blob: 814e67e6f39331831486a94f652c97d4719cdfe9 [file] [log] [blame]
// 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.
#include "flutter/shell/common/shell_test_platform_view_metal.h"
#import <Metal/Metal.h>
#include <utility>
#include "flutter/fml/platform/darwin/scoped_nsobject.h"
#include "flutter/shell/gpu/gpu_surface_metal_skia.h"
#include "flutter/shell/platform/darwin/graphics/FlutterDarwinContextMetalSkia.h"
namespace flutter {
namespace testing {
static fml::scoped_nsprotocol<id<MTLTexture>> CreateOffscreenTexture(id<MTLDevice> device) {
auto descriptor =
[MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm
width:800
height:600
mipmapped:NO];
descriptor.usage = MTLTextureUsageRenderTarget | MTLTextureUsageShaderRead;
return fml::scoped_nsprotocol<id<MTLTexture>>{[device newTextureWithDescriptor:descriptor]};
}
// This is out of the header so that shell_test_platform_view_metal.h can be included in
// non-Objective-C TUs.
class DarwinContextMetal {
public:
DarwinContextMetal()
: context_([[FlutterDarwinContextMetalSkia alloc] initWithDefaultMTLDevice]),
offscreen_texture_(CreateOffscreenTexture([context_.get() device])) {}
~DarwinContextMetal() = default;
fml::scoped_nsobject<FlutterDarwinContextMetalSkia> context() const { return context_; }
fml::scoped_nsprotocol<id<MTLTexture>> offscreen_texture() const { return offscreen_texture_; }
GPUMTLTextureInfo offscreen_texture_info() const {
GPUMTLTextureInfo info = {};
info.texture_id = 0;
info.texture = reinterpret_cast<GPUMTLTextureHandle>(offscreen_texture_.get());
return info;
}
private:
const fml::scoped_nsobject<FlutterDarwinContextMetalSkia> context_;
const fml::scoped_nsprotocol<id<MTLTexture>> offscreen_texture_;
FML_DISALLOW_COPY_AND_ASSIGN(DarwinContextMetal);
};
ShellTestPlatformViewMetal::ShellTestPlatformViewMetal(
PlatformView::Delegate& delegate,
const TaskRunners& task_runners,
std::shared_ptr<ShellTestVsyncClock> vsync_clock,
CreateVsyncWaiter create_vsync_waiter,
std::shared_ptr<ShellTestExternalViewEmbedder> shell_test_external_view_embedder)
: ShellTestPlatformView(delegate, task_runners),
GPUSurfaceMetalDelegate(MTLRenderTargetType::kMTLTexture),
metal_context_(std::make_unique<DarwinContextMetal>()),
create_vsync_waiter_(std::move(create_vsync_waiter)),
vsync_clock_(std::move(vsync_clock)),
shell_test_external_view_embedder_(std::move(shell_test_external_view_embedder)) {
FML_CHECK([metal_context_->context() mainContext] != nil);
}
ShellTestPlatformViewMetal::~ShellTestPlatformViewMetal() = default;
std::unique_ptr<VsyncWaiter> ShellTestPlatformViewMetal::CreateVSyncWaiter() {
return create_vsync_waiter_();
}
// |ShellTestPlatformView|
void ShellTestPlatformViewMetal::SimulateVSync() {
vsync_clock_->SimulateVSync();
}
// |PlatformView|
std::shared_ptr<ExternalViewEmbedder> ShellTestPlatformViewMetal::CreateExternalViewEmbedder() {
return shell_test_external_view_embedder_;
}
// |PlatformView|
PointerDataDispatcherMaker ShellTestPlatformViewMetal::GetDispatcherMaker() {
return [](DefaultPointerDataDispatcher::Delegate& delegate) {
return std::make_unique<SmoothPointerDataDispatcher>(delegate);
};
}
// |PlatformView|
std::unique_ptr<Surface> ShellTestPlatformViewMetal::CreateRenderingSurface() {
return std::make_unique<GPUSurfaceMetalSkia>(this, [metal_context_->context() mainContext],
MsaaSampleCount::kNone);
}
// |GPUSurfaceMetalDelegate|
GPUCAMetalLayerHandle ShellTestPlatformViewMetal::GetCAMetalLayer(const SkISize& frame_info) const {
FML_CHECK(false) << "A Metal Delegate configured with MTLRenderTargetType::kMTLTexture was asked "
"to acquire a layer.";
return nullptr;
}
// |GPUSurfaceMetalDelegate|
bool ShellTestPlatformViewMetal::PresentDrawable(GrMTLHandle drawable) const {
FML_CHECK(false) << "A Metal Delegate configured with MTLRenderTargetType::kMTLTexture was asked "
"to present a layer drawable.";
return true;
}
// |GPUSurfaceMetalDelegate|
GPUMTLTextureInfo ShellTestPlatformViewMetal::GetMTLTexture(const SkISize& frame_info) const {
return metal_context_->offscreen_texture_info();
}
// |GPUSurfaceMetalDelegate|
bool ShellTestPlatformViewMetal::PresentTexture(GPUMTLTextureInfo texture) const {
// The texture resides offscreen. There is nothing to render to.
return true;
}
} // namespace testing
} // namespace flutter