36 lines
921 B
C++
36 lines
921 B
C++
#include "Lightmap.hpp"
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#include "util/data_io.hpp"
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#include <assert.h>
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void Lightmap::set(const Lightmap* lightmap) {
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set(lightmap->map);
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}
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void Lightmap::set(const light_t* map) {
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for (size_t i = 0; i < CHUNK_VOL; i++) {
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this->map[i] = map[i];
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}
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}
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static_assert(sizeof(light_t) == 2, "replace dataio calls to new light_t");
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std::unique_ptr<ubyte[]> Lightmap::encode() const {
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auto buffer = std::make_unique<ubyte[]>(LIGHTMAP_DATA_LEN);
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for (uint i = 0; i < CHUNK_VOL; i+=2) {
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buffer[i/2] = ((map[i] >> 12) & 0xF) | ((map[i+1] >> 8) & 0xF0);
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}
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return buffer;
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}
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std::unique_ptr<light_t[]> Lightmap::decode(const ubyte* buffer) {
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auto lights = std::make_unique<light_t[]>(CHUNK_VOL);
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for (uint i = 0; i < CHUNK_VOL; i+=2) {
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ubyte b = buffer[i/2];
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lights[i] = ((b & 0xF) << 12);
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lights[i+1] = ((b & 0xF0) << 8);
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}
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return lights;
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}
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