mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-25 07:49:38 +03:00
396 lines
9.3 KiB
C
396 lines
9.3 KiB
C
/*
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* Copyright 2009 Chris Young <chris@unsatisfactorysoftware.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef WITH_NS_SVG
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#include <stdio.h>
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#include <svgtiny.h>
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#include <proto/exec.h>
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#include <string.h>
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#include "iff_dr2d.h"
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#include <proto/dos.h>
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struct ColorRegister cm[1000];
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ULONG numcols;
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ULONG findcolour(ULONG newcol)
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{
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ULONG i;
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ULONG colour = 0xFFFFFFFF;
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UBYTE red,grn,blu;
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red = svgtiny_RED(newcol);
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grn = svgtiny_GREEN(newcol);
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blu = svgtiny_BLUE(newcol);
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for(i=0;i<numcols;i++)
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{
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if((cm[i].red == red) && (cm[i].green == grn) && (cm[i].blue == blu))
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colour = i;
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}
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return colour;
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}
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void addcolour(ULONG newcol)
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{
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int i;
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ULONG colour;
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UBYTE red,grn,blu;
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colour = findcolour(newcol);
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if(colour == 0xFFFFFFFF)
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{
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cm[numcols].red = svgtiny_RED(newcol);
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cm[numcols].green = svgtiny_GREEN(newcol);
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cm[numcols].blue = svgtiny_BLUE(newcol);
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numcols++;
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}
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}
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bool ami_svg_to_dr2d(struct IFFHandle *iffh,char *buffer, uint32 size, char *url)
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{
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struct svgtiny_diagram *diagram;
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svgtiny_code code;
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unsigned int i;
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unsigned int j;
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BOOL fons_written = FALSE;
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struct fons_struct *fons;
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struct stxt_struct *stxt;
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struct attr_struct *attr;
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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, url, 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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if(!(PushChunk(iffh,ID_DR2D,ID_FORM,IFFSIZE_UNKNOWN)))
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{
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if(!(PushChunk(iffh,0,ID_NAME,IFFSIZE_UNKNOWN)))
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{
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WriteChunkBytes(iffh,url,strlen(url));
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PopChunk(iffh);
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}
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if(!(PushChunk(iffh,0,ID_ANNO,18)))
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{
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WriteChunkBytes(iffh,"Created by NetSurf",18);
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PopChunk(iffh);
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}
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if(!(PushChunk(iffh,0,ID_DRHD,16)))
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{
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struct drhd_struct drhd;
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drhd.XLeft = (float) 0.0;
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drhd.YTop = (float) 0.0;
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drhd.XRight = (float) diagram->width;
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drhd.YBot = (float) diagram->height;
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WriteChunkBytes(iffh,&drhd,16);
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PopChunk(iffh);
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}
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if(!(PushChunk(iffh,0,ID_DASH,IFFSIZE_UNKNOWN)))
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{
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struct dash_struct dash;
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dash.DashID = 1;
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dash.NumDashes = 0;
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WriteChunkBytes(iffh,&dash,sizeof(struct dash_struct));
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PopChunk(iffh);
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}
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if(!(PushChunk(iffh,0,ID_CMAP,IFFSIZE_UNKNOWN)))
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{
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for (i = 0; i != diagram->shape_count; i++) {
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if(diagram->shape[i].fill != svgtiny_TRANSPARENT)
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{
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addcolour(diagram->shape[i].fill);
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}
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if(diagram->shape[i].stroke != svgtiny_TRANSPARENT)
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{
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addcolour(diagram->shape[i].stroke);
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}
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}
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WriteChunkBytes(iffh,cm,3*numcols);
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PopChunk(iffh);
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}
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for (i = 0; i != diagram->shape_count; i++) {
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attr = AllocVec(sizeof(struct attr_struct),MEMF_CLEAR | MEMF_PRIVATE);
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if (diagram->shape[i].fill == svgtiny_TRANSPARENT)
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attr->FillType = FT_NONE;
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else
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{
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attr->FillType = FT_COLOR;
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attr->FillValue = findcolour(diagram->shape[i].fill);
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}
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if (diagram->shape[i].stroke == svgtiny_TRANSPARENT)
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attr->DashPattern = 0;
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else
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{
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attr->DashPattern = 1;
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attr->EdgeValue = findcolour(diagram->shape[i].stroke);
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}
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attr->EdgeThick = (float) diagram->shape[i].stroke_width;
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if(!(PushChunk(iffh,0,ID_ATTR,IFFSIZE_UNKNOWN)))
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{
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WriteChunkBytes(iffh,attr,14);
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PopChunk(iffh);
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}
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FreeVec(attr);
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if (diagram->shape[i].path) {
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union {
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float PolyPoints;
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ULONG val;
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} poly[(diagram->shape[i].path_length)*2];
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USHORT NumPoints;
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long type;
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float curx,cury;
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curx = 0.0;
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cury = 0.0;
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NumPoints = 0;
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type = ID_OPLY;
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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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if(j != 0)
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{
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poly[NumPoints*2].val = INDICATOR;
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poly[(NumPoints*2)+1].val = IND_MOVETO;
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NumPoints++;
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}
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poly[(NumPoints*2)].PolyPoints = diagram->shape[i].path[j + 1];
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poly[(NumPoints*2)+1].PolyPoints = diagram->shape[i].path[j + 2];
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NumPoints++;
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curx = (float) diagram->shape[i].path[j + 1];
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cury = (float) diagram->shape[i].path[j + 2];
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j += 3;
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break;
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case svgtiny_PATH_CLOSE:
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type = ID_CPLY;
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j += 1;
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break;
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case svgtiny_PATH_LINE:
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poly[(NumPoints*2)].PolyPoints = (float) diagram->shape[i].path[j + 1];
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poly[(NumPoints*2)+1].PolyPoints = (float) diagram->shape[i].path[j + 2];
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NumPoints++;
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curx = (float) diagram->shape[i].path[j + 1];
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cury = (float) diagram->shape[i].path[j + 2];
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j += 3;
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break;
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case svgtiny_PATH_BEZIER:
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poly[NumPoints*2].val = INDICATOR;
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poly[(NumPoints*2)+1].val = IND_CURVE;
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NumPoints++;
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poly[(NumPoints*2)].PolyPoints = curx;
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poly[(NumPoints*2)+1].PolyPoints = cury;
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NumPoints++;
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poly[(NumPoints*2)].PolyPoints = (float) diagram->shape[i].path[j + 1];
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poly[(NumPoints*2)+1].PolyPoints = (float) diagram->shape[i].path[j + 2];
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NumPoints++;
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poly[(NumPoints*2)].PolyPoints = (float) diagram->shape[i].path[j + 3];
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poly[(NumPoints*2)+1].PolyPoints = (float) diagram->shape[i].path[j + 4];
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NumPoints++;
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poly[(NumPoints*2)].PolyPoints = (float) diagram->shape[i].path[j + 5];
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poly[(NumPoints*2)+1].PolyPoints = (float) diagram->shape[i].path[j + 6];
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curx = poly[(NumPoints*2)].PolyPoints;
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cury = poly[(NumPoints*2)+1].PolyPoints;
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NumPoints++;
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j += 7;
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break;
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default:
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printf("error\n");
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j += 1;
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}
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}
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if(!(PushChunk(iffh,0,type,IFFSIZE_UNKNOWN)))
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{
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WriteChunkBytes(iffh,&NumPoints,sizeof(USHORT));
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WriteChunkBytes(iffh,poly,NumPoints*2*4);
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PopChunk(iffh);
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}
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} else if (diagram->shape[i].text) {
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stxt = AllocVec(sizeof(struct stxt_struct),MEMF_CLEAR);
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stxt->BaseX = diagram->shape[i].text_x;
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stxt->BaseY = diagram->shape[i].text_y;
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stxt->NumChars = strlen(diagram->shape[i].text);
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if(!fons_written)
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{
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fons = AllocVec(sizeof(struct fons_struct),MEMF_CLEAR);
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if(!(PushChunk(iffh,0,ID_FONS,IFFSIZE_UNKNOWN)))
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{
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WriteChunkBytes(iffh,fons,sizeof(struct fons_struct));
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WriteChunkBytes(iffh,"Topaz",5);
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PopChunk(iffh);
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}
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FreeVec(fons);
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fons_written = TRUE;
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}
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if(!(PushChunk(iffh,0,ID_STXT,IFFSIZE_UNKNOWN)))
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{
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WriteChunkBytes(iffh,stxt,26);
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WriteChunkBytes(iffh,diagram->shape[i].text,strlen(diagram->shape[i].text));
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PopChunk(iffh);
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}
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FreeVec(stxt);
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}
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}
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PopChunk(iffh);
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}
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svgtiny_free(diagram);
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return 0;
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}
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#ifndef AMIGA_DR2D_STANDALONE
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bool ami_save_svg(struct content *c,char *filename)
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{
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struct IFFHandle *iffh;
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if(iffh = AllocIFF())
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{
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if(iffh->iff_Stream = Open(filename,MODE_NEWFILE))
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{
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InitIFFasDOS(iffh);
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}
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else return false;
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}
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if((OpenIFF(iffh,IFFF_WRITE))) return false;
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ami_svg_to_dr2d(iffh,c->source_data,c->source_size,c->url);
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if(iffh) CloseIFF(iffh);
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if(iffh->iff_Stream) Close((BPTR)iffh->iff_Stream);
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if(iffh) FreeIFF(iffh);
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}
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#else
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/*
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* This code can be compiled as a standalone program for testing etc.
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* Use something like the following line:
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* gcc -o svg2dr2d iff_dr2d.c -lauto -lsvgtiny -lxml2 -lpthread -lz -use-dynld
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* -DWITH_NS_SVG -DAMIGA_DR2D_STANDALONE -D__USE_INLINE__
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*/
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const char USED ver[] = "\0$VER: svg2dr2d 1.1 (18.05.2009)\0";
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int main(int argc, char **argv)
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{
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BPTR fh = 0;
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char *buffer;
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size_t n;
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struct IFFHandle *iffh = NULL;
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int64 size;
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LONG rarray[] = {0,0};
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struct RDArgs *args;
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STRPTR template = "SVG=INPUT/A,DR2D=OUTPUT/A";
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enum
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{
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A_SVG,
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A_DR2D
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};
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args = ReadArgs(template,rarray,NULL);
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if(!args)
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{
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printf("Required argument missing\n");
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return 20;
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}
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if(fh = Open((char *)rarray[A_SVG],MODE_OLDFILE))
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{
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size = GetFileSize(fh);
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buffer = AllocVec((uint32)size,MEMF_PRIVATE);
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Read(fh,buffer,(uint32)size);
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Close(fh);
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}
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else
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{
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printf("Unable to open file\n");
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return 20;
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}
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if(iffh = AllocIFF())
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{
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if(iffh->iff_Stream = Open((char *)rarray[A_DR2D],MODE_NEWFILE))
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{
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InitIFFasDOS(iffh);
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}
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else return 20;
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}
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if((OpenIFF(iffh,IFFF_WRITE))) return 20;
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ami_svg_to_dr2d(iffh,buffer,size,(char *)rarray[A_SVG]);
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FreeVec(buffer);
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if(iffh) CloseIFF(iffh);
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if(iffh->iff_Stream) Close((BPTR)iffh->iff_Stream);
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if(iffh) FreeIFF(iffh);
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FreeArgs(args);
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}
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#endif // AMIGA_DR2D_STANDALONE
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#endif // WITH_NS_SVG
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