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#include "qpixmap_blitter_p.h"
#include <qpainter.h>
#include <qimage.h>
#include <private/qapplication_p.h>
#include <private/qgraphicssystem_p.h>
#include <private/qblittable_p.h>
#include <private/qdrawhelper_p.h>
#ifndef QT_NO_BLITTABLE
QT_BEGIN_NAMESPACE
static int global_ser_no = 0;
QBlittablePixmapData::QBlittablePixmapData()
: QPixmapData(QPixmapData::PixmapType,BlitterClass), m_engine(0), m_blittable(0)
#ifdef QT_BLITTER_RASTEROVERLAY
,m_rasterOverlay(0), m_unmergedCopy(0)
#endif //QT_BLITTER_RASTEROVERLAY
{
setSerialNumber(++global_ser_no);
}
QBlittablePixmapData::~QBlittablePixmapData()
{
delete m_blittable;
delete m_engine;
#ifdef QT_BLITTER_RASTEROVERLAY
delete m_rasterOverlay;
delete m_unmergedCopy;
#endif //QT_BLITTER_RASTEROVERLAY
}
QBlittable *QBlittablePixmapData::blittable() const
{
if (!m_blittable) {
QBlittablePixmapData *that = const_cast<QBlittablePixmapData *>(this);
that->m_blittable = this->createBlittable(QSize(w,h));
}
return m_blittable;
}
void QBlittablePixmapData::setBlittable(QBlittable *blittable)
{
resize(blittable->size().width(),blittable->size().height());
m_blittable = blittable;
}
void QBlittablePixmapData::resize(int width, int height)
{
delete m_blittable;
m_blittable = 0;
delete m_engine;
m_engine = 0;
#ifdef Q_WS_QPA
d = QApplicationPrivate::platformIntegration()->screens().at(0)->depth();
#endif
w = width;
h = height;
is_null = (w <= 0 || h <= 0);
}
extern int qt_defaultDpiX();
extern int qt_defaultDpiY();
int QBlittablePixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
{
switch (metric) {
case QPaintDevice::PdmWidth:
return w;
case QPaintDevice::PdmHeight:
return h;
case QPaintDevice::PdmWidthMM:
return qRound(w * 25.4 / qt_defaultDpiX());
case QPaintDevice::PdmHeightMM:
return qRound(h * 25.4 / qt_defaultDpiY());
case QPaintDevice::PdmDepth:
return 32;
case QPaintDevice::PdmDpiX: // fall-through
case QPaintDevice::PdmPhysicalDpiX:
return qt_defaultDpiX();
case QPaintDevice::PdmDpiY: // fall-through
case QPaintDevice::PdmPhysicalDpiY:
return qt_defaultDpiY();
default:
qWarning("QRasterPixmapData::metric(): Unhandled metric type %d", metric);
break;
}
return 0;
}
void QBlittablePixmapData::fill(const QColor &color)
{
//jlind: todo: change when blittables can support non opaque fillRects
if (color.alpha() == 255 && blittable()->capabilities() & QBlittable::SolidRectCapability) {
blittable()->unlock();
blittable()->fillRect(QRectF(0,0,w,h),color);
}else {
uint pixel;
switch (blittable()->lock()->format()) {
case QImage::Format_ARGB32_Premultiplied:
pixel = PREMUL(color.rgba());
break;
case QImage::Format_ARGB8565_Premultiplied:
pixel = qargb8565(color.rgba()).rawValue();
break;
case QImage::Format_ARGB8555_Premultiplied:
pixel = qargb8555(color.rgba()).rawValue();
break;
case QImage::Format_ARGB6666_Premultiplied:
pixel = qargb6666(color.rgba()).rawValue();
break;
case QImage::Format_ARGB4444_Premultiplied:
pixel = qargb4444(color.rgba()).rawValue();
break;
default:
pixel = color.rgba();
break;
}
//so premultiplied formats are supported and ARGB32 and RGB32
blittable()->lock()->fill(pixel);
}
}
QImage *QBlittablePixmapData::buffer()
{
return blittable()->lock();
}
QImage QBlittablePixmapData::toImage() const
{
return blittable()->lock()->copy();
}
bool QBlittablePixmapData::hasAlphaChannel() const
{
return blittable()->lock()->hasAlphaChannel();
}
void QBlittablePixmapData::fromImage(const QImage &image,
Qt::ImageConversionFlags flags)
{
resize(image.width(),image.height());
markRasterOverlay(QRect(0,0,w,h));
QImage *thisImg = buffer();
QImage correctFormatPic = image;
if (correctFormatPic.format() != thisImg->format())
correctFormatPic = correctFormatPic.convertToFormat(thisImg->format(), flags);
uchar *mem = thisImg->bits();
const uchar *bits = correctFormatPic.bits();
int bytesCopied = 0;
while (bytesCopied < correctFormatPic.byteCount()) {
memcpy(mem,bits,correctFormatPic.bytesPerLine());
mem += thisImg->bytesPerLine();
bits += correctFormatPic.bytesPerLine();
bytesCopied+=correctFormatPic.bytesPerLine();
}
}
QPaintEngine *QBlittablePixmapData::paintEngine() const
{
if (!m_engine) {
QBlittablePixmapData *that = const_cast<QBlittablePixmapData *>(this);
that->m_engine = new QBlitterPaintEngine(that);
}
return m_engine;
}
#ifdef QT_BLITTER_RASTEROVERLAY
static bool showRasterOverlay = !qgetenv("QT_BLITTER_RASTEROVERLAY").isEmpty();
void QBlittablePixmapData::mergeOverlay()
{
if (m_unmergedCopy || !showRasterOverlay)
return;
m_unmergedCopy = new QImage(buffer()->copy());
QPainter p(buffer());
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
p.drawImage(0,0,*overlay());
p.end();
}
void QBlittablePixmapData::unmergeOverlay()
{
if (!m_unmergedCopy || !showRasterOverlay)
return;
QPainter p(buffer());
p.setCompositionMode(QPainter::CompositionMode_Source);
p.drawImage(0,0,*m_unmergedCopy);
p.end();
delete m_unmergedCopy;
m_unmergedCopy = 0;
}
QImage *QBlittablePixmapData::overlay()
{
if (!m_rasterOverlay||
m_rasterOverlay->size() != QSize(w,h)){
m_rasterOverlay = new QImage(w,h,QImage::Format_ARGB32_Premultiplied);
m_rasterOverlay->fill(0x00000000);
uint color = (qrand() % 11)+7;
m_overlayColor = QColor(Qt::GlobalColor(color));
m_overlayColor.setAlpha(0x88);
}
return m_rasterOverlay;
}
void QBlittablePixmapData::markRasterOverlayImpl(const QRectF &rect)
{
if (!showRasterOverlay)
return;
QRectF transformationRect = clipAndTransformRect(rect);
if(!transformationRect.isEmpty()) {
QPainter p(overlay());
p.setBrush(m_overlayColor);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(transformationRect,QBrush(m_overlayColor));
}
}
void QBlittablePixmapData::unmarkRasterOverlayImpl(const QRectF &rect)
{
if (!showRasterOverlay)
return;
QRectF transformationRect = clipAndTransformRect(rect);
if (!transformationRect.isEmpty()) {
QPainter p(overlay());
QColor color(0x00,0x00,0x00,0x00);
p.setBrush(color);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(transformationRect,QBrush(color));
}
}
QRectF QBlittablePixmapData::clipAndTransformRect(const QRectF &rect) const
{
QRectF transformationRect = rect;
paintEngine();
if (m_engine->state()) {
transformationRect = m_engine->state()->matrix.mapRect(rect);
const QClipData *clipData = m_engine->clip();
if (clipData) {
if (clipData->hasRectClip) {
transformationRect &= clipData->clipRect;
} else if (clipData->hasRegionClip) {
const QVector<QRect> rects = clipData->clipRegion.rects();
for (int i = 0; i < rects.size(); i++) {
transformationRect &= rects.at(i);
}
}
}
}
return transformationRect;
}
QT_END_NAMESPACE
#endif //QT_BLITTER_RASTEROVERLAY
#endif //QT_NO_BLITTABLE
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