mirror of
https://github.com/hajimehoshi/ebiten.git
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121 lines
3.8 KiB
Objective-C
121 lines
3.8 KiB
Objective-C
// Copyright 2018 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build darwin
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#include "ca.h"
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#import <QuartzCore/QuartzCore.h>
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void *MakeMetalLayer() {
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CAMetalLayer *layer = [[CAMetalLayer alloc] init];
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// TODO: Expose a function to set color space.
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// TODO: Enable colorspace on iOS: this will be available as of iOS 13.0.
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#if !TARGET_OS_IPHONE
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CGColorSpaceRef colorspace =
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CGColorSpaceCreateWithName(kCGColorSpaceDisplayP3);
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layer.colorspace = colorspace;
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CGColorSpaceRelease(colorspace);
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#endif
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return layer;
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}
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uint16_t MetalLayer_PixelFormat(void *metalLayer) {
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return ((CAMetalLayer *)metalLayer).pixelFormat;
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}
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void MetalLayer_SetDevice(void *metalLayer, void *device) {
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((CAMetalLayer *)metalLayer).device = (id<MTLDevice>)device;
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}
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void MetalLayer_SetOpaque(void *metalLayer, unsigned char opaque) {
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((CAMetalLayer *)metalLayer).opaque = (BOOL)opaque;
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}
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const char *MetalLayer_SetPixelFormat(void *metalLayer, uint16_t pixelFormat) {
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@try {
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((CAMetalLayer *)metalLayer).pixelFormat = (MTLPixelFormat)pixelFormat;
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} @catch (NSException *exception) {
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return exception.reason.UTF8String;
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}
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return NULL;
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}
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const char *MetalLayer_SetMaximumDrawableCount(void *metalLayer,
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uint_t maximumDrawableCount) {
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// @available syntax is not available for old Xcode (#781)
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//
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// If possible, we'd want to write the guard like:
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//
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// if (@available(macOS 10.13.2, *)) { ...
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@try {
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if ([(CAMetalLayer *)metalLayer
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respondsToSelector:@selector(setMaximumDrawableCount:)]) {
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[((CAMetalLayer *)metalLayer)
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setMaximumDrawableCount:(NSUInteger)maximumDrawableCount];
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}
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} @catch (NSException *exception) {
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return exception.reason.UTF8String;
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}
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return NULL;
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}
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void MetalLayer_SetDisplaySyncEnabled(void *metalLayer,
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uint8_t displaySyncEnabled) {
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// @available syntax is not available for old Xcode (#781)
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//
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// If possible, we'd want to write the guard like:
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//
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// if (@available(macOS 10.13, *)) { ...
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#if !TARGET_OS_IPHONE
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if ([(CAMetalLayer *)metalLayer
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respondsToSelector:@selector(setDisplaySyncEnabled:)]) {
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[((CAMetalLayer *)metalLayer) setDisplaySyncEnabled:displaySyncEnabled];
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}
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#endif
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// setting presentsWithTransaction YES makes the FPS stable (#1196). We're not
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// sure why...
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if (displaySyncEnabled) {
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[((CAMetalLayer *)metalLayer) setPresentsWithTransaction:YES];
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} else {
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[((CAMetalLayer *)metalLayer) setPresentsWithTransaction:NO];
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}
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}
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void MetalLayer_SetDrawableSize(void *metalLayer, double width, double height) {
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((CAMetalLayer *)metalLayer).drawableSize = (CGSize){width, height};
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}
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void *MetalLayer_NextDrawable(void *metalLayer) {
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return [(CAMetalLayer *)metalLayer nextDrawable];
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}
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void *MetalDrawable_Texture(void *metalDrawable) {
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return ((id<CAMetalDrawable>)metalDrawable).texture;
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}
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void MetalDrawable_Present(void *metalDrawable) {
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[((id<CAMetalDrawable>)metalDrawable) present];
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}
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void MetalLayer_SetFramebufferOnly(void *metalLayer, uint8_t framebufferOnly) {
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[((CAMetalLayer *)metalLayer) setFramebufferOnly:framebufferOnly];
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}
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uint8_t MetalLayer_PresentsWithTransaction(void *metalLayer) {
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return [((CAMetalLayer *)metalLayer) presentsWithTransaction];
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}
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