fpgatools/draw_svg_tiles.c

104 lines
3.2 KiB
C

//
// Author: Wolfgang Spraul
//
// This is free and unencumbered software released into the public domain.
// For details see the UNLICENSE file at the root of the source tree.
//
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
#include <sys/stat.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
#include <libxml/xpathInternals.h>
#include "model.h"
void print_svg_tiles(struct fpga_model* model);
int main(int argc, char** argv)
{
static const xmlChar* empty_svg = (const xmlChar*)
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<svg version=\"2.0\"\n"
" xmlns=\"http://www.w3.org/2000/svg\"\n"
" xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
" xmlns:fpga=\"http://qi-hw.com/fpga\"\n"
" id=\"root\">\n"
"<style type=\"text/css\"><![CDATA[text{font-size:6pt;text-anchor:end;}]]></style>\n"
"</svg>\n";
xmlDocPtr doc = 0;
xmlXPathContextPtr xpathCtx = 0;
xmlXPathObjectPtr xpathObj = 0;
xmlNodePtr new_node;
struct fpga_model* model = 0;
char str[128];
int i, j;
// can't get indent formatting to work - use 'xmllint --pretty 1 -'
// on the output for now
xmlInitParser();
model = fpga_build_model(XC6SLX9_ROWS, XC6SLX9_COLUMNS,
XC6SLX9_LEFT_WIRING, XC6SLX9_RIGHT_WIRING);
if (!model) goto fail;
doc = xmlParseDoc(empty_svg);
if (!doc) {
fprintf(stderr, "Internal error %i.\n", __LINE__);
goto fail;
}
xpathCtx = xmlXPathNewContext(doc);
if (!xpathCtx) {
fprintf(stderr, "Cannot create XPath context.\n");
goto fail;
}
xmlXPathRegisterNs(xpathCtx, BAD_CAST "svg", BAD_CAST "http://www.w3.org/2000/svg");
xpathObj = xmlXPathEvalExpression(BAD_CAST "//svg:*[@id='root']", xpathCtx);
if (!xpathObj) {
fprintf(stderr, "Cannot evaluate root expression.\n");
goto fail;
}
if (!xpathObj->nodesetval) {
fprintf(stderr, "Cannot find root node.\n");
goto fail;
}
if (xpathObj->nodesetval->nodeNr != 1) {
fprintf(stderr, "Found %i root nodes.\n", xpathObj->nodesetval->nodeNr);
goto fail;
}
for (i = 0; i < model->tile_y_range; i++) {
for (j = 0; j < model->tile_x_range; j++) {
strcpy(str, fpga_tiletype_str(model->tiles[i*model->tile_x_range+j].type));
new_node = xmlNewChild(xpathObj->nodesetval->nodeTab[0], 0 /* xmlNsPtr */, BAD_CAST "text", BAD_CAST str);
xmlSetProp(new_node, BAD_CAST "x", xmlXPathCastNumberToString(130 + j*130));
xmlSetProp(new_node, BAD_CAST "y", xmlXPathCastNumberToString(40 + i*14));
xmlSetProp(new_node, BAD_CAST "fpga:tile_y", BAD_CAST xmlXPathCastNumberToString(i));
xmlSetProp(new_node, BAD_CAST "fpga:tile_x", BAD_CAST xmlXPathCastNumberToString(j));
}
}
xmlSetProp(xpathObj->nodesetval->nodeTab[0], BAD_CAST "width", BAD_CAST xmlXPathCastNumberToString(model->tile_x_range * 130 + 65));
xmlSetProp(xpathObj->nodesetval->nodeTab[0], BAD_CAST "height", BAD_CAST xmlXPathCastNumberToString(model->tile_y_range * 14 + 60));
xmlDocFormatDump(stdout, doc, 1 /* format */);
xmlXPathFreeObject(xpathObj);
xmlXPathFreeContext(xpathCtx);
xmlFreeDoc(doc);
xmlCleanupParser();
return EXIT_SUCCESS;
fail:
if (xpathObj) xmlXPathFreeObject(xpathObj);
if (xpathCtx) xmlXPathFreeContext(xpathCtx);
if (doc) xmlFreeDoc(doc);
xmlCleanupParser();
return EXIT_FAILURE;
}