RetroArch/gfx/common/metal/RendererCommon.m
Stuart Carnie 411bcf8bdd feat(apple): Metal support for macOS
* includes rgui
* shader support

This is a work-in-progress and there are some bugs and visual artifacts
still to be fixed.
2018-06-20 21:33:45 -07:00

56 lines
1.2 KiB
Objective-C

//
// RendererCommon.m
// MetalRenderer
//
// Created by Stuart Carnie on 6/3/18.
// Copyright © 2018 Stuart Carnie. All rights reserved.
//
#import "RendererCommon.h"
#import <Metal/Metal.h>
NSUInteger RPixelFormatToBPP(RPixelFormat format)
{
switch (format)
{
case RPixelFormatBGRA8Unorm:
case RPixelFormatBGRX8Unorm:
return 4;
case RPixelFormatB5G6R5Unorm:
case RPixelFormatBGRA4Unorm:
return 2;
default:
NSLog(@"Unknown format %ld", format);
abort();
}
}
static NSString * RPixelStrings[RPixelFormatCount];
NSString *NSStringFromRPixelFormat(RPixelFormat format)
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
#define STRING(literal) RPixelStrings[literal] = @#literal
STRING(RPixelFormatInvalid);
STRING(RPixelFormatB5G6R5Unorm);
STRING(RPixelFormatBGRA4Unorm);
STRING(RPixelFormatBGRA8Unorm);
STRING(RPixelFormatBGRX8Unorm);
#undef STRING
});
if (format >= RPixelFormatCount)
{
format = 0;
}
return RPixelStrings[format];
}