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265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
87 lines
3.2 KiB
C++
87 lines
3.2 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_EXTENDINPUTEFFECTD2D1_H_
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#define MOZILLA_GFX_EXTENDINPUTEFFECTD2D1_H_
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#include <d2d1_1.h>
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#include <d2d1effectauthor.h>
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#include <d2d1effecthelpers.h>
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#include "2D.h"
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#include "mozilla/Attributes.h"
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// {97143DC6-CBC4-4DD4-A8BA-13342B0BA46D}
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DEFINE_GUID(CLSID_ExtendInputEffect, 0x5fb55c7c, 0xd795, 0x4ba3, 0xa9, 0x5c,
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0x22, 0x82, 0x5d, 0x0c, 0x4d, 0xf7);
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namespace mozilla {
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namespace gfx {
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enum { EXTENDINPUT_PROP_OUTPUT_RECT = 0 };
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// An effect type that passes through its input unchanged but sets the effect's
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// output rect to a specified rect. Unlike the built-in Crop effect, the
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// ExtendInput effect can extend the input rect, and not just make it smaller.
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// The added margins are filled with transparent black.
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// Some effects have different output depending on their input effect's output
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// rect, for example the Border effect (which repeats the edges of its input
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// effect's output rect) or the component transfer and color matrix effects
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// (which can transform transparent pixels into non-transparent ones, but only
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// inside their input effect's output rect).
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class ExtendInputEffectD2D1 final : public ID2D1EffectImpl,
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public ID2D1DrawTransform {
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public:
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// ID2D1EffectImpl
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IFACEMETHODIMP Initialize(ID2D1EffectContext* pContextInternal,
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ID2D1TransformGraph* pTransformGraph);
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IFACEMETHODIMP PrepareForRender(D2D1_CHANGE_TYPE changeType);
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IFACEMETHODIMP SetGraph(ID2D1TransformGraph* pGraph);
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// IUnknown
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IFACEMETHODIMP_(ULONG) AddRef();
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IFACEMETHODIMP_(ULONG) Release();
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IFACEMETHODIMP QueryInterface(REFIID riid, void** ppOutput);
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// ID2D1Transform
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IFACEMETHODIMP MapInputRectsToOutputRect(
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const D2D1_RECT_L* pInputRects, const D2D1_RECT_L* pInputOpaqueSubRects,
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UINT32 inputRectCount, D2D1_RECT_L* pOutputRect,
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D2D1_RECT_L* pOutputOpaqueSubRect);
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IFACEMETHODIMP MapOutputRectToInputRects(const D2D1_RECT_L* pOutputRect,
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D2D1_RECT_L* pInputRects,
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UINT32 inputRectCount) const;
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IFACEMETHODIMP MapInvalidRect(UINT32 inputIndex, D2D1_RECT_L invalidInputRect,
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D2D1_RECT_L* pInvalidOutputRect) const;
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// ID2D1TransformNode
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IFACEMETHODIMP_(UINT32) GetInputCount() const { return 1; }
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// ID2D1DrawTransform
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IFACEMETHODIMP SetDrawInfo(ID2D1DrawInfo* pDrawInfo) { return S_OK; }
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static HRESULT Register(ID2D1Factory1* aFactory);
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static void Unregister(ID2D1Factory1* aFactory);
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static HRESULT __stdcall CreateEffect(IUnknown** aEffectImpl);
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HRESULT SetOutputRect(D2D1_VECTOR_4F aOutputRect) {
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mOutputRect = aOutputRect;
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return S_OK;
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}
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D2D1_VECTOR_4F GetOutputRect() const { return mOutputRect; }
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private:
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ExtendInputEffectD2D1();
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uint32_t mRefCount;
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D2D1_VECTOR_4F mOutputRect;
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};
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} // namespace gfx
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} // namespace mozilla
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#undef SIMPLE_PROP
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#endif
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