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