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/*
* Copyright (C) 2011 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 "RenderThread.h"
#include "RenderControl.h"
#include "ThreadInfo.h"
#include "ReadBuffer.h"
#include "TimeUtils.h"
#include "GLDispatch.h"
#include "GL2Dispatch.h"
#include "EGLDispatch.h"
#include "FrameBuffer.h"
#define STREAM_BUFFER_SIZE 4*1024*1024
RenderThread::RenderThread(IOStream *stream, emugl::Mutex *lock) :
emugl::Thread(),
m_lock(lock),
m_stream(stream),
m_finished(false)
{
}
RenderThread::~RenderThread()
{
delete m_stream;
}
RenderThread *RenderThread::create(IOStream *p_stream, emugl::Mutex *lock)
{
return new RenderThread(p_stream, lock);
}
intptr_t RenderThread::main()
{
RenderThreadInfo tInfo;
//
// initialize decoders
//
tInfo.m_glDec.initGL( gl_dispatch_get_proc_func, NULL );
tInfo.m_gl2Dec.initGL( gl2_dispatch_get_proc_func, NULL );
initRenderControlContext( &m_rcDec );
ReadBuffer readBuf(m_stream, STREAM_BUFFER_SIZE);
int stats_totalBytes = 0;
long long stats_t0 = GetCurrentTimeMS();
//
// open dump file if RENDER_DUMP_DIR is defined
//
const char *dump_dir = getenv("RENDERER_DUMP_DIR");
FILE *dumpFP = NULL;
if (dump_dir) {
size_t bsize = strlen(dump_dir) + 32;
char *fname = new char[bsize];
snprintf(fname,bsize,"%s/stream_%p", dump_dir, this);
dumpFP = fopen(fname, "wb");
if (!dumpFP) {
fprintf(stderr,"Warning: stream dump failed to open file %s\n",fname);
}
delete [] fname;
}
while (1) {
int stat = readBuf.getData();
if (stat <= 0) {
break;
}
//
// log received bandwidth statistics
//
stats_totalBytes += readBuf.validData();
long long dt = GetCurrentTimeMS() - stats_t0;
if (dt > 1000) {
//float dts = (float)dt / 1000.0f;
//printf("Used Bandwidth %5.3f MB/s\n", ((float)stats_totalBytes / dts) / (1024.0f*1024.0f));
stats_totalBytes = 0;
stats_t0 = GetCurrentTimeMS();
}
//
// dump stream to file if needed
//
if (dumpFP) {
int skip = readBuf.validData() - stat;
fwrite(readBuf.buf()+skip, 1, readBuf.validData()-skip, dumpFP);
fflush(dumpFP);
}
bool progress;
do {
progress = false;
m_lock->lock();
//
// try to process some of the command buffer using the GLESv1 decoder
//
size_t last = tInfo.m_glDec.decode(readBuf.buf(), readBuf.validData(), m_stream);
if (last > 0) {
progress = true;
readBuf.consume(last);
}
//
// try to process some of the command buffer using the GLESv2 decoder
//
last = tInfo.m_gl2Dec.decode(readBuf.buf(), readBuf.validData(), m_stream);
if (last > 0) {
progress = true;
readBuf.consume(last);
}
//
// try to process some of the command buffer using the
// renderControl decoder
//
last = m_rcDec.decode(readBuf.buf(), readBuf.validData(), m_stream);
if (last > 0) {
readBuf.consume(last);
progress = true;
}
m_lock->unlock();
} while( progress );
}
if (dumpFP) {
fclose(dumpFP);
}
//
// Release references to the current thread's context/surfaces if any
//
FrameBuffer::getFB()->bindContext(0, 0, 0);
if (tInfo.currContext || tInfo.currDrawSurf || tInfo.currReadSurf) {
fprintf(stderr, "ERROR: RenderThread exiting with current context/surfaces\n");
}
//
// flag that this thread has finished execution
m_finished = true;
return 0;
}
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