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 "cc/base/cc_export.h" 9 #include "ui/base/latency_info.h" 10 #include "ui/gfx/size_f.h" 11 #include "ui/gfx/vector2d_f.h" 12 13 namespace cc { 14 15 class CC_EXPORT CompositorFrameMetadata { 16 public: 17 CompositorFrameMetadata(); 18 ~CompositorFrameMetadata(); 19 20 // The device scale factor used to generate this compositor frame. 21 float device_scale_factor; 22 23 // Scroll offset and scale of the root layer. This can be used for tasks 24 // like positioning windowed plugins. 25 gfx::Vector2dF root_scroll_offset; 26 float page_scale_factor; 27 28 // These limits can be used together with the scroll/scale fields above to 29 // determine if scrolling/scaling in a particular direction is possible. 30 gfx::SizeF viewport_size; 31 gfx::SizeF root_layer_size; 32 float min_page_scale_factor; 33 float max_page_scale_factor; 34 35 // Used to position the Android location top bar and page content, whose 36 // precise position is computed by the renderer compositor. 37 gfx::Vector2dF location_bar_offset; 38 gfx::Vector2dF location_bar_content_translation; 39 float overdraw_bottom_height; 40 41 ui::LatencyInfo latency_info; 42 }; 43 44 } // namespace cc 45 46 #endif // CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ 47
