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<h1>simple.c</h1><div class="fragment"><pre class="fragment"><span class="comment">/*</span>
<span class="comment"> */</span>
<span class="preprocessor">#include <stdio.h></span>
<span class="preprocessor">#include <stdlib.h></span>
<span class="preprocessor">#include <ogg/ogg.h></span>
<span class="preprocessor">#include <kate/kate.h></span>
<span class="preprocessor">#include "common.h"</span>
<span class="comment">/* All the libtiger API is available from the main tiger header file: */</span>
<span class="preprocessor">#include <tiger/tiger.h></span>
<span class="preprocessor">#define FPS ((kate_float)25.0)</span>
<span class="preprocessor"></span>
<span class="keyword">static</span> <span class="keywordtype">void</span> step_render(tiger_renderer *tr,kate_float *t,kate_float t1)
{
<span class="keywordflow">for</span> (;*t<=t1;*t+=(kate_float)1.0/FPS) {
tiger_renderer_update(tr,*t,1);
<span class="keywordflow">if</span> (tiger_renderer_is_dirty(tr)) {
tiger_renderer_render(tr);
}
}
}
<span class="keywordtype">int</span> main()
{
ogg_sync_state oy;
ogg_stream_state os;
<span class="keywordtype">int</span> init=0;
ogg_packet op;
kate_state k;
<span class="keyword">const</span> kate_event *ev;
kate_packet kp;
<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *image;
tiger_renderer *tr;
kate_float render_time=(kate_float)0;
kate_float end_time=(kate_float)0;
set_binary_file(stdin);
<span class="comment">/* create a buffer to draw to */</span>
image=(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)malloc(640*480*4);
<span class="comment">/* we initialize ogg, kate, and tiger */</span>
ogg_sync_init(&oy);
kate_high_decode_init(&k);
tiger_renderer_create(&tr);
tiger_renderer_set_buffer(tr,image,640,480,640*4,0);
tiger_renderer_set_surface_clear_color(tr,1,0,0,0,0);
<span class="comment">/*</span>
<span class="comment"> We then read packets and feed them to the libkate high level API. When</span>
<span class="comment"> kate_high_decode_packetin returns a positive number, this signals the</span>
<span class="comment"> end of the stream.</span>
<span class="comment"> */</span>
<span class="keywordflow">while</span> (1) {
<span class="keywordflow">if</span> (get_packet(&oy,&os,&init,&op)) <span class="keywordflow">break</span>;
kate_packet_wrap(&kp,op.bytes,op.packet);
<span class="keywordflow">if</span> (kate_high_decode_packetin(&k,&kp,&ev)>0) <span class="keywordflow">break</span>;
<span class="comment">/* if the event is non NULL, we have an event */</span>
<span class="keywordflow">if</span> (ev) {
step_render(tr,&render_time,ev->start_time);
<span class="keywordflow">if</span> (ev->end_time>end_time) end_time=ev->end_time;
tiger_renderer_add_event(tr,k.ki,ev);
}
}
step_render(tr,&render_time,end_time);
<span class="comment">/* That's it, we can now cleanup */</span>
tiger_renderer_destroy(tr);
free(image);
ogg_stream_clear(&os);
ogg_sync_clear(&oy);
kate_high_decode_clear(&k);
<span class="keywordflow">return</span> 0;
}
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