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/*
* Copyright Samsung Electronics Co.,LTD.
* Copyright (C) 2015 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 "hwjpeg-internal.h"
#include "LibScalerForJpeg.h"
#define SCALER_DEV_NODE "/dev/video50"
static const char *getBufTypeString(unsigned int buftype)
{
if (buftype == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return "source";
if (buftype == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
return "destination";
return "unknown";
}
LibScalerForJpeg::LibScalerForJpeg()
{
m_fdScaler = open(SCALER_DEV_NODE, O_RDWR);
if (m_fdScaler < 0) {
ALOGE("Failed to open %s", SCALER_DEV_NODE);
return;
}
mSrcImage.init(m_fdScaler);
mDstImage.init(m_fdScaler);
ALOGD("LibScalerForJpeg Created: %p", this);
}
LibScalerForJpeg::~LibScalerForJpeg()
{
if (m_fdScaler > 0)
close(m_fdScaler);
m_fdScaler = -1;
ALOGD("LibScalerForJpeg Destroyed: %p", this);
}
bool LibScalerForJpeg::RunStream(int srcBuf[SCALER_MAX_PLANES], int srcLen[SCALER_MAX_PLANES], int dstBuf, size_t dstLen)
{
if (!mSrcImage.begin(V4L2_MEMORY_DMABUF) || !mDstImage.begin(V4L2_MEMORY_DMABUF))
return false;
return queue(srcBuf, srcLen, dstBuf, dstLen);
}
bool LibScalerForJpeg::RunStream(char *srcBuf[SCALER_MAX_PLANES], int srcLen[SCALER_MAX_PLANES], int dstBuf, size_t dstLen)
{
if (!mSrcImage.begin(V4L2_MEMORY_USERPTR) || !mDstImage.begin(V4L2_MEMORY_DMABUF))
return false;
return queue(srcBuf, srcLen, dstBuf, dstLen);
}
bool LibScalerForJpeg::Image::set(unsigned int width, unsigned int height, unsigned int format)
{
if (same(width, height, format))
return true;
if (memoryType != 0) {
v4l2_requestbuffers reqbufs{};
reqbufs.type = bufferType;
reqbufs.memory = memoryType;
reqbufs.count = 0;
if (ioctl(mDevFd, VIDIOC_REQBUFS, &reqbufs) < 0) {
ALOGE("Failed to REQBUFS for(0) %s", getBufTypeString(bufferType));
return false;
}
}
v4l2_format fmt{};
fmt.type = bufferType;
fmt.fmt.pix_mp.pixelformat = format;
fmt.fmt.pix_mp.width = width;
fmt.fmt.pix_mp.height = height;
if (ioctl(mDevFd, VIDIOC_S_FMT, &fmt) < 0) {
ALOGE("Failed to S_FMT for %s", getBufTypeString(bufferType));
return false;
}
memoryType = 0; // new reqbufs is required.
return true;
}
bool LibScalerForJpeg::Image::begin(unsigned int memtype)
{
if (memoryType != memtype) {
v4l2_requestbuffers reqbufs{};
reqbufs.type = bufferType;
if (memoryType != 0) {
reqbufs.memory = memoryType;
reqbufs.count = 0;
if (ioctl(mDevFd, VIDIOC_REQBUFS, &reqbufs) < 0) {
ALOGERR("Failed to REQBUFS(0) for %s", getBufTypeString(bufferType));
return false;
}
}
reqbufs.memory = memtype;
reqbufs.count = 1;
if (ioctl(mDevFd, VIDIOC_REQBUFS, &reqbufs) < 0) {
ALOGERR("Failed to REQBUFS(1) for %s with %d", getBufTypeString(bufferType), reqbufs.memory);
return false;
}
if (ioctl(mDevFd, VIDIOC_STREAMON, &bufferType) < 0) {
ALOGERR("Failed to STREAMON for %s", getBufTypeString(bufferType));
return false;
}
memoryType = memtype;
}
return true;
}
bool LibScalerForJpeg::Image::cancelBuffer()
{
if (ioctl(mDevFd, VIDIOC_STREAMOFF, &bufferType) < 0) {
ALOGE("Failed to STREAMOFF for %s", getBufTypeString(bufferType));
return false;
}
if (ioctl(mDevFd, VIDIOC_STREAMON, &bufferType) < 0) {
ALOGE("Failed to STREAMON for %s", getBufTypeString(bufferType));
return false;
}
return true;
}
bool LibScalerForJpeg::Image::queueBuffer(int buf, size_t len)
{
v4l2_buffer buffer{};
v4l2_plane plane[SCALER_MAX_PLANES];
memset(&plane, 0, sizeof(plane));
buffer.type = bufferType;
buffer.memory = memoryType;
buffer.length = 1;
buffer.m.planes = plane;
plane[0].m.fd = buf;
plane[0].length = len;
if (ioctl(mDevFd, VIDIOC_QBUF, &buffer) < 0) {
ALOGERR("Failed to QBUF for %s", getBufTypeString(bufferType));
return false;
}
return true;
}
bool LibScalerForJpeg::Image::queueBuffer(int buf[SCALER_MAX_PLANES], int len[SCALER_MAX_PLANES])
{
v4l2_buffer buffer{};
v4l2_plane plane[SCALER_MAX_PLANES];
memset(&plane, 0, sizeof(plane));
buffer.type = bufferType;
buffer.memory = memoryType;
buffer.length = SCALER_MAX_PLANES;
for (unsigned int i = 0; i < SCALER_MAX_PLANES; i++) {
plane[i].m.fd = buf[i];
plane[i].length = len[i];
}
buffer.m.planes = plane;
if (ioctl(mDevFd, VIDIOC_QBUF, &buffer) < 0) {
ALOGERR("Failed to QBUF for %s", getBufTypeString(bufferType));
return false;
}
return true;
}
bool LibScalerForJpeg::Image::queueBuffer(char *buf[SCALER_MAX_PLANES], int len[SCALER_MAX_PLANES])
{
v4l2_buffer buffer{};
v4l2_plane plane[SCALER_MAX_PLANES];
memset(&plane, 0, sizeof(plane));
buffer.type = bufferType;
buffer.memory = memoryType;
buffer.length = SCALER_MAX_PLANES;
for (unsigned int i = 0; i < SCALER_MAX_PLANES; i++) {
plane[i].m.userptr = reinterpret_cast<unsigned long>(buf[i]);
plane[i].length = len[i];
}
buffer.m.planes = plane;
if (ioctl(mDevFd, VIDIOC_QBUF, &buffer) < 0) {
ALOGERR("Failed to QBUF for %s", getBufTypeString(bufferType));
return false;
}
return true;
}
bool LibScalerForJpeg::Image::dequeueBuffer()
{
v4l2_buffer buffer{};
v4l2_plane plane[SCALER_MAX_PLANES];
memset(&plane, 0, sizeof(plane));
buffer.type = bufferType;
buffer.memory = memoryType;
buffer.length = SCALER_MAX_PLANES;
buffer.m.planes = plane;
if (ioctl(mDevFd, VIDIOC_DQBUF, &buffer) < 0 ) {
ALOGERR("Failed to DQBuf %s", getBufTypeString(bufferType));
return false;
}
return true;
}
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