/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2006 Jens Arnold * * Rockbox driver for 2bit vertically interleaved 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 "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" #ifndef LCDFN /* Not compiling for remote - define macros for main LCD. */ #define LCDFN(fn) lcd_ ## fn #define FBFN(fn) fb_ ## fn #define LCDM(ma) LCD_ ## ma #define LCDNAME "lcd_" #define MAIN_LCD #endif /*** globals ***/ FBFN(data) LCDFN(framebuffer)[LCDM(FBHEIGHT)][LCDM(FBWIDTH)] IBSS_ATTR; static const FBFN(data) patterns[4] = {0xFFFF, 0xFF00, 0x00FF, 0x0000}; static FBFN(data) *backdrop = NULL; static long backdrop_offset IDATA_ATTR = 0; static struct viewport default_vp = { .x = 0, .y = 0, .width = LCDM(WIDTH), .height = LCDM(HEIGHT), .font = FONT_SYSFIXED, .drawmode = DRMODE_SOLID, .fg_pattern = LCDM(DEFAULT_FG), .bg_pattern = LCDM(DEFAULT_BG) }; static struct viewport *current_vp IBSS_ATTR; static unsigned fg_pattern IBSS_ATTR; static unsigned bg_pattern IBSS_ATTR; /*** Viewports ***/ void LCDFN(set_viewport)(struct viewport* vp) { if (vp == NULL) current_vp = &default_vp; else current_vp = vp; fg_pattern = patterns[current_vp->fg_pattern & 3]; bg_pattern = patterns[current_vp->bg_pattern & 3]; } void LCDFN(update_viewport)(void) { LCDFN(update_rect)(current_vp->x, current_vp->y, current_vp->width, current_vp->height); } void LCDFN(update_viewport_rect)(int x, int y, int width, int height) { LCDFN(update_rect)(current_vp->x + x, current_vp->y + y, width, height); } /* LCD init */ void LCDFN(init)(void) { LCDFN(set_viewport)(NULL); LCDFN(clear_display)(); #ifndef SIMULATOR LCDFN(init_device)(); #endif #ifdef MAIN_LCD scroll_init(); #endif } /*** parameter handling ***/ #if !defined(MAIN_LCD) && defined(HAVE_LCD_COLOR) /* When compiling for remote LCD and the main LCD is colour. */ unsigned lcd_remote_color_to_native(unsigned color) { unsigned r = (color & 0xf800) >> 10; unsigned g = (color & 0x07e0) >> 5; unsigned b = (color & 0x001f) << 2; /* * |R| * |Y'| = |0.299000 0.587000 0.114000| |G| * |B| */ return (5*r + 9*g + b) >> 8; } #endif void LCDFN(set_drawmode)(int mode) { current_vp->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); } int LCDFN(get_drawmode)(void) { return current_vp->drawmode; } void LCDFN(set_foreground)(unsigned brightness) { current_vp->fg_pattern = brightness; fg_pattern = patterns[brightness & 3]; } unsigned LCDFN(get_foreground)(void) { return current_vp->fg_pattern; } void LCDFN(set_background)(unsigned brightness) { current_vp->bg_pattern = brightness; bg_pattern = patterns[brightness & 3]; } unsigned LCDFN(get_background)(void) { return current_vp->bg_pattern; } void LCDFN(set_drawinfo)(int mode, unsigned fg_brightness, unsigned bg_brightness) { LCDFN(set_drawmode)(mode); LCDFN(set_foreground)(fg_brightness); LCDFN(set_background)(bg_brightness); } int LCDFN(getwidth)(void) { return current_vp->width; } int LCDFN(getheight)(void) { return current_vp->height; } void LCDFN(setfont)(int newfont) { current_vp->font = newfont; } int LCDFN(getfont)(void) { return current_vp->font; } int LCDFN(getstringsize)(const unsigned char *str, int *w, int *h) { return font_getstringsize(str, w, h, current_vp->font); } /*** low-level drawing functions ***/ static void setpixel(int x, int y) { unsigned mask = 0x0101 << (y & 7); FBFN(data) *address = &LCDFN(framebuffer)[y>>3][x]; unsigned data = *address; *address = data ^ ((data ^ fg_pattern) & mask); } static void clearpixel(int x, int y) { unsigned mask = 0x0101 << (y & 7); FBFN(data) *address = &LCDFN(framebuffer)[y>>3][x]; unsigned data = *address; *address = data ^ ((data ^ bg_pattern) & mask); } static void clearimgpixel(int x, int y) { unsigned mask = 0x0101 << (y & 7); FBFN(data) *address = &LCDFN(framebuffer)[y>>3][x]; unsigned data = *address; *address = data ^ ((data ^ *(FBFN(data) *)((long)address + backdrop_offset)) & mask); } static void flippixel(int x, int y) { unsigned mask = 0x0101 << (y & 7); FBFN(data) *address = &LCDFN(framebuffer)[y>>3][x]; *address ^= mask; } static void nopixel(int x, int y) { (void)x; (void)y; } LCDFN(pixelfunc_type)* const LCDFN(pixelfuncs_bgcolor)[8] = { flippixel, nopixel, setpixel, setpixel, nopixel, clearpixel, nopixel, clearpixel }; LCDFN(pixelfunc_type)* const LCDFN(pixelfuncs_backdrop)[8] = { flippixel, nopixel, setpixel, setpixel, nopixel, clearimgpixel, nopixel, clearimgpixel }; LCDFN(pixelfunc_type)* const *LCDFN(pixelfuncs) = LCDFN(pixelfuncs_bgcolor); /* 'mask' and 'bits' contain 2 bits per pixel */ static void ICODE_ATTR flipblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address ^= bits & mask; } static void ICODE_ATTR bgblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ bg_pattern) & mask & ~bits); } static void ICODE_ATTR bgimgblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ *(FBFN(data) *)((long)address + backdrop_offset)) & mask & ~bits); } static void ICODE_ATTR fgblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ fg_pattern) & mask & bits); } static void ICODE_ATTR solidblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; unsigned bgp = bg_pattern; bits = bgp ^ ((bgp ^ fg_pattern) & bits); *address = data ^ ((data ^ bits) & mask); } static void ICODE_ATTR solidimgblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; unsigned bgp = *(FBFN(data) *)((long)address + backdrop_offset); bits = bgp ^ ((bgp ^ fg_pattern) & bits); *address = data ^ ((data ^ bits) & mask); } static void ICODE_ATTR flipinvblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address ^= ~bits & mask; } static void ICODE_ATTR bginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ bg_pattern) & mask & bits); } static void ICODE_ATTR bgimginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ *(FBFN(data) *)((long)address + backdrop_offset)) & mask & bits); } static void ICODE_ATTR fginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; *address = data ^ ((data ^ fg_pattern) & mask & ~bits); } static void ICODE_ATTR solidinvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; unsigned fgp = fg_pattern; bits = fgp ^ ((fgp ^ bg_pattern) & bits); *address = data ^ ((data ^ bits) & mask); } static void ICODE_ATTR solidimginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; unsigned fgp = fg_pattern; bits = fgp ^ ((fgp ^ *(FBFN(data) *)((long)address + backdrop_offset)) & bits); *address = data ^ ((data ^ bits) & mask); } LCDFN(blockfunc_type)* const LCDFN(blockfuncs_bgcolor)[8] = { flipblock, bgblock, fgblock, solidblock, flipinvblock, bginvblock, fginvblock, solidinvblock }; LCDFN(blockfunc_type)* const LCDFN(blockfuncs_backdrop)[8] = { flipblock, bgimgblock, fgblock, solidimgblock, flipinvblock, bgimginvblock, fginvblock, solidimginvblock }; LCDFN(blockfunc_type)* const *LCDFN(blockfuncs) = LCDFN(blockfuncs_bgcolor); void LCDFN(set_backdrop)(FBFN(data) *bd) { backdrop = bd; if (bd) { backdrop_offset = (long)bd - (long)LCDFN(framebuffer); LCDFN(pixelfuncs) = LCDFN(pixelfuncs_backdrop); LCDFN(blockfuncs) = LCDFN(blockfuncs_backdrop); } else { backdrop_offset = 0; LCDFN(pixelfuncs) = LCDFN(pixelfuncs_bgcolor); LCDFN(blockfuncs) = LCDFN(blockfuncs_bgcolor); } } FBFN(data)* LCDFN(get_backdrop)(void) { return backdrop; } static inline void setblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *address; bits ^= data; *address = data ^ (bits & mask); } /*** drawing functions ***/ /* Clear the whole display */ void LCDFN(clear_display)(void) { if (default_vp.drawmode & DRMODE_INVERSEVID) { memset(LCDFN(framebuffer), patterns[default_vp.fg_pattern & 3], sizeof LCDFN(framebuffer)); } else { if (backdrop) memcpy(LCDFN(framebuffer), backdrop, sizeof LCDFN(framebuffer)); else memset(LCDFN(framebuffer), patterns[default_vp.bg_pattern & 3], sizeof LCDFN(framebuffer)); } LCDFN(scroll_info).lines = 0; } /* Clear the current viewport */ void LCDFN(clear_viewport)(void) { int lastmode; if (current_vp == &default_vp) { LCDFN(clear_display)(); } else { lastmode = current_vp->drawmode; /* Invert the INVERSEVID bit and set basic mode to SOLID */ current_vp->drawmode = (~lastmode & DRMODE_INVERSEVID) | DRMODE_SOLID; LCDFN(fillrect)(0, 0, current_vp->width, current_vp->height); current_vp->drawmode = lastmode; LCDFN(scroll_stop)(current_vp); } } /* Set a single pixel */ void LCDFN(drawpixel)(int x, int y) { if (((unsigned)x < (unsigned)current_vp->width) && ((unsigned)y < (unsigned)current_vp->height)) LCDFN(pixelfuncs)[current_vp->drawmode](current_vp->x+x, current_vp->y+y); } /* Draw a line */ void LCDFN(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; LCDFN(pixelfunc_type) *pfunc = LCDFN(pixelfuncs)[current_vp->drawmode]; deltax = abs(x2 - x1); if (deltax == 0) { DEBUGF(LCDNAME "drawline() called for vertical line - optimisation.\n"); LCDFN(vline)(x1, y1, y2); return; } deltay = abs(y2 - y1); if (deltay == 0) { DEBUGF(LCDNAME "drawline() called for horizontal line - optimisation.\n"); LCDFN(hline)(x1, x2, y1); 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(current_vp->x + x, current_vp->y + y); if (d < 0) { d += dinc1; x += xinc1; y += yinc1; } else { d += dinc2; x += xinc2; y += yinc2; } } } /* Draw a horizontal line (optimised) */ void LCDFN(hline)(int x1, int x2, int y) { int x; int width; FBFN(data) *dst, *dst_end; unsigned mask; LCDFN(blockfunc_type) *bfunc; /* 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; /* 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; bfunc = LCDFN(blockfuncs)[current_vp->drawmode]; dst = &LCDFN(framebuffer)[y>>3][x1]; mask = 0x0101 << (y & 7); dst_end = dst + width; do bfunc(dst++, mask, 0xFFFFu); while (dst < dst_end); } /* Draw a vertical line (optimised) */ void LCDFN(vline)(int x, int y1, int y2) { int ny; FBFN(data) *dst; unsigned mask, mask_bottom; LCDFN(blockfunc_type) *bfunc; /* direction flip */ if (y2 < y1) { ny = y1; y1 = y2; y2 = ny; } /* 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; /* adjust for viewport */ y1 += current_vp->y; y2 += current_vp->y; x += current_vp->x; bfunc = LCDFN(blockfuncs)[current_vp->drawmode]; dst = &LCDFN(framebuffer)[y1>>3][x]; ny = y2 - (y1 & ~7); mask = (0xFFu << (y1 & 7)) & 0xFFu; mask |= mask << 8; mask_bottom = 0xFFu >> (~ny & 7); mask_bottom |= mask_bottom << 8; for (; ny >= 8; ny -= 8) { bfunc(dst, mask, 0xFFFFu); dst += LCDM(WIDTH); mask = 0xFFFFu; } mask &= mask_bottom; bfunc(dst, mask, 0xFFFFu); } /* Draw a rectangular box */ void LCDFN(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; LCDFN(vline)(x, y, y2); LCDFN(vline)(x2, y, y2); LCDFN(hline)(x, x2, y); LCDFN(hline)(x, x2, y2); } /* Fill a rectangular area */ void LCDFN(fillrect)(int x, int y, int width, int height) { int ny; FBFN(data) *dst, *dst_end; unsigned mask, mask_bottom; unsigned bits = 0; LCDFN(blockfunc_type) *bfunc; bool fillopt = false; /* 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; 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; /* adjust for viewport */ x += current_vp->x; y += current_vp->y; if (current_vp->drawmode & DRMODE_INVERSEVID) { if ((current_vp->drawmode & DRMODE_BG) && !backdrop) { fillopt = true; bits = bg_pattern; } } else { if (current_vp->drawmode & DRMODE_FG) { fillopt = true; bits = fg_pattern; } } bfunc = LCDFN(blockfuncs)[current_vp->drawmode]; dst = &LCDFN(framebuffer)[y>>3][x]; ny = height - 1 + (y & 7); mask = (0xFFu << (y & 7)) & 0xFFu; mask |= mask << 8; mask_bottom = 0xFFu >> (~ny & 7); mask_bottom |= mask_bottom << 8; for (; ny >= 8; ny -= 8) { if (fillopt && (mask == 0xFFFFu)) memset16(dst, bits, width); else { FBFN(data) *dst_row = dst; dst_end = dst_row + width; do bfunc(dst_row++, mask, 0xFFFFu); while (dst_row < dst_end); } dst += LCDM(WIDTH); mask = 0xFFFFu; } mask &= mask_bottom; if (fillopt && (mask == 0xFFFFu)) memset16(dst, bits, width); else { dst_end = dst + width; do bfunc(dst++, mask, 0xFFFFu); 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 similar to the internal lcd hw format. */ /* Draw a partial monochrome bitmap */ void ICODE_ATTR LCDFN(mono_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; FBFN(data) *dst, *dst_end; unsigned data, mask, mask_bottom; LCDFN(blockfunc_type) *bfunc; /* 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; /* adjust for viewport */ x += current_vp->x; y += current_vp->y; src += stride * (src_y >> 3) + src_x; /* move starting point */ src_y &= 7; y -= src_y; dst = &LCDFN(framebuffer)[y>>3][x]; shift = y & 7; ny = height - 1 + shift + src_y; bfunc = LCDFN(blockfuncs)[current_vp->drawmode]; mask = 0xFFu << (shift + src_y); /* not byte-doubled here because shift+src_y can be > 7 */ mask_bottom = 0xFFu >> (~ny & 7); mask_bottom |= mask_bottom << 8; if (shift == 0) { mask &= 0xFFu; mask |= mask << 8; for (; ny >= 8; ny -= 8) { const unsigned char *src_row = src; FBFN(data) *dst_row = dst; dst_end = dst_row + width; do { data = *src_row++; bfunc(dst_row++, mask, data | (data << 8)); } while (dst_row < dst_end); src += stride; dst += LCDM(WIDTH); mask = 0xFFFFu; } mask &= mask_bottom; dst_end = dst + width; do { data = *src++; bfunc(dst++, mask, data | (data << 8)); } while (dst < dst_end); } else { unsigned ddata; dst_end = dst + width; do { const unsigned char *src_col = src++; FBFN(data) *dst_col = dst++; unsigned mask_col = mask & 0xFFu; mask_col |= mask_col << 8; data = 0; for (y = ny; y >= 8; y -= 8) { data |= *src_col << shift; if (mask_col) { ddata = data & 0xFFu; bfunc(dst_col, mask_col, ddata | (ddata << 8)); mask_col = 0xFFFFu; } else { mask_col = (mask >> 8) & 0xFFu; mask_col |= mask_col << 8; } src_col += stride; dst_col += LCDM(WIDTH); data >>= 8; } data |= *src_col << shift; mask_col &= mask_bottom; ddata = data & 0xFFu; bfunc(dst_col, mask_col, ddata | (ddata << 8)); } while (dst < dst_end); } } /* Draw a full monochrome bitmap */ void LCDFN(mono_bitmap)(const unsigned char *src, int x, int y, int width, int height) { LCDFN(mono_bitmap_part)(src, 0, 0, width, x, y, width, height); } /* About Rockbox' internal native bitmap format: * * A bitmap contains one bit in each byte of a pair of bytes for every pixel. * 00 = white, 01 = light grey, 10 = dark grey, 11 = black. Bits within a byte * are arranged vertically, LSB at top. * The pairs of bytes are stored as shorts, in row-major order, with word 0 * being top left, word 1 2nd from left etc. The first row of words 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 native bitmap */ void ICODE_ATTR LCDFN(bitmap_part)(const FBFN(data) *src, int src_x, int src_y, int stride, int x, int y, int width, int height) { int shift, ny; FBFN(data) *dst, *dst_end; unsigned mask, mask_bottom; /* 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; /* adjust for viewport */ x += current_vp->x; y += current_vp->y; src += stride * (src_y >> 3) + src_x; /* move starting point */ src_y &= 7; y -= src_y; dst = &LCDFN(framebuffer)[y>>3][x]; shift = y & 7; ny = height - 1 + shift + src_y; mask = 0xFFu << (shift + src_y); /* not byte-doubled here because shift+src_y can be > 7 */ mask_bottom = 0xFFu >> (~ny & 7); mask_bottom |= mask_bottom << 8; if (shift == 0) { mask &= 0xFFu; mask |= mask << 8; for (; ny >= 8; ny -= 8) { if (mask == 0xFFFFu) memcpy(dst, src, width * sizeof(FBFN(data))); else { const FBFN(data) *src_row = src; FBFN(data) *dst_row = dst; dst_end = dst_row + width; do setblock(dst_row++, mask, *src_row++); while (dst_row < dst_end); } src += stride; dst += LCDM(WIDTH); mask = 0xFFFFu; } mask &= mask_bottom; if (mask == 0xFFFFu) memcpy(dst, src, width * sizeof(FBFN(data))); else { dst_end = dst + width; do setblock(dst++, mask, *src++); while (dst < dst_end); } } else { unsigned datamask = (0xFFu << shift) & 0xFFu; datamask |= datamask << 8; dst_end = dst + width; do { const FBFN(data) *src_col = src++; FBFN(data) *dst_col = dst++; unsigned mask_col = mask & 0xFFu; unsigned data, olddata = 0; mask_col |= mask_col << 8; for (y = ny; y >= 8; y -= 8) { data = *src_col << shift; if (mask_col) { setblock(dst_col, mask_col, olddata ^((olddata ^ data) & datamask)); mask_col = 0xFFFFu; } else { mask_col = (mask >> 8) & 0xFFu; mask_col |= mask_col << 8; } src_col += stride; dst_col += LCDM(WIDTH); olddata = data >> 8; } data = *src_col << shift; setblock(dst_col, mask_col & mask_bottom, olddata ^((olddata ^ data) & datamask)); } while (dst < dst_end); } } /* Draw a full native bitmap */ void LCDFN(bitmap)(const FBFN(data) *src, int x, int y, int width, int height) { LCDFN(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 LCDFN(putsxyofs)(int x, int y, int ofs, const unsigned char *str) { unsigned short ch; unsigned short *ucs; struct font* pf = font_get(current_vp->font); ucs = bidi_l2v(str, 1); while ((ch = *ucs++) != 0 && x < current_vp->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); LCDFN(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 LCDFN(putsxy)(int x, int y, const unsigned char *str) { LCDFN(putsxyofs)(x, y, 0, str); } /*** line oriented text output ***/ /* put a string at a given char position */ void LCDFN(puts)(int x, int y, const unsigned char *str) { LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, 0); } void LCDFN(puts_style)(int x, int y, const unsigned char *str, int style) { LCDFN(puts_style_offset)(x, y, str, style, 0); } void LCDFN(puts_offset)(int x, int y, const unsigned char *str, int offset) { LCDFN(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 LCDFN(puts_style_offset)(int x, int y, const unsigned char *str, int style, int offset) { int xpos,ypos,w,h,xrect; int lastmode = current_vp->drawmode; /* make sure scrolling is turned off on the line we are updating */ LCDFN(scroll_stop_line)(current_vp, y); if(!str || !str[0]) return; LCDFN(getstringsize)(str, &w, &h); xpos = x*w / utf8length((char *)str); ypos = y*h; current_vp->drawmode = (style & STYLE_INVERT) ? (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID; LCDFN(putsxyofs)(xpos, ypos, offset, str); current_vp->drawmode ^= DRMODE_INVERSEVID; xrect = xpos + MAX(w - offset, 0); LCDFN(fillrect)(xrect, ypos, current_vp->width - xrect, h); current_vp->drawmode = lastmode; } /*** scrolling ***/ void LCDFN(puts_scroll)(int x, int y, const unsigned char *string) { LCDFN(puts_scroll_style)(x, y, string, STYLE_DEFAULT); } void LCDFN(puts_scroll_style)(int x, int y, const unsigned char *string, int style) { LCDFN(puts_scroll_style_offset)(x, y, string, style, 0); } void LCDFN(puts_scroll_offset)(int x, int y, const unsigned char *string, int offset) { LCDFN(puts_scroll_style_offset)(x, y, string, STYLE_DEFAULT, offset); } void LCDFN(puts_scroll_style_offset)(int x, int y, const unsigned char *string, int style, int offset) { struct scrollinfo* s; int w, h; if ((unsigned)y >= (unsigned)current_vp->height) return; /* remove any previously scrolling line at the same location */ LCDFN(scroll_stop_line)(current_vp, y); if (LCDFN(scroll_info).lines >= LCDM(SCROLLABLE_LINES)) return; s = &LCDFN(scroll_info).scroll[LCDFN(scroll_info).lines]; s->start_tick = current_tick + LCDFN(scroll_info).delay; s->style = style; if (style & STYLE_INVERT) { LCDFN(puts_style_offset)(x,y,string,STYLE_INVERT,offset); } else LCDFN(puts_offset)(x,y,string,offset); LCDFN(getstringsize)(string, &w, &h); if (current_vp->width - x * 8 < w) { /* prepare scroll line */ char *end; memset(s->line, 0, sizeof s->line); strcpy(s->line, string); /* get width */ s->width = LCDFN(getstringsize)(s->line, &w, &h); /* scroll bidirectional or forward only depending on the string width */ if ( LCDFN(scroll_info).bidir_limit ) { s->bidir = s->width < (current_vp->width) * (100 + LCDFN(scroll_info).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 = LCDFN(getstringsize)(s->line, &w, &h); } end = strchr(s->line, '\0'); strncpy(end, (char *)string, current_vp->width/2); s->vp = current_vp; s->y = y; s->len = utf8length((char *)string); s->offset = offset; s->startx = x * s->width / s->len; s->backward = false; LCDFN(scroll_info).lines++; } } void LCDFN(scroll_fn)(void) { struct font* pf; struct scrollinfo* s; int index; int xpos, ypos; int lastmode; struct viewport* old_vp = current_vp; for ( index = 0; index < LCDFN(scroll_info).lines; index++ ) { s = &LCDFN(scroll_info).scroll[index]; /* check pause */ if (TIME_BEFORE(current_tick, s->start_tick)) continue; LCDFN(set_viewport)(s->vp); if (s->backward) s->offset -= LCDFN(scroll_info).step; else s->offset += LCDFN(scroll_info).step; pf = font_get(current_vp->font); xpos = s->startx; ypos = s->y * 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 + LCDFN(scroll_info).delay * 2; } if (s->offset >= s->width - (current_vp->width - xpos)) { /* at end of line */ s->offset = s->width - (current_vp->width - xpos); s->backward = true; s->start_tick = current_tick + LCDFN(scroll_info).delay * 2; } } else { /* scroll forward the whole time */ if (s->offset >= s->width) s->offset %= s->width; } lastmode = current_vp->drawmode; current_vp->drawmode = (s->style&STYLE_INVERT) ? (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID; LCDFN(putsxyofs)(xpos, ypos, s->offset, s->line); current_vp->drawmode = lastmode; LCDFN(update_viewport_rect)(xpos, ypos, current_vp->width - xpos, pf->height); } LCDFN(set_viewport)(old_vp); }