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Fix for endianness issues in stretch

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Eric Soroos 2014-11-07 15:49:04 -08:00 committed by homm
parent 2657c0dec0
commit af02f2b29e
1 changed files with 11 additions and 0 deletions
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11
libImaging/Antialias.c
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@ -223,8 +223,13 @@ ImagingStretchHorizontal(Imaging imIn, int xsize, int filter)
ss1 += i2f((UINT8) imIn->image[yy][x*4 + 1]) * k[x - xmin]; ss1 += i2f((UINT8) imIn->image[yy][x*4 + 1]) * k[x - xmin];
ss2 += i2f((UINT8) imIn->image[yy][x*4 + 2]) * k[x - xmin]; ss2 += i2f((UINT8) imIn->image[yy][x*4 + 2]) * k[x - xmin];
} }
#ifdef WORDS_BIGENDIAN
imOut->image32[yy][xx] =
clip8(ss2) << 8 | clip8(ss1) << 16 | clip8(ss0) << 24;
#else
imOut->image32[yy][xx] = imOut->image32[yy][xx] =
clip8(ss0) | clip8(ss1) << 8 | clip8(ss2) << 16; clip8(ss0) | clip8(ss1) << 8 | clip8(ss2) << 16;
#endif
} else { } else {
ss0 = ss1 = ss2 = ss3 = 0.5; ss0 = ss1 = ss2 = ss3 = 0.5;
for (x = xmin; x < xmax; x++) { for (x = xmin; x < xmax; x++) {
@ -233,9 +238,15 @@ ImagingStretchHorizontal(Imaging imIn, int xsize, int filter)
ss2 += i2f((UINT8) imIn->image[yy][x*4 + 2]) * k[x - xmin]; ss2 += i2f((UINT8) imIn->image[yy][x*4 + 2]) * k[x - xmin];
ss3 += i2f((UINT8) imIn->image[yy][x*4 + 3]) * k[x - xmin]; ss3 += i2f((UINT8) imIn->image[yy][x*4 + 3]) * k[x - xmin];
} }
#ifdef WORDS_BIGENDIAN
imOut->image32[yy][xx] =
clip8(ss3) | clip8(ss2) << 8 |
clip8(ss1) << 16 | clip8(ss0) << 24;
#else
imOut->image32[yy][xx] = imOut->image32[yy][xx] =
clip8(ss0) | clip8(ss1) << 8 | clip8(ss0) | clip8(ss1) << 8 |
clip8(ss2) << 16 | clip8(ss3) << 24; clip8(ss2) << 16 | clip8(ss3) << 24;
#endif
} }
} }
break; break;