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#include <stdint.h> // size_t
#include "util.h"
#include "km.h"
void
km_set_draw(
const km_set_t * const set,
uint8_t * const rgb,
const size_t width,
const size_t height,
const uint32_t color
) {
for (size_t i = 0; i < set->num_rows; i++) {
const float *row = km_set_get_row(set, i);
const size_t x = (width - 1) * row[0],
y = (height - 1) * row[1],
ofs = 3 * (width * y + x);
if (x >= width || y >= height) {
die(
"km_set_draw(): point out of bounds (row: %zu, point: [%0.2f, %0.2f], pixel: %zux%zu, bounds: %zux%zu)",
i, row[0], row[1], x, y, width, height
);
}
rgb[ofs + 0] = (color & 0xff0000) >> 16;
rgb[ofs + 1] = (color & 0x00ff00) >> 8;
rgb[ofs + 2] = (color & 0x0000ff);
}
}
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