116 lines
3.0 KiB
Plaintext
116 lines
3.0 KiB
Plaintext
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/*
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* Copyright 2019 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tools/sk_app/MetalWindowContext.h"
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#include "tools/sk_app/ios/WindowContextFactory_ios.h"
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#import <Metal/Metal.h>
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#import <UIKit/UIKit.h>
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using sk_app::DisplayParams;
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using sk_app::window_context_factory::IOSWindowInfo;
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using sk_app::MetalWindowContext;
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@interface MetalView : MainView
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@end
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@implementation MetalView
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+ (Class) layerClass {
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return [CAMetalLayer class];
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}
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@end
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namespace {
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class MetalWindowContext_ios : public MetalWindowContext {
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public:
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MetalWindowContext_ios(const IOSWindowInfo&, const DisplayParams&);
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~MetalWindowContext_ios() override;
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bool onInitializeContext() override;
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void onDestroyContext() override;
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void resize(int w, int h) override;
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private:
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sk_app::Window_ios* fWindow;
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UIViewController* fViewController;
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MetalView* fMetalView;
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typedef MetalWindowContext INHERITED;
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};
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MetalWindowContext_ios::MetalWindowContext_ios(const IOSWindowInfo& info,
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const DisplayParams& params)
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: INHERITED(params)
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, fWindow(info.fWindow)
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, fViewController(info.fViewController) {
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// any config code here (particularly for msaa)?
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this->initializeContext();
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}
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MetalWindowContext_ios::~MetalWindowContext_ios() {
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this->destroyContext();
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[fMetalView removeFromSuperview];
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[fMetalView release];
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}
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bool MetalWindowContext_ios::onInitializeContext() {
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SkASSERT(nil != fWindow);
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SkASSERT(nil != fViewController);
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CGRect frameRect = [fViewController.view frame];
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fMetalView = [[[MetalView alloc] initWithFrame:frameRect] initWithWindow:fWindow];
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[fViewController.view addSubview:fMetalView];
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fMetalLayer = (CAMetalLayer*)fMetalView.layer;
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fMetalLayer.device = fDevice;
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fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
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fMetalLayer.drawableSize = frameRect.size;
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fMetalLayer.frame = frameRect;
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// TODO: need solution for iOS
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// BOOL useVsync = fDisplayParams.fDisableVsync ? NO : YES;
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// fMetalLayer.displaySyncEnabled = useVsync;
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fMetalLayer.contentsGravity = kCAGravityTopLeft;
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fWidth = frameRect.size.width;
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fHeight = frameRect.size.height;
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return true;
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}
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void MetalWindowContext_ios::onDestroyContext() {}
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void MetalWindowContext_ios::resize(int w, int h) {
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// TODO: handle rotation
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fMetalLayer.drawableSize = fMetalView.frame.size;
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fMetalLayer.frame = fMetalView.frame;
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fWidth = w;
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fHeight = h;
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}
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} // anonymous namespace
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namespace sk_app {
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namespace window_context_factory {
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std::unique_ptr<WindowContext> MakeMetalForIOS(const IOSWindowInfo& info,
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const DisplayParams& params) {
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std::unique_ptr<WindowContext> ctx(new MetalWindowContext_ios(info, params));
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if (!ctx->isValid()) {
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return nullptr;
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}
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return ctx;
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}
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} // namespace window_context_factory
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} // namespace sk_app
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