spu-adsr.c File Reference

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Macros
#define	ATTACK(step, shift, exp)
#define	DECAY(shift)
#define	SUSTAIN(step, shift, level, direction, exp)
#define	RELEASE(shift, exp)
#define	ADSR_DRAIN_MAX_TICKS   16
#define	ADSR_ONSET_MAX_SPINS   2000000
#define	ENVX_INCREMENT   8
#define	ENVX_MARGIN(step)   ((step) < ENVX_INCREMENT ? ENVX_INCREMENT : (step))
#define	ASSERT_ENVX_NEAR(nominal, step, got)

Macro Definition Documentation

ADSR_DRAIN_MAX_TICKS

#define ADSR_DRAIN_MAX_TICKS   16

ADSR_ONSET_MAX_SPINS

#define ADSR_ONSET_MAX_SPINS   2000000

ASSERT_ENVX_NEAR

#define ASSERT_ENVX_NEAR	(		nominal,
			step,
			got
	)

Value:

    cester_assert_true((got) >= (uint16_t)((nominal) - ENVX_MARGIN(step)) && \
                       (got) <= (uint16_t)((nominal) + ENVX_MARGIN(step)))

ATTACK

#define ATTACK	(		step,
			shift,
			exp
	)

Value:

    (\
    (((step) & 3) << 8) | \
    (((shift) & 31) << 10) | \
    (!!(exp) << 15))

DECAY

#define DECAY

(

shift

)

Value:

    (\
    (((shift) & 15) << 4))

ENVX_INCREMENT

#define ENVX_INCREMENT   8

ENVX_MARGIN

#define ENVX_MARGIN

(

step

)

((step) < ENVX_INCREMENT ? ENVX_INCREMENT : (step))

RELEASE

#define RELEASE	(		shift,
			exp
	)

Value:

    (\
    (((shift) & 31) << 16) | \
    (!!(exp) << 21))

SUSTAIN

#define SUSTAIN	(		step,
			shift,
			level,
			direction,
			exp
	)

Value:

    (\
    (((step) & 3) << 22) | \
    (((shift) & 31) << 24) | \
    (((level) & 15) << 0) | \
    (!!(direction) << 30) | \
    (!!(exp) << 31))