/*
* Copyright (C) 2013 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 ATRACE_TAG ATRACE_TAG_RS
#include "rsContext.h"
#include "rsAllocation.h"
#include "rs_hal.h"
#include <cutils/compiler.h>
#include <utils/Log.h>
#include "rsGrallocConsumer.h"
#include <gui/BufferItem.h>
#include <ui/GraphicBuffer.h>
namespace android {
namespace renderscript {
GrallocConsumer::GrallocConsumer(Allocation *a, const sp<IGraphicBufferConsumer>& bq, int flags, uint32_t numAlloc) :
ConsumerBase(bq, true)
{
mAlloc = new Allocation *[numAlloc];
mAcquiredBuffer = new AcquiredBuffer[numAlloc];
isIdxUsed = new bool[numAlloc];
mAlloc[0] = a;
isIdxUsed[0] = true;
mNumAlloc = numAlloc;
if (flags == 0) {
flags = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_RENDERSCRIPT;
} else {
flags |= GRALLOC_USAGE_RENDERSCRIPT;
}
mConsumer->setConsumerUsageBits(flags);
mConsumer->setMaxAcquiredBufferCount(numAlloc + 1);
uint32_t y = a->mHal.drvState.lod[0].dimY;
if (y < 1) y = 1;
mConsumer->setDefaultBufferSize(a->mHal.drvState.lod[0].dimX, y);
if (a->mHal.state.yuv) {
bq->setDefaultBufferFormat(a->mHal.state.yuv);
}
for (uint32_t i = 1; i < numAlloc; i++) {
isIdxUsed[i] = false;
}
//mBufferQueue->setConsumerName(name);
}
GrallocConsumer::~GrallocConsumer() {
delete[] mAlloc;
delete[] mAcquiredBuffer;
delete[] isIdxUsed;
}
status_t GrallocConsumer::lockNextBuffer(uint32_t idx) {
Mutex::Autolock _l(mMutex);
status_t err;
if (idx >= mNumAlloc) {
ALOGE("Invalid buffer index: %d", idx);
return BAD_VALUE;
}
if (mAcquiredBuffer[idx].mSlot != BufferQueue::INVALID_BUFFER_SLOT) {
err = releaseAcquiredBufferLocked(idx);
if (err) {
return err;
}
}
BufferItem b;
err = acquireBufferLocked(&b, 0);
if (err != OK) {
if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
return BAD_VALUE;
} else {
ALOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
return err;
}
}
int slot = b.mSlot;
if (b.mFence.get()) {
err = b.mFence->waitForever("GrallocConsumer::lockNextBuffer");
if (err != OK) {
ALOGE("Failed to wait for fence of acquired buffer: %s (%d)",
strerror(-err), err);
return err;
}
}
void *bufferPointer = nullptr;
android_ycbcr ycbcr = android_ycbcr();
if (mSlots[slot].mGraphicBuffer->getPixelFormat() ==
HAL_PIXEL_FORMAT_YCbCr_420_888) {
err = mSlots[slot].mGraphicBuffer->lockYCbCr(
GraphicBuffer::USAGE_SW_READ_OFTEN,
b.mCrop,
&ycbcr);
if (err != OK) {
ALOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)",
strerror(-err), err);
return err;
}
bufferPointer = ycbcr.y;
} else {
err = mSlots[slot].mGraphicBuffer->lock(
GraphicBuffer::USAGE_SW_READ_OFTEN,
b.mCrop,
&bufferPointer);
if (err != OK) {
ALOGE("Unable to lock buffer for CPU reading: %s (%d)",
strerror(-err), err);
return err;
}
}
size_t lockedIdx = 0;
rsAssert(mAcquiredBuffer[idx].mSlot == BufferQueue::INVALID_BUFFER_SLOT);
mAcquiredBuffer[idx].mSlot = slot;
mAcquiredBuffer[idx].mBufferPointer = bufferPointer;
mAcquiredBuffer[idx].mGraphicBuffer = mSlots[slot].mGraphicBuffer;
mAlloc[idx]->mHal.drvState.lod[0].mallocPtr = reinterpret_cast<uint8_t*>(bufferPointer);
mAlloc[idx]->mHal.drvState.lod[0].stride = mSlots[slot].mGraphicBuffer->getStride() *
mAlloc[idx]->mHal.state.type->getElementSizeBytes();
mAlloc[idx]->mHal.state.nativeBuffer = mAcquiredBuffer[idx].mGraphicBuffer->getNativeBuffer();
mAlloc[idx]->mHal.state.timestamp = b.mTimestamp;
rsAssert(mAlloc[idx]->mHal.drvState.lod[0].dimX ==
mSlots[slot].mGraphicBuffer->getWidth());
rsAssert(mAlloc[idx]->mHal.drvState.lod[0].dimY ==
mSlots[slot].mGraphicBuffer->getHeight());
//mAlloc->format = mSlots[buf].mGraphicBuffer->getPixelFormat();
//mAlloc->crop = b.mCrop;
//mAlloc->transform = b.mTransform;
//mAlloc->scalingMode = b.mScalingMode;
//mAlloc->frameNumber = b.mFrameNumber;
// For YUV Allocations, we need to populate the drvState with details of how
// the data is layed out.
// RenderScript requests a buffer in the YCbCr_420_888 format.
// The Camera HAL can return a buffer of YCbCr_420_888 or YV12, regardless
// of the requested format.
// mHal.state.yuv contains the requested format,
// mGraphicBuffer->getPixelFormat() is the returned format.
if (mAlloc[idx]->mHal.state.yuv == HAL_PIXEL_FORMAT_YCbCr_420_888) {
const int yWidth = mAlloc[idx]->mHal.drvState.lod[0].dimX;
const int yHeight = mAlloc[idx]->mHal.drvState.lod[0].dimY;
if (mSlots[slot].mGraphicBuffer->getPixelFormat() ==
HAL_PIXEL_FORMAT_YCbCr_420_888) {
const int cWidth = yWidth / 2;
const int cHeight = yHeight / 2;
mAlloc[idx]->mHal.drvState.lod[1].dimX = cWidth;
mAlloc[idx]->mHal.drvState.lod[1].dimY = cHeight;
mAlloc[idx]->mHal.drvState.lod[2].dimX = cWidth;
mAlloc[idx]->mHal.drvState.lod[2].dimY = cHeight;
mAlloc[idx]->mHal.drvState.lod[0].mallocPtr = ycbcr.y;
mAlloc[idx]->mHal.drvState.lod[1].mallocPtr = ycbcr.cb;
mAlloc[idx]->mHal.drvState.lod[2].mallocPtr = ycbcr.cr;
mAlloc[idx]->mHal.drvState.lod[0].stride = ycbcr.ystride;
mAlloc[idx]->mHal.drvState.lod[1].stride = ycbcr.cstride;
mAlloc[idx]->mHal.drvState.lod[2].stride = ycbcr.cstride;
mAlloc[idx]->mHal.drvState.yuv.shift = 1;
mAlloc[idx]->mHal.drvState.yuv.step = ycbcr.chroma_step;
mAlloc[idx]->mHal.drvState.lodCount = 3;
} else if (mSlots[slot].mGraphicBuffer->getPixelFormat() ==
HAL_PIXEL_FORMAT_YV12) {
// For YV12, the data layout is Y, followed by Cr, followed by Cb;
// for YCbCr_420_888, it's Y, followed by Cb, followed by Cr.
// RenderScript assumes lod[0] is Y, lod[1] is Cb, and lod[2] is Cr.
const int cWidth = yWidth / 2;
const int cHeight = yHeight / 2;
mAlloc[idx]->mHal.drvState.lod[1].dimX = cWidth;
mAlloc[idx]->mHal.drvState.lod[1].dimY = cHeight;
mAlloc[idx]->mHal.drvState.lod[2].dimX = cWidth;
mAlloc[idx]->mHal.drvState.lod[2].dimY = cHeight;
size_t yStride = rsRound(yWidth *
mAlloc[idx]->mHal.state.type->getElementSizeBytes(), 16);
size_t cStride = rsRound(yStride >> 1, 16);
uint8_t *yPtr = (uint8_t *)mAlloc[idx]->mHal.drvState.lod[0].mallocPtr;
uint8_t *crPtr = yPtr + yStride * yHeight;
uint8_t *cbPtr = crPtr + cStride * cHeight;
mAlloc[idx]->mHal.drvState.lod[1].mallocPtr = cbPtr;
mAlloc[idx]->mHal.drvState.lod[2].mallocPtr = crPtr;
mAlloc[idx]->mHal.drvState.lod[0].stride = yStride;
mAlloc[idx]->mHal.drvState.lod[1].stride = cStride;
mAlloc[idx]->mHal.drvState.lod[2].stride = cStride;
mAlloc[idx]->mHal.drvState.yuv.shift = 1;
mAlloc[idx]->mHal.drvState.yuv.step = 1;
mAlloc[idx]->mHal.drvState.lodCount = 3;
} else {
ALOGD("Unrecognized format: %d",
mSlots[slot].mGraphicBuffer->getPixelFormat());
}
}
return OK;
}
status_t GrallocConsumer::unlockBuffer(uint32_t idx) {
Mutex::Autolock _l(mMutex);
return releaseAcquiredBufferLocked(idx);
}
status_t GrallocConsumer::releaseAcquiredBufferLocked(uint32_t idx) {
status_t err;
if (idx >= mNumAlloc) {
ALOGE("Invalid buffer index: %d", idx);
return BAD_VALUE;
}
if (mAcquiredBuffer[idx].mGraphicBuffer == nullptr) {
return OK;
}
err = mAcquiredBuffer[idx].mGraphicBuffer->unlock();
if (err != OK) {
ALOGE("%s: Unable to unlock graphic buffer", __FUNCTION__);
return err;
}
int buf = mAcquiredBuffer[idx].mSlot;
// release the buffer if it hasn't already been freed by the BufferQueue.
// This can happen, for example, when the producer of this buffer
// disconnected after this buffer was acquired.
if (CC_LIKELY(mAcquiredBuffer[idx].mGraphicBuffer ==
mSlots[buf].mGraphicBuffer)) {
releaseBufferLocked(
buf, mAcquiredBuffer[idx].mGraphicBuffer,
EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
}
mAcquiredBuffer[idx].mSlot = BufferQueue::INVALID_BUFFER_SLOT;
mAcquiredBuffer[idx].mBufferPointer = nullptr;
mAcquiredBuffer[idx].mGraphicBuffer.clear();
return OK;
}
uint32_t GrallocConsumer::getNextAvailableIdx(Allocation *a) {
for (uint32_t i = 0; i < mNumAlloc; i++) {
if (isIdxUsed[i] == false) {
mAlloc[i] = a;
isIdxUsed[i] = true;
return i;
}
}
return mNumAlloc;
}
bool GrallocConsumer::releaseIdx(uint32_t idx) {
if (idx >= mNumAlloc) {
ALOGE("Invalid buffer index: %d", idx);
return false;
}
if (isIdxUsed[idx] == false) {
ALOGV("Buffer index already released: %d", idx);
return true;
}
status_t err;
err = unlockBuffer(idx);
if (err != OK) {
ALOGE("Unable to unlock graphic buffer");
return false;
}
mAlloc[idx] = nullptr;
isIdxUsed[idx] = false;
return true;
}
} // namespace renderscript
} // namespace android