63 lines
1.2 KiB
Rust
63 lines
1.2 KiB
Rust
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/*
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// block of defines matching what RS will insert at runtime.
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struct Params_s{
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int inHeight;
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int inWidth;
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int outHeight;
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int outWidth;
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float threshold;
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};
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struct Params_s * Params;
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struct InPixel_s{
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char a;
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char b;
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char g;
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char r;
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};
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struct InPixel_s * InPixel;
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struct OutPixel_s{
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char a;
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char b;
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char g;
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char r;
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};
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struct OutPixel_s * OutPixel;
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*/
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struct color_s {
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char b;
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char g;
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char r;
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char a;
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};
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void main() {
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int t = uptimeMillis();
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struct color_s *in = (struct color_s *) InPixel;
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struct color_s *out = (struct color_s *) OutPixel;
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int count = Params->inWidth * Params->inHeight;
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int i;
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float threshold = (Params->threshold * 255.f);
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for (i = 0; i < count; i++) {
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float luminance = 0.2125f * in->r +
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0.7154f * in->g +
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0.0721f * in->b;
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if (luminance > threshold) {
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*out = *in;
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} else {
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*((int *)out) = *((int *)in) & 0xff000000;
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}
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in++;
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out++;
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}
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t= uptimeMillis() - t;
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debugI32("Filter time", t);
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sendToClient(&count, 1, 4, 0);
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}
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