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Diffstat (limited to 'src/multimediawidgets/qeglimagetexturesurface.cpp')
| -rw-r--r-- | src/multimediawidgets/qeglimagetexturesurface.cpp | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/src/multimediawidgets/qeglimagetexturesurface.cpp b/src/multimediawidgets/qeglimagetexturesurface.cpp deleted file mode 100644 index 5e2073a48..000000000 --- a/src/multimediawidgets/qeglimagetexturesurface.cpp +++ /dev/null @@ -1,533 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <qeglimagetexturesurface_p.h> -#include <qpaintervideosurface_p.h> - -#include <QtCore/qmath.h> -#include <QtCore/qvariant.h> -#include <QtCore/qdebug.h> -#include <QtGui/qpainter.h> -#include <QtWidgets/qx11info_x11.h> -#include <qvideosurfaceformat.h> - - -QT_BEGIN_NAMESPACE - -//#define DEBUG_OMAPFB_SURFACE - -const QAbstractVideoBuffer::HandleType EGLImageTextureHandle = -QAbstractVideoBuffer::HandleType(QAbstractVideoBuffer::UserHandle+3434); - -/*! - \class QEglImageTextureSurface - \internal -*/ - -/*! -*/ -QEglImageTextureSurface::QEglImageTextureSurface(QObject *parent) - : QAbstractVideoSurface(parent) - , m_context(0) - , m_program(0) - , m_pixelFormat(QVideoFrame::Format_Invalid) - , m_ready(false) - , m_colorKey(49,0,49) - , m_fallbackSurface(0) - , m_fallbackSurfaceActive(false) -{ - m_fallbackSurface = new QPainterVideoSurface(this); -} - -/*! -*/ -QEglImageTextureSurface::~QEglImageTextureSurface() -{ - if (isActive()) - stop(); -} - -/*! -*/ -QList<QVideoFrame::PixelFormat> QEglImageTextureSurface::supportedPixelFormats( - QAbstractVideoBuffer::HandleType handleType) const -{ -#ifdef DEBUG_OMAPFB_SURFACE - qDebug() << Q_FUNC_INFO << handleType; -#endif - - if (handleType == EGLImageTextureHandle) { - return QList<QVideoFrame::PixelFormat>() - << QVideoFrame::Format_RGB32 - << QVideoFrame::Format_ARGB32; - } - - return m_fallbackSurface->supportedPixelFormats(handleType); -} - -const char *qt_glsl_eglTextureVertexShaderProgram = - "attribute highp vec4 vertexCoordArray;\n" - "attribute mediump vec2 textureCoordArray;\n" - "uniform highp mat4 positionMatrix;\n" - "varying mediump vec2 textureCoord;\n" - "void main (void)\n" - "{\n" - " gl_Position = positionMatrix * vertexCoordArray;\n" - " textureCoord = textureCoordArray;\n" - "}"; - -static const char* qt_glsl_eglTextureShaderProgram = - "#extension GL_OES_EGL_image_external: enable\n" - "\n" - "uniform samplerExternalOES texRgb;\n" - "varying mediump vec2 textureCoord;\n" - "\n" - "void main (void)\n" - "{\n" - " gl_FragColor = texture2D(texRgb, textureCoord);\n" - "}"; - - -/*! -*/ -bool QEglImageTextureSurface::start(const QVideoSurfaceFormat &format) -{ -#ifdef DEBUG_OMAPFB_SURFACE - qDebug() << Q_FUNC_INFO << format; -#endif - - m_fallbackSurfaceActive = false; - if (format.handleType() != EGLImageTextureHandle) { - qWarning() << Q_FUNC_INFO << "Non EGLImageTextureHandle based format requested, fallback to QPainterVideoSurface"; - connect(m_fallbackSurface, SIGNAL(activeChanged(bool)), - this, SIGNAL(activeChanged(bool))); - connect(m_fallbackSurface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat))); - connect(m_fallbackSurface, SIGNAL(supportedFormatsChanged()), - this, SIGNAL(supportedFormatsChanged())); - connect(m_fallbackSurface, SIGNAL(nativeResolutionChanged(QSize)), - this, SIGNAL(nativeResolutionChanged(QSize))); - connect(m_fallbackSurface, SIGNAL(frameChanged()), - this, SIGNAL(frameChanged())); - - if (m_fallbackSurface->start(format)) { - m_fallbackSurfaceActive = true; - QAbstractVideoSurface::start(format); - } else { - qWarning() << Q_FUNC_INFO << "failed to start video surface:" << m_fallbackSurface->error(); - setError(m_fallbackSurface->error()); - - disconnect(m_fallbackSurface, SIGNAL(activeChanged(bool)), - this, SIGNAL(activeChanged(bool))); - disconnect(m_fallbackSurface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat))); - disconnect(m_fallbackSurface, SIGNAL(supportedFormatsChanged()), - this, SIGNAL(supportedFormatsChanged())); - disconnect(m_fallbackSurface, SIGNAL(nativeResolutionChanged(QSize)), - this, SIGNAL(nativeResolutionChanged(QSize))); - disconnect(m_fallbackSurface, SIGNAL(frameChanged()), - this, SIGNAL(frameChanged())); - } - - return m_fallbackSurfaceActive; - } - - QAbstractVideoSurface::Error error = NoError; - - if (isActive()) - stop(); - - if (format.frameSize().isEmpty()) { - setError(UnsupportedFormatError); - } else if (m_context) { - m_context->makeCurrent(); - m_program = new QGLShaderProgram(m_context, this); - - if (!m_program->addShaderFromSourceCode(QGLShader::Vertex, qt_glsl_eglTextureVertexShaderProgram)) { - qWarning("QOmapFbVideoSurface: Vertex shader compile error %s", - qPrintable(m_program->log())); - error = ResourceError; - } - - if (error == NoError - && !m_program->addShaderFromSourceCode(QGLShader::Fragment, qt_glsl_eglTextureShaderProgram)) { - qWarning("QOmapFbVideoSurface: Vertex shader compile error %s", - qPrintable(m_program->log())); - error = QAbstractVideoSurface::ResourceError; - } - - if (error == NoError) { - m_program->bindAttributeLocation("textureCoordArray", 1); - if(!m_program->link()) { - qWarning("QOmapFbVideoSurface: Shader link error %s", qPrintable(m_program->log())); - m_program->removeAllShaders(); - error = QAbstractVideoSurface::ResourceError; - } - } - - if (error != QAbstractVideoSurface::NoError) { - delete m_program; - m_program = 0; - } - } - - if (error == QAbstractVideoSurface::NoError) { - m_scanLineDirection = format.scanLineDirection(); - m_frameSize = format.frameSize(); - m_pixelFormat = format.pixelFormat(); - m_frameSize = format.frameSize(); - m_sourceRect = format.viewport(); - m_ready = true; - - return QAbstractVideoSurface::start(format); - } - - QAbstractVideoSurface::stop(); - return false; -} - -/*! -*/ -void QEglImageTextureSurface::stop() -{ -#ifdef DEBUG_OMAPFB_SURFACE - qDebug() << Q_FUNC_INFO; -#endif - - if (m_fallbackSurfaceActive) { - m_fallbackSurface->stop(); - m_fallbackSurfaceActive = false; - - disconnect(m_fallbackSurface, SIGNAL(activeChanged(bool)), - this, SIGNAL(activeChanged(bool))); - disconnect(m_fallbackSurface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat))); - disconnect(m_fallbackSurface, SIGNAL(supportedFormatsChanged()), - this, SIGNAL(supportedFormatsChanged())); - disconnect(m_fallbackSurface, SIGNAL(nativeResolutionChanged(QSize)), - this, SIGNAL(nativeResolutionChanged(QSize))); - disconnect(m_fallbackSurface, SIGNAL(frameChanged()), - this, SIGNAL(frameChanged())); - - m_ready = false; - QAbstractVideoSurface::stop(); - } - - if (isActive()) { - if (m_context) - m_context->makeCurrent(); - m_frame = QVideoFrame(); - - m_program->removeAllShaders(); - delete m_program; - m_program = 0; - m_ready = false; - - QAbstractVideoSurface::stop(); - } -} - -/*! -*/ -bool QEglImageTextureSurface::present(const QVideoFrame &frame) -{ - if (m_fallbackSurfaceActive) { - if (m_fallbackSurface->present(frame)) { - return true; - } else { - setError(m_fallbackSurface->error()); - stop(); - return false; - } - } - - if (!m_ready) { - if (!isActive()) - setError(StoppedError); - else - m_frame = frame; - } else if (frame.isValid() - && (frame.pixelFormat() != m_pixelFormat || frame.size() != m_frameSize)) { - setError(IncorrectFormatError); - qWarning() << "Received frame of incorrect format, stopping the surface"; - - stop(); - } else { - if (m_context) - m_context->makeCurrent(); - m_frame = frame; - m_ready = false; - emit frameChanged(); - return true; - } - return false; -} - -/*! -*/ -int QEglImageTextureSurface::brightness() const -{ - return m_fallbackSurface->brightness(); -} - -/*! -*/ -void QEglImageTextureSurface::setBrightness(int brightness) -{ - m_fallbackSurface->setBrightness(brightness); -} - -/*! -*/ -int QEglImageTextureSurface::contrast() const -{ - return m_fallbackSurface->contrast(); -} - -/*! -*/ -void QEglImageTextureSurface::setContrast(int contrast) -{ - m_fallbackSurface->setContrast(contrast); -} - -/*! -*/ -int QEglImageTextureSurface::hue() const -{ - return m_fallbackSurface->hue(); -} - -/*! -*/ -void QEglImageTextureSurface::setHue(int hue) -{ - m_fallbackSurface->setHue(hue); -} - -/*! -*/ -int QEglImageTextureSurface::saturation() const -{ - return m_fallbackSurface->saturation(); -} - -/*! -*/ -void QEglImageTextureSurface::setSaturation(int saturation) -{ - m_fallbackSurface->setSaturation(saturation); -} - -/*! -*/ -bool QEglImageTextureSurface::isReady() const -{ - return m_fallbackSurfaceActive ? m_fallbackSurface->isReady() : m_ready; -} - -/*! -*/ -void QEglImageTextureSurface::setReady(bool ready) -{ - m_ready = ready; - if (m_fallbackSurfaceActive) - m_fallbackSurface->setReady(ready); -} - -/*! -*/ -void QEglImageTextureSurface::paint(QPainter *painter, const QRectF &target, const QRectF &sourceRect) -{ - if (m_fallbackSurfaceActive) { - m_fallbackSurface->paint(painter, target, sourceRect); - return; - } - - if (!isActive() || !m_frame.isValid()) { - painter->fillRect(target, QBrush(Qt::black)); - } else { - const QRectF source( - m_sourceRect.x() + m_sourceRect.width() * sourceRect.x(), - m_sourceRect.y() + m_sourceRect.height() * sourceRect.y(), - m_sourceRect.width() * sourceRect.width(), - m_sourceRect.height() * sourceRect.height()); - - bool stencilTestEnabled = glIsEnabled(GL_STENCIL_TEST); - bool scissorTestEnabled = glIsEnabled(GL_SCISSOR_TEST); - - painter->beginNativePainting(); - - if (stencilTestEnabled) - glEnable(GL_STENCIL_TEST); - if (scissorTestEnabled) - glEnable(GL_SCISSOR_TEST); - - const int width = QGLContext::currentContext()->device()->width(); - const int height = QGLContext::currentContext()->device()->height(); - - const QTransform transform = painter->deviceTransform(); - - const GLfloat wfactor = 2.0 / width; - const GLfloat hfactor = -2.0 / height; - - const GLfloat positionMatrix[4][4] = - { - { - /*(0,0)*/ GLfloat(wfactor * transform.m11() - transform.m13()), - /*(0,1)*/ GLfloat(hfactor * transform.m12() + transform.m13()), - /*(0,2)*/ 0.0, - /*(0,3)*/ GLfloat(transform.m13()) - }, { - /*(1,0)*/ GLfloat(wfactor * transform.m21() - transform.m23()), - /*(1,1)*/ GLfloat(hfactor * transform.m22() + transform.m23()), - /*(1,2)*/ 0.0, - /*(1,3)*/ GLfloat(transform.m23()) - }, { - /*(2,0)*/ 0.0, - /*(2,1)*/ 0.0, - /*(2,2)*/ -1.0, - /*(2,3)*/ 0.0 - }, { - /*(3,0)*/ GLfloat(wfactor * transform.dx() - transform.m33()), - /*(3,1)*/ GLfloat(hfactor * transform.dy() + transform.m33()), - /*(3,2)*/ 0.0, - /*(3,3)*/ GLfloat(transform.m33()) - } - }; - - const GLfloat vTop = m_scanLineDirection == QVideoSurfaceFormat::TopToBottom - ? target.top() - : target.bottom() + 1; - const GLfloat vBottom = m_scanLineDirection == QVideoSurfaceFormat::TopToBottom - ? target.bottom() + 1 - : target.top(); - - - const GLfloat vertexCoordArray[] = - { - GLfloat(target.left()) , GLfloat(vBottom), - GLfloat(target.right() + 1), GLfloat(vBottom), - GLfloat(target.left()) , GLfloat(vTop), - GLfloat(target.right() + 1), GLfloat(vTop) - }; - - const GLfloat txLeft = source.left() / m_frameSize.width(); - const GLfloat txRight = source.right() / m_frameSize.width(); - const GLfloat txTop = m_scanLineDirection == QVideoSurfaceFormat::TopToBottom - ? source.top() / m_frameSize.height() - : source.bottom() / m_frameSize.height(); - const GLfloat txBottom = m_scanLineDirection == QVideoSurfaceFormat::TopToBottom - ? source.bottom() / m_frameSize.height() - : source.top() / m_frameSize.height(); - - const GLfloat textureCoordArray[] = - { - txLeft , txBottom, - txRight, txBottom, - txLeft , txTop, - txRight, txTop - }; - - m_program->bind(); - - m_program->enableAttributeArray("vertexCoordArray"); - m_program->enableAttributeArray("textureCoordArray"); - m_program->setAttributeArray("vertexCoordArray", vertexCoordArray, 2); - m_program->setAttributeArray("textureCoordArray", textureCoordArray, 2); - m_program->setUniformValue("positionMatrix", positionMatrix); - m_program->setUniformValue("texRgb", 0); - - //map() binds the external texture - m_frame.map(QAbstractVideoBuffer::ReadOnly); - - glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); - - //it's necessary to unbind the external texture - m_frame.unmap(); - - m_program->release(); - - painter->endNativePainting(); - } -} - -/*! - \fn QEglImageTextureSurface::frameChanged() -*/ - -/*! -*/ -const QGLContext *QEglImageTextureSurface::glContext() const -{ - return m_context; -} - -/*! -*/ -void QEglImageTextureSurface::setGLContext(QGLContext *context) -{ - if (m_context == context) - return; - - stop(); - - m_context = context; - - m_fallbackSurface->setGLContext(context); - if (m_fallbackSurface->supportedShaderTypes() & QPainterVideoSurface::GlslShader) { - m_fallbackSurface->setShaderType(QPainterVideoSurface::GlslShader); - } else { - m_fallbackSurface->setShaderType(QPainterVideoSurface::FragmentProgramShader); - } - - emit supportedFormatsChanged(); -} - -void QEglImageTextureSurface::viewportDestroyed() -{ - m_context = 0; - m_fallbackSurface->viewportDestroyed(); - - setError(ResourceError); - stop(); -} - -#include "moc_qeglimagetexturesurface_p.cpp" -QT_END_NAMESPACE |