зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.9 KiB
C++
115 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_FILTERNODECAPTURE_H_
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#define MOZILLA_GFX_FILTERNODECAPTURE_H_
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#include "2D.h"
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#include "Filters.h"
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#include <unordered_map>
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#include <vector>
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#include "mozilla/Variant.h"
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namespace mozilla {
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namespace gfx {
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class FilterNodeCapture final : public FilterNode {
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(FilterNodeCapture, override)
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explicit FilterNodeCapture(FilterType aType)
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: mType{aType}, mInputsChanged{true} {}
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FilterBackend GetBackendType() override { return FILTER_BACKEND_CAPTURE; }
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RefPtr<FilterNode> Validate(DrawTarget* aDT);
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template <typename T, typename C>
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void Replace(uint32_t aIndex, const T& aValue, C& aContainer) {
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// This replace function avoids generating the hash twice.
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auto result = aContainer.insert({aIndex, typename C::mapped_type(aValue)});
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if (!result.second) {
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result.first->second = typename C::mapped_type(aValue);
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}
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}
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void SetInput(uint32_t aIndex, SourceSurface* aSurface) override {
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mInputsChanged = true;
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Replace(aIndex, RefPtr<SourceSurface>(aSurface), mInputs);
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}
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void SetInput(uint32_t aIndex, FilterNode* aFilter) override {
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mInputsChanged = true;
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Replace(aIndex, RefPtr<FilterNode>(aFilter), mInputs);
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}
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using AttributeValue = Variant<uint32_t, Float, Point, Matrix5x4, Point3D,
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Size, IntSize, DeviceColor, Rect, IntRect,
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bool, std::vector<Float>, IntPoint, Matrix>;
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void SetAttribute(uint32_t aIndex, uint32_t aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, Float aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Point& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Matrix5x4& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Point3D& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Size& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const IntSize& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const DeviceColor& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Rect& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const IntRect& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, bool aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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virtual void SetAttribute(uint32_t aIndex, const Float* aValues,
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uint32_t aSize) override;
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void SetAttribute(uint32_t aIndex, const IntPoint& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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void SetAttribute(uint32_t aIndex, const Matrix& aValue) override {
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Replace(aIndex, aValue, mAttributes);
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}
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private:
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FilterType mType;
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RefPtr<FilterNode> mFilterNodeInternal;
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// This only contains attributes that were set since the last validation.
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std::unordered_map<uint32_t, AttributeValue> mAttributes;
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// This always contains all inputs, so that Validate may be called on input
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// filter nodes.
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std::unordered_map<uint32_t,
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Variant<RefPtr<SourceSurface>, RefPtr<FilterNode>>>
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mInputs;
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// This is true if SetInput was called since the last validation.
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bool mInputsChanged;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif
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