1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "GraphicBufferMapper"
18
19 #include <stdint.h>
20 #include <errno.h>
21
22 #include <utils/Errors.h>
23 #include <utils/Log.h>
24
25 #include <ui/GraphicBufferMapper.h>
26 #include <ui/Rect.h>
27
28 #include <hardware/gralloc.h>
29
30
31 namespace android {
32 // ---------------------------------------------------------------------------
33
ANDROID_SINGLETON_STATIC_INSTANCE(GraphicBufferMapper)34 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper )
35
36 GraphicBufferMapper::GraphicBufferMapper()
37 : mAllocMod(0)
38 {
39 hw_module_t const* module;
40 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
41 LOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID);
42 if (err == 0) {
43 mAllocMod = (gralloc_module_t const *)module;
44 }
45 }
46
registerBuffer(buffer_handle_t handle)47 status_t GraphicBufferMapper::registerBuffer(buffer_handle_t handle)
48 {
49 status_t err;
50
51 err = mAllocMod->registerBuffer(mAllocMod, handle);
52
53 LOGW_IF(err, "registerBuffer(%p) failed %d (%s)",
54 handle, err, strerror(-err));
55 return err;
56 }
57
unregisterBuffer(buffer_handle_t handle)58 status_t GraphicBufferMapper::unregisterBuffer(buffer_handle_t handle)
59 {
60 status_t err;
61
62 err = mAllocMod->unregisterBuffer(mAllocMod, handle);
63
64 LOGW_IF(err, "unregisterBuffer(%p) failed %d (%s)",
65 handle, err, strerror(-err));
66 return err;
67 }
68
lock(buffer_handle_t handle,int usage,const Rect & bounds,void ** vaddr)69 status_t GraphicBufferMapper::lock(buffer_handle_t handle,
70 int usage, const Rect& bounds, void** vaddr)
71 {
72 status_t err;
73
74 err = mAllocMod->lock(mAllocMod, handle, usage,
75 bounds.left, bounds.top, bounds.width(), bounds.height(),
76 vaddr);
77
78 LOGW_IF(err, "lock(...) failed %d (%s)", err, strerror(-err));
79 return err;
80 }
81
unlock(buffer_handle_t handle)82 status_t GraphicBufferMapper::unlock(buffer_handle_t handle)
83 {
84 status_t err;
85
86 err = mAllocMod->unlock(mAllocMod, handle);
87
88 LOGW_IF(err, "unlock(...) failed %d (%s)", err, strerror(-err));
89 return err;
90 }
91
92 // ---------------------------------------------------------------------------
93 }; // namespace android
94