1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VIZ_SERVICE_DISPLAY_NULL_RENDERER_H_
#define COMPONENTS_VIZ_SERVICE_DISPLAY_NULL_RENDERER_H_
#include <memory>
#include "components/viz/service/display/direct_renderer.h"
namespace viz {
// Empty implementation of the DirectRenderer, used with OutputSurfaceUnified.
// Doesn't support Draw and will crash if Draw of SwapBuffers will be called.
class VIZ_SERVICE_EXPORT NullRenderer : public DirectRenderer {
public:
NullRenderer(const RendererSettings* settings,
const DebugRendererSettings* debug_settings,
OutputSurface* output_surface,
DisplayResourceProvider* resource_provider,
OverlayProcessorInterface* overlay_processor);
~NullRenderer() override;
protected:
void SetRenderPassBackingDrawnRect(
const AggregatedRenderPassId& render_pass_id,
const gfx::Rect& drawn_rect) override {}
gfx::Rect GetRenderPassBackingDrawnRect(
const AggregatedRenderPassId& render_pass_id) const override;
private:
void SwapBuffers(SwapFrameData swap_frame_data) override;
bool CanPartialSwap() override;
void UpdateRenderPassTextures(
const AggregatedRenderPassList& render_passes_in_draw_order,
const base::flat_map<AggregatedRenderPassId, RenderPassRequirements>&
render_passes_in_frame) override {}
void AllocateRenderPassResourceIfNeeded(
const AggregatedRenderPassId& render_pass_id,
const RenderPassRequirements& requirements) override {}
bool IsRenderPassResourceAllocated(
const AggregatedRenderPassId& render_pass_id) const override;
gfx::Size GetRenderPassBackingPixelSize(
const AggregatedRenderPassId& render_pass_id) override;
void SetScissorTestRect(const gfx::Rect& scissor_rect) override {}
void BeginDrawingRenderPass(const AggregatedRenderPass* render_pass,
bool needs_clear,
const gfx::Rect& render_pass_update_rect,
const gfx::Size& viewport_size) override {}
void DoDrawQuad(const DrawQuad* quad,
const gfx::QuadF* clip_region) override {}
void BeginDrawingFrame() override;
void FinishDrawingFrame() override {}
void EnsureScissorTestDisabled() override {}
void DidChangeVisibility() override {}
void CopyDrawnRenderPass(const copy_output::RenderPassGeometry& geometry,
std::unique_ptr<CopyOutputRequest> request) override;
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_DISPLAY_NULL_RENDERER_H_
|
