AutoHotkey Community

Posted: **28 Oct 2017, 09:21**

Can someone help to make a 64bit compatible mcode from Tic's example for Gdip_AlphaMask , the one posted is x86 machine code only.
Or am i wrong to think that this is the reason it works with ahk 32bit and not with ahk 64bit or does it depend on the cpu only?
Thank you in advance

see https://autohotkey.com/board/topic/1034 ... -aliasing/

Code: Select all

int Gdip_AlphaMask(unsigned int * Bitmap, unsigned int * BitmapMask, unsigned int * BitmapNew, int w1, int h1, int w2, int h2, int Stride1, int Stride2, int sx, int sy, int invert)
{
    int o1 = Stride1/4, o2 = Stride2/4;
    if (!invert)
    {
        for (int y = 0; y < h2; ++y)
        {
            for (int x = 0; x < w2; ++x)
            {
                BitmapNew[(x+sx)+(y+sy)*o1] = (BitmapMask[x+(y*o2)] & 0xff000000) | (Bitmap[(x+sx)+(y+sy)*o1] & 0x00ffffff);
            }
        }
    }
    else
    {
        for (int y = 0; y < h2; ++y)
        {
            for (int x = 0; x < w2; ++x)
            {
                BitmapNew[(x+sx)+(y+sy)*o1] = (0xff000000 - (BitmapMask[x+(y*o2)] & 0xff000000)) | (Bitmap[(x+sx)+(y+sy)*o1] & 0x00ffffff);
            }
        }
    }
    return 0;
}

Posted: **28 Oct 2017, 10:10**

You are correct, the MCode will be different for 32 bit vs 64 bit. I've rewritten the function to work on any version of AHK. Be sure to use a 64 bit compatible version of GDIP (gdip_all.ahk).

Code: Select all

MCode(mcode)
{
  static e := {1:4, 2:1}, c := (A_PtrSize=8) ? "x64" : "x86"
  if (!regexmatch(mcode, "^([0-9]+),(" c ":|.*?," c ":)([^,]+)", m))
    return
  if (!DllCall("crypt32\CryptStringToBinary", "str", m3, "uint", 0, "uint", e[m1], "ptr", 0, "uint*", s, "ptr", 0, "ptr", 0))
    return
  p := DllCall("GlobalAlloc", "uint", 0, "ptr", s, "ptr")
  if (c="x64")
    DllCall("VirtualProtect", "ptr", p, "ptr", s, "uint", 0x40, "uint*", op)
  if (DllCall("crypt32\CryptStringToBinary", "str", m3, "uint", 0, "uint", e[m1], "ptr", p, "uint*", s, "ptr", 0, "ptr", 0))
    return p
  DllCall("GlobalFree", "ptr", p)
}


Gdip_AlphaMask(pBitmap, pBitmapMask, x, y, invert=0) {    ; by Tic. http://www.autohotkey.com/board/topic/103475-gdi-cutting-anti-aliasing/#entry638772
    static _AlphaMask := MCode("
(LTrim Join
1,x86:518b4424249983e2035355568d0c028b4424349983e203c1f902578d3402c1fe02837c2444000f85980000008b4424
308944243885c00f8e340100008d1c8d000000000faf4c24408d14b500000000895c24348b7424208b5c241c89542444034c
243c8d2c8e8b4c242c8b742434669085c97e3b8b7c24188bd52b7c24208bc38bf18b0c178d40043348fc8d520481e1ffffff
003348fc894afc83ee0175e38b4424388b4c242c8b5424448b74243403ee03da83e8018944243875b45f5e5d33c05b59c38b
5424308954241085d20f8e9c0000008b7c24208d04b5000000008b6c241c894424348d048d000000000faf4c24408b5c2434
894424388bf0034c243c8d048f8b4c242c894424440f1f400085c97e4b8b5c24188bd02bdf8bf58bf98b068d760425000000
ff8d5204b9000000ff2bc88b441afc25ffffff000bc8894afc83ef0175d98b4424448b5424108b4c242c8b5c24348b742438
8b7c242003c603eb83ea01894424448954241075a05f5e5d33c05b59c3,x64:48895c24084c8944241848895424105556574
1544155415641574883ec108b8424900000004c8bc248637424789983e2034c8be903c2c1f8024c63d08b842488000000998
3e20303c2c1f80283bc24a8000000004863c848890c240f85a60000008b8c248000000085c90f8e3a0100004c63bc24a0000
0004e8d3495000000004c63a424980000004533c9458bd9498bea498bd88bf94885f67e584c8b5424604b8d1439480faf142
4488bc3492bd34903d448c1e202492bd04c03d24e8d042a488bd60f1f4000660f1f840000000000418b0c003308488d40048
1e1ffffff003348fc41894c02fc4883ea0175e24c8b4424584c03dd4903de49ffc14883ef017594e9a30000008b842480000
00085c00f8e940000004c63b424a00000004533c94c63bc2498000000418bd94c8b642458498bea8bf84885f67e634c8b542
4604b8d1431480fafd14c8bdb4c2bda4d2bdf49c1e3024a8d043a4d2bdd4c8d0485000000004d03dc4d03c5488bd64d2bd54
38b04184d8d400425000000ffb9000000ff2bc8418b40fc25ffffff000bc843894c02fc4883ea0175d6488b0c244803dd49f
fc14883ef01758c33c0488b5c24504883c410415f415e415d415c5f5e5dc3
)")

    Gdip_GetDimensions(pBitmap, w1, h1), Gdip_GetDimensions(pBitmapMask, w2, h2)
    pBitmapNew := Gdip_CreateBitmap(w1, h1)
    if !pBitmapNew
        return -1

    E1 := Gdip_LockBits(pBitmap, 0, 0, w1, h1, Stride1, Scan01, BitmapData1)
    E2 := Gdip_LockBits(pBitmapMask, 0, 0, w2, h2, Stride2, Scan02, BitmapData2)
    E3 := Gdip_LockBits(pBitmapNew, 0, 0, w1, h1, Stride3, Scan03, BitmapData3)
    if (E1 || E2 || E3)
        return -2

    E := DllCall(_AlphaMask, "ptr", Scan01, "ptr", Scan02, "ptr", Scan03, "int", w1, "int", h1, "int", w2, "int", h2, "int", Stride1, "int", Stride2, "int", x, "int", y, "int", invert, "cdecl int")
    Gdip_UnlockBits(pBitmap, BitmapData1), Gdip_UnlockBits(pBitmapMask, BitmapData2), Gdip_UnlockBits(pBitmapNew, BitmapData3)

    return (E = "") ? -3 : pBitmapNew
}

Posted: **28 Oct 2017, 10:16**

Thank you very much LinearSpoon, much appreciated

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