util: remove LIST_IS_EMPTY macro
[mesa.git] / src / gallium / auxiliary / util / u_dirty_surfaces.h
1 /**************************************************************************
2 *
3 * Copyright 2010 Luca Barbieri
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14 * next paragraph) shall be included in all copies or substantial
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26
27 #ifndef U_DIRTY_SURFACES_H_
28 #define U_DIRTY_SURFACES_H_
29
30 #include "pipe/p_state.h"
31
32 #include "util/list.h"
33 #include "util/u_math.h"
34
35 struct pipe_context;
36
37 typedef void (*util_dirty_surface_flush_t) (struct pipe_context *, struct pipe_surface *);
38
39 struct util_dirty_surfaces
40 {
41 struct list_head dirty_list;
42 };
43
44 struct util_dirty_surface
45 {
46 struct pipe_surface base;
47 struct list_head dirty_list;
48 };
49
50 static inline void
51 util_dirty_surfaces_init(struct util_dirty_surfaces *ds)
52 {
53 list_inithead(&ds->dirty_list);
54 }
55
56 static inline void
57 util_dirty_surfaces_use_for_sampling(struct pipe_context *pipe, struct util_dirty_surfaces *dss, util_dirty_surface_flush_t flush)
58 {
59 struct list_head *p, *next;
60 for(p = dss->dirty_list.next; p != &dss->dirty_list; p = next)
61 {
62 struct util_dirty_surface *ds = LIST_ENTRY(struct util_dirty_surface, p, dirty_list);
63 next = p->next;
64
65 flush(pipe, &ds->base);
66 }
67 }
68
69 static inline void
70 util_dirty_surfaces_use_levels_for_sampling(struct pipe_context *pipe, struct util_dirty_surfaces *dss, unsigned first, unsigned last, util_dirty_surface_flush_t flush)
71 {
72 struct list_head *p, *next;
73 if(first > last)
74 return;
75 for(p = dss->dirty_list.next; p != &dss->dirty_list; p = next)
76 {
77 struct util_dirty_surface *ds = LIST_ENTRY(struct util_dirty_surface, p, dirty_list);
78 next = p->next;
79
80 if(ds->base.u.tex.level >= first && ds->base.u.tex.level <= last)
81 flush(pipe, &ds->base);
82 }
83 }
84
85 static inline void
86 util_dirty_surfaces_use_for_sampling_with(struct pipe_context *pipe, struct util_dirty_surfaces *dss, struct pipe_sampler_view *psv, struct pipe_sampler_state *pss, util_dirty_surface_flush_t flush)
87 {
88 if(!list_is_empty(&dss->dirty_list))
89 util_dirty_surfaces_use_levels_for_sampling(pipe, dss, (unsigned)pss->min_lod + psv->u.tex.first_level,
90 MIN2((unsigned)ceilf(pss->max_lod) + psv->u.tex.first_level, psv->u.tex.last_level), flush);
91 }
92
93 static inline void
94 util_dirty_surface_init(struct util_dirty_surface *ds)
95 {
96 list_inithead(&ds->dirty_list);
97 }
98
99 static inline boolean
100 util_dirty_surface_is_dirty(struct util_dirty_surface *ds)
101 {
102 return !list_is_empty(&ds->dirty_list);
103 }
104
105 static inline void
106 util_dirty_surface_set_dirty(struct util_dirty_surfaces *dss, struct util_dirty_surface *ds)
107 {
108 if(list_is_empty(&ds->dirty_list))
109 list_addtail(&ds->dirty_list, &dss->dirty_list);
110 }
111
112 static inline void
113 util_dirty_surface_set_clean(struct util_dirty_surfaces *dss, struct util_dirty_surface *ds)
114 {
115 if(!list_is_empty(&ds->dirty_list))
116 list_delinit(&ds->dirty_list);
117 }
118
119 #endif