| /* |
| * Copyright (C) 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "COMPtr.h" |
| #include "Color.h" |
| #include "PlatformContextDirect2D.h" |
| #include <d2d1.h> |
| #include <d2d1_1.h> |
| #include <d2d1effects.h> |
| #include <d2d1helper.h> |
| #include <windows.h> |
| #include <wtf/TinyLRUCache.h> |
| |
| namespace WebCore { |
| |
| class GraphicsContextPlatformPrivate { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| GraphicsContextPlatformPrivate(PlatformContextDirect2D&, GraphicsContext::BitmapRenderingContextType); |
| GraphicsContextPlatformPrivate(std::unique_ptr<PlatformContextDirect2D>&&, GraphicsContext::BitmapRenderingContextType); |
| ~GraphicsContextPlatformPrivate(); |
| |
| void syncContext(PlatformContextDirect2D&); |
| |
| void beginTransparencyLayer(float opacity); |
| void endTransparencyLayer(); |
| |
| void clip(const FloatRect&); |
| void clip(const Path&); |
| void clip(ID2D1Geometry*); |
| |
| void beginDraw(); |
| void endDraw(); |
| void flush(); |
| void save(); |
| void scale(const FloatSize&); |
| void restore(); |
| void rotate(float); |
| void translate(float, float); |
| void concatCTM(const AffineTransform&); |
| void setCTM(const AffineTransform&); |
| |
| void setLineCap(LineCap); |
| void setLineJoin(LineJoin); |
| void setStrokeStyle(StrokeStyle); |
| void setMiterLimit(float); |
| void setDashOffset(float); |
| void setPatternWidth(float); |
| void setPatternOffset(float); |
| void setStrokeThickness(float); |
| void setDashes(const DashArray&); |
| void setAlpha(float); |
| |
| PlatformContextDirect2D& platformContext() { return m_platformContext; } |
| ID2D1RenderTarget* renderTarget(); |
| |
| HDC m_hdc { nullptr }; |
| |
| float currentGlobalAlpha() const; |
| |
| D2D1_STROKE_STYLE_PROPERTIES strokeStyleProperties() const; |
| |
| private: |
| std::unique_ptr<PlatformContextDirect2D> m_ownedPlatformContext; |
| PlatformContextDirect2D& m_platformContext; |
| const GraphicsContext::BitmapRenderingContextType m_rendererType; |
| |
| unsigned beginDrawCount { 0 }; |
| |
| float m_alpha { 1.0 }; |
| |
| friend class D2DContextStateSaver; |
| }; |
| |
| class D2DContextStateSaver { |
| public: |
| D2DContextStateSaver(GraphicsContextPlatformPrivate& context, bool saveAndRestore = true) |
| : m_context(context) |
| , m_saveAndRestore(saveAndRestore) |
| { |
| if (m_saveAndRestore) |
| m_context.m_platformContext.save(); |
| } |
| |
| ~D2DContextStateSaver() |
| { |
| if (m_saveAndRestore) |
| m_context.m_platformContext.restore(); |
| } |
| |
| void save() |
| { |
| ASSERT(!m_saveAndRestore); |
| m_context.m_platformContext.save(); |
| m_saveAndRestore = true; |
| } |
| |
| void restore() |
| { |
| ASSERT(m_saveAndRestore); |
| m_context.m_platformContext.restore(); |
| m_saveAndRestore = false; |
| } |
| |
| bool didSave() const |
| { |
| return m_saveAndRestore; |
| } |
| |
| private: |
| std::unique_ptr<PlatformContextDirect2D> ownedPlatformContext; |
| GraphicsContextPlatformPrivate& m_context; |
| bool m_saveAndRestore { false }; |
| }; |
| |
| } |