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   // Apply transform |delta| to |in| and return the resulting transform,
  24   // or OVERLAY_TRANSFORM_INVALID.
  25   static gfx::OverlayTransform ModifyTransform(gfx::OverlayTransform in,
  26                                                gfx::OverlayTransform delta);
  27   static gfx::Rect GetOverlayRect(const gfx::Transform& quad_transform,
  28                                   const gfx::Rect& rect);
  29
  30   OverlayCandidate();
  31   ~OverlayCandidate();
  32
  33   // Transformation to apply to layer during composition.
  34   gfx::OverlayTransform transform;
  35   // Format of the buffer to composite.
  36   ResourceFormat format;
  37   // Rect on the display to position the overlay to.
  38   gfx::Rect display_rect;
  39   // Crop within the buffer to be placed inside |display_rect|.
  40   gfx::RectF uv_rect;
  41   // Texture resource to present in an overlay.
  42   unsigned resource_id;
  43   // Stacking order of the overlay plane relative to the main surface,
  44   // which is 0. Signed to allow for "underlays".
  45   int plane_z_order;
  46
  47   // To be modified by the implementer if this candidate can go into
  48   // an overlay.
  49   bool overlay_handled;
  50 };
  51
  52 typedef std::vector<OverlayCandidate> OverlayCandidateList;
  53
  54 }  // namespace cc
  55
  56 #endif  // CC_OUTPUT_OVERLAY_CANDIDATE_H_