cc/output/overlay_candidate.h

   1 // Copyright 2014 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_OVERLAY_CANDIDATE_H_
   6 #define CC_OUTPUT_OVERLAY_CANDIDATE_H_
   7
   8 #include <vector>
   9
  10 #include "cc/base/cc_export.h"
  11 #include "cc/resources/resource_format.h"
  12 #include "ui/gfx/geometry/rect.h"
  13 #include "ui/gfx/overlay_transform.h"
  14 #include "ui/gfx/transform.h"
  15
  16 namespace cc {
  17
  18 class CC_EXPORT OverlayCandidate {
  19  public:
  20   static gfx::OverlayTransform GetOverlayTransform(
  21       const gfx::Transform& quad_transform,
  22       bool flipped);
  23   static gfx::Rect GetOverlayRect(const gfx::Transform& quad_transform,
  24                                   const gfx::Rect& rect);
  25
  26   OverlayCandidate();
  27   ~OverlayCandidate();
  28
  29   // Transformation to apply to layer during composition.
  30   gfx::OverlayTransform transform;
  31   // Format of the buffer to composite.
  32   ResourceFormat format;
  33   // Rect on the display to position the overlay to.
  34   gfx::Rect display_rect;
  35   // Crop within the buffer to be placed inside |display_rect|.
  36   gfx::RectF uv_rect;
  37   // Texture resource to present in an overlay.
  38   unsigned resource_id;
  39   // Stacking order of the overlay plane relative to the main surface,
  40   // which is 0. Signed to allow for "underlays".
  41   int plane_z_order;
  42
  43   // To be modified by the implementer if this candidate can go into
  44   // an overlay.
  45   bool overlay_handled;
  46 };
  47
  48 typedef std::vector<OverlayCandidate> OverlayCandidateList;
  49
  50 }  // namespace cc
  51
  52 #endif  // CC_OUTPUT_OVERLAY_CANDIDATE_H_