/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 by Dave Chapman * * Rockbox driver for 16-bit colour LCDs * * 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 "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" #include "scroll_engine.h" enum fill_opt { OPT_NONE = 0, OPT_SET, OPT_COPY }; /*** globals ***/ fb_data lcd_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH] IRAM_LCDFRAMEBUFFER CACHEALIGN_AT_LEAST_ATTR(16); static fb_data* lcd_backdrop = NULL; static long lcd_backdrop_offset IDATA_ATTR = 0; static struct viewport default_vp = { .x = 0, .y = 0, .width = LCD_WIDTH, .height = LCD_HEIGHT, .font = FONT_SYSFIXED, .drawmode = DRMODE_SOLID, .fg_pattern = LCD_DEFAULT_FG, .bg_pattern = LCD_DEFAULT_BG, .lss_pattern = LCD_DEFAULT_BG, .lse_pattern = LCD_DEFAULT_BG, .lst_pattern = LCD_DEFAULT_BG, }; /* The Gigabeat target build requires access to the current fg_pattern in lcd-meg-fx.c */ #if (!defined(TOSHIBA_GIGABEAT_F)&& !defined(TOSHIBA_GIGABEAT_S)) || defined(SIMULATOR) static struct viewport* current_vp IDATA_ATTR = &default_vp; #else struct viewport* current_vp IDATA_ATTR = &default_vp; #endif /* LCD init */ void lcd_init(void) { lcd_clear_display(); /* Call device specific init */ lcd_init_device(); scroll_init(); } /*** Viewports ***/ void lcd_set_viewport(struct viewport* vp) { if (vp == NULL) current_vp = &default_vp; else current_vp = vp; } void lcd_update_viewport(void) { lcd_update_rect(current_vp->x, current_vp->y, current_vp->width, current_vp->height); } void lcd_update_viewport_rect(int x, int y, int width, int height) { lcd_update_rect(current_vp->x + x, current_vp->y + y, width, height); } /*** parameter handling ***/ void lcd_set_drawmode(int mode) { current_vp->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); } int lcd_get_drawmode(void) { return current_vp->drawmode; } void lcd_set_foreground(unsigned color) { current_vp->fg_pattern = color; } unsigned lcd_get_foreground(void) { return current_vp->fg_pattern; } void lcd_set_background(unsigned color) { current_vp->bg_pattern = color; } unsigned lcd_get_background(void) { return current_vp->bg_pattern; } void lcd_set_selector_start(unsigned color) { current_vp->lss_pattern = color; } void lcd_set_selector_end(unsigned color) { current_vp->lse_pattern = color; } void lcd_set_selector_text(unsigned color) { current_vp->lst_pattern = color; } void lcd_set_drawinfo(int mode, unsigned fg_color, unsigned bg_color) { lcd_set_drawmode(mode); current_vp->fg_pattern = fg_color; current_vp->bg_pattern = bg_color; } int lcd_getwidth(void) { return current_vp->width; } int lcd_getheight(void) { return current_vp->height; } void lcd_setfont(int newfont) { current_vp->font = newfont; } int lcd_getfont(void) { return current_vp->font; } int lcd_getstringsize(const unsigned char *str, int *w, int *h) { return font_getstringsize(str, w, h, current_vp->font); } /*** low-level drawing functions ***/ #define LCDADDR(x, y) (&lcd_framebuffer[(y)][(x)]) static void ICODE_ATTR setpixel(fb_data *address) { *address = current_vp->fg_pattern; } static void ICODE_ATTR clearpixel(fb_data *address) { *address = current_vp->bg_pattern; } static void ICODE_ATTR clearimgpixel(fb_data *address) { *address = *(fb_data *)((long)address + lcd_backdrop_offset); } static void ICODE_ATTR flippixel(fb_data *address) { *address = ~(*address); } static void ICODE_ATTR 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 current viewport */ void lcd_clear_viewport(void) { fb_data *dst, *dst_end; dst = LCDADDR(current_vp->x, current_vp->y); dst_end = dst + current_vp->height * LCD_WIDTH; if (current_vp->drawmode & DRMODE_INVERSEVID) { do { memset16(dst, current_vp->fg_pattern, current_vp->width); dst += LCD_WIDTH; } while (dst < dst_end); } else { if (!lcd_backdrop) { do { memset16(dst, current_vp->bg_pattern, current_vp->width); dst += LCD_WIDTH; } while (dst < dst_end); } else { do { memcpy(dst, (void *)((long)dst + lcd_backdrop_offset), current_vp->width * sizeof(fb_data)); dst += LCD_WIDTH; } while (dst < dst_end); } } if (current_vp == &default_vp) { lcd_scroll_info.lines = 0; } else { lcd_scroll_stop(current_vp); } } /* Clear the whole display */ void lcd_clear_display(void) { struct viewport* old_vp = current_vp; current_vp = &default_vp; lcd_clear_viewport(); current_vp = old_vp; } /* Set a single pixel */ void lcd_drawpixel(int x, int y) { if (((unsigned)x < (unsigned)current_vp->width) && ((unsigned)y < (unsigned)current_vp->height)) lcd_fastpixelfuncs[current_vp->drawmode](LCDADDR(current_vp->x+x, current_vp->y+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[current_vp->drawmode]; deltay = abs(y2 - y1); if (deltay == 0) { DEBUGF("lcd_drawline() called for horizontal line - optimisation.\n"); lcd_hline(x1, x2, y1); return; } deltax = abs(x2 - x1); if (deltax == 0) { DEBUGF("lcd_drawline() called for vertical line - optimisation.\n"); lcd_vline(x1, y1, y2); return; } 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 < (unsigned)current_vp->width) && ((unsigned)y < (unsigned)current_vp->height)) pfunc(LCDADDR(x + current_vp->x, y + current_vp->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; /* direction flip */ if (x2 < x1) { x = x1; x1 = x2; x2 = x; } /* nothing to draw? */ if (((unsigned)y >= (unsigned)current_vp->height) || (x1 >= current_vp->width) || (x2 < 0)) return; /* drawmode and optimisation */ if (current_vp->drawmode & DRMODE_INVERSEVID) { if (current_vp->drawmode & DRMODE_BG) { if (!lcd_backdrop) { fillopt = OPT_SET; bits = current_vp->bg_pattern; } else fillopt = OPT_COPY; } } else { if (current_vp->drawmode & DRMODE_FG) { fillopt = OPT_SET; bits = current_vp->fg_pattern; } } if (fillopt == OPT_NONE && current_vp->drawmode != DRMODE_COMPLEMENT) return; /* clipping */ if (x1 < 0) x1 = 0; if (x2 >= current_vp->width) x2 = current_vp->width-1; width = x2 - x1 + 1; /* Adjust x1 and y to viewport */ x1 += current_vp->x; y += current_vp->y; dst = LCDADDR(x1, y); 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: /* DRMODE_COMPLEMENT */ dst_end = dst + width; do *dst = ~(*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[current_vp->drawmode]; /* direction flip */ if (y2 < y1) { y = y1; y1 = y2; y2 = y; } /* nothing to draw? */ if (((unsigned)x >= (unsigned)current_vp->width) || (y1 >= current_vp->height) || (y2 < 0)) return; /* clipping */ if (y1 < 0) y1 = 0; if (y2 >= current_vp->height) y2 = current_vp->height-1; dst = LCDADDR(x + current_vp->x, y1 + current_vp->y); 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; /* nothing to draw? */ if ((width <= 0) || (height <= 0) || (x >= current_vp->width) || (y >= current_vp->height) || (x + width <= 0) || (y + height <= 0)) return; /* drawmode and optimisation */ if (current_vp->drawmode & DRMODE_INVERSEVID) { if (current_vp->drawmode & DRMODE_BG) { if (!lcd_backdrop) { fillopt = OPT_SET; bits = current_vp->bg_pattern; } else fillopt = OPT_COPY; } } else { if (current_vp->drawmode & DRMODE_FG) { fillopt = OPT_SET; bits = current_vp->fg_pattern; } } if (fillopt == OPT_NONE && current_vp->drawmode != DRMODE_COMPLEMENT) return; /* clipping */ if (x < 0) { width += x; x = 0; } if (y < 0) { height += y; y = 0; } if (x + width > current_vp->width) width = current_vp->width - x; if (y + height > current_vp->height) height = current_vp->height - y; dst = LCDADDR(current_vp->x + x, current_vp->y + 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: /* DRMODE_COMPLEMENT */ dst_row = dst; row_end = dst_row + width; do *dst_row = ~(*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 ICODE_ATTR 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; unsigned dmask = 0x100; /* bit 8 == sentinel */ int drmode = current_vp->drawmode; /* nothing to draw? */ if ((width <= 0) || (height <= 0) || (x >= current_vp->width) || (y >= current_vp->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 > current_vp->width) width = current_vp->width - x; if (y + height > current_vp->height) height = current_vp->height - y; src += stride * (src_y >> 3) + src_x; /* move starting point */ src_y &= 7; src_end = src + width; dst = LCDADDR(current_vp->x + x, current_vp->y + y); dst_end = dst + height * LCD_WIDTH; if (drmode & DRMODE_INVERSEVID) { dmask = 0x1ff; /* bit 8 == sentinel */ drmode &= DRMODE_SOLID; /* mask out inversevid */ } do { const unsigned char *src_col = src++; unsigned data = (*src_col ^ dmask) >> src_y; fb_data *dst_col = dst++; int fg, bg; long bo; #define UPDATE_SRC do { \ data >>= 1; \ if (data == 0x001) { \ src_col += stride; \ data = *src_col ^ dmask; \ } \ } while (0) switch (drmode) { case DRMODE_COMPLEMENT: do { if (data & 0x01) *dst_col = ~(*dst_col); dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); break; case DRMODE_BG: if (lcd_backdrop) { bo = lcd_backdrop_offset; do { if (!(data & 0x01)) *dst_col = *(fb_data *)((long)dst_col + bo); dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); } else { bg = current_vp->bg_pattern; do { if (!(data & 0x01)) *dst_col = bg; dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); } break; case DRMODE_FG: fg = current_vp->fg_pattern; do { if (data & 0x01) *dst_col = fg; dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); break; case DRMODE_SOLID: fg = current_vp->fg_pattern; if (lcd_backdrop) { bo = lcd_backdrop_offset; do { *dst_col = (data & 0x01) ? fg : *(fb_data *)((long)dst_col + bo); dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); } else { bg = current_vp->bg_pattern; do { *dst_col = (data & 0x01) ? fg : bg; dst_col += LCD_WIDTH; UPDATE_SRC; } while (dst_col < dst_end); } break; } } 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 ICODE_ATTR 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 >= current_vp->width) || (y >= current_vp->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 > current_vp->width) width = current_vp->width - x; if (y + height > current_vp->height) height = current_vp->height - y; src += stride * src_y + src_x; /* move starting point */ dst = LCDADDR(current_vp->x + x, current_vp->y + 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); } #if !defined(TOSHIBA_GIGABEAT_F) && !defined(TOSHIBA_GIGABEAT_S) \ || defined(SIMULATOR) /* Draw a partial native bitmap */ void ICODE_ATTR 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 >= current_vp->width) || (y >= current_vp->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 > current_vp->width) width = current_vp->width - x; if (y + height > current_vp->height) height = current_vp->height - y; src += stride * src_y + src_x; /* move starting point */ dst = LCDADDR(current_vp->x + x, current_vp->y + y); dst_end = dst + height * LCD_WIDTH; do { int i; for(i = 0;i < width;i++) { if (src[i] == REPLACEWITHFG_COLOR) dst[i] = current_vp->fg_pattern; else if(src[i] != TRANSPARENT_COLOR) dst[i] = src[i]; } src += stride; dst += LCD_WIDTH; } while (dst < dst_end); } #endif /* !defined(TOSHIBA_GIGABEAT_F) || defined(SIMULATOR) */ /* 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); } #include "lcd-bitmap-common.c"