private unsafe void tライン描画XRGB32(int n)
{
// Snap は RGB32、Textureは X8R8G8B8
UInt32 *ptrTexture = this.ptrTexture[n];
for (int y = n; y < this.n高さpx; y += CDirectShow.n並列度)
{
byte *ptrPixel = ptrSnap + (((this.n高さpx - y) - 1) * this.nスキャンライン幅byte);
// アルファ無視なので一括コピー。CopyMemory() は自前でループ展開するよりも速い。
CWin32.CopyMemory((void *)ptrTexture, (void *)ptrPixel, (uint)(this.n幅px * 4));
ptrTexture += this.n幅px * CDirectShow.n並列度;
}
}
[DllImport(DLL_PATH)] public static extern UIntPtr librg_entity_query(ref librg_ctx_t ctx, UInt32 entity, UInt32 **result);
private unsafe void tライン描画ARGB32(int n)
{
// Snap は RGB32、Textureは A8R8G8B8
UInt32 *ptrTexture = this.ptrTexture[n];
for (int y = n; y < this.n高さpx; y += CDirectShow.n並列度)
{
UInt32 *ptrPixel = (UInt32 *)(ptrSnap + (((this.n高さpx - y) - 1) * this.nスキャンライン幅byte));
//for( int x = 0; x < this.n幅px; x++ )
// *( ptrTexture + x ) = 0xFF000000 | *ptrPixel++;
// ↓ループ展開により高速化。160fps の曲が 200fps まで上がった。
if (this.n幅px == 0)
{
goto LEXIT;
}
UInt32 *pt = ptrTexture;
UInt32 nAlpha = 0xFF000000;
int d = (this.n幅px % 32);
switch (d)
{
case 1: goto L031;
case 2: goto L030;
case 3: goto L029;
case 4: goto L028;
case 5: goto L027;
case 6: goto L026;
case 7: goto L025;
case 8: goto L024;
case 9: goto L023;
case 10: goto L022;
case 11: goto L021;
case 12: goto L020;
case 13: goto L019;
case 14: goto L018;
case 15: goto L017;
case 16: goto L016;
case 17: goto L015;
case 18: goto L014;
case 19: goto L013;
case 20: goto L012;
case 21: goto L011;
case 22: goto L010;
case 23: goto L009;
case 24: goto L008;
case 25: goto L007;
case 26: goto L006;
case 27: goto L005;
case 28: goto L004;
case 29: goto L003;
case 30: goto L002;
case 31: goto L001;
}
L000 : *pt++ = nAlpha | *ptrPixel++;
L001 : *pt++ = nAlpha | *ptrPixel++;
L002 : *pt++ = nAlpha | *ptrPixel++;
L003 : *pt++ = nAlpha | *ptrPixel++;
L004 : *pt++ = nAlpha | *ptrPixel++;
L005 : *pt++ = nAlpha | *ptrPixel++;
L006 : *pt++ = nAlpha | *ptrPixel++;
L007 : *pt++ = nAlpha | *ptrPixel++;
L008 : *pt++ = nAlpha | *ptrPixel++;
L009 : *pt++ = nAlpha | *ptrPixel++;
L010 : *pt++ = nAlpha | *ptrPixel++;
L011 : *pt++ = nAlpha | *ptrPixel++;
L012 : *pt++ = nAlpha | *ptrPixel++;
L013 : *pt++ = nAlpha | *ptrPixel++;
L014 : *pt++ = nAlpha | *ptrPixel++;
L015 : *pt++ = nAlpha | *ptrPixel++;
L016 : *pt++ = nAlpha | *ptrPixel++;
L017 : *pt++ = nAlpha | *ptrPixel++;
L018 : *pt++ = nAlpha | *ptrPixel++;
L019 : *pt++ = nAlpha | *ptrPixel++;
L020 : *pt++ = nAlpha | *ptrPixel++;
L021 : *pt++ = nAlpha | *ptrPixel++;
L022 : *pt++ = nAlpha | *ptrPixel++;
L023 : *pt++ = nAlpha | *ptrPixel++;
L024 : *pt++ = nAlpha | *ptrPixel++;
L025 : *pt++ = nAlpha | *ptrPixel++;
L026 : *pt++ = nAlpha | *ptrPixel++;
L027 : *pt++ = nAlpha | *ptrPixel++;
L028 : *pt++ = nAlpha | *ptrPixel++;
L029 : *pt++ = nAlpha | *ptrPixel++;
L030 : *pt++ = nAlpha | *ptrPixel++;
L031 : *pt++ = nAlpha | *ptrPixel++;
if ((pt - ptrTexture) < this.n幅px)
{
goto L000;
}
LEXIT:
ptrTexture += this.n幅px * CDirectShow.n並列度;
}
}
