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|
svntiny: svntiny_gradient.c: only print debugging if GRADIENT_DEBUG is enabled
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
src/svgtiny_gradient.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
Index: libsvgtiny/src/svgtiny_gradient.c
===================================================================
--- libsvgtiny.orig/src/svgtiny_gradient.c
+++ libsvgtiny/src/svgtiny_gradient.c
@@ -30,8 +30,9 @@ void svgtiny_find_gradient(const char *i
{
xmlNode *gradient;
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "svgtiny_find_gradient: id \"%s\"\n", id);
-
+#endif
state->linear_gradient_stop_count = 0;
state->gradient_x1 = "0%";
state->gradient_y1 = "0%";
@@ -47,13 +48,17 @@ void svgtiny_find_gradient(const char *i
gradient = svgtiny_find_element_by_id(
(xmlNode *) state->document, id);
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "gradient %p\n", (void *) gradient);
+#endif
if (!gradient) {
fprintf(stderr, "gradient \"%s\" not found\n", id);
return;
}
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "gradient name \"%s\"\n", gradient->name);
+#endif
if (strcmp((const char *) gradient->name, "linearGradient") == 0) {
svgtiny_parse_linear_gradient(gradient, state);
}
@@ -98,8 +103,10 @@ svgtiny_code svgtiny_parse_linear_gradie
return svgtiny_OUT_OF_MEMORY;
svgtiny_parse_transform(s, &a, &b, &c, &d, &e, &f);
free(s);
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "transform %g %g %g %g %g %g\n",
a, b, c, d, e, f);
+#endif
state->gradient_transform.a = a;
state->gradient_transform.b = b;
state->gradient_transform.c = c;
@@ -143,7 +150,9 @@ svgtiny_code svgtiny_parse_linear_gradie
}
if (offset != -1 && color != svgtiny_TRANSPARENT) {
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "stop %g %x\n", offset, color);
+#endif
state->gradient_stop[i].offset = offset;
state->gradient_stop[i].color = color;
i++;
@@ -220,9 +229,11 @@ svgtiny_code svgtiny_add_path_linear_gra
#endif
/* compute gradient vector */
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "x1 %s, y1 %s, x2 %s, y2 %s\n",
state->gradient_x1, state->gradient_y1,
state->gradient_x2, state->gradient_y2);
+#endif
if (!state->gradient_user_space_on_use) {
gradient_x0 = object_x0 +
svgtiny_parse_length(state->gradient_x1,
@@ -297,9 +308,11 @@ svgtiny_code svgtiny_add_path_linear_gra
/* invert gradient transform for applying to vertices */
svgtiny_invert_matrix(&state->gradient_transform.a, trans);
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "inverse transform %g %g %g %g %g %g\n",
trans[0], trans[1], trans[2], trans[3],
trans[4], trans[5]);
+#endif
/* compute points on the path for triangle vertices */
/* r, r0, r1 are distance along gradient vector */
@@ -372,8 +385,10 @@ svgtiny_code svgtiny_add_path_linear_gra
steps = ceilf(fabsf(r1 - r0) / 0.05);
if (steps == 0)
steps = 1;
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "r0 %g, r1 %g, steps %i\n",
r0, r1, steps);
+#endif
/* loop through intermediate points */
for (z = 1; z != steps; z++) {
@@ -398,7 +413,9 @@ svgtiny_code svgtiny_add_path_linear_gra
r = ((x_trans - gradient_x0) * gradient_dx +
(y_trans - gradient_y0) * gradient_dy) /
gradient_norm_squared;
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "(%g %g [%g]) ", x, y, r);
+#endif
point = svgtiny_list_push(pts);
if (!point) {
svgtiny_list_free(pts);
@@ -412,14 +429,18 @@ svgtiny_code svgtiny_add_path_linear_gra
min_pt = svgtiny_list_size(pts) - 1;
}
}
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "\n");
+#endif
/* next segment start point is this segment end point */
x0 = x1;
y0 = y1;
}
+#ifdef GRADIENT_DEBUG
fprintf(stderr, "pts size %i, min_pt %i, min_r %.3f\n",
svgtiny_list_size(pts), min_pt, min_r);
+#endif
/* render triangles */
stop_count = state->linear_gradient_stop_count;
|
