4af0878e57
Changes in this CL:
- CaptureCursor() scans the cursor to verify that it has alpha channel.
- The AND mask of the cursor is used to reconstruct transparency if the cursor does not have alpha channel.
- CaptureCursor() always outlines the cursor when a "screen reverse" pixel detected. Previously it was only done for black and while cursors.
Added desktop_capture_unittest.MouseCursorShapeTest to test the cursor conversion code.
BUG=chromium:223147
R=sergeyu@chromium.org
Review URL: https://webrtc-codereview.appspot.com/1627004
git-svn-id: http://webrtc.googlecode.com/svn/trunk@4210 4adac7df-926f-26a2-2b94-8c16560cd09d
96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
/*
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* Copyright (c) 2013 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_WIN_SCOPED_GDI_HANDLE_H_
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#define WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_SCOPED_GDI_HANDLE_H_
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#include <windows.h>
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#include "webrtc/system_wrappers/interface/constructor_magic.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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namespace win {
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// Scoper for GDI objects.
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template<class T, class Traits>
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class ScopedGDIObject {
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public:
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ScopedGDIObject() : handle_(NULL) {}
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explicit ScopedGDIObject(T object) : handle_(object) {}
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~ScopedGDIObject() {
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Traits::Close(handle_);
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}
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T Get() {
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return handle_;
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}
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void Set(T object) {
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if (handle_ && object != handle_)
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Traits::Close(handle_);
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handle_ = object;
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}
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ScopedGDIObject& operator=(T object) {
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Set(object);
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return *this;
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}
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T release() {
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T object = handle_;
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handle_ = NULL;
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return object;
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}
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operator T() { return handle_; }
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private:
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T handle_;
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DISALLOW_COPY_AND_ASSIGN(ScopedGDIObject);
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};
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// The traits class that uses DeleteObject() to close a handle.
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template <typename T>
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class DeleteObjectTraits {
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public:
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// Closes the handle.
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static void Close(T handle) {
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if (handle)
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DeleteObject(handle);
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}
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(DeleteObjectTraits);
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};
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// The traits class that uses DestroyCursor() to close a handle.
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class DestroyCursorTraits {
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public:
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// Closes the handle.
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static void Close(HCURSOR handle) {
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if (handle)
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DestroyCursor(handle);
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}
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(DestroyCursorTraits);
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};
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typedef ScopedGDIObject<HBITMAP, DeleteObjectTraits<HBITMAP> > ScopedBitmap;
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typedef ScopedGDIObject<HCURSOR, DestroyCursorTraits> ScopedCursor;
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} // namespace win
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} // namespace webrtc
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#endif // WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_SCOPED_GDI_HANDLE_H_
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