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127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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_WIDGET_GTK_WINDOW_SURFACE_WAYLAND_H
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#define _MOZILLA_WIDGET_GTK_WINDOW_SURFACE_WAYLAND_H
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#include <prthread.h>
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#include "mozilla/gfx/Types.h"
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#include "nsWaylandDisplay.h"
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#define BACK_BUFFER_NUM 2
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namespace mozilla {
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namespace widget {
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// Allocates and owns shared memory for Wayland drawing surface
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class WaylandShmPool {
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public:
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WaylandShmPool(nsWaylandDisplay* aDisplay, int aSize);
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~WaylandShmPool();
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bool Resize(int aSize);
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wl_shm_pool* GetShmPool() { return mShmPool; };
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void* GetImageData() { return mImageData; };
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void SetImageDataFromPool(class WaylandShmPool* aSourcePool,
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int aImageDataSize);
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private:
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int CreateTemporaryFile(int aSize);
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wl_shm_pool* mShmPool;
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int mShmPoolFd;
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int mAllocatedSize;
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void* mImageData;
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};
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// Holds actual graphics data for wl_surface
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class WindowBackBuffer {
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public:
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WindowBackBuffer(nsWaylandDisplay* aDisplay, int aWidth, int aHeight);
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~WindowBackBuffer();
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already_AddRefed<gfx::DrawTarget> Lock();
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void Attach(wl_surface* aSurface);
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void Detach();
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bool IsAttached() { return mAttached; }
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void Clear();
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bool Resize(int aWidth, int aHeight);
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bool SetImageDataFromBuffer(class WindowBackBuffer* aSourceBuffer);
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bool IsMatchingSize(int aWidth, int aHeight) {
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return aWidth == mWidth && aHeight == mHeight;
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}
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bool IsMatchingSize(class WindowBackBuffer* aBuffer) {
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return aBuffer->mWidth == mWidth && aBuffer->mHeight == mHeight;
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}
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static gfx::SurfaceFormat GetSurfaceFormat() { return mFormat; }
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private:
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void Create(int aWidth, int aHeight);
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void Release();
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// WaylandShmPool provides actual shared memory we draw into
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WaylandShmPool mShmPool;
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// wl_buffer is a wayland object that encapsulates the shared memory
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// and passes it to wayland compositor by wl_surface object.
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wl_buffer* mWaylandBuffer;
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int mWidth;
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int mHeight;
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bool mAttached;
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nsWaylandDisplay* mWaylandDisplay;
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static gfx::SurfaceFormat mFormat;
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};
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// WindowSurfaceWayland is an abstraction for wl_surface
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// and related management
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class WindowSurfaceWayland : public WindowSurface {
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public:
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explicit WindowSurfaceWayland(nsWindow* aWindow);
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~WindowSurfaceWayland();
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already_AddRefed<gfx::DrawTarget> Lock(
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const LayoutDeviceIntRegion& aRegion) override;
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void Commit(const LayoutDeviceIntRegion& aInvalidRegion) final;
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void FrameCallbackHandler();
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void DelayedCommitHandler();
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private:
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WindowBackBuffer* GetWaylandBufferToDraw(int aWidth, int aHeight);
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already_AddRefed<gfx::DrawTarget> LockWaylandBuffer(int aWidth, int aHeight,
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bool aClearBuffer);
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already_AddRefed<gfx::DrawTarget> LockImageSurface(
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const gfx::IntSize& aLockSize);
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bool CommitImageSurfaceToWaylandBuffer(const LayoutDeviceIntRegion& aRegion);
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void CommitWaylandBuffer();
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// TODO: Do we need to hold a reference to nsWindow object?
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nsWindow* mWindow;
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nsWaylandDisplay* mWaylandDisplay;
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WindowBackBuffer* mWaylandBuffer;
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LayoutDeviceIntRegion mWaylandBufferDamage;
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WindowBackBuffer* mBackupBuffer[BACK_BUFFER_NUM];
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RefPtr<gfxImageSurface> mImageSurface;
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wl_callback* mFrameCallback;
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wl_surface* mLastCommittedSurface;
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MessageLoop* mDisplayThreadMessageLoop;
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WindowSurfaceWayland** mDelayedCommitHandle;
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bool mDrawToWaylandBufferDirectly;
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bool mPendingCommit;
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bool mWaylandBufferFullScreenDamage;
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bool mIsMainThread;
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bool mNeedScaleFactorUpdate;
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};
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} // namespace widget
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} // namespace mozilla
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#endif // _MOZILLA_WIDGET_GTK_WINDOW_SURFACE_WAYLAND_H
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