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/****************************************************************************
**
** Copyright (C) 2014 Pelagicore AG
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include "qsgvivantevideomaterial.h"
#include "qsgvivantevideomaterialshader.h"
#include "qsgvivantevideonode.h"
#include <QOpenGLContext>
#include <QThread>
#include <unistd.h>
//#define QT_VIVANTE_VIDEO_DEBUG
QSGVivanteVideoMaterial::QSGVivanteVideoMaterial() :
mOpacity(1.0),
mWidth(0),
mHeight(0),
mFormat(QVideoFrame::Format_Invalid),
mCurrentTexture(0),
mMappable(true),
mTexDirectTexture(0)
{
#ifdef QT_VIVANTE_VIDEO_DEBUG
qDebug() << Q_FUNC_INFO;
#endif
setFlag(Blending, false);
}
QSGVivanteVideoMaterial::~QSGVivanteVideoMaterial()
{
clearTextures();
}
QSGMaterialType *QSGVivanteVideoMaterial::type() const {
static QSGMaterialType theType;
return &theType;
}
QSGMaterialShader *QSGVivanteVideoMaterial::createShader() const {
return new QSGVivanteVideoMaterialShader;
}
int QSGVivanteVideoMaterial::compare(const QSGMaterial *other) const {
if (this->type() == other->type()) {
const QSGVivanteVideoMaterial *m = static_cast<const QSGVivanteVideoMaterial *>(other);
if (this->mBitsToTextureMap == m->mBitsToTextureMap)
return 0;
else
return 1;
}
return 1;
}
void QSGVivanteVideoMaterial::updateBlending() {
setFlag(Blending, qFuzzyCompare(mOpacity, qreal(1.0)) ? false : true);
}
void QSGVivanteVideoMaterial::setCurrentFrame(const QVideoFrame &frame, QSGVideoNode::FrameFlags flags)
{
QMutexLocker lock(&mFrameMutex);
mNextFrame = frame;
mMappable = !flags.testFlag(QSGVideoNode::FrameFiltered);
#ifdef QT_VIVANTE_VIDEO_DEBUG
qDebug() << Q_FUNC_INFO << " new frame: " << frame;
#endif
}
void QSGVivanteVideoMaterial::bind()
{
QOpenGLContext *glcontext = QOpenGLContext::currentContext();
if (glcontext == 0) {
qWarning() << Q_FUNC_INFO << "no QOpenGLContext::currentContext() => return";
return;
}
QMutexLocker lock(&mFrameMutex);
if (mNextFrame.isValid()) {
mCurrentFrame.unmap();
mCurrentFrame = mNextFrame;
mCurrentTexture = vivanteMapping(mNextFrame);
}
else
glBindTexture(GL_TEXTURE_2D, mCurrentTexture);
}
void QSGVivanteVideoMaterial::clearTextures()
{
Q_FOREACH (GLuint id, mBitsToTextureMap.values()) {
#ifdef QT_VIVANTE_VIDEO_DEBUG
qDebug() << "delete texture: " << id;
#endif
glDeleteTextures(1, &id);
}
mBitsToTextureMap.clear();
if (mTexDirectTexture) {
glDeleteTextures(1, &mTexDirectTexture);
mTexDirectTexture = 0;
}
}
GLuint QSGVivanteVideoMaterial::vivanteMapping(QVideoFrame vF)
{
QOpenGLContext *glcontext = QOpenGLContext::currentContext();
if (glcontext == 0) {
qWarning() << Q_FUNC_INFO << "no QOpenGLContext::currentContext() => return 0";
return 0;
}
static PFNGLTEXDIRECTVIVPROC glTexDirectVIV_LOCAL = 0;
static PFNGLTEXDIRECTVIVMAPPROC glTexDirectVIVMap_LOCAL = 0;
static PFNGLTEXDIRECTINVALIDATEVIVPROC glTexDirectInvalidateVIV_LOCAL = 0;
if (glTexDirectVIV_LOCAL == 0 || glTexDirectVIVMap_LOCAL == 0 || glTexDirectInvalidateVIV_LOCAL == 0) {
glTexDirectVIV_LOCAL = reinterpret_cast<PFNGLTEXDIRECTVIVPROC>(glcontext->getProcAddress("glTexDirectVIV"));
glTexDirectVIVMap_LOCAL = reinterpret_cast<PFNGLTEXDIRECTVIVMAPPROC>(glcontext->getProcAddress("glTexDirectVIVMap"));
glTexDirectInvalidateVIV_LOCAL = reinterpret_cast<PFNGLTEXDIRECTINVALIDATEVIVPROC>(glcontext->getProcAddress("glTexDirectInvalidateVIV"));
}
if (glTexDirectVIV_LOCAL == 0 || glTexDirectVIVMap_LOCAL == 0 || glTexDirectInvalidateVIV_LOCAL == 0) {
qWarning() << Q_FUNC_INFO << "couldn't find \"glTexDirectVIVMap\" and/or \"glTexDirectInvalidateVIV\" => do nothing and return";
return 0;
}
if (mWidth != vF.width() || mHeight != vF.height() || mFormat != vF.pixelFormat()) {
mWidth = vF.width();
mHeight = vF.height();
mFormat = vF.pixelFormat();
clearTextures();
}
if (vF.map(QAbstractVideoBuffer::ReadOnly)) {
if (mMappable) {
if (!mBitsToTextureMap.contains(vF.bits())) {
// Haven't yet seen this logical address: map to texture.
GLuint tmpTexId;
glGenTextures(1, &tmpTexId);
mBitsToTextureMap.insert(vF.bits(), tmpTexId);
const uchar *constBits = vF.bits();
void *bits = (void*)constBits;
#ifdef QT_VIVANTE_VIDEO_DEBUG
qDebug() << Q_FUNC_INFO << "new texture, texId: " << tmpTexId << "; constBits: " << constBits;
#endif
GLuint physical = ~0U;
glBindTexture(GL_TEXTURE_2D, tmpTexId);
glTexDirectVIVMap_LOCAL(GL_TEXTURE_2D,
vF.width(), vF.height(),
QSGVivanteVideoNode::getVideoFormat2GLFormatMap().value(vF.pixelFormat()),
&bits, &physical);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexDirectInvalidateVIV_LOCAL(GL_TEXTURE_2D);
return tmpTexId;
} else {
// Fastest path: already seen this logical address. Just
// indicate that the data belonging to the texture has changed.
glBindTexture(GL_TEXTURE_2D, mBitsToTextureMap.value(vF.bits()));
glTexDirectInvalidateVIV_LOCAL(GL_TEXTURE_2D);
return mBitsToTextureMap.value(vF.bits());
}
} else {
// Cannot map. So copy.
if (!mTexDirectTexture) {
glGenTextures(1, &mTexDirectTexture);
glBindTexture(GL_TEXTURE_2D, mTexDirectTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexDirectVIV_LOCAL(GL_TEXTURE_2D, mCurrentFrame.width(), mCurrentFrame.height(),
QSGVivanteVideoNode::getVideoFormat2GLFormatMap().value(mCurrentFrame.pixelFormat()),
(GLvoid **) &mTexDirectPlanes);
} else {
glBindTexture(GL_TEXTURE_2D, mTexDirectTexture);
}
switch (mCurrentFrame.pixelFormat()) {
case QVideoFrame::Format_YUV420P:
case QVideoFrame::Format_YV12:
memcpy(mTexDirectPlanes[0], mCurrentFrame.bits(0), mCurrentFrame.height() * mCurrentFrame.bytesPerLine(0));
memcpy(mTexDirectPlanes[1], mCurrentFrame.bits(1), mCurrentFrame.height() * mCurrentFrame.bytesPerLine(1));
memcpy(mTexDirectPlanes[2], mCurrentFrame.bits(2), mCurrentFrame.height() * mCurrentFrame.bytesPerLine(2));
break;
case QVideoFrame::Format_NV12:
case QVideoFrame::Format_NV21:
memcpy(mTexDirectPlanes[0], mCurrentFrame.bits(0), mCurrentFrame.height() * mCurrentFrame.bytesPerLine(0));
memcpy(mTexDirectPlanes[1], mCurrentFrame.bits(1), mCurrentFrame.height() / 2 * mCurrentFrame.bytesPerLine(1));
break;
default:
memcpy(mTexDirectPlanes[0], mCurrentFrame.bits(), mCurrentFrame.height() * mCurrentFrame.bytesPerLine());
break;
}
glTexDirectInvalidateVIV_LOCAL(GL_TEXTURE_2D);
return mTexDirectTexture;
}
}
else {
#ifdef QT_VIVANTE_VIDEO_DEBUG
qWarning() << " couldn't map the QVideoFrame vF: " << vF;
#endif
return 0;
}
Q_ASSERT(false); // should never reach this line!;
return 0;
}
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