248 lines
7.8 KiB
C
248 lines
7.8 KiB
C
/*
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* This file is part of Libsvgtiny
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* Licensed under the MIT License,
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* http://opensource.org/licenses/mit-license.php
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* Copyright 2008 James Bursa <james@semichrome.net>
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <svgtiny.h>
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#include "libnsfb.h"
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#include "libnsfb_plot.h"
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#include "libnsfb_event.h"
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nsfb_t *nsfb;
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nsfb_bbox_t screen_box;
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uint8_t *fbptr;
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int fbstride;
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nsfb_event_t event;
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static int setup_fb(void)
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{
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nsfb = nsfb_init(NSFB_FRONTEND_SDL);
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if (nsfb == NULL) {
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fprintf(stderr, "Unable to initialise nsfb with SDL frontend\n");
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return 1;
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}
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if (nsfb_init_frontend(nsfb) == -1) {
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fprintf(stderr, "Unable to initialise nsfb frontend\n");
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return 2;
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}
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/* get the geometry of the whole screen */
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screen_box.x0 = screen_box.y0 = 0;
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nsfb_get_geometry(nsfb, &screen_box.x1, &screen_box.y1, NULL);
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nsfb_get_framebuffer(nsfb, &fbptr, &fbstride);
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/* claim the whole screen for update */
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nsfb_claim(nsfb, &screen_box);
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nsfb_plot_clg(nsfb, 0xffffffff);
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return 0;
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}
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int main(int argc, char *argv[])
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{
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FILE *fd;
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float scale = 1.0;
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struct stat sb;
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char *buffer;
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size_t size;
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size_t n;
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struct svgtiny_diagram *diagram;
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svgtiny_code code;
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if (argc != 2 && argc != 3) {
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fprintf(stderr, "Usage: %s FILE [SCALE]\n", argv[0]);
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return 1;
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}
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/* load file into memory buffer */
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fd = fopen(argv[1], "rb");
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if (!fd) {
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perror(argv[1]);
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return 1;
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}
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if (stat(argv[1], &sb)) {
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perror(argv[1]);
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return 1;
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}
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size = sb.st_size;
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buffer = malloc(size);
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if (!buffer) {
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fprintf(stderr, "Unable to allocate %lld bytes\n",
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(long long) size);
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return 1;
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}
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n = fread(buffer, 1, size, fd);
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if (n != size) {
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perror(argv[1]);
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return 1;
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}
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fclose(fd);
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/* read scale argument */
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if (argc == 3) {
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scale = atof(argv[2]);
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if (scale == 0)
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scale = 1.0;
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}
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/* create svgtiny object */
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diagram = svgtiny_create();
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if (!diagram) {
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fprintf(stderr, "svgtiny_create failed\n");
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return 1;
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}
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/* parse */
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code = svgtiny_parse(diagram, buffer, size, argv[1], 1000, 1000);
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if (code != svgtiny_OK) {
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fprintf(stderr, "svgtiny_parse failed: ");
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switch (code) {
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case svgtiny_OUT_OF_MEMORY:
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fprintf(stderr, "svgtiny_OUT_OF_MEMORY");
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break;
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case svgtiny_LIBXML_ERROR:
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fprintf(stderr, "svgtiny_LIBXML_ERROR");
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break;
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case svgtiny_NOT_SVG:
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fprintf(stderr, "svgtiny_NOT_SVG");
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break;
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case svgtiny_SVG_ERROR:
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fprintf(stderr, "svgtiny_SVG_ERROR: line %i: %s",
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diagram->error_line,
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diagram->error_message);
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break;
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default:
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fprintf(stderr, "unknown svgtiny_code %i", code);
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break;
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}
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fprintf(stderr, "\n");
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}
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free(buffer);
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if (setup_fb() != 0)
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return 1;
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for (unsigned int i = 0; i != diagram->shape_count; i++) {
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nsfb_plot_pen_t pen;
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pen.stroke_colour = svgtiny_RED(diagram->shape[i].stroke) |
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svgtiny_GREEN(diagram->shape[i].stroke) << 8|
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svgtiny_BLUE(diagram->shape[i].stroke) << 16;
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pen.fill_colour = svgtiny_RED(diagram->shape[i].fill) |
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svgtiny_GREEN(diagram->shape[i].fill) << 8|
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svgtiny_BLUE(diagram->shape[i].fill) << 16;
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if (diagram->shape[i].fill == svgtiny_TRANSPARENT)
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pen.fill_type = NFSB_PLOT_OPTYPE_NONE;
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else
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pen.fill_type = NFSB_PLOT_OPTYPE_SOLID;
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if (diagram->shape[i].stroke == svgtiny_TRANSPARENT)
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pen.stroke_type = NFSB_PLOT_OPTYPE_NONE;
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else
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pen.stroke_type = NFSB_PLOT_OPTYPE_SOLID;
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pen.stroke_width = scale * diagram->shape[i].stroke_width;
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if (diagram->shape[i].path) {
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nsfb_plot_pathop_t *fb_path;
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int fb_path_c;
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unsigned int j;
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fb_path = malloc(diagram->shape[i].path_length * 3 * sizeof(nsfb_plot_pathop_t));
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fb_path_c = 0;
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for (j = 0;
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j != diagram->shape[i].path_length; ) {
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switch ((int) diagram->shape[i].path[j]) {
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case svgtiny_PATH_MOVE:
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_MOVE;
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fb_path[fb_path_c].point.x = scale * diagram->shape[i].path[j + 1];
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fb_path[fb_path_c].point.y = scale * diagram->shape[i].path[j + 2];
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fb_path_c++;
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j += 3;
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break;
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case svgtiny_PATH_CLOSE:
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_LINE;
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fb_path[fb_path_c].point.x = fb_path[0].point.x;
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fb_path[fb_path_c].point.y = fb_path[0].point.y;
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fb_path_c++;
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j += 1;
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break;
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case svgtiny_PATH_LINE:
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_LINE;
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fb_path[fb_path_c].point.x = scale * diagram->shape[i].path[j + 1];
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fb_path[fb_path_c].point.y = scale * diagram->shape[i].path[j + 2];
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fb_path_c++;
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j += 3;
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break;
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case svgtiny_PATH_BEZIER:
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_MOVE;
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fb_path[fb_path_c].point.x = scale * diagram->shape[i].path[j + 1];
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fb_path[fb_path_c].point.y = scale * diagram->shape[i].path[j + 2];
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fb_path_c++;
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_MOVE;
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fb_path[fb_path_c].point.x = scale * diagram->shape[i].path[j + 3];
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fb_path[fb_path_c].point.y = scale * diagram->shape[i].path[j + 4];
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fb_path_c++;
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fb_path[fb_path_c].operation = NFSB_PLOT_PATHOP_CUBIC;
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fb_path[fb_path_c].point.x = scale * diagram->shape[i].path[j + 5];
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fb_path[fb_path_c].point.y = scale * diagram->shape[i].path[j + 6];
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fb_path_c++;
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j += 7;
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break;
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default:
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printf("error ");
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j += 1;
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}
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}
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nsfb_plot_path(nsfb, fb_path_c, fb_path, &pen);
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} else if (diagram->shape[i].text) {
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/* printf("text %g %g '%s' ",
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scale * diagram->shape[i].text_x,
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scale * diagram->shape[i].text_y,
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diagram->shape[i].text);*/
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}
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}
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svgtiny_free(diagram);
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nsfb_update(nsfb, &screen_box);
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while (event.type != NSFB_EVENT_CONTROL)
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nsfb_event(nsfb, &event, -1);
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return 0;
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}
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/*
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cc -g -std=c99 -D_BSD_SOURCE -I/home/vince/netsurf/libnsfb/include/ -I/home/vince/netsurf/libnsfb/src -I/usr/local/include -I/usr/include/libxml2 -Wall -Wextra -Wundef -Wpointer-arith -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Werror -pedantic -Wno-overlength-strings -DNDEBUG -O2 -DBUILD_TARGET_Linux -DBUILD_HOST_Linux -o build-Linux-Linux-release-lib-static/test_svgtiny.o -c test/svgtiny.c
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cc -o build-Linux-Linux-release-lib-static/test_svgtiny build-Linux-Linux-release-lib-static/test_svgtiny.o -Wl,--whole-archive -lnsfb -Wl,--no-whole-archive -lSDL -Lbuild-Linux-Linux-release-lib-static/ -lnsfb -lsvgtiny -lxml2
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*/
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