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@@ -56,15 +56,17 @@ TightDecoder::FilterGradient24(const rdr::U8 *inbuf, |
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int rectWidth = r.width(); |
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for (y = 0; y < rectHeight; y++) { |
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/* First pixel in a row */ |
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for (c = 0; c < 3; c++) { |
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pix[c] = inbuf[y*rectWidth*3+c] + prevRow[c]; |
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thisRow[c] = pix[c]; |
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} |
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pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1); |
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for (x = 0; x < rectWidth; x++) { |
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/* First pixel in a row */ |
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if (x == 0) { |
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for (c = 0; c < 3; c++) { |
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pix[c] = inbuf[y*rectWidth*3+c] + prevRow[c]; |
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thisRow[c] = pix[c]; |
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} |
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pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1); |
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continue; |
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} |
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/* Remaining pixels of a row */ |
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for (x = 1; x < rectWidth; x++) { |
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for (c = 0; c < 3; c++) { |
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est[c] = prevRow[x*3+c] + pix[c] - prevRow[(x-1)*3+c]; |
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if (est[c] > 0xff) { |
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@@ -103,17 +105,20 @@ void TightDecoder::FilterGradient(const rdr::U8* inbuf, |
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int rectWidth = r.width(); |
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for (y = 0; y < rectHeight; y++) { |
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/* First pixel in a row */ |
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pf.rgbFromBuffer(pix, &inbuf[y*rectWidth], 1); |
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for (c = 0; c < 3; c++) |
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pix[c] += prevRow[c]; |
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for (x = 0; x < rectWidth; x++) { |
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/* First pixel in a row */ |
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if (x == 0) { |
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pf.rgbFromBuffer(pix, &inbuf[y*rectWidth], 1); |
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for (c = 0; c < 3; c++) |
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pix[c] += prevRow[c]; |
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memcpy(thisRow, pix, sizeof(pix)); |
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memcpy(thisRow, pix, sizeof(pix)); |
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pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1); |
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pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1); |
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continue; |
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} |
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/* Remaining pixels of a row */ |
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for (x = 1; x < rectWidth; x++) { |
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for (c = 0; c < 3; c++) { |
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est[c] = prevRow[x*3+c] + pix[c] - prevRow[(x-1)*3+c]; |
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if (est[c] > 255) { |