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/*
* Copyright (C) 2007 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.
*/
#define LOG_TAG "GraphicBufferMapper"
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
//#define LOG_NDEBUG 0
#include <ui/GraphicBufferMapper.h>
#include <grallocusage/GrallocUsageConversion.h>
// We would eliminate the non-conforming zero-length array, but we can't since
// this is effectively included from the Linux kernel
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wzero-length-array"
#include <sync/sync.h>
#pragma clang diagnostic pop
#include <utils/Log.h>
#include <utils/Trace.h>
#include <ui/Gralloc2.h>
#include <ui/GraphicBuffer.h>
#include <system/graphics.h>
namespace android {
// ---------------------------------------------------------------------------
ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper )
void GraphicBufferMapper::preloadHal() {
Gralloc2::Mapper::preload();
}
GraphicBufferMapper::GraphicBufferMapper()
: mMapper(std::make_unique<const Gralloc2::Mapper>())
{
}
status_t GraphicBufferMapper::importBuffer(buffer_handle_t rawHandle,
uint32_t width, uint32_t height, uint32_t layerCount,
PixelFormat format, uint64_t usage, uint32_t stride,
buffer_handle_t* outHandle)
{
ATRACE_CALL();
buffer_handle_t bufferHandle;
Gralloc2::Error error = mMapper->importBuffer(
hardware::hidl_handle(rawHandle), &bufferHandle);
if (error != Gralloc2::Error::NONE) {
ALOGW("importBuffer(%p) failed: %d", rawHandle, error);
return static_cast<status_t>(error);
}
Gralloc2::IMapper::BufferDescriptorInfo info = {};
info.width = width;
info.height = height;
info.layerCount = layerCount;
info.format = static_cast<Gralloc2::PixelFormat>(format);
info.usage = usage;
error = mMapper->validateBufferSize(bufferHandle, info, stride);
if (error != Gralloc2::Error::NONE) {
ALOGE("validateBufferSize(%p) failed: %d", rawHandle, error);
freeBuffer(bufferHandle);
return static_cast<status_t>(error);
}
*outHandle = bufferHandle;
return NO_ERROR;
}
void GraphicBufferMapper::getTransportSize(buffer_handle_t handle,
uint32_t* outTransportNumFds, uint32_t* outTransportNumInts)
{
mMapper->getTransportSize(handle, outTransportNumFds, outTransportNumInts);
}
status_t GraphicBufferMapper::freeBuffer(buffer_handle_t handle)
{
ATRACE_CALL();
mMapper->freeBuffer(handle);
return NO_ERROR;
}
static inline Gralloc2::IMapper::Rect asGralloc2Rect(const Rect& rect) {
Gralloc2::IMapper::Rect outRect{};
outRect.left = rect.left;
outRect.top = rect.top;
outRect.width = rect.width();
outRect.height = rect.height();
return outRect;
}
status_t GraphicBufferMapper::lock(buffer_handle_t handle, uint32_t usage,
const Rect& bounds, void** vaddr)
{
return lockAsync(handle, usage, bounds, vaddr, -1);
}
status_t GraphicBufferMapper::lockYCbCr(buffer_handle_t handle, uint32_t usage,
const Rect& bounds, android_ycbcr *ycbcr)
{
return lockAsyncYCbCr(handle, usage, bounds, ycbcr, -1);
}
status_t GraphicBufferMapper::unlock(buffer_handle_t handle)
{
int32_t fenceFd = -1;
status_t error = unlockAsync(handle, &fenceFd);
if (error == NO_ERROR && fenceFd >= 0) {
sync_wait(fenceFd, -1);
close(fenceFd);
}
return error;
}
status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd)
{
return lockAsync(handle, usage, usage, bounds, vaddr, fenceFd);
}
status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle,
uint64_t producerUsage, uint64_t consumerUsage, const Rect& bounds,
void** vaddr, int fenceFd)
{
ATRACE_CALL();
const uint64_t usage = static_cast<uint64_t>(
android_convertGralloc1To0Usage(producerUsage, consumerUsage));
Gralloc2::Error error = mMapper->lock(handle, usage,
asGralloc2Rect(bounds), fenceFd, vaddr);
ALOGW_IF(error != Gralloc2::Error::NONE, "lock(%p, ...) failed: %d",
handle, error);
return static_cast<status_t>(error);
}
status_t GraphicBufferMapper::lockAsyncYCbCr(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr, int fenceFd)
{
ATRACE_CALL();
Gralloc2::YCbCrLayout layout;
Gralloc2::Error error = mMapper->lock(handle, usage,
asGralloc2Rect(bounds), fenceFd, &layout);
if (error == Gralloc2::Error::NONE) {
ycbcr->y = layout.y;
ycbcr->cb = layout.cb;
ycbcr->cr = layout.cr;
ycbcr->ystride = static_cast<size_t>(layout.yStride);
ycbcr->cstride = static_cast<size_t>(layout.cStride);
ycbcr->chroma_step = static_cast<size_t>(layout.chromaStep);
}
return static_cast<status_t>(error);
}
status_t GraphicBufferMapper::unlockAsync(buffer_handle_t handle, int *fenceFd)
{
ATRACE_CALL();
*fenceFd = mMapper->unlock(handle);
return NO_ERROR;
}
// ---------------------------------------------------------------------------
}; // namespace android
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