ebiten/internal/graphicsdriver/metal/ca/ca.m

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// Copyright 2018 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build darwin
#include "ca.h"
#import <QuartzCore/QuartzCore.h>
void *MakeMetalLayer() {
CAMetalLayer *layer = [[CAMetalLayer alloc] init];
// TODO: Expose a function to set color space.
CGColorSpaceRef colorspace =
CGColorSpaceCreateWithName(kCGColorSpaceDisplayP3);
layer.colorspace = colorspace;
CGColorSpaceRelease(colorspace);
return layer;
}
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) {
// @available syntax is not available for old Xcode (#781)
//
// If possible, we'd want to write the guard like:
//
// if (@available(macOS 10.13.2, *)) { ...
@try {
if ([(CAMetalLayer *)metalLayer
respondsToSelector:@selector(setMaximumDrawableCount:)]) {
[((CAMetalLayer *)metalLayer)
setMaximumDrawableCount:(NSUInteger)maximumDrawableCount];
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}
} @catch (NSException *exception) {
return exception.reason.UTF8String;
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}
return NULL;
}
void MetalLayer_SetDisplaySyncEnabled(void *metalLayer,
BOOL displaySyncEnabled) {
// @available syntax is not available for old Xcode (#781)
//
// If possible, we'd want to write the guard like:
//
// if (@available(macOS 10.13, *)) { ...
if ([(CAMetalLayer *)metalLayer
respondsToSelector:@selector(setDisplaySyncEnabled:)]) {
[((CAMetalLayer *)metalLayer) setDisplaySyncEnabled:displaySyncEnabled];
}
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}
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;
}