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_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
146 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
147 GLint level
, GLint width
, GLint height
,
148 GLint depth
, GLint border
);
151 _mesa_validate_texbuffer_format(const struct gl_context
*ctx
,
152 GLenum internalFormat
);
155 * Lock a texture for updating. See also _mesa_lock_context_textures().
158 _mesa_lock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
160 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
161 ctx
->Shared
->TextureStateStamp
++;
166 _mesa_unlock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
169 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
175 /** \name API entry point functions */
178 extern void GLAPIENTRY
179 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalformat
,
180 GLsizei width
, GLint border
,
181 GLenum format
, GLenum type
, const GLvoid
*pixels
);
184 extern void GLAPIENTRY
185 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalformat
,
186 GLsizei width
, GLsizei height
, GLint border
,
187 GLenum format
, GLenum type
, const GLvoid
*pixels
);
190 extern void GLAPIENTRY
191 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalformat
,
192 GLsizei width
, GLsizei height
, GLsizei depth
, GLint border
,
193 GLenum format
, GLenum type
, const GLvoid
*pixels
);
196 extern void GLAPIENTRY
197 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalformat
,
198 GLsizei width
, GLsizei height
, GLsizei depth
,
199 GLint border
, GLenum format
, GLenum type
,
200 const GLvoid
*pixels
);
202 extern void GLAPIENTRY
203 _mesa_EGLImageTargetTexture2DOES( GLenum target
, GLeglImageOES image
);
205 extern void GLAPIENTRY
206 _mesa_TexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
208 GLenum format
, GLenum type
,
209 const GLvoid
*pixels
);
212 extern void GLAPIENTRY
213 _mesa_TexSubImage2D( GLenum target
, GLint level
,
214 GLint xoffset
, GLint yoffset
,
215 GLsizei width
, GLsizei height
,
216 GLenum format
, GLenum type
,
217 const GLvoid
*pixels
);
220 extern void GLAPIENTRY
221 _mesa_TexSubImage3D( GLenum target
, GLint level
,
222 GLint xoffset
, GLint yoffset
, GLint zoffset
,
223 GLsizei width
, GLsizei height
, GLsizei depth
,
224 GLenum format
, GLenum type
,
225 const GLvoid
*pixels
);
228 extern void GLAPIENTRY
229 _mesa_CopyTexImage1D( GLenum target
, GLint level
, GLenum internalformat
,
230 GLint x
, GLint y
, GLsizei width
, GLint border
);
233 extern void GLAPIENTRY
234 _mesa_CopyTexImage2D( GLenum target
, GLint level
,
235 GLenum internalformat
, GLint x
, GLint y
,
236 GLsizei width
, GLsizei height
, GLint border
);
239 extern void GLAPIENTRY
240 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
241 GLint x
, GLint y
, GLsizei width
);
244 extern void GLAPIENTRY
245 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
246 GLint xoffset
, GLint yoffset
,
247 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
250 extern void GLAPIENTRY
251 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
252 GLint xoffset
, GLint yoffset
, GLint zoffset
,
253 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
257 extern void GLAPIENTRY
258 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
259 GLenum internalformat
, GLsizei width
,
260 GLint border
, GLsizei imageSize
,
263 extern void GLAPIENTRY
264 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
265 GLenum internalformat
, GLsizei width
,
266 GLsizei height
, GLint border
, GLsizei imageSize
,
269 extern void GLAPIENTRY
270 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
271 GLenum internalformat
, GLsizei width
,
272 GLsizei height
, GLsizei depth
, GLint border
,
273 GLsizei imageSize
, const GLvoid
*data
);
275 extern void GLAPIENTRY
276 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
277 GLsizei width
, GLenum format
,
278 GLsizei imageSize
, const GLvoid
*data
);
280 extern void GLAPIENTRY
281 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
282 GLint yoffset
, GLsizei width
, GLsizei height
,
283 GLenum format
, GLsizei imageSize
,
286 extern void GLAPIENTRY
287 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
288 GLint yoffset
, GLint zoffset
, GLsizei width
,
289 GLsizei height
, GLsizei depth
, GLenum format
,
290 GLsizei imageSize
, const GLvoid
*data
);
293 extern void GLAPIENTRY
294 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
);
296 extern void GLAPIENTRY
297 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
298 GLintptr offset
, GLsizeiptr size
);
301 extern void GLAPIENTRY
302 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
303 GLenum internalformat
, GLsizei width
,
304 GLsizei height
, GLboolean fixedsamplelocations
);
306 extern void GLAPIENTRY
307 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
308 GLenum internalformat
, GLsizei width
,
309 GLsizei height
, GLsizei depth
,
310 GLboolean fixedsamplelocations
);
312 extern void GLAPIENTRY
313 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
314 GLenum internalformat
, GLsizei width
,
315 GLsizei height
, GLboolean fixedsamplelocations
);
317 extern void GLAPIENTRY
318 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
319 GLenum internalformat
, GLsizei width
,
320 GLsizei height
, GLsizei depth
,
321 GLboolean fixedsamplelocations
);