test_metal_surface.h

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// Copyright 2013 The Flutter 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 FLUTTER_TESTING_TEST_METAL_SURFACE_H_
#define FLUTTER_TESTING_TEST_METAL_SURFACE_H_
 
#include "flutter/display_list/geometry/dl_geometry_types.h"
#include "flutter/fml/macros.h"
#include "flutter/testing/test_metal_context.h"
#include "third_party/skia/include/core/SkSize.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/ganesh/GrDirectContext.h"
 
namespace flutter::testing {
 
//------------------------------------------------------------------------------
/// @brief      Creates a MTLTexture backed SkSurface and context that can be
///             used to render to in unit-tests.
///
class TestMetalSurface {
 public:
  static bool PlatformSupportsMetal();
 
  static std::unique_ptr<TestMetalSurface> Create(
      const TestMetalContext& test_metal_context,
      DlISize surface_size = DlISize());
 
  static std::unique_ptr<TestMetalSurface> Create(
      const TestMetalContext& test_metal_context,
      int64_t texture_id,
      DlISize surface_size = DlISize());
 
  virtual ~TestMetalSurface();
 
  virtual bool IsValid() const;
 
  virtual sk_sp<GrDirectContext> GetGrContext() const;
 
  virtual sk_sp<SkSurface> GetSurface() const;
 
  virtual sk_sp<SkImage> GetRasterSurfaceSnapshot();
 
  virtual TestMetalContext::TextureInfo GetTextureInfo();
 
 protected:
  TestMetalSurface();
 
 private:
  std::unique_ptr<TestMetalSurface> impl_;
 
  explicit TestMetalSurface(std::unique_ptr<TestMetalSurface> impl);
 
  FML_DISALLOW_COPY_AND_ASSIGN(TestMetalSurface);
};
 
}  // namespace flutter::testing
 
#endif  // FLUTTER_TESTING_TEST_METAL_SURFACE_H_