/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2002 Björn Stenberg * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include #include #include #include "config.h" #include "sprintf.h" #include "action.h" #include "dsp.h" #include "sound.h" #include "pcmbuf.h" #include "lang.h" #include "icons.h" #include "screens.h" #include "statusbar.h" #include "viewport.h" #include "font.h" #include "system.h" #include "misc.h" #include "pitchscreen.h" #define PITCH_MODE_ABSOLUTE 1 #define PITCH_MODE_SEMITONE -PITCH_MODE_ABSOLUTE #define ICON_BORDER 12 /* icons are currently 7x8, so add ~2 pixels */ /* on both sides when drawing */ #define PITCH_MAX 2000 #define PITCH_MIN 500 #define PITCH_SMALL_DELTA 1 #define PITCH_BIG_DELTA 10 #define PITCH_NUDGE_DELTA 20 static int pitch_mode = PITCH_MODE_ABSOLUTE; /* 1 - absolute, -1 - semitone */ enum { PITCH_TOP = 0, PITCH_MID, PITCH_BOTTOM, PITCH_ITEM_COUNT, }; static void pitchscreen_fix_viewports(struct viewport *parent, struct viewport pitch_viewports[PITCH_ITEM_COUNT]) { int i, height; height = font_get(parent->font)->height; for (i = 0; i < PITCH_ITEM_COUNT; i++) { pitch_viewports[i] = *parent; pitch_viewports[i].height = height; } pitch_viewports[PITCH_TOP].y += ICON_BORDER; pitch_viewports[PITCH_MID].x += ICON_BORDER; pitch_viewports[PITCH_MID].width = parent->width - ICON_BORDER*2; pitch_viewports[PITCH_MID].height = height * 2; pitch_viewports[PITCH_MID].y += parent->height / 2 - pitch_viewports[PITCH_MID].height / 2; pitch_viewports[PITCH_BOTTOM].y += parent->height - height - ICON_BORDER; } /* must be called before pitchscreen_draw, or within * since it neither clears nor updates the display */ static void pitchscreen_draw_icons (struct screen *display, struct viewport *parent) { display->set_viewport(parent); display->mono_bitmap(bitmap_icons_7x8[Icon_UpArrow], parent->width/2 - 3, 2, 7, 8); display->mono_bitmap(bitmap_icons_7x8[Icon_DownArrow], parent->width /2 - 3, parent->height - 10, 7, 8); display->mono_bitmap(bitmap_icons_7x8[Icon_FastForward], parent->width - 10, parent->height /2 - 4, 7, 8); display->mono_bitmap(bitmap_icons_7x8[Icon_FastBackward], 2, parent->height /2 - 4, 7, 8); display->update_viewport(); } static void pitchscreen_draw (struct screen *display, int max_lines, struct viewport pitch_viewports[PITCH_ITEM_COUNT], int pitch) { unsigned char* ptr; unsigned char buf[32]; int width_val, w, h; bool show_lang_pitch; /* Hide "Pitch up/Pitch down" for a small screen */ if (max_lines >= 5) { /* UP: Pitch Up */ display->set_viewport(&pitch_viewports[PITCH_TOP]); if (pitch_mode == PITCH_MODE_ABSOLUTE) { ptr = str(LANG_PITCH_UP); } else { ptr = str(LANG_PITCH_UP_SEMITONE); } display->getstringsize(ptr,&w,&h); display->clear_viewport(); /* draw text */ display->putsxy((pitch_viewports[PITCH_TOP].width / 2) - (w / 2), 0, ptr); display->update_viewport(); /* DOWN: Pitch Down */ display->set_viewport(&pitch_viewports[PITCH_BOTTOM]); if (pitch_mode == PITCH_MODE_ABSOLUTE) { ptr = str(LANG_PITCH_DOWN); } else { ptr = str(LANG_PITCH_DOWN_SEMITONE); } display->getstringsize(ptr,&w,&h); display->clear_viewport(); /* draw text */ display->putsxy((pitch_viewports[PITCH_BOTTOM].width / 2) - (w / 2), 0, ptr); display->update_viewport(); } display->set_viewport(&pitch_viewports[PITCH_MID]); snprintf((char *)buf, sizeof(buf), "%s", str(LANG_PITCH)); display->getstringsize(buf,&w,&h); /* lets hide LANG_PITCH for smaller screens */ display->clear_viewport(); if ((show_lang_pitch = (max_lines >= 3))) display->putsxy((pitch_viewports[PITCH_MID].width / 2) - (w / 2), 0, buf); /* "XXX.X%" */ snprintf((char *)buf, sizeof(buf), "%d.%d%%", pitch / 10, pitch % 10 ); display->getstringsize(buf,&width_val,&h); display->putsxy((pitch_viewports[PITCH_MID].width / 2) - (width_val / 2), (show_lang_pitch? h : h/2), buf); /* What's wider? LANG_PITCH or the value? * Only interesting if LANG_PITCH is actually drawn */ if (show_lang_pitch && width_val > w) w = width_val; /* Let's treat '+' and '-' as equally wide * This saves a getstringsize call * Also, it wouldn't look nice if -2% shows up, but +2% not */ display->getstringsize("+2%",&width_val,&h); w += width_val*2; /* hide +2%/-2% for a narrow screens */ if (w <= pitch_viewports[PITCH_MID].width) { /* RIGHT: +2% */ display->putsxy(pitch_viewports[PITCH_MID].width - width_val, h /2, "+2%"); /* LEFT: -2% */ display->putsxy(0, h / 2, "-2%"); } display->update_viewport(); display->set_viewport(NULL); } static int pitch_increase(int pitch, int delta, bool allow_cutoff) { int new_pitch; if (delta < 0) { if (pitch + delta >= PITCH_MIN) { new_pitch = pitch + delta; } else { if (!allow_cutoff) { return pitch; } new_pitch = PITCH_MIN; } } else if (delta > 0) { if (pitch + delta <= PITCH_MAX) { new_pitch = pitch + delta; } else { if (!allow_cutoff) { return pitch; } new_pitch = PITCH_MAX; } } else { /* delta == 0 -> no real change */ return pitch; } sound_set_pitch(new_pitch); return new_pitch; } /* Factor for changing the pitch one half tone up. The exact value is 2^(1/12) = 1.05946309436 But we use only integer arithmetics, so take rounded factor multiplied by 10^5=100,000. This is enough to get the same promille values as if we had used floating point (checked with a spread sheet). */ #define PITCH_SEMITONE_FACTOR 105946L /* Some helpful constants. K is the scaling factor for SEMITONE. N is for more accurate rounding KN is K * N */ #define PITCH_K_FCT 100000UL #define PITCH_N_FCT 10 #define PITCH_KN_FCT 1000000UL static int pitch_increase_semitone(int pitch, bool up) { uint32_t tmp; uint32_t round_fct; /* How much to scale down at the end */ tmp = pitch; if (up) { tmp = tmp * PITCH_SEMITONE_FACTOR; round_fct = PITCH_K_FCT; } else { tmp = (tmp * PITCH_KN_FCT) / PITCH_SEMITONE_FACTOR; round_fct = PITCH_N_FCT; } /* Scaling down with rounding */ tmp = (tmp + round_fct / 2) / round_fct; return pitch_increase(pitch, tmp - pitch, false); } /* returns: 0 on exit 1 if USB was connected */ int gui_syncpitchscreen_run(void) { int button, i; int pitch = sound_get_pitch(); int new_pitch, delta = 0; bool nudged = false; bool exit = false; /* should maybe be passed per parameter later, not needed for now */ struct viewport parent[NB_SCREENS]; struct viewport pitch_viewports[NB_SCREENS][PITCH_ITEM_COUNT]; int max_lines[NB_SCREENS]; /* initialize pitchscreen vps */ FOR_NB_SCREENS(i) { screens[i].clear_display(); viewport_set_defaults(&parent[i], i); max_lines[i] = viewport_get_nb_lines(&parent[i]); pitchscreen_fix_viewports(&parent[i], pitch_viewports[i]); /* also, draw the icons now, it's only needed once */ pitchscreen_draw_icons(&screens[i], &parent[i]); } #if CONFIG_CODEC == SWCODEC pcmbuf_set_low_latency(true); #endif while (!exit) { FOR_NB_SCREENS(i) pitchscreen_draw(&screens[i], max_lines[i], pitch_viewports[i], pitch); button = get_action(CONTEXT_PITCHSCREEN,HZ); switch (button) { case ACTION_PS_INC_SMALL: delta = PITCH_SMALL_DELTA; break; case ACTION_PS_INC_BIG: delta = PITCH_BIG_DELTA; break; case ACTION_PS_DEC_SMALL: delta = -PITCH_SMALL_DELTA; break; case ACTION_PS_DEC_BIG: delta = -PITCH_BIG_DELTA; break; case ACTION_PS_NUDGE_RIGHT: new_pitch = pitch_increase(pitch, PITCH_NUDGE_DELTA, false); nudged = (new_pitch != pitch); pitch = new_pitch; break; case ACTION_PS_NUDGE_RIGHTOFF: if (nudged) { pitch = pitch_increase(pitch, -PITCH_NUDGE_DELTA, false); } nudged = false; break; case ACTION_PS_NUDGE_LEFT: new_pitch = pitch_increase(pitch, -PITCH_NUDGE_DELTA, false); nudged = (new_pitch != pitch); pitch = new_pitch; break; case ACTION_PS_NUDGE_LEFTOFF: if (nudged) { pitch = pitch_increase(pitch, PITCH_NUDGE_DELTA, false); } nudged = false; break; case ACTION_PS_RESET: pitch = 1000; sound_set_pitch( pitch ); break; case ACTION_PS_TOGGLE_MODE: pitch_mode = -pitch_mode; break; case ACTION_PS_EXIT: exit = true; break; default: if(default_event_handler(button) == SYS_USB_CONNECTED) return 1; break; } if(delta) { if (pitch_mode == PITCH_MODE_ABSOLUTE) { pitch = pitch_increase(pitch, delta, true); } else { pitch = pitch_increase_semitone(pitch, delta > 0 ? true:false); } delta = 0; } } #if CONFIG_CODEC == SWCODEC pcmbuf_set_low_latency(false); #endif return 0; }