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
|
// Copyright 2017 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_COMMON_FRAME_SINKS_COPY_OUTPUT_UTIL_H_
#define COMPONENTS_VIZ_COMMON_FRAME_SINKS_COPY_OUTPUT_UTIL_H_
#include <string>
#include "components/viz/common/viz_common_export.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/vector2d.h"
namespace viz {
namespace copy_output {
// Returns the pixels in the scaled result coordinate space that are affected by
// the source |area| and scaling ratio. If application of the scaling ratio
// generates coordinates that are out-of-range or otherwise not "safely
// reasonable," an empty Rect is returned.
gfx::Rect VIZ_COMMON_EXPORT ComputeResultRect(const gfx::Rect& area,
const gfx::Vector2d& scale_from,
const gfx::Vector2d& scale_to);
// Geometry of the CopyOutputRequest mapped to the draw and window space of
// the relevant RenderPass.
struct VIZ_COMMON_EXPORT RenderPassGeometry {
// Bounds CopyOutputRequest result. RenderPass output_rect clamped to
// CopyOutputRequest area. Represented in post-scaled draw coordinate space.
gfx::Rect result_bounds;
// |result_bounds| clamped to the CopyOutputRequest selection. Represented in
// post-scaled draw coordinate space. It is the region that is actually
// returned.
gfx::Rect result_selection;
// |result_bounds| represented in pre-scaled window coordinate space.
gfx::Rect sampling_bounds;
// If request is not scaled, the origin of |result_selection| in window
// coordinate space. Otherwise undefined.
gfx::Vector2d readback_offset;
RenderPassGeometry();
~RenderPassGeometry();
std::string ToString() const;
};
} // namespace copy_output
} // namespace viz
#endif // COMPONENTS_VIZ_COMMON_FRAME_SINKS_COPY_OUTPUT_UTIL_H_
|
