1/*
2 * Copyright 2003 VMware, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26#ifndef _INTEL_TEX_OBJ_H
27#define _INTEL_TEX_OBJ_H
28
29#include "swrast/s_context.h"
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35struct intel_texture_object
36{
37   struct gl_texture_object base;
38
39   /* This is a mirror of base._MaxLevel, updated at validate time,
40    * except that we don't bother with the non-base levels for
41    * non-mipmapped textures.
42    */
43   unsigned int _MaxLevel;
44
45   unsigned int validated_first_level;
46   unsigned int validated_last_level;
47
48   /* The miptree of pixel data for the texture (if !needs_validate).  After
49    * validation, the images will also have references to the same mt.
50    */
51   struct intel_mipmap_tree *mt;
52
53   /**
54    * Set when mipmap trees in the texture images of this texture object
55    * might not all be the mipmap tree above.
56    */
57   bool needs_validate;
58
59   /* Mesa format for the validated texture object. For non-views this
60    * will always be the same as texObj->Image[0][0].TexFormat. For views, it
61    * may differ since the mt is shared across views with differing formats.
62    */
63   mesa_format _Format;
64
65   const struct intel_image_format *planar_format;
66};
67
68
69/**
70 * intel_texture_image is a subclass of swrast_texture_image because we
71 * sometimes fall back to using the swrast module for software rendering.
72 */
73struct intel_texture_image
74{
75   struct swrast_texture_image base;
76
77   /* If intelImage->mt != NULL, image data is stored here.
78    * Else if intelImage->base.Buffer != NULL, image is stored there.
79    * Else there is no image data.
80    */
81   struct intel_mipmap_tree *mt;
82};
83
84static inline struct intel_texture_object *
85intel_texture_object(struct gl_texture_object *obj)
86{
87   return (struct intel_texture_object *) obj;
88}
89
90static inline struct intel_texture_image *
91intel_texture_image(struct gl_texture_image *img)
92{
93   return (struct intel_texture_image *) img;
94}
95
96#ifdef __cplusplus
97}
98#endif
99
100#endif /* _INTEL_TEX_OBJ_H */
101