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Adjusted scanline filter (Thanks Tanooki16!) (#970)
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@ -495,16 +495,26 @@ void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
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template<int GuiScale>
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void Scanlines (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
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{
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while (height--) {
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uint16 *dp = (uint16 *) dstPtr;
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for (int i = 0; i < width; ++i, dp += 2) {
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uint16 sp = *((uint16 *)srcPtr + i);
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*(dp) = sp;
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*(dp + 1) = sp;
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*(dp + dstPitch) = 0;
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*(dp + dstPitch + 1) = 0;
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unsigned int nextlineSrc = srcPitch / sizeof(uint16);
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uint16 *p = (uint16 *)srcPtr;
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unsigned int nextlineDst = dstPitch / sizeof(uint16);
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uint16 *q = (uint16 *)dstPtr;
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while(height--) {
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for (int i = 0, j = 0; i < width; ++i, j += 2) {
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uint16 p1 = *(p + i);
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uint32 pi;
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pi = (((p1 & Mask_2) * 6) >> 3) & Mask_2;
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pi |= (((p1 & Mask13) * 6) >> 3) & Mask13;
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*(q + j) = p1;
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*(q + j + 1) = p1;
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*(q + j + nextlineDst) = (uint16)pi;
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*(q + j + nextlineDst + 1) = (uint16)pi;
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}
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dstPtr += dstPitch<<1;
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srcPtr += srcPitch;
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p += nextlineSrc;
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q += nextlineDst << 1;
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}
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}
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