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DirectFB: Add QT_DIRECTFB_BLITTER_DEBUGPAINT environment variable 

This environment variable will paint an overlay on each paint command
that is using the accelerated blitter path for DirectFB.  This is useful
when you want to assure that you are taking advantage of the DirectFB
blitter.

Change-Id: I6e374754825794daf9c1bf40bee2b963e752a8e9
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
bb10
Andy Nichols 2014-09-03 16:40:19 +02:00
parent 633647334c
commit c68ef6d2c0
2 changed files with 67 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/plugins/platforms/directfb/qdirectfbblitter.cpp
View File

@ -65,17 +65,22 @@ static QBlittable::Capabilities dfb_blitter_capabilities()
QDirectFbBlitter::QDirectFbBlitter(const QSize &rect, IDirectFBSurface *surface)
: QBlittable(rect, dfb_blitter_capabilities())
, m_surface(surface)
, m_surface(surface)
, m_debugPaint(false)
{
m_surface->AddRef(m_surface.data());
DFBSurfaceCapabilities surfaceCaps;
m_surface->GetCapabilities(m_surface.data(), &surfaceCaps);
m_premult = (surfaceCaps & DSCAPS_PREMULTIPLIED);
if (qgetenv("QT_DIRECTFB_BLITTER_DEBUGPAINT").toInt())
m_debugPaint = true;
}
QDirectFbBlitter::QDirectFbBlitter(const QSize &rect, bool alpha)
: QBlittable(rect, dfb_blitter_capabilities()), m_premult(false)
: QBlittable(rect, dfb_blitter_capabilities())
, m_premult(false)
, m_debugPaint(false)
{
DFBSurfaceDescription surfaceDesc;
memset(&surfaceDesc,0,sizeof(DFBSurfaceDescription));
@ -95,6 +100,9 @@ QDirectFbBlitter::QDirectFbBlitter(const QSize &rect, bool alpha)
surfaceDesc.pixelformat = QDirectFbBlitter::pixmapFormat();
}
if (qgetenv("QT_DIRECTFB_BLITTER_DEBUGPAINT").toInt())
m_debugPaint = true;
IDirectFB *dfb = QDirectFbConvenience::dfbInterface();
dfb->CreateSurface(dfb , &surfaceDesc, m_surface.outPtr());
m_surface->Clear(m_surface.data(), 0, 0, 0, 0);
@ -165,6 +173,8 @@ void QDirectFbBlitter::alphaFillRect(const QRectF &rect, const QColor &color, QP
result = m_surface->FillRectangle(m_surface.data(), x, y, w, h);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::alphaFillRect()", result);
if (m_debugPaint)
drawDebugRect(QRect(x, y, w, h), QColor(Qt::blue));
}
void QDirectFbBlitter::drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity)
@ -203,13 +213,19 @@ void QDirectFbBlitter::drawPixmapOpacity(const QRectF &rect, const QPixmap &pixm
if (cmode == QPainter::CompositionMode_SourceOver)
m_surface->SetDstBlendFunction(m_surface.data(), DSBF_INVSRCALPHA);
if ((sRect.w == dRect.w) && (sRect.h == dRect.h))
if ((sRect.w == dRect.w) && (sRect.h == dRect.h)) {
result = m_surface->Blit(m_surface.data(), s, &sRect, dRect.x, dRect.y);
else
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::drawPixmapExtended()", result);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmapOpacity()", result);
if (m_debugPaint)
drawDebugRect(QRect(dRect.x, dRect.y, dRect.w, dRect.h), QColor(Qt::red));
}
}
bool QDirectFbBlitter::drawCachedGlyphs(const QPaintEngineState *state, QFontEngine::GlyphFormat glyphFormat, int numGlyphs, const glyph_t *glyphs, const QFixedPoint *positions, QFontEngine *fontEngine)
@ -287,6 +303,12 @@ bool QDirectFbBlitter::drawCachedGlyphs(const QPaintEngineState *state, QFontEng
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;
@ -403,6 +425,41 @@ void QDirectFbBlitter::doUnlock()
m_surface->Unlock(m_surface.data());
}
void QDirectFbBlitter::drawDebugRect(const QRect &rect, const QColor &color)
{
int x, y, w, h;
DFBResult result;
// check parameters
rect.getRect(&x, &y ,&w, &h);
if ((w <= 0) || (h <= 0)) return;
m_surface->SetDrawingFlags(m_surface.data(),
DFBSurfaceDrawingFlags(m_premult ? (DSDRAW_BLEND | DSDRAW_SRC_PREMULTIPLY) : DSDRAW_BLEND));
m_surface->SetPorterDuff(m_surface.data(), DSPD_SRC_OVER);
// set color
m_surface->SetColor(m_surface.data(), color.red(), color.green(), color.blue(), 120);
result = m_surface->DrawLine(m_surface.data(), x, y, x + w-1, y);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawDebugRect()", result);
result = m_surface->DrawLine(m_surface.data(), x + w-1, y, x + w-1, y + h-1);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawDebugRect()", result);
result = m_surface->DrawLine(m_surface.data(), x + w-1, y + h-1, x, y + h-1);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawDebugRect()", result);
result = m_surface->DrawLine(m_surface.data(), x, y + h-1, x, y);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawDebugRect()", result);
m_surface->SetColor(m_surface.data(), color.red(), color.green(), color.blue(), 10);
result = m_surface->FillRectangle(m_surface.data(), x, y, w, h);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawDebugRect()", result);
}
void QDirectFbTextureGlyphCache::resizeTextureData(int width, int height)
{
m_surface.reset();;

3
src/plugins/platforms/directfb/qdirectfbblitter.h
View File

@ -79,7 +79,10 @@ protected:
friend class QDirectFbConvenience;
private:
void drawDebugRect(const QRect &rect, const QColor &color);
bool m_premult;
bool m_debugPaint;
};
class QDirectFbBlitterPlatformPixmap : public QBlittablePlatformPixmap