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/*
**
** Copyright 2009, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <sys/mman.h>
#include <cutils/ashmem.h>
#include <cutils/log.h>
#include <utils/Singleton.h>
#include <utils/String8.h>
#include "BufferAllocator.h"
namespace android {
// ---------------------------------------------------------------------------
ANDROID_SINGLETON_STATIC_INSTANCE( BufferAllocator )
Mutex BufferAllocator::sLock;
KeyedVector<buffer_handle_t, BufferAllocator::alloc_rec_t> BufferAllocator::sAllocList;
BufferAllocator::BufferAllocator()
: mAllocDev(0)
{
hw_module_t const* module;
int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
LOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID);
if (err == 0) {
gralloc_open(module, &mAllocDev);
}
}
BufferAllocator::~BufferAllocator()
{
gralloc_close(mAllocDev);
}
void BufferAllocator::dump(String8& result) const
{
Mutex::Autolock _l(sLock);
KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
size_t total = 0;
const size_t SIZE = 512;
char buffer[SIZE];
snprintf(buffer, SIZE, "Allocated buffers:\n");
result.append(buffer);
const size_t c = list.size();
for (size_t i=0 ; i<c ; i++) {
const alloc_rec_t& rec(list.valueAt(i));
snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u x %4u | %2d | 0x%08x\n",
list.keyAt(i), rec.size/1024.0f,
rec.w, rec.h, rec.format, rec.usage);
result.append(buffer);
total += rec.size;
}
snprintf(buffer, SIZE, "Total allocated: %.2f KB\n", total/1024.0f);
result.append(buffer);
}
status_t BufferAllocator::alloc(uint32_t w, uint32_t h, PixelFormat format,
int usage, buffer_handle_t* handle, int32_t* stride)
{
Mutex::Autolock _l(mLock);
// we have a h/w allocator and h/w buffer is requested
status_t err = mAllocDev->alloc(mAllocDev,
w, h, format, usage, handle, stride);
LOGW_IF(err, "alloc(%u, %u, %d, %08x, ...) failed %d (%s)",
w, h, format, usage, err, strerror(-err));
if (err == NO_ERROR) {
Mutex::Autolock _l(sLock);
KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
alloc_rec_t rec;
rec.w = w;
rec.h = h;
rec.format = format;
rec.usage = usage;
rec.vaddr = 0;
rec.size = h * stride[0] * bytesPerPixel(format);
list.add(*handle, rec);
}
return err;
}
status_t BufferAllocator::free(buffer_handle_t handle)
{
Mutex::Autolock _l(mLock);
status_t err = mAllocDev->free(mAllocDev, handle);
LOGW_IF(err, "free(...) failed %d (%s)", err, strerror(-err));
if (err == NO_ERROR) {
Mutex::Autolock _l(sLock);
KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
list.removeItem(handle);
}
return err;
}
// ---------------------------------------------------------------------------
}; // namespace android
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