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preliminary C api for libgambatte, plus pinvoke bindings 

i'm a bit out of my league on this one, but that's ok
This commit is contained in:
goyuken 2012-09-08 20:22:07 +00:00
parent 285b9581f2
commit 3061abbc4b
6 changed files with 304 additions and 0 deletions
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1
BizHawk.Emulation/BizHawk.Emulation.csproj
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@ -112,6 +112,7 @@
<Compile Include="Consoles\Coleco\VDP.Tables.cs" />
<Compile Include="Consoles\GB\Graphics.cs" />
<Compile Include="Consoles\GB\Input.cs" />
<Compile Include="Consoles\GB\LibGambatte.cs" />
<Compile Include="Consoles\GB\MemoryMap.cs" />
<Compile Include="Consoles\GB\GB.cs" />
<Compile Include="Consoles\Intellivision\Cartridge.cs" />

99
BizHawk.Emulation/Consoles/GB/LibGambatte.cs Normal file
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@ -0,0 +1,99 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace BizHawk.Emulation.Consoles.GB
{
/// <summary>
/// static bindings into libgambatte.dll
/// </summary>
public static class LibGambatte
{
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr gambatte_create();
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_destroy(IntPtr core);
[Flags]
public enum LoadFlags : uint
{
/// <summary>Treat the ROM as not having CGB support regardless of what its header advertises</summary>
FORCE_DMG = 1,
/// <summary>Use GBA intial CPU register values when in CGB mode.</summary>
GBA_CGB = 2,
/// <summary>Use heuristics to detect and support some multicart MBCs disguised as MBC1.</summary>
MULTICART_COMPAT = 4
}
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_load(IntPtr core, string filename, LoadFlags flags);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern long gambatte_runfor(IntPtr core, uint[] videobuf, int pitch, short[] soundbuf, ref uint samples);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_reset(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_setdmgpalettecolor(IntPtr core, uint palnum, uint colornum, uint rgb32);
[Flags]
public enum Buttons
{
A = 0x01,
B = 0x02,
SELECT = 0x04,
START = 0x08,
RIGHT = 0x10,
LEFT = 0x20,
UP = 0x40,
DOWN = 0x80
}
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_setinputgetter(IntPtr core, Func<Buttons> getinput);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_setsavedir(IntPtr core, string sdir);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_iscgb(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_isloaded(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_savesavedate(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_savestate(IntPtr core, uint[] videobuf, int pitch);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_loadstate(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_savestate_file(IntPtr core, uint[] videobuf, int pitch, string filepath);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_loadstate_file(IntPtr core, string filepath);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_selectstate(IntPtr core, int n);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int gambatte_currentstate(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern string gambatte_romtitle(IntPtr core);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_setgamegenie(IntPtr core, string codes);
[DllImport("libgambatte.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void gambatte_setgameshark(IntPtr core, string codes);
}
}

2
libgambatte/libgambatte.vcxproj
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@ -79,6 +79,7 @@
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="src\bitmap_font.cpp" />
<ClCompile Include="src\cinterface.cpp" />
<ClCompile Include="src\cpu.cpp" />
<ClCompile Include="src\file\file.cpp" />
<ClCompile Include="src\gambatte.cpp" />
@ -112,6 +113,7 @@
<ClInclude Include="include\gbint.h" />
<ClInclude Include="include\inputgetter.h" />
<ClInclude Include="src\bitmap_font.h" />
<ClInclude Include="src\cinterface.h" />
<ClInclude Include="src\counterdef.h" />
<ClInclude Include="src\cpu.h" />
<ClInclude Include="src\file\file.h" />

6
libgambatte/libgambatte.vcxproj.filters
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@ -99,6 +99,9 @@
<ClCompile Include="src\video\sprite_mapper.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\cinterface.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="src\statesaver.h">
@ -218,5 +221,8 @@
<ClInclude Include="include\inputgetter.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\cinterface.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
</Project>

148
libgambatte/src/cinterface.cpp Normal file
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#include "cinterface.h"
#include "gambatte.h"
using namespace gambatte;
__declspec(dllexport) void *gambatte_create()
{
GB *g = new GB();
return (void *) g;
}
__declspec(dllexport) void gambatte_destroy(void *core)
{
GB *g = (GB *) core;
delete g;
}
__declspec(dllexport) int gambatte_load(void *core, const char *filename, unsigned flags)
{
GB *g = (GB *) core;
int ret = g->load(std::string(filename), flags);
return ret;
}
__declspec(dllexport) long gambatte_runfor(void *core, unsigned long *videobuf, int pitch, short *soundbuf, unsigned *samples)
{
GB *g = (GB *) core;
unsigned sampv = *samples;
long ret = g->runFor(videobuf, pitch, (unsigned long *) soundbuf, sampv);
*samples = sampv;
return ret;
}
__declspec(dllexport) void gambatte_reset(void *core)
{
GB *g = (GB *) core;
g->reset();
}
__declspec(dllexport) void gambatte_setdmgpalettecolor(void *core, unsigned palnum, unsigned colornum, unsigned rgb32)
{
GB *g = (GB *) core;
g->setDmgPaletteColor(palnum, colornum, rgb32);
}
class CInputGetter: public InputGetter
{
public:
unsigned (*inputfunc)(void);
unsigned operator()()
{
return inputfunc ();
}
};
__declspec(dllexport) void gambatte_setinputgetter(void *core, unsigned (*getinput)(void))
{
GB *g = (GB *) core;
CInputGetter *cig = new CInputGetter();
cig->inputfunc = getinput;
// how do i manage the lifetime of cig?
g->setInputGetter(cig);
}
__declspec(dllexport) void gambatte_setsavedir(void *core, const char *sdir)
{
GB *g = (GB *) core;
g->setSaveDir(std::string(sdir));
}
__declspec(dllexport) int gambatte_iscgb(void *core)
{
GB *g = (GB *) core;
return g->isCgb();
}
__declspec(dllexport) int gambatte_isloaded(void *core)
{
GB *g = (GB *) core;
return g->isLoaded();
}
__declspec(dllexport) void gambatte_savesavedate(void *core)
{
GB *g = (GB *) core;
g->saveSavedata();
}
__declspec(dllexport) int gambatte_savestate(void *core, const unsigned long *videobuf, int pitch)
{
GB *g = (GB *) core;
return g->saveState(videobuf, pitch);
}
__declspec(dllexport) int gambatte_loadstate(void *core)
{
GB *g = (GB *) core;
return g->loadState();
}
__declspec(dllexport) int gambatte_savestate_file(void *core, const unsigned long *videobuf, int pitch, const char *filepath)
{
GB *g = (GB *) core;
return g->saveState(videobuf, pitch, std::string(filepath));
}
__declspec(dllexport) int gambatte_loadstate_file(void *core, const char *filepath)
{
GB *g = (GB *) core;
return g->loadState(std::string(filepath));
}
__declspec(dllexport) void gambatte_selectstate(void *core, int n)
{
GB *g = (GB *) core;
g->selectState(n);
}
__declspec(dllexport) int gambatte_currentstate(void *core)
{
GB *g = (GB *) core;
return g->currentState();
}
static char horriblebuff[64];
__declspec(dllexport) const char *gambatte_romtitle(void *core)
{
GB *g = (GB *) core;
const char *s = g->romTitle().c_str();
std::strncpy(horriblebuff, s, 63);
horriblebuff[63] = 0;
return horriblebuff;
}
__declspec(dllexport) void gambatte_setgamegenie(void *core, const char *codes)
{
GB *g = (GB *) core;
g->setGameGenie(std::string(codes));
}
__declspec(dllexport) void gambatte_setgameshark(void *core, const char *codes)
{
GB *g = (GB *) core;
g->setGameShark(std::string(codes));
}

48
libgambatte/src/cinterface.h Normal file
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#ifndef CINTERFACE_H
#define CINTERFACE_H
extern "C"
{
__declspec(dllexport) void *gambatte_create();
__declspec(dllexport) void gambatte_destroy(void *core);
__declspec(dllexport) int gambatte_load(void *core, const char *filename, unsigned flags);
__declspec(dllexport) long gambatte_runfor(void *core, unsigned long *videobuf, int pitch, short *soundbuf, unsigned *samples);
__declspec(dllexport) void gambatte_reset(void *core);
__declspec(dllexport) void gambatte_setdmgpalettecolor(void *core, unsigned palnum, unsigned colornum, unsigned rgb32);
__declspec(dllexport) void gambatte_setinputgetter(void *core, unsigned (*getinput)(void));
__declspec(dllexport) void gambatte_setsavedir(void *core, const char *sdir);
__declspec(dllexport) int gambatte_iscgb(void *core);
__declspec(dllexport) int gambatte_isloaded(void *core);
__declspec(dllexport) void gambatte_savesavedate(void *core);
__declspec(dllexport) int gambatte_savestate(void *core, const unsigned long *videobuf, int pitch);
__declspec(dllexport) int gambatte_loadstate(void *core);
__declspec(dllexport) int gambatte_savestate_file(void *core, const unsigned long *videobuf, int pitch, const char *filepath);
__declspec(dllexport) int gambatte_loadstate_file(void *core, const char *filepath);
__declspec(dllexport) void gambatte_selectstate(void *core, int n);
__declspec(dllexport) int gambatte_currentstate(void *core);
__declspec(dllexport) const char *gambatte_romtitle(void *core);
__declspec(dllexport) void gambatte_setgamegenie(void *core, const char *codes);
__declspec(dllexport) void gambatte_setgameshark(void *core, const char *codes);
}
#endif