diff options
Diffstat (limited to 'apps')
| -rw-r--r-- | apps/plugins/SOURCES | 1 | ||||
| -rw-r--r-- | apps/plugins/oscilloscope.c | 278 |
2 files changed, 279 insertions, 0 deletions
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES index a42b919a8d..775e20e9ee 100644 --- a/apps/plugins/SOURCES +++ b/apps/plugins/SOURCES @@ -24,6 +24,7 @@ mandelbrot.c minesweeper.c mosaique.c oscillograph.c +oscilloscope.c pong.c rockblox.c sliding_puzzle.c diff --git a/apps/plugins/oscilloscope.c b/apps/plugins/oscilloscope.c new file mode 100644 index 0000000000..b37f473491 --- /dev/null +++ b/apps/plugins/oscilloscope.c @@ -0,0 +1,278 @@ +/*************************************************************************** +* __________ __ ___. +* Open \______ \ ____ ____ | | _\_ |__ _______ ___ +* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / +* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < +* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ +* \/ \/ \/ \/ \/ +* $Id$ +* +* Oscilloscope, with the thought-to-be impossible horizontal aspect! +* +* Copyright (C) 2004 Jens Arnold +* +* All files in this archive are subject to the GNU General Public License. +* See the file COPYING in the source tree root for full license agreement. +* +* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +* KIND, either express or implied. +* +****************************************************************************/ + +#ifndef SIMULATOR /* not for simulator by now */ +#include "plugin.h" + +#ifdef HAVE_LCD_BITMAP /* and also not for the Player */ + +/* The different drawing modes */ +#define DRAW_MODE_FILLED 0 +#define DRAW_MODE_OUTLINE 1 +#define DRAW_MODE_PIXEL 2 +#define DRAW_MODE_COUNT 3 + +#define MAX_PEAK 0x8000 + +/* variable button definitions */ +#if CONFIG_KEYPAD == RECORDER_PAD +#define OSCILLOSCOPE_QUIT BUTTON_OFF +#define OSCILLOSCOPE_SCROLL BUTTON_F1 +#define OSCILLOSCOPE_MODE BUTTON_F2 +#define OSCILLOSCOPE_PAUSE BUTTON_PLAY +#define OSCILLOSCOPE_VOL_UP BUTTON_UP +#define OSCILLOSCOPE_VOL_DOWN BUTTON_DOWN + +#elif CONFIG_KEYPAD == ONDIO_PAD +#define OSCILLOSCOPE_QUIT BUTTON_OFF +#define OSCILLOSCOPE_SCROLL BUTTON_RIGHT +#define OSCILLOSCOPE_MODE BUTTON_MENU +#define OSCILLOSCOPE_PAUSE BUTTON_LEFT +#define OSCILLOSCOPE_VOL_UP BUTTON_UP +#define OSCILLOSCOPE_VOL_DOWN BUTTON_DOWN + +#endif + +/* unsigned 16 bit multiplication (a single instruction on the SH) */ +#define MULU16(a, b) ((unsigned long) \ + (((unsigned short) (a)) * ((unsigned short) (b)))) + +/* global variables */ + +struct plugin_api* rb; /* global api struct pointer */ +int x; +int draw_mode; +bool scroll; +int left_val; +int right_val; +bool new_val; + +/* prototypes */ + +void lcd_scroll_left(int count, bool black_border); +void timer_isr(void); +void cleanup(void *parameter); +enum plugin_status plugin_start(struct plugin_api* api, void* parameter); + +/* implementation */ + +void lcd_scroll_left(int count, bool black_border) +{ + int by; + unsigned filler; + unsigned char *ptr; + + if ((unsigned) count >= LCD_WIDTH) + return; + + filler = black_border ? 0xFF : 0; + + for (by = 0; by < (LCD_HEIGHT/8); by++) + { + ptr = rb->lcd_framebuffer + MULU16(LCD_WIDTH, by); + asm volatile ( + "mov %0,r1 \n" /* check if both source... */ + "or %2,r1 \n" /* ...and offset are even */ + "shlr r1 \n" /* -> lsb = 0 */ + "bf .sl_start2 \n" /* -> copy word-wise */ + + "add #-1,%2 \n" /* copy byte-wise */ + ".sl_loop1: \n" + "mov.b @%0+,r1 \n" + "mov.b r1,@(%2,%0) \n" + "cmp/hi %0,%1 \n" + "bt .sl_loop1 \n" + + "bra .sl_end \n" + "nop \n" + + ".sl_start2: \n" /* copy word-wise */ + "add #-2,%2 \n" + ".sl_loop2: \n" + "mov.w @%0+,r1 \n" + "mov.w r1,@(%2,%0) \n" + "cmp/hi %0,%1 \n" + "bt .sl_loop2 \n" + + ".sl_end: \n" + : /* outputs */ + : /* inputs */ + /* %0 */ "r"(ptr + count), + /* %1 */ "r"(ptr + LCD_WIDTH), + /* %2 */ "z"(-count) + : /* clobbers */ + "r1" + ); + + rb->memset(ptr + LCD_WIDTH - count, filler, count); + } +} + +void timer_isr(void) +{ + static int last_left, last_right; + bool full_update = false; + + if (new_val) + { + if ((unsigned)x >= LCD_WIDTH) + { + if (scroll) + { + lcd_scroll_left(1, false); + x = LCD_WIDTH-1; + full_update = true; + } + else + x = 0; + } + + rb->lcd_clearline(x, 0, x, LCD_HEIGHT-1); + + switch (draw_mode) + { + case DRAW_MODE_FILLED: + rb->lcd_drawline(x, LCD_HEIGHT/2+1, + x, LCD_HEIGHT/2+1 + left_val); + rb->lcd_drawline(x, LCD_HEIGHT/2-1, + x, LCD_HEIGHT/2-1 - right_val); + break; + + case DRAW_MODE_OUTLINE: + if (x > 0) + { + rb->lcd_drawline(x - 1, LCD_HEIGHT/2+1 + last_left, + x, LCD_HEIGHT/2+1 + left_val); + rb->lcd_drawline(x - 1, LCD_HEIGHT/2-1 - last_right, + x, LCD_HEIGHT/2-1 - right_val); + break; + } + /* else fall through */ + + case DRAW_MODE_PIXEL: + rb->lcd_drawpixel(x, LCD_HEIGHT/2+1 + left_val); + rb->lcd_drawpixel(x, LCD_HEIGHT/2-1 - right_val); + break; + } + + if (full_update) + rb->lcd_update(); + else + rb->lcd_update_rect(MAX(x - 1, 0), 0, 2, LCD_HEIGHT); + + last_left = left_val; + last_right = right_val; + x++; + new_val = false; + } +} + +void cleanup(void *parameter) +{ + (void)parameter; + + rb->plugin_unregister_timer(); +} + +enum plugin_status plugin_start(struct plugin_api* api, void* parameter) +{ + int button, vol; + bool exit = false; + bool paused = false; + + TEST_PLUGIN_API(api); + (void)parameter; + rb = api; + + x = 0; + draw_mode = DRAW_MODE_FILLED; + scroll = true; + new_val = false; + + rb->plugin_register_timer(FREQ / 67, 1, timer_isr); + + while (!exit) + { + if (!paused) + { + /* read the volume info from MAS */ + left_val = rb->mas_codec_readreg(0xC) / (MAX_PEAK / (LCD_HEIGHT/2-2)); + right_val = rb->mas_codec_readreg(0xD) / (MAX_PEAK / (LCD_HEIGHT/2-2)); + new_val = true; + } + rb->yield(); + + button = rb->button_get(false); + switch (button) + { + case OSCILLOSCOPE_QUIT: + exit = true; + break; + + case OSCILLOSCOPE_SCROLL: + scroll = !scroll; + break; + + case OSCILLOSCOPE_MODE: + draw_mode++; + draw_mode = draw_mode % DRAW_MODE_COUNT; + break; + + case OSCILLOSCOPE_PAUSE: + paused = !paused; + break; + + case OSCILLOSCOPE_VOL_UP: + case OSCILLOSCOPE_VOL_UP | BUTTON_REPEAT: + vol = rb->global_settings->volume; + if (vol < 100) + { + vol++; + rb->mpeg_sound_set(SOUND_VOLUME, vol); + rb->global_settings->volume = vol; + } + break; + + case OSCILLOSCOPE_VOL_DOWN: + case OSCILLOSCOPE_VOL_DOWN | BUTTON_REPEAT: + vol = rb->global_settings->volume; + if (vol > 0) + { + vol--; + rb->mpeg_sound_set(SOUND_VOLUME, vol); + rb->global_settings->volume = vol; + } + break; + + default: + if (rb->default_event_handler_ex(button, cleanup, NULL) + == SYS_USB_CONNECTED) + return PLUGIN_USB_CONNECTED; + break; + } + + } + + cleanup(NULL); + return PLUGIN_OK; +} +#endif +#endif |