mhu/gds-render
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Enable status upgrades from Cairo renderer to activity bar.

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This commit is contained in:
Mario Hüttel 2019-09-19 21:42:55 +02:00
parent 8b1d3709b7
commit 5f6dbbed0e
2 changed files with 39 additions and 15 deletions
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50
output-renderers/cairo-renderer.c
View File

@ -227,7 +227,7 @@ static int read_line_from_fd(int fd, char *buff, size_t buff_size)
* @param scale Scale the output image down by \p scale
* @return Error
*/
static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GList *layer_infos, const char *pdf_file,
static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer, struct gds_cell *cell, GList *layer_infos, const char *pdf_file,
const char *svg_file, double scale)
{
cairo_surface_t *pdf_surface = NULL, *svg_surface = NULL;
@ -240,28 +240,40 @@ static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GLis
double rec_x0, rec_y0, rec_width, rec_height;
double xmin = INT32_MAX, xmax = INT32_MIN, ymin = INT32_MAX, ymax = INT32_MIN;
pid_t process_id;
int comm_pipe[2];
char receive_message[200];
if (pdf_file == NULL && svg_file == NULL) {
/* No output specified */
return -1;
}
/* Generate communication pipe for status updates */
if (pipe(comm_pipe) == -1)
return -2;
/* Fork to a new child process. This ensures the memory leaks (see issue #16) in Cairo don't
* brick everything.
*
* And by the way: This now bricks all Windows compatibility. Deal with it.
*/
/* Use fork for production code and -1 as value for debugging */
process_id = fork();
//process_id = -1;
if (process_id < 0) {
/* Well... shit... We have to run it in our process. */
/* This should not happen */
fprintf(stderr, "Fatal error: Cairo Renderer: Could not spawn child process!");
exit(-2);
} else if (process_id > 0) {
/* Woohoo... Successfully dumped the shitty code to an unknowing victim */
goto ret_parent;
}
/* Close stdin and (stdout and stderr may live on) */
close(0);
//close(1);
close(comm_pipe[0]);
layers = (struct cairo_layer *)calloc(MAX_LAYERS, sizeof(struct cairo_layer));
/* Clear layers */
@ -291,7 +303,7 @@ static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GLis
}
}
dprintf(comm_pipe[1], "Rendering layers\n");
render_cell(cell, layers, scale);
/* get size of image and top left coordinate */
@ -309,7 +321,7 @@ static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GLis
/* Print size */
cairo_recording_surface_ink_extents(layers[linfo->layer].rec, &rec_x0, &rec_y0,
&rec_width, &rec_height);
printf("Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n",
dprintf(comm_pipe[1], "Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n",
linfo->layer,
(linfo->name && linfo->name[0] ? " (" : ""),
(linfo->name && linfo->name[0] ? linfo->name : ""),
@ -328,7 +340,7 @@ static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GLis
}
printf("Cell bounding box: (%lf | %lf) -- (%lf | %lf)\n", xmin, ymin, xmax, ymax);
/* printf("Cell bounding box: (%lf | %lf) -- (%lf | %lf)\n", xmin, ymin, xmax, ymax); */
if (pdf_file) {
pdf_surface = cairo_pdf_surface_create(pdf_file, xmax-xmin, ymax-ymin);
@ -344,6 +356,8 @@ static int cairo_renderer_render_cell_to_vector_file(struct gds_cell *cell, GLis
for (info_list = layer_infos; info_list != NULL; info_list = g_list_next(info_list)) {
linfo = (struct layer_info *)info_list->data;
dprintf(comm_pipe[1], "Exporting layer %d to file\n", linfo->layer);
if (linfo->layer >= MAX_LAYERS) {
printf("Layer outside of Spec.\n");
continue;
@ -387,14 +401,26 @@ ret_clear_layers:
printf("Cairo export finished. It might still be buggy!\n");
/* If forked, suspend process */
if (process_id == 0)
/* Suspend child process */
exit(0);
/* Fork didn't work. Just return here */
return 0;
ret_parent:
close(comm_pipe[1]);
while (read_line_from_fd(comm_pipe[0], receive_message, sizeof(receive_message)) > 0) {
/* Strip \n from string and replace with ' ' */
for (i = 0; receive_message[i] != '\0'; i++) {
if (receive_message[i] == '\n')
receive_message[i] = ' ';
}
/* Update asyc progress*/
gds_output_renderer_update_gui_status_from_async(renderer, receive_message);
}
waitpid(process_id, NULL, 0);
close(comm_pipe[0]);
return 0;
}
@ -432,7 +458,7 @@ static int cairo_renderer_render_output(GdsOutputRenderer *renderer,
pdf_file = output_file;
gds_output_renderer_update_gui_status_from_async(renderer, "Rendering Cairo Output...");
ret = cairo_renderer_render_cell_to_vector_file(cell, layer_infos, pdf_file, svg_file, scale);
ret = cairo_renderer_render_cell_to_vector_file(renderer, cell, layer_infos, pdf_file, svg_file, scale);
if (settings)
g_object_unref(settings);

2
output-renderers/gds-output-renderer.c
View File

@ -260,8 +260,6 @@ LayerSettings *gds_output_renderer_get_and_ref_layer_settings(GdsOutputRenderer
/* This function seems to already reference the LayerSettings object */
g_object_get(renderer, "layer-settings", &ret, NULL);
/* Reference it, so it is not cleared by another thread overwriting the property */
//g_object_ref(ret);
/* It is now safe to clear the lock */
g_mutex_unlock(&priv->settings_lock);