forked from tTh/FloatImg
func 'fimg_mul_2' added
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@ -14,6 +14,8 @@ int essai_ecrire_tiff(FloatImg *src, char *fname)
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/* bon, tout cela semble bien tortueux ! */
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fprintf(stderr, "%s %s to be implemented\n", __FILE__, __func__);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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@ -98,6 +98,32 @@ for (idx=0; idx<nbpixels; idx++) {
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}
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return 0;
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}
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/* ---------------------------------------------------------------- */
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/*
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* B *= A may be faster than fimg_mul_3 ?
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*/
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int fimg_mul_2(FloatImg *a, FloatImg *b)
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{
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int idx, nbpixels;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %p )\n", __func__, a, b);
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#endif
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if (3 != a->type || 3 != b->type) {
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fprintf(stderr, "%s : got a bad type fimg\n", __func__);
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return -8;
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}
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nbpixels = a->width * a->height;
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for (idx=0; idx<nbpixels; idx++) {
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b->R[idx] *= a->R[idx];
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b->G[idx] *= a->G[idx];
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b->B[idx] *= a->B[idx];
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}
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}
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/* ---------------------------------------------------------------- */
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/*
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