3 * Texture object management.
7 * Mesa 3-D graphics library
9 * Copyright (C) 1999-2006 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.
38 #include "samplerobj.h"
47 * \name Internal functions
51 extern struct gl_texture_object
*
52 _mesa_lookup_texture(struct gl_context
*ctx
, GLuint id
);
54 extern struct gl_texture_object
*
55 _mesa_lookup_texture_err(struct gl_context
*ctx
, GLuint id
, const char* func
);
57 extern struct gl_texture_object
*
58 _mesa_lookup_texture_locked(struct gl_context
*ctx
, GLuint id
);
60 extern struct gl_texture_object
*
61 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
);
63 extern struct gl_texture_object
*
64 _mesa_new_texture_object( struct gl_context
*ctx
, GLuint name
, GLenum target
);
67 _mesa_initialize_texture_object( struct gl_context
*ctx
,
68 struct gl_texture_object
*obj
,
69 GLuint name
, GLenum target
);
72 _mesa_tex_target_to_index(const struct gl_context
*ctx
, GLenum target
);
75 _mesa_delete_texture_object( struct gl_context
*ctx
,
76 struct gl_texture_object
*obj
);
79 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
80 const struct gl_texture_object
*src
);
83 _mesa_clear_texture_object(struct gl_context
*ctx
,
84 struct gl_texture_object
*obj
);
87 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
88 struct gl_texture_object
*tex
);
91 _mesa_reference_texobj(struct gl_texture_object
**ptr
,
92 struct gl_texture_object
*tex
)
95 _mesa_reference_texobj_(ptr
, tex
);
99 * Lock a texture for updating. See also _mesa_lock_context_textures().
102 _mesa_lock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
104 mtx_lock(&ctx
->Shared
->TexMutex
);
105 ctx
->Shared
->TextureStateStamp
++;
110 _mesa_unlock_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
113 mtx_unlock(&ctx
->Shared
->TexMutex
);
117 /** Is the texture "complete" with respect to the given sampler state? */
118 static inline GLboolean
119 _mesa_is_texture_complete(const struct gl_texture_object
*texObj
,
120 const struct gl_sampler_object
*sampler
)
123 * According to ARB_stencil_texturing, NEAREST_MIPMAP_NEAREST would
124 * be forbidden, however it is allowed per GL 4.5 rules, allow it
125 * even without GL 4.5 since it was a spec mistake.
127 if ((texObj
->_IsIntegerFormat
||
128 (texObj
->StencilSampling
&&
129 texObj
->Image
[0][texObj
->BaseLevel
]->_BaseFormat
== GL_DEPTH_STENCIL
)) &&
130 (sampler
->MagFilter
!= GL_NEAREST
||
131 (sampler
->MinFilter
!= GL_NEAREST
&&
132 sampler
->MinFilter
!= GL_NEAREST_MIPMAP_NEAREST
))) {
133 /* If the format is integer, only nearest filtering is allowed */
137 if (_mesa_is_mipmap_filter(sampler
))
138 return texObj
->_MipmapComplete
;
140 return texObj
->_BaseComplete
;
145 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
146 struct gl_texture_object
*obj
);
149 _mesa_cube_level_complete(const struct gl_texture_object
*texObj
,
153 _mesa_cube_complete(const struct gl_texture_object
*texObj
);
156 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
);
158 extern struct gl_texture_object
*
159 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
);
162 _mesa_total_texture_memory(struct gl_context
*ctx
);
165 _mesa_texture_base_format(const struct gl_texture_object
*texObj
);
168 _mesa_unlock_context_textures( struct gl_context
*ctx
);
171 _mesa_lock_context_textures( struct gl_context
*ctx
);
176 * \name API functions
181 _mesa_GenTextures_no_error(GLsizei n
, GLuint
*textures
);
183 extern void GLAPIENTRY
184 _mesa_GenTextures(GLsizei n
, GLuint
*textures
);
187 _mesa_CreateTextures_no_error(GLenum target
, GLsizei n
, GLuint
*textures
);
189 extern void GLAPIENTRY
190 _mesa_CreateTextures(GLenum target
, GLsizei n
, GLuint
*textures
);
193 _mesa_DeleteTextures_no_error(GLsizei n
, const GLuint
*textures
);
195 extern void GLAPIENTRY
196 _mesa_DeleteTextures( GLsizei n
, const GLuint
*textures
);
200 _mesa_BindTexture_no_error(GLenum target
, GLuint texture
);
202 extern void GLAPIENTRY
203 _mesa_BindTexture( GLenum target
, GLuint texture
);
206 _mesa_BindTextureUnit_no_error(GLuint unit
, GLuint texture
);
208 extern void GLAPIENTRY
209 _mesa_BindTextureUnit(GLuint unit
, GLuint texture
);
212 _mesa_BindTextures_no_error(GLuint first
, GLsizei count
,
213 const GLuint
*textures
);
215 extern void GLAPIENTRY
216 _mesa_BindTextures( GLuint first
, GLsizei count
, const GLuint
*textures
);
219 extern void GLAPIENTRY
220 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*textures
,
221 const GLclampf
*priorities
);
224 extern GLboolean GLAPIENTRY
225 _mesa_AreTexturesResident( GLsizei n
, const GLuint
*textures
,
226 GLboolean
*residences
);
228 extern GLboolean GLAPIENTRY
229 _mesa_IsTexture( GLuint texture
);
232 _mesa_InvalidateTexSubImage_no_error(GLuint texture
, GLint level
, GLint xoffset
,
233 GLint yoffset
, GLint zoffset
,
234 GLsizei width
, GLsizei height
,
237 extern void GLAPIENTRY
238 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
239 GLint yoffset
, GLint zoffset
, GLsizei width
,
240 GLsizei height
, GLsizei depth
);
242 _mesa_InvalidateTexImage_no_error(GLuint texture
, GLint level
);
244 extern void GLAPIENTRY
245 _mesa_InvalidateTexImage(GLuint texture
, GLint level
);