLenum format
, GLenum type
,
231 const GLvoid
*pixels
);
234 extern void GLAPIENTRY
235 _mesa_TexSubImage3D( GLenum target
, GLint level
,
236 GLint xoffset
, GLint yoffset
, GLint zoffset
,
237 GLsizei width
, GLsizei height
, GLsizei depth
,
238 GLenum format
, GLenum type
,
239 const GLvoid
*pixels
);
242 extern void GLAPIENTRY
243 _mesa_CopyTexImage1D( GLenum target
, GLint level
, GLenum internalformat
,
244 GLint x
, GLint y
, GLsizei width
, GLint border
);
247 extern void GLAPIENTRY
248 _mesa_CopyTexImage2D( GLenum target
, GLint level
,
249 GLenum internalformat
, GLint x
, GLint y
,
250 GLsizei width
, GLsizei height
, GLint border
);
253 extern void GLAPIENTRY
254 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
255 GLint x
, GLint y
, GLsizei width
);
258 extern void GLAPIENTRY
259 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
260 GLint xoffset
, GLint yoffset
,
261 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
264 extern void GLAPIENTRY
265 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
266 GLint xoffset
, GLint yoffset
, GLint zoffset
,
267 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
271 extern void GLAPIENTRY
272 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
273 GLenum internalformat
, GLsizei width
,
274 GLint border
, GLsizei imageSize
,
277 extern void GLAPIENTRY
278 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
279 GLenum internalformat
, GLsizei width
,
280 GLsizei height
, GLint border
, GLsizei imageSize
,
283 extern void GLAPIENTRY
284 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
285 GLenum internalformat
, GLsizei width
,
286 GLsizei height
, GLsizei depth
, GLint border
,
287 GLsizei imageSize
, const GLvoid
*data
);
289 extern void GLAPIENTRY
290 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
291 GLsizei width
, GLenum format
,
292 GLsizei imageSize
, const GLvoid
*data
);
294 extern void GLAPIENTRY
295 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
296 GLint yoffset
, GLsizei width
, GLsizei height
,
297 GLenum format
, GLsizei imageSize
,
300 extern void GLAPIENTRY
301 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
302 GLint yoffset
, GLint zoffset
, GLsizei width
,
303 GLsizei height
, GLsizei depth
, GLenum format
,
304 GLsizei imageSize
, const GLvoid
*data
);
307 extern void GLAPIENTRY
308 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
);
310 extern void GLAPIENTRY
311 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
312 GLintptr offset
, GLsizeiptr size
);
315 extern void GLAPIENTRY
316 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
317 GLenum internalformat
, GLsizei width
,
318 GLsizei height
, GLboolean fixedsamplelocations
);
320 extern void GLAPIENTRY
321 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
322 GLenum internalformat
, GLsizei width
,
323 GLsizei height
, GLsizei depth
,
324 GLboolean fixedsamplelocations
);
326 extern void GLAPIENTRY
327 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
328 GLenum internalformat
, GLsizei width
,
329 GLsizei height
, GLboolean fixedsamplelocations
);
331 extern void GLAPIENTRY
332 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
333 GLenum internalformat
, GLsizei width
,
334 GLsizei height
, GLsizei depth
,
335 GLboolean fixedsamplelocations
);