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/*! \file events.hcc
*
* \section generic This module contains the various actions and events
* that need to be performed.
*
* \section project Project information.
* Project Graphic Equalizer\n
* \author O.M. Schinagl
* \date 20041710
* \version 0.1
*
* \section copyright Copyright
* Copyright ©2004 Koninklijke Philips Electronics N.V. All rights reserved
*
* \section history Change history
* 20041710: O.M. Schinagl\n Initial version
*
*****************************************************************************/
/******** System Includes *************/
#include <stdlib.hch>
#include "pal_master.hch"
/******** Application Includes ********/
#include "configuration.hch"
#include "display_shared.hch"
#include "eventhandler_shared.hch"
#include "events.hch"
#if HAVE_DEBUG
#include "debug.hch"
#endif
ram unsigned 8 presets_default_values[768] = {
#include "presets_hardcoded.txt"
};
/*! \fn void set_preset(unsigned 10 *active_preset,
* unsigned 10 *preset_offset, unsigned 8 new_preset,
* unsigned 4 *equalizer_levels_ptr,
* unsigned 4 *equalizer_levels)
* \brief This function changes the active preset to the new_preset
* received from the userinterface and updates internal pointers.
*
* \param *active_preset Local store that holds the current
* active preset.
* \param *preset_offset Local store that holds the index to the
* current active preset in the presets
* array.
* \param new_preset The new preset.
* \param *equalizer_levels_ptr Pointer pointing to the current
* equalizer settings.
* \param *equalizer_levels Local store with all presets.
*/
inline void set_preset(unsigned 10 *active_preset, unsigned 10 *preset_offset, unsigned 8 new_preset, unsigned 4 *equalizer_levels_ptr, unsigned 4 *equalizer_levels) {
/*
* The active preset is determined by the mask minus an offset. Hence
* ranging our active preset from 0 to 6.
*/
*active_preset = 0 @ new_preset;
/*
* 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 = *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.
*/
equalizer_levels_ptr = &equalizer_levels[*preset_offset];
}
/*
*/
inline unsigned 5 change_volume_from_coordinate(unsigned 11 coordinate, events_t *events, skindata_t *skindata) {
unsigned 5 retval;
unsigned 5 volumeleft;
/*
* Copy the current Y cursor position to the events struct. This we
* need for drawing purposes.
*/
events->volume_position = coordinate;
/*
* 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.
*/
volumeleft = volumecontrol_table[(coordinate -skindata->volume.top) <- 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(!volumeleft, (0x1f -volumeleft), (0x1f -volumeleft));
/*
* Now that we have set the gain, we return it incase someone needs it.
*/
retval = volumeleft;
return retval;
}
/*
*/
inline unsigned 4 change_inputgain_from_coordinate(unsigned 11 coordinate, events_t *events, skindata_t *skindata) {
unsigned 4 retval;
unsigned 4 gainleft;
/*
* Copy the current Y cursor position to the events struct. This we
* then later use for drawing purposes.
*/
events->inputgain_position = coordinate;
/*
* Look the relative y-coordinate up in the inputgain lookup table. We
* make a local copy here because the RC200 call doesn't behave nicely
* when passing anything else.
*/
gainleft = inputgain_table[(coordinate -skindata->inputgain.top) <- 6];
/*
* Finally we set the gain as calculated.
*/
RC200AudioInSetGain(!gainleft, gainleft, gainleft);
/*
* Now that we have set the gain, we return it incase someone needs it.
*/
retval = gainleft;
return retval;
}
/*! \fn void load_preset(unsigned 10 preset, unsigned 4 *equalizer_levels_ptr);
* \brief This function loads 768 4bits presets into the equalizer_levels
* array pointed to by equalizer_levels.
*
* \param *equalizer_levels Location where to store presets loaded
* from blockram.
*
* \return void
* \retval void
*/
void load_preset(unsigned 10 preset, unsigned 4 *equalizer_levels_ptr) {
unsigned 10 equalizer_index;
unsigned 4 temp;
equalizer_index = 0;
while (equalizer_index != 768) {
temp = presets_default_values[preset +(0 @ (equalizer_index \\ 1))][7:4];
equalizer_levels_ptr[equalizer_index] = temp;
temp = presets_default_values[preset +(0 @ (equalizer_index \\ 1))][3:0];
equalizer_levels_ptr[equalizer_index +1] = temp;
equalizer_index += 2;
}
} /* --- load_preset() --- */
/*
* Equalizer lookuptabes.
* TODO: This table is now hardcoded. To ensure full skinability this table
* should be dynamically loaded.
*/
ram unsigned 4 equalizer_table[640] = {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};
ram unsigned 11 equalizer_table_inv[16] = {446, 444, 440, 436, 432, 428, 424, 420, 416, 412, 408, 404, 400, 396, 392, 384};
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