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-rw-r--r--src/openvg/qpixmapfilter_vg.cpp356
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diff --git a/src/openvg/qpixmapfilter_vg.cpp b/src/openvg/qpixmapfilter_vg.cpp
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index 52dcca3706..0000000000
--- a/src/openvg/qpixmapfilter_vg.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtOpenVG module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qpixmapfilter_vg_p.h"
-#include "qvgimagepool_p.h"
-#include <QtCore/qvarlengtharray.h>
-#include <QtGui/qpainter.h>
-
-QT_BEGIN_NAMESPACE
-
-#if !defined(QT_SHIVAVG)
-
-QVGPixmapConvolutionFilter::QVGPixmapConvolutionFilter()
- : QPixmapConvolutionFilter()
-{
-}
-
-QVGPixmapConvolutionFilter::~QVGPixmapConvolutionFilter()
-{
-}
-
-extern void qt_vg_drawVGImage
- (QPainter *painter, const QPointF& pos, VGImage vgImg);
-extern void qt_vg_drawVGImageStencil
- (QPainter *painter, const QPointF& pos, VGImage vgImg, const QBrush& brush);
-
-void QVGPixmapConvolutionFilter::draw
- (QPainter *painter, const QPointF &dest,
- const QPixmap &src, const QRectF &srcRect) const
-{
- if (src.isNull())
- return;
-
- if (src.pixmapData()->classId() != QPixmapData::OpenVGClass) {
- // The pixmap data is not an instance of QVGPixmapData, so fall
- // back to the default convolution filter implementation.
- QPixmapConvolutionFilter::draw(painter, dest, src, srcRect);
- return;
- }
-
- QVGPixmapData *pd = static_cast<QVGPixmapData *>(src.pixmapData());
-
- VGImage srcImage = pd->toVGImage();
- if (srcImage == VG_INVALID_HANDLE)
- return;
-
- QSize size = pd->size();
- VGImage dstImage = QVGImagePool::instance()->createTemporaryImage
- (VG_sARGB_8888_PRE, size.width(), size.height(),
- VG_IMAGE_QUALITY_FASTER, pd);
- if (dstImage == VG_INVALID_HANDLE)
- return;
-
- int kernelWidth = rows();
- int kernelHeight = columns();
- const qreal *kern = convolutionKernel();
- QVarLengthArray<VGshort> kernel;
- for (int i = 0; i < kernelWidth; ++i) {
- for (int j = 0; j < kernelHeight; ++j) {
- kernel.append((VGshort)(kern[j * kernelWidth + i] * 1024.0f));
- }
- }
-
- VGfloat values[4];
- values[0] = 0.0f;
- values[1] = 0.0f;
- values[2] = 0.0f;
- values[3] = 0.0f;
- vgSetfv(VG_TILE_FILL_COLOR, 4, values);
-
- vgConvolve(dstImage, srcImage,
- kernelWidth, kernelHeight, 0, 0,
- kernel.constData(), 1.0f / 1024.0f, 0.0f,
- VG_TILE_FILL);
-
- VGImage child = VG_INVALID_HANDLE;
-
- if (srcRect.isNull() ||
- (srcRect.topLeft().isNull() && srcRect.size() == size)) {
- child = dstImage;
- } else {
- QRect src = srcRect.toRect();
- child = vgChildImage(dstImage, src.x(), src.y(), src.width(), src.height());
- }
-
- qt_vg_drawVGImage(painter, dest, child);
-
- if(child != dstImage)
- vgDestroyImage(child);
- QVGImagePool::instance()->releaseImage(0, dstImage);
-}
-
-QVGPixmapColorizeFilter::QVGPixmapColorizeFilter()
- : QPixmapColorizeFilter()
-{
-}
-
-QVGPixmapColorizeFilter::~QVGPixmapColorizeFilter()
-{
-}
-
-void QVGPixmapColorizeFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
-{
- if (src.isNull())
- return;
-
- if (src.pixmapData()->classId() != QPixmapData::OpenVGClass) {
- // The pixmap data is not an instance of QVGPixmapData, so fall
- // back to the default colorize filter implementation.
- QPixmapColorizeFilter::draw(painter, dest, src, srcRect);
- return;
- }
-
- QVGPixmapData *pd = static_cast<QVGPixmapData *>(src.pixmapData());
-
- VGImage srcImage = pd->toVGImage();
- if (srcImage == VG_INVALID_HANDLE)
- return;
-
- QSize size = pd->size();
- VGImage dstImage = QVGImagePool::instance()->createTemporaryImage
- (VG_sARGB_8888_PRE, size.width(), size.height(),
- VG_IMAGE_QUALITY_FASTER, pd);
- if (dstImage == VG_INVALID_HANDLE)
- return;
-
- // Determine the weights for the matrix from the color and strength.
- QColor c = color();
- VGfloat strength = this->strength();
- VGfloat weights[3];
- VGfloat invweights[3];
- VGfloat alpha = c.alphaF();
- weights[0] = c.redF() * alpha;
- weights[1] = c.greenF() * alpha;
- weights[2] = c.blueF() * alpha;
- invweights[0] = (1.0f - weights[0]) * strength;
- invweights[1] = (1.0f - weights[1]) * strength;
- invweights[2] = (1.0f - weights[2]) * strength;
-
- // Grayscale weights.
- static const VGfloat redGray = 11.0f / 32.0f;
- static const VGfloat greenGray = 16.0f / 32.0f;
- static const VGfloat blueGray = 1.0f - (redGray + greenGray);
-
- VGfloat matrix[5][4];
- matrix[0][0] = redGray * invweights[0] + (1.0f - strength);
- matrix[0][1] = redGray * invweights[1];
- matrix[0][2] = redGray * invweights[2];
- matrix[0][3] = 0.0f;
- matrix[1][0] = greenGray * invweights[0];
- matrix[1][1] = greenGray * invweights[1] + (1.0f - strength);
- matrix[1][2] = greenGray * invweights[2];
- matrix[1][3] = 0.0f;
- matrix[2][0] = blueGray * invweights[0];
- matrix[2][1] = blueGray * invweights[1];
- matrix[2][2] = blueGray * invweights[2] + (1.0f - strength);
- matrix[2][3] = 0.0f;
- matrix[3][0] = 0.0f;
- matrix[3][1] = 0.0f;
- matrix[3][2] = 0.0f;
- matrix[3][3] = 1.0f;
- matrix[4][0] = weights[0] * strength;
- matrix[4][1] = weights[1] * strength;
- matrix[4][2] = weights[2] * strength;
- matrix[4][3] = 0.0f;
-
- vgColorMatrix(dstImage, srcImage, matrix[0]);
-
- VGImage child = VG_INVALID_HANDLE;
-
- if (srcRect.isNull() ||
- (srcRect.topLeft().isNull() && srcRect.size() == size)) {
- child = dstImage;
- } else {
- QRect src = srcRect.toRect();
- child = vgChildImage(dstImage, src.x(), src.y(), src.width(), src.height());
- }
-
- qt_vg_drawVGImage(painter, dest, child);
-
- if(child != dstImage)
- vgDestroyImage(child);
- QVGImagePool::instance()->releaseImage(0, dstImage);
-}
-
-QVGPixmapDropShadowFilter::QVGPixmapDropShadowFilter()
- : QPixmapDropShadowFilter()
-{
-}
-
-QVGPixmapDropShadowFilter::~QVGPixmapDropShadowFilter()
-{
-}
-
-void QVGPixmapDropShadowFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
-{
- if (src.isNull())
- return;
-
- if (src.pixmapData()->classId() != QPixmapData::OpenVGClass) {
- // The pixmap data is not an instance of QVGPixmapData, so fall
- // back to the default drop shadow filter implementation.
- QPixmapDropShadowFilter::draw(painter, dest, src, srcRect);
- return;
- }
-
- QVGPixmapData *pd = static_cast<QVGPixmapData *>(src.pixmapData());
-
- VGImage srcImage = pd->toVGImage();
- if (srcImage == VG_INVALID_HANDLE)
- return;
-
- QSize size = pd->size();
- VGImage dstImage = QVGImagePool::instance()->createTemporaryImage
- (VG_A_8, size.width(), size.height(),
- VG_IMAGE_QUALITY_FASTER, pd);
- if (dstImage == VG_INVALID_HANDLE)
- return;
-
- // Clamp the radius range. We divide by 2 because the OpenVG blur
- // is "too blurry" compared to the default raster implementation.
- VGfloat maxRadius = VGfloat(vgGeti(VG_MAX_GAUSSIAN_STD_DEVIATION));
- VGfloat radiusF = VGfloat(blurRadius()) / 2.0f;
- if (radiusF < 0.001f)
- radiusF = 0.001f;
- else if (radiusF > maxRadius)
- radiusF = maxRadius;
-
- // Blur the blackened source image.
- vgGaussianBlur(dstImage, srcImage, radiusF, radiusF, VG_TILE_PAD);
-
- VGImage child = VG_INVALID_HANDLE;
-
- QRect srect;
- if (srcRect.isNull() ||
- (srcRect.topLeft().isNull() && srcRect.size() == size)) {
- child = dstImage;
- srect = QRect(0, 0, size.width(), size.height());
- } else {
- srect = srcRect.toRect();
- child = vgChildImage(dstImage, srect.x(), srect.y(), srect.width(), srect.height());
- }
-
- qt_vg_drawVGImageStencil(painter, dest + offset(), child, color());
-
- if(child != dstImage)
- vgDestroyImage(child);
- QVGImagePool::instance()->releaseImage(0, dstImage);
-
- // Now draw the actual pixmap over the top.
- painter->drawPixmap(dest, src, srect);
-}
-
-QVGPixmapBlurFilter::QVGPixmapBlurFilter(QObject *parent)
- : QPixmapBlurFilter(parent)
-{
-}
-
-QVGPixmapBlurFilter::~QVGPixmapBlurFilter()
-{
-}
-
-void QVGPixmapBlurFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
-{
- if (src.isNull())
- return;
-
- if (src.pixmapData()->classId() != QPixmapData::OpenVGClass) {
- // The pixmap data is not an instance of QVGPixmapData, so fall
- // back to the default blur filter implementation.
- QPixmapBlurFilter::draw(painter, dest, src, srcRect);
- return;
- }
-
- QVGPixmapData *pd = static_cast<QVGPixmapData *>(src.pixmapData());
-
- VGImage srcImage = pd->toVGImage();
- if (srcImage == VG_INVALID_HANDLE)
- return;
-
- QSize size = pd->size();
- VGImage dstImage = QVGImagePool::instance()->createTemporaryImage
- (VG_sARGB_8888_PRE, size.width(), size.height(),
- VG_IMAGE_QUALITY_FASTER, pd);
- if (dstImage == VG_INVALID_HANDLE)
- return;
-
- // Clamp the radius range. We divide by 2 because the OpenVG blur
- // is "too blurry" compared to the default raster implementation.
- VGfloat maxRadius = VGfloat(vgGeti(VG_MAX_GAUSSIAN_STD_DEVIATION));
- VGfloat radiusF = VGfloat(radius()) / 2.0f;
- if (radiusF < 0.001f)
- radiusF = 0.001f;
- else if (radiusF > maxRadius)
- radiusF = maxRadius;
-
- vgGaussianBlur(dstImage, srcImage, radiusF, radiusF, VG_TILE_PAD);
-
- VGImage child = VG_INVALID_HANDLE;
-
- if (srcRect.isNull() ||
- (srcRect.topLeft().isNull() && srcRect.size() == size)) {
- child = dstImage;
- } else {
- QRect src = srcRect.toRect();
- child = vgChildImage(dstImage, src.x(), src.y(), src.width(), src.height());
- }
-
- qt_vg_drawVGImage(painter, dest, child);
-
- if(child != dstImage)
- vgDestroyImage(child);
- QVGImagePool::instance()->releaseImage(0, dstImage);
-}
-
-#endif
-
-QT_END_NAMESPACE
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