nanovega_demo/svgraster.d

   1 //
   2 // Copyright (c) 2013 Mikko Mononen memon@inside.org
   3 //
   4 // This software is provided 'as-is', without any express or implied
   5 // warranty.  In no event will the authors be held liable for any damages
   6 // arising from the use of this software.
   7 // Permission is granted to anyone to use this software for any purpose,
   8 // including commercial applications, and to alter it and redistribute it
   9 // freely, subject to the following restrictions:
  10 // 1. The origin of this software must not be misrepresented; you must not
  11 //    claim that you wrote the original software. If you use this software
  12 //    in a product, an acknowledgment in the product documentation would be
  13 //    appreciated but is not required.
  14 // 2. Altered source versions must be plainly marked as such, and must not be
  15 //    misrepresented as being the original software.
  16 // 3. This notice may not be removed or altered from any source distribution.
  17 //
  18 import core.stdc.stdio;
  19 import iv.nanovega.svg;
  20
  21 import arsd.color;
  22 import arsd.image;
  23
  24
  25 void writePng (NSVG* svg, string ofname) {
  26   import core.time, std.datetime;
  27   import std.stdio : writeln;
  28   assert(svg !is null);
  29   assert(cast(int)svg.width > 0);
  30   assert(cast(int)svg.height > 0);
  31   assert(svg.width < 32768);
  32   assert(svg.height < 32768);
  33
  34   ubyte[] svgraster;
  35   auto rst = nsvgCreateRasterizer();
  36   scope(exit) rst.kill();
  37   auto stt = MonoTime.currTime;
  38   svgraster = new ubyte[](cast(int)svg.width*cast(int)svg.height*4);
  39   rst.rasterize(svg,
  40     0, 0, // ofs
  41     1, // scale
  42     svgraster.ptr, cast(int)svg.width, cast(int)svg.height);
  43   auto dur = (MonoTime.currTime-stt).total!"msecs";
  44   writeln("rasterizing took ", dur, " milliseconds (", dur/1000.0, " seconds)");
  45   auto tc = new TrueColorImage(cast(int)svg.width, cast(int)svg.height, svgraster);
  46   scope(exit) tc.destroy;
  47   arsd.png.writePng(ofname, tc);
  48 }
  49
  50
  51 void main (string[] args) {
  52   import core.time;
  53
  54   NSVG* svg;
  55   scope(exit) svg.kill();
  56   {
  57     import std.stdio : writeln;
  58     import core.time, std.datetime;
  59     auto stt = MonoTime.currTime;
  60     svg = nsvgParseFromFile(args.length > 1 ? args[1] : "data/svg/tiger.svg");
  61     auto dur = (MonoTime.currTime-stt).total!"msecs";
  62     writeln("loading took ", dur, " milliseconds (", dur/1000.0, " seconds)");
  63     { import std.stdio; writeln(args.length > 1 ? args[1] : "data/svg/tiger.svg"); }
  64   }
  65
  66   svg.writePng("zout.png");
  67 }