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-rw-r--r--src/cairo-path-stroke.c108
1 files changed, 36 insertions, 72 deletions
diff --git a/src/cairo-path-stroke.c b/src/cairo-path-stroke.c
index 8d3a1a93..2fba174d 100644
--- a/src/cairo-path-stroke.c
+++ b/src/cairo-path-stroke.c
@@ -72,51 +72,6 @@ typedef struct cairo_stroker {
cairo_box_t bounds;
} cairo_stroker_t;
-/* private functions */
-static cairo_status_t
-_cairo_stroker_init (cairo_stroker_t *stroker,
- cairo_stroke_style_t *stroke_style,
- cairo_matrix_t *ctm,
- cairo_matrix_t *ctm_inverse,
- double tolerance,
- cairo_traps_t *traps);
-
-static void
-_cairo_stroker_fini (cairo_stroker_t *stroker);
-
-static cairo_status_t
-_cairo_stroker_move_to (void *closure, cairo_point_t *point);
-
-static cairo_status_t
-_cairo_stroker_line_to (void *closure, cairo_point_t *point);
-
-static cairo_status_t
-_cairo_stroker_line_to_dashed (void *closure, cairo_point_t *point);
-
-static cairo_status_t
-_cairo_stroker_curve_to (void *closure,
- cairo_point_t *b,
- cairo_point_t *c,
- cairo_point_t *d);
-
-static cairo_status_t
-_cairo_stroker_curve_to_dashed (void *closure,
- cairo_point_t *b,
- cairo_point_t *c,
- cairo_point_t *d);
-
-static cairo_status_t
-_cairo_stroker_close_path (void *closure);
-
-static void
-_translate_point (cairo_point_t *point, cairo_point_t *offset);
-
-static int
-_cairo_stroker_face_clockwise (cairo_stroke_face_t *in, cairo_stroke_face_t *out);
-
-static cairo_status_t
-_cairo_stroker_join (cairo_stroker_t *stroker, cairo_stroke_face_t *in, cairo_stroke_face_t *out);
-
static void
_cairo_stroker_start_dash (cairo_stroker_t *stroker)
{
@@ -632,7 +587,7 @@ _compute_normalized_device_slope (double *dx, double *dy, cairo_matrix_t *ctm_in
}
static void
-_compute_face (cairo_point_t *point, cairo_slope_t *dev_slope,
+_compute_face (const cairo_point_t *point, cairo_slope_t *dev_slope,
double slope_dx, double slope_dy,
cairo_stroker_t *stroker, cairo_stroke_face_t *face);
@@ -681,7 +636,7 @@ _cairo_stroker_add_caps (cairo_stroker_t *stroker)
}
static void
-_compute_face (cairo_point_t *point, cairo_slope_t *dev_slope,
+_compute_face (const cairo_point_t *point, cairo_slope_t *dev_slope,
double slope_dx, double slope_dy,
cairo_stroker_t *stroker, cairo_stroke_face_t *face)
{
@@ -729,9 +684,13 @@ _compute_face (cairo_point_t *point, cairo_slope_t *dev_slope,
}
static cairo_status_t
-_cairo_stroker_add_sub_edge (cairo_stroker_t *stroker, cairo_point_t *p1, cairo_point_t *p2,
- cairo_slope_t *dev_slope, double slope_dx, double slope_dy,
- cairo_stroke_face_t *start, cairo_stroke_face_t *end)
+_cairo_stroker_add_sub_edge (cairo_stroker_t *stroker,
+ const cairo_point_t *p1,
+ const cairo_point_t *p2,
+ cairo_slope_t *dev_slope,
+ double slope_dx, double slope_dy,
+ cairo_stroke_face_t *start,
+ cairo_stroke_face_t *end)
{
cairo_point_t rectangle[4];
@@ -754,7 +713,8 @@ _cairo_stroker_add_sub_edge (cairo_stroker_t *stroker, cairo_point_t *p1, cairo_
}
static cairo_status_t
-_cairo_stroker_move_to (void *closure, cairo_point_t *point)
+_cairo_stroker_move_to (void *closure,
+ const cairo_point_t *point)
{
cairo_status_t status;
cairo_stroker_t *stroker = closure;
@@ -775,7 +735,8 @@ _cairo_stroker_move_to (void *closure, cairo_point_t *point)
}
static cairo_status_t
-_cairo_stroker_move_to_dashed (void *closure, cairo_point_t *point)
+_cairo_stroker_move_to_dashed (void *closure,
+ const cairo_point_t *point)
{
/* reset the dash pattern for new sub paths */
cairo_stroker_t *stroker = closure;
@@ -785,13 +746,13 @@ _cairo_stroker_move_to_dashed (void *closure, cairo_point_t *point)
}
static cairo_status_t
-_cairo_stroker_line_to (void *closure, cairo_point_t *point)
+_cairo_stroker_line_to (void *closure,
+ const cairo_point_t *p2)
{
cairo_status_t status;
cairo_stroker_t *stroker = closure;
cairo_stroke_face_t start, end;
cairo_point_t *p1 = &stroker->current_point;
- cairo_point_t *p2 = point;
cairo_slope_t dev_slope;
double slope_dx, slope_dy;
@@ -805,7 +766,11 @@ _cairo_stroker_line_to (void *closure, cairo_point_t *point)
slope_dy = _cairo_fixed_to_double (p2->y - p1->y);
_compute_normalized_device_slope (&slope_dx, &slope_dy, stroker->ctm_inverse, NULL);
- status = _cairo_stroker_add_sub_edge (stroker, p1, p2, &dev_slope, slope_dx, slope_dy, &start, &end);
+ status = _cairo_stroker_add_sub_edge (stroker,
+ p1, p2,
+ &dev_slope,
+ slope_dx, slope_dy,
+ &start, &end);
if (unlikely (status))
return status;
@@ -822,7 +787,7 @@ _cairo_stroker_line_to (void *closure, cairo_point_t *point)
stroker->current_face = end;
stroker->has_current_face = TRUE;
- stroker->current_point = *point;
+ stroker->current_point = *p2;
return CAIRO_STATUS_SUCCESS;
}
@@ -831,7 +796,8 @@ _cairo_stroker_line_to (void *closure, cairo_point_t *point)
* Dashed lines. Cap each dash end, join around turns when on
*/
static cairo_status_t
-_cairo_stroker_line_to_dashed (void *closure, cairo_point_t *point)
+_cairo_stroker_line_to_dashed (void *closure,
+ const cairo_point_t *p2)
{
cairo_stroker_t *stroker = closure;
double mag, remain, step_length = 0;
@@ -839,7 +805,6 @@ _cairo_stroker_line_to_dashed (void *closure, cairo_point_t *point)
double dx2, dy2;
cairo_stroke_face_t sub_start, sub_end;
cairo_point_t *p1 = &stroker->current_point;
- cairo_point_t *p2 = point;
cairo_slope_t dev_slope;
cairo_line_t segment;
cairo_bool_t fully_in_bounds;
@@ -948,7 +913,7 @@ _cairo_stroker_line_to_dashed (void *closure, cairo_point_t *point)
* path stroking.
* On the other hand, Acroread 7 also produces the degenerate caps.
*/
- _compute_face (point, &dev_slope,
+ _compute_face (p2, &dev_slope,
slope_dx, slope_dy,
stroker,
&stroker->current_face);
@@ -961,16 +926,16 @@ _cairo_stroker_line_to_dashed (void *closure, cairo_point_t *point)
stroker->has_current_face = TRUE;
}
- stroker->current_point = *point;
+ stroker->current_point = *p2;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_stroker_curve_to (void *closure,
- cairo_point_t *b,
- cairo_point_t *c,
- cairo_point_t *d)
+ const cairo_point_t *b,
+ const cairo_point_t *c,
+ const cairo_point_t *d)
{
cairo_stroker_t *stroker = closure;
cairo_pen_stroke_spline_t spline_pen;
@@ -1072,9 +1037,9 @@ _cairo_stroker_curve_to (void *closure,
*/
static cairo_status_t
_cairo_stroker_curve_to_dashed (void *closure,
- cairo_point_t *b,
- cairo_point_t *c,
- cairo_point_t *d)
+ const cairo_point_t *b,
+ const cairo_point_t *c,
+ const cairo_point_t *d)
{
cairo_stroker_t *stroker = closure;
cairo_spline_t spline;
@@ -1242,8 +1207,8 @@ _cairo_rectilinear_stroker_fini (cairo_rectilinear_stroker_t *stroker)
static cairo_status_t
_cairo_rectilinear_stroker_add_segment (cairo_rectilinear_stroker_t *stroker,
- cairo_point_t *p1,
- cairo_point_t *p2)
+ const cairo_point_t *p1,
+ const cairo_point_t *p2)
{
if (stroker->num_segments == stroker->segments_size) {
@@ -1395,7 +1360,7 @@ _cairo_rectilinear_stroker_emit_segments (cairo_rectilinear_stroker_t *stroker)
static cairo_status_t
_cairo_rectilinear_stroker_move_to (void *closure,
- cairo_point_t *point)
+ const cairo_point_t *point)
{
cairo_rectilinear_stroker_t *stroker = closure;
cairo_status_t status;
@@ -1412,11 +1377,10 @@ _cairo_rectilinear_stroker_move_to (void *closure,
static cairo_status_t
_cairo_rectilinear_stroker_line_to (void *closure,
- cairo_point_t *point)
+ const cairo_point_t *b)
{
cairo_rectilinear_stroker_t *stroker = closure;
cairo_point_t *a = &stroker->current_point;
- cairo_point_t *b = point;
cairo_status_t status;
/* We only support horizontal or vertical elements. */
@@ -1429,7 +1393,7 @@ _cairo_rectilinear_stroker_line_to (void *closure,
status = _cairo_rectilinear_stroker_add_segment (stroker, a, b);
- stroker->current_point = *point;
+ stroker->current_point = *b;
stroker->open_sub_path = TRUE;
return status;
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-28 02:57:13 +0000