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better gpubuffer code structure

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This commit is contained in:
Alessandro Proto 2023-02-10 21:45:04 +01:00
parent 392c1b9aca
commit 5a510c6eb6
2 changed files with 81 additions and 40 deletions
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21
Capy64/Runtime/Libraries/GPU.cs
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@ -397,7 +397,8 @@ public class GPU : IPlugin
var buffer = new uint[_game.Width * _game.Height];
_game.Drawing.Canvas.GetData(buffer);
GPUBuffer.Push(L, buffer);
L.PushObject(buffer);
L.SetMetaTable(GPUBuffer.ObjectType);
return 1;
}
@ -406,11 +407,7 @@ public class GPU : IPlugin
{
var L = Lua.FromIntPtr(state);
var buffer = L.CheckObject<uint[]>(1, GPUBuffer.ObjectType, false);
if (buffer is null)
{
L.ArgumentError(1, GPUBuffer.ObjectType + " expected, got " + L.TypeName(L.Type(1)));
}
var buffer = GPUBuffer.CheckBuffer(L, false);
_game.Drawing.Canvas.SetData(buffer);
@ -426,7 +423,8 @@ public class GPU : IPlugin
var buffer = new uint[width * height];
GPUBuffer.Push(L, buffer);
L.PushObject(buffer);
L.SetMetaTable(GPUBuffer.ObjectType);
return 1;
}
@ -435,11 +433,7 @@ public class GPU : IPlugin
{
var L = Lua.FromIntPtr(state);
var buffer = L.CheckObject<uint[]>(1, GPUBuffer.ObjectType, false);
if (buffer is null)
{
L.ArgumentError(1, GPUBuffer.ObjectType + " expected, got " + L.TypeName(L.Type(1)));
}
var buffer = GPUBuffer.CheckBuffer(L, false);
var x = (int)L.CheckInteger(2) - 1;
var y = (int)L.CheckInteger(3) - 1;
@ -490,7 +484,8 @@ public class GPU : IPlugin
var data = new uint[texture.Width * texture.Height];
texture.GetData(data);
GPUBuffer.Push(L, data);
L.PushObject(data);
L.SetMetaTable(GPUBuffer.ObjectType);
L.PushInteger(texture.Width);
L.PushInteger(texture.Height);

100
Capy64/Runtime/Objects/GPUBuffer.cs
View file

@ -1,47 +1,82 @@
using KeraLua;
using Capy64.API;
using KeraLua;
using System;
using System.IO;
namespace Capy64.Runtime.Objects;
public class GPUBuffer
public class GPUBuffer : IPlugin
{
public const string ObjectType = "GPUBuffer";
public static void Push(Lua L, uint[] buffer)
private static LuaRegister[] MetaMethods = new LuaRegister[]
{
L.PushObject(buffer);
if (L.NewMetaTable(ObjectType))
new()
{
L.PushString("__index");
L.PushCFunction(LM_Index);
L.SetTable(-3);
name = "__index",
function = LM_Index,
},
new()
{
name = "__newindex",
function = LM_NewIndex,
},
new()
{
name = "__len",
function = LM_Length,
},
new()
{
name = "__gc",
function = LM_GC,
},
new()
{
name = "__close",
function = LM_GC,
},
new()
{
name = "__tostring",
function = LM_ToString,
},
L.PushString("__newindex");
L.PushCFunction(LM_NewIndex);
L.SetTable(-3);
new(),
};
L.PushString("__len");
L.PushCFunction(LM_Length);
L.SetTable(-3);
public void LuaInit(Lua L)
{
CreateMeta(L);
}
L.PushString("__gc");
L.PushCFunction(LM_GC);
L.SetTable(-3);
public static void CreateMeta(Lua L)
{
L.NewMetaTable(ObjectType);
L.SetFuncs(MetaMethods, 0);
}
L.PushString("__close");
L.PushCFunction(LM_GC);
L.SetTable(-3);
public static uint[] ToBuffer(Lua L, bool gc = false)
{
return L.CheckObject<uint[]>(1, ObjectType, gc);
}
public static uint[] CheckBuffer(Lua L, bool gc = false)
{
var obj = L.CheckObject<uint[]>(1, ObjectType, gc);
if (obj is null)
{
L.Error("attempt to use a closed buffer");
return null;
}
L.SetMetaTable(-2);
return (uint[])obj;
}
private static int LM_Index(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var buffer = L.CheckObject<uint[]>(1, ObjectType, false);
var buffer = CheckBuffer(L, false);
if (!L.IsInteger(2))
{
@ -74,7 +109,7 @@ public class GPUBuffer
{
var L = Lua.FromIntPtr(state);
var buffer = L.CheckObject<uint[]>(1, ObjectType, false);
var buffer = CheckBuffer(L, false);
if (!L.IsInteger(2))
{
return 0;
@ -111,7 +146,7 @@ public class GPUBuffer
{
var L = Lua.FromIntPtr(state);
L.CheckObject<uint[]>(1, ObjectType, true);
CheckBuffer(L, true);
return 0;
}
@ -120,10 +155,21 @@ public class GPUBuffer
{
var L = Lua.FromIntPtr(state);
var buffer = L.CheckObject<uint[]>(1, ObjectType, false);
var buffer = CheckBuffer(L, false);
L.PushInteger(buffer.LongLength);
return 1;
}
private static int LM_ToString(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var buffer = CheckBuffer(L, false);
L.PushString(ObjectType);
return 1;
}
}