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/*
* 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.
*/
#include <pthread.h>
#include <hardware/camera3.h>
#include <hardware/gralloc.h>
#include <system/graphics.h>
//#define LOG_NDEBUG 0
#define LOG_TAG "Stream"
#include <cutils/log.h>
#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
#include <cutils/trace.h>
#include "ScopedTrace.h"
#include "Stream.h"
namespace default_camera_hal {
Stream::Stream(int id, camera3_stream_t *s)
: mReuse(false),
mId(id),
mStream(s),
mType(s->stream_type),
mWidth(s->width),
mHeight(s->height),
mFormat(s->format),
mUsage(0),
mMaxBuffers(0),
mRegistered(false),
mBuffers(0),
mNumBuffers(0)
{
// NULL (default) pthread mutex attributes
pthread_mutex_init(&mMutex, NULL);
}
Stream::~Stream()
{
pthread_mutex_lock(&mMutex);
unregisterBuffers_L();
pthread_mutex_unlock(&mMutex);
}
void Stream::setUsage(uint32_t usage)
{
pthread_mutex_lock(&mMutex);
if (usage != mUsage) {
mUsage = usage;
unregisterBuffers_L();
}
pthread_mutex_unlock(&mMutex);
}
void Stream::setMaxBuffers(uint32_t max_buffers)
{
pthread_mutex_lock(&mMutex);
if (max_buffers != mMaxBuffers) {
mMaxBuffers = max_buffers;
unregisterBuffers_L();
}
pthread_mutex_unlock(&mMutex);
}
int Stream::getType()
{
return mType;
}
bool Stream::isInputType()
{
return mType == CAMERA3_STREAM_INPUT ||
mType == CAMERA3_STREAM_BIDIRECTIONAL;
}
bool Stream::isOutputType()
{
return mType == CAMERA3_STREAM_OUTPUT ||
mType == CAMERA3_STREAM_BIDIRECTIONAL;
}
bool Stream::isRegistered()
{
return mRegistered;
}
bool Stream::isValidReuseStream(int id, camera3_stream_t *s)
{
if (id != mId) {
ALOGE("%s:%d: Invalid camera id for reuse. Got %d expect %d",
__func__, mId, id, mId);
return false;
}
if (s != mStream) {
ALOGE("%s:%d: Invalid stream handle for reuse. Got %p expect %p",
__func__, mId, s, mStream);
return false;
}
if (s->stream_type != mType) {
// TODO: prettyprint type string
ALOGE("%s:%d: Mismatched type in reused stream. Got %d expect %d",
__func__, mId, s->stream_type, mType);
return false;
}
if (s->format != mFormat) {
// TODO: prettyprint format string
ALOGE("%s:%d: Mismatched format in reused stream. Got %d expect %d",
__func__, mId, s->format, mFormat);
return false;
}
if (s->width != mWidth) {
ALOGE("%s:%d: Mismatched width in reused stream. Got %d expect %d",
__func__, mId, s->width, mWidth);
return false;
}
if (s->height != mHeight) {
ALOGE("%s:%d: Mismatched height in reused stream. Got %d expect %d",
__func__, mId, s->height, mHeight);
return false;
}
return true;
}
int Stream::registerBuffers(const camera3_stream_buffer_set_t *buf_set)
{
CAMTRACE_CALL();
if (buf_set->stream != mStream) {
ALOGE("%s:%d: Buffer set for invalid stream. Got %p expect %p",
__func__, mId, buf_set->stream, mStream);
return -EINVAL;
}
pthread_mutex_lock(&mMutex);
mNumBuffers = buf_set->num_buffers;
mBuffers = new buffer_handle_t*[mNumBuffers];
for (unsigned int i = 0; i < mNumBuffers; i++) {
ALOGV("%s:%d: Registering buffer %p", __func__, mId,
buf_set->buffers[i]);
mBuffers[i] = buf_set->buffers[i];
// TODO: register buffers with hw, handle error cases
}
mRegistered = true;
pthread_mutex_unlock(&mMutex);
return 0;
}
// This must only be called with mMutex held
void Stream::unregisterBuffers_L()
{
mRegistered = false;
mNumBuffers = 0;
delete [] mBuffers;
// TODO: unregister buffers from hw
}
} // namespace default_camera_hal
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