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Add cairo SVG export. However, cairo is buggy so it is on hold for the time being

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Mario Hüttel
2018-07-30 12:35:30 +02:00
parent 01367af99c
commit 6a01d67594
9 changed files with 149 additions and 51 deletions
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57
cairo-output/cairo-output.c
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@@ -16,7 +16,7 @@
* You should have received a copy of the GNU General Public License
* along with GDSII-Converter. If not, see <http://www.gnu.org/licenses/>.
*/
/**
/**
* @file cairo-output.c
* @brief Output renderer for Cairo PDF export
* @author Mario Hüttel <mario.huettel@gmx.net>
@@ -31,15 +31,16 @@
#include <stdlib.h>
#include <cairo.h>
#include <cairo-pdf.h>
#include <cairo-svg.h>
/**
* @brief The cairo_layer struct
* Each rendered layer is represented by this struct.
*/
struct cairo_layer {
cairo_t *cr; /**< @brief cairo context for layer*/
cairo_surface_t *rec; /**< @brief Recording surface to hold the layer */
struct layer_info *linfo; /**< @brief Reference to layer information */
cairo_t *cr; /**< @brief cairo context for layer*/
cairo_surface_t *rec; /**< @brief Recording surface to hold the layer */
struct layer_info *linfo; /**< @brief Reference to layer information */
};
/**
@@ -177,10 +178,10 @@ static void render_cell(struct gds_cell *cell, struct cairo_layer *layers, doubl
}
void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *pdf_file, double scale)
void cairo_render_cell_to_vector_file(struct gds_cell *cell, GList *layer_infos, char *pdf_file, char *svg_file, double scale)
{
cairo_surface_t *pdf_surface;
cairo_t *pdf_cr;
cairo_surface_t *pdf_surface, *svg_surface;
cairo_t *pdf_cr, *svg_cr;
struct layer_info *linfo;
struct cairo_layer *layers;
struct cairo_layer *lay;
@@ -189,6 +190,11 @@ void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *p
double rec_x0, rec_y0, rec_width, rec_height;
double xmin = INT32_MAX, xmax = INT32_MIN, ymin = INT32_MAX, ymax = INT32_MIN;
if (pdf_file == NULL && svg_file == NULL) {
/* No output specified */
return;
}
layers = (struct cairo_layer *)calloc(MAX_LAYERS, sizeof(struct cairo_layer));
/* Clear layers */
@@ -246,8 +252,15 @@ void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *p
printf("Bounding box: (%lf,%lf) -- (%lf,%lf)\n", xmin, ymin, xmax, ymax);
pdf_surface = cairo_pdf_surface_create(pdf_file, xmax-xmin, ymax-ymin);
pdf_cr = cairo_create(pdf_surface);
if (pdf_file) {
pdf_surface = cairo_pdf_surface_create(pdf_file, xmax-xmin, ymax-ymin);
pdf_cr = cairo_create(pdf_surface);
}
if (svg_file) {
svg_surface = cairo_svg_surface_create(svg_file, 200, 200);
svg_cr = cairo_create(svg_surface);
}
/* Write layers to PDF */
for (info_list = layer_infos; info_list != NULL; info_list = g_list_next(info_list)) {
@@ -258,13 +271,29 @@ void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *p
continue;
}
cairo_set_source_surface(pdf_cr, layers[linfo->layer].rec, -xmin, -ymin);
cairo_paint_with_alpha(pdf_cr, linfo->color.alpha);
if (pdf_file) {
cairo_set_source_surface(pdf_cr, layers[linfo->layer].rec, -xmin, -ymin);
cairo_paint_with_alpha(pdf_cr, linfo->color.alpha);
}
if (svg_file) {
cairo_set_source_surface(svg_cr, layers[linfo->layer].rec, -xmin, -ymin);
cairo_paint_with_alpha(svg_cr, linfo->color.alpha);
}
}
cairo_show_page(pdf_cr);
cairo_destroy(pdf_cr);
cairo_surface_destroy(pdf_surface);
if (pdf_file) {
cairo_show_page(pdf_cr);
cairo_destroy(pdf_cr);
cairo_surface_destroy(pdf_surface);
}
if (svg_file) {
cairo_show_page(svg_cr);
cairo_destroy(svg_cr);
cairo_surface_destroy(svg_surface);
}
ret_clear_layers:
for (i = 0; i < MAX_LAYERS; i++) {

5
cairo-output/cairo-output.h
View File

@@ -37,10 +37,11 @@
* @brief Render \p cell to a PDF file specified by \p pdf_file
* @param cell Toplevel cell to render
* @param layer_infos List of layer information. Specifies color and layer stacking
* @param pdf_file Output file
* @param pdf_file PDF output file. Set to NULL if no PDF file has to be generated
* @param svg_file SVG output file. Set to NULL if no SVG file has to be generated
* @param scale Scale the output image down by \p scale
*/
void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *pdf_file, double scale);
void cairo_render_cell_to_vector_file(struct gds_cell *cell, GList *layer_infos, char *pdf_file, char *svg_file, double scale);
/** @} */