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<title>Graphic Equalizer 2: C:/Project Marcel & Oliver/Graphic_Equalizer/src/display.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>display.hcc</h1><a href="display_8hcc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
00019 <span class="comment">/*</span>
00020 <span class="comment"> * Set the Clock rate for this domain. 25.175 Mhz is required for the Video output.</span>
00021 <span class="comment"> */</span>
<a name="l00022"></a><a class="code" href="display_8hcc.html#a0">00022</a> <span class="preprocessor">#define PAL_TARGET_CLOCK_RATE 25175000</span>
00023 <span class="preprocessor"></span>
00024 <span class="comment">/******** System Includes *************/</span>
00025 <span class="preprocessor">#include <stdlib.hch></span>
00026
00027 <span class="preprocessor">#include "pal_master.hch"</span>
00028
00029 <span class="comment">/******** Application Includes ********/</span>
00030 <span class="preprocessor">#include "<a class="code" href="configuration_8hch.html">configuration.hch</a>"</span>
00031 <span class="preprocessor">#include "<a class="code" href="audio_8hch.html">audio.hch</a>"</span>
00032 <span class="preprocessor">#include "<a class="code" href="eventhandler__shared_8hch.html">eventhandler_shared.hch</a>"</span>
00033 <span class="preprocessor">#include "<a class="code" href="mouse__shared_8hch.html">mouse_shared.hch</a>"</span>
00034 <span class="preprocessor">#include "<a class="code" href="smartmedia__shared_8hch.html">smartmedia_shared.hch</a>"</span>
00035 <span class="preprocessor">#include "<a class="code" href="display__shared_8hch.html">display_shared.hch</a>"</span>
00036 <span class="preprocessor">#include "<a class="code" href="display_8hch.html">display.hch</a>"</span>
00037
00038 <span class="preprocessor">#if HAVE_DEBUG</span>
00039 <span class="preprocessor"></span><span class="preprocessor"> #include "debug.hch"</span>
00040 <span class="preprocessor">#endif</span>
00041 <span class="preprocessor"></span>
00042
00043
00044 <span class="comment">/*</span>
00045 <span class="comment"> * Channel to notify others when new mousedata is available. If so</span>
00046 <span class="comment"> * Then mousedata struct is updated with shared data.</span>
00047 <span class="comment"> */</span>
<a name="l00048"></a><a class="code" href="eventhandler_8hcc.html#a0">00048</a> chan <span class="keywordtype">unsigned</span> 1 maskupdate_notification;
00049
00050
00051
<a name="l00065"></a><a class="code" href="display_8hcc.html#a2">00065</a> <span class="keywordtype">void</span> <a class="code" href="display_8hcc.html#a2">display_main</a>(<a class="code" href="structskindata__t.html">skindata_t</a> *skindata, <a class="code" href="structaudiodata__t.html">audiodata_t</a> *audiodata, <a class="code" href="structevents__t.html">events_t</a> *events, <a class="code" href="structmousedata__t.html">mousedata_t</a> *mousedata) {
00066 <span class="comment">/*</span>
00067 <span class="comment"> * Setup macro's RAM/Video handles and to coordinate pixel writing.</span>
00068 <span class="comment"> */</span>
00069 macro expr CLOCKRATE = PAL_ACTUAL_CLOCK_RATE;
00070 macro expr VIDEOOUT = PalVideoOutOptimalCT(CLOCKRATE);
00071 macro expr RAM_BANK0 = PalPL2RAMCT(0);
00072 macro expr DW = PalPL2RAMGetMaxDataWidthCT();
00073 macro expr AW = PalPL2RAMGetMaxAddressWidthCT();
00074 macro expr VISIBLEX = PalVideoOutGetVisibleX(VIDEOOUT, CLOCKRATE);
00075 macro expr TOTALX = PalVideoOutGetTotalX(VIDEOOUT, CLOCKRATE);
00076 macro expr TOTALY = PalVideoOutGetTotalY(VIDEOOUT);
00077 macro expr SCANX = PalVideoOutGetX(VIDEOOUT);
00078 macro expr SCANY = PalVideoOutGetY(VIDEOOUT);
00079
00080 <span class="keywordtype">unsigned</span> DW pixeldata;
00081 <span class="keywordtype">unsigned</span> 24 visual_graph_color;
00082 <span class="keywordtype">unsigned</span> AW address, address_offset;
00083
00084
00085
00086 <span class="comment">/*</span>
00087 <span class="comment"> * If the passed button_state tells us the button is active, then we</span>
00088 <span class="comment"> * the button is 'on' and we draw it inverted. Otherwise we draw the</span>
00089 <span class="comment"> * area of the button normally.</span>
00090 <span class="comment"> */</span>
00091 macro proc draw_button(button_state) {
00092 <span class="keywordflow">if</span> (button_state == pixeldata[31:24]) {
00093 PalVideoOutWrite(VIDEOOUT, ~<a class="code" href="display_8hch.html#a1">PIXEL</a>);
00094 } <span class="keywordflow">else</span> {
00095 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00096 }
00097 }
00098
00099 <span class="comment">/*</span>
00100 <span class="comment"> * Prime Rendering Pipeline to start where the skin starts.</span>
00101 <span class="comment"> */</span>
00102 PalPL2RAMSetReadAddress(RAM_BANK0, <a class="code" href="smartmedia__shared_8hch.html#a22">ADDRESS_SKIN_START</a>);
00103
00104 <span class="comment">/*</span>
00105 <span class="comment"> * Run the following tasks indefinatly and in parallel</span>
00106 <span class="comment"> */</span>
00107 <span class="keywordflow">while</span> (TRUE) {
00108 par {
00109 <span class="comment">/*</span>
00110 <span class="comment"> * Before starting this loop we allready set the the</span>
00111 <span class="comment"> * address. Therefor we can start reading the</span>
00112 <span class="comment"> * previously set address and prepare the next address</span>
00113 <span class="comment"> * for the next cycle.</span>
00114 <span class="comment"> */</span>
00115 PalPL2RAMRead(RAM_BANK0, &pixeldata);
00116 PalPL2RAMSetReadAddress(RAM_BANK0, address_offset +address);
00117
00118 <span class="comment">/*</span>
00119 <span class="comment"> */</span>
00120 <span class="keywordflow">switch</span> (events-><a class="code" href="structevents__t.html#o4">mode</a>) {
00121 <span class="keywordflow">case</span> <a class="code" href="eventhandler__shared_8hch.html#a2">MODE_HELP</a>:
00122 address_offset = ADDRESS_HELP_START;
00123 <span class="keywordflow">break</span>;
00124 <span class="keywordflow">case</span> <a class="code" href="eventhandler__shared_8hch.html#a3">MODE_GRAPH</a>:
00125 address_offset = ADDRESS_GRAPHMASK_START;
00126 <span class="keywordflow">break</span>;
00127 <span class="keywordflow">default</span>:
00128 address_offset = ADDRESS_SKIN_START;
00129 <span class="keywordflow">break</span>;
00130 }
00131
00132 <span class="keywordflow">if</span> (<a class="code" href="eventhandler__shared_8hch.html#a3">MODE_GRAPH</a> == events-><a class="code" href="structevents__t.html#o4">mode</a>) {
00133 par {
00134 visual_graph_color = ((<span class="keywordtype">unsigned</span> 8)(0 @ audiodata->fft_info.read[pixeldata[31:24]]) << 1) @ ((<span class="keywordtype">unsigned</span> 8)(0 @ audiodata->fft_info.read[pixeldata[31:24]]) << -1) @ ((<span class="keywordtype">unsigned</span> 8)(0 @ audiodata->fft_info.read[pixeldata[31:24]]) << 0);
00135 PalVideoOutWrite(VIDEOOUT, 0 @ visual_graph_color);
00136 }
00137 } <span class="keywordflow">else</span> {
00138 <span class="comment">/*</span>
00139 <span class="comment"> * Determin what to draw where here. Every case has an</span>
00140 <span class="comment"> * if else statement comparing wether to draw something</span>
00141 <span class="comment"> * special or the background. Every specific drawing</span>
00142 <span class="comment"> * obviously only happens in the masked area.</span>
00143 <span class="comment"> */</span>
00144 <span class="keywordflow">switch</span> (pixeldata[31:24]) {
00145 <span class="comment">/*</span>
00146 <span class="comment"> */</span>
00147 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a1">AREA_WAVEFORM</a>:
00148 <span class="keywordflow">if</span> (SCANY == 0 @ skindata->area_waveform_bottom -(0 @ (audiodata->ifft_info.read[((SCANX -(0 @ skindata->area_waveform_left)) <-8)]))) {
00149 PalVideoOutWrite(VIDEOOUT, skindata->color_area_waveform);
00150 } <span class="keywordflow">else</span> {
00151 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00152 }
00153 <span class="keywordflow">break</span>;
00154
00155 <span class="comment">/*</span>
00156 <span class="comment"> * Volume control over the Y-axis.</span>
00157 <span class="comment"> */</span>
00158 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a2">AREA_VOLUME_YAXIS</a>:
00159 <span class="comment">/*</span>
00160 <span class="comment"> * The volume_position stores the</span>
00161 <span class="comment"> * highest point of our bar. Every</span>
00162 <span class="comment"> * pixel after this point is drawn.</span>
00163 <span class="comment"> */</span>
00164 <span class="keywordflow">if</span> (SCANY >= 0 @ events-><a class="code" href="structevents__t.html#o2">volume_position</a>) {
00165 PalVideoOutWrite(VIDEOOUT, skindata->color_area_volume);
00166 } <span class="keywordflow">else</span> {
00167 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00168 }
00169 <span class="keywordflow">break</span>;
00170
00171 <span class="comment">/*</span>
00172 <span class="comment"> * Spectrum Analyzer</span>
00173 <span class="comment"> */</span>
00174 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a3">AREA_SPECTRUM_ANALYZER</a>:
00175 <span class="comment">/*</span>
00176 <span class="comment"> * We draw every pixel that is smaller TODO</span>
00177 <span class="comment"> */</span>
00178 <span class="keywordflow">if</span> ((SCANY >= (0 @ skindata->area_spectrum_bottom) -(0 @ audiodata->fft_info.read[(SCANX -(0 @ skindata->area_spectrum_left))[9:2]])) && ((SCANX -(0 @ skindata->area_spectrum_left)) <- 2)) {
00179 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a4">PIXEL_SPECTRUM</a>);
00180 } <span class="keywordflow">else</span> {
00181 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00182 }
00183 <span class="keywordflow">break</span>;
00184
00185 <span class="comment">/*</span>
00186 <span class="comment"> * Since all buttons are drawn equally, either</span>
00187 <span class="comment"> * we draw them normally or we inverse them, we</span>
00188 <span class="comment"> * can handle them almost equally.</span>
00189 <span class="comment"> */</span>
00190 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a7">BUTTON_PRESET_1</a>: <span class="comment">/* fall through */</span>
00191 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a8">BUTTON_PRESET_2</a>: <span class="comment">/* fall through */</span>
00192 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a9">BUTTON_PRESET_3</a>: <span class="comment">/* fall through */</span>
00193 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a10">BUTTON_PRESET_4</a>: <span class="comment">/* fall through */</span>
00194 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a11">BUTTON_PRESET_5</a>: <span class="comment">/* fall through */</span>
00195 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a12">BUTTON_PRESET_6</a>:
00196 <span class="comment">/*</span>
00197 <span class="comment"> * The active preset tells us what</span>
00198 <span class="comment"> * button is currently enabled. We must</span>
00199 <span class="comment"> * however not forget to add the preset</span>
00200 <span class="comment"> * button offset to possibly match it</span>
00201 <span class="comment"> * with the current mask.</span>
00202 <span class="comment"> */</span>
00203 draw_button((events-><a class="code" href="structevents__t.html#o1">active_preset</a> +<a class="code" href="display__shared_8hch.html#a7">BUTTON_PRESET_1</a>) <- 8);
00204 <span class="keywordflow">break</span>;
00205
00206 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a15">BUTTON_PRECISE</a>: <span class="comment">/* fall through */</span>
00207 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a16">BUTTON_CONCAVE_HALF</a>: <span class="comment">/* fall through */</span>
00208 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a14">BUTTON_CONVEX_HALF</a>: <span class="comment">/* fall through */</span>
00209 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a17">BUTTON_CONCAVE_FULL</a>: <span class="comment">/* fall through */</span>
00210 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a13">BUTTON_CONVEX_FULL</a>:
00211 <span class="comment">/*</span>
00212 <span class="comment"> * equalizer mode tells us what button</span>
00213 <span class="comment"> * is currently enabled. By adding the</span>
00214 <span class="comment"> * equalizer mode button offset we can</span>
00215 <span class="comment"> * safley check wether it matches our</span>
00216 <span class="comment"> * mask.</span>
00217 <span class="comment"> */</span>
00218 draw_button((0 @ events-><a class="code" href="structevents__t.html#o5">equalizer_mode</a>) +<a class="code" href="display__shared_8hch.html#a15">BUTTON_PRECISE</a>);
00219 <span class="keywordflow">break</span>;
00220
00221 <span class="keywordflow">case</span> <a class="code" href="display__shared_8hch.html#a4">BUTTON_LOG</a>:
00222 <span class="comment">/*</span>
00223 <span class="comment"> * </span>
00224 <span class="comment"> */</span>
00225 draw_button((0 @ audiodata-><a class="code" href="structaudiodata__t.html#o1">display_log</a>) +<a class="code" href="display__shared_8hch.html#a4">BUTTON_LOG</a>);
00226 <span class="keywordflow">break</span>;
00227
00228 <span class="comment">/*</span>
00229 <span class="comment"> * The default case is split up into two parts</span>
00230 <span class="comment"> * actually. This is because we have 128 bands</span>
00231 <span class="comment"> * for the equalizer and thus as many mask</span>
00232 <span class="comment"> * entries. Since we don't want 128 identical</span>
00233 <span class="comment"> * cases we check wether the equalizer mask is</span>
00234 <span class="comment"> * currently active and if so draw it. If this</span>
00235 <span class="comment"> * is not the case we simply draw the</span>
00236 <span class="comment"> * background.</span>
00237 <span class="comment"> */</span>
00238 <span class="keywordflow">default</span>:
00239 <span class="comment">/* (pixeldata[31:24] <= AREA_EQUALIZER_MAX) && */</span>
00240 <span class="keywordflow">if</span> ((<a class="code" href="display__shared_8hch.html#a20">AREA_EQUALIZER_MIN</a> <= pixeldata[31:24]) && (!events-><a class="code" href="structevents__t.html#o6">locked_display</a>)) {
00241 <span class="keywordflow">if</span> ((SCANY == 0 @ events-><a class="code" href="structevents__t.html#o0">equalizer_display</a>[(pixeldata[31:24] -AREA_EQUALIZER_MIN) <- 7]) || ((SCANY +1) == 0 @ events-><a class="code" href="structevents__t.html#o0">equalizer_display</a>[(pixeldata[31:24] -AREA_EQUALIZER_MIN) <- 7])) {
00242 PalVideoOutWrite(VIDEOOUT, skindata->color_equalizer);
00243 } <span class="keywordflow">else</span> {
00244 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00245 }
00246 } <span class="keywordflow">else</span> {
00247 PalVideoOutWrite(VIDEOOUT, <a class="code" href="display_8hch.html#a1">PIXEL</a>);
00248 }
00249 <span class="keywordflow">break</span>;
00250 }
00251 }
00252
00253 <span class="comment">/*</span>
00254 <span class="comment"> * We compare our current X and Y scan positions of the</span>
00255 <span class="comment"> * output to the x and y data of the mouse. When those</span>
00256 <span class="comment"> * are equal we set the current mask to the mask stored</span>
00257 <span class="comment"> * in memory at that location. We then know what mask</span>
00258 <span class="comment"> * is to be used for events.</span>
00259 <span class="comment"> */</span>
00260 <span class="keywordflow">if</span> (<a class="code" href="mouse__shared_8hch.html#a2">MOUSE_UPDATED</a> == mousedata-><a class="code" href="structmousedata__t.html#o3">status</a>) {
00261 <span class="keywordflow">if</span> ((SCANX == 0 @ mousedata-><a class="code" href="structmousedata__t.html#o0">x</a>) && (SCANY == 0 @ mousedata-><a class="code" href="structmousedata__t.html#o1">y</a>)) {
00262 par {
00263 events-><a class="code" href="structevents__t.html#o3">mask</a> = pixeldata[31:24];
00264 mousedata-><a class="code" href="structmousedata__t.html#o3">status</a> = MOUSE_NOT_UPDATED;
00265 <a class="code" href="display_8hcc.html#a1">maskupdate_notification</a> ! MOUSE_UPDATED;
00266 }
00267 } <span class="keywordflow">else</span> {
00268 delay;
00269 }
00270 } <span class="keywordflow">else</span> {
00271 delay;
00272 }
00273
00274 <span class="comment">/*</span>
00275 <span class="comment"> * The current position of the screen can lay in an</span>
00276 <span class="comment"> * area called the blanking area. We don't have data</span>
00277 <span class="comment"> * for this area as it is not drawn. We therefor have</span>
00278 <span class="comment"> * to determin wether we are beyond the visible area of</span>
00279 <span class="comment"> * the screen, but before the end of the total width of</span>
00280 <span class="comment"> * the screen. Our pipeline consists of 5 total stages.</span>
00281 <span class="comment"> * Therefor we have to substract 5 pixels.</span>
00282 <span class="comment"> */</span>
00283 <span class="keywordflow">if</span> ((SCANX > (VISIBLEX - 5)) && (SCANX <= (TOTALX - 5))) {
00284 <span class="comment">/*</span>
00285 <span class="comment"> * We are in the blanking area of the screen.</span>
00286 <span class="comment"> * If we are on the last line, and thus last</span>
00287 <span class="comment"> * pixel we reset our address counter.</span>
00288 <span class="comment"> */</span>
00289 <span class="keywordflow">if</span> (SCANY == (TOTALY -1)) {
00290 <span class="comment">/*</span>
00291 <span class="comment"> * Reset our draw address counter to 0.</span>
00292 <span class="comment"> */</span>
00293 address = 0;
00294 } <span class="keywordflow">else</span> {
00295 <span class="comment">/*</span>
00296 <span class="comment"> * We have reached the end of the</span>
00297 <span class="comment"> * visible line, but not the end of</span>
00298 <span class="comment"> * the screen. Therefore do nothing.</span>
00299 <span class="comment"> */</span>
00300 delay;
00301 }
00302 } <span class="keywordflow">else</span> {
00303 <span class="comment">/*</span>
00304 <span class="comment"> * Increase the memory counter for each pixel</span>
00305 <span class="comment"> * drawn thus keeping the memory location in</span>
00306 <span class="comment"> * sync with the current pixel position.</span>
00307 <span class="comment"> */</span>
00308 address++;
00309 }
00310 }
00311 }
00312 } <span class="comment">/* --- display_main() --- */</span>
00313
00314
00315
<a name="l00328"></a><a class="code" href="display_8hcc.html#a3">00328</a> <span class="keywordtype">void</span> <a class="code" href="display_8hcc.html#a3">reload_equalizer</a>(<a class="code" href="structevents__t.html">events_t</a> *events, <span class="keywordtype">unsigned</span> 4 *equalizer_levels) {
00329 <span class="keywordtype">unsigned</span> 7 equalizer_band;
00330
00331 events-><a class="code" href="structevents__t.html#o6">locked_display</a> = TRUE;
00332 delay;
00333 <span class="keywordflow">do</span> {
00334 events-><a class="code" href="structevents__t.html#o0">equalizer_display</a>[equalizer_band] = <a class="code" href="eventhandler__shared_8hch.html#a9">equalizer_table_inv</a>[equalizer_levels[equalizer_band]];
00335 equalizer_band++;
00336 } <span class="keywordflow">while</span> (equalizer_band);
00337 events-><a class="code" href="structevents__t.html#o6">locked_display</a> = FALSE;
00338 } <span class="comment">/* --- reload_equalizer() --- */</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Dec 9 14:37:06 2004 for Graphic Equalizer 2 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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