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
,
132 GLint width
, GLint height
, GLint depth
, GLint border
);
136 _mesa_tex_target_to_face(GLenum target
);
139 _mesa_get_texture_dimensions(GLenum target
);
143 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
144 GLint level
, GLint width
, GLint height
,
145 GLint depth
, GLint border
);
148 * Lock a texture for updating. See also _mesa_lock_context_textures().
151 _mesa_lock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
153 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
154 ctx
->Shared
->TextureStateStamp
++;
159 _mesa_unlock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
162 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
168 /** \name API entry point functions */
171 extern void GLAPIENTRY
172 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalformat
,
173 GLsizei width
, GLint border
,
174 GLenum format
, GLenum type
, const GLvoid
*pixels
);
177 extern void GLAPIENTRY
178 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalformat
,
179 GLsizei width
, GLsizei height
, GLint border
,
180 GLenum format
, GLenum type
, const GLvoid
*pixels
);
183 extern void GLAPIENTRY
184 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalformat
,
185 GLsizei width
, GLsizei height
, GLsizei depth
, GLint border
,
186 GLenum format
, GLenum type
, const GLvoid
*pixels
);
189 extern void GLAPIENTRY
190 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalformat
,
191 GLsizei width
, GLsizei height
, GLsizei depth
,
192 GLint border
, GLenum format
, GLenum type
,
193 const GLvoid
*pixels
);
195 extern void GLAPIENTRY
196 _mesa_EGLImageTargetTexture2DOES( GLenum target
, GLeglImageOES image
);
198 extern void GLAPIENTRY
199 _mesa_TexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
201 GLenum format
, GLenum type
,
202 const GLvoid
*pixels
);
205 extern void GLAPIENTRY
206 _mesa_TexSubImage2D( GLenum target
, GLint level
,
207 GLint xoffset
, GLint yoffset
,
208 GLsizei width
, GLsizei height
,
209 GLenum format
, GLenum type
,
210 const GLvoid
*pixels
);
213 extern void GLAPIENTRY
214 _mesa_TexSubImage3D( GLenum target
, GLint level
,
215 GLint xoffset
, GLint yoffset
, GLint zoffset
,
216 GLsizei width
, GLsizei height
, GLsizei depth
,
217 GLenum format
, GLenum type
,
218 const GLvoid
*pixels
);
221 extern void GLAPIENTRY
222 _mesa_CopyTexImage1D( GLenum target
, GLint level
, GLenum internalformat
,
223 GLint x
, GLint y
, GLsizei width
, GLint border
);
226 extern void GLAPIENTRY
227 _mesa_CopyTexImage2D( GLenum target
, GLint level
,
228 GLenum internalformat
, GLint x
, GLint y
,
229 GLsizei width
, GLsizei height
, GLint border
);
232 extern void GLAPIENTRY
233 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
, GLint xoffset
,
234 GLint x
, GLint y
, GLsizei width
);
237 extern void GLAPIENTRY
238 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
239 GLint xoffset
, GLint yoffset
,
240 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
243 extern void GLAPIENTRY
244 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
245 GLint xoffset
, GLint yoffset
, GLint zoffset
,
246 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
250 extern void GLAPIENTRY
251 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
252 GLenum internalformat
, GLsizei width
,
253 GLint border
, GLsizei imageSize
,
256 extern void GLAPIENTRY
257 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
258 GLenum internalformat
, GLsizei width
,
259 GLsizei height
, GLint border
, GLsizei imageSize
,
262 extern void GLAPIENTRY
263 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
264 GLenum internalformat
, GLsizei width
,
265 GLsizei height
, GLsizei depth
, GLint border
,
266 GLsizei imageSize
, const GLvoid
*data
);
269 #define _mesa_CompressedTexSubImage1D _mesa_CompressedTexSubImage1DAR
270 #define _mesa_CompressedTexSubImage2D _mesa_CompressedTexSubImage2DAR
271 #define _mesa_CompressedTexSubImage3D _mesa_CompressedTexSubImage3DAR
273 extern void GLAPIENTRY
274 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
275 GLsizei width
, GLenum format
,
276 GLsizei imageSize
, const GLvoid
*data
);
278 extern void GLAPIENTRY
279 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
280 GLint yoffset
, GLsizei width
, GLsizei height
,
281 GLenum format
, GLsizei imageSize
,
284 extern void GLAPIENTRY
285 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
286 GLint yoffset
, GLint zoffset
, GLsizei width
,
287 GLsizei height
, GLsizei depth
, GLenum format
,
288 GLsizei imageSize
, const GLvoid
*data
);
291 extern void GLAPIENTRY
292 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
);