void Init(SkCanvas *aCanvas, const DrawOptions& aOptions)
{
mPaint.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
mCanvas = aCanvas;
//TODO: Can we set greyscale somehow?
if (aOptions.mAntialiasMode != AntialiasMode::NONE) {
mPaint.setAntiAlias(true);
} else {
mPaint.setAntiAlias(false);
}
// TODO: We could skip the temporary for operator_source and just
// clear the clip rect. The other operators would be harder
// but could be worth it to skip pushing a group.
if (!IsOperatorBoundByMask(aOptions.mCompositionOp)) {
mPaint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
SkPaint temp;
temp.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
temp.setAlpha(U8CPU(aOptions.mAlpha*255));
//TODO: Get a rect here
mCanvas->saveLayer(nullptr, &temp);
mNeedsRestore = true;
} else {
mPaint.setAlpha(U8CPU(aOptions.mAlpha*255.0));
mAlpha = aOptions.mAlpha;
}
mPaint.setFilterBitmap(true);
}
void Init(SkCanvas *aCanvas, const DrawOptions& aOptions, const Rect* aMaskBounds)
{
mPaint.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
mCanvas = aCanvas;
//TODO: Can we set greyscale somehow?
if (aOptions.mAntialiasMode != AntialiasMode::NONE) {
mPaint.setAntiAlias(true);
} else {
mPaint.setAntiAlias(false);
}
Rect clipBounds = GetClipBounds(aCanvas);
bool needsGroup = !IsOperatorBoundByMask(aOptions.mCompositionOp) &&
(!aMaskBounds || !aMaskBounds->Contains(clipBounds));
// TODO: We could skip the temporary for operator_source and just
// clear the clip rect. The other operators would be harder
// but could be worth it to skip pushing a group.
if (needsGroup) {
mPaint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
SkPaint temp;
temp.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
temp.setAlpha(U8CPU(aOptions.mAlpha*255+0.5));
//TODO: Get a rect here
mCanvas->saveLayer(nullptr, &temp);
mNeedsRestore = true;
} else {
mPaint.setAlpha(U8CPU(aOptions.mAlpha*255.0+0.5));
mAlpha = aOptions.mAlpha;
}
mPaint.setFilterLevel(SkPaint::kLow_FilterLevel);
}
void
BasicCompositor::DrawQuad(const gfx::Rect& aRect,
const gfx::Rect& aClipRect,
const EffectChain &aEffectChain,
gfx::Float aOpacity,
const gfx::Matrix4x4& aTransform,
const gfx::Rect& aVisibleRect)
{
RefPtr<DrawTarget> buffer = mRenderTarget->mDrawTarget;
// For 2D drawing, |dest| and |buffer| are the same surface. For 3D drawing,
// |dest| is a temporary surface.
RefPtr<DrawTarget> dest = buffer;
AutoRestoreTransform autoRestoreTransform(dest);
Matrix newTransform;
Rect transformBounds;
Matrix4x4 new3DTransform;
IntPoint offset = mRenderTarget->GetOrigin();
if (aTransform.Is2D()) {
newTransform = aTransform.As2D();
} else {
// Create a temporary surface for the transform.
dest = gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(RoundOut(aRect).Size(), SurfaceFormat::B8G8R8A8);
if (!dest) {
return;
}
dest->SetTransform(Matrix::Translation(-aRect.x, -aRect.y));
// Get the bounds post-transform.
transformBounds = aTransform.TransformAndClipBounds(aRect, Rect(offset.x, offset.y, buffer->GetSize().width, buffer->GetSize().height));
transformBounds.RoundOut();
if (transformBounds.IsEmpty()) {
return;
}
// Propagate the coordinate offset to our 2D draw target.
newTransform = Matrix::Translation(transformBounds.x, transformBounds.y);
// When we apply the 3D transformation, we do it against a temporary
// surface, so undo the coordinate offset.
new3DTransform = Matrix4x4::Translation(aRect.x, aRect.y, 0) * aTransform;
}
buffer->PushClipRect(aClipRect);
newTransform.PostTranslate(-offset.x, -offset.y);
buffer->SetTransform(newTransform);
RefPtr<SourceSurface> sourceMask;
Matrix maskTransform;
if (aEffectChain.mSecondaryEffects[EffectTypes::MASK]) {
EffectMask *effectMask = static_cast<EffectMask*>(aEffectChain.mSecondaryEffects[EffectTypes::MASK].get());
sourceMask = effectMask->mMaskTexture->AsSourceBasic()->GetSurface(dest);
if (!sourceMask) {
gfxWarning() << "Invalid sourceMask effect";
}
MOZ_ASSERT(effectMask->mMaskTransform.Is2D(), "How did we end up with a 3D transform here?!");
MOZ_ASSERT(!effectMask->mIs3D);
maskTransform = effectMask->mMaskTransform.As2D();
maskTransform.PreTranslate(-offset.x, -offset.y);
}
CompositionOp blendMode = CompositionOp::OP_OVER;
if (Effect* effect = aEffectChain.mSecondaryEffects[EffectTypes::BLEND_MODE].get()) {
blendMode = static_cast<EffectBlendMode*>(effect)->mBlendMode;
}
switch (aEffectChain.mPrimaryEffect->mType) {
case EffectTypes::SOLID_COLOR: {
EffectSolidColor* effectSolidColor =
static_cast<EffectSolidColor*>(aEffectChain.mPrimaryEffect.get());
bool unboundedOp = !IsOperatorBoundByMask(blendMode);
if (unboundedOp) {
dest->PushClipRect(aRect);
}
FillRectWithMask(dest, aRect, effectSolidColor->mColor,
DrawOptions(aOpacity, blendMode), sourceMask, &maskTransform);
if (unboundedOp) {
dest->PopClip();
}
break;
}
case EffectTypes::RGB: {
TexturedEffect* texturedEffect =
static_cast<TexturedEffect*>(aEffectChain.mPrimaryEffect.get());
TextureSourceBasic* source = texturedEffect->mTexture->AsSourceBasic();
if (source && texturedEffect->mPremultiplied) {
DrawSurfaceWithTextureCoords(dest, aRect,
source->GetSurface(dest),
texturedEffect->mTextureCoords,
texturedEffect->mFilter,
DrawOptions(aOpacity, blendMode),
sourceMask, &maskTransform);
} else if (source) {
SourceSurface* srcSurf = source->GetSurface(dest);
if (srcSurf) {
RefPtr<DataSourceSurface> srcData = srcSurf->GetDataSurface();
// Yes, we re-create the premultiplied data every time.
// This might be better with a cache, eventually.
RefPtr<DataSourceSurface> premultData = gfxUtils::CreatePremultipliedDataSurface(srcData);
DrawSurfaceWithTextureCoords(dest, aRect,
premultData,
texturedEffect->mTextureCoords,
texturedEffect->mFilter,
DrawOptions(aOpacity, blendMode),
sourceMask, &maskTransform);
}
} else {
gfxDevCrash(LogReason::IncompatibleBasicTexturedEffect) << "Bad for basic with " << texturedEffect->mTexture->Name() << " and " << gfx::hexa(sourceMask);
}
break;
}
case EffectTypes::YCBCR: {
NS_RUNTIMEABORT("Can't (easily) support component alpha with BasicCompositor!");
break;
}
case EffectTypes::RENDER_TARGET: {
EffectRenderTarget* effectRenderTarget =
static_cast<EffectRenderTarget*>(aEffectChain.mPrimaryEffect.get());
RefPtr<BasicCompositingRenderTarget> surface
= static_cast<BasicCompositingRenderTarget*>(effectRenderTarget->mRenderTarget.get());
RefPtr<SourceSurface> sourceSurf = surface->mDrawTarget->Snapshot();
DrawSurfaceWithTextureCoords(dest, aRect,
sourceSurf,
effectRenderTarget->mTextureCoords,
effectRenderTarget->mFilter,
DrawOptions(aOpacity, blendMode),
sourceMask, &maskTransform);
break;
}
case EffectTypes::COMPONENT_ALPHA: {
NS_RUNTIMEABORT("Can't (easily) support component alpha with BasicCompositor!");
break;
}
default: {
NS_RUNTIMEABORT("Invalid effect type!");
break;
}
}
if (!aTransform.Is2D()) {
dest->Flush();
RefPtr<SourceSurface> snapshot = dest->Snapshot();
RefPtr<DataSourceSurface> source = snapshot->GetDataSurface();
RefPtr<DataSourceSurface> temp =
Factory::CreateDataSourceSurface(RoundOut(transformBounds).Size(), SurfaceFormat::B8G8R8A8
#ifdef MOZ_ENABLE_SKIA
, true
#endif
);
if (NS_WARN_IF(!temp)) {
buffer->PopClip();
return;
}
Transform(temp, source, new3DTransform, transformBounds.TopLeft());
transformBounds.MoveTo(0, 0);
buffer->DrawSurface(temp, transformBounds, transformBounds);
}
buffer->PopClip();
}
