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 #include <private/ui/sw_gralloc_handle.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 LOGE_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 = 512;
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 snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u (%4u) x %4u | %2d | 0x%08x\n",
67 list.keyAt(i), rec.size/1024.0f,
68 rec.w, rec.s, rec.h, rec.format, rec.usage);
69 result.append(buffer);
70 total += rec.size;
71 }
72 snprintf(buffer, SIZE, "Total allocated: %.2f KB\n", total/1024.0f);
73 result.append(buffer);
74 }
75
dumpToSystemLog()76 void GraphicBufferAllocator::dumpToSystemLog()
77 {
78 String8 s;
79 GraphicBufferAllocator::getInstance().dump(s);
80 LOGD("%s", s.string());
81 }
82
alloc(uint32_t w,uint32_t h,PixelFormat format,int usage,buffer_handle_t * handle,int32_t * stride)83 status_t GraphicBufferAllocator::alloc(uint32_t w, uint32_t h, PixelFormat format,
84 int usage, buffer_handle_t* handle, int32_t* stride)
85 {
86 // make sure to not allocate a N x 0 or 0 x N buffer, since this is
87 // allowed from an API stand-point allocate a 1x1 buffer instead.
88 if (!w || !h)
89 w = h = 1;
90
91 // we have a h/w allocator and h/w buffer is requested
92 status_t err;
93
94 if (usage & GRALLOC_USAGE_HW_MASK) {
95 err = mAllocDev->alloc(mAllocDev, w, h, format, usage, handle, stride);
96 } else {
97 err = sw_gralloc_handle_t::alloc(w, h, format, usage, handle, stride);
98 }
99
100 LOGW_IF(err, "alloc(%u, %u, %d, %08x, ...) failed %d (%s)",
101 w, h, format, usage, err, strerror(-err));
102
103 if (err == NO_ERROR) {
104 Mutex::Autolock _l(sLock);
105 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
106 alloc_rec_t rec;
107 rec.w = w;
108 rec.h = h;
109 rec.s = *stride;
110 rec.format = format;
111 rec.usage = usage;
112 rec.size = h * stride[0] * bytesPerPixel(format);
113 list.add(*handle, rec);
114 }
115
116 return err;
117 }
118
free(buffer_handle_t handle)119 status_t GraphicBufferAllocator::free(buffer_handle_t handle)
120 {
121 status_t err;
122 if (sw_gralloc_handle_t::validate(handle) < 0) {
123 err = mAllocDev->free(mAllocDev, handle);
124 } else {
125 err = sw_gralloc_handle_t::free((sw_gralloc_handle_t*)handle);
126 }
127
128 LOGW_IF(err, "free(...) failed %d (%s)", err, strerror(-err));
129 if (err == NO_ERROR) {
130 Mutex::Autolock _l(sLock);
131 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
132 list.removeItem(handle);
133 }
134
135 return err;
136 }
137
138 // ---------------------------------------------------------------------------
139 }; // namespace android
140