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/*! \file eventhandler.hcc
*
* \section generic This modules coordinates all events. Thus for example
* when the mousehandler registers a 'click' we coordinate
* the actions that follow that click.
*
* \section project Project information.
* Project Graphic Equalizer\n
* \author O.M. Schinagl
* \date 20041110
* \version 0.1
*
* \section copyright Copyright
* Copyright ©2004 Koninklijke Philips Electronics N.V. All rights reserved
*
* \section history Change history
* 20041110: O.M. Schinagl\n Initial version
*
********************************************************************/
/******** System Includes *************/
#include <stdlib.hch>
#include "pal_master.hch"
/******** Application Includes ********/
#include "configuration.hch"
#include "audio.hch"
#include "mouse_shared.hch"
#include "display_shared.hch"
#include "eventhandler_shared.hch"
#include "eventhandler.hch"
#if HAVE_DEBUG
#include "debug.hch"
#endif
extern chan unsigned 1 maskupdate_notification;
/*! \fn void eventhandler_main(audiodata_t *audiodata, events_t *events, mousedata_t *mousedata);
* \brief
*
* \param events_t *events pointer to struct with all events.
* \param mousedata_t *mousedata pointer to struct with mouse data.
*
* \return Never Returns.
* \retval void
*/
void eventhandler_main(audiodata_t *audiodata, events_t *events, mousedata_t *mousedata) {
mpram {
ram unsigned 4 write[768];
rom unsigned 4 read[768];
} equalizer_levels with { block = "BlockRAM"};
unsigned 10 preset_offset;
unsigned 7 equalizer_bands;
unsigned 5 volume_left;
unsigned 1 newmaskupdate;
for (;;) {
maskupdate_notification ? newmaskupdate;
/*
* First we determine what mousestate we currently have. Then
* we check where we are to decide what to do.
*/
switch (mousedata->state) {
case MOUSE_STATE_ON_PRESS:
/*
* If the current mask equals the help button
* we flip the help bit.
*/
if (BUTTON_HELP == events->mask) {
events->help = !events->help;
} else {
delay;
}
/*
* The Preset buttons span from 1 to 6 so if
* the mask one of those, we'll change the
* pointer to point to the current preset.
*/
if ((BUTTON_PRESET_1 <= events->mask) && (events->mask <= BUTTON_PRESET_6)) {
/*
* The active preset is determined by
* the mask minus an offset. Hence
* ranging our active preset from 0 to
* 6.
*/
events->active_preset = 0 @ (events->mask -BUTTON_PRESET_1);
/*
* Each equalizer is 128 bands wide,
* thus we need to add 128 * the preset
* for each different preset. This
* offset is calculated here.
*/
preset_offset = events->active_preset << 7;
/*
* We set the pointer to the active
* part of the array by using the
* preset offset as our index. Hence
* depending on the selected preset
* we point to 0, 128, 256, 384, 512
* or 640.
*/
audiodata->equalizer_levels_ptr = &equalizer_levels.write[preset_offset];
/*
* Reverse fill
*/
equalizer_bands = 0;
do {
events->equalizer_position[equalizer_bands] = equalizer_table_inv[audiodata->equalizer_levels_ptr[equalizer_bands]];
equalizer_bands++;
} while (equalizer_bands);
} else {
delay;
}
if ((BUTTON_1 <= events->mask) && (events->mask <= BUTTON_5)) {
events->equalizer_mode = (events->mask -BUTTON_1) <- 3;
} else {
delay;
}
/*
* If the current mask equals the log button,
* we flip the display_log bit.
*/
if (BUTTON_LOG == events->mask) {
audiodata->display_log = !audiodata->display_log;
} else {
delay;
}
break;
case MOUSE_STATE_DOWN:
/*
* If we are in the volume area we update the
* volume level for both channels.
*/
if (AREA_VOLUME_YAXIS == events->mask) {
/*
* Copy the current Y cursor position
* to the events struct. This we then
* later use for drawing purposes.
*/
events->volume_position = 0 @ mousedata->y;
/*
* Look the relative y-coordinate up in
* the volumecontrol lookup table. We
* make a local copy here because the
* RC200 call doesn't behave nicely
* when passing anything else.
*/
volume_left = volumecontrol_table[((mousedata->y) -65) <- 6];
/*
* We feel that volume gets softer the
* closer it gets to the 0, and louder
* as it approaches 0x1f. The SetVolume
* RC200 call does this in an unnatural
* reverse way. Therefor we fix it.
*/
RC200AudioOutSetVolume(!volume_left, 0x1f -volume_left, 0x1f -volume_left);
} else {
delay;
}
if ((AREA_EQUALIZER_MIN <= events->mask) && (events->mask <= AREA_EQUALIZER_MAX)) {
/*
* Copy the current Y position into a
* store for the current equalizer bar.
* The index is determined by the mask
* minus the maskoffset.
*/
events->equalizer_position[((events->mask -AREA_EQUALIZER_MIN) <- 7)] = mousedata->y;
print_string("Eventsmask: ");print_hex_value(0 @ ((events->mask -AREA_EQUALIZER_MIN) <- 7));print_eol();
/*
* We look our current possition up in
* the lookup table. We determin our
* position via the current Y position
* (minus an offset of course). We
* store the result in the array of
* equalizer levels. The index we get
* from the current mask. We add the
* size of our equalizer bands times
* the active preset.
*
* TODO: lock equalizer store with a
* semaphore!
*/
audiodata->equalizer_levels_ptr[(events->mask -AREA_EQUALIZER_MIN) <- 7] = equalizer_table[(mousedata->y -382) <- 7];
} else {
delay;
}
break;
}
}
} /* --- eventhandler_main() --- */
/*
* Volume Control lookuptable.
* TODO: This table is now hardcoded. To ensure full skinability this table
* should be dynamically loaded.
*/
rom unsigned 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};
/*
* Equalizer lookuptabes.
* TODO: This table is now hardcoded. To ensure full skinability this table
* should be dynamically loaded.
*/
rom unsigned 4 equalizer_table[66] = {15, 15, 15, 15, 15, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0};
rom unsigned 9 equalizer_table_inv[16] = {448, 444, 440, 436, 432, 428, 424, 420, 416, 412, 408, 404, 400, 396, 392, 382};
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