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scaffolding for framebuffer functions

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This commit is contained in:
Lukas Höppner
2026-08-12 22:44:54 +02:00
parent 84ba0a609a
commit 7c87a38a6a
9 changed files with 384 additions and 113 deletions
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simulator/Nova64Core.cs
+81 -5
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@@ -1,9 +1,75 @@
using System;
using System.Runtime.InteropServices;
internal static class Nova64Core
internal static class Nova64
{
private const string LibName = "nova64_core";
/* ========================================================================== */
/* Enums */
/* ========================================================================== */
[Flags]
public enum Nova64Transform : uint
{
None = 0,
FlipH = 1 << 0,
FlipV = 1 << 1,
Rot90 = 1 << 2,
Rot180 = 1 << 3,
Rot270 = 1 << 4
}
/* ========================================================================== */
/* PPU Delegates */
/* ========================================================================== */
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuFillRectDelegate(IntPtr dst, uint dstStride, int x, int y, int w, int h, ushort color);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuBlitDelegate(IntPtr src, uint srcStride, IntPtr dst, uint dstStride, int srcX, int srcY, int dstX, int dstY, int w, int h);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuBlitColorKeyDelegate(IntPtr src, uint srcStride, IntPtr dst, uint dstStride, int srcX, int srcY, int dstX, int dstY, int w, int h, ushort keyColor);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuBlendDelegate(IntPtr src, uint srcStride, IntPtr dst, uint dstStride, int srcX, int srcY, int dstX, int dstY, int w, int h, byte globalAlpha);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuBlitTransformDelegate(IntPtr src, uint srcStride, IntPtr dst, uint dstStride, int srcX, int srcY, int dstX, int dstY, int w, int h, Nova64Transform transform);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuBlitScaleDelegate(IntPtr src, uint srcStride, int srcW, int srcH, IntPtr dst, uint dstStride, int dstX, int dstY, int dstW, int dstH);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void PpuWaitIdleDelegate();
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
[return: MarshalAs(UnmanagedType.I1)]
public delegate bool PpuIsBusyDelegate();
/* ========================================================================== */
/* PPU Interface Struct */
/* ========================================================================== */
[StructLayout(LayoutKind.Sequential)]
public struct Nova64PpuInterface
{
public IntPtr fill_rect;
public IntPtr blit;
public IntPtr blit_colorkey;
public IntPtr blend;
public IntPtr blit_transform;
public IntPtr blit_scale;
public IntPtr wait_idle;
public IntPtr is_busy;
}
/* ========================================================================== */
/* I/O Delegates */
/* ========================================================================== */
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void DisplayFlushDelegate(IntPtr buffer, ushort width, ushort height);
@@ -17,15 +83,18 @@ internal static class Nova64Core
public delegate int SdGetFileSizeDelegate(uint slotIdx, string filePath);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void CartridgeStatusDelegate(uint slotIdx, bool isInserted);
public delegate void CartridgeStatusDelegate(uint slotIdx, [MarshalAs(UnmanagedType.I1)] bool isInserted);
[UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
public delegate void LogMessageDelegate([MarshalAs(UnmanagedType.LPStr)] string message);
/* ========================================================================== */
/* I/O Interface Struct */
/* ========================================================================== */
[StructLayout(LayoutKind.Sequential)]
public struct Nova64IoInterface
{
public IntPtr display_flush;
public IntPtr audio_output;
public IntPtr sd_read_file;
public IntPtr sd_get_file_size;
@@ -33,18 +102,25 @@ internal static class Nova64Core
public IntPtr log_message;
}
/* ========================================================================== */
/* Native Imports */
/* ========================================================================== */
[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
public static extern bool nova64_init(IntPtr io_interface);
[return: MarshalAs(UnmanagedType.I1)]
public static extern bool nova64_init(IntPtr io_interface, IntPtr ppu_interface);
[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
public static extern int nova64_main();
[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
[return: MarshalAs(UnmanagedType.I1)]
public static extern bool nova64_shutdown();
[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
[return: MarshalAs(UnmanagedType.I1)]
public static extern bool nova64_is_finalized();
[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
public static extern uint nova64_get_version();
}
}