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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
26 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
27 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
28 * OTHER DEALINGS IN THE SOFTWARE.
43 /** Is the given value one of the 6 cube faces? */
44 static inline GLboolean
45 _mesa_is_cube_face(GLenum target
)
47 return (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
48 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
);
51 /** Is any of the dimensions of given texture equal to zero? */
52 static inline GLboolean
53 _mesa_is_zero_size_texture(const struct gl_texture_image
*texImage
)
55 return (texImage
->Width
== 0 ||
56 texImage
->Height
== 0 ||
57 texImage
->Depth
== 0);
60 /** \name Internal functions */
64 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
);
68 _mesa_is_proxy_texture(GLenum target
);
71 _mesa_get_proxy_target(GLenum target
);
73 extern struct gl_texture_image
*
74 _mesa_new_texture_image( struct gl_context
*ctx
);
78 _mesa_delete_texture_image( struct gl_context
*ctx
,
79 struct gl_texture_image
*teximage
);
83 _mesa_init_teximage_fields(struct gl_context
*ctx
,
84 struct gl_texture_image
*img
,
85 GLsizei width
, GLsizei height
, GLsizei depth
,
86 GLint border
, GLenum internalFormat
,
91 _mesa_choose_texture_format(struct gl_context
*ctx
,
92 struct gl_texture_object
*texObj
,
93 GLenum target
, GLint level
,
94 GLenum internalFormat
, GLenum format
, GLenum type
);
97 _mesa_update_fbo_texture(struct gl_context
*ctx
,
98 struct gl_texture_object
*texObj
,
99 GLuint face
, GLuint level
);
102 _mesa_clear_texture_image(struct gl_context
*ctx
,
103 struct gl_texture_image
*texImage
);
106 extern struct gl_texture_object
*
107 _mesa_select_tex_object(struct gl_context
*ctx
,
108 const struct gl_texture_unit
*texUnit
,
111 extern struct gl_texture_object
*
112 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
);
115 extern struct gl_texture_image
*
116 _mesa_select_tex_image(struct gl_context
*ctx
,
117 const struct gl_texture_object
*texObj
,
118 GLenum target
, GLint level
);
121 extern struct gl_texture_image
*
122 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
123 GLenum target
, GLint level
);
127 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
);
131 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
133 GLint width
, GLint height
, GLint depth
, GLint border
);
137 _mesa_tex_target_to_face(GLenum target
);
140 _mesa_get_texture_dimensions(GLenum target
);
143 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
147 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
148 GLint level
, GLint width
, GLint height
,
149 GLint depth
, GLint border
);
152 * Lock a texture for updating. See also _mesa_lock_context_textures().
155 _mesa_lock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
157 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
158 ctx
->Shared
->TextureStateStamp
++;
163 _mesa_unlock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
166 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
172 /** \name API entry point functions */
175 extern void GLAPIENTRY
176 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalformat
,
177 GLsizei width
, GLint border
,
178 GLenum format
, GLenum type
, const GLvoid
*pixels
);
181 extern void GLAPIENTRY
182 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalformat
,
183 GLsizei width
, GLsizei height
, GLint border
,
184 GLenum format
, GLenum type
, const GLvoid
*pixels
);
187 extern void GLAPIENTRY
188 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalformat
,
189 GLsizei width
, GLsizei height
, GLsizei depth
, GLint border
,
190 GLenum format
, GLenum type
, const GLvoid
*pixels
);
193 extern void GLAPIENTRY
194 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalformat
,
195 GLsizei width
, GLsizei height
, GLsizei depth
,
196 GLint border
, GLenum format
, GLenum type
,
197 const GLvoid
*pixels
);
199 extern void GLAPIENTRY
200 _mesa_EGLImageTargetTexture2DOES( GLenum target
, GLeglImageOES image
);
202 extern void GLAPIENTRY
203 _mesa_TexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
205 GLenum format
, GLenum type
,
206 const GLvoid
*pixels
);
209 extern void GLAPIENTRY
210 _mesa_TexSubImage2D( GLenum target
, GLint level
,
211 GLint xoffset
, GLint yoffset
,
212 GLsizei width
, GLsizei height
,
213 GLenum format
, GLenum type
,
214 const GLvoid
*pixels
);
217 extern void GLAPIENTRY
218 _mesa_TexSubImage3D( GLenum target
, GLint level
,
219 GLint xoffset
, GLint yoffset
, GLint zoffset
,
220 GLsizei width
, GLsizei height
, GLsizei depth
,
221 GLenum format
, GLenum type
,
222 const GLvoid
*pixels
);
225 extern void GLAPIENTRY
226 _mesa_CopyTexImage1D( GLenum target
, GLint level
, GLenum internalformat
,
227 GLint x
, GLint y
, GLsizei width
, GLint border
);
230 extern void GLAPIENTRY
231 _mesa_CopyTexImage2D( GLenum target
, GLint level
,
232 GLenum internalformat
, GLint x
, GLint y
,
233 GLsizei width
, GLsizei height
, GLint border
);
236 extern void GLAPIENTRY
237 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
238 GLint x
, GLint y
, GLsizei width
);
241 extern void GLAPIENTRY
242 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
243 GLint xoffset
, GLint yoffset
,
244 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
247 extern void GLAPIENTRY
248 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
249 GLint xoffset
, GLint yoffset
, GLint zoffset
,
250 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
254 extern void GLAPIENTRY
255 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
256 GLenum internalformat
, GLsizei width
,
257 GLint border
, GLsizei imageSize
,
260 extern void GLAPIENTRY
261 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
262 GLenum internalformat
, GLsizei width
,
263 GLsizei height
, GLint border
, GLsizei imageSize
,
266 extern void GLAPIENTRY
267 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
268 GLenum internalformat
, GLsizei width
,
269 GLsizei height
, GLsizei depth
, GLint border
,
270 GLsizei imageSize
, const GLvoid
*data
);
272 extern void GLAPIENTRY
273 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
274 GLsizei width
, GLenum format
,
275 GLsizei imageSize
, const GLvoid
*data
);
277 extern void GLAPIENTRY
278 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
279 GLint yoffset
, GLsizei width
, GLsizei height
,
280 GLenum format
, GLsizei imageSize
,
283 extern void GLAPIENTRY
284 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
285 GLint yoffset
, GLint zoffset
, GLsizei width
,
286 GLsizei height
, GLsizei depth
, GLenum format
,
287 GLsizei imageSize
, const GLvoid
*data
);
290 extern void GLAPIENTRY
291 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
);
293 extern void GLAPIENTRY
294 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
295 GLintptr offset
, GLsizeiptr size
);
298 extern void GLAPIENTRY
299 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
300 GLint internalformat
, GLsizei width
,
301 GLsizei height
, GLboolean fixedsamplelocations
);
303 extern void GLAPIENTRY
304 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
305 GLint internalformat
, GLsizei width
,
306 GLsizei height
, GLsizei depth
,
307 GLboolean fixedsamplelocations
);
309 extern void GLAPIENTRY
310 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
311 GLenum internalformat
, GLsizei width
,
312 GLsizei height
, GLboolean fixedsamplelocations
);
314 extern void GLAPIENTRY
315 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
316 GLenum internalformat
, GLsizei width
,
317 GLsizei height
, GLsizei depth
,
318 GLboolean fixedsamplelocations
);