diff options
Diffstat (limited to 'osframework/source/SexyAppFramework/DDI_NormalBlt_Volatile.inc')
| -rw-r--r-- | osframework/source/SexyAppFramework/DDI_NormalBlt_Volatile.inc | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/osframework/source/SexyAppFramework/DDI_NormalBlt_Volatile.inc b/osframework/source/SexyAppFramework/DDI_NormalBlt_Volatile.inc new file mode 100644 index 0000000..67e7051 --- /dev/null +++ b/osframework/source/SexyAppFramework/DDI_NormalBlt_Volatile.inc @@ -0,0 +1,194 @@ +{
+ if (mNoLock)
+ return;
+
+ // Special path that avoids generating cached native alpha data
+
+ LPDIRECTDRAWSURFACE aSurface = GetSurface();
+
+ if (!LockSurface())
+ return;
+
+ if (mLockedSurfaceDesc.ddpfPixelFormat.dwRGBBitCount == 16)
+ {
+ ushort* aDestPixelsRow = ((ushort*) mLockedSurfaceDesc.lpSurface) + (theY * mLockedSurfaceDesc.lPitch/2) + theX;
+ SRC_TYPE* aSrcPixelsRow = aSrcBits +
+ (theSrcRect.mY * theImage->mWidth) + theSrcRect.mX;
+
+ ulong aRMask = mLockedSurfaceDesc.ddpfPixelFormat.dwRBitMask;
+ ulong aGMask = mLockedSurfaceDesc.ddpfPixelFormat.dwGBitMask;
+ ulong aBMask = mLockedSurfaceDesc.ddpfPixelFormat.dwBBitMask;
+
+ ulong aRRoundAdd = aRMask >> 1;
+ ulong aGRoundAdd = aGMask >> 1;
+ ulong aBRoundAdd = aBMask >> 1;
+
+#ifdef OPTIMIZE_SOFTWARE_DRAWING
+ bool performNormalBlit = true;
+ if (gOptimizeSoftwareDrawing) // we know the ordering of the bit masks.
+ {
+ if (aGMask == 0x7E0)
+ {
+ performNormalBlit = false;
+ for (int y = 0; y < theSrcRect.mHeight; y++)
+ {
+ ushort* aDestPixels = aDestPixelsRow;
+ SRC_TYPE* aSrcPixels = aSrcPixelsRow;
+
+ for (int x = 0; x < theSrcRect.mWidth; x++)
+ {
+ ulong src = NEXT_SRC_COLOR;
+ ulong dest = *aDestPixels;
+
+ int a = src >> 27;
+ //int oma = 256 - a;
+
+ src = ((src & 0xFC00) << 11) + ((src >> 8) & 0xF800) + ((src >> 3) & 0x1F);
+ dest = (dest | (dest << 16)) & 0x7E0F81F;
+ dest += ((src - dest) * a) >> 5;
+ dest &= 0x7E0F81F;
+ *(aDestPixels++) = dest | (dest >> 16);
+ //(((((dest & aBMask) * oma) + (((src & 0x000000FF) * a * aBMask) >> 8) + aBRoundAdd) >> 8) & aBMask) +
+ //(((((dest & aGMask) * oma) + ((((src & 0x0000FF00) >> 8) * a * aGMask) >> 8) + aGRoundAdd) >> 8) & aGMask) +
+ //(((((dest & aRMask) * oma) + ((((src & 0x00FF0000) >> 16) * a * aRMask) >> 8) + aRRoundAdd) >> 8) & aRMask);
+ }
+
+ aDestPixelsRow += mLockedSurfaceDesc.lPitch/2;
+ aSrcPixelsRow += theImage->mWidth;
+ }
+ }
+ else if (aGMask == 0x3E0)
+ {
+ performNormalBlit = false;
+ for (int y = 0; y < theSrcRect.mHeight; y++)
+ {
+ ushort* aDestPixels = aDestPixelsRow;
+ SRC_TYPE* aSrcPixels = aSrcPixelsRow;
+
+ for (int x = 0; x < theSrcRect.mWidth; x++)
+ {
+ ulong src = NEXT_SRC_COLOR;
+ ulong dest = *aDestPixels;
+
+ int a = src >> 27;
+ //int oma = 256 - a;
+
+ src = ((src & 0xF800) << 10) + ((src >> 9) & 0x7C00) + ((src >> 3) & 0x1F);
+ dest = (dest | (dest << 16)) & 0x3E07C1F;
+ dest += ((src - dest) * a) >> 5; // 1*d - a*d = (1-a)*d = oma*d :)
+ dest &= 0x3E07C1F;
+ *(aDestPixels++) = dest | (dest >> 16);
+ //(((((dest & aBMask) * oma) + (((src & 0x000000FF) * a * aBMask) >> 8) + aBRoundAdd) >> 8) & aBMask) +
+ //(((((dest & aGMask) * oma) + ((((src & 0x0000FF00) >> 8) * a * aGMask) >> 8) + aGRoundAdd) >> 8) & aGMask) +
+ //(((((dest & aRMask) * oma) + ((((src & 0x00FF0000) >> 16) * a * aRMask) >> 8) + aRRoundAdd) >> 8) & aRMask);
+ }
+
+
+ aDestPixelsRow += mLockedSurfaceDesc.lPitch/2;
+ aSrcPixelsRow += theImage->mWidth;
+ }
+ }
+ }
+ if (performNormalBlit)
+#endif
+ {
+ for (int y = 0; y < theSrcRect.mHeight; y++)
+ {
+ ushort* aDestPixels = aDestPixelsRow;
+ SRC_TYPE* aSrcPixels = aSrcPixelsRow;
+
+ for (int x = 0; x < theSrcRect.mWidth; x++)
+ {
+ ulong src = NEXT_SRC_COLOR;
+ ulong dest = *aDestPixels;
+
+ int a = src >> 24;
+ int oma = 256 - a;
+
+ *(aDestPixels++) =
+ (((((dest & aBMask) * oma) + (((src & 0x000000FF) * a * aBMask) >> 8) + aBRoundAdd) >> 8) & aBMask) +
+ (((((dest & aGMask) * oma) + ((((src & 0x0000FF00) >> 8) * a * aGMask) >> 8) + aGRoundAdd) >> 8) & aGMask) +
+ (((((dest & aRMask) * oma) + ((((src & 0x00FF0000) >> 16) * a * aRMask) >> 8) + aRRoundAdd) >> 8) & aRMask);
+ }
+
+ aDestPixelsRow += mLockedSurfaceDesc.lPitch/2;
+ aSrcPixelsRow += theImage->mWidth;
+ }
+ }
+ }
+ else if (mLockedSurfaceDesc.ddpfPixelFormat.dwRGBBitCount == 32)
+ {
+ ulong* aDestPixelsRow = ((ulong*) mLockedSurfaceDesc.lpSurface) + (theY * mLockedSurfaceDesc.lPitch/4) + theX;
+ SRC_TYPE* aSrcPixelsRow = aSrcBits +
+ (theSrcRect.mY * theImage->mWidth) + theSrcRect.mX;
+
+ ulong aRMask = mLockedSurfaceDesc.ddpfPixelFormat.dwRBitMask;
+ ulong aGMask = mLockedSurfaceDesc.ddpfPixelFormat.dwGBitMask;
+ ulong aBMask = mLockedSurfaceDesc.ddpfPixelFormat.dwBBitMask;
+
+ ulong aRRoundAdd = aRMask >> 1;
+ ulong aGRoundAdd = aGMask >> 1;
+ ulong aBRoundAdd = aBMask >> 1;
+
+#ifdef OPTIMIZE_SOFTWARE_DRAWING
+ if (gOptimizeSoftwareDrawing)
+ {
+ for (int y = 0; y < theSrcRect.mHeight; y++)
+ {
+ ulong* aDestPixels = aDestPixelsRow;
+ SRC_TYPE* aSrcPixels = aSrcPixelsRow;
+
+ for (int x = 0; x < theSrcRect.mWidth; x++)
+ {
+ ulong src = NEXT_SRC_COLOR;
+ ulong dest = *aDestPixels;
+
+ int a = src >> 24;
+ //int oma = 256 - a;
+ ulong srctmp = src & 0xFF00FF;
+ ulong desttmp = dest & 0xFF00FF;
+ desttmp = (desttmp + (((srctmp - desttmp) * a) >> 8)) & 0xFF00FF;
+ src &= 0x00FF00;
+ dest &= 0x00FF00;
+ dest = (dest + (((src - dest) * a) >> 8)) & 0x00FF00;
+
+ *(aDestPixels++) = dest | desttmp;
+ //(((((dest & aBMask) * oma) + ((((src & 0x000000FF) * a) >> 8) * aBMask) + aBRoundAdd) >> 8) & aBMask) +
+ //(((((dest & aGMask) * oma) + (((((src & 0x0000FF00) >> 8) * a) >> 8) * aGMask) + aGRoundAdd) >> 8) & aGMask) +
+ //(((((dest & aRMask) * oma) + (((((src & 0x00FF0000) >> 16) * a) >> 8) * aRMask) + aRRoundAdd) >> 8) & aRMask);
+ }
+
+ aDestPixelsRow += mLockedSurfaceDesc.lPitch/4;
+ aSrcPixelsRow += theImage->mWidth;
+ }
+ }
+ else
+#endif
+ {
+ for (int y = 0; y < theSrcRect.mHeight; y++)
+ {
+ ulong* aDestPixels = aDestPixelsRow;
+ SRC_TYPE* aSrcPixels = aSrcPixelsRow;
+
+ for (int x = 0; x < theSrcRect.mWidth; x++)
+ {
+ ulong src = NEXT_SRC_COLOR;
+ ulong dest = *aDestPixels;
+
+ int a = src >> 24;
+ int oma = 256 - a;
+
+ *(aDestPixels++) =
+ (((((dest & aBMask) * oma) + ((((src & 0x000000FF) * a) >> 8) * aBMask) + aBRoundAdd) >> 8) & aBMask) +
+ (((((dest & aGMask) * oma) + (((((src & 0x0000FF00) >> 8) * a) >> 8) * aGMask) + aGRoundAdd) >> 8) & aGMask) +
+ (((((dest & aRMask) * oma) + (((((src & 0x00FF0000) >> 16) * a) >> 8) * aRMask) + aRRoundAdd) >> 8) & aRMask);
+ }
+
+ aDestPixelsRow += mLockedSurfaceDesc.lPitch/4;
+ aSrcPixelsRow += theImage->mWidth;
+ }
+ }
+ }
+
+ UnlockSurface();
+}
\ No newline at end of file |