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// Copyright 2016 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_DRM_GPU_GBM_SURFACELESS_H_
#define UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACELESS_H_
#include <memory>
#include <vector>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "ui/gfx/gpu_fence_handle.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gl_display.h"
#include "ui/gl/gl_surface_overlay.h"
#include "ui/gl/presenter.h"
#include "ui/gl/scoped_binders.h"
#include "ui/ozone/platform/drm/gpu/drm_overlay_plane.h"
namespace gfx {
class GpuFence;
} // namespace gfx
namespace ui {
class DrmWindowProxy;
class GbmSurfaceFactory;
// A GLSurface for GBM Ozone platform that uses surfaceless drawing. Drawing and
// displaying happens directly through NativePixmap buffers. CC would call into
// SurfaceFactoryOzone to allocate the buffers and then call
// ScheduleOverlayPlane(..) to schedule the buffer for presentation.
class GbmSurfaceless : public gl::Presenter {
public:
GbmSurfaceless(GbmSurfaceFactory* surface_factory,
gl::GLDisplayEGL* display,
std::unique_ptr<DrmWindowProxy> window,
gfx::AcceleratedWidget widget);
GbmSurfaceless(const GbmSurfaceless&) = delete;
GbmSurfaceless& operator=(const GbmSurfaceless&) = delete;
void QueueOverlayPlane(DrmOverlayPlane plane);
// gl::Presenter:
bool ScheduleOverlayPlane(
gl::OverlayImage image,
std::unique_ptr<gfx::GpuFence> gpu_fence,
const gfx::OverlayPlaneData& overlay_plane_data) override;
bool Resize(const gfx::Size& size,
float scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha) override;
bool SupportsPlaneGpuFences() const override;
void SetRelyOnImplicitSync() override;
void SetNotifyNonSimpleOverlayFailure() override;
void Present(SwapCompletionCallback completion_callback,
PresentationCallback presentation_callback,
gfx::FrameData data) override;
protected:
~GbmSurfaceless() override;
gfx::AcceleratedWidget widget() { return widget_; }
GbmSurfaceFactory* surface_factory() { return surface_factory_; }
private:
struct PendingFrame {
PendingFrame();
~PendingFrame();
bool ScheduleOverlayPlanes(gfx::AcceleratedWidget widget);
bool ready = false;
gfx::SwapResult swap_result = gfx::SwapResult::SWAP_FAILED;
std::vector<gl::GLSurfaceOverlay> overlays;
SwapCompletionCallback completion_callback;
PresentationCallback presentation_callback;
};
void SubmitFrame();
EGLSyncKHR InsertFence();
void FenceRetired(PendingFrame* frame);
void OnSubmission(bool should_handle_non_simple_overlay_failure,
gfx::SwapResult result,
gfx::GpuFenceHandle release_fence);
void OnPresentation(const gfx::PresentationFeedback& feedback);
EGLDisplay GetEGLDisplay();
const raw_ptr<GbmSurfaceFactory> surface_factory_;
const std::unique_ptr<DrmWindowProxy> window_;
std::vector<DrmOverlayPlane> planes_;
// The native surface. Deleting this is allowed to free the EGLNativeWindow.
const gfx::AcceleratedWidget widget_;
std::vector<std::unique_ptr<PendingFrame>> unsubmitted_frames_;
std::unique_ptr<PendingFrame> submitted_frame_;
std::unique_ptr<gfx::GpuFence> submitted_frame_gpu_fence_;
bool last_swap_buffers_result_ = true;
bool supports_plane_gpu_fences_ = false;
bool use_egl_fence_sync_ = true;
// Determines submission of non-simple overlays (see gfx::OverlayType) should
// be handled with gfx::SwapResult::SWAP_NON_SIMPLE_OVERLAYS_FAILED.
bool notify_non_simple_overlay_failure_ = false;
// Conservatively assume we begin on a device that requires
// explicit synchronization.
bool is_on_external_drm_device_ = true;
const raw_ptr<gl::GLDisplayEGL> display_;
base::WeakPtrFactory<GbmSurfaceless> weak_factory_{this};
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACELESS_H_
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