skia2/tools/sk_app/mac/MetalWindowContext_mac.mm
Jim Van Verth 2db4ba1caf Reland "Remove ARC from tools lib."
This is a reland of 4c4c80fa12

Original change's description:
> Remove ARC from tools lib.
>
> Trying this in baby steps to manage leaks better.
>
> Change-Id: Id8597ba236c752bcbf1c7ec94f6c1021e636d547
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372556
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Adlai Holler <adlai@google.com>

Change-Id: Ib5c949ee9e8ac9f47de1991297aec718f3185424
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/373616
Reviewed-by: Adlai Holler <adlai@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2021-02-22 17:55:52 +00:00

110 lines
3.1 KiB
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/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "tools/sk_app/MetalWindowContext.h"
#include "tools/sk_app/mac/WindowContextFactory_mac.h"
#import <Cocoa/Cocoa.h>
#import <QuartzCore/CAConstraintLayoutManager.h>
using sk_app::DisplayParams;
using sk_app::window_context_factory::MacWindowInfo;
using sk_app::MetalWindowContext;
namespace {
class MetalWindowContext_mac : public MetalWindowContext {
public:
MetalWindowContext_mac(const MacWindowInfo&, const DisplayParams&);
~MetalWindowContext_mac() override;
bool onInitializeContext() override;
void onDestroyContext() override;
void resize(int w, int h) override;
private:
NSView* fMainView;
using INHERITED = MetalWindowContext;
};
MetalWindowContext_mac::MetalWindowContext_mac(const MacWindowInfo& info,
const DisplayParams& params)
: INHERITED(params)
, fMainView(info.fMainView) {
// any config code here (particularly for msaa)?
this->initializeContext();
}
MetalWindowContext_mac::~MetalWindowContext_mac() {
this->destroyContext();
}
bool MetalWindowContext_mac::onInitializeContext() {
SkASSERT(nil != fMainView);
fMetalLayer = [CAMetalLayer layer];
fMetalLayer.device = fDevice.get();
fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
// resize ignores the passed values and uses the fMainView directly.
this->resize(0, 0);
BOOL useVsync = fDisplayParams.fDisableVsync ? NO : YES;
fMetalLayer.displaySyncEnabled = useVsync; // TODO: need solution for 10.12 or lower
fMetalLayer.layoutManager = [CAConstraintLayoutManager layoutManager];
fMetalLayer.autoresizingMask = kCALayerHeightSizable | kCALayerWidthSizable;
fMetalLayer.contentsGravity = kCAGravityTopLeft;
fMetalLayer.magnificationFilter = kCAFilterNearest;
NSColorSpace* cs = fMainView.window.colorSpace;
fMetalLayer.colorspace = cs.CGColorSpace;
fMainView.layer = fMetalLayer;
fMainView.wantsLayer = YES;
return true;
}
void MetalWindowContext_mac::onDestroyContext() {
fMainView.layer = nil;
fMainView.wantsLayer = NO;
}
void MetalWindowContext_mac::resize(int w, int h) {
CGFloat backingScaleFactor = sk_app::GetBackingScaleFactor(fMainView);
CGSize backingSize = fMainView.bounds.size;
backingSize.width *= backingScaleFactor;
backingSize.height *= backingScaleFactor;
fMetalLayer.drawableSize = backingSize;
fMetalLayer.contentsScale = backingScaleFactor;
fWidth = backingSize.width;
fHeight = backingSize.height;
}
} // anonymous namespace
namespace sk_app {
namespace window_context_factory {
std::unique_ptr<WindowContext> MakeMetalForMac(const MacWindowInfo& info,
const DisplayParams& params) {
std::unique_ptr<WindowContext> ctx(new MetalWindowContext_mac(info, params));
if (!ctx->isValid()) {
return nullptr;
}
return ctx;
}
} // namespace window_context_factory
} // namespace sk_app