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-rw-r--r--libass/ass_render.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/libass/ass_render.c b/libass/ass_render.c
index ddb3df702a..1bd7feb981 100644
--- a/libass/ass_render.c
+++ b/libass/ass_render.c
@@ -136,6 +136,7 @@ typedef struct render_context_s {
} evt_type;
int pos_x, pos_y; // position
int org_x, org_y; // origin
+ char have_origin; // origin is explicitly defined; if 0, get_base_point() is used
double scale_x, scale_y;
int hspacing; // distance between letters, in pixels
double border; // outline width
@@ -872,6 +873,7 @@ static char* parse_tag(char* p, double pwr) {
// render_context.evt_type = EVENT_POSITIONED;
render_context.org_x = v1;
render_context.org_y = v2;
+ render_context.have_origin = 1;
} else if (mystrcmp(&p, "t")) {
double v[3];
int v1, v2;
@@ -1172,6 +1174,7 @@ static void init_render_context(ass_event_t* event)
render_context.pos_y = 0;
render_context.org_x = 0;
render_context.org_y = 0;
+ render_context.have_origin = 0;
render_context.clip_x0 = 0;
render_context.clip_y0 = 0;
render_context.clip_x1 = frame_context.track->PlayResX;
@@ -1778,7 +1781,7 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
FT_Vector center;
FT_Matrix matrix_rotate;
- if (((render_context.org_x != 0) || (render_context.org_y != 0)) && (render_context.evt_type == EVENT_POSITIONED)) {
+ if (render_context.have_origin) {
center.x = render_context.org_x;
center.y = render_context.org_y;
} else {