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Diffstat (limited to 'src/3rdparty/phonon/qt7/videoframe.mm')
| -rw-r--r-- | src/3rdparty/phonon/qt7/videoframe.mm | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/qt7/videoframe.mm b/src/3rdparty/phonon/qt7/videoframe.mm new file mode 100644 index 0000000..7b67b5e --- /dev/null +++ b/src/3rdparty/phonon/qt7/videoframe.mm @@ -0,0 +1,398 @@ +/* This file is part of the KDE project. + + Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). + + This library is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation, either version 2.1 or 3 of the License. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this library. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "videoframe.h" +#include "quicktimevideoplayer.h" +#import <QuartzCore/CIFilter.h> +#import <QuartzCore/CIContext.h> + +//#define CACHE_CV_TEXTURE + +QT_BEGIN_NAMESPACE + +namespace Phonon +{ +namespace QT7 +{ + + VideoFrame::VideoFrame() + { + initMembers(); + } + + VideoFrame::VideoFrame(QuickTimeVideoPlayer *videoPlayer) + { + initMembers(); + m_videoPlayer = videoPlayer; + } + + VideoFrame::VideoFrame(const VideoFrame& frame) + { + copyMembers(frame); + retain(); + } + + void VideoFrame::operator=(const VideoFrame& frame) + { + if (this == &frame) + return; + + release(); + copyMembers(frame); + retain(); + } + + void VideoFrame::initMembers() + { + m_cachedCVTextureRef = 0; + m_cachedCIImage = 0; + m_cachedNSBitmap = 0; + m_videoPlayer = 0; + m_brightness = 0; + m_contrast = 0; + m_hue = 0; + m_saturation = 0; + m_opacity = 1; + m_backgroundFrame = 0; + } + + void VideoFrame::copyMembers(const VideoFrame& frame) + { +#ifdef CACHE_CV_TEXTURE + m_cachedCVTextureRef = frame.m_cachedCVTextureRef; +#endif + m_cachedCIImage = frame.m_cachedCIImage; + m_cachedQImage = frame.m_cachedQImage; + m_cachedNSBitmap = frame.m_cachedNSBitmap; + m_videoPlayer = frame.m_videoPlayer; + m_brightness = frame.m_brightness; + m_contrast = frame.m_contrast; + m_hue = frame.m_hue; + m_saturation = frame.m_saturation; + m_opacity = frame.m_opacity; + m_backgroundFrame = frame.m_backgroundFrame; + } + + VideoFrame::~VideoFrame() + { + release(); + } + + QuickTimeVideoPlayer *VideoFrame::videoPlayer() + { + return m_videoPlayer; + } + + void VideoFrame::setBackgroundFrame(const VideoFrame &frame) + { + m_backgroundFrame = new VideoFrame(frame); + } + + QRect VideoFrame::frameRect() const + { + return m_videoPlayer->videoRect(); + } + + CVOpenGLTextureRef VideoFrame::cachedCVTexture() const + { +#ifdef CACHE_CV_TEXTURE + if (!m_cachedCVTextureRef && m_videoPlayer){ + m_videoPlayer->setColors(m_brightness, m_contrast, m_hue, m_saturation); + (const_cast<VideoFrame *>(this))->m_cachedCVTextureRef = m_videoPlayer->currentFrameAsCVTexture(); + CVOpenGLTextureRetain((const_cast<VideoFrame *>(this))->m_cachedCVTextureRef); + } + return m_cachedCVTextureRef; +#else + if (m_videoPlayer){ + m_videoPlayer->setColors(m_brightness, m_contrast, m_hue, m_saturation); + return m_videoPlayer->currentFrameAsCVTexture(); + } + return 0; +#endif + } + + void *VideoFrame::cachedCIImage() const + { + if (!m_cachedCIImage && m_videoPlayer){ + m_videoPlayer->setColors(m_brightness, m_contrast, m_hue, m_saturation); + (const_cast<VideoFrame *>(this))->m_cachedCIImage = m_videoPlayer->currentFrameAsCIImage(); + } + return m_cachedCIImage; + } + + GLuint VideoFrame::glTextureRef() const + { + return CVOpenGLTextureGetName(cachedCVTexture()); + } + + void VideoFrame::setColors(qreal brightness, qreal contrast, qreal hue, qreal saturation) + { + if (m_backgroundFrame) + m_backgroundFrame->setColors(brightness, contrast, hue, saturation); + if (m_brightness == brightness + && m_contrast == contrast + && m_hue == hue + && m_saturation == saturation) + return; + + m_brightness = brightness; + m_contrast = contrast; + m_hue = hue; + m_saturation = saturation; + + invalidateImage(); + } + + CGRect VideoFrame::QRectToCGRect(const QRect & qrect) + { + CGRect cgrect; + cgrect.origin.x = qrect.x(); + cgrect.origin.y = qrect.y() + qrect.height(); + cgrect.size.width = qrect.width(); + cgrect.size.height = -qrect.height(); + return cgrect; + } + + bool VideoFrame::hasColorAdjustments() + { + return (m_brightness || m_contrast || m_saturation || m_hue); + } + + void VideoFrame::setBaseOpacity(qreal opacity) + { + m_opacity = opacity; + } + + void VideoFrame::drawQImage(QPainter *p, const QRect &rect) const + { + if (!m_videoPlayer) + return; +#ifdef QUICKTIME_C_API_AVAILABLE + if (m_cachedQImage.isNull()){ + m_videoPlayer->setColors(m_brightness, m_contrast, m_hue, m_saturation); + (const_cast<VideoFrame *>(this))->m_cachedQImage = m_videoPlayer->currentFrameAsQImage(); + } +#else + // Since cocoa-64 doesn't give us OpenGL textures directly, the process of converting + // CIImges into QImages takes time. We could still call m_videoPlayer->currentFrameAsQImage(), + // but because of bitmap memory management issues, and the fact that we need to swap red and + // blue, we can optimize the process a bit here since we are going to draw immidiatly: + CIImage *img = (CIImage*)cachedCIImage(); + if (!img) + return; + + if (!m_cachedNSBitmap){ + (const_cast<VideoFrame *>(this))->m_cachedNSBitmap = + [[NSBitmapImageRep alloc] initWithCIImage:img]; + CGRect bounds = [img extent]; + int w = bounds.size.width; + int h = bounds.size.height; + (const_cast<VideoFrame *>(this))->m_cachedQImage = + QImage([m_cachedNSBitmap bitmapData], w, h, QImage::Format_ARGB32); + // Swap red and blue (same as QImage::rgbSwapped, but without copy) + for (int i=0; i<h; ++i) { + uint *p = (uint*) m_cachedQImage.scanLine(i); + uint *end = p + w; + while (p < end) { + *p = ((*p << 16) & 0xff0000) | ((*p >> 16) & 0xff) | (*p & 0xff00ff00); + p++; + } + } + } +#endif + p->drawImage(rect, m_cachedQImage); + } + + void VideoFrame::drawCIImage(const QRect &rect, float opacity) const + { + drawCIImage(QRectToCGRect(rect), opacity); + } + + void VideoFrame::drawCIImage(const CGRect &rect, float opacity) const + { + Q_UNUSED(opacity); + CIImage *img = (CIImage *) cachedCIImage(); + if (!img) + return; + + CIContext* ciContext = [[NSGraphicsContext currentContext] CIContext]; + [ciContext drawImage:img inRect:rect fromRect:[img extent]]; + } + + void VideoFrame::drawCVTexture(const QRect &rect, float opacity) const + { + if (!m_videoPlayer) + return; + if (m_backgroundFrame) + m_backgroundFrame->drawCVTexture(rect, opacity); + + CVOpenGLTextureRef texRef = cachedCVTexture(); + if (!texRef) + return; + + glPushMatrix(); + glDisable(GL_CULL_FACE); + GLenum target = CVOpenGLTextureGetTarget(texRef); + glEnable(target); + + opacity *= m_opacity; + if (opacity < 1){ + glEnable(GL_BLEND); + glColor4f(1, 1, 1, opacity); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + } else { + glColor3f(1, 1, 1); + glDisable(GL_BLEND); + } + + glBindTexture(target, CVOpenGLTextureGetName(texRef)); + glTexParameterf(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + GLfloat lowerLeft[2], lowerRight[2], upperRight[2], upperLeft[2]; + CVOpenGLTextureGetCleanTexCoords(texRef, lowerLeft, lowerRight, upperRight, upperLeft); + + glBegin(GL_QUADS); + glTexCoord2f(lowerLeft[0], lowerLeft[1]); + glVertex2i(rect.topLeft().x(), rect.topLeft().y()); + glTexCoord2f(lowerRight[0], lowerRight[1]); + glVertex2i(rect.topRight().x() + 1, rect.topRight().y()); + glTexCoord2f(upperRight[0], upperRight[1]); + glVertex2i(rect.bottomRight().x() + 1, rect.bottomRight().y() + 1); + glTexCoord2f(upperLeft[0], upperLeft[1]); + glVertex2i(rect.bottomLeft().x(), rect.bottomLeft().y() + 1); + glEnd(); + glPopMatrix(); + } + + void VideoFrame::drawGLTexture(const QRect &rect, float opacity) const + { + if (!m_videoPlayer) + return; + if (m_backgroundFrame) + m_backgroundFrame->drawGLTexture(rect, opacity); + + GLuint texture = m_videoPlayer->currentFrameAsGLTexture(); + if (!texture) + return; + + glPushMatrix(); + glDisable(GL_CULL_FACE); + glEnable(GL_TEXTURE_RECTANGLE_EXT); + + opacity *= m_opacity; + if (opacity < 1){ + glEnable(GL_BLEND); + glColor4f(1, 1, 1, opacity); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + } else { + glColor3f(1, 1, 1); + glDisable(GL_BLEND); + } + + glBindTexture(GL_TEXTURE_RECTANGLE_EXT, texture); + glTexParameterf(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + QRect videoRect = m_videoPlayer->videoRect(); + GLfloat lowerLeft[2], lowerRight[2], upperRight[2], upperLeft[2]; + lowerLeft[0] = 0; + lowerLeft[1] = videoRect.height(); + lowerRight[0] = videoRect.width(); + lowerRight[1] = videoRect.height(); + upperRight[0] = videoRect.width(); + upperRight[1] = 0; + upperLeft[0] = 0; + upperLeft[1] = 0; + + glBegin(GL_QUADS); + glTexCoord2f(lowerLeft[0], lowerLeft[1]); + glVertex2i(rect.topLeft().x(), rect.topLeft().y()); + glTexCoord2f(lowerRight[0], lowerRight[1]); + glVertex2i(rect.topRight().x() + 1, rect.topRight().y()); + glTexCoord2f(upperRight[0], upperRight[1]); + glVertex2i(rect.bottomRight().x() + 1, rect.bottomRight().y() + 1); + glTexCoord2f(upperLeft[0], upperLeft[1]); + glVertex2i(rect.bottomLeft().x(), rect.bottomLeft().y() + 1); + glEnd(); + glPopMatrix(); + + + // FOR NOW. FREE THE TEXTURE: + glDeleteTextures(1, &texture); + } + + bool VideoFrame::isEmpty() + { + return (m_videoPlayer == 0); + } + + void VideoFrame::invalidateImage() const + { +#ifdef CACHE_CV_TEXTURE + if (m_cachedCVTextureRef){ + CVOpenGLTextureRelease(m_cachedCVTextureRef); + (const_cast<VideoFrame *>(this))->m_cachedCVTextureRef = 0; + } +#endif + if (m_cachedCIImage){ + [(CIImage *) m_cachedCIImage release]; + (const_cast<VideoFrame *>(this))->m_cachedCIImage = 0; + } + if (m_cachedNSBitmap){ + [m_cachedNSBitmap release]; + (const_cast<VideoFrame *>(this))->m_cachedNSBitmap = 0; + } + (const_cast<VideoFrame *>(this))-> m_cachedQImage = QImage(); + } + + void VideoFrame::retain() const + { +#ifdef CACHE_CV_TEXTURE + if (m_cachedCVTextureRef) + CVOpenGLTextureRetain(m_cachedCVTextureRef); +#endif + if (m_cachedCIImage) + [(CIImage *) m_cachedCIImage retain]; + if (m_backgroundFrame) + m_backgroundFrame->retain(); + if (m_cachedNSBitmap) + [m_cachedNSBitmap retain]; + } + + void VideoFrame::release() const + { +#ifdef CACHE_CV_TEXTURE + if (m_cachedCVTextureRef){ + CVOpenGLTextureRelease(m_cachedCVTextureRef); + (const_cast<VideoFrame *>(this))->m_cachedCVTextureRef = 0; + } +#endif + if (m_cachedCIImage) + [(CIImage *) m_cachedCIImage release]; + if (m_backgroundFrame) + m_backgroundFrame->release(); + if (m_cachedNSBitmap) + [m_cachedNSBitmap release]; + + (const_cast<VideoFrame *>(this))->m_backgroundFrame = 0; + (const_cast<VideoFrame *>(this))->m_cachedCIImage = 0; + (const_cast<VideoFrame *>(this))->m_cachedNSBitmap = 0; + } + +}} //namespace Phonon::QT7 + +QT_END_NAMESPACE |