iOS Chromoting Client

remoting/ios/ui/cursor_texture.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_IOS_UI_CURSOR_TEXTURE_H_
+#define REMOTING_IOS_UI_CURSOR_TEXTURE_H_
+
+#import <Foundation/Foundation.h>
+#import <GLKit/GLKit.h>
+
+#import "base/memory/scoped_ptr.h"
+
+#import "remoting/ios/utility.h"
+#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+#include "third_party/webrtc/modules/desktop_capture/mouse_cursor.h"
+
+@interface CursorTexture : NSObject {
+ @private
+  // GL name
+  GLuint _textureId;
+  webrtc::DesktopSize _textureSize;
+  BOOL _needInitialize;
+
+  // The current cursor
+  scoped_ptr<webrtc::MouseCursor> _cursor;
+
+  BOOL _needCursorRedraw;
+
+  // Rectangle of the most recent cursor drawn to a GL Texture.  On each
+  // successive frame when a new cursor is available this region is cleared on
+  // the GL Texture, so that the GL Texture is completely transparent again, and
+  // the cursor is then redrawn.
+  webrtc::DesktopRect _cursorDrawnToGL;
+}
+
+- (const webrtc::DesktopSize&)textureSize;
+
+- (void)setTextureSize:(const webrtc::DesktopSize&)size;
+
+- (const webrtc::MouseCursor&)cursor;
+
+- (void)setCursor:(webrtc::MouseCursor*)cursor;
+
+// bind this object to an effect's via the effects properties
+- (void)bindToEffect:(GLKEffectPropertyTexture*)effectProperty;
+
+// True if the cursor has changed in a way that requires it to be redrawn
+- (BOOL)needDrawAtPosition:(const webrtc::DesktopVector&)position;
+
+// needDrawAtPosition must be checked prior to calling drawWithMousePosition.
+// Draw mouse at the new position.
+- (void)drawWithMousePosition:(const webrtc::DesktopVector&)position;
+
+- (void)releaseTexture;
+
+@end
+
+#endif  // REMOTING_IOS_UI_CURSOR_TEXTURE_H_