| // Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMECAST_PUBLIC_OSD_SURFACE_H_ |
| #define CHROMECAST_PUBLIC_OSD_SURFACE_H_ |
| |
| namespace chromecast { |
| |
| struct Rect; |
| struct Size; |
| |
| // Provides simple API (copy bitmap, blit, composite and fill) for drawing |
| // OSD graphics on OsdPlane. Hardware-specific implementation should be |
| // instantiated by OsdPlane. |
| class OsdSurface { |
| public: |
| struct Point { |
| Point(int arg_x, int arg_y) : x(arg_x), y(arg_y) {} |
| |
| const int x; |
| const int y; |
| }; |
| |
| virtual ~OsdSurface() {} |
| |
| // Blits(fast copy) bitmap from a surface. Copies |src_rect| area of surface |
| // |dst_point| of this surface. |
| virtual void Blit(OsdSurface* src_surface, |
| const Rect& src_rect, |
| const Point& dst_point) = 0; |
| |
| // Composites ARGB values of |src_surface| on top of this surface. It is NOT |
| // copy. Used when displaying OSD images on same plane. |
| virtual void Composite(OsdSurface* src_surface, |
| const Rect& src_rect, |
| const Point& dst_point) = 0; |
| |
| // Copies |damage_rect| area of src bitmap into |dst_point| of this surface. |
| // It is similar to Blit() except that it accepts arbitrary bitmap pointer |
| // instead of surface. |
| virtual void CopyBitmap(char* src_bitmap, |
| const Rect& src_rect, |
| const Rect& damage_rect, |
| const Point& dst_point) = 0; |
| |
| // Fills |rect| area of surface with |argb| value. |
| virtual void Fill(const Rect& rect, int argb) = 0; |
| |
| // Returns the dimensions of the surface. |
| virtual const Size& size() const = 0; |
| }; |
| |
| } // namespace chromecast |
| |
| #endif // CHROMECAST_PUBLIC_OSD_SURFACE_H_ |