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Timo Lang
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<a href="tft_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>&#160;<span class="comment">/**************************************************************************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">* Project: discoverpixy</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">* Website: https://github.com/t-moe/discoverpixy</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">* Authors: Aaron Schmocker, Timo Lang</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">* Institution: BFH Bern University of Applied Sciences</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">* File: common/tft/tft.c</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">* Version History:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">* Date Autor Email SHA Changes</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">* 2015-04-03 timolang@gmail.com 51089aa Refactored Project Structure for use with emulator</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">* 2015-04-03 timolang@gmail.com 1f2af9f Added more tft functions to common and emulator. Fixed eventloop.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">* 2015-04-03 timolang@gmail.com 1aa9194 Fixed Drawing of rects in Emulator. Got frames from pixy to emulator. Slooooow.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">* 2015-04-27 aaron@duckpond.ch aed90ef Drawcircle added (emulator)</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">* 2015-04-27 timolang@gmail.com e249fb2 Added font support</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment">* 2015-04-30 timolang@gmail.com 76ea9d8 Added num up down support.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment">* 2015-05-10 timolang@gmail.com b6ab7c8 Fixed compiler warning in tft and screen module.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">* 2015-05-15 timolang@gmail.com b08a897 Added tft method to draw a bmp from filesystem. Added another font to emulator.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment">* 2015-05-17 timolang@gmail.com 2d46336 Improved comments in implementation of button, checkbox, numupdown, tft, touch and screen modules/submodules.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment">**************************************************************************************************************************************/</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tft_8h.html">tft.h</a>&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ll__tft_8h.html">ll_tft.h</a>&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;stdarg.h&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="filesystem_8h.html">filesystem.h</a>&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment">/* The idea is as follows:</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> * Most of the tft_* functions can be forwarded to the lowlevel implementation.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> * The exceptions are commented below.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment"> * Make sure to have a look at the doxygen comments for the lowlevel functions and for the tft_* functions</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="comment">/* Possible improvements:</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="comment"> * For formatted printing implement putchar, instead of writing into a buffer and drawing that buffer afterwards</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="group__tft.html#gaaaed6a011ff4ec08c6a1a264e8396215"> 39</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="group__tft.html#gaaaed6a011ff4ec08c6a1a264e8396215">tft_init</a>()</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;{</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordflow">return</span> <a class="code" href="group__ll__tft.html#gac974fbb4327f3b0abaac5c33c07337c7">ll_tft_init</a>();</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;}</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="group__tft.html#ga6a2e3b3878ae5eea184d4c3ffe091b78"> 45</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#ga6a2e3b3878ae5eea184d4c3ffe091b78">tft_clear</a>(uint16_t color)</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;{</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <a class="code" href="group__ll__tft.html#ga74b49691a101619b939c085ff607a582">ll_tft_clear</a>(color);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;}</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="group__tft.html#ga5022f91ea04919e698a79c0c309ba6f8"> 50</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#ga5022f91ea04919e698a79c0c309ba6f8">tft_draw_line</a>(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;{</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <a class="code" href="group__ll__tft.html#ga2560737bf118275e6ce728f6dce1e83f">ll_tft_draw_line</a>(x1, y1, x2, y2, color);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;}</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="group__tft.html#ga82f9b498c57296310f0dfdaa3d7928ac"> 56</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#ga82f9b498c57296310f0dfdaa3d7928ac">tft_draw_pixel</a>(uint16_t x, uint16_t y, uint16_t color)</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;{</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="code" href="group__ll__tft.html#gad219f39d734f774eb4f5390b5f9f8309">ll_tft_draw_pixel</a>(x, y, color);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;}</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="group__tft.html#gab5f517d9bf0420872e78b85b37ff30a5"> 61</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#gab5f517d9bf0420872e78b85b37ff30a5">tft_draw_rectangle</a>(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;{</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="comment">//could be implemented with 4 lines instead of introducing a ll func</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <a class="code" href="group__ll__tft.html#ga3a0826993525194c868cc435738dd31e">ll_tft_draw_rectangle</a>(x1, y1, x2, y2, color);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;}</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="group__tft.html#ga781855ab93845ce326dfca7c099259c6"> 67</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#ga781855ab93845ce326dfca7c099259c6">tft_fill_rectangle</a>(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;{</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <a class="code" href="group__ll__tft.html#ga0111ae5623214d3d466b2b24598f303f">ll_tft_fill_rectangle</a>(x1, y1, x2, y2, color);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;}</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="group__tft.html#gab8914c547e697f173306d929ca56988f"> 72</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#gab8914c547e697f173306d929ca56988f">tft_draw_bitmap_unscaled</a>(uint16_t x, uint16_t y, uint16_t width, uint16_t height, <span class="keyword">const</span> uint16_t* dat)</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;{</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <a class="code" href="group__ll__tft.html#gafaf8d5f70b46fcbdd3c700a030f14b61">ll_tft_draw_bitmap_unscaled</a>(x, y, width, height, dat);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;}</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="group__tft.html#gab0639f829418b928bf37fdcf50d71b8d"> 77</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#gab0639f829418b928bf37fdcf50d71b8d">tft_draw_circle</a>(uint16_t x, uint16_t y, uint16_t r, uint16_t color)</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;{</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <a class="code" href="group__ll__tft.html#gaa2d2a94a228ad5fc8364a642f32b680d">ll_tft_draw_circle</a>(x, y, r, color);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;}</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="group__tft.html#gab5aff6398f64c33324ee6bb423979738"> 82</a></span>&#160;uint8_t <a class="code" href="group__tft.html#gab5aff6398f64c33324ee6bb423979738">tft_num_fonts</a>()</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;{</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">return</span> <a class="code" href="group__ll__tft.html#gaf4b0b73ab01e1dc300ae65dc0ac029b6">ll_tft_num_fonts</a>();</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;}</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="group__tft.html#gaea9f6a88da91949befe52cd4ed000c5d"> 87</a></span>&#160;uint8_t <a class="code" href="group__tft.html#gaea9f6a88da91949befe52cd4ed000c5d">tft_font_height</a>(uint8_t fontnum)</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;{</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">return</span> <a class="code" href="group__ll__tft.html#ga8dbc8b40717be527e6f1c5a2cfc72aeb">ll_tft_font_height</a>(fontnum);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;}</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="group__tft.html#ga7e99287b1e6b844f6867c63400959ffc"> 92</a></span>&#160;uint8_t <a class="code" href="group__tft.html#ga7e99287b1e6b844f6867c63400959ffc">tft_font_width</a>(uint8_t fontnum)</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;{</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordflow">return</span> <a class="code" href="group__ll__tft.html#ga3639ec94b2239cc02b3c47a14f6637a3">ll_tft_font_width</a>(fontnum);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;}</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="comment">//Print line can be done with multiple calls to draw_char</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="group__tft.html#gabf54943131990b366ce6875a0e1925f6"> 98</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#gabf54943131990b366ce6875a0e1925f6">tft_print_line</a>(uint16_t x, uint16_t y, uint16_t color, uint16_t bgcolor, uint8_t font, <span class="keyword">const</span> <span class="keywordtype">char</span>* text)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;{</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">if</span> (font &gt;= <a class="code" href="group__ll__tft.html#gaf4b0b73ab01e1dc300ae65dc0ac029b6">ll_tft_num_fonts</a>()) {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordflow">return</span>; <span class="comment">//invalid font index</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; strlen(text); i++) { <span class="comment">//for each char in the line</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <a class="code" href="group__ll__tft.html#ga408570a2b70769255924792ce189f2c1">ll_tft_draw_char</a>(x, y, color, bgcolor, font, text[i]); <span class="comment">//draw the char</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; x += <a class="code" href="group__ll__tft.html#ga3639ec94b2239cc02b3c47a14f6637a3">ll_tft_font_width</a>(font); <span class="comment">//and increase the x position</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;}</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;<span class="comment">//Printing a formatted line can be done by printing the line in a buffer using &quot;sprintf&quot; and then calling print_line</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="group__tft.html#ga765c521ee1b01ab0c34449936500291b"> 111</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__tft.html#ga765c521ee1b01ab0c34449936500291b">tft_print_formatted</a>(uint16_t x, uint16_t y, uint16_t color, uint16_t bgcolor, uint8_t font, <span class="keyword">const</span> <span class="keywordtype">char</span>* format, ...)</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;{</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keyword">static</span> <span class="keywordtype">char</span> buffer[128]; <span class="comment">//buffer to save the formatted text into</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="comment">//Since we have variable arguments, we need to forward them. We have to use vsprintf instead of sprintf for that.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; va_list args;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; va_start(args, format); <span class="comment">//start the varg-list</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; vsprintf(buffer, format, args); <span class="comment">//let vsprintf render the formatted string</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <a class="code" href="group__tft.html#gabf54943131990b366ce6875a0e1925f6">tft_print_line</a>(x, y, color, bgcolor, font, buffer); <span class="comment">//print the string as normal text</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; va_end(args); <span class="comment">//end the varg-list</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;}</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;</div>
<div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="group__tft.html#gab2955e780414d138b9f90dc6a533b6b8"> 123</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="group__tft.html#gab2955e780414d138b9f90dc6a533b6b8">tft_draw_bitmap_file_unscaled</a>(uint16_t x, uint16_t y, <span class="keyword">const</span> <span class="keywordtype">char</span>* filename)</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;{</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="comment">//This method reads a .bmp file from the filesystem and tries to draw it.</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="comment">//Note: The bmp implementation is not complete, it has some limitations and it makes assumptions. See doxygen comment for this method.</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">//Source Copied and adapted from: http://stackoverflow.com/a/17040962/2606757</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <a class="code" href="struct_f_i_l_e___h_a_n_d_l_e.html">FILE_HANDLE</a>* file = <a class="code" href="group__filesystem.html#gabd043128e80a4f0573b1360d921b046c">filesystem_file_open</a>(filename); <span class="comment">//try to open the file</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">if</span> (file == NULL) { <span class="comment">//file opening failed</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> info[54];</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="group__filesystem.html#ga9e7f715d0000e7b99e2b4732416a0221">filesystem_file_read</a>(file, info, 54) != <a class="code" href="group__filesystem.html#ggab08f51089a5ddbb470a1a36a9478dda4ab16a72615f8613168ea14797c243fdfd">F_OK</a>) { <span class="comment">//try to read the 54 byte header</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <a class="code" href="group__filesystem.html#ga0e6cc31bf4c889249e13254306994c2f">filesystem_file_close</a>(file);</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">//reading the header failed</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; }</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// extract image height and width from header</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; uint32_t width = *(uint32_t*)&amp;info[18]; <span class="comment">//width in pixel</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; uint32_t height = *(uint32_t*)&amp;info[22]; <span class="comment">//height in pixel</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; uint16_t depth = *(uint16_t*)&amp;info[28]; <span class="comment">//bit&#39;s per pixel (color depth)</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; depth /= 8; <span class="comment">//we want the number of bytes per pixel</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <a class="code" href="group__filesystem.html#gac447af479c334caa207d6c279571d8a2">filesystem_file_seek</a>(file, *(uint32_t*)&amp;info[10]); <span class="comment">//seek to the place where img data begins</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; uint32_t row_padded = (width * depth + 3) &amp; (~3); <span class="comment">//row size must be aligned to 4 bytes</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data [row_padded]; <span class="comment">//allocate space for one row (incl. padding)</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; height; i++) { <span class="comment">//for each row</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <a class="code" href="group__filesystem.html#ga9e7f715d0000e7b99e2b4732416a0221">filesystem_file_read</a>(file, data, row_padded); <span class="comment">//read row into buffer</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; width * depth; j += depth) { <span class="comment">//for each pixel</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> a, r, g, b;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordflow">if</span> (depth == 4) { <span class="comment">//a,r,g,b 8bit each</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; a = data[j];</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; r = data[j + 1];</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; g = data[j + 2];</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; b = data[j + 3];</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 3) { <span class="comment">// b,g,r, 8bit each</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; a = 255;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; r = data[j + 2];</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; g = data[j + 1];</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; b = data[j];</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; }</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordflow">if</span> (a != 0) {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="comment">//bmp&#39;s are stored &quot;bottom-up&quot;, so we start drawing at the bottom</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <a class="code" href="group__tft.html#ga82f9b498c57296310f0dfdaa3d7928ac">tft_draw_pixel</a>(x + j / depth, y + height - 1 - i, <a class="code" href="group__tft.html#ga4a118ad3ee36468a3fa616977a64864e">RGB</a>(r, g, b));</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; }</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; }</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <a class="code" href="group__filesystem.html#ga0e6cc31bf4c889249e13254306994c2f">filesystem_file_close</a>(file);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;}</div>
<div class="ttc" id="group__tft_html_gaea9f6a88da91949befe52cd4ed000c5d"><div class="ttname"><a href="group__tft.html#gaea9f6a88da91949befe52cd4ed000c5d">tft_font_height</a></div><div class="ttdeci">uint8_t tft_font_height(uint8_t fontnum)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00087">tft.c:87</a></div></div>
<div class="ttc" id="group__tft_html_ga7e99287b1e6b844f6867c63400959ffc"><div class="ttname"><a href="group__tft.html#ga7e99287b1e6b844f6867c63400959ffc">tft_font_width</a></div><div class="ttdeci">uint8_t tft_font_width(uint8_t fontnum)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00092">tft.c:92</a></div></div>
<div class="ttc" id="group__filesystem_html_gac447af479c334caa207d6c279571d8a2"><div class="ttname"><a href="group__filesystem.html#gac447af479c334caa207d6c279571d8a2">filesystem_file_seek</a></div><div class="ttdeci">FILE_STATUS filesystem_file_seek(FILE_HANDLE *handle, uint32_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8c_source.html#l00043">filesystem.c:43</a></div></div>
<div class="ttc" id="group__tft_html_gab0639f829418b928bf37fdcf50d71b8d"><div class="ttname"><a href="group__tft.html#gab0639f829418b928bf37fdcf50d71b8d">tft_draw_circle</a></div><div class="ttdeci">void tft_draw_circle(uint16_t x, uint16_t y, uint16_t r, uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00077">tft.c:77</a></div></div>
<div class="ttc" id="group__tft_html_ga5022f91ea04919e698a79c0c309ba6f8"><div class="ttname"><a href="group__tft.html#ga5022f91ea04919e698a79c0c309ba6f8">tft_draw_line</a></div><div class="ttdeci">void tft_draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00050">tft.c:50</a></div></div>
<div class="ttc" id="group__ll__tft_html_gaa2d2a94a228ad5fc8364a642f32b680d"><div class="ttname"><a href="group__ll__tft.html#gaa2d2a94a228ad5fc8364a642f32b680d">ll_tft_draw_circle</a></div><div class="ttdeci">void ll_tft_draw_circle(uint16_t x, uint16_t y, uint16_t r, uint16_t color)</div></div>
<div class="ttc" id="group__tft_html_ga765c521ee1b01ab0c34449936500291b"><div class="ttname"><a href="group__tft.html#ga765c521ee1b01ab0c34449936500291b">tft_print_formatted</a></div><div class="ttdeci">void tft_print_formatted(uint16_t x, uint16_t y, uint16_t color, uint16_t bgcolor, uint8_t font, const char *format,...)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00111">tft.c:111</a></div></div>
<div class="ttc" id="group__tft_html_gabf54943131990b366ce6875a0e1925f6"><div class="ttname"><a href="group__tft.html#gabf54943131990b366ce6875a0e1925f6">tft_print_line</a></div><div class="ttdeci">void tft_print_line(uint16_t x, uint16_t y, uint16_t color, uint16_t bgcolor, uint8_t font, const char *text)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00098">tft.c:98</a></div></div>
<div class="ttc" id="group__tft_html_gab5aff6398f64c33324ee6bb423979738"><div class="ttname"><a href="group__tft.html#gab5aff6398f64c33324ee6bb423979738">tft_num_fonts</a></div><div class="ttdeci">uint8_t tft_num_fonts()</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00082">tft.c:82</a></div></div>
<div class="ttc" id="group__tft_html_ga4a118ad3ee36468a3fa616977a64864e"><div class="ttname"><a href="group__tft.html#ga4a118ad3ee36468a3fa616977a64864e">RGB</a></div><div class="ttdeci">#define RGB(r, g, b)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8h_source.html#l00048">tft.h:48</a></div></div>
<div class="ttc" id="struct_f_i_l_e___h_a_n_d_l_e_html"><div class="ttname"><a href="struct_f_i_l_e___h_a_n_d_l_e.html">FILE_HANDLE</a></div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8h_source.html#l00081">filesystem.h:81</a></div></div>
<div class="ttc" id="group__ll__tft_html_ga3639ec94b2239cc02b3c47a14f6637a3"><div class="ttname"><a href="group__ll__tft.html#ga3639ec94b2239cc02b3c47a14f6637a3">ll_tft_font_width</a></div><div class="ttdeci">uint8_t ll_tft_font_width(uint8_t fontnum)</div></div>
<div class="ttc" id="group__tft_html_gab8914c547e697f173306d929ca56988f"><div class="ttname"><a href="group__tft.html#gab8914c547e697f173306d929ca56988f">tft_draw_bitmap_unscaled</a></div><div class="ttdeci">void tft_draw_bitmap_unscaled(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint16_t *dat)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00072">tft.c:72</a></div></div>
<div class="ttc" id="group__filesystem_html_gabd043128e80a4f0573b1360d921b046c"><div class="ttname"><a href="group__filesystem.html#gabd043128e80a4f0573b1360d921b046c">filesystem_file_open</a></div><div class="ttdeci">FILE_HANDLE * filesystem_file_open(const char *filename)</div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8c_source.html#l00033">filesystem.c:33</a></div></div>
<div class="ttc" id="group__filesystem_html_ga0e6cc31bf4c889249e13254306994c2f"><div class="ttname"><a href="group__filesystem.html#ga0e6cc31bf4c889249e13254306994c2f">filesystem_file_close</a></div><div class="ttdeci">void filesystem_file_close(FILE_HANDLE *handle)</div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8c_source.html#l00038">filesystem.c:38</a></div></div>
<div class="ttc" id="group__tft_html_ga82f9b498c57296310f0dfdaa3d7928ac"><div class="ttname"><a href="group__tft.html#ga82f9b498c57296310f0dfdaa3d7928ac">tft_draw_pixel</a></div><div class="ttdeci">void tft_draw_pixel(uint16_t x, uint16_t y, uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00056">tft.c:56</a></div></div>
<div class="ttc" id="group__ll__tft_html_gaf4b0b73ab01e1dc300ae65dc0ac029b6"><div class="ttname"><a href="group__ll__tft.html#gaf4b0b73ab01e1dc300ae65dc0ac029b6">ll_tft_num_fonts</a></div><div class="ttdeci">uint8_t ll_tft_num_fonts()</div></div>
<div class="ttc" id="group__tft_html_gab2955e780414d138b9f90dc6a533b6b8"><div class="ttname"><a href="group__tft.html#gab2955e780414d138b9f90dc6a533b6b8">tft_draw_bitmap_file_unscaled</a></div><div class="ttdeci">bool tft_draw_bitmap_file_unscaled(uint16_t x, uint16_t y, const char *filename)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00123">tft.c:123</a></div></div>
<div class="ttc" id="tft_8h_html"><div class="ttname"><a href="tft_8h.html">tft.h</a></div></div>
<div class="ttc" id="group__ll__tft_html_gad219f39d734f774eb4f5390b5f9f8309"><div class="ttname"><a href="group__ll__tft.html#gad219f39d734f774eb4f5390b5f9f8309">ll_tft_draw_pixel</a></div><div class="ttdeci">void ll_tft_draw_pixel(uint16_t x, uint16_t y, uint16_t color)</div></div>
<div class="ttc" id="group__ll__tft_html_ga408570a2b70769255924792ce189f2c1"><div class="ttname"><a href="group__ll__tft.html#ga408570a2b70769255924792ce189f2c1">ll_tft_draw_char</a></div><div class="ttdeci">void ll_tft_draw_char(uint16_t x, uint16_t y, uint16_t color, uint16_t bgcolor, uint8_t font, char c)</div></div>
<div class="ttc" id="group__tft_html_ga6a2e3b3878ae5eea184d4c3ffe091b78"><div class="ttname"><a href="group__tft.html#ga6a2e3b3878ae5eea184d4c3ffe091b78">tft_clear</a></div><div class="ttdeci">void tft_clear(uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00045">tft.c:45</a></div></div>
<div class="ttc" id="filesystem_8h_html"><div class="ttname"><a href="filesystem_8h.html">filesystem.h</a></div></div>
<div class="ttc" id="group__ll__tft_html_ga8dbc8b40717be527e6f1c5a2cfc72aeb"><div class="ttname"><a href="group__ll__tft.html#ga8dbc8b40717be527e6f1c5a2cfc72aeb">ll_tft_font_height</a></div><div class="ttdeci">uint8_t ll_tft_font_height(uint8_t fontnum)</div></div>
<div class="ttc" id="group__tft_html_ga781855ab93845ce326dfca7c099259c6"><div class="ttname"><a href="group__tft.html#ga781855ab93845ce326dfca7c099259c6">tft_fill_rectangle</a></div><div class="ttdeci">void tft_fill_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00067">tft.c:67</a></div></div>
<div class="ttc" id="group__ll__tft_html_ga2560737bf118275e6ce728f6dce1e83f"><div class="ttname"><a href="group__ll__tft.html#ga2560737bf118275e6ce728f6dce1e83f">ll_tft_draw_line</a></div><div class="ttdeci">void ll_tft_draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div></div>
<div class="ttc" id="group__ll__tft_html_ga0111ae5623214d3d466b2b24598f303f"><div class="ttname"><a href="group__ll__tft.html#ga0111ae5623214d3d466b2b24598f303f">ll_tft_fill_rectangle</a></div><div class="ttdeci">void ll_tft_fill_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div></div>
<div class="ttc" id="group__ll__tft_html_gac974fbb4327f3b0abaac5c33c07337c7"><div class="ttname"><a href="group__ll__tft.html#gac974fbb4327f3b0abaac5c33c07337c7">ll_tft_init</a></div><div class="ttdeci">bool ll_tft_init()</div></div>
<div class="ttc" id="group__filesystem_html_ggab08f51089a5ddbb470a1a36a9478dda4ab16a72615f8613168ea14797c243fdfd"><div class="ttname"><a href="group__filesystem.html#ggab08f51089a5ddbb470a1a36a9478dda4ab16a72615f8613168ea14797c243fdfd">F_OK</a></div><div class="ttdoc">Everything ok. </div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8h_source.html#l00091">filesystem.h:91</a></div></div>
<div class="ttc" id="group__tft_html_gab5f517d9bf0420872e78b85b37ff30a5"><div class="ttname"><a href="group__tft.html#gab5f517d9bf0420872e78b85b37ff30a5">tft_draw_rectangle</a></div><div class="ttdeci">void tft_draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00061">tft.c:61</a></div></div>
<div class="ttc" id="ll__tft_8h_html"><div class="ttname"><a href="ll__tft_8h.html">ll_tft.h</a></div></div>
<div class="ttc" id="group__ll__tft_html_ga74b49691a101619b939c085ff607a582"><div class="ttname"><a href="group__ll__tft.html#ga74b49691a101619b939c085ff607a582">ll_tft_clear</a></div><div class="ttdeci">void ll_tft_clear(uint16_t color)</div></div>
<div class="ttc" id="group__tft_html_gaaaed6a011ff4ec08c6a1a264e8396215"><div class="ttname"><a href="group__tft.html#gaaaed6a011ff4ec08c6a1a264e8396215">tft_init</a></div><div class="ttdeci">bool tft_init()</div><div class="ttdef"><b>Definition:</b> <a href="tft_8c_source.html#l00039">tft.c:39</a></div></div>
<div class="ttc" id="group__ll__tft_html_ga3a0826993525194c868cc435738dd31e"><div class="ttname"><a href="group__ll__tft.html#ga3a0826993525194c868cc435738dd31e">ll_tft_draw_rectangle</a></div><div class="ttdeci">void ll_tft_draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)</div></div>
<div class="ttc" id="group__filesystem_html_ga9e7f715d0000e7b99e2b4732416a0221"><div class="ttname"><a href="group__filesystem.html#ga9e7f715d0000e7b99e2b4732416a0221">filesystem_file_read</a></div><div class="ttdeci">FILE_STATUS filesystem_file_read(FILE_HANDLE *handle, uint8_t *buf, uint32_t size)</div><div class="ttdef"><b>Definition:</b> <a href="filesystem_8c_source.html#l00048">filesystem.c:48</a></div></div>
<div class="ttc" id="group__ll__tft_html_gafaf8d5f70b46fcbdd3c700a030f14b61"><div class="ttname"><a href="group__ll__tft.html#gafaf8d5f70b46fcbdd3c700a030f14b61">ll_tft_draw_bitmap_unscaled</a></div><div class="ttdeci">void ll_tft_draw_bitmap_unscaled(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint16_t *dat)</div></div>
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