mirror of
https://github.com/libretro/RetroArch
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60 lines
1.3 KiB
Objective-C
60 lines
1.3 KiB
Objective-C
//
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// RendererCommon.h
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// MetalRenderer
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//
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// Created by Stuart Carnie on 6/3/18.
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// Copyright © 2018 Stuart Carnie. All rights reserved.
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//
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#ifndef RendererCommon_h
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#define RendererCommon_h
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#import <Foundation/Foundation.h>
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// TODO(sgc): implement triple buffering
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/*! @brief maximum inflight frames */
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#define MAX_INFLIGHT 1
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#define CHAIN_LENGTH 3
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/* macOS requires constants in a buffer to have a 256 byte alignment. */
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#ifdef TARGET_OS_MAC
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#define kMetalBufferAlignment 256
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#else
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#define kMetalBufferAlignment 4
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#endif
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#define MTL_ALIGN_BUFFER(size) ((size + kMetalBufferAlignment - 1) & (~(kMetalBufferAlignment - 1)))
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#pragma mark - Pixel Formats
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typedef NS_ENUM(NSUInteger, RPixelFormat)
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{
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RPixelFormatInvalid,
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/* 16-bit formats */
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RPixelFormatBGRA4Unorm,
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RPixelFormatB5G6R5Unorm,
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RPixelFormatBGRA8Unorm,
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RPixelFormatBGRX8Unorm, // RetroArch XRGB
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RPixelFormatCount,
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};
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extern NSUInteger RPixelFormatToBPP(RPixelFormat format);
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extern NSString *NSStringFromRPixelFormat(RPixelFormat format);
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typedef NS_ENUM(NSUInteger, RTextureFilter)
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{
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RTextureFilterNearest,
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RTextureFilterLinear,
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RTextureFilterCount,
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};
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extern matrix_float4x4 matrix_proj_ortho(float left, float right, float top, float bottom);
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extern matrix_float4x4 make_matrix_float4x4(const float *v);
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#endif /* RendererCommon_h */
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