| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2005 by Richard S. La Charité III |
| * |
| * 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. |
| * |
| ****************************************************************************/ |
| |
| #include "config.h" |
| #include "cpu.h" |
| #include "lcd-remote.h" |
| #include "kernel.h" |
| #include "thread.h" |
| #include <string.h> |
| #include <stdlib.h> |
| #include "file.h" |
| #include "debug.h" |
| #include "system.h" |
| #include "font.h" |
| |
| /* All zeros and ones bitmaps for area filling */ |
| static const unsigned char zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
| static const unsigned char ones[8] = { |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
| }; |
| |
| static int curfont = FONT_SYSFIXED; |
| static int xmargin = 0; |
| static int ymargin = 0; |
| #ifndef SIMULATOR |
| static int xoffset; /* needed for flip */ |
| #endif |
| |
| unsigned char lcd_remote_framebuffer[LCD_REMOTE_HEIGHT/8][LCD_REMOTE_WIDTH] |
| #ifndef SIMULATOR |
| __attribute__ ((section(".idata"))) |
| #endif |
| ; |
| |
| #define SCROLL_SPACING 3 |
| #define SCROLLABLE_LINES 26 |
| |
| struct scrollinfo { |
| char line[MAX_PATH + LCD_REMOTE_WIDTH/2 + SCROLL_SPACING + 2]; |
| int len; /* length of line in chars */ |
| int width; /* length of line in pixels */ |
| int offset; |
| int startx; |
| bool backward; /* scroll presently forward or backward? */ |
| bool bidir; |
| bool invert; /* invert the scrolled text */ |
| long start_tick; |
| }; |
| |
| static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */ |
| |
| #ifndef SIMULATOR |
| static int countdown; /* for remote plugging debounce */ |
| static bool last_remote_status = false; |
| static bool init_remote = false; /* scroll thread should init lcd */ |
| static bool remote_initialized = false; |
| |
| /* cached settings values, for hotplug init */ |
| static bool cached_invert = false; |
| static bool cached_flip = false; |
| static int cached_contrast = 32; |
| static int cached_roll = 0; |
| |
| static void scroll_thread(void); |
| static long scroll_stack[DEFAULT_STACK_SIZE/sizeof(long)]; |
| #endif |
| static const char scroll_name[] = "remote_scroll"; |
| static char scroll_ticks = 12; /* # of ticks between updates*/ |
| static int scroll_delay = HZ/2; /* ticks delay before start */ |
| static char scroll_step = 6; /* pixels per scroll step */ |
| static int bidir_limit = 50; /* percent */ |
| static struct scrollinfo scroll[SCROLLABLE_LINES]; |
| |
| |
| #define CS_LO GPIO1_OUT &= ~0x00000004 |
| #define CS_HI GPIO1_OUT |= 0x00000004 |
| #define CLK_LO GPIO_OUT &= ~0x10000000 |
| #define CLK_HI GPIO_OUT |= 0x10000000 |
| #define DATA_LO GPIO1_OUT &= ~0x00040000 |
| #define DATA_HI GPIO1_OUT |= 0x00040000 |
| #define RS_LO GPIO_OUT &= ~0x00010000 |
| #define RS_HI GPIO_OUT |= 0x00010000 |
| |
| /* delay loop */ |
| #define DELAY do { int _x; for(_x=0;_x<3;_x++);} while (0) |
| |
| #ifndef SIMULATOR |
| void lcd_remote_backlight_on(void) |
| { |
| GPIO_OUT &= ~0x00000800; |
| } |
| |
| void lcd_remote_backlight_off(void) |
| { |
| GPIO_OUT |= 0x00000800; |
| } |
| |
| void lcd_remote_write_command(int cmd) |
| { |
| int i; |
| |
| CS_LO; |
| RS_LO; |
| |
| for (i = 0; i < 8; i++) |
| { |
| if (cmd & 0x80) |
| DATA_HI; |
| else |
| DATA_LO; |
| |
| CLK_HI; |
| cmd <<= 1; |
| DELAY; |
| |
| CLK_LO; |
| } |
| |
| CS_HI; |
| } |
| |
| void lcd_remote_write_data(const unsigned char* p_bytes, int count) |
| { |
| int i, j; |
| int data; |
| |
| CS_LO; |
| RS_HI; |
| |
| for (i = 0; i < count; i++) |
| { |
| data = p_bytes[i]; |
| |
| for (j = 0; j < 8; j++) |
| { |
| if (data & 0x80) |
| DATA_HI; |
| else |
| DATA_LO; |
| |
| CLK_HI; |
| data <<= 1; |
| DELAY; |
| |
| CLK_LO; |
| } |
| } |
| |
| CS_HI; |
| } |
| |
| void lcd_remote_write_command_ex(int cmd, int data) |
| { |
| int i; |
| |
| CS_LO; |
| RS_LO; |
| |
| for (i = 0; i < 8; i++) |
| { |
| if (cmd & 0x80) |
| DATA_HI; |
| else |
| DATA_LO; |
| |
| CLK_HI; |
| cmd <<= 1; |
| DELAY; |
| |
| CLK_LO; |
| } |
| |
| for (i = 0; i < 8; i++) |
| { |
| if (data & 0x80) |
| DATA_HI; |
| else |
| DATA_LO; |
| |
| CLK_HI; |
| data <<= 1; |
| DELAY; |
| |
| CLK_LO; |
| } |
| |
| CS_HI; |
| } |
| |
| #define LCD_REMOTE_CNTL_ADC_NORMAL 0xa0 |
| #define LCD_REMOTE_CNTL_ADC_REVERSE 0xa1 |
| #define LCD_REMOTE_CNTL_SHL_NORMAL 0xc0 |
| #define LCD_REMOTE_CNTL_SHL_REVERSE 0xc8 |
| #define LCD_REMOTE_CNTL_DISPLAY_ON_OFF 0xae |
| #define LCD_REMOTE_CNTL_ENTIRE_ON_OFF 0xa4 |
| #define LCD_REMOTE_CNTL_REVERSE_ON_OFF 0xa6 |
| #define LCD_REMOTE_CNTL_NOP 0xe3 |
| #define LCD_REMOTE_CNTL_POWER_CONTROL 0x2b |
| #define LCD_REMOTE_CNTL_SELECT_REGULATOR 0x20 |
| #define LCD_REMOTE_CNTL_SELECT_BIAS 0xa2 |
| #define LCD_REMOTE_CNTL_SELECT_VOLTAGE 0x81 |
| #define LCD_REMOTE_CNTL_INIT_LINE 0x40 |
| #define LCD_REMOTE_CNTL_SET_PAGE_ADDRESS 0xB0 |
| |
| #define LCD_REMOTE_CNTL_HIGHCOL 0x10 /* Upper column address */ |
| #define LCD_REMOTE_CNTL_LOWCOL 0x00 /* Lower column address */ |
| |
| void lcd_remote_powersave(bool on) |
| { |
| if (remote_initialized) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | (on ? 0 : 1)); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_ENTIRE_ON_OFF | (on ? 1 : 0)); |
| } |
| } |
| |
| void lcd_remote_set_contrast(int val) |
| { |
| cached_contrast = val; |
| if (remote_initialized) |
| lcd_remote_write_command_ex(LCD_REMOTE_CNTL_SELECT_VOLTAGE, val); |
| } |
| |
| void lcd_remote_set_invert_display(bool yesno) |
| { |
| cached_invert = yesno; |
| if (remote_initialized) |
| lcd_remote_write_command(LCD_REMOTE_CNTL_REVERSE_ON_OFF | yesno); |
| } |
| |
| /* turn the display upside down (call lcd_remote_update() afterwards) */ |
| void lcd_remote_set_flip(bool yesno) |
| { |
| cached_flip = yesno; |
| if (yesno) |
| { |
| xoffset = 0; |
| if (remote_initialized) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_ADC_NORMAL); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SHL_NORMAL); |
| } |
| } |
| else |
| { |
| xoffset = 132 - LCD_REMOTE_WIDTH; |
| if (remote_initialized) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_ADC_REVERSE); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SHL_REVERSE); |
| } |
| } |
| } |
| |
| int lcd_remote_default_contrast(void) |
| { |
| return 32; |
| } |
| |
| #endif |
| |
| void lcd_remote_bitmap(const unsigned char *src, int x, int y, int nx, int ny, bool clear) __attribute__ ((section (".icode"))); |
| void lcd_remote_bitmap(const unsigned char *src, int x, int y, int nx, int ny, bool clear) |
| { |
| const unsigned char *src_col; |
| unsigned char *dst, *dst_col; |
| unsigned int data, mask1, mask2, mask3, mask4; |
| int stride, shift; |
| |
| if (((unsigned) x >= LCD_REMOTE_WIDTH) || ((unsigned) y >= LCD_REMOTE_HEIGHT)) |
| { |
| return; |
| } |
| |
| stride = nx; /* otherwise right-clipping will destroy the image */ |
| |
| if (((unsigned) (x + nx)) >= LCD_REMOTE_WIDTH) |
| { |
| nx = LCD_REMOTE_WIDTH - x; |
| } |
| |
| if (((unsigned) (y + ny)) >= LCD_REMOTE_HEIGHT) |
| { |
| ny = LCD_REMOTE_HEIGHT - y; |
| } |
| |
| dst = &lcd_remote_framebuffer[y >> 3][x]; |
| shift = y & 7; |
| |
| if (!shift && clear) /* shortcut for byte aligned match with clear */ |
| { |
| while (ny >= 8) /* all full rows */ |
| { |
| memcpy(dst, src, nx); |
| src += stride; |
| dst += LCD_REMOTE_WIDTH; |
| ny -= 8; |
| } |
| if (ny == 0) /* nothing left to do? */ |
| { |
| return; |
| } |
| /* last partial row to do by default routine */ |
| } |
| |
| ny += shift; |
| |
| /* Calculate bit masks */ |
| mask4 = ~(0xfe << ((ny-1) & 7)); /* data mask for last partial row */ |
| |
| if (clear) |
| { |
| mask1 = ~(0xff << shift); /* clearing of first partial row */ |
| mask2 = 0; /* clearing of intermediate (full) rows */ |
| mask3 = ~mask4; /* clearing of last partial row */ |
| if (ny <= 8) |
| { |
| mask3 |= mask1; |
| } |
| } |
| else |
| { |
| mask1 = mask2 = mask3 = 0xff; |
| } |
| |
| /* Loop for each column */ |
| for (x = 0; x < nx; x++) |
| { |
| src_col = src++; |
| dst_col = dst++; |
| data = 0; |
| y = 0; |
| |
| if (ny > 8) |
| { |
| /* First partial row */ |
| data = *src_col << shift; |
| *dst_col = (*dst_col & mask1) | data; |
| src_col += stride; |
| dst_col += LCD_REMOTE_WIDTH; |
| data >>= 8; |
| |
| /* Intermediate rows */ |
| for (y = 8; y < ny-8; y += 8) |
| { |
| data |= *src_col << shift; |
| *dst_col = (*dst_col & mask2) | data; |
| src_col += stride; |
| dst_col += LCD_REMOTE_WIDTH; |
| data >>= 8; |
| } |
| } |
| |
| /* Last partial row */ |
| if (y + shift < ny) |
| { |
| data |= *src_col << shift; |
| } |
| |
| *dst_col = (*dst_col & mask3) | (data & mask4); |
| } |
| } |
| |
| void lcd_remote_drawrect(int x, int y, int nx, int ny) |
| { |
| int i; |
| |
| if (x > LCD_REMOTE_WIDTH) |
| { |
| return; |
| } |
| |
| if (y > LCD_REMOTE_HEIGHT) |
| { |
| return; |
| } |
| |
| if (x + nx > LCD_REMOTE_WIDTH) |
| { |
| nx = LCD_REMOTE_WIDTH - x; |
| } |
| |
| if (y + ny > LCD_REMOTE_HEIGHT) |
| { |
| ny = LCD_REMOTE_HEIGHT - y; |
| } |
| |
| /* vertical lines */ |
| for (i = 0; i < ny; i++) |
| { |
| REMOTE_DRAW_PIXEL(x, (y + i)); |
| REMOTE_DRAW_PIXEL((x + nx - 1), (y + i)); |
| } |
| |
| /* horizontal lines */ |
| for (i = 0; i < nx; i++) |
| { |
| REMOTE_DRAW_PIXEL((x + i),y); |
| REMOTE_DRAW_PIXEL((x + i),(y + ny - 1)); |
| } |
| } |
| |
| void lcd_remote_clear_display(void) |
| { |
| memset(lcd_remote_framebuffer, 0, sizeof lcd_remote_framebuffer); |
| } |
| |
| #ifndef SIMULATOR |
| |
| static void remote_lcd_init(void) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_BIAS | 0x0); |
| |
| lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x5); |
| sleep(1); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x6); |
| sleep(1); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x7); |
| |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_REGULATOR | 0x4); // 0x4 Select regulator @ 5.0 (default); |
| |
| sleep(1); |
| |
| lcd_remote_write_command(LCD_REMOTE_CNTL_INIT_LINE | 0x0); // init line |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | 0x0); // page address |
| lcd_remote_write_command_ex(0x10, 0x00); // Column MSB + LSB |
| |
| lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | 1); |
| |
| remote_initialized = true; |
| |
| lcd_remote_set_flip(cached_flip); |
| lcd_remote_set_contrast(cached_contrast); |
| lcd_remote_set_invert_display(cached_invert); |
| lcd_remote_roll(cached_roll); |
| } |
| |
| static void remote_tick(void) |
| { |
| bool current_status; |
| |
| current_status = ((GPIO_READ & 0x40000000) == 0); |
| /* Only report when the status has changed */ |
| if (current_status != last_remote_status) |
| { |
| last_remote_status = current_status; |
| countdown = current_status ? HZ : 1; |
| } |
| else |
| { |
| /* Count down until it gets negative */ |
| if (countdown >= 0) |
| countdown--; |
| |
| if (countdown == 0) |
| { |
| if (current_status) |
| { |
| init_remote = true; |
| /* request init in scroll_thread */ |
| } |
| else |
| { |
| CLK_LO; |
| CS_HI; |
| remote_initialized = false; |
| } |
| } |
| } |
| } |
| |
| void lcd_remote_init(void) |
| { |
| GPIO_FUNCTION |= 0x10010800; /* GPIO11: Backlight |
| GPIO16: RS |
| GPIO28: CLK */ |
| |
| GPIO1_FUNCTION |= 0x00040004; /* GPIO34: CS |
| GPIO50: Data */ |
| GPIO_ENABLE |= 0x10010800; |
| GPIO1_ENABLE |= 0x00040004; |
| |
| lcd_remote_clear_display(); |
| |
| tick_add_task(remote_tick); |
| create_thread(scroll_thread, scroll_stack, |
| sizeof(scroll_stack), scroll_name); |
| } |
| |
| |
| /* |
| * Update the display. |
| * This must be called after all other LCD functions that change the display. |
| */ |
| void lcd_remote_update (void) __attribute__ ((section (".icode"))); |
| void lcd_remote_update (void) |
| { |
| int y; |
| |
| if (!remote_initialized) |
| return; |
| |
| /* Copy display bitmap to hardware */ |
| for (y = 0; y < LCD_REMOTE_HEIGHT / 8; y++) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_HIGHCOL | ((xoffset>>4) & 0xf)); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_LOWCOL | (xoffset & 0xf)); |
| lcd_remote_write_data(lcd_remote_framebuffer[y], LCD_REMOTE_WIDTH); |
| } |
| } |
| |
| /* |
| * Update a fraction of the display. |
| */ |
| void lcd_remote_update_rect (int, int, int, int) __attribute__ ((section (".icode"))); |
| void lcd_remote_update_rect (int x_start, int y, |
| int width, int height) |
| { |
| int ymax; |
| |
| if (!remote_initialized) |
| return; |
| |
| /* The Y coordinates have to work on even 8 pixel rows */ |
| ymax = (y + height-1)/8; |
| y /= 8; |
| |
| if(x_start + width > LCD_REMOTE_WIDTH) |
| width = LCD_REMOTE_WIDTH - x_start; |
| if (width <= 0) |
| return; /* nothing left to do, 0 is harmful to lcd_write_data() */ |
| if(ymax >= LCD_REMOTE_HEIGHT/8) |
| ymax = LCD_REMOTE_HEIGHT/8-1; |
| |
| /* Copy specified rectange bitmap to hardware */ |
| for (; y <= ymax; y++) |
| { |
| lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_HIGHCOL |
| | (((x_start+xoffset)>>4) & 0xf)); |
| lcd_remote_write_command(LCD_REMOTE_CNTL_LOWCOL |
| | ((x_start+xoffset) & 0xf)); |
| lcd_remote_write_data(&lcd_remote_framebuffer[y][x_start], width); |
| } |
| } |
| |
| /** |
| * Rolls up the lcd display by the specified amount of lines. |
| * Lines that are rolled out over the top of the screen are |
| * rolled in from the bottom again. This is a hardware |
| * remapping only and all operations on the lcd are affected. |
| * -> |
| * @param int lines - The number of lines that are rolled. |
| * The value must be 0 <= pixels < LCD_REMOTE_HEIGHT. |
| */ |
| void lcd_remote_roll(int lines) |
| { |
| char data[2]; |
| |
| cached_roll = lines; |
| |
| if (remote_initialized) |
| { |
| lines &= LCD_REMOTE_HEIGHT-1; |
| data[0] = lines & 0xff; |
| data[1] = lines >> 8; |
| |
| lcd_remote_write_command(LCD_REMOTE_CNTL_INIT_LINE | 0x0); // init line |
| lcd_remote_write_data(data, 2); |
| } |
| } |
| |
| #endif |
| |
| |
| void lcd_remote_setmargins(int x, int y) |
| { |
| xmargin = x; |
| ymargin = y; |
| } |
| |
| int lcd_remote_getxmargin(void) |
| { |
| return xmargin; |
| } |
| |
| int lcd_remote_getymargin(void) |
| { |
| return ymargin; |
| } |
| |
| |
| void lcd_remote_setfont(int newfont) |
| { |
| curfont = newfont; |
| } |
| |
| int lcd_remote_getstringsize(const unsigned char *str, int *w, int *h) |
| { |
| return font_getstringsize(str, w, h, curfont); |
| } |
| |
| /* put a string at a given char position */ |
| void lcd_remote_puts(int x, int y, const unsigned char *str) |
| { |
| lcd_remote_puts_style(x, y, str, STYLE_DEFAULT); |
| } |
| |
| void lcd_remote_puts_style(int x, int y, const unsigned char *str, int style) |
| { |
| int xpos,ypos,w,h; |
| |
| /* make sure scrolling is turned off on the line we are updating */ |
| //scrolling_lines &= ~(1 << y); |
| |
| if(!str || !str[0]) |
| return; |
| |
| lcd_remote_getstringsize(str, &w, &h); |
| xpos = xmargin + x*w / strlen(str); |
| ypos = ymargin + y*h; |
| lcd_remote_putsxy(xpos, ypos, str); |
| lcd_remote_clearrect(xpos + w, ypos, LCD_REMOTE_WIDTH - (xpos + w), h); |
| if (style & STYLE_INVERT) |
| lcd_remote_invertrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, h); |
| |
| } |
| |
| /* put a string at a given pixel position, skipping first ofs pixel columns */ |
| static void lcd_remote_putsxyofs(int x, int y, int ofs, const unsigned char *str) |
| { |
| int ch; |
| struct font* pf = font_get(curfont); |
| |
| while ((ch = *str++) != '\0' && x < LCD_REMOTE_WIDTH) |
| { |
| int gwidth, width; |
| |
| /* check input range */ |
| if (ch < pf->firstchar || ch >= pf->firstchar+pf->size) |
| ch = pf->defaultchar; |
| ch -= pf->firstchar; |
| |
| /* get proportional width and glyph bits */ |
| gwidth = pf->width ? pf->width[ch] : pf->maxwidth; |
| width = MIN (gwidth, LCD_REMOTE_WIDTH - x); |
| |
| if (ofs != 0) |
| { |
| if (ofs > width) |
| { |
| ofs -= width; |
| continue; |
| } |
| width -= ofs; |
| } |
| |
| if (width > 0) |
| { |
| unsigned int i; |
| const unsigned char* bits = pf->bits + |
| (pf->offset ? pf->offset[ch] |
| : ((pf->height + 7) / 8 * pf->maxwidth * ch)); |
| |
| if (ofs != 0) |
| { |
| for (i = 0; i < pf->height; i += 8) |
| { |
| lcd_remote_bitmap (bits + ofs, x, y + i, width, |
| MIN(8, pf->height - i), true); |
| bits += gwidth; |
| } |
| } |
| else |
| lcd_remote_bitmap ((unsigned char*) bits, x, y, gwidth, |
| pf->height, true); |
| x += width; |
| } |
| ofs = 0; |
| } |
| } |
| |
| /* put a string at a given pixel position */ |
| void lcd_remote_putsxy(int x, int y, const unsigned char *str) |
| { |
| lcd_remote_putsxyofs(x, y, 0, str); |
| } |
| |
| |
| /* |
| * Clear a rectangular area at (x, y), size (nx, ny) |
| */ |
| void lcd_remote_clearrect (int x, int y, int nx, int ny) |
| { |
| int i; |
| for (i = 0; i < nx; i++) |
| lcd_remote_bitmap (zeros, x+i, y, 1, ny, true); |
| } |
| |
| /* |
| * Fill a rectangular area at (x, y), size (nx, ny) |
| */ |
| void lcd_remote_fillrect (int x, int y, int nx, int ny) |
| { |
| int i; |
| for (i = 0; i < nx; i++) |
| lcd_remote_bitmap (ones, x+i, y, 1, ny, true); |
| } |
| |
| /* Invert a rectangular area at (x, y), size (nx, ny) */ |
| void lcd_remote_invertrect (int x, int y, int nx, int ny) |
| { |
| int i, j; |
| |
| if (x > LCD_REMOTE_WIDTH) |
| return; |
| if (y > LCD_REMOTE_HEIGHT) |
| return; |
| |
| if (x + nx > LCD_REMOTE_WIDTH) |
| nx = LCD_REMOTE_WIDTH - x; |
| if (y + ny > LCD_REMOTE_HEIGHT) |
| ny = LCD_REMOTE_HEIGHT - y; |
| |
| for (i = 0; i < nx; i++) |
| for (j = 0; j < ny; j++) |
| REMOTE_INVERT_PIXEL((x + i), (y + j)); |
| } |
| |
| /* Reverse the invert setting of the scrolling line (if any) at given char |
| position. Setting will go into affect next time line scrolls. */ |
| void lcd_remote_invertscroll(int x, int y) |
| { |
| struct scrollinfo* s; |
| |
| (void)x; |
| |
| s = &scroll[y]; |
| s->invert = !s->invert; |
| } |
| |
| void lcd_remote_drawline( int x1, int y1, int x2, int y2 ) |
| { |
| int numpixels; |
| int i; |
| int deltax, deltay; |
| int d, dinc1, dinc2; |
| int x, xinc1, xinc2; |
| int y, yinc1, yinc2; |
| |
| deltax = abs(x2 - x1); |
| deltay = abs(y2 - y1); |
| |
| if(deltax >= deltay) |
| { |
| numpixels = deltax; |
| d = 2 * deltay - deltax; |
| dinc1 = deltay * 2; |
| dinc2 = (deltay - deltax) * 2; |
| xinc1 = 1; |
| xinc2 = 1; |
| yinc1 = 0; |
| yinc2 = 1; |
| } |
| else |
| { |
| numpixels = deltay; |
| d = 2 * deltax - deltay; |
| dinc1 = deltax * 2; |
| dinc2 = (deltax - deltay) * 2; |
| xinc1 = 0; |
| xinc2 = 1; |
| yinc1 = 1; |
| yinc2 = 1; |
| } |
| numpixels++; /* include endpoints */ |
| |
| if(x1 > x2) |
| { |
| xinc1 = -xinc1; |
| xinc2 = -xinc2; |
| } |
| |
| if(y1 > y2) |
| { |
| yinc1 = -yinc1; |
| yinc2 = -yinc2; |
| } |
| |
| x = x1; |
| y = y1; |
| |
| for(i=0; i<numpixels; i++) |
| { |
| REMOTE_DRAW_PIXEL(x,y); |
| |
| if(d < 0) |
| { |
| d += dinc1; |
| x += xinc1; |
| y += yinc1; |
| } |
| else |
| { |
| d += dinc2; |
| x += xinc2; |
| y += yinc2; |
| } |
| } |
| } |
| |
| void lcd_remote_clearline( int x1, int y1, int x2, int y2 ) |
| { |
| int numpixels; |
| int i; |
| int deltax, deltay; |
| int d, dinc1, dinc2; |
| int x, xinc1, xinc2; |
| int y, yinc1, yinc2; |
| |
| deltax = abs(x2 - x1); |
| deltay = abs(y2 - y1); |
| |
| if(deltax >= deltay) |
| { |
| numpixels = deltax; |
| d = 2 * deltay - deltax; |
| dinc1 = deltay * 2; |
| dinc2 = (deltay - deltax) * 2; |
| xinc1 = 1; |
| xinc2 = 1; |
| yinc1 = 0; |
| yinc2 = 1; |
| } |
| else |
| { |
| numpixels = deltay; |
| d = 2 * deltax - deltay; |
| dinc1 = deltax * 2; |
| dinc2 = (deltax - deltay) * 2; |
| xinc1 = 0; |
| xinc2 = 1; |
| yinc1 = 1; |
| yinc2 = 1; |
| } |
| numpixels++; /* include endpoints */ |
| |
| if(x1 > x2) |
| { |
| xinc1 = -xinc1; |
| xinc2 = -xinc2; |
| } |
| |
| if(y1 > y2) |
| { |
| yinc1 = -yinc1; |
| yinc2 = -yinc2; |
| } |
| |
| x = x1; |
| y = y1; |
| |
| for(i=0; i<numpixels; i++) |
| { |
| REMOTE_CLEAR_PIXEL(x,y); |
| |
| if(d < 0) |
| { |
| d += dinc1; |
| x += xinc1; |
| y += yinc1; |
| } |
| else |
| { |
| d += dinc2; |
| x += xinc2; |
| y += yinc2; |
| } |
| } |
| } |
| |
| /* |
| * Set a single pixel |
| */ |
| void lcd_remote_drawpixel(int x, int y) |
| { |
| REMOTE_DRAW_PIXEL(x,y); |
| } |
| |
| /* |
| * Clear a single pixel |
| */ |
| void lcd_remote_clearpixel(int x, int y) |
| { |
| REMOTE_CLEAR_PIXEL(x,y); |
| } |
| |
| /* |
| * Invert a single pixel |
| */ |
| void lcd_remote_invertpixel(int x, int y) |
| { |
| REMOTE_INVERT_PIXEL(x,y); |
| } |
| |
| void lcd_remote_puts_scroll(int x, int y, const unsigned char *string) |
| { |
| lcd_remote_puts_scroll_style(x, y, string, STYLE_DEFAULT); |
| } |
| |
| void lcd_remote_puts_scroll_style(int x, int y, const unsigned char *string, int style) |
| { |
| struct scrollinfo* s; |
| int w, h; |
| |
| s = &scroll[y]; |
| |
| s->start_tick = current_tick + scroll_delay; |
| s->invert = false; |
| if (style & STYLE_INVERT) { |
| s->invert = true; |
| lcd_remote_puts_style(x,y,string,STYLE_INVERT); |
| } |
| else |
| lcd_remote_puts(x,y,string); |
| |
| lcd_remote_getstringsize(string, &w, &h); |
| |
| if (LCD_REMOTE_WIDTH - x * 8 - xmargin < w) { |
| /* prepare scroll line */ |
| char *end; |
| |
| memset(s->line, 0, sizeof s->line); |
| strcpy(s->line, string); |
| |
| /* get width */ |
| s->width = lcd_remote_getstringsize(s->line, &w, &h); |
| |
| /* scroll bidirectional or forward only depending on the string |
| width */ |
| if ( bidir_limit ) { |
| s->bidir = s->width < (LCD_REMOTE_WIDTH - xmargin) * |
| (100 + bidir_limit) / 100; |
| } |
| else |
| s->bidir = false; |
| |
| if (!s->bidir) { /* add spaces if scrolling in the round */ |
| strcat(s->line, " "); |
| /* get new width incl. spaces */ |
| s->width = lcd_remote_getstringsize(s->line, &w, &h); |
| } |
| |
| end = strchr(s->line, '\0'); |
| strncpy(end, string, LCD_REMOTE_WIDTH/2); |
| |
| s->len = strlen(string); |
| s->offset = 0; |
| s->startx = x; |
| s->backward = false; |
| scrolling_lines |= (1<<y); |
| } |
| else |
| /* force a bit switch-off since it doesn't scroll */ |
| scrolling_lines &= ~(1<<y); |
| } |
| |
| void lcd_remote_stop_scroll(void) |
| { |
| scrolling_lines=0; |
| } |
| |
| static const char scroll_tick_table[16] = { |
| /* Hz values: |
| 1, 1.25, 1.55, 2, 2.5, 3.12, 4, 5, 6.25, 8.33, 10, 12.5, 16.7, 20, 25, 33 */ |
| 100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3 |
| }; |
| |
| void lcd_remote_scroll_speed(int speed) |
| { |
| scroll_ticks = scroll_tick_table[speed]; |
| } |
| |
| void lcd_remote_scroll_step(int step) |
| { |
| scroll_step = step; |
| } |
| |
| void lcd_remote_scroll_delay(int ms) |
| { |
| scroll_delay = ms / (HZ / 10); |
| } |
| |
| void lcd_remote_bidir_scroll(int percent) |
| { |
| bidir_limit = percent; |
| } |
| |
| #ifndef SIMULATOR |
| static void scroll_thread(void) |
| { |
| struct font* pf; |
| struct scrollinfo* s; |
| int index; |
| int xpos, ypos; |
| |
| /* initialize scroll struct array */ |
| scrolling_lines = 0; |
| |
| while ( 1 ) { |
| |
| if (init_remote) /* request to initialize the remote lcd */ |
| { |
| init_remote = false; /* clear request */ |
| remote_lcd_init(); |
| lcd_remote_update(); |
| } |
| |
| for ( index = 0; index < SCROLLABLE_LINES; index++ ) { |
| /* really scroll? */ |
| if ( !(scrolling_lines&(1<<index)) ) |
| continue; |
| |
| s = &scroll[index]; |
| |
| /* check pause */ |
| if (TIME_BEFORE(current_tick, s->start_tick)) |
| continue; |
| |
| if (s->backward) |
| s->offset -= scroll_step; |
| else |
| s->offset += scroll_step; |
| |
| pf = font_get(curfont); |
| xpos = xmargin + s->startx * s->width / s->len; |
| ypos = ymargin + index * pf->height; |
| |
| if (s->bidir) { /* scroll bidirectional */ |
| if (s->offset <= 0) { |
| /* at beginning of line */ |
| s->offset = 0; |
| s->backward = false; |
| s->start_tick = current_tick + scroll_delay * 2; |
| } |
| if (s->offset >= s->width - (LCD_REMOTE_WIDTH - xpos)) { |
| /* at end of line */ |
| s->offset = s->width - (LCD_REMOTE_WIDTH - xpos); |
| s->backward = true; |
| s->start_tick = current_tick + scroll_delay * 2; |
| } |
| } |
| else { |
| /* scroll forward the whole time */ |
| if (s->offset >= s->width) |
| s->offset %= s->width; |
| } |
| |
| lcd_remote_clearrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height); |
| lcd_remote_putsxyofs(xpos, ypos, s->offset, s->line); |
| if (s->invert) |
| lcd_remote_invertrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height); |
| lcd_remote_update_rect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height); |
| } |
| |
| sleep(scroll_ticks); |
| } |
| } |
| #endif /* SIMULATOR */ |
| |