cc/quads/shared_quad_state.h

   1 // Copyright 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_QUADS_SHARED_QUAD_STATE_H_
   6 #define CC_QUADS_SHARED_QUAD_STATE_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "cc/base/cc_export.h"
  10 #include "third_party/skia/include/core/SkXfermode.h"
  11 #include "ui/gfx/rect.h"
  12 #include "ui/gfx/transform.h"
  13
  14 namespace base {
  15 class Value;
  16 }
  17
  18 namespace cc {
  19
  20 // SharedQuadState holds a set of properties that are common across multiple
  21 // DrawQuads. It's purely an optimization - the properties behave in exactly the
  22 // same way as if they were replicated on each DrawQuad. A given SharedQuadState
  23 // can only be shared by DrawQuads that are adjacent in their RenderPass'
  24 // QuadList.
  25 class CC_EXPORT SharedQuadState {
  26  public:
  27   SharedQuadState();
  28   ~SharedQuadState();
  29
  30   void CopyFrom(const SharedQuadState* other);
  31
  32   void SetAll(const gfx::Transform& content_to_target_transform,
  33               const gfx::Size& content_bounds,
  34               const gfx::Rect& visible_content_rect,
  35               const gfx::Rect& clip_rect,
  36               bool is_clipped,
  37               float opacity,
  38               SkXfermode::Mode blend_mode,
  39               int sorting_context_id);
  40   scoped_ptr<base::Value> AsValue() const;
  41
  42   // Transforms from quad's original content space to its target content space.
  43   gfx::Transform content_to_target_transform;
  44   // This size lives in the content space for the quad's originating layer.
  45   gfx::Size content_bounds;
  46   // This rect lives in the content space for the quad's originating layer.
  47   gfx::Rect visible_content_rect;
  48   // This rect lives in the target content space.
  49   gfx::Rect clip_rect;
  50   bool is_clipped;
  51   float opacity;
  52   SkXfermode::Mode blend_mode;
  53   int sorting_context_id;
  54 };
  55
  56 }  // namespace cc
  57
  58 #endif  // CC_QUADS_SHARED_QUAD_STATE_H_