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implementation can accurately capture updated regions. Especially in ScreenCapturerWinDirectx, which has a specific updated region spreading logic and cannot be tested through regular code path. So we need a controllable ScreenDrawer to draw some basic shapes on the screen. And a platform independent test case can use the ScreenDrawer to test a ScreenCapturer. So this change addes a ScreenDrawer virtual class, and its Windows implementation ScreenDrawerWin. A disabled gtest ScreenDrawerTest.DrawRectangles is also added to manually test whether ScreenDrawer can work on a certain platform. BUG=314516 TBR=kjellander@webrtc.org Review-Url: https://codereview.webrtc.org/2210443002 Cr-Commit-Position: refs/heads/master@{#13788}
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_DRAWER_H_
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#define WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_DRAWER_H_
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#include <stdint.h>
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#include <memory>
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#include "webrtc/modules/desktop_capture/desktop_geometry.h"
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namespace webrtc {
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// A set of platform independent functions to draw various of shapes on the
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// screen. This class is for testing ScreenCapturer* implementations only, and
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// should not be used in production logic.
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class ScreenDrawer {
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public:
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// Creates a ScreenDrawer for the current platform.
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static std::unique_ptr<ScreenDrawer> Create();
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ScreenDrawer() {}
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virtual ~ScreenDrawer() {}
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// Returns a rect, on which this instance can draw.
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virtual DesktopRect DrawableRegion() = 0;
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// Draws a rectangle to cover |rect| with color |rgba|. Note, rect.bottom()
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// and rect.right() two lines are not included.
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virtual void DrawRectangle(DesktopRect rect, uint32_t rgba) = 0;
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// Clears all content on the screen.
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virtual void Clear() = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_DRAWER_H_
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