Differential D10026 Diff 32943 source/blender/sequencer/intern/effects.c

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source/blender/sequencer/intern/effects.c

Show First 20 Lines • Show All 3,144 Lines • ▼ Show 20 Lines	else {
}		}
else {		else {
*ymin = 0.0;		*ymin = 0.0;
*ymax = seq->len;		*ymax = seq->len;
}		}
}		}
}		}

		/* Generator strips with zero inputs have their length set to 1 pernamently. In some cases it is
		* useful to use speed effect on these strips because they can be animated. This can be done by
		sergeyUnsubmitted Done Inline Actions Add explanation why this is needed (mostly copy-paste info from the patch description). Reading comment in the code is easier than to track down commit and read its description. sergey: Add explanation why this is needed (mostly copy-paste info from the patch description). Reading…
		* using their length as is on timeline as content length. See T82698. */
		int seq_effect_speed_get_strip_content_length(const Sequence *seq)
		{
		if (SEQ_effect_get_num_inputs(seq->type) == 0) {
		return seq->enddisp - seq->startdisp;
		}

		return seq->len;
		}

void seq_effect_speed_rebuild_map(Scene scene, Sequence seq, bool force)		void seq_effect_speed_rebuild_map(Scene scene, Sequence seq, bool force)
{		{
int timeline_frame;		int timeline_frame;
float fallback_fac = 1.0f;		float fallback_fac = 1.0f;
SpeedControlVars v = (SpeedControlVars )seq->effectdata;		SpeedControlVars v = (SpeedControlVars )seq->effectdata;
FCurve *fcu = NULL;		FCurve *fcu = NULL;
int flags = v->flags;		int flags = v->flags;

Show All 18 Lines	if (!v->frameMap \|\| v->length != seq->len) {

v->length = seq->len;		v->length = seq->len;

v->frameMap = MEM_callocN(sizeof(float) * v->length, "speedcontrol frameMap");		v->frameMap = MEM_callocN(sizeof(float) * v->length, "speedcontrol frameMap");
}		}

fallback_fac = 1.0;		fallback_fac = 1.0;

		const int target_strip_length = seq_effect_speed_get_strip_content_length(seq->seq1);
		sergeyUnsubmitted Done Inline Actions `const` sergey: `const`

if (seq->flag & SEQ_USE_EFFECT_DEFAULT_FADE) {		if (seq->flag & SEQ_USE_EFFECT_DEFAULT_FADE) {
if ((seq->seq1->enddisp != seq->seq1->start) && (seq->seq1->len != 0)) {		if ((seq->seq1->enddisp != seq->seq1->start) && (target_strip_length != 0)) {
fallback_fac = (float)seq->seq1->len / (float)(seq->seq1->enddisp - seq->seq1->start);		fallback_fac = (float)target_strip_length / (float)(seq->seq1->enddisp - seq->seq1->start);
flags = SEQ_SPEED_INTEGRATE;		flags = SEQ_SPEED_INTEGRATE;
fcu = NULL;		fcu = NULL;
}		}
}		}
else {		else {
/* if there is no fcurve, use value as simple multiplier */		/* if there is no fcurve, use value as simple multiplier */
if (!fcu) {		if (!fcu) {
fallback_fac = seq->speed_fader; /* same as speed_factor in rna*/		fallback_fac = seq->speed_fader; /* same as speed_factor in rna*/
Show All 13 Lines	for (timeline_frame = 1; timeline_frame < v->length; timeline_frame++) {
}		}
else {		else {
facf = fallback_fac;		facf = fallback_fac;
}		}
facf *= v->globalSpeed;		facf *= v->globalSpeed;

cursor += facf;		cursor += facf;

if (cursor >= seq->seq1->len) {		if (cursor >= target_strip_length) {
v->frameMap[timeline_frame] = seq->seq1->len - 1;		v->frameMap[timeline_frame] = target_strip_length - 1;
}		}
else {		else {
v->frameMap[timeline_frame] = cursor;		v->frameMap[timeline_frame] = cursor;
v->lastValidFrame = timeline_frame;		v->lastValidFrame = timeline_frame;
}		}
}		}
}		}
else {		else {
float facf;		float facf;

v->lastValidFrame = 0;		v->lastValidFrame = 0;
for (timeline_frame = 0; timeline_frame < v->length; timeline_frame++) {		for (timeline_frame = 0; timeline_frame < v->length; timeline_frame++) {

if (fcu) {		if (fcu) {
facf = evaluate_fcurve(fcu, seq->startdisp + timeline_frame);		facf = evaluate_fcurve(fcu, seq->startdisp + timeline_frame);
}		}
else {		else {
facf = fallback_fac;		facf = fallback_fac;
}		}

if (flags & SEQ_SPEED_COMPRESS_IPO_Y) {		if (flags & SEQ_SPEED_COMPRESS_IPO_Y) {
facf *= seq->seq1->len;		facf *= target_strip_length;
}		}
facf *= v->globalSpeed;		facf *= v->globalSpeed;

if (facf >= seq->seq1->len) {		if (facf >= target_strip_length) {
facf = seq->seq1->len - 1;		facf = target_strip_length - 1;
}		}
else {		else {
v->lastValidFrame = timeline_frame;		v->lastValidFrame = timeline_frame;
}		}
v->frameMap[timeline_frame] = facf;		v->frameMap[timeline_frame] = facf;
}		}
}		}
}		}
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