diff options
author | Bastien Montagne <montagne29@wanadoo.fr> | 2017-04-10 17:28:40 +0300 |
---|---|---|
committer | Bastien Montagne <montagne29@wanadoo.fr> | 2017-04-10 17:30:05 +0300 |
commit | fd203a09330ce88725e8c5c8d9b1f9ce7b2f3c10 (patch) | |
tree | 6cde85750790424627ac47e656f2e9acb6287461 | |
parent | a40f15d04f534d929509388592ee6288229e9e3c (diff) |
GPencil 2D drawing code: minor optimization.
Do not recompute both points's 2D coordinates for each segments, we can
copy over from previous one... Does not gives any measurable speedup off
hands, though.
-rw-r--r-- | source/blender/editors/gpencil/drawgpencil.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c index a542bf8fa11..f091609da49 100644 --- a/source/blender/editors/gpencil/drawgpencil.c +++ b/source/blender/editors/gpencil/drawgpencil.c @@ -701,24 +701,25 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness */ { bGPDspoint *pt1, *pt2; - float pm[2]; + float s0[2], s1[2]; /* segment 'center' points */ + float pm[2]; /* normal from previous segment. */ int i; float fpt[3]; glShadeModel(GL_FLAT); glBegin(GL_QUADS); - + + /* get x and y coordinates from first point */ + mul_v3_m4v3(fpt, diff_mat, &points->x); + gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s0); + for (i = 0, pt1 = points, pt2 = points + 1; i < (totpoints - 1); i++, pt1++, pt2++) { - float s0[2], s1[2]; /* segment 'center' points */ float t0[2], t1[2]; /* tessellated coordinates */ float m1[2], m2[2]; /* gradient and normal */ float mt[2], sc[2]; /* gradient for thickness, point for end-cap */ float pthick; /* thickness at segment point */ - /* get x and y coordinates from points */ - mul_v3_m4v3(fpt, diff_mat, &pt1->x); - gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s0); - + /* get x and y coordinates from point2 (point1 has already been computed in previous iteration). */ mul_v3_m4v3(fpt, diff_mat, &pt2->x); gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s1); @@ -846,6 +847,8 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness glVertex2fv(t0); } + /* store computed point2 coordinates as point1 ones of next segment. */ + copy_v2_v2(s0, s1); /* store stroke's 'natural' normal for next stroke to use */ copy_v2_v2(pm, m2); } |