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<title>Graphic Equalizer: C:/Project Marcel & Oliver/Graphic_Equalizer/src/eventhandler.hcc Source File</title>
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<a class="el" href="dir_000000.html">C:</a> / <a class="el" href="dir_000001.html">Project Marcel & Oliver</a> / <a class="el" href="dir_000002.html">Graphic_Equalizer</a> / <a class="el" href="dir_000004.html">src</a></div>
<h1>eventhandler.hcc</h1><a href="eventhandler_8hcc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
00021 <span class="comment">/******** System Includes *************/</span>
00022 <span class="preprocessor">#include <stdlib.hch></span>
00023
00024 <span class="preprocessor">#include "pal_master.hch"</span>
00025
00026 <span class="comment">/******** Application Includes ********/</span>
00027 <span class="preprocessor">#include "<a class="code" href="configuration_8hch.html">configuration.hch</a>"</span>
00028 <span class="preprocessor">#include "<a class="code" href="audio_8hch.html">audio.hch</a>"</span>
00029 <span class="preprocessor">#include "<a class="code" href="mouse__shared_8hch.html">mouse_shared.hch</a>"</span>
00030 <span class="preprocessor">#include "<a class="code" href="eventhandler__shared_8hch.html">eventhandler_shared.hch</a>"</span>
00031 <span class="preprocessor">#include "<a class="code" href="eventhandler_8hch.html">eventhandler.hch</a>"</span>
00032 <span class="preprocessor">#include "<a class="code" href="events_8hch.html">events.hch</a>"</span>
00033 <span class="preprocessor">#include "<a class="code" href="display__shared_8hch.html">display_shared.hch</a>"</span>
00034 <span class="preprocessor">#include "<a class="code" href="display_8hch.html">display.hch</a>"</span>
00035
00036 <span class="preprocessor">#if HAVE_DEBUG</span>
00037 <span class="preprocessor"></span><span class="preprocessor"> #include "debug.hch"</span>
00038 <span class="preprocessor">#endif</span>
00039 <span class="preprocessor"></span>
00040
00041
00042 <span class="comment">/*</span>
00043 <span class="comment"> */</span>
00044 <span class="keyword">extern</span> chan <span class="keywordtype">unsigned</span> 1 maskupdate_notification;
00045
00046
00047
00048 <span class="keyword">static</span> rom <span class="keywordtype">unsigned</span> 3 equalizer_mode_table[5] = {EQUALIZERMODE_CONVEX_FULL, EQUALIZERMODE_CONVEX_HALF, EQUALIZERMODE_PRECISE, EQUALIZERMODE_CONCAVE_HALF, EQUALIZERMODE_CONCAVE_FULL};
00049
00050
00051
<a name="l00063"></a><a class="code" href="eventhandler_8hcc.html#a3">00063</a> <span class="keywordtype">void</span> <a class="code" href="eventhandler_8hcc.html#a3">eventhandler_main</a>(audiodata_t *audiodata, events_t *events, mousedata_t *mousedata) {
00064 mpram {
00065 ram <span class="keywordtype">unsigned</span> 4 write[768];
00066 rom <span class="keywordtype">unsigned</span> 4 read[768];
00067 } equalizer_levels with { block = <span class="stringliteral">"BlockRAM"</span>};
00068
00069 <span class="keywordtype">unsigned</span> 10 preset_offset;
00070 <span class="keywordtype">unsigned</span> 10 reference_point;
00071 <span class="keywordtype">unsigned</span> 5 volume_left;
00072 <span class="keywordtype">unsigned</span> 4 index_offset;
00073 <span class="keywordtype">unsigned</span> 1 newmaskupdate;
00074
00075 <span class="comment">/*</span>
00076 <span class="comment"> * Initialize our equalizer display pointers here, as they don't point</span>
00077 <span class="comment"> * anywhere otherwise.</span>
00078 <span class="comment"> */</span>
00079
00080 <span class="keywordflow">while</span> (TRUE) {
00081 maskupdate_notification ? newmaskupdate;
00082
00083 <span class="comment">/*</span>
00084 <span class="comment"> * First we determine what mousestate we currently have. Then</span>
00085 <span class="comment"> * we check where we are to decide what to do.</span>
00086 <span class="comment"> */</span>
00087 <span class="keywordflow">switch</span> (mousedata->state) {
00088 <span class="keywordflow">case</span> MOUSE_STATE_ON_PRESS:
00089 <span class="comment">/*</span>
00090 <span class="comment"> * If we are displaying the graphic visual,</span>
00091 <span class="comment"> * any press returns to the application.</span>
00092 <span class="comment"> */</span>
00093 <span class="keywordflow">if</span> (MODE_GRAPH == events->mode) {
00094 events->mode = MODE_SKIN;
00095 events->mask = 0;
00096 } <span class="keywordflow">else</span> {
00097 delay;
00098 }
00099
00100 <span class="comment">/*</span>
00101 <span class="comment"> */</span>
00102 <span class="keywordflow">if</span> (BUTTON_MODE == events->mask) {
00103 <span class="keywordflow">if</span> (MODE_GRAPH == events->mode) {
00104 events->mode = MODE_SKIN;
00105 } <span class="keywordflow">else</span> {
00106 events->mode = MODE_GRAPH;
00107 }
00108 } <span class="keywordflow">else</span> {
00109 delay;
00110 }
00111
00112 <span class="comment">/*</span>
00113 <span class="comment"> * If the current mask equals the help button</span>
00114 <span class="comment"> * we set display mode to help.</span>
00115 <span class="comment"> */</span>
00116 <span class="keywordflow">if</span> (BUTTON_HELP == events->mask) {
00117 <span class="comment">/*</span>
00118 <span class="comment"> * Change the mode to help if it's</span>
00119 <span class="comment"> * currently not set, otherwise go back</span>
00120 <span class="comment"> * to skin mode.</span>
00121 <span class="comment"> */</span>
00122 <span class="keywordflow">if</span> (MODE_HELP == events->mode) {
00123 events->mode = MODE_SKIN;
00124 } <span class="keywordflow">else</span> {
00125 events->mode = MODE_HELP;
00126 print_string(<span class="stringliteral">"going to help"</span>);print_eol();
00127 }
00128 } <span class="keywordflow">else</span> {
00129 delay;
00130 }
00131
00132 <span class="comment">/*</span>
00133 <span class="comment"> * The Preset buttons span from 1 to 6 so if</span>
00134 <span class="comment"> * the mask one of those, we'll change the</span>
00135 <span class="comment"> * pointer to point to the current preset.</span>
00136 <span class="comment"> */</span>
00137 <span class="keywordflow">if</span> ((BUTTON_PRESET_1 <= events->mask) && (events->mask <= BUTTON_PRESET_6)) {
00138 <span class="comment">/*</span>
00139 <span class="comment"> * The active preset is determined by</span>
00140 <span class="comment"> * the mask minus an offset. Hence</span>
00141 <span class="comment"> * ranging our active preset from 0 to</span>
00142 <span class="comment"> * 6.</span>
00143 <span class="comment"> */</span>
00144 events->active_preset = 0 @ (events->mask -BUTTON_PRESET_1);
00145 <span class="comment">/*</span>
00146 <span class="comment"> * Each equalizer is 128 bands wide,</span>
00147 <span class="comment"> * thus we need to add 128 * the preset</span>
00148 <span class="comment"> * for each different preset. This</span>
00149 <span class="comment"> * offset is calculated here.</span>
00150 <span class="comment"> */</span>
00151 preset_offset = events->active_preset << 7;
00152 <span class="comment">/*</span>
00153 <span class="comment"> * We set the pointer to the active</span>
00154 <span class="comment"> * part of the array by using the</span>
00155 <span class="comment"> * preset offset as our index. Hence</span>
00156 <span class="comment"> * depending on the selected preset</span>
00157 <span class="comment"> * we point to 0, 128, 256, 384, 512</span>
00158 <span class="comment"> * or 640.</span>
00159 <span class="comment"> */</span>
00160 audiodata->equalizer_levels_ptr = &equalizer_levels.read[preset_offset];
00161 <span class="comment">/*</span>
00162 <span class="comment"> * Finally update the equalizer bars</span>
00163 <span class="comment"> * that are drawn by the display.</span>
00164 <span class="comment"> */</span>
00165 <a class="code" href="display_8hcc.html#a4">reload_equalizer</a>(events, equalizer_levels.write, preset_offset);
00166 } <span class="keywordflow">else</span> {
00167 delay;
00168 }
00169
00170 <span class="keywordflow">if</span> ((BUTTON_CONVEX_FULL <= events->mask) && (events->mask <= BUTTON_CONCAVE_FULL)) {
00171 events->equalizer_mode = (events->mask -BUTTON_CONVEX_FULL) <- 3;
00172 } <span class="keywordflow">else</span> {
00173 delay;
00174 }
00175
00176 <span class="comment">/*</span>
00177 <span class="comment"> * If the demo button was pressed load the</span>
00178 <span class="comment"> * demo preset values into the presets.</span>
00179 <span class="comment"> */</span>
00180 <span class="keywordflow">if</span> (BUTTON_DEMO == events->mask) {
00181 <a class="code" href="events_8hcc.html#a2">load_preset</a>(ADDRESS_PRESET_DEMO_START, &equalizer_levels.write[0]);
00182 <a class="code" href="display_8hcc.html#a4">reload_equalizer</a>(events, equalizer_levels.write, preset_offset);
00183 }
00184
00185 <span class="comment">/*</span>
00186 <span class="comment"> * If the reset button was pressed load the</span>
00187 <span class="comment"> * reset values into the presets.</span>
00188 <span class="comment"> */</span>
00189 <span class="keywordflow">if</span> (BUTTON_RESET == events->mask) {
00190 <a class="code" href="events_8hcc.html#a2">load_preset</a>(ADDRESS_PRESET_RESET_START, &equalizer_levels.write[0]);
00191 <a class="code" href="display_8hcc.html#a4">reload_equalizer</a>(events, equalizer_levels.write, preset_offset);
00192 }
00193
00194 <span class="comment">/*</span>
00195 <span class="comment"> * If the current mask equals the log button,</span>
00196 <span class="comment"> * we flip the display_log bit.</span>
00197 <span class="comment"> */</span>
00198 <span class="keywordflow">if</span> (BUTTON_LOG == events->mask) {
00199 audiodata->display_log = !audiodata->display_log;
00200 } <span class="keywordflow">else</span> {
00201 delay;
00202 }
00203
00204 <span class="keywordflow">break</span>;
00205
00206 <span class="keywordflow">case</span> MOUSE_STATE_DOWN:
00207 <span class="comment">/*</span>
00208 <span class="comment"> * If we are in the volume area we update the</span>
00209 <span class="comment"> * volume level for both channels.</span>
00210 <span class="comment"> */</span>
00211 <span class="keywordflow">if</span> (AREA_VOLUME_YAXIS == events->mask) {
00212 <span class="comment">/*</span>
00213 <span class="comment"> * Copy the current Y cursor position</span>
00214 <span class="comment"> * to the events struct. This we then</span>
00215 <span class="comment"> * later use for drawing purposes.</span>
00216 <span class="comment"> */</span>
00217 events->volume_position = 0 @ mousedata->y;
00218 <span class="comment">/*</span>
00219 <span class="comment"> * Look the relative y-coordinate up in</span>
00220 <span class="comment"> * the volumecontrol lookup table. We</span>
00221 <span class="comment"> * make a local copy here because the</span>
00222 <span class="comment"> * RC200 call doesn't behave nicely</span>
00223 <span class="comment"> * when passing anything else.</span>
00224 <span class="comment"> */</span>
00225 volume_left = volumecontrol_table[((mousedata->y) -65) <- 6];
00226 <span class="comment">/*</span>
00227 <span class="comment"> * We feel that volume gets softer the</span>
00228 <span class="comment"> * closer it gets to the 0, and louder</span>
00229 <span class="comment"> * as it approaches 0x1f. The SetVolume</span>
00230 <span class="comment"> * RC200 call does this in an unnatural</span>
00231 <span class="comment"> * reverse way. Therefor we fix it.</span>
00232 <span class="comment"> */</span>
00233 RC200AudioOutSetVolume(!volume_left, 0x1f -volume_left, 0x1f -volume_left);
00234 } <span class="keywordflow">else</span> {
00235 delay;
00236 }
00237
00238 <span class="keywordflow">if</span> ((AREA_EQUALIZER_MIN <= events->mask) && (events->mask <= AREA_EQUALIZER_MAX)) {
00239
00240 events->locked_equalizer = TRUE;
00241 delay;
00242 reference_point = events->equalizer_display[(events->mask -5 -AREA_EQUALIZER_MIN) <- 7];
00243
00244 <span class="keywordflow">for</span> (index_offset = 9; index_offset != 0; index_offset--) {
00245 <span class="keywordtype">unsigned</span> 10 average_bar;
00246 <span class="keywordtype">unsigned</span> 7 equalizer_index;
00247 <span class="keywordtype">unsigned</span> 4 bar_index;
00248
00249 <span class="keywordflow">if</span> (index_offset == 5) {
00250 reference_point = events->equalizer_display[(events->mask +5 -AREA_EQUALIZER_MIN) <- 7];
00251 } <span class="keywordflow">else</span> {
00252 delay;
00253 }
00254
00255 <span class="keywordflow">if</span> (index_offset > 5) {
00256 bar_index = (index_offset -5);
00257 } <span class="keywordflow">else</span> {
00258 bar_index = (5 -index_offset);
00259 }
00260
00261 <span class="keywordflow">if</span> (reference_point > mousedata->y) {
00262 average_bar = mousedata->y -((reference_point -mousedata->y) >> (5 - bar_index));
00263 } <span class="keywordflow">else</span> {
00264 average_bar = mousedata->y +((mousedata->y -reference_point) >> (5 - bar_index));
00265 }
00266
00267 equalizer_index = ((events->mask +5 -(0 @ index_offset) -AREA_EQUALIZER_MIN) <- 7);
00268
00269 events->equalizer_display[equalizer_index] = average_bar;
00270 equalizer_levels.write[preset_offset +(0 @ equalizer_index)] = equalizer_table[average_bar -382];
00271 }
00272
00273 events->locked_equalizer = FALSE;
00274 } <span class="keywordflow">else</span> {
00275 delay;
00276 }
00277
00278 <span class="keywordflow">break</span>;
00279
00280 <span class="keywordflow">default</span>:
00281 <span class="keywordflow">break</span>;
00282 }
00283 }
00284 } <span class="comment">/* --- eventhandler_main() --- */</span>
00285
00286
00287
00288 <span class="comment">/*</span>
00289 <span class="comment"> * Volume Control lookuptable.</span>
00290 <span class="comment"> * TODO: This table is now hardcoded. To ensure full skinability this table</span>
00291 <span class="comment"> * should be dynamically loaded.</span>
00292 <span class="comment"> */</span>
00293 rom <span class="keywordtype">unsigned</span> 5 volumecontrol_table[46] = {31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0};
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