Support swap damage rect using eglSwapBuffersWithDamageKHR

ui/ozone/platform/cast/gl_surface_cast.h

 // Copyright 2016 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 UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_
 #define UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_
 
 #include "base/macros.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/overlay_transform.h"
 #include "ui/gfx/swap_result.h"
 #include "ui/gl/gl_image.h"
 #include "ui/gl/gl_surface_egl.h"
 
 namespace ui {
 
 class SurfaceFactoryCast;
 
 class GLSurfaceCast : public gl::NativeViewGLSurfaceEGL {
  public:
   GLSurfaceCast(gfx::AcceleratedWidget widget, SurfaceFactoryCast* parent);
 
   // gl::GLSurface:
   gfx::SwapResult SwapBuffers() override;
+  gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;

[piman, 2016/09/07 17:19:41]

Did you mean to implement SwapBuffersWithDamage?

[halliwell, 2016/09/08 04:21:34]

Yes, forgot to update this.

   bool Resize(const gfx::Size& size,
               float scale_factor,
               bool has_alpha) override;
   bool ScheduleOverlayPlane(int z_order,
                             gfx::OverlayTransform transform,
                             gl::GLImage* image,
                             const gfx::Rect& bounds_rect,
                             const gfx::RectF& crop_rect) override;
   EGLConfig GetConfig() override;
 
  protected:
   ~GLSurfaceCast() override;
 
   gfx::AcceleratedWidget widget_;
   SurfaceFactoryCast* parent_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GLSurfaceCast);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_