gecko-dev/gfx/layers/CopyableCanvasRenderer.h
Daniel Holbert 126bd9e1a4 Bug 1412427 part 8: (automated patch) Switch a bunch of C++ files in gfx to use our standard mode lines. r=jrmuizel
This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py

For every file that is modified in this patch, the changes are as follows:
 (1) The patch changes the file to use the exact C++ mode lines from the
     Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line

 (2) The patch deletes any blank lines between the mode line & the MPL
     boilerplate comment.

 (3) If the file previously had the mode lines and MPL boilerplate in a
     single contiguous C++ comment, then the patch splits them into
     separate C++ comments, to match the boilerplate in the coding style.

MozReview-Commit-ID: 77D61xpSmIl

--HG--
extra : rebase_source : c6162fa3cf539a07177a19838324bf368faa162b
2017-10-27 16:10:06 -07:00

79 lines
2.5 KiB
C++

/* -*- 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/. */
#ifndef GFX_COPYABLECANVASRENDERER_H
#define GFX_COPYABLECANVASRENDERER_H
#include <stdint.h> // for uint32_t
#include "CanvasRenderer.h"
#include "GLContextTypes.h" // for GLContext
#include "gfxContext.h" // for gfxContext, etc
#include "gfxTypes.h"
#include "gfxPlatform.h" // for gfxImageFormat
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/Preferences.h" // for Preferences
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/gfx/2D.h" // for DrawTarget
#include "mozilla/mozalloc.h" // for operator delete, etc
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
namespace mozilla {
namespace gl {
class SharedSurface;
} // namespace gl
namespace layers {
/**
* A shared CanvasRenderer implementation that supports copying
* its contents into a gfxASurface using RebackSurface.
*/
class CopyableCanvasRenderer : public CanvasRenderer
{
public:
CopyableCanvasRenderer();
virtual ~CopyableCanvasRenderer();
public:
void Initialize(const CanvasInitializeData& aData) override;
bool IsDataValid(const CanvasInitializeData& aData) override;
void ClearCachedResources() override;
void Destroy() override;
CopyableCanvasRenderer* AsCopyableCanvasRenderer() override { return this; }
bool NeedsYFlip() const { return mOriginPos == gl::OriginPos::BottomLeft; }
bool HasGLContext() const { return !!mGLContext; }
bool IsOpaque() const { return mOpaque; }
PersistentBufferProvider* GetBufferProvider() { return mBufferProvider; }
already_AddRefed<gfx::SourceSurface> ReadbackSurface();
protected:
RefPtr<gl::GLContext> mGLContext;
RefPtr<PersistentBufferProvider> mBufferProvider;
UniquePtr<gl::SharedSurface> mGLFrontbuffer;
RefPtr<AsyncCanvasRenderer> mAsyncRenderer;
bool mIsAlphaPremultiplied;
gl::OriginPos mOriginPos;
bool mOpaque;
RefPtr<gfx::DataSourceSurface> mCachedTempSurface;
gfx::DataSourceSurface* GetTempSurface(const gfx::IntSize& aSize,
const gfx::SurfaceFormat aFormat);
};
} // namespace layers
} // namespace mozilla
#endif