Differential D4776 Diff 15043 source/blender/editors/space_graph/graph_draw.c

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source/blender/editors/space_graph/graph_draw.c

Show First 20 Lines • Show All 487 Lines • ▼ Show 20 Lines	static void draw_fcurve_samples(SpaceGraph sipo, ARegion ar, FCurve *fcu)
}		}
}		}

/* Curve ---------------- */		/* Curve ---------------- */

/* Helper func - just draw the F-Curve by sampling the visible region		/* Helper func - just draw the F-Curve by sampling the visible region
* (for drawing curves with modifiers). */		* (for drawing curves with modifiers). */
static void draw_fcurve_curve(		static void draw_fcurve_curve(
bAnimContext ac, ID id, FCurve fcu_, View2D v2d, View2DGrid *grid, unsigned int pos)		bAnimContext ac, ID id, FCurve fcu_, View2D v2d, unsigned int pos)
{		{
SpaceGraph sipo = (SpaceGraph )ac->sl;		SpaceGraph sipo = (SpaceGraph )ac->sl;
float samplefreq;		float samplefreq;
float stime, etime;		float stime, etime;
float unitFac, offset;		float unitFac, offset;
float dx, dy;
short mapping_flag = ANIM_get_normalization_flags(ac);		short mapping_flag = ANIM_get_normalization_flags(ac);
int i, n;		int i, n;

/* when opening a blend file on a different sized screen or while dragging the toolbar this can		/* when opening a blend file on a different sized screen or while dragging the toolbar this can
* happen best just bail out in this case. */		* happen best just bail out in this case. */
UI_view2d_grid_size(grid, &dx, &dy);		if (UI_view2d_scale_get_x(v2d) <= 0.0f) {
if (dx <= 0.0f) {
return;		return;
}		}

/* disable any drivers */		/* disable any drivers */
FCurve fcurve_for_draw = *fcu_;		FCurve fcurve_for_draw = *fcu_;
fcurve_for_draw.driver = NULL;		fcurve_for_draw.driver = NULL;

/* compute unit correction factor */		/* compute unit correction factor */
unitFac = ANIM_unit_mapping_get_factor(ac->scene, id, &fcurve_for_draw, mapping_flag, &offset);		unitFac = ANIM_unit_mapping_get_factor(ac->scene, id, &fcurve_for_draw, mapping_flag, &offset);

/* Note about sampling frequency:		/* Note about sampling frequency:
* Ideally, this is chosen such that we have 1-2 pixels = 1 segment		* Ideally, this is chosen such that we have 1-2 pixels = 1 segment
* which means that our curves can be as smooth as possible. However,		* which means that our curves can be as smooth as possible. However,
* this does mean that curves may not be fully accurate (i.e. if they have		* this does mean that curves may not be fully accurate (i.e. if they have
* sudden spikes which happen at the sampling point, we may have problems).		* sudden spikes which happen at the sampling point, we may have problems).
* Also, this may introduce lower performance on less densely detailed curves,		* Also, this may introduce lower performance on less densely detailed curves,
* though it is impossible to predict this from the modifiers!		* though it is impossible to predict this from the modifiers!
*		*
* If the automatically determined sampling frequency is likely to cause an infinite		* If the automatically determined sampling frequency is likely to cause an infinite
* loop (i.e. too close to 0), then clamp it to a determined "safe" value. The value		* loop (i.e. too close to 0), then clamp it to a determined "safe" value. The value
* chosen here is just the coarsest value which still looks reasonable...		* chosen here is just the coarsest value which still looks reasonable...
*/		*/
/* grid->dx represents the number of 'frames' between gridlines,
* but we divide by U.v2d_min_gridsize to get pixels-steps */
/* TODO: perhaps we should have 1.0 frames		/* TODO: perhaps we should have 1.0 frames
* as upper limit so that curves don't get too distorted? */		* as upper limit so that curves don't get too distorted? */
samplefreq = dx / (U.v2d_min_gridsize * U.pixelsize);		float pixels_per_sample = 1.5f;
		samplefreq = pixels_per_sample / UI_view2d_scale_get_x(v2d);

if (sipo->flag & SIPO_BEAUTYDRAW_OFF) {		if (sipo->flag & SIPO_BEAUTYDRAW_OFF) {
/* Low Precision = coarse lower-bound clamping		/* Low Precision = coarse lower-bound clamping
*		*
* Although the "Beauty Draw" flag was originally for AA'd		* Although the "Beauty Draw" flag was originally for AA'd
* line drawing, the sampling rate here has a much greater		* line drawing, the sampling rate here has a much greater
* impact on performance (e.g. for T40372)!		* impact on performance (e.g. for T40372)!
*		*
▲ Show 20 Lines • Show All 493 Lines • ▼ Show 20 Lines	if ((sipo->flag & SIPO_BEAUTYDRAW_OFF) == 0) {
GPU_line_smooth(false);		GPU_line_smooth(false);
}		}
GPU_blend(false);		GPU_blend(false);
}		}

/* This is called twice from space_graph.c -> graph_main_region_draw()		/* This is called twice from space_graph.c -> graph_main_region_draw()
* Unselected then selected F-Curves are drawn so that they do not occlude each other.		* Unselected then selected F-Curves are drawn so that they do not occlude each other.
*/		*/
void graph_draw_curves(		void graph_draw_curves(bAnimContext ac, SpaceGraph sipo, ARegion *ar, short sel)
bAnimContext ac, SpaceGraph sipo, ARegion ar, View2DGrid grid, short sel)
{		{
ListBase anim_data = {NULL, NULL};		ListBase anim_data = {NULL, NULL};
bAnimListElem *ale;		bAnimListElem *ale;
int filter;		int filter;

/* build list of curves to draw */		/* build list of curves to draw */
filter = (ANIMFILTER_DATA_VISIBLE \| ANIMFILTER_CURVE_VISIBLE);		filter = (ANIMFILTER_DATA_VISIBLE \| ANIMFILTER_CURVE_VISIBLE);
filter \|= ((sel) ? (ANIMFILTER_SEL) : (ANIMFILTER_UNSEL));		filter \|= ((sel) ? (ANIMFILTER_SEL) : (ANIMFILTER_UNSEL));
▲ Show 20 Lines • Show All 70 Lines • ▼ Show 20 Lines	if (((fcu->modifiers.first) \|\| (fcu->flag & FCURVE_INT_VALUES)) \|\|
immUniformColor3fvAlpha(fcu->color, fcurve_display_alpha(fcu));		immUniformColor3fvAlpha(fcu->color, fcurve_display_alpha(fcu));
}		}

/* draw F-Curve */		/* draw F-Curve */
if ((fcu->modifiers.first) \|\| (fcu->flag & FCURVE_INT_VALUES)) {		if ((fcu->modifiers.first) \|\| (fcu->flag & FCURVE_INT_VALUES)) {
/* draw a curve affected by modifiers or only allowed to have integer values		/* draw a curve affected by modifiers or only allowed to have integer values
* by sampling it at various small-intervals over the visible region		* by sampling it at various small-intervals over the visible region
*/		*/
draw_fcurve_curve(ac, ale->id, fcu, &ar->v2d, grid, shdr_pos);		draw_fcurve_curve(ac, ale->id, fcu, &ar->v2d, shdr_pos);
}		}
else if (((fcu->bezt) \|\| (fcu->fpt)) && (fcu->totvert)) {		else if (((fcu->bezt) \|\| (fcu->fpt)) && (fcu->totvert)) {
/* just draw curve based on defined data (i.e. no modifiers) */		/* just draw curve based on defined data (i.e. no modifiers) */
if (fcu->bezt) {		if (fcu->bezt) {
if (fcurve_can_use_simple_bezt_drawing(fcu)) {		if (fcurve_can_use_simple_bezt_drawing(fcu)) {
draw_fcurve_curve_bezts(ac, ale->id, fcu, &ar->v2d, shdr_pos);		draw_fcurve_curve_bezts(ac, ale->id, fcu, &ar->v2d, shdr_pos);
}		}
else {		else {
draw_fcurve_curve(ac, ale->id, fcu, &ar->v2d, grid, shdr_pos);		draw_fcurve_curve(ac, ale->id, fcu, &ar->v2d, shdr_pos);
}		}
}		}
else if (fcu->fpt) {		else if (fcu->fpt) {
draw_fcurve_curve_samples(ac, ale->id, fcu, &ar->v2d, shdr_pos);		draw_fcurve_curve_samples(ac, ale->id, fcu, &ar->v2d, shdr_pos);
}		}
}		}

immUnbindProgram();		immUnbindProgram();
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