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 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
20
21 #include <cutils/log.h>
22
23 #include <utils/Singleton.h>
24 #include <utils/String8.h>
25 #include <utils/Trace.h>
26
27 #include <ui/GraphicBufferAllocator.h>
28
29 namespace android {
30 // ---------------------------------------------------------------------------
31
32 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferAllocator )
33
34 Mutex GraphicBufferAllocator::sLock;
35 KeyedVector<buffer_handle_t,
36 GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList;
37
GraphicBufferAllocator()38 GraphicBufferAllocator::GraphicBufferAllocator()
39 : mAllocDev(0)
40 {
41 hw_module_t const* module;
42 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
43 ALOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID);
44 if (err == 0) {
45 gralloc_open(module, &mAllocDev);
46 }
47 }
48
~GraphicBufferAllocator()49 GraphicBufferAllocator::~GraphicBufferAllocator()
50 {
51 gralloc_close(mAllocDev);
52 }
53
dump(String8 & result) const54 void GraphicBufferAllocator::dump(String8& result) const
55 {
56 Mutex::Autolock _l(sLock);
57 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
58 size_t total = 0;
59 const size_t SIZE = 4096;
60 char buffer[SIZE];
61 snprintf(buffer, SIZE, "Allocated buffers:\n");
62 result.append(buffer);
63 const size_t c = list.size();
64 for (size_t i=0 ; i<c ; i++) {
65 const alloc_rec_t& rec(list.valueAt(i));
66 if (rec.size) {
67 snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u (%4u) x %4u | %8X | 0x%08x\n",
68 list.keyAt(i), rec.size/1024.0f,
69 rec.width, rec.stride, rec.height, rec.format, rec.usage);
70 } else {
71 snprintf(buffer, SIZE, "%10p: unknown | %4u (%4u) x %4u | %8X | 0x%08x\n",
72 list.keyAt(i),
73 rec.width, rec.stride, rec.height, rec.format, rec.usage);
74 }
75 result.append(buffer);
76 total += rec.size;
77 }
78 snprintf(buffer, SIZE, "Total allocated (estimate): %.2f KB\n", total/1024.0f);
79 result.append(buffer);
80 if (mAllocDev->common.version >= 1 && mAllocDev->dump) {
81 mAllocDev->dump(mAllocDev, buffer, SIZE);
82 result.append(buffer);
83 }
84 }
85
dumpToSystemLog()86 void GraphicBufferAllocator::dumpToSystemLog()
87 {
88 String8 s;
89 GraphicBufferAllocator::getInstance().dump(s);
90 ALOGD("%s", s.string());
91 }
92
alloc(uint32_t width,uint32_t height,PixelFormat format,uint32_t usage,buffer_handle_t * handle,uint32_t * stride)93 status_t GraphicBufferAllocator::alloc(uint32_t width, uint32_t height,
94 PixelFormat format, uint32_t usage, buffer_handle_t* handle,
95 uint32_t* stride)
96 {
97 ATRACE_CALL();
98
99 // make sure to not allocate a N x 0 or 0 x N buffer, since this is
100 // allowed from an API stand-point allocate a 1x1 buffer instead.
101 if (!width || !height)
102 width = height = 1;
103
104 // we have a h/w allocator and h/w buffer is requested
105 status_t err;
106
107 // Filter out any usage bits that should not be passed to the gralloc module
108 usage &= GRALLOC_USAGE_ALLOC_MASK;
109
110 int outStride = 0;
111 err = mAllocDev->alloc(mAllocDev, static_cast<int>(width),
112 static_cast<int>(height), format, static_cast<int>(usage), handle,
113 &outStride);
114 *stride = static_cast<uint32_t>(outStride);
115
116 ALOGW_IF(err, "alloc(%u, %u, %d, %08x, ...) failed %d (%s)",
117 width, height, format, usage, err, strerror(-err));
118
119 if (err == NO_ERROR) {
120 Mutex::Autolock _l(sLock);
121 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
122 uint32_t bpp = bytesPerPixel(format);
123 alloc_rec_t rec;
124 rec.width = width;
125 rec.height = height;
126 rec.stride = *stride;
127 rec.format = format;
128 rec.usage = usage;
129 rec.size = static_cast<size_t>(height * (*stride) * bpp);
130 list.add(*handle, rec);
131 }
132
133 return err;
134 }
135
free(buffer_handle_t handle)136 status_t GraphicBufferAllocator::free(buffer_handle_t handle)
137 {
138 ATRACE_CALL();
139 status_t err;
140
141 err = mAllocDev->free(mAllocDev, handle);
142
143 ALOGW_IF(err, "free(...) failed %d (%s)", err, strerror(-err));
144 if (err == NO_ERROR) {
145 Mutex::Autolock _l(sLock);
146 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
147 list.removeItem(handle);
148 }
149
150 return err;
151 }
152
153 // ---------------------------------------------------------------------------
154 }; // namespace android
155