fa8b5e4502
The macOS view system is in "big pixel" units, so translate these into "physical pixel" units. To compensate, add sk_app::Window::scaleFactor() which returns the scale factor. The viewer app is modified to apply the inverse of this scale factor to the current zoom level. Change-Id: I4fac066a230c87793fc5a0e5a582d60d25e46e7b Reviewed-on: https://skia-review.googlesource.com/c/skia/+/361558 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
110 lines
3.1 KiB
Plaintext
110 lines
3.1 KiB
Plaintext
/*
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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/mac/WindowContextFactory_mac.h"
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#import <Cocoa/Cocoa.h>
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#import <QuartzCore/CAConstraintLayoutManager.h>
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using sk_app::DisplayParams;
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using sk_app::window_context_factory::MacWindowInfo;
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using sk_app::MetalWindowContext;
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namespace {
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class MetalWindowContext_mac : public MetalWindowContext {
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public:
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MetalWindowContext_mac(const MacWindowInfo&, const DisplayParams&);
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~MetalWindowContext_mac() 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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NSView* fMainView;
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using INHERITED = MetalWindowContext;
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};
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MetalWindowContext_mac::MetalWindowContext_mac(const MacWindowInfo& info,
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const DisplayParams& params)
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: INHERITED(params)
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, fMainView(info.fMainView) {
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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_mac::~MetalWindowContext_mac() {
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this->destroyContext();
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}
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bool MetalWindowContext_mac::onInitializeContext() {
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SkASSERT(nil != fMainView);
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fMetalLayer = [CAMetalLayer layer];
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fMetalLayer.device = fDevice;
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fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
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// resize ignores the passed values and uses the fMainView directly.
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this->resize(0, 0);
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BOOL useVsync = fDisplayParams.fDisableVsync ? NO : YES;
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fMetalLayer.displaySyncEnabled = useVsync; // TODO: need solution for 10.12 or lower
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fMetalLayer.layoutManager = [CAConstraintLayoutManager layoutManager];
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fMetalLayer.autoresizingMask = kCALayerHeightSizable | kCALayerWidthSizable;
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fMetalLayer.contentsGravity = kCAGravityTopLeft;
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fMetalLayer.magnificationFilter = kCAFilterNearest;
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NSColorSpace* cs = fMainView.window.colorSpace;
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fMetalLayer.colorspace = cs.CGColorSpace;
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fMainView.layer = fMetalLayer;
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fMainView.wantsLayer = YES;
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return true;
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}
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void MetalWindowContext_mac::onDestroyContext() {
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fMainView.layer = nil;
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fMainView.wantsLayer = NO;
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}
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void MetalWindowContext_mac::resize(int w, int h) {
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CGFloat backingScaleFactor = sk_app::GetBackingScaleFactor(fMainView);
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CGSize backingSize = fMainView.bounds.size;
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backingSize.width *= backingScaleFactor;
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backingSize.height *= backingScaleFactor;
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fMetalLayer.drawableSize = backingSize;
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fMetalLayer.contentsScale = backingScaleFactor;
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fWidth = backingSize.width;
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fHeight = backingSize.height;
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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> MakeMetalForMac(const MacWindowInfo& info,
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const DisplayParams& params) {
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std::unique_ptr<WindowContext> ctx(new MetalWindowContext_mac(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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