void
PaintContext(gfxPattern* aPattern,
const nsIntRegion& aVisible,
float aOpacity,
gfxContext* aContext,
Layer* aMaskLayer)
{
// Set PAD mode so that when the video is being scaled, we do not sample
// outside the bounds of the video image.
gfxPattern::GraphicsExtend extend = gfxPattern::EXTEND_PAD;
#ifdef MOZ_X11
// PAD is slow with cairo and old X11 servers, so prefer speed over
// correctness and use NONE.
if (aContext->IsCairo()) {
nsRefPtr<gfxASurface> target = aContext->CurrentSurface();
if (target->GetType() == gfxASurface::SurfaceTypeXlib &&
static_cast<gfxXlibSurface*>(target.get())->IsPadSlow()) {
extend = gfxPattern::EXTEND_NONE;
}
}
#endif
aContext->NewPath();
// No need to snap here; our transform has already taken care of it.
// XXX true for arbitrary regions? Don't care yet though
gfxUtils::PathFromRegion(aContext, aVisible);
aPattern->SetExtend(extend);
aContext->SetPattern(aPattern);
FillWithMask(aContext, aOpacity, aMaskLayer);
// Reset extend mode for callers that need to reuse the pattern
aPattern->SetExtend(extend);
}
void
BasicCanvasLayer::PaintWithOpacity(gfxContext* aContext,
float aOpacity,
Layer* aMaskLayer)
{
NS_ASSERTION(BasicManager()->InDrawing(),
"Can only draw in drawing phase");
if (!mSurface) {
NS_WARNING("No valid surface to draw!");
return;
}
nsRefPtr<gfxPattern> pat = new gfxPattern(mSurface);
pat->SetFilter(mFilter);
pat->SetExtend(gfxPattern::EXTEND_PAD);
gfxMatrix m;
if (mNeedsYFlip) {
m = aContext->CurrentMatrix();
aContext->Translate(gfxPoint(0.0, mBounds.height));
aContext->Scale(1.0, -1.0);
}
// If content opaque, then save off current operator and set to source.
// This ensures that alpha is not applied even if the source surface
// has an alpha channel
gfxContext::GraphicsOperator savedOp;
if (GetContentFlags() & CONTENT_OPAQUE) {
savedOp = aContext->CurrentOperator();
aContext->SetOperator(gfxContext::OPERATOR_SOURCE);
}
AutoSetOperator setOperator(aContext, GetOperator());
aContext->NewPath();
// No need to snap here; our transform is already set up to snap our rect
aContext->Rectangle(gfxRect(0, 0, mBounds.width, mBounds.height));
aContext->SetPattern(pat);
FillWithMask(aContext, aOpacity, aMaskLayer);
#if defined (MOZ_X11) && defined (MOZ_EGL_XRENDER_COMPOSITE)
if (mGLContext && !mForceReadback) {
// Wait for X to complete all operations before continuing
// Otherwise gl context could get cleared before X is done.
mGLContext->WaitNative();
}
#endif
// Restore surface operator
if (GetContentFlags() & CONTENT_OPAQUE) {
aContext->SetOperator(savedOp);
}
if (mNeedsYFlip) {
aContext->SetMatrix(m);
}
}
void
CopyableCanvasLayer::PaintWithOpacity(gfxContext* aContext,
float aOpacity,
Layer* aMaskLayer,
gfxContext::GraphicsOperator aOperator)
{
if (!mSurface) {
NS_WARNING("No valid surface to draw!");
return;
}
nsRefPtr<gfxPattern> pat = new gfxPattern(mSurface);
pat->SetFilter(mFilter);
pat->SetExtend(gfxPattern::EXTEND_PAD);
gfxMatrix m;
if (mNeedsYFlip) {
m = aContext->CurrentMatrix();
aContext->Translate(gfxPoint(0.0, mBounds.height));
aContext->Scale(1.0, -1.0);
}
// If content opaque, then save off current operator and set to source.
// This ensures that alpha is not applied even if the source surface
// has an alpha channel
gfxContext::GraphicsOperator savedOp;
if (GetContentFlags() & CONTENT_OPAQUE) {
savedOp = aContext->CurrentOperator();
aContext->SetOperator(gfxContext::OPERATOR_SOURCE);
}
AutoSetOperator setOperator(aContext, aOperator);
aContext->NewPath();
// No need to snap here; our transform is already set up to snap our rect
aContext->Rectangle(gfxRect(0, 0, mBounds.width, mBounds.height));
aContext->SetPattern(pat);
FillWithMask(aContext, aOpacity, aMaskLayer);
// Restore surface operator
if (GetContentFlags() & CONTENT_OPAQUE) {
aContext->SetOperator(savedOp);
}
if (mNeedsYFlip) {
aContext->SetMatrix(m);
}
}
void
BasicShadowCanvasLayer::Paint(gfxContext* aContext, Layer* aMaskLayer)
{
NS_ASSERTION(BasicManager()->InDrawing(),
"Can only draw in drawing phase");
if (!IsSurfaceDescriptorValid(mFrontSurface)) {
return;
}
AutoOpenSurface autoSurface(OPEN_READ_ONLY, mFrontSurface);
nsRefPtr<gfxPattern> pat = new gfxPattern(autoSurface.Get());
pat->SetFilter(mFilter);
pat->SetExtend(gfxPattern::EXTEND_PAD);
gfxRect r(0, 0, mBounds.width, mBounds.height);
gfxMatrix m;
if (mNeedsYFlip) {
m = aContext->CurrentMatrix();
aContext->Translate(gfxPoint(0.0, mBounds.height));
aContext->Scale(1.0, -1.0);
}
AutoSetOperator setOperator(aContext, GetOperator());
aContext->NewPath();
// No need to snap here; our transform has already taken care of it
aContext->Rectangle(r);
aContext->SetPattern(pat);
FillWithMask(aContext, GetEffectiveOpacity(), aMaskLayer);
if (mNeedsYFlip) {
aContext->SetMatrix(m);
}
}
