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Differential D8794 Diff 28645 source/blender/imbuf/intern/imageprocess.c

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source/blender/imbuf/intern/imageprocess.c

Show First 20 Lines • Show All 195 Lines • ▼ Show 20 Linesvoid bilinear_interpolation_color_wrap(
} }
if (outI) { if (outI) {
/* sample including outside of edges of image */ /* sample including outside of edges of image */
row1I = (unsigned char *)in->rect + ((size_t)in->x) * y1 * 4 + 4 * x1; row1I = (unsigned char *)in->rect + ((size_t)in->x) * y1 * 4 + 4 * x1;
row2I = (unsigned char *)in->rect + ((size_t)in->x) * y2 * 4 + 4 * x1; row2I = (unsigned char *)in->rect + ((size_t)in->x) * y2 * 4 + 4 * x1;
row3I = (unsigned char *)in->rect + ((size_t)in->x) * y1 * 4 + 4 * x2; row3I = (unsigned char *)in->rect + ((size_t)in->x) * y1 * 4 + 4 * x2;
row4I = (unsigned char *)in->rect + ((size_t)in->x) * y2 * 4 + 4 * x2; row4I = (unsigned char *)in->rect + ((size_t)in->x) * y2 * 4 + 4 * x2;
/* need to add 0.5 to avoid rounding down (causes darken with the smear brush) /* Tested with white images and this should not wrap back to zero. */
* tested with white images and this should not wrap back to zero */
outI[0] = roundf(ma_mb * row1I[0] + a_mb * row3I[0] + ma_b * row2I[0] + a_b * row4I[0]); outI[0] = roundf(ma_mb * row1I[0] + a_mb * row3I[0] + ma_b * row2I[0] + a_b * row4I[0]);
outI[1] = roundf(ma_mb * row1I[1] + a_mb * row3I[1] + ma_b * row2I[1] + a_b * row4I[1]); outI[1] = roundf(ma_mb * row1I[1] + a_mb * row3I[1] + ma_b * row2I[1] + a_b * row4I[1]);
outI[2] = roundf(ma_mb * row1I[2] + a_mb * row3I[2] + ma_b * row2I[2] + a_b * row4I[2]); outI[2] = roundf(ma_mb * row1I[2] + a_mb * row3I[2] + ma_b * row2I[2] + a_b * row4I[2]);
outI[3] = roundf(ma_mb * row1I[3] + a_mb * row3I[3] + ma_b * row2I[3] + a_b * row4I[3]); outI[3] = roundf(ma_mb * row1I[3] + a_mb * row3I[3] + ma_b * row2I[3] + a_b * row4I[3]);
} }
} }
void bilinear_interpolation(ImBuf *in, ImBuf *out, float u, float v, int xout, int yout) void bilinear_interpolation(ImBuf *in, ImBuf *out, float u, float v, int xout, int yout)
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