void QDirectFbBlitter::drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity)
{
QRect sQRect = subrect.toRect();
QRect dQRect = rect.toRect();
DFBRectangle sRect(sQRect.x(), sQRect.y(), sQRect.width(), sQRect.height());
DFBRectangle dRect(dQRect.x(), dQRect.y(), dQRect.width(), dQRect.height());
DFBResult result;
// skip if dst too small
if ((dRect.w <= 0) || (dRect.h <= 0)) return;
// correct roundings if needed
if (sRect.w <= 0) sRect.w = 1;
if (sRect.h <= 0) sRect.h = 1;
QDirectFbBlitterPlatformPixmap *blitPm = static_cast<QDirectFbBlitterPlatformPixmap *>(pixmap.handle());
QDirectFbBlitter *dfbBlitter = static_cast<QDirectFbBlitter *>(blitPm->blittable());
dfbBlitter->unlock();
IDirectFBSurface *s = dfbBlitter->m_surface.data();
DFBSurfaceBlittingFlags blittingFlags = DFBSurfaceBlittingFlags(DSBLIT_BLEND_ALPHACHANNEL);
DFBSurfacePorterDuffRule porterDuff = (cmode == QPainter::CompositionMode_SourceOver) ? DSPD_SRC_OVER : DSPD_SRC;
if (opacity != 1.0)
{
blittingFlags = DFBSurfaceBlittingFlags(blittingFlags | DSBLIT_BLEND_COLORALPHA | (m_premult ? DSBLIT_SRC_PREMULTCOLOR : 0));
m_surface->SetColor(m_surface.data(), 0xff, 0xff, 0xff, (u8) (opacity * 255.0));
}
m_surface->SetBlittingFlags(m_surface.data(), DFBSurfaceBlittingFlags(blittingFlags));
m_surface->SetPorterDuff(m_surface.data(), porterDuff);
if (cmode == QPainter::CompositionMode_SourceOver)
m_surface->SetDstBlendFunction(m_surface.data(), DSBF_INVSRCALPHA);
if ((sRect.w == dRect.w) && (sRect.h == dRect.h)) {
result = m_surface->Blit(m_surface.data(), s, &sRect, dRect.x, dRect.y);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmapOpacity()", result);
if (m_debugPaint)
drawDebugRect(QRect(dRect.x, dRect.y, sRect.w, sRect.h), QColor(Qt::green));
} else {
result = m_surface->StretchBlit(m_surface.data(), s, &sRect, &dRect);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmapOpacity()", result);
if (m_debugPaint)
drawDebugRect(QRect(dRect.x, dRect.y, dRect.w, dRect.h), QColor(Qt::red));
}
}
void QDirectFbBlitter::drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &srcRect)
{
QPixmapData *data = pixmap.pixmapData();
Q_ASSERT(data->width() && data->height());
Q_ASSERT(data->classId() == QPixmapData::BlitterClass);
QBlittablePixmapData *blitPm = static_cast<QBlittablePixmapData*>(data);
QDirectFbBlitter *dfbBlitter = static_cast<QDirectFbBlitter *>(blitPm->blittable());
dfbBlitter->unlock();
IDirectFBSurface *s = dfbBlitter->m_surface.data();
DFBSurfaceBlittingFlags blittingFlags = DSBLIT_NOFX;
DFBSurfacePorterDuffRule porterDuff = DSPD_SRC;
if (pixmap.hasAlpha()) {
blittingFlags = DSBLIT_BLEND_ALPHACHANNEL;
porterDuff = DSPD_SRC_OVER;
}
m_surface->SetBlittingFlags(m_surface.data(), DFBSurfaceBlittingFlags(blittingFlags));
m_surface->SetPorterDuff(m_surface.data(), porterDuff);
m_surface->SetDstBlendFunction(m_surface.data(), DSBF_INVSRCALPHA);
const DFBRectangle sRect = { srcRect.x(), srcRect.y(), srcRect.width(), srcRect.height() };
DFBResult result;
if (rect.width() == srcRect.width() && rect.height() == srcRect.height())
result = m_surface->Blit(m_surface.data(), s, &sRect, rect.x(), rect.y());
else {
const DFBRectangle dRect = { rect.x(), rect.y(), rect.width(), rect.height() };
result = m_surface->StretchBlit(m_surface.data(), s, &sRect, &dRect);
}
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmap()", result);
}
bool QDirectFbBlitter::drawCachedGlyphs(const QPaintEngineState *state, QFontEngine::GlyphFormat glyphFormat, int numGlyphs, const glyph_t *glyphs, const QFixedPoint *positions, QFontEngine *fontEngine)
{
void *cacheKey = QDirectFbConvenience::dfbInterface();
QDirectFbTextureGlyphCache *cache =
static_cast<QDirectFbTextureGlyphCache *>(fontEngine->glyphCache(cacheKey, glyphFormat, state->transform()));
if (!cache) {
cache = new QDirectFbTextureGlyphCache(glyphFormat, state->transform());
fontEngine->setGlyphCache(cacheKey, cache);
}
cache->populate(fontEngine, numGlyphs, glyphs, positions);
cache->fillInPendingGlyphs();
if (cache->image().width() == 0 || cache->image().height() == 0)
return false;
const int margin = fontEngine->glyphMargin(glyphFormat);
QVarLengthArray<DFBRectangle, 64> sourceRects(numGlyphs);
QVarLengthArray<DFBPoint, 64> destPoints(numGlyphs);
int nGlyphs = 0;
for (int i=0; i<numGlyphs; ++i) {
QFixed subPixelPosition = fontEngine->subPixelPositionForX(positions[i].x);
QTextureGlyphCache::GlyphAndSubPixelPosition glyph(glyphs[i], subPixelPosition);
const QTextureGlyphCache::Coord &c = cache->coords[glyph];
if (c.isNull())
continue;
int x = qFloor(positions[i].x) + c.baseLineX - margin;
int y = qRound(positions[i].y) - c.baseLineY - margin;
// printf("drawing [%d %d %d %d] baseline [%d %d], glyph: %d, to: %d %d, pos: %d %d\n",
// c.x, c.y,
// c.w, c.h,
// c.baseLineX, c.baseLineY,
// glyphs[i],
// x, y,
// positions[i].x.toInt(), positions[i].y.toInt());
sourceRects[nGlyphs].x = c.x;
sourceRects[nGlyphs].y = c.y;
sourceRects[nGlyphs].w = c.w;
sourceRects[nGlyphs].h = c.h;
destPoints[nGlyphs].x = x;
destPoints[nGlyphs].y = y;
++nGlyphs;
}
const QColor color = state->pen().color();
m_surface->SetColor(m_surface.data(), color.red(), color.green(), color.blue(), color.alpha());
m_surface->SetSrcBlendFunction(m_surface.data(), DSBF_SRCALPHA);
m_surface->SetDstBlendFunction(m_surface.data(), DSBF_INVSRCALPHA);
int flags = DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_COLORIZE;
if (color.alpha() != 0xff)
flags |= DSBLIT_BLEND_COLORALPHA;
m_surface->SetBlittingFlags(m_surface.data(), DFBSurfaceBlittingFlags(flags));
const QRasterPaintEngineState *rs = static_cast<const QRasterPaintEngineState*>(state);
if (rs->clip && rs->clip->enabled) {
Q_ASSERT(rs->clip->hasRectClip);
DFBRegion dfbClip;
dfbClip.x1 = rs->clip->clipRect.x();
dfbClip.y1 = rs->clip->clipRect.y();
dfbClip.x2 = rs->clip->clipRect.right();
dfbClip.y2 = rs->clip->clipRect.bottom();
m_surface->SetClip(m_surface.data(), &dfbClip);
}
m_surface->BatchBlit(m_surface.data(), cache->sourceSurface(), sourceRects.constData(), destPoints.constData(), nGlyphs);
if (m_debugPaint) {
for (int i = 0; i < nGlyphs; ++i) {
drawDebugRect(QRect(destPoints[i].x, destPoints[i].y, sourceRects[i].w, sourceRects[i].h), QColor(Qt::yellow));
}
}
if (rs->clip && rs->clip->enabled)
m_surface->SetClip(m_surface.data(), 0);
return true;
}
