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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin
#import <QuartzCore/QuartzCore.h>
#include "coreanim.h"
void * MakeMetalLayer() {
return [[CAMetalLayer alloc] init];
}
uint16_t MetalLayer_PixelFormat(void * metalLayer) {
return ((CAMetalLayer *)metalLayer).pixelFormat;
}
void MetalLayer_SetDevice(void * metalLayer, void * device) {
((CAMetalLayer *)metalLayer).device = (id<MTLDevice>)device;
}
const char * MetalLayer_SetPixelFormat(void * metalLayer, uint16_t pixelFormat) {
@try {
((CAMetalLayer *)metalLayer).pixelFormat = (MTLPixelFormat)pixelFormat;
}
@catch (NSException * exception) {
return exception.reason.UTF8String;
}
return NULL;
}
const char * MetalLayer_SetMaximumDrawableCount(void * metalLayer, uint_t maximumDrawableCount) {
if (@available(macOS 10.13.2, *)) {
@try {
((CAMetalLayer *)metalLayer).maximumDrawableCount = (NSUInteger)maximumDrawableCount;
}
@catch (NSException * exception) {
return exception.reason.UTF8String;
}
}
return NULL;
}
void MetalLayer_SetDisplaySyncEnabled(void * metalLayer, bool displaySyncEnabled) {
((CAMetalLayer *)metalLayer).displaySyncEnabled = displaySyncEnabled;
}
void MetalLayer_SetDrawableSize(void * metalLayer, double width, double height) {
((CAMetalLayer *)metalLayer).drawableSize = (CGSize){width, height};
}
void * MetalLayer_NextDrawable(void * metalLayer) {
return [(CAMetalLayer *)metalLayer nextDrawable];
}
void * MetalDrawable_Texture(void * metalDrawable) {
return ((id<CAMetalDrawable>)metalDrawable).texture;
}
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