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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Graphic Equalizer: 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>
00022 <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="display__shared_8hch.html">display_shared.hch</a>"</span>
00035 <span class="preprocessor">#include "<a class="code" href="display_8hch.html">display.hch</a>"</span>
00036
00037 <span class="preprocessor">#if HAVE_DEBUG</span>
00038 <span class="preprocessor"></span><span class="preprocessor"> #include "debug.hch"</span>
00039 <span class="preprocessor">#endif</span>
00040 <span class="preprocessor"></span>
00041
00042
00043 <span class="comment">/*</span>
00044 <span class="comment"> * Channel to notify others when new mousedata is available. If so</span>
00045 <span class="comment"> * Then mousedata struct is updated with shared data.</span>
00046 <span class="comment"> */</span>
00047 chan <span class="keywordtype">unsigned</span> 1 maskupdate_notification;
00048
00049
00050
<a name="l00064"></a><a class="code" href="display_8hcc.html#a3">00064</a> <span class="keywordtype">void</span> <a class="code" href="display_8hcc.html#a3">display_main</a>(skindata_t *skindata, audiodata_t *audiodata, events_t *events, mousedata_t *mousedata) {
00065 <span class="comment">/*</span>
00066 <span class="comment"> * Setup macro's RAM/Video handles and to coordinate pixel writing.</span>
00067 <span class="comment"> */</span>
00068 macro expr CLOCKRATE = PAL_ACTUAL_CLOCK_RATE;
00069 macro expr VIDEOOUT = PalVideoOutOptimalCT(CLOCKRATE);
00070 macro expr RAM_BANK0 = PalPL2RAMCT(0);
00071 macro expr DW = PalPL2RAMGetMaxDataWidthCT();
00072 macro expr AW = PalPL2RAMGetMaxAddressWidthCT();
00073 macro expr VISIBLEX = PalVideoOutGetVisibleX(VIDEOOUT, CLOCKRATE);
00074 macro expr TOTALX = PalVideoOutGetTotalX(VIDEOOUT, CLOCKRATE);
00075 macro expr TOTALY = PalVideoOutGetTotalY(VIDEOOUT);
00076 macro expr SCANX = PalVideoOutGetX(VIDEOOUT);
00077 macro expr SCANY = PalVideoOutGetY(VIDEOOUT);
00078
00079 <span class="keywordtype">unsigned</span> DW pixeldata;
00080 <span class="keywordtype">unsigned</span> 24 visual_graph_color;
00081 <span class="keywordtype">unsigned</span> AW address, address_offset;
00082
00083 <span class="comment">/*</span>
00084 <span class="comment"> * To draw something usefull when only drawing our mask, we simply draw the</span>
00085 <span class="comment"> * mask itself. Thus creating a blueish image to help identify all interesting</span>
00086 <span class="comment"> * area's on the screen. Otherwise we only use the last 24 bits, the RGB values</span>
00087 <span class="comment"> * to draw on the screen.</span>
00088 <span class="comment"> */</span>
00089 <span class="preprocessor">#if (USE_MASK_ONLY && HAVE_SMARTMEDIA)</span>
00090 <span class="preprocessor"></span><span class="preprocessor">#define PIXEL (0 @ pixeldata[31:24])</span>
00091 <span class="preprocessor"></span><span class="preprocessor">#else</span>
00092 <span class="preprocessor"></span><span class="preprocessor">#define PIXEL (pixeldata <- 24)</span>
00093 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00094 <span class="preprocessor"></span>
00095 <span class="comment">/*</span>
00096 <span class="comment"> * If the passed button_state tells us the button is active, then we</span>
00097 <span class="comment"> * the button is 'on' and we draw it inverted. Otherwise we draw the</span>
00098 <span class="comment"> * area of the button normally.</span>
00099 <span class="comment"> */</span>
00100 macro proc draw_button(button_state) {
00101 <span class="keywordflow">if</span> (button_state == pixeldata[31:24]) {
00102 PalVideoOutWrite(VIDEOOUT, ~PIXEL);
00103 } <span class="keywordflow">else</span> {
00104 PalVideoOutWrite(VIDEOOUT, PIXEL);
00105 }
00106 }
00107
00108 <span class="comment">/*</span>
00109 <span class="comment"> * Prime Rendering Pipeline to start where the skin starts.</span>
00110 <span class="comment"> */</span>
00111 PalPL2RAMSetReadAddress(RAM_BANK0, ADDRESS_SKIN_START);
00112
00113 <span class="comment">/*</span>
00114 <span class="comment"> * Run the following tasks indefinatly and in parallel</span>
00115 <span class="comment"> */</span>
00116 <span class="keywordflow">while</span> (TRUE) {
00117 par {
00118 <span class="comment">/*</span>
00119 <span class="comment"> * Before starting this loop we allready set the the</span>
00120 <span class="comment"> * address. Therefor we can start reading the</span>
00121 <span class="comment"> * previously set address and prepare the next address</span>
00122 <span class="comment"> * for the next cycle.</span>
00123 <span class="comment"> */</span>
00124 PalPL2RAMRead(RAM_BANK0, &pixeldata);
00125 PalPL2RAMSetReadAddress(RAM_BANK0, address_offset +address);
00126
00127 <span class="comment">/*</span>
00128 <span class="comment"> */</span>
00129 <span class="keywordflow">switch</span> (events->mode) {
00130 <span class="keywordflow">case</span> MODE_HELP:
00131 address_offset = ADDRESS_HELP_START;
00132 <span class="keywordflow">break</span>;
00133 <span class="keywordflow">case</span> MODE_GRAPH:
00134 address_offset = ADDRESS_GRAPHMASK_START;
00135 <span class="keywordflow">break</span>;
00136 <span class="keywordflow">default</span>:
00137 address_offset = ADDRESS_SKIN_START;
00138 <span class="keywordflow">break</span>;
00139 }
00140
00141 <span class="keywordflow">if</span> (MODE_GRAPH == events->mode) {
00142 par {
00143 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);
00144 PalVideoOutWrite(VIDEOOUT, 0 @ visual_graph_color);
00145 }
00146 } <span class="keywordflow">else</span> {
00147 <span class="comment">/*</span>
00148 <span class="comment"> * Determin what to draw where here. Every case has an</span>
00149 <span class="comment"> * if else statement comparing wether to draw something</span>
00150 <span class="comment"> * special or the background. Every specific drawing</span>
00151 <span class="comment"> * obviously only happens in the masked area.</span>
00152 <span class="comment"> */</span>
00153 <span class="keywordflow">switch</span> (pixeldata[31:24]) {
00154 <span class="comment">/*</span>
00155 <span class="comment"> */</span>
00156 <span class="keywordflow">case</span> AREA_WAVEFORM:
00157 <span class="keywordflow">if</span> (SCANY == 0 @ skindata->area_waveform_bottom -(0 @ (audiodata->ifft_info.read[((SCANX -(0 @ skindata->area_waveform_left)) <-8)]))) {
00158 PalVideoOutWrite(VIDEOOUT, skindata->color_area_waveform);
00159 } <span class="keywordflow">else</span> {
00160 PalVideoOutWrite(VIDEOOUT, PIXEL);
00161 }
00162 <span class="keywordflow">break</span>;
00163
00164 <span class="comment">/*</span>
00165 <span class="comment"> * Volume control over the Y-axis.</span>
00166 <span class="comment"> */</span>
00167 <span class="keywordflow">case</span> AREA_VOLUME_YAXIS:
00168 <span class="comment">/*</span>
00169 <span class="comment"> * The volume_position stores the</span>
00170 <span class="comment"> * highest point of our bar. Every</span>
00171 <span class="comment"> * pixel after this point is drawn.</span>
00172 <span class="comment"> */</span>
00173 <span class="keywordflow">if</span> (SCANY >= 0 @ events->volume_position) {
00174 PalVideoOutWrite(VIDEOOUT, skindata->color_area_volume);
00175 } <span class="keywordflow">else</span> {
00176 PalVideoOutWrite(VIDEOOUT, PIXEL);
00177 }
00178 <span class="keywordflow">break</span>;
00179
00180 <span class="comment">/*</span>
00181 <span class="comment"> * Spectrum Analyzer</span>
00182 <span class="comment"> */</span>
00183 <span class="keywordflow">case</span> AREA_SPECTRUM_ANALYZER:
00184 <span class="comment">/*</span>
00185 <span class="comment"> * We draw every pixel that is smaller TODO</span>
00186 <span class="comment"> */</span>
00187 <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)) {
00188 PalVideoOutWrite(VIDEOOUT, PIXEL_SPECTRUM);
00189 } <span class="keywordflow">else</span> {
00190 PalVideoOutWrite(VIDEOOUT, PIXEL);
00191 }
00192 <span class="keywordflow">break</span>;
00193
00194 <span class="comment">/*</span>
00195 <span class="comment"> * Since all buttons are drawn equally, either</span>
00196 <span class="comment"> * we draw them normally or we inverse them, we</span>
00197 <span class="comment"> * can handle them almost equally.</span>
00198 <span class="comment"> */</span>
00199 <span class="keywordflow">case</span> BUTTON_PRESET_1: <span class="comment">/* fall through */</span>
00200 <span class="keywordflow">case</span> BUTTON_PRESET_2: <span class="comment">/* fall through */</span>
00201 <span class="keywordflow">case</span> BUTTON_PRESET_3: <span class="comment">/* fall through */</span>
00202 <span class="keywordflow">case</span> BUTTON_PRESET_4: <span class="comment">/* fall through */</span>
00203 <span class="keywordflow">case</span> BUTTON_PRESET_5: <span class="comment">/* fall through */</span>
00204 <span class="keywordflow">case</span> BUTTON_PRESET_6:
00205 <span class="comment">/*</span>
00206 <span class="comment"> * The active preset tells us what</span>
00207 <span class="comment"> * button is currently enabled. We must</span>
00208 <span class="comment"> * however not forget to add the preset</span>
00209 <span class="comment"> * button offset to possibly match it</span>
00210 <span class="comment"> * with the current mask.</span>
00211 <span class="comment"> */</span>
00212 draw_button((events->active_preset +BUTTON_PRESET_1) <- 8);
00213 <span class="keywordflow">break</span>;
00214
00215 <span class="keywordflow">case</span> BUTTON_CONVEX_FULL: <span class="comment">/* fall through */</span>
00216 <span class="keywordflow">case</span> BUTTON_CONVEX_HALF: <span class="comment">/* fall through */</span>
00217 <span class="keywordflow">case</span> BUTTON_PRECISE: <span class="comment">/* fall through */</span>
00218 <span class="keywordflow">case</span> BUTTON_CONCAVE_HALF: <span class="comment">/* fall through */</span>
00219 <span class="keywordflow">case</span> BUTTON_CONCAVE_FULL:
00220 <span class="comment">/*</span>
00221 <span class="comment"> * equalizer mode tells us what button</span>
00222 <span class="comment"> * is currently enabled. By adding the</span>
00223 <span class="comment"> * equalizer mode button offset we can</span>
00224 <span class="comment"> * safley check wether it matches our</span>
00225 <span class="comment"> * mask.</span>
00226 <span class="comment"> */</span>
00227 draw_button((0 @ events->equalizer_mode) +BUTTON_CONVEX_FULL);
00228 <span class="keywordflow">break</span>;
00229
00230 <span class="keywordflow">case</span> BUTTON_LOG:
00231 <span class="comment">/*</span>
00232 <span class="comment"> * </span>
00233 <span class="comment"> */</span>
00234 draw_button((0 @ audiodata->display_log) +BUTTON_LOG);
00235 <span class="keywordflow">break</span>;
00236
00237 <span class="comment">/*</span>
00238 <span class="comment"> * The default case is split up into two parts</span>
00239 <span class="comment"> * actually. This is because we have 128 bands</span>
00240 <span class="comment"> * for the equalizer and thus as many mask</span>
00241 <span class="comment"> * entries. Since we don't want 128 identical</span>
00242 <span class="comment"> * cases we check wether the equalizer mask is</span>
00243 <span class="comment"> * currently active and if so draw it. If this</span>
00244 <span class="comment"> * is not the case we simply draw the</span>
00245 <span class="comment"> * background.</span>
00246 <span class="comment"> */</span>
00247 <span class="keywordflow">default</span>:
00248 <span class="comment">/* (pixeldata[31:24] <= AREA_EQUALIZER_MAX) && */</span>
00249 <span class="keywordflow">if</span> (!events->locked_equalizer) {
00250 <span class="keywordflow">if</span> ((AREA_EQUALIZER_MIN <= pixeldata[31:24]) && ((SCANY -(0 @ SCANY <- 1)) == 0 @ events->equalizer_display[(pixeldata[31:24] -AREA_EQUALIZER_MIN) <- 7])) {
00251 PalVideoOutWrite(VIDEOOUT, skindata->color_equalizer);
00252 } <span class="keywordflow">else</span> {
00253 PalVideoOutWrite(VIDEOOUT, PIXEL);
00254 }
00255 } <span class="keywordflow">else</span> {
00256 PalVideoOutWrite(VIDEOOUT, PIXEL);
00257 }
00258 <span class="keywordflow">break</span>;
00259 }
00260 }
00261
00262 <span class="comment">/*</span>
00263 <span class="comment"> * We compare our current X and Y scan positions of the</span>
00264 <span class="comment"> * output to the x and y data of the mouse. When those</span>
00265 <span class="comment"> * are equal we set the current mask to the mask stored</span>
00266 <span class="comment"> * in memory at that location. We then know what mask</span>
00267 <span class="comment"> * is to be used for events.</span>
00268 <span class="comment"> */</span>
00269 <span class="keywordflow">if</span> (MOUSE_UPDATED == mousedata->status) {
00270 <span class="keywordflow">if</span> ((SCANX == 0 @ mousedata->x) && (SCANY == 0 @ mousedata->y)) {
00271 par {
00272 events->mask = pixeldata[31:24];
00273 mousedata->status = MOUSE_NOT_UPDATED;
00274 maskupdate_notification ! MOUSE_UPDATED;
00275 }
00276 } <span class="keywordflow">else</span> {
00277 delay;
00278 }
00279 } <span class="keywordflow">else</span> {
00280 delay;
00281 }
00282
00283 <span class="comment">/*</span>
00284 <span class="comment"> * The current position of the screen can lay in an</span>
00285 <span class="comment"> * area called the blanking area. We don't have data</span>
00286 <span class="comment"> * for this area as it is not drawn. We therefor have</span>
00287 <span class="comment"> * to determin wether we are beyond the visible area of</span>
00288 <span class="comment"> * the screen, but before the end of the total width of</span>
00289 <span class="comment"> * the screen. Our pipeline consists of 4 total stages.</span>
00290 <span class="comment"> * Therefor we have to substract 4 pixels.</span>
00291 <span class="comment"> */</span>
00292 <span class="keywordflow">if</span> ((SCANX > (VISIBLEX - 4)) && (SCANX <= (TOTALX - 4))) {
00293 <span class="comment">/*</span>
00294 <span class="comment"> * We are in the blanking area of the screen.</span>
00295 <span class="comment"> * If we are on the last line, and thus last</span>
00296 <span class="comment"> * pixel we reset our address counter.</span>
00297 <span class="comment"> */</span>
00298 <span class="keywordflow">if</span> (SCANY == (TOTALY -1)) {
00299 <span class="comment">/*</span>
00300 <span class="comment"> * Reset our draw address counter to 0.</span>
00301 <span class="comment"> */</span>
00302 address = 0;
00303 } <span class="keywordflow">else</span> {
00304 <span class="comment">/*</span>
00305 <span class="comment"> * We should not ever get inhere. To</span>
00306 <span class="comment"> * keep everything consequent however,</span>
00307 <span class="comment"> * we add a delay.</span>
00308 <span class="comment"> */</span>
00309 delay;
00310 }
00311 } <span class="keywordflow">else</span> {
00312 <span class="comment">/*</span>
00313 <span class="comment"> * Increase the memory counter for each pixel</span>
00314 <span class="comment"> * drawn thus keeping the memory location in</span>
00315 <span class="comment"> * sync with the current pixel position.</span>
00316 <span class="comment"> */</span>
00317 address++;
00318 }
00319 }
00320 }
00321 } <span class="comment">/* --- display_main() --- */</span>
00322
00323
00324
<a name="l00337"></a><a class="code" href="display_8hcc.html#a4">00337</a> <span class="keywordtype">void</span> <a class="code" href="display_8hcc.html#a4">reload_equalizer</a>(events_t *events, <span class="keywordtype">unsigned</span> 4 *equalizer_levels) {
00338 <span class="keywordtype">unsigned</span> 7 equalizer_band;
00339
00340 events->locked_equalizer = TRUE;
00341 delay;
00342 <span class="keywordflow">do</span> {
00343 events->equalizer_display[equalizer_band] = equalizer_table_inv[equalizer_levels[equalizer_band]];
00344 equalizer_band++;
00345 } <span class="keywordflow">while</span> (equalizer_band);
00346 events->locked_equalizer = FALSE;
00347 } <span class="comment">/* --- reload_equalizer() --- */</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Nov 29 12:04:47 2004 for Graphic Equalizer by
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