1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #ifndef _INTEL_TEX_OBJ_H
29 #define _INTEL_TEX_OBJ_H
31 #include "swrast/s_context.h"
34 struct intel_texture_object
36 struct gl_texture_object base
;
38 /* This is a mirror of base._MaxLevel, updated at validate time,
39 * except that we don't bother with the non-base levels for
40 * non-mipmapped textures.
42 unsigned int _MaxLevel
;
44 unsigned int validated_first_level
;
45 unsigned int validated_last_level
;
47 /* On validation any active images held in main memory or in other
48 * regions will be copied to this region and the old storage freed.
50 struct intel_mipmap_tree
*mt
;
53 * Set when mipmap trees in the texture images of this texture object
54 * might not all be the mipmap tree above.
61 * intel_texture_image is a subclass of swrast_texture_image because we
62 * sometimes fall back to using the swrast module for software rendering.
64 struct intel_texture_image
66 struct swrast_texture_image base
;
68 /* If intelImage->mt != NULL, image data is stored here.
69 * Else if intelImage->base.Buffer != NULL, image is stored there.
70 * Else there is no image data.
72 struct intel_mipmap_tree
*mt
;
75 static inline struct intel_texture_object
*
76 intel_texture_object(struct gl_texture_object
*obj
)
78 return (struct intel_texture_object
*) obj
;
81 static inline struct intel_texture_image
*
82 intel_texture_image(struct gl_texture_image
*img
)
84 return (struct intel_texture_image
*) img
;
87 #endif /* _INTEL_TEX_OBJ_H */