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- // Copyright 2019 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef UI_BASE_X_X11_SOFTWARE_BITMAP_PRESENTER_H_
- #define UI_BASE_X_X11_SOFTWARE_BITMAP_PRESENTER_H_
- #include "base/component_export.h"
- #include "base/memory/raw_ptr.h"
- #include "base/memory/scoped_refptr.h"
- #include "base/sequence_checker.h"
- #include "base/task/sequenced_task_runner.h"
- #include "third_party/skia/include/core/SkRefCnt.h"
- #include "third_party/skia/include/core/SkSurface.h"
- #include "ui/gfx/geometry/rect.h"
- #include "ui/gfx/geometry/size.h"
- #include "ui/gfx/native_widget_types.h"
- #include "ui/gfx/x/xproto.h"
- class SkCanvas;
- namespace ui {
- class XShmImagePool;
- class COMPONENT_EXPORT(UI_BASE_X) X11SoftwareBitmapPresenter {
- public:
- // Corresponds to SwapBuffersCallback alias in SoftwareOutputDevice.
- using SwapBuffersCallback = base::OnceCallback<void(const gfx::Size&)>;
- X11SoftwareBitmapPresenter(x11::Connection* connection,
- gfx::AcceleratedWidget widget,
- bool enable_multibuffering);
- X11SoftwareBitmapPresenter(const X11SoftwareBitmapPresenter&) = delete;
- X11SoftwareBitmapPresenter& operator=(const X11SoftwareBitmapPresenter&) =
- delete;
- ~X11SoftwareBitmapPresenter();
- void Resize(const gfx::Size& pixel_size);
- SkCanvas* GetSkCanvas();
- void EndPaint(const gfx::Rect& damage_rect);
- void OnSwapBuffers(SwapBuffersCallback swap_ack_callback);
- int MaxFramesPending() const;
- private:
- // Draw |data| over |widget|'s parent-relative background, and write the
- // resulting image to |widget|. Returns true on success.
- static bool CompositeBitmap(x11::Connection* connection,
- x11::Drawable widget,
- int x,
- int y,
- int width,
- int height,
- int depth,
- x11::GraphicsContext gc,
- const void* data);
- bool ShmPoolReady() const;
- x11::Window widget_;
- raw_ptr<x11::Connection> connection_;
- x11::GraphicsContext gc_{};
- x11::VisualId visual_{};
- int depth_ = 0;
- const bool enable_multibuffering_;
- // If nonzero, indicates that the widget should be drawn over its
- // parent-relative background.
- uint8_t composite_ = 0;
- std::unique_ptr<ui::XShmImagePool> shm_pool_;
- bool needs_swap_ = false;
- sk_sp<SkSurface> surface_;
- gfx::Size viewport_pixel_size_;
- SEQUENCE_CHECKER(sequence_checker_);
- };
- } // namespace ui
- #endif // UI_BASE_X_X11_SOFTWARE_BITMAP_PRESENTER_H_
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