daniel/QTeletextMaker
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Render the page with QImage instead of QPixmap

Browse Source
This commit is contained in:
G.K.MacGregor
2024-02-05 17:02:36 +00:00
parent 680130f26e
commit 37f7be7db1
3 changed files with 127 additions and 149 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
mainwidget.cpp
View File

@@ -105,11 +105,11 @@ void TeletextWidget::paintEvent(QPaintEvent *event)
QPainter widgetPainter(this);
m_pageRender.renderPage();
widgetPainter.drawPixmap(m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.pagePixmap(m_flashPhase), 0, 0, 480, 250);
widgetPainter.drawImage(m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 0, 0, 480, 250);
if (m_pageDecode.leftSidePanelColumns())
widgetPainter.drawPixmap(0, 0, *m_pageRender.pagePixmap(m_flashPhase), 864-m_pageDecode.leftSidePanelColumns()*12, 0, m_pageDecode.leftSidePanelColumns()*12, 250);
widgetPainter.drawImage(0, 0, *m_pageRender.image(m_flashPhase), 864-m_pageDecode.leftSidePanelColumns()*12, 0, m_pageDecode.leftSidePanelColumns()*12, 250);
if (m_pageDecode.rightSidePanelColumns())
widgetPainter.drawPixmap(480+m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.pagePixmap(m_flashPhase), 480, 0, m_pageDecode.rightSidePanelColumns()*12, 250);
widgetPainter.drawImage(480+m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 480, 0, m_pageDecode.rightSidePanelColumns()*12, 250);
}
void TeletextWidget::updateFlashTimer(int newFlashTimer)

249
render.cpp
View File

@@ -18,6 +18,8 @@
*/
#include <QBitmap>
#include <QColor>
#include <QImage>
#include <QPainter>
#include <QPixmap>
@@ -28,27 +30,31 @@
int TeletextFontBitmap::s_instances = 0;
QBitmap *TeletextFontBitmap::s_fontBitmap = nullptr;
QImage *TeletextFontBitmap::s_fontImage = nullptr;
TeletextFontBitmap::TeletextFontBitmap()
{
if (s_instances == 0)
if (s_instances == 0) {
s_fontBitmap = new QBitmap(":/images/teletextfont.png");
s_fontImage = new QImage(s_fontBitmap->toImage());
}
s_instances++;
}
TeletextFontBitmap::~TeletextFontBitmap()
{
s_instances--;
if (s_instances == 0)
if (s_instances == 0) {
delete s_fontImage;
delete s_fontBitmap;
}
}
TeletextPageRender::TeletextPageRender()
{
for (int i=0; i<6; i++)
m_pagePixmap[i] = new QPixmap(864, 250);
m_pagePixmap[0]->fill(Qt::transparent);
m_pageImage[i] = new QImage(864, 250, QImage::Format_ARGB32_Premultiplied);
m_reveal = false;
m_mix = false;
@@ -65,7 +71,7 @@ TeletextPageRender::TeletextPageRender()
TeletextPageRender::~TeletextPageRender()
{
for (int i=0; i<6; i++)
delete m_pagePixmap[i];
delete m_pageImage[i];
}
void TeletextPageRender::setDecoder(TeletextPageDecode *decoder)
@@ -73,180 +79,146 @@ void TeletextPageRender::setDecoder(TeletextPageDecode *decoder)
m_decoder = decoder;
}
inline void TeletextPageRender::drawFromBitmap(QPainter &pixmapPainter, int r, int c, const QBitmap bitmap, TeletextPageDecode::CharacterFragment characterFragment)
inline void TeletextPageRender::drawFromBitmap(QPainter &painter, int r, int c, const QImage image, TeletextPageDecode::CharacterFragment characterFragment)
{
switch (characterFragment) {
case TeletextPageDecode::NormalSize:
pixmapPainter.drawPixmap(c*12, r*10, bitmap);
painter.drawImage(c*12, r*10, image);
break;
case TeletextPageDecode::DoubleHeightTopHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 0, 0, 12, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 12, 5));
break;
case TeletextPageDecode::DoubleHeightBottomHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 0, 5, 12, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 5, 12, 5));
break;
case TeletextPageDecode::DoubleWidthLeftHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 0, 0, 6, 10);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 6, 10));
break;
case TeletextPageDecode::DoubleWidthRightHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 6, 0, 6, 10);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 0, 6, 10));
break;
case TeletextPageDecode::DoubleSizeTopLeftQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 0, 0, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 6, 5));
break;
case TeletextPageDecode::DoubleSizeTopRightQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 6, 0, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 0, 6, 5));
break;
case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 0, 5, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 5, 6, 5));
break;
case TeletextPageDecode::DoubleSizeBottomRightQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, bitmap, 6, 5, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 5, 6, 5));
break;
}
}
inline void TeletextPageRender::drawFromFontBitmap(QPainter &pixmapPainter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
inline void TeletextPageRender::drawFromFontBitmap(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
{
switch (characterFragment) {
case TeletextPageDecode::NormalSize:
pixmapPainter.drawPixmap(c*12, r*10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10, 12, 10);
painter.drawImage(c*12, r*10, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10, 12, 10);
break;
case TeletextPageDecode::DoubleHeightTopHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10, 12, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 12, 5));
break;
case TeletextPageDecode::DoubleHeightBottomHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10+5, 12, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10+5, 12, 5));
break;
case TeletextPageDecode::DoubleWidthLeftHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10, 6, 10);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 6, 10));
break;
case TeletextPageDecode::DoubleWidthRightHalf:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12+6, characterSet*10, 6, 10);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10, 6, 10));
break;
case TeletextPageDecode::DoubleSizeTopLeftQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 6, 5));
break;
case TeletextPageDecode::DoubleSizeTopRightQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12+6, characterSet*10, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10, 6, 5));
break;
case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10+5, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10+5, 6, 5));
break;
case TeletextPageDecode::DoubleSizeBottomRightQuarter:
pixmapPainter.drawPixmap(c*12, r*10, 12, 10, *m_fontBitmap.rawBitmap(), (characterCode-32)*12+6, characterSet*10+5, 6, 5);
painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10+5, 6, 5));
break;
}
}
inline void TeletextPageRender::drawCharacter(QPainter &pixmapPainter, int r, int c, unsigned char characterCode, int characterSet, int characterDiacritical, TeletextPageDecode::CharacterFragment characterFragment)
inline void TeletextPageRender::drawCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, int characterDiacritical, TeletextPageDecode::CharacterFragment characterFragment)
{
const bool dontUnderline = characterCode == 0x00;
if (dontUnderline)
characterCode = 0x20;
// If either foreground or background is set to transparent
// tinker with the QPainter settings so we get the desired result
if (!pixmapPainter.background().isOpaque()) {
if (pixmapPainter.pen().color().alpha() == 0) {
// Transparent foreground and background
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Clear);
pixmapPainter.eraseRect(c*12, r*10, 12, 10);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
return;
} else
// Transparent background, opaque foreground
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
} else if (pixmapPainter.pen().color().alpha() == 0) {
// Transparent foreground, opaque background
// Deal with optimising G1 solid 7/F blocks and spaces now
// otherwise the same optimisations later on won't work with
// our tinkered QPainter settings
if (characterCode == 0x7f && characterSet == 24) {
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Clear);
pixmapPainter.eraseRect(c*12, r*10, 12, 10);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
return;
}
pixmapPainter.fillRect(c*12, r*10, 12, 10, m_decoder->cellBackgroundQColor(r, c));
if (characterCode == 0x20 && characterSet < 25 && characterDiacritical == 0)
return;
pixmapPainter.setBackground(QColor(0, 0, 0, 0));
pixmapPainter.setPen(QColor(255, 255, 255, 255));
pixmapPainter.setCompositionMode(QPainter::CompositionMode_DestinationOut);
if (characterCode == 0x20 && characterSet < 25 && characterDiacritical == 0)
painter.fillRect(c*12, r*10, 12, 10, m_backgroundQColor);
else if (characterCode == 0x7f && characterSet == 24)
painter.fillRect(c*12, r*10, 12, 10, m_foregroundQColor);
else if ((m_decoder->cellBold(r, c) || m_decoder->cellItalic(r, c)) && characterSet < 24)
drawBoldOrItalicCharacter(painter, r, c, characterCode, characterSet, characterFragment);
else {
m_fontBitmap.image()->setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
drawFromFontBitmap(painter, r, c, characterCode, characterSet, characterFragment);
}
if (characterCode == 0x20 && characterSet < 25 && characterDiacritical == 0)
pixmapPainter.fillRect(c*12, r*10, 12, 10, pixmapPainter.background().color());
else if (characterCode == 0x7f && characterSet == 24)
pixmapPainter.fillRect(c*12, r*10, 12, 10, pixmapPainter.pen().color());
else if ((m_decoder->cellBold(r, c) || m_decoder->cellItalic(r, c)) && characterSet < 24)
drawBoldOrItalicCharacter(pixmapPainter, r, c, characterCode, characterSet, characterFragment);
else
drawFromFontBitmap(pixmapPainter, r, c, characterCode, characterSet, characterFragment);
if (m_decoder->cellUnderlined(r, c) && !dontUnderline)
if (m_decoder->cellUnderlined(r, c) && !dontUnderline) {
painter.setPen(m_foregroundQColor);
switch (characterFragment) {
case TeletextPageDecode::NormalSize:
case TeletextPageDecode::DoubleWidthLeftHalf:
case TeletextPageDecode::DoubleWidthRightHalf:
pixmapPainter.drawLine(c*12, r*10+9, c*12+11, r*10+9);
painter.drawLine(c*12, r*10+9, c*12+11, r*10+9);
break;
case TeletextPageDecode::DoubleHeightBottomHalf:
case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
case TeletextPageDecode::DoubleSizeBottomRightQuarter:
pixmapPainter.drawRect(c*12, r*10+8, 11, 1);
painter.drawRect(c*12, r*10+8, 11, 1);
break;
default:
break;
}
}
if (characterDiacritical != 0) {
pixmapPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
pixmapPainter.setBackgroundMode(Qt::TransparentMode);
drawFromFontBitmap(pixmapPainter, r, c, characterDiacritical+64, 7, characterFragment);
pixmapPainter.setBackgroundMode(Qt::OpaqueMode);
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
m_fontBitmap.image()->setColorTable(QVector<QRgb>{0x00000000, m_foregroundQColor.rgba()});
drawFromFontBitmap(painter, r, c, characterDiacritical+64, 7, characterFragment);
painter.setCompositionMode(QPainter::CompositionMode_Source);
}
if (pixmapPainter.compositionMode() != QPainter::CompositionMode_SourceOver)
pixmapPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
}
inline void TeletextPageRender::drawBoldOrItalicCharacter(QPainter &pixmapPainter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
inline void TeletextPageRender::drawBoldOrItalicCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
{
QBitmap bitmap = QBitmap(12, 10);
QPainter bitmapPainter;
QImage styledImage = QImage(12, 10, QImage::Format_Mono);
QPainter styledPainter;
m_fontBitmap.image()->setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
styledImage.setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
// TODO italic glyph-making is VERY slow!
if (m_decoder->cellItalic(r, c)) {
bitmap.clear();
styledImage.fill(0);
bitmapPainter.begin(&bitmap);
bitmapPainter.setBackgroundMode(Qt::OpaqueMode);
bitmapPainter.drawPixmap(1, 0, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10, 11, 3);
bitmapPainter.drawPixmap(0, 3, *m_fontBitmap.rawBitmap(), (characterCode-32)*12, characterSet*10+3, 12, 3);
bitmapPainter.drawPixmap(0, 6, *m_fontBitmap.rawBitmap(), (characterCode-32)*12+1, characterSet*10+6, 11, 4);
bitmapPainter.end();
styledPainter.begin(&styledImage);
styledPainter.setCompositionMode(QPainter::CompositionMode_Source);
styledPainter.drawImage(1, 0, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10, 11, 3);
styledPainter.drawImage(0, 3, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10+3, 12, 3);
styledPainter.drawImage(0, 6, *m_fontBitmap.image(), (characterCode-32)*12+1, characterSet*10+6, 11, 4);
styledPainter.end();
} else
bitmap = m_fontBitmap.rawBitmap()->copy((characterCode-32)*12, characterSet*10, 12, 10);
styledImage = m_fontBitmap.image()->copy((characterCode-32)*12, characterSet*10, 12, 10);
if (m_decoder->cellBold(r, c)) {
QBitmap boldeningBitmap;
QImage boldeningImage;
boldeningBitmap = bitmap.copy();
bitmapPainter.begin(&bitmap);
// No idea why we need this setPen workaround when character is made italic first?!
if (!m_decoder->cellItalic(r, c))
bitmapPainter.setPen(Qt::color0);
bitmapPainter.drawPixmap(1, 0, boldeningBitmap);
bitmapPainter.end();
boldeningImage = styledImage.copy();
styledPainter.begin(&styledImage);
styledPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
boldeningImage.setColorTable(QVector<QRgb>{0x00000000, m_foregroundQColor.rgba()});
styledPainter.drawImage(1, 0, boldeningImage);
styledPainter.end();
}
drawFromBitmap(pixmapPainter, r, c, bitmap, characterFragment);
drawFromBitmap(painter, r, c, styledImage, characterFragment);
}
void TeletextPageRender::renderPage(bool force)
@@ -257,12 +229,12 @@ void TeletextPageRender::renderPage(bool force)
void TeletextPageRender::renderRow(int r, int ph, bool force)
{
QPainter pixmapPainter;
QPainter painter;
int flashingRow = 0;
bool rowRefreshed = false;
pixmapPainter.begin(m_pagePixmap[ph]);
pixmapPainter.setBackgroundMode(Qt::OpaqueMode);
painter.begin(m_pageImage[ph]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
for (int c=0; c<72; c++) {
bool controlCodeChanged = false;
@@ -304,7 +276,7 @@ void TeletextPageRender::renderRow(int r, int ph, bool force)
}
if (m_decoder->cellFlashMode(r, c) == 0)
pixmapPainter.setPen(m_decoder->cellForegroundQColor(r, c));
m_foregroundQColor = m_decoder->cellForegroundQColor(r, c);
else {
// Flashing cell, decide if phase in this cycle is on or off
bool phaseOn;
@@ -316,9 +288,9 @@ void TeletextPageRender::renderRow(int r, int ph, bool force)
// If flashing to adjacent CLUT select the appropriate foreground colour
if (m_decoder->cellFlashMode(r, c) == 3 && !phaseOn)
pixmapPainter.setPen(m_decoder->cellFlashForegroundQColor(r, c));
m_foregroundQColor = m_decoder->cellFlashForegroundQColor(r, c);
else
pixmapPainter.setPen(m_decoder->cellForegroundQColor(r, c));
m_foregroundQColor = m_decoder->cellForegroundQColor(r, c);
// If flashing mode is Normal or Invert, draw a space instead of a character on phase
if ((m_decoder->cellFlashMode(r, c) == 1 || m_decoder->cellFlashMode(r, c) == 2) && !phaseOn) {
@@ -330,21 +302,22 @@ void TeletextPageRender::renderRow(int r, int ph, bool force)
}
if (!m_mix || m_decoder->cellBoxed(r, c))
pixmapPainter.setBackground(m_decoder->cellBackgroundQColor(r, c));
m_backgroundQColor = m_decoder->cellBackgroundQColor(r, c);
else
pixmapPainter.setBackground(Qt::transparent);
m_backgroundQColor = Qt::transparent;
drawCharacter(pixmapPainter, r, c, characterCode, characterSet, characterDiacritical, m_decoder->cellCharacterFragment(r, c));
drawCharacter(painter, r, c, characterCode, characterSet, characterDiacritical, m_decoder->cellCharacterFragment(r, c));
if (m_showControlCodes && c < 40 && m_decoder->teletextPage()->character(r, c) < 0x20) {
pixmapPainter.setBackground(QColor(0, 0, 0, 128));
pixmapPainter.setPen(QColor(255, 255, 255, 224));
pixmapPainter.drawPixmap(c*12, r*10, *m_fontBitmap.rawBitmap(), (m_decoder->teletextPage()->character(r, c)+32)*12, 250, 12, 10);
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
m_fontBitmap.image()->setColorTable(QVector<QRgb>{0x7f000000, 0xe0ffffff});
painter.drawImage(c*12, r*10, *m_fontBitmap.image(), (m_decoder->teletextPage()->character(r, c)+32)*12, 250, 12, 10);
painter.setCompositionMode(QPainter::CompositionMode_Source);
}
}
}
pixmapPainter.end();
painter.end();
if (ph != 0)
return;
@@ -361,30 +334,30 @@ void TeletextPageRender::renderRow(int r, int ph, bool force)
// copy this rendered line into the other flash pixmap buffers and then re-render
// the flashing cells in those buffers
if (rowRefreshed && m_flashBuffersHz > 0) {
pixmapPainter.begin(m_pagePixmap[3]);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
pixmapPainter.drawPixmap(0, r*10, *m_pagePixmap[0], 0, r*10, 864, 10);
pixmapPainter.end();
painter.begin(m_pageImage[3]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
painter.end();
renderRow(r, 3);
if (m_flashBuffersHz == 2) {
pixmapPainter.begin(m_pagePixmap[1]);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
pixmapPainter.drawPixmap(0, r*10, *m_pagePixmap[0], 0, r*10, 864, 10);
pixmapPainter.end();
pixmapPainter.begin(m_pagePixmap[2]);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
pixmapPainter.drawPixmap(0, r*10, *m_pagePixmap[0], 0, r*10, 864, 10);
pixmapPainter.end();
pixmapPainter.begin(m_pagePixmap[4]);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
pixmapPainter.drawPixmap(0, r*10, *m_pagePixmap[3], 0, r*10, 864, 10);
pixmapPainter.end();
pixmapPainter.begin(m_pagePixmap[5]);
pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
pixmapPainter.drawPixmap(0, r*10, *m_pagePixmap[3], 0, r*10, 864, 10);
pixmapPainter.end();
painter.begin(m_pageImage[1]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
painter.end();
painter.begin(m_pageImage[2]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
painter.end();
painter.begin(m_pageImage[4]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, r*10, *m_pageImage[3], 0, r*10, 864, 10);
painter.end();
painter.begin(m_pageImage[5]);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, r*10, *m_pageImage[3], 0, r*10, 864, 10);
painter.end();
renderRow(r, 1);
renderRow(r, 2);
@@ -427,12 +400,12 @@ void TeletextPageRender::setRowFlashStatus(int r, int rowFlashHz)
// If we get here, new flash Hz for this row is higher than the entire flash Hz
// so prepare the pixmap flash buffers
if (m_flashBuffersHz == 0)
*m_pagePixmap[3] = m_pagePixmap[0]->copy();
*m_pageImage[3] = m_pageImage[0]->copy();
if (rowFlashHz == 2) {
*m_pagePixmap[1] = m_pagePixmap[0]->copy();
*m_pagePixmap[2] = m_pagePixmap[0]->copy();
*m_pagePixmap[4] = m_pagePixmap[3]->copy();
*m_pagePixmap[5] = m_pagePixmap[3]->copy();
*m_pageImage[1] = m_pageImage[0]->copy();
*m_pageImage[2] = m_pageImage[0]->copy();
*m_pageImage[4] = m_pageImage[3]->copy();
*m_pageImage[5] = m_pageImage[3]->copy();
}
m_flashBuffersHz = rowFlashHz;

21
render.h
View File

@@ -21,6 +21,8 @@
#define RENDER_H
#include <QBitmap>
#include <QColor>
#include <QImage>
#include <QPixmap>
#include "decode.h"
@@ -32,10 +34,12 @@ public:
~TeletextFontBitmap();
QBitmap *rawBitmap() const { return s_fontBitmap; }
QImage *image() const { return s_fontImage; }
private:
static int s_instances;
static QBitmap* s_fontBitmap;
static QImage* s_fontImage;
};
class TeletextPageRender : public QObject
@@ -46,7 +50,7 @@ public:
TeletextPageRender();
~TeletextPageRender();
QPixmap* pagePixmap(int i) const { return m_pagePixmap[i]; };
QImage* image(int i) const { return m_pageImage[i]; };
bool mix() const { return m_mix; };
void setDecoder(TeletextPageDecode *decoder);
void renderPage(bool force=false);
@@ -63,20 +67,21 @@ signals:
protected:
TeletextFontBitmap m_fontBitmap;
QPixmap* m_pagePixmap[6];
QImage* m_pageImage[6];
unsigned char m_controlCodeCache[25][40];
bool m_reveal, m_mix, m_showControlCodes;
int m_flashBuffersHz;
int m_flashingRow[25];
private:
inline void drawFromBitmap(QPainter &, int, int, const QBitmap, TeletextPageDecode::CharacterFragment);
inline void drawFromFontBitmap(QPainter &, int, int, unsigned char, int, TeletextPageDecode::CharacterFragment);
inline void drawCharacter(QPainter &, int, int, unsigned char, int, int, TeletextPageDecode::CharacterFragment);
inline void drawBoldOrItalicCharacter(QPainter &, int, int, unsigned char, int, TeletextPageDecode::CharacterFragment);
void renderRow(int, int, bool force=false);
void setRowFlashStatus(int, int);
inline void drawFromBitmap(QPainter &, int, int, const QImage, TeletextPageDecode::CharacterFragment);
inline void drawFromFontBitmap(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment);
inline void drawCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, int characterDiacritical, TeletextPageDecode::CharacterFragment characterFragment);
inline void drawBoldOrItalicCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment);
void renderRow(int r, int ph, bool force=false);
void setRowFlashStatus(int r, int rowFlashHz);
QColor m_foregroundQColor, m_backgroundQColor;
TeletextPageDecode *m_decoder;
};