/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 by Dave Chapman * * Rockbox driver for 16-bit colour LCDs * * 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.h" #include "kernel.h" #include "thread.h" #include #include #include "memory.h" #include "file.h" #include "debug.h" #include "system.h" #include "font.h" #include "rbunicode.h" #include "bidi.h" #define SCROLLABLE_LINES 26 enum fill_opt { OPT_NONE = 0, OPT_SET, OPT_COPY }; /*** globals ***/ fb_data lcd_framebuffer[LCD_HEIGHT][LCD_WIDTH] IRAM_LCDFRAMEBUFFER __attribute__ ((aligned (16))); static fb_data* lcd_backdrop = NULL; static long lcd_backdrop_offset IDATA_ATTR = 0; static unsigned fg_pattern IDATA_ATTR = LCD_DEFAULT_FG; static unsigned bg_pattern IDATA_ATTR = LCD_DEFAULT_BG; 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 long scroll_stack[DEFAULT_STACK_SIZE/sizeof(long)]; static const char scroll_name[] = "scroll"; static void scroll_thread(void); 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 }; /* probably just a dummy */ int lcd_default_contrast(void) { return 28; } /* 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); } /*** parameter handling ***/ void lcd_set_drawmode(int mode) { drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); } int lcd_get_drawmode(void) { return drawmode; } void lcd_set_foreground(unsigned color) { fg_pattern = color; } unsigned lcd_get_foreground(void) { return fg_pattern; } void lcd_set_background(unsigned color) { bg_pattern = color; } unsigned lcd_get_background(void) { return bg_pattern; } void lcd_set_drawinfo(int mode, unsigned fg_color, unsigned bg_color) { lcd_set_drawmode(mode); fg_pattern = fg_color; bg_pattern = bg_color; } 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 ***/ #define LCDADDR(x, y) (&lcd_framebuffer[(y)][(x)]) static void setpixel(fb_data *address) ICODE_ATTR; static void setpixel(fb_data *address) { *address = fg_pattern; } static void clearpixel(fb_data *address) ICODE_ATTR; static void clearpixel(fb_data *address) { *address = bg_pattern; } static void clearimgpixel(fb_data *address) ICODE_ATTR; static void clearimgpixel(fb_data *address) { *address = *(fb_data *)((long)address + lcd_backdrop_offset); } static void flippixel(fb_data *address) ICODE_ATTR; static void flippixel(fb_data *address) { *address = ~(*address); } static void nopixel(fb_data *address) ICODE_ATTR; static void nopixel(fb_data *address) { (void)address; } lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_bgcolor[8] = { flippixel, nopixel, setpixel, setpixel, nopixel, clearpixel, nopixel, clearpixel }; lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_backdrop[8] = { flippixel, nopixel, setpixel, setpixel, nopixel, clearimgpixel, nopixel, clearimgpixel }; lcd_fastpixelfunc_type* const * lcd_fastpixelfuncs = lcd_fastpixelfuncs_bgcolor; void lcd_set_backdrop(fb_data* backdrop) { lcd_backdrop = backdrop; if (backdrop) { lcd_backdrop_offset = (long)backdrop - (long)&lcd_framebuffer[0][0]; lcd_fastpixelfuncs = lcd_fastpixelfuncs_backdrop; } else { lcd_backdrop_offset = 0; lcd_fastpixelfuncs = lcd_fastpixelfuncs_bgcolor; } } fb_data* lcd_get_backdrop(void) { return lcd_backdrop; } /*** drawing functions ***/ /* Clear the whole display */ void lcd_clear_display(void) { fb_data *dst = LCDADDR(0, 0); if (drawmode & DRMODE_INVERSEVID) { memset16(dst, fg_pattern, LCD_WIDTH*LCD_HEIGHT); } else { if (!lcd_backdrop) memset16(dst, bg_pattern, LCD_WIDTH*LCD_HEIGHT); else memcpy(dst, lcd_backdrop, 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_fastpixelfuncs[drawmode](LCDADDR(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_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[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(LCDADDR(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, width; unsigned bits = 0; enum fill_opt fillopt = OPT_NONE; fb_data *dst, *dst_end; lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[drawmode]; /* 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; if (drawmode & DRMODE_INVERSEVID) { if (drawmode & DRMODE_BG) { if (!lcd_backdrop) { fillopt = OPT_SET; bits = bg_pattern; } else fillopt = OPT_COPY; } } else { if (drawmode & DRMODE_FG) { fillopt = OPT_SET; bits = fg_pattern; } } dst = LCDADDR(x1, y); width = x2 - x1 + 1; switch (fillopt) { case OPT_SET: memset16(dst, bits, width); break; case OPT_COPY: memcpy(dst, (void *)((long)dst + lcd_backdrop_offset), width * sizeof(fb_data)); break; case OPT_NONE: dst_end = dst + width; do pfunc(dst++); while (dst < dst_end); break; } } /* Draw a vertical line (optimised) */ void lcd_vline(int x, int y1, int y2) { int y; fb_data *dst, *dst_end; lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[drawmode]; /* direction flip */ if (y2 < y1) { y = y1; y1 = y2; y2 = y; } /* 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; dst = LCDADDR(x, y1); dst_end = dst + (y2 - y1) * LCD_WIDTH; do { pfunc(dst); dst += LCD_WIDTH; } while (dst <= dst_end); } /* 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) { unsigned bits = 0; enum fill_opt fillopt = OPT_NONE; fb_data *dst, *dst_end; lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[drawmode]; /* 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) { if (!lcd_backdrop) { fillopt = OPT_SET; bits = bg_pattern; } else fillopt = OPT_COPY; } } else { if (drawmode & DRMODE_FG) { fillopt = OPT_SET; bits = fg_pattern; } } dst = LCDADDR(x, y); dst_end = dst + height * LCD_WIDTH; do { fb_data *dst_row, *row_end; switch (fillopt) { case OPT_SET: memset16(dst, bits, width); break; case OPT_COPY: memcpy(dst, (void *)((long)dst + lcd_backdrop_offset), width * sizeof(fb_data)); break; case OPT_NONE: dst_row = dst; row_end = dst_row + width; do pfunc(dst_row++); while (dst_row < row_end); break; } dst += LCD_WIDTH; } while (dst < dst_end); } /* About Rockbox' internal monochrome 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 mono bitmap format used on all other targets so far; the * pixel packing doesn't really matter on a 8bit+ target. */ /* Draw a partial monochrome bitmap */ void lcd_mono_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_mono_bitmap_part(const unsigned char *src, int src_x, int src_y, int stride, int x, int y, int width, int height) { const unsigned char *src_end; fb_data *dst, *dst_end; lcd_fastpixelfunc_type *fgfunc; lcd_fastpixelfunc_type *bgfunc; /* 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; src_end = src + width; dst = LCDADDR(x, y); fgfunc = lcd_fastpixelfuncs[drawmode]; bgfunc = lcd_fastpixelfuncs[drawmode ^ DRMODE_INVERSEVID]; do { const unsigned char *src_col = src++; unsigned data = *src_col >> src_y; fb_data *dst_col = dst++; int numbits = 8 - src_y; dst_end = dst_col + height * LCD_WIDTH; do { if (data & 0x01) fgfunc(dst_col); else bgfunc(dst_col); dst_col += LCD_WIDTH; data >>= 1; if (--numbits == 0) { src_col += stride; data = *src_col; numbits = 8; } } while (dst_col < dst_end); } while (src < src_end); } /* Draw a full monochrome bitmap */ void lcd_mono_bitmap(const unsigned char *src, int x, int y, int width, int height) { lcd_mono_bitmap_part(src, 0, 0, width, x, y, width, height); } /* Draw a partial native bitmap */ void lcd_bitmap_part(const fb_data *src, int src_x, int src_y, int stride, int x, int y, int width, int height) ICODE_ATTR; void lcd_bitmap_part(const fb_data *src, int src_x, int src_y, int stride, int x, int y, int width, int height) { fb_data *dst, *dst_end; /* 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 + src_x; /* move starting point */ dst = LCDADDR(x, y); dst_end = dst + height * LCD_WIDTH; do { memcpy(dst, src, width * sizeof(fb_data)); src += stride; dst += LCD_WIDTH; } while (dst < dst_end); } /* Draw a full native bitmap */ void lcd_bitmap(const fb_data *src, int x, int y, int width, int height) { lcd_bitmap_part(src, 0, 0, width, x, y, width, height); } /* Draw a partial native bitmap */ void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y, int stride, int x, int y, int width, int height) ICODE_ATTR; void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y, int stride, int x, int y, int width, int height) { fb_data *dst, *dst_end; /* 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 + src_x; /* move starting point */ dst = LCDADDR(x, y); dst_end = dst + height * LCD_WIDTH; do { int i; for(i = 0;i < width;i++) { if(src[i] != TRANSPARENT_COLOR) dst[i] = src[i]; } src += stride; dst += LCD_WIDTH; } while (dst < dst_end); } /* Draw a full native bitmap with a transparent color */ void lcd_bitmap_transparent(const fb_data *src, int x, int y, int width, int height) { lcd_bitmap_transparent_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 = x; s->backward = false; scrolling_lines |= (1<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_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); } }