replicant-frameworks_native/libs/ui/GraphicBufferAllocator.cpp
Mathias Agopian c8620b60d6 fix [2545826] calling into gralloc with external lock held
Change-Id: I2d0e017382404c684c768a0dd0423d574213f10a
2010-03-25 14:34:49 -07:00

138 lines
4.0 KiB
C++

/*
**
** 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 <cutils/log.h>
#include <utils/Singleton.h>
#include <utils/String8.h>
#include <ui/GraphicBufferAllocator.h>
#include <private/ui/sw_gralloc_handle.h>
namespace android {
// ---------------------------------------------------------------------------
ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferAllocator )
Mutex GraphicBufferAllocator::sLock;
KeyedVector<buffer_handle_t,
GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList;
GraphicBufferAllocator::GraphicBufferAllocator()
: 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);
}
}
GraphicBufferAllocator::~GraphicBufferAllocator()
{
gralloc_close(mAllocDev);
}
void GraphicBufferAllocator::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);
}
static inline uint32_t clamp(uint32_t c) {
return c>0 ? c : 1;
}
status_t GraphicBufferAllocator::alloc(uint32_t w, uint32_t h, PixelFormat format,
int usage, buffer_handle_t* handle, int32_t* stride)
{
// make sure to not allocate a 0 x 0 buffer
w = clamp(w);
h = clamp(h);
// we have a h/w allocator and h/w buffer is requested
status_t err;
if (usage & GRALLOC_USAGE_HW_MASK) {
err = mAllocDev->alloc(mAllocDev, w, h, format, usage, handle, stride);
} else {
err = sw_gralloc_handle_t::alloc(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);
} else {
String8 s;
dump(s);
LOGD("%s", s.string());
}
return err;
}
status_t GraphicBufferAllocator::free(buffer_handle_t handle)
{
status_t err;
if (sw_gralloc_handle_t::validate(handle) < 0) {
err = mAllocDev->free(mAllocDev, handle);
} else {
err = sw_gralloc_handle_t::free((sw_gralloc_handle_t*)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