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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_OZONE_PLATFORM_WAYLAND_GPU_GBM_PIXMAP_WAYLAND_H_
#define UI_OZONE_PLATFORM_WAYLAND_GPU_GBM_PIXMAP_WAYLAND_H_
#include <memory>
#include <optional>
#include <vector>
#include "base/files/scoped_file.h"
#include "base/memory/raw_ptr.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/linux/gbm_buffer.h"
#include "ui/gfx/native_pixmap.h"
#include "ui/gfx/native_pixmap_handle.h"
#include "ui/gfx/native_widget_types.h"
namespace ui {
class WaylandBufferManagerGpu;
class GbmPixmapWayland : public gfx::NativePixmap {
public:
explicit GbmPixmapWayland(WaylandBufferManagerGpu* buffer_manager);
GbmPixmapWayland(const GbmPixmapWayland&) = delete;
GbmPixmapWayland& operator=(const GbmPixmapWayland&) = delete;
// Creates a buffer object and initializes the pixmap buffer.
// |visible_area_size| represents a 'visible size', i.e., a buffer
// of size |size| may actually contain visible data only in the
// subregion of size |visible_area_size|. If |visible_area_size| is
// not provided, |size| is used. If |widget| is provided, browser
// side wl_buffer is also created. Otherwise, this pixmap
// behaves as a staging pixmap and mustn't be scheduled as an overlay.
bool InitializeBuffer(
gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
std::optional<gfx::Size> visible_area_size = std::nullopt);
// Creates a buffer object from native pixmap handle and initializes the
// pixmap buffer. If |widget| is provided, browser side wl_buffer is also
// created. Otherwise, this pixmap behaves as a staging pixmap and mustn't be
// scheduled as an overlay.
bool InitializeBufferFromHandle(gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
gfx::NativePixmapHandle handle);
// gfx::NativePixmap overrides:
bool AreDmaBufFdsValid() const override;
int GetDmaBufFd(size_t plane) const override;
uint32_t GetDmaBufPitch(size_t plane) const override;
size_t GetDmaBufOffset(size_t plane) const override;
size_t GetDmaBufPlaneSize(size_t plane) const override;
size_t GetNumberOfPlanes() const override;
bool SupportsZeroCopyWebGPUImport() const override;
uint64_t GetBufferFormatModifier() const override;
gfx::BufferFormat GetBufferFormat() const override;
gfx::Size GetBufferSize() const override;
uint32_t GetUniqueId() const override;
bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
const gfx::OverlayPlaneData& overlay_plane_data,
std::vector<gfx::GpuFence> acquire_fences,
std::vector<gfx::GpuFence> release_fences) override;
gfx::NativePixmapHandle ExportHandle() const override;
private:
~GbmPixmapWayland() override;
// Asks Wayland to create a dmabuf based wl_buffer.
void CreateDmabufBasedWlBuffer();
// gbm_bo wrapper for struct gbm_bo.
std::unique_ptr<GbmBuffer> gbm_bo_;
// Represents a connection to Wayland.
const raw_ptr<WaylandBufferManagerGpu> buffer_manager_;
// Represents widget this pixmap backs.
gfx::AcceleratedWidget widget_ = gfx::kNullAcceleratedWidget;
// A unique ID to identify the buffer for this pixmap.
const uint32_t buffer_id_;
// Size of the visible area of the buffer.
gfx::Size visible_area_size_;
// Says a wl_buffer has been created and must removed.
bool created_wl_buffer_ = false;
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_WAYLAND_GPU_GBM_PIXMAP_WAYLAND_H_
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