80486DX2-66/C-bytebeat-render
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template.c: extract return type setting

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Intel A80486DX2-66 2024-01-09 17:35:27 +03:00
parent 2e701099d0
commit 2f346e7f5f
Signed by: 80486DX2-66
GPG Key ID: 83631EF27054609B
2 changed files with 23 additions and 3 deletions
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3
bytebeat_compiler.py
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@ -87,6 +87,8 @@ if __name__ == "__main__":
help="bit depth")
parser.add_argument("-s", "--signed", default=False, action="store_true",
help="is signed?")
parser.add_argument("-f", "--floating-point", default=False,
action="store_true", help="use floating point as the return type")
parser.add_argument("-c", "--channels", default=1, type=int,
help="amount of channels")
parser.add_argument("-t", "--seconds", default=None, type=int,
@ -156,6 +158,7 @@ if __name__ == "__main__":
"final_sample_rate_code": final_sample_rate_code,
"bit_depth": args.bit_depth,
"is_signed": "1" if args.signed else "0",
"fp_return_type": "1" if args.floating_point else "0",
"channels": args.channels,
"length": samples,
"silent_mode": "true" if args.silent else "false",

23
src/template.c
View File

@ -48,11 +48,19 @@ const char* ANSI_CLEAR = __ANSI_CLEAR_STRING;
#define VERBOSE_MODE `verbose_mode`
// function prototypes
#if FP_RETURN_TYPE
long double
#else
SAMPLE_TYPE
#endif
bytebeat(long double w);
// function implementations
#if FP_RETURN_TYPE
long double
#else
SAMPLE_TYPE
#endif
bytebeat(long double w)
{
`final_sample_rate_code`
@ -122,7 +130,12 @@ main(void)
}
// * bytebeat generating loop
const uintmax_t product_minus_1 = PRODUCT - 1;
const uintmax_t product_minus_1 = PRODUCT - 1,
bit_depth_limiter = BIT_DEPTH_LIMITER
#if FP_RETURN_TYPE
+ 1
#endif
;
for (size_t w = 0; w < PRODUCT; w++) {
// 1. generate audio data
@ -133,8 +146,12 @@ main(void)
bytebeat_res = signed_to_unsigned(bytebeat_res);
// 3. convert audio data to sample
SAMPLE_TYPE sample_res = (SAMPLE_TYPE) bytebeat_res &
BIT_DEPTH_LIMITER;
SAMPLE_TYPE sample_res = (SAMPLE_TYPE)
#if FP_RETURN_TYPE
fmodl(bytebeat_res, bit_depth_limiter);
#else
((uintmax_t) bytebeat_res & bit_depth_limiter);
#endif
// 4. if bit depth is less than 8, stretch it
#if BIT_DEPTH < 8