diff options
Diffstat (limited to 'firmware/drivers/lcd-1bit-vert.c')
| -rwxr-xr-x | firmware/drivers/lcd-1bit-vert.c | 860 |
1 files changed, 860 insertions, 0 deletions
diff --git a/firmware/drivers/lcd-1bit-vert.c b/firmware/drivers/lcd-1bit-vert.c new file mode 100755 index 0000000000..6ae92af72b --- /dev/null +++ b/firmware/drivers/lcd-1bit-vert.c @@ -0,0 +1,860 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Alan Korr + * + * 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 "lcd.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" +#include "hwcompat.h" +#include "rbunicode.h" +#include "bidi.h" + +/*** definitions ***/ + +#define SCROLLABLE_LINES ((LCD_HEIGHT+4)/5 < 32 ? (LCD_HEIGHT+4)/5 : 32) + +/*** globals ***/ + +unsigned char lcd_framebuffer[LCD_HEIGHT/8][LCD_WIDTH]; + +static int drawmode = DRMODE_SOLID; +static int xmargin = 0; +static int ymargin = 0; +static int curfont = FONT_SYSFIXED; + +/* scrolling */ +static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */ +static void scroll_thread(void); +static char scroll_stack[DEFAULT_STACK_SIZE]; +static const char scroll_name[] = "scroll"; +static int scroll_ticks = 12; /* # of ticks between updates*/ +static int scroll_delay = HZ/2; /* ticks delay before start */ +static int scroll_step = 6; /* pixels per scroll step */ +static int bidir_limit = 50; /* percent */ +static struct scrollinfo scroll[SCROLLABLE_LINES]; + +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 +}; + +/* LCD init */ +void lcd_init(void) +{ + lcd_clear_display(); + /* Call device specific init */ + lcd_init_device(); + create_thread(scroll_thread, scroll_stack, + sizeof(scroll_stack), scroll_name IF_PRIO(, PRIORITY_USER_INTERFACE)); +} + +/*** parameter handling ***/ + +void lcd_set_drawmode(int mode) +{ + drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); +} + +int lcd_get_drawmode(void) +{ + return drawmode; +} + +void lcd_setmargins(int x, int y) +{ + xmargin = x; + ymargin = y; +} + +int lcd_getxmargin(void) +{ + return xmargin; +} + +int lcd_getymargin(void) +{ + return ymargin; +} + +void lcd_setfont(int newfont) +{ + curfont = newfont; +} + +int lcd_getstringsize(const unsigned char *str, int *w, int *h) +{ + return font_getstringsize(str, w, h, curfont); +} + +/*** low-level drawing functions ***/ + +static void setpixel(int x, int y) +{ + lcd_framebuffer[y>>3][x] |= 1 << (y & 7); +} + +static void clearpixel(int x, int y) +{ + lcd_framebuffer[y>>3][x] &= ~(1 << (y & 7)); +} + +static void flippixel(int x, int y) +{ + lcd_framebuffer[y>>3][x] ^= 1 << (y & 7); +} + +static void nopixel(int x, int y) +{ + (void)x; + (void)y; +} + +lcd_pixelfunc_type* const lcd_pixelfuncs[8] = { + flippixel, nopixel, setpixel, setpixel, + nopixel, clearpixel, nopixel, clearpixel +}; + +static void flipblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void flipblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address ^= bits & mask; +} + +static void bgblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void bgblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address &= bits | ~mask; +} + +static void fgblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void fgblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address |= bits & mask; +} + +static void solidblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void solidblock(unsigned char *address, unsigned mask, unsigned bits) +{ + unsigned data = *(char*)address; + + bits ^= data; + *address = data ^ (bits & mask); +} + +static void flipinvblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void flipinvblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address ^= ~bits & mask; +} + +static void bginvblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void bginvblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address &= ~(bits & mask); +} + +static void fginvblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void fginvblock(unsigned char *address, unsigned mask, unsigned bits) +{ + *address |= ~bits & mask; +} + +static void solidinvblock(unsigned char *address, unsigned mask, unsigned bits) + ICODE_ATTR; +static void solidinvblock(unsigned char *address, unsigned mask, unsigned bits) +{ + unsigned data = *(char *)address; + + bits = ~bits ^ data; + *address = data ^ (bits & mask); +} + +lcd_blockfunc_type* const lcd_blockfuncs[8] = { + flipblock, bgblock, fgblock, solidblock, + flipinvblock, bginvblock, fginvblock, solidinvblock +}; + +/*** drawing functions ***/ + +/* Clear the whole display */ +void lcd_clear_display(void) +{ + unsigned bits = (drawmode & DRMODE_INVERSEVID) ? 0xFFu : 0; + + memset(lcd_framebuffer, bits, sizeof lcd_framebuffer); + scrolling_lines = 0; +} + +/* Set a single pixel */ +void lcd_drawpixel(int x, int y) +{ + if (((unsigned)x < LCD_WIDTH) && ((unsigned)y < LCD_HEIGHT)) + lcd_pixelfuncs[drawmode](x, y); +} + +/* Draw a line */ +void lcd_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; + lcd_pixelfunc_type *pfunc = lcd_pixelfuncs[drawmode]; + + deltax = abs(x2 - x1); + deltay = abs(y2 - y1); + xinc2 = 1; + yinc2 = 1; + + if (deltax >= deltay) + { + numpixels = deltax; + d = 2 * deltay - deltax; + dinc1 = deltay * 2; + dinc2 = (deltay - deltax) * 2; + xinc1 = 1; + yinc1 = 0; + } + else + { + numpixels = deltay; + d = 2 * deltax - deltay; + dinc1 = deltax * 2; + dinc2 = (deltax - deltay) * 2; + xinc1 = 0; + yinc1 = 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++) + { + if (((unsigned)x < LCD_WIDTH) && ((unsigned)y < LCD_HEIGHT)) + pfunc(x, y); + + if (d < 0) + { + d += dinc1; + x += xinc1; + y += yinc1; + } + else + { + d += dinc2; + x += xinc2; + y += yinc2; + } + } +} + +/* Draw a horizontal line (optimised) */ +void lcd_hline(int x1, int x2, int y) +{ + int x; + unsigned char *dst, *dst_end; + unsigned mask; + lcd_blockfunc_type *bfunc; + + /* direction flip */ + if (x2 < x1) + { + x = x1; + x1 = x2; + x2 = x; + } + + /* nothing to draw? */ + if (((unsigned)y >= LCD_HEIGHT) || (x1 >= LCD_WIDTH) || (x2 < 0)) + return; + + /* clipping */ + if (x1 < 0) + x1 = 0; + if (x2 >= LCD_WIDTH) + x2 = LCD_WIDTH-1; + + bfunc = lcd_blockfuncs[drawmode]; + dst = &lcd_framebuffer[y>>3][x1]; + mask = 1 << (y & 7); + + dst_end = dst + x2 - x1; + do + bfunc(dst++, mask, 0xFFu); + while (dst <= dst_end); +} + +/* Draw a vertical line (optimised) */ +void lcd_vline(int x, int y1, int y2) +{ + int ny; + unsigned char *dst; + unsigned mask, mask_bottom; + lcd_blockfunc_type *bfunc; + + /* direction flip */ + if (y2 < y1) + { + ny = y1; + y1 = y2; + y2 = ny; + } + + /* nothing to draw? */ + if (((unsigned)x >= LCD_WIDTH) || (y1 >= LCD_HEIGHT) || (y2 < 0)) + return; + + /* clipping */ + if (y1 < 0) + y1 = 0; + if (y2 >= LCD_HEIGHT) + y2 = LCD_HEIGHT-1; + + bfunc = lcd_blockfuncs[drawmode]; + dst = &lcd_framebuffer[y1>>3][x]; + ny = y2 - (y1 & ~7); + mask = 0xFFu << (y1 & 7); + mask_bottom = 0xFFu >> (~ny & 7); + + for (; ny >= 8; ny -= 8) + { + bfunc(dst, mask, 0xFFu); + dst += LCD_WIDTH; + mask = 0xFFu; + } + mask &= mask_bottom; + bfunc(dst, mask, 0xFFu); +} + +/* Draw a rectangular box */ +void lcd_drawrect(int x, int y, int width, int height) +{ + if ((width <= 0) || (height <= 0)) + return; + + int x2 = x + width - 1; + int y2 = y + height - 1; + + lcd_vline(x, y, y2); + lcd_vline(x2, y, y2); + lcd_hline(x, x2, y); + lcd_hline(x, x2, y2); +} + +/* Fill a rectangular area */ +void lcd_fillrect(int x, int y, int width, int height) +{ + int ny; + unsigned char *dst, *dst_end; + unsigned mask, mask_bottom; + unsigned bits = 0; + lcd_blockfunc_type *bfunc; + bool fillopt = false; + + /* nothing to draw? */ + if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) || (y >= LCD_HEIGHT) + || (x + width <= 0) || (y + height <= 0)) + return; + + /* clipping */ + if (x < 0) + { + width += x; + x = 0; + } + if (y < 0) + { + height += y; + y = 0; + } + if (x + width > LCD_WIDTH) + width = LCD_WIDTH - x; + if (y + height > LCD_HEIGHT) + height = LCD_HEIGHT - y; + + if (drawmode & DRMODE_INVERSEVID) + { + if (drawmode & DRMODE_BG) + { + fillopt = true; + } + } + else + { + if (drawmode & DRMODE_FG) + { + fillopt = true; + bits = 0xFFu; + } + } + bfunc = lcd_blockfuncs[drawmode]; + dst = &lcd_framebuffer[y>>3][x]; + ny = height - 1 + (y & 7); + mask = 0xFFu << (y & 7); + mask_bottom = 0xFFu >> (~ny & 7); + + for (; ny >= 8; ny -= 8) + { + if (fillopt && (mask == 0xFFu)) + memset(dst, bits, width); + else + { + unsigned char *dst_row = dst; + + dst_end = dst_row + width; + do + bfunc(dst_row++, mask, 0xFFu); + while (dst_row < dst_end); + } + + dst += LCD_WIDTH; + mask = 0xFFu; + } + mask &= mask_bottom; + + if (fillopt && (mask == 0xFFu)) + memset(dst, bits, width); + else + { + dst_end = dst + width; + do + bfunc(dst++, mask, 0xFFu); + while (dst < dst_end); + } +} + +/* About Rockbox' internal bitmap format: + * + * A bitmap contains one bit for every pixel that defines if that pixel is + * black (1) or white (0). Bits within a byte are arranged vertically, LSB + * at top. + * The bytes are stored in row-major order, with byte 0 being top left, + * byte 1 2nd from left etc. The first row of bytes defines pixel rows + * 0..7, the second row defines pixel row 8..15 etc. + * + * This is the same as the internal lcd hw format. */ + +/* Draw a partial bitmap */ +void lcd_bitmap_part(const unsigned char *src, int src_x, int src_y, + int stride, int x, int y, int width, int height) + ICODE_ATTR; +void lcd_bitmap_part(const unsigned char *src, int src_x, int src_y, + int stride, int x, int y, int width, int height) +{ + int shift, ny; + unsigned char *dst, *dst_end; + unsigned mask, mask_bottom; + lcd_blockfunc_type *bfunc; + + /* nothing to draw? */ + if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) || (y >= LCD_HEIGHT) + || (x + width <= 0) || (y + height <= 0)) + return; + + /* clipping */ + if (x < 0) + { + width += x; + src_x -= x; + x = 0; + } + if (y < 0) + { + height += y; + src_y -= y; + y = 0; + } + if (x + width > LCD_WIDTH) + width = LCD_WIDTH - x; + if (y + height > LCD_HEIGHT) + height = LCD_HEIGHT - y; + + src += stride * (src_y >> 3) + src_x; /* move starting point */ + src_y &= 7; + y -= src_y; + dst = &lcd_framebuffer[y>>3][x]; + shift = y & 7; + ny = height - 1 + shift + src_y; + + bfunc = lcd_blockfuncs[drawmode]; + mask = 0xFFu << (shift + src_y); + mask_bottom = 0xFFu >> (~ny & 7); + + if (shift == 0) + { + bool copyopt = (drawmode == DRMODE_SOLID); + + for (; ny >= 8; ny -= 8) + { + if (copyopt && (mask == 0xFFu)) + memcpy(dst, src, width); + else + { + const unsigned char *src_row = src; + unsigned char *dst_row = dst; + + dst_end = dst_row + width; + do + bfunc(dst_row++, mask, *src_row++); + while (dst_row < dst_end); + } + + src += stride; + dst += LCD_WIDTH; + mask = 0xFFu; + } + mask &= mask_bottom; + + if (copyopt && (mask == 0xFFu)) + memcpy(dst, src, width); + else + { + dst_end = dst + width; + do + bfunc(dst++, mask, *src++); + while (dst < dst_end); + } + } + else + { + dst_end = dst + width; + do + { + const unsigned char *src_col = src++; + unsigned char *dst_col = dst++; + unsigned mask_col = mask; + unsigned data = 0; + + for (y = ny; y >= 8; y -= 8) + { + data |= *src_col << shift; + + if (mask_col & 0xFFu) + { + bfunc(dst_col, mask_col, data); + mask_col = 0xFFu; + } + else + mask_col >>= 8; + + src_col += stride; + dst_col += LCD_WIDTH; + data >>= 8; + } + data |= *src_col << shift; + bfunc(dst_col, mask_col & mask_bottom, data); + } + while (dst < dst_end); + } +} + +/* Draw a full bitmap */ +void lcd_bitmap(const unsigned char *src, int x, int y, int width, int height) +{ + lcd_bitmap_part(src, 0, 0, width, x, y, width, height); +} + +/* put a string at a given pixel position, skipping first ofs pixel columns */ +static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str) +{ + unsigned short ch; + unsigned short *ucs; + struct font* pf = font_get(curfont); + + ucs = bidi_l2v(str, 1); + + while ((ch = *ucs++) != 0 && x < LCD_WIDTH) + { + int width; + const unsigned char *bits; + + /* get proportional width and glyph bits */ + width = font_get_width(pf,ch); + + if (ofs > width) + { + ofs -= width; + continue; + } + + bits = font_get_bits(pf, ch); + + lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs, + pf->height); + + x += width - ofs; + ofs = 0; + } +} +/* put a string at a given pixel position */ +void lcd_putsxy(int x, int y, const unsigned char *str) +{ + lcd_putsxyofs(x, y, 0, str); +} + +/*** Line oriented text output ***/ + +/* put a string at a given char position */ +void lcd_puts(int x, int y, const unsigned char *str) +{ + lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, 0); +} + +void lcd_puts_style(int x, int y, const unsigned char *str, int style) +{ + lcd_puts_style_offset(x, y, str, style, 0); +} + +void lcd_puts_offset(int x, int y, const unsigned char *str, int offset) +{ + lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, offset); +} + +/* put a string at a given char position, style, and pixel position, + * skipping first offset pixel columns */ +void lcd_puts_style_offset(int x, int y, const unsigned char *str, + int style, int offset) +{ + int xpos,ypos,w,h,xrect; + int lastmode = drawmode; + + /* make sure scrolling is turned off on the line we are updating */ + scrolling_lines &= ~(1 << y); + + if(!str || !str[0]) + return; + + lcd_getstringsize(str, &w, &h); + xpos = xmargin + x*w / utf8length(str); + ypos = ymargin + y*h; + drawmode = (style & STYLE_INVERT) ? + (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID; + lcd_putsxyofs(xpos, ypos, offset, str); + drawmode ^= DRMODE_INVERSEVID; + xrect = xpos + MAX(w - offset, 0); + lcd_fillrect(xrect, ypos, LCD_WIDTH - xrect, h); + drawmode = lastmode; +} + +/*** scrolling ***/ + +/* 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_invertscroll(int x, int y) +{ + struct scrollinfo* s; + + (void)x; + + s = &scroll[y]; + s->invert = !s->invert; +} + +void lcd_stop_scroll(void) +{ + scrolling_lines=0; +} + +void lcd_scroll_speed(int speed) +{ + scroll_ticks = scroll_tick_table[speed]; +} + +void lcd_scroll_step(int step) +{ + scroll_step = step; +} + +void lcd_scroll_delay(int ms) +{ + scroll_delay = ms / (HZ / 10); +} + +void lcd_bidir_scroll(int percent) +{ + bidir_limit = percent; +} + +void lcd_puts_scroll(int x, int y, const unsigned char *string) +{ + lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT); +} + +void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style) +{ + lcd_puts_scroll_style_offset(x, y, string, style, 0); +} + +void lcd_puts_scroll_offset(int x, int y, const unsigned char *string, + int offset) +{ + lcd_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset); +} + +void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string, + int style, int offset) +{ + 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_puts_style_offset(x,y,string,STYLE_INVERT,offset); + } + else + lcd_puts_offset(x,y,string,offset); + + lcd_getstringsize(string, &w, &h); + + if (LCD_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_getstringsize(s->line, &w, &h); + + /* scroll bidirectional or forward only depending on the string + width */ + if ( bidir_limit ) { + s->bidir = s->width < (LCD_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_getstringsize(s->line, &w, &h); + } + + end = strchr(s->line, '\0'); + strncpy(end, string, LCD_WIDTH/2); + + s->len = utf8length(string); + s->offset = offset; + s->startx = xmargin + x * s->width / s->len;; + s->backward = false; + scrolling_lines |= (1<<y); + } + else + /* force a bit switch-off since it doesn't scroll */ + scrolling_lines &= ~(1<<y); +} + +static void scroll_thread(void) +{ + struct font* pf; + struct scrollinfo* s; + int index; + int xpos, ypos; + int lastmode; + + /* initialize scroll struct array */ + scrolling_lines = 0; + + while ( 1 ) { + 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 = s->startx; + 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_WIDTH - xpos)) { + /* at end of line */ + s->offset = s->width - (LCD_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; + } + + lastmode = drawmode; + drawmode = s->invert ? + (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID; + lcd_putsxyofs(xpos, ypos, s->offset, s->line); + drawmode = lastmode; + lcd_update_rect(xpos, ypos, LCD_WIDTH - xpos, pf->height); + } + + sleep(scroll_ticks); + } +} + |