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 <ui/GraphicBufferAllocator.h>
22
23#include <stdio.h>
24
25#include <grallocusage/GrallocUsageConversion.h>
26
27#include <log/log.h>
28#include <utils/Singleton.h>
29#include <utils/String8.h>
30#include <utils/Trace.h>
31
32#include <ui/Gralloc2.h>
33#include <ui/GraphicBufferMapper.h>
34
35namespace android {
36// ---------------------------------------------------------------------------
37
38ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferAllocator )
39
40Mutex GraphicBufferAllocator::sLock;
41KeyedVector<buffer_handle_t,
42    GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList;
43
44GraphicBufferAllocator::GraphicBufferAllocator()
45  : mMapper(GraphicBufferMapper::getInstance()),
46    mAllocator(std::make_unique<Gralloc2::Allocator>(
47                mMapper.getGrallocMapper()))
48{
49}
50
51GraphicBufferAllocator::~GraphicBufferAllocator() {}
52
53void GraphicBufferAllocator::dump(String8& result) const
54{
55    Mutex::Autolock _l(sLock);
56    KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
57    size_t total = 0;
58    const size_t SIZE = 4096;
59    char buffer[SIZE];
60    snprintf(buffer, SIZE, "Allocated buffers:\n");
61    result.append(buffer);
62    const size_t c = list.size();
63    for (size_t i=0 ; i<c ; i++) {
64        const alloc_rec_t& rec(list.valueAt(i));
65        if (rec.size) {
66            snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u (%4u) x %4u | %4u | %8X | 0x%" PRIx64
67                    " | %s\n",
68                    list.keyAt(i), rec.size/1024.0,
69                    rec.width, rec.stride, rec.height, rec.layerCount, rec.format,
70                    rec.usage, rec.requestorName.c_str());
71        } else {
72            snprintf(buffer, SIZE, "%10p: unknown     | %4u (%4u) x %4u | %4u | %8X | 0x%" PRIx64
73                    " | %s\n",
74                    list.keyAt(i),
75                    rec.width, rec.stride, rec.height, rec.layerCount, rec.format,
76                    rec.usage, rec.requestorName.c_str());
77        }
78        result.append(buffer);
79        total += rec.size;
80    }
81    snprintf(buffer, SIZE, "Total allocated (estimate): %.2f KB\n", total/1024.0);
82    result.append(buffer);
83
84    std::string deviceDump = mAllocator->dumpDebugInfo();
85    result.append(deviceDump.c_str(), deviceDump.size());
86}
87
88void GraphicBufferAllocator::dumpToSystemLog()
89{
90    String8 s;
91    GraphicBufferAllocator::getInstance().dump(s);
92    ALOGD("%s", s.string());
93}
94
95status_t GraphicBufferAllocator::allocate(uint32_t width, uint32_t height,
96        PixelFormat format, uint32_t layerCount, uint64_t usage,
97        buffer_handle_t* handle, uint32_t* stride,
98        uint64_t /*graphicBufferId*/, std::string requestorName)
99{
100    ATRACE_CALL();
101
102    // make sure to not allocate a N x 0 or 0 x N buffer, since this is
103    // allowed from an API stand-point allocate a 1x1 buffer instead.
104    if (!width || !height)
105        width = height = 1;
106
107    // Ensure that layerCount is valid.
108    if (layerCount < 1)
109        layerCount = 1;
110
111    Gralloc2::IMapper::BufferDescriptorInfo info = {};
112    info.width = width;
113    info.height = height;
114    info.layerCount = layerCount;
115    info.format = static_cast<Gralloc2::PixelFormat>(format);
116    info.usage = usage;
117
118    Gralloc2::Error error = mAllocator->allocate(info, stride, handle);
119    if (error == Gralloc2::Error::NONE) {
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.layerCount = layerCount;
129        rec.usage = usage;
130        rec.size = static_cast<size_t>(height * (*stride) * bpp);
131        rec.requestorName = std::move(requestorName);
132        list.add(*handle, rec);
133
134        return NO_ERROR;
135    } else {
136        ALOGE("Failed to allocate (%u x %u) layerCount %u format %d "
137                "usage %" PRIx64 ": %d",
138                width, height, layerCount, format, usage,
139                error);
140        return NO_MEMORY;
141    }
142}
143
144status_t GraphicBufferAllocator::free(buffer_handle_t handle)
145{
146    ATRACE_CALL();
147
148    // We allocated a buffer from the allocator and imported it into the
149    // mapper to get the handle.  We just need to free the handle now.
150    mMapper.freeBuffer(handle);
151
152    Mutex::Autolock _l(sLock);
153    KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
154    list.removeItem(handle);
155
156    return NO_ERROR;
157}
158
159// ---------------------------------------------------------------------------
160}; // namespace android
161