cc/output/overlay_candidate.cc

   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 #include "cc/output/overlay_candidate.h"
   6
   7 #include "ui/gfx/rect_conversions.h"
   8
   9 namespace cc {
  10
  11 OverlayCandidate::OverlayCandidate()
  12     : transform(gfx::OVERLAY_TRANSFORM_NONE),
  13       format(RGBA_8888),
  14       uv_rect(0.f, 0.f, 1.f, 1.f),
  15       resource_id(0),
  16       plane_z_order(0),
  17       overlay_handled(false) {}
  18
  19 OverlayCandidate::~OverlayCandidate() {}
  20
  21 // static
  22 gfx::OverlayTransform OverlayCandidate::GetOverlayTransform(
  23     const gfx::Transform& quad_transform,
  24     bool flipped) {
  25   if (!quad_transform.IsIdentityOrTranslation())
  26     return gfx::OVERLAY_TRANSFORM_INVALID;
  27
  28   return flipped ? gfx::OVERLAY_TRANSFORM_FLIP_VERTICAL
  29                  : gfx::OVERLAY_TRANSFORM_NONE;
  30 }
  31
  32 // static
  33 gfx::Rect OverlayCandidate::GetOverlayRect(const gfx::Transform& quad_transform,
  34                                            const gfx::Rect& rect) {
  35   DCHECK(quad_transform.IsIdentityOrTranslation());
  36
  37   gfx::RectF float_rect(rect);
  38   quad_transform.TransformRect(&float_rect);
  39   return gfx::ToNearestRect(float_rect);
  40 }
  41
  42 }  // namespace cc