31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
#include <math.h>
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#include <stdint.h>
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#include <stdio.h>
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int main() {
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printf("#ifndef ZRE_TRIG_TABLES_H\n#define ZRE_TRIG_TABLES_H\n#include <stdint.h>\n\n");
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// Generate SINE table (256 entries, Q16.16 format)
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printf("const int32_t sin_table[256] = {\n");
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for (int i = 0; i < 256; i++) {
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double angle = i * 2 * M_PI / 256.0; // 0-360° in radians
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double value = sin(angle) * 65536.0; // Scale to Q16.16
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int32_t fixed = (int32_t)(value + 0.5); // Round to nearest
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printf(" %d,", fixed);
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if (i % 8 == 7) printf("\n");
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}
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printf("};\n\n");
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// Generate COSINE table (256 entries, Q16.16 format)
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printf("const int32_t cos_table[256] = {\n");
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for (int i = 0; i < 256; i++) {
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double angle = i * 2 * M_PI / 256.0; // 0-360° in radians
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double value = cos(angle) * 65536.0; // Scale to Q16.16
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int32_t fixed = (int32_t)(value + 0.5); // Round to nearest
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printf(" %d,", fixed);
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if (i % 8 == 7) printf("\n");
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}
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printf("};\n");
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printf("#endif\n");
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return 0;
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} |