1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ 6 #define CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ 7 8 #include <vector> 9 10 #include "cc/base/cc_export.h" 11 #include "ui/events/latency_info.h" 12 #include "ui/gfx/size_f.h" 13 #include "ui/gfx/vector2d_f.h" 14 15 namespace cc { 16 17 class CC_EXPORT CompositorFrameMetadata { 18 public: 19 CompositorFrameMetadata(); 20 ~CompositorFrameMetadata(); 21 22 // The device scale factor used to generate this compositor frame. 23 float device_scale_factor; 24 25 // Scroll offset and scale of the root layer. This can be used for tasks 26 // like positioning windowed plugins. 27 gfx::Vector2dF root_scroll_offset; 28 float page_scale_factor; 29 30 // These limits can be used together with the scroll/scale fields above to 31 // determine if scrolling/scaling in a particular direction is possible. 32 gfx::SizeF viewport_size; 33 gfx::SizeF root_layer_size; 34 float min_page_scale_factor; 35 float max_page_scale_factor; 36 37 // Used to position the Android location top bar and page content, whose 38 // precise position is computed by the renderer compositor. 39 gfx::Vector2dF location_bar_offset; 40 gfx::Vector2dF location_bar_content_translation; 41 float overdraw_bottom_height; 42 43 std::vector<ui::LatencyInfo> latency_info; 44 }; 45 46 } // namespace cc 47 48 #endif // CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ 49
