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Sine wave works; SDL conversion

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This commit is contained in:
John Alanbrook
2022-07-05 22:24:58 +00:00
parent f979ef6a14
commit e9f83baa37
3 changed files with 43 additions and 100 deletions
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8
source/engine/dsp.c
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@@ -34,9 +34,11 @@ struct wav gen_sine(float amp, float freq, int sr, int ch)
short *data = (short*)new.data;
for (int i = 0; i < new.frames; i++) {
short val = amp * sin(2*PI*((float)i / new.frames));
short val = samp * sin(2*PI*((float)i / new.frames));
for (int j = 0; j < new.ch; j++) {
data[i+j] = val;
data[i*new.ch+j] = val;
printf("Element %i gets val %i.\n", i*new.frames+j, val);
}
}
@@ -59,7 +61,7 @@ struct wav gen_square(float amp, float freq, int sr, int ch)
for (int i = 0; i < new.frames; i++) {
short val = -2 * floor(2 * i / new.frames) + 1;
for (int j = 0; j < new.ch; j++) {
data[i+j] = val;
data[i*new.frames+j] = val;
}
}