1 /*
2 **
3 ** Copyright 2009, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 ** http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17
18 #define LOG_TAG "GraphicBufferAllocator"
19
20 #include <cutils/log.h>
21
22 #include <utils/Singleton.h>
23 #include <utils/String8.h>
24
25 #include <ui/GraphicBufferAllocator.h>
26
27 namespace android {
28 // ---------------------------------------------------------------------------
29
30 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferAllocator )
31
32 Mutex GraphicBufferAllocator::sLock;
33 KeyedVector<buffer_handle_t,
34 GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList;
35
GraphicBufferAllocator()36 GraphicBufferAllocator::GraphicBufferAllocator()
37 : mAllocDev(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 gralloc_open(module, &mAllocDev);
44 }
45 }
46
~GraphicBufferAllocator()47 GraphicBufferAllocator::~GraphicBufferAllocator()
48 {
49 gralloc_close(mAllocDev);
50 }
51
dump(String8 & result) const52 void GraphicBufferAllocator::dump(String8& result) const
53 {
54 Mutex::Autolock _l(sLock);
55 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
56 size_t total = 0;
57 const size_t SIZE = 4096;
58 char buffer[SIZE];
59 snprintf(buffer, SIZE, "Allocated buffers:\n");
60 result.append(buffer);
61 const size_t c = list.size();
62 for (size_t i=0 ; i<c ; i++) {
63 const alloc_rec_t& rec(list.valueAt(i));
64 if (rec.size) {
65 snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u (%4u) x %4u | %8X | 0x%08x\n",
66 list.keyAt(i), rec.size/1024.0f,
67 rec.w, rec.s, rec.h, rec.format, rec.usage);
68 } else {
69 snprintf(buffer, SIZE, "%10p: unknown | %4u (%4u) x %4u | %8X | 0x%08x\n",
70 list.keyAt(i),
71 rec.w, rec.s, rec.h, rec.format, rec.usage);
72 }
73 result.append(buffer);
74 total += rec.size;
75 }
76 snprintf(buffer, SIZE, "Total allocated (estimate): %.2f KB\n", total/1024.0f);
77 result.append(buffer);
78 if (mAllocDev->common.version >= 1 && mAllocDev->dump) {
79 mAllocDev->dump(mAllocDev, buffer, SIZE);
80 result.append(buffer);
81 }
82 }
83
dumpToSystemLog()84 void GraphicBufferAllocator::dumpToSystemLog()
85 {
86 String8 s;
87 GraphicBufferAllocator::getInstance().dump(s);
88 LOGD("%s", s.string());
89 }
90
alloc(uint32_t w,uint32_t h,PixelFormat format,int usage,buffer_handle_t * handle,int32_t * stride)91 status_t GraphicBufferAllocator::alloc(uint32_t w, uint32_t h, PixelFormat format,
92 int usage, buffer_handle_t* handle, int32_t* stride)
93 {
94 // make sure to not allocate a N x 0 or 0 x N buffer, since this is
95 // allowed from an API stand-point allocate a 1x1 buffer instead.
96 if (!w || !h)
97 w = h = 1;
98
99 // we have a h/w allocator and h/w buffer is requested
100 status_t err;
101
102 err = mAllocDev->alloc(mAllocDev, w, h, format, usage, handle, stride);
103
104 LOGW_IF(err, "alloc(%u, %u, %d, %08x, ...) failed %d (%s)",
105 w, h, format, usage, err, strerror(-err));
106
107 if (err == NO_ERROR) {
108 Mutex::Autolock _l(sLock);
109 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
110 int bpp = bytesPerPixel(format);
111 if (bpp < 0) {
112 // probably a HAL custom format. in any case, we don't know
113 // what its pixel size is.
114 bpp = 0;
115 }
116 alloc_rec_t rec;
117 rec.w = w;
118 rec.h = h;
119 rec.s = *stride;
120 rec.format = format;
121 rec.usage = usage;
122 rec.size = h * stride[0] * bpp;
123 list.add(*handle, rec);
124 }
125
126 return err;
127 }
128
free(buffer_handle_t handle)129 status_t GraphicBufferAllocator::free(buffer_handle_t handle)
130 {
131 status_t err;
132
133 err = mAllocDev->free(mAllocDev, handle);
134
135 LOGW_IF(err, "free(...) failed %d (%s)", err, strerror(-err));
136 if (err == NO_ERROR) {
137 Mutex::Autolock _l(sLock);
138 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
139 list.removeItem(handle);
140 }
141
142 return err;
143 }
144
145 // ---------------------------------------------------------------------------
146 }; // namespace android
147