1/*
2Copyright (c) 2012, Broadcom Europe Ltd
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in the
11 documentation and/or other materials provided with the distribution.
12 * Neither the name of the copyright holder nor the
13 names of its contributors may be used to endorse or promote products
14 derived from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*/
27
28static void callback_destroy_context(KHRN_POINTER_MAP_T *map, uint32_t key, void *value, void *data)
29{
30 EGL_CONTEXT_T *context = (EGL_CONTEXT_T *)value;
31
32 UNUSED(map);
33 UNUSED(data);
34 UNUSED_NDEBUG(key);
35
36 vcos_assert( context != NULL );
37 vcos_assert((uintptr_t)key == (uintptr_t)context->name);
38
39 vcos_assert(!context->is_destroyed);
40
41 context->is_destroyed = true;
42 egl_context_maybe_free(context);
43}
44
45/*
46 void callback_destroy_surface(KHRN_POINTER_MAP_T *map, uint32_t key, void *value, void *data)
47
48 Implementation notes:
49
50 Passed as a callback to khrn_pointer_map_iterate.
51
52 Preconditions:
53
54 Thread owns EGL lock
55
56 map is the CLIENT_PROCESS_STATE_T.surfaces
57 value is a pointer to a valid EGL_SURFACE_T
58 key is a key in map
59 map[key] == value
60
61 Postconditions:
62
63 Does not alter map
64 value is a dead pointer (i.e. either a pointer to a freed thing or something we don't hold a reference to)
65
66 Invariants preserved:
67
68 (EGL_SURFACE_IS_DESTROYED)
69
70 Invariants used:
71
72 (CLIENT_PROCESS_STATE_SURFACES)
73 (EGL_SURFACE_BINDING_COUNT)
74*/
75
76static void callback_destroy_surface(KHRN_POINTER_MAP_T *map, uint32_t key, void *value, void *data)
77{
78 EGL_SURFACE_T *surface = (EGL_SURFACE_T *)value;
79
80 UNUSED(map);
81 UNUSED(data);
82 UNUSED_NDEBUG(key);
83
84 vcos_assert( surface != NULL );
85 vcos_assert((uintptr_t)key == (uintptr_t)surface->name);
86
87 surface->is_destroyed = true;
88 egl_surface_maybe_free(surface);
89}
90
91/*
92 CLIENT_PROCESS_STATE_T *client_egl_get_process_state(CLIENT_THREAD_STATE_T *thread, EGLDisplay dpy, EGLBoolean check_inited)
93
94 Returns the process-global CLIENT_PROCESS_STATE_T object. If check_inited is true, also insists that the process state
95 is inited.
96
97 Implementation notes:
98
99 -
100
101 Preconditions:
102
103 thread is a valid pointer
104 Thread owns EGL lock
105
106 Postconditions:
107
108 The following conditions cause error to assume the specified value
109
110 EGL_BAD_DISPLAY An EGLDisplay argument does not name a valid EGLDisplay
111 EGL_NOT_INITIALIZED check_inited is true and EGL is not initialized for the specified display.
112
113 if more than one condition holds, the first error is generated.
114
115 If error, NULL is returned. Otherwise a pointer is returned which is valid for the lifetime of the process.
116
117 Invariants preserved:
118
119 -
120
121 Invariants used:
122
123 -
124*/
125
126CLIENT_PROCESS_STATE_T *client_egl_get_process_state(CLIENT_THREAD_STATE_T *thread, EGLDisplay dpy, EGLBoolean check_inited)
127{
128 if ((size_t)dpy == 1) {
129 CLIENT_PROCESS_STATE_T *process = CLIENT_GET_PROCESS_STATE();
130
131 if (check_inited && !process->inited) {
132 thread->error = EGL_NOT_INITIALIZED;
133 return NULL;
134 } else
135 return process;
136 } else {
137 thread->error = EGL_BAD_DISPLAY;
138 return NULL;
139 }
140}
141