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-rw-r--r--gfx/layers/basic/BasicLayersImpl.cpp219
1 files changed, 219 insertions, 0 deletions
diff --git a/gfx/layers/basic/BasicLayersImpl.cpp b/gfx/layers/basic/BasicLayersImpl.cpp
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+++ b/gfx/layers/basic/BasicLayersImpl.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "BasicLayersImpl.h"
+#include <new> // for operator new
+#include "Layers.h" // for Layer, etc
+#include "basic/BasicImplData.h" // for BasicImplData
+#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
+#include "mozilla/DebugOnly.h" // for DebugOnly
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/layers/ISurfaceAllocator.h"
+#include "AutoMaskData.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace mozilla::gfx;
+
+bool GetMaskData(Layer* aMaskLayer, const Point& aDeviceOffset,
+ AutoMoz2DMaskData* aMaskData) {
+ if (aMaskLayer) {
+ RefPtr<SourceSurface> surface =
+ static_cast<BasicImplData*>(aMaskLayer->ImplData())
+ ->GetAsSourceSurface();
+ if (surface) {
+ Matrix transform;
+ Matrix4x4 effectiveTransform = aMaskLayer->GetEffectiveTransform();
+ DebugOnly<bool> maskIs2D = effectiveTransform.CanDraw2D(&transform);
+ NS_ASSERTION(maskIs2D, "How did we end up with a 3D transform here?!");
+ transform.PostTranslate(-aDeviceOffset.x, -aDeviceOffset.y);
+ aMaskData->Construct(transform, surface);
+ return true;
+ }
+ }
+ return false;
+}
+
+already_AddRefed<SourceSurface> GetMaskForLayer(Layer* aLayer,
+ Matrix* aMaskTransform) {
+ if (!aLayer->GetMaskLayer()) {
+ return nullptr;
+ }
+
+ MOZ_ASSERT(aMaskTransform);
+
+ AutoMoz2DMaskData mask;
+ if (GetMaskData(aLayer->GetMaskLayer(), Point(), &mask)) {
+ *aMaskTransform = mask.GetTransform();
+ RefPtr<SourceSurface> surf = mask.GetSurface();
+ return surf.forget();
+ }
+
+ return nullptr;
+}
+
+void PaintWithMask(gfxContext* aContext, float aOpacity, Layer* aMaskLayer) {
+ AutoMoz2DMaskData mask;
+ if (GetMaskData(aMaskLayer, Point(), &mask)) {
+ aContext->SetMatrix(mask.GetTransform());
+ aContext->Mask(mask.GetSurface(), aOpacity);
+ return;
+ }
+
+ // if there is no mask, just paint normally
+ aContext->Paint(aOpacity);
+}
+
+void FillRectWithMask(DrawTarget* aDT, const Rect& aRect,
+ const DeviceColor& aColor, const DrawOptions& aOptions,
+ SourceSurface* aMaskSource,
+ const Matrix* aMaskTransform) {
+ if (aMaskSource && aMaskTransform) {
+ aDT->PushClipRect(aRect);
+ Matrix oldTransform = aDT->GetTransform();
+
+ aDT->SetTransform(*aMaskTransform);
+ aDT->MaskSurface(ColorPattern(aColor), aMaskSource, Point(), aOptions);
+ aDT->SetTransform(oldTransform);
+ aDT->PopClip();
+ return;
+ }
+
+ aDT->FillRect(aRect, ColorPattern(aColor), aOptions);
+}
+void FillRectWithMask(DrawTarget* aDT, const gfx::Point& aDeviceOffset,
+ const Rect& aRect, const DeviceColor& aColor,
+ const DrawOptions& aOptions, Layer* aMaskLayer) {
+ AutoMoz2DMaskData mask;
+ if (GetMaskData(aMaskLayer, aDeviceOffset, &mask)) {
+ const Matrix& maskTransform = mask.GetTransform();
+ FillRectWithMask(aDT, aRect, aColor, aOptions, mask.GetSurface(),
+ &maskTransform);
+ return;
+ }
+
+ FillRectWithMask(aDT, aRect, aColor, aOptions);
+}
+
+void FillRectWithMask(DrawTarget* aDT, const Rect& aRect,
+ SourceSurface* aSurface, SamplingFilter aSamplingFilter,
+ const DrawOptions& aOptions, ExtendMode aExtendMode,
+ SourceSurface* aMaskSource, const Matrix* aMaskTransform,
+ const Matrix* aSurfaceTransform) {
+ if (aMaskSource && aMaskTransform) {
+ aDT->PushClipRect(aRect);
+ Matrix oldTransform = aDT->GetTransform();
+
+ Matrix inverseMask = *aMaskTransform;
+ inverseMask.Invert();
+
+ Matrix transform = oldTransform * inverseMask;
+ if (aSurfaceTransform) {
+ transform = (*aSurfaceTransform) * transform;
+ }
+
+ SurfacePattern source(aSurface, aExtendMode, transform, aSamplingFilter);
+
+ aDT->SetTransform(*aMaskTransform);
+ aDT->MaskSurface(source, aMaskSource, Point(0, 0), aOptions);
+
+ aDT->SetTransform(oldTransform);
+ aDT->PopClip();
+ return;
+ }
+
+ aDT->FillRect(
+ aRect,
+ SurfacePattern(aSurface, aExtendMode,
+ aSurfaceTransform ? (*aSurfaceTransform) : Matrix(),
+ aSamplingFilter),
+ aOptions);
+}
+
+void FillRectWithMask(DrawTarget* aDT, const gfx::Point& aDeviceOffset,
+ const Rect& aRect, SourceSurface* aSurface,
+ SamplingFilter aSamplingFilter,
+ const DrawOptions& aOptions, Layer* aMaskLayer) {
+ AutoMoz2DMaskData mask;
+ if (GetMaskData(aMaskLayer, aDeviceOffset, &mask)) {
+ const Matrix& maskTransform = mask.GetTransform();
+ FillRectWithMask(aDT, aRect, aSurface, aSamplingFilter, aOptions,
+ ExtendMode::CLAMP, mask.GetSurface(), &maskTransform);
+ return;
+ }
+
+ FillRectWithMask(aDT, aRect, aSurface, aSamplingFilter, aOptions,
+ ExtendMode::CLAMP);
+}
+
+void FillPathWithMask(DrawTarget* aDT, const Path* aPath, const Rect& aClipRect,
+ const DeviceColor& aColor, const DrawOptions& aOptions,
+ SourceSurface* aMaskSource,
+ const Matrix* aMaskTransform) {
+ if (aMaskSource && aMaskTransform) {
+ aDT->PushClipRect(aClipRect);
+ Matrix oldTransform = aDT->GetTransform();
+
+ aDT->SetTransform(*aMaskTransform);
+ aDT->MaskSurface(ColorPattern(aColor), aMaskSource, Point(), aOptions);
+ aDT->SetTransform(oldTransform);
+ aDT->PopClip();
+ return;
+ }
+
+ aDT->Fill(aPath, ColorPattern(aColor), aOptions);
+}
+
+void FillPathWithMask(DrawTarget* aDT, const Path* aPath, const Rect& aClipRect,
+ SourceSurface* aSurface, SamplingFilter aSamplingFilter,
+ const DrawOptions& aOptions, ExtendMode aExtendMode,
+ SourceSurface* aMaskSource, const Matrix* aMaskTransform,
+ const Matrix* aSurfaceTransform) {
+ if (aMaskSource && aMaskTransform) {
+ aDT->PushClipRect(aClipRect);
+ Matrix oldTransform = aDT->GetTransform();
+
+ Matrix inverseMask = *aMaskTransform;
+ inverseMask.Invert();
+
+ Matrix transform = oldTransform * inverseMask;
+ if (aSurfaceTransform) {
+ transform = (*aSurfaceTransform) * transform;
+ }
+
+ SurfacePattern source(aSurface, aExtendMode, transform, aSamplingFilter);
+
+ aDT->SetTransform(*aMaskTransform);
+ aDT->MaskSurface(source, aMaskSource, Point(0, 0), aOptions);
+ aDT->SetTransform(oldTransform);
+ aDT->PopClip();
+ return;
+ }
+
+ aDT->Fill(aPath,
+ SurfacePattern(aSurface, aExtendMode,
+ aSurfaceTransform ? (*aSurfaceTransform) : Matrix(),
+ aSamplingFilter),
+ aOptions);
+}
+
+BasicImplData* ToData(Layer* aLayer) {
+ return static_cast<BasicImplData*>(aLayer->ImplData());
+}
+
+gfx::CompositionOp GetEffectiveOperator(Layer* aLayer) {
+ CompositionOp op = aLayer->GetEffectiveMixBlendMode();
+
+ if (op != CompositionOp::OP_OVER) {
+ return op;
+ }
+
+ return ToData(aLayer)->GetOperator();
+}
+
+} // namespace layers
+} // namespace mozilla
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 21:52:54 +0000