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<div id="projectname">SDL2_gfx
 <span id="projectnumber">1.0.2</span>
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<div id="projectbrief">GraphicsprimitivesandsurfacefunctionsforSDL2</div>
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<div class="title">/cygdrive/i/Sources/sdl2gfx/SDL2_framerate.c</div> </div>
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<a href="_s_d_l2__framerate_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"></span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">SDL2_framerate.c: framerate manager</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">Copyright (C) 2012-2014 Andreas Schiffler</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"></span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">This software is provided 'as-is', without any express or implied</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">warranty. In no event will the authors be held liable for any damages</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">arising from the use of this software.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">Permission is granted to anyone to use this software for any purpose,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">including commercial applications, and to alter it and redistribute it</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">freely, subject to the following restrictions:</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"></span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">1. The origin of this software must not be misrepresented; you must not</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">claim that you wrote the original software. If you use this software</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">in a product, an acknowledgment in the product documentation would be</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">appreciated but is not required.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"></span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">2. Altered source versions must be plainly marked as such, and must not be</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">misrepresented as being the original software.</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">3. This notice may not be removed or altered from any source</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">distribution.</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">Andreas Schiffler -- aschiffler at ferzkopp dot net</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="_s_d_l2__framerate_8h.html">SDL2_framerate.h</a>"</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe"> 37</a></span> Uint32 <a class="code" href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe">_getTicks</a>()</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  Uint32 ticks = SDL_GetTicks();</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">/* </span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * Since baseticks!=0 is used to track initialization</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * we need to ensure that the tick count is always >0 </span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * since SDL_GetTicks may not have incremented yet and</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * return 0 depending on the timing of the calls.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">if</span> (ticks == 0) {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> ticks;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8h.html#a843f0672446aff01ef03bbcd977fbedf"> 62</a></span> <span class="keywordtype">void</span> <a class="code" href="_s_d_l2__framerate_8c.html#a444ebaaaa6b1ceeafa921562bdab1a44">SDL_initFramerate</a>(<a class="code" href="struct_f_p_smanager.html">FPSmanager</a> * manager)</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * Store some sane values </span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a> = 0;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  manager-><a class="code" href="struct_f_p_smanager.html#af7eec7342fd8eb48d5f49ba7f5b91853">rate</a> = <a class="code" href="_s_d_l2__framerate_8h.html#ab3ac02e6acb348129a019b9f20aa5c90">FPS_DEFAULT</a>;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  manager-><a class="code" href="struct_f_p_smanager.html#a48695d55d40900a197688bb773b9d431">rateticks</a> = (1000.0f / (float) <a class="code" href="_s_d_l2__framerate_8h.html#ab3ac02e6acb348129a019b9f20aa5c90">FPS_DEFAULT</a>);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  manager-><a class="code" href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">baseticks</a> = <a class="code" href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe">_getTicks</a>();</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  manager-><a class="code" href="struct_f_p_smanager.html#aa7716779b7cc57dee24c15d7c5d62e55">lastticks</a> = manager-><a class="code" href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">baseticks</a>;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8h.html#aa2f7f11e60d81489392707faf07c5ac5"> 86</a></span> <span class="keywordtype">int</span> <a class="code" href="_s_d_l2__framerate_8c.html#afad4b503cf9719daced45fa4d9653d72">SDL_setFramerate</a>(<a class="code" href="struct_f_p_smanager.html">FPSmanager</a> * manager, Uint32 rate)</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> ((rate >= <a class="code" href="_s_d_l2__framerate_8h.html#a9555dceeaaffdd2669c991e6a300085b">FPS_LOWER_LIMIT</a>) && (rate <= <a class="code" href="_s_d_l2__framerate_8h.html#aeaeac0f0b439344496e29abf60904d58">FPS_UPPER_LIMIT</a>)) {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a> = 0;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  manager-><a class="code" href="struct_f_p_smanager.html#af7eec7342fd8eb48d5f49ba7f5b91853">rate</a> = rate;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  manager-><a class="code" href="struct_f_p_smanager.html#a48695d55d40900a197688bb773b9d431">rateticks</a> = (1000.0f / (float) rate);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> (0);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> (-1);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8h.html#aebe43457dbb9fbfec6de18e7adf49e21"> 107</a></span> <span class="keywordtype">int</span> <a class="code" href="_s_d_l2__framerate_8c.html#a575bb511d6f817ad846a788cbd08ae91">SDL_getFramerate</a>(<a class="code" href="struct_f_p_smanager.html">FPSmanager</a> * manager)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (manager == NULL) {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> (-1);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">int</span>)manager-><a class="code" href="struct_f_p_smanager.html#af7eec7342fd8eb48d5f49ba7f5b91853">rate</a>);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8h.html#a41de3f516b9633f102d7ba2e85d2bb98"> 126</a></span> <span class="keywordtype">int</span> <a class="code" href="_s_d_l2__framerate_8c.html#a96b13e26f8436222e866904a592a6eec">SDL_getFramecount</a>(<a class="code" href="struct_f_p_smanager.html">FPSmanager</a> * manager)</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (manager == NULL) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> (-1);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">int</span>)manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a>);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="_s_d_l2__framerate_8h.html#afc3b999d59d913771cd2588299096274"> 146</a></span> Uint32 <a class="code" href="_s_d_l2__framerate_8c.html#afce13fa3dd37130deb4975d8b230c3ba">SDL_framerateDelay</a>(<a class="code" href="struct_f_p_smanager.html">FPSmanager</a> * manager)</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  Uint32 current_ticks;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  Uint32 target_ticks;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  Uint32 the_delay;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  Uint32 time_passed = 0;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> * No manager, no delay</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> (manager == NULL) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * Initialize uninitialized manager </span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (manager-><a class="code" href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">baseticks</a> == 0) {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="_s_d_l2__framerate_8c.html#a444ebaaaa6b1ceeafa921562bdab1a44">SDL_initFramerate</a>(manager);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"> * Next frame </span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a>++;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> * Get/calc ticks </span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  current_ticks = <a class="code" href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe">_getTicks</a>();</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  time_passed = current_ticks - manager-><a class="code" href="struct_f_p_smanager.html#aa7716779b7cc57dee24c15d7c5d62e55">lastticks</a>;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  manager-><a class="code" href="struct_f_p_smanager.html#aa7716779b7cc57dee24c15d7c5d62e55">lastticks</a> = current_ticks;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  target_ticks = manager-><a class="code" href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">baseticks</a> + (Uint32) ((<span class="keywordtype">float</span>) manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a> * manager-><a class="code" href="struct_f_p_smanager.html#a48695d55d40900a197688bb773b9d431">rateticks</a>);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (current_ticks <= target_ticks) {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  the_delay = target_ticks - current_ticks;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  SDL_Delay(the_delay);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  manager-><a class="code" href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">framecount</a> = 0;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  manager-><a class="code" href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">baseticks</a> = <a class="code" href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe">_getTicks</a>();</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> time_passed;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> }</div>
<div class="ttc" id="struct_f_p_smanager_html_a05019faae5de8486dbb69d24b24eed78"><div class="ttname"><a href="struct_f_p_smanager.html#a05019faae5de8486dbb69d24b24eed78">FPSmanager::framecount</a></div><div class="ttdeci">Uint32 framecount</div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00063">SDL2_framerate.h:63</a></div></div>
<div class="ttc" id="struct_f_p_smanager_html_aa7716779b7cc57dee24c15d7c5d62e55"><div class="ttname"><a href="struct_f_p_smanager.html#aa7716779b7cc57dee24c15d7c5d62e55">FPSmanager::lastticks</a></div><div class="ttdeci">Uint32 lastticks</div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00066">SDL2_framerate.h:66</a></div></div>
<div class="ttc" id="struct_f_p_smanager_html"><div class="ttname"><a href="struct_f_p_smanager.html">FPSmanager</a></div><div class="ttdoc">Structure holding the state and timing information of the framerate controller. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00062">SDL2_framerate.h:62</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_afce13fa3dd37130deb4975d8b230c3ba"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#afce13fa3dd37130deb4975d8b230c3ba">SDL_framerateDelay</a></div><div class="ttdeci">Uint32 SDL_framerateDelay(FPSmanager *manager)</div><div class="ttdoc">Delay execution to maintain a constant framerate and calculate fps. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00146">SDL2_framerate.c:146</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8h_html_aeaeac0f0b439344496e29abf60904d58"><div class="ttname"><a href="_s_d_l2__framerate_8h.html#aeaeac0f0b439344496e29abf60904d58">FPS_UPPER_LIMIT</a></div><div class="ttdeci">#define FPS_UPPER_LIMIT</div><div class="ttdoc">Highest possible rate supported by framerate controller in Hz (1/s). </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00047">SDL2_framerate.h:47</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8h_html"><div class="ttname"><a href="_s_d_l2__framerate_8h.html">SDL2_framerate.h</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_a3bed31ab61648f7d69c8f47c90161cfe"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#a3bed31ab61648f7d69c8f47c90161cfe">_getTicks</a></div><div class="ttdeci">Uint32 _getTicks()</div><div class="ttdoc">Internal wrapper to SDL_GetTicks that ensures a non-zero return value. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00037">SDL2_framerate.c:37</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8h_html_ab3ac02e6acb348129a019b9f20aa5c90"><div class="ttname"><a href="_s_d_l2__framerate_8h.html#ab3ac02e6acb348129a019b9f20aa5c90">FPS_DEFAULT</a></div><div class="ttdeci">#define FPS_DEFAULT</div><div class="ttdoc">Default rate of framerate controller in Hz (1/s). </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00057">SDL2_framerate.h:57</a></div></div>
<div class="ttc" id="struct_f_p_smanager_html_a48695d55d40900a197688bb773b9d431"><div class="ttname"><a href="struct_f_p_smanager.html#a48695d55d40900a197688bb773b9d431">FPSmanager::rateticks</a></div><div class="ttdeci">float rateticks</div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00064">SDL2_framerate.h:64</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_a444ebaaaa6b1ceeafa921562bdab1a44"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#a444ebaaaa6b1ceeafa921562bdab1a44">SDL_initFramerate</a></div><div class="ttdeci">void SDL_initFramerate(FPSmanager *manager)</div><div class="ttdoc">Initialize the framerate manager. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00062">SDL2_framerate.c:62</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_a575bb511d6f817ad846a788cbd08ae91"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#a575bb511d6f817ad846a788cbd08ae91">SDL_getFramerate</a></div><div class="ttdeci">int SDL_getFramerate(FPSmanager *manager)</div><div class="ttdoc">Return the current target framerate in Hz. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00107">SDL2_framerate.c:107</a></div></div>
<div class="ttc" id="struct_f_p_smanager_html_ad853f9c03e200a77fd897c1ea3aec43d"><div class="ttname"><a href="struct_f_p_smanager.html#ad853f9c03e200a77fd897c1ea3aec43d">FPSmanager::baseticks</a></div><div class="ttdeci">Uint32 baseticks</div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00065">SDL2_framerate.h:65</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_afad4b503cf9719daced45fa4d9653d72"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#afad4b503cf9719daced45fa4d9653d72">SDL_setFramerate</a></div><div class="ttdeci">int SDL_setFramerate(FPSmanager *manager, Uint32 rate)</div><div class="ttdoc">Set the framerate in Hz. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00086">SDL2_framerate.c:86</a></div></div>
<div class="ttc" id="struct_f_p_smanager_html_af7eec7342fd8eb48d5f49ba7f5b91853"><div class="ttname"><a href="struct_f_p_smanager.html#af7eec7342fd8eb48d5f49ba7f5b91853">FPSmanager::rate</a></div><div class="ttdeci">Uint32 rate</div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00067">SDL2_framerate.h:67</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8c_html_a96b13e26f8436222e866904a592a6eec"><div class="ttname"><a href="_s_d_l2__framerate_8c.html#a96b13e26f8436222e866904a592a6eec">SDL_getFramecount</a></div><div class="ttdeci">int SDL_getFramecount(FPSmanager *manager)</div><div class="ttdoc">Return the current framecount. </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8c_source.html#l00126">SDL2_framerate.c:126</a></div></div>
<div class="ttc" id="_s_d_l2__framerate_8h_html_a9555dceeaaffdd2669c991e6a300085b"><div class="ttname"><a href="_s_d_l2__framerate_8h.html#a9555dceeaaffdd2669c991e6a300085b">FPS_LOWER_LIMIT</a></div><div class="ttdeci">#define FPS_LOWER_LIMIT</div><div class="ttdoc">Lowest possible rate supported by framerate controller in Hz (1/s). </div><div class="ttdef"><b>Definition:</b> <a href="_s_d_l2__framerate_8h_source.html#l00052">SDL2_framerate.h:52</a></div></div>
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