| 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; |