| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2004 by Linus Nielsen Feltzing |
| * |
| * 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 "system.h" |
| #include "cpu.h" |
| #include "kernel.h" |
| #include "lcd.h" |
| #include "thread.h" |
| #include <string.h> |
| #include <stdlib.h> |
| #include "file.h" |
| #include "debug.h" |
| #include "font.h" |
| #include "rbunicode.h" |
| #include "bidi.h" |
| #include "scroll_engine.h" |
| |
| /*** globals ***/ |
| |
| fb_data lcd_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH] IBSS_ATTR; |
| |
| const unsigned char lcd_dibits[16] ICONST_ATTR = { |
| 0x00, 0x03, 0x0C, 0x0F, 0x30, 0x33, 0x3C, 0x3F, |
| 0xC0, 0xC3, 0xCC, 0xCF, 0xF0, 0xF3, 0xFC, 0xFF |
| }; |
| |
| static const unsigned char pixmask[4] ICONST_ATTR = { |
| 0x03, 0x0C, 0x30, 0xC0 |
| }; |
| |
| 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 |
| }; |
| |
| static struct viewport* current_vp IBSS_ATTR; |
| static unsigned fg_pattern IBSS_ATTR; |
| static unsigned bg_pattern IBSS_ATTR; |
| |
| /* LCD init */ |
| void lcd_init(void) |
| { |
| /* Initialise the viewport */ |
| lcd_set_viewport(NULL); |
| |
| 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; |
| |
| fg_pattern = 0x55 * (~current_vp->fg_pattern & 3); |
| bg_pattern = 0x55 * (~current_vp->bg_pattern & 3); |
| } |
| |
| 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 brightness) |
| { |
| current_vp->fg_pattern = brightness; |
| fg_pattern = 0x55 * (~brightness & 3); |
| } |
| |
| unsigned lcd_get_foreground(void) |
| { |
| return current_vp->fg_pattern; |
| } |
| |
| void lcd_set_background(unsigned brightness) |
| { |
| current_vp->bg_pattern = brightness; |
| bg_pattern = 0x55 * (~brightness & 3); |
| } |
| |
| unsigned lcd_get_background(void) |
| { |
| return current_vp->bg_pattern; |
| } |
| |
| void lcd_set_drawinfo(int mode, unsigned fg_brightness, unsigned bg_brightness) |
| { |
| lcd_set_drawmode(mode); |
| lcd_set_foreground(fg_brightness); |
| lcd_set_background(bg_brightness); |
| } |
| |
| 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 ***/ |
| |
| static void setpixel(int x, int y) |
| { |
| unsigned mask = pixmask[y & 3]; |
| fb_data *address = &lcd_framebuffer[y>>2][x]; |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ fg_pattern) & mask); |
| } |
| |
| static void clearpixel(int x, int y) |
| { |
| unsigned mask = pixmask[y & 3]; |
| fb_data *address = &lcd_framebuffer[y>>2][x]; |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ bg_pattern) & mask); |
| } |
| |
| static void clearimgpixel(int x, int y) |
| { |
| unsigned mask = pixmask[y & 3]; |
| fb_data *address = &lcd_framebuffer[y>>2][x]; |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(address + lcd_backdrop_offset)) & mask); |
| } |
| |
| static void flippixel(int x, int y) |
| { |
| unsigned mask = pixmask[y & 3]; |
| fb_data *address = &lcd_framebuffer[y>>2][x]; |
| |
| *address ^= mask; |
| } |
| |
| static void nopixel(int x, int y) |
| { |
| (void)x; |
| (void)y; |
| } |
| |
| lcd_pixelfunc_type* const lcd_pixelfuncs_bgcolor[8] = { |
| flippixel, nopixel, setpixel, setpixel, |
| nopixel, clearpixel, nopixel, clearpixel |
| }; |
| |
| lcd_pixelfunc_type* const lcd_pixelfuncs_backdrop[8] = { |
| flippixel, nopixel, setpixel, setpixel, |
| nopixel, clearimgpixel, nopixel, clearimgpixel |
| }; |
| |
| |
| lcd_pixelfunc_type* const * lcd_pixelfuncs = lcd_pixelfuncs_bgcolor; |
| |
| /* 'mask' and 'bits' contain 2 bits per pixel */ |
| static void ICODE_ATTR flipblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| *address ^= bits & mask; |
| } |
| |
| static void ICODE_ATTR bgblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ bg_pattern) & mask & ~bits); |
| } |
| |
| static void ICODE_ATTR bgimgblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(address + lcd_backdrop_offset)) & mask & ~bits); |
| } |
| |
| static void ICODE_ATTR fgblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ fg_pattern) & mask & bits); |
| } |
| |
| static void ICODE_ATTR solidblock(fb_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(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| unsigned bgp = *(address + lcd_backdrop_offset); |
| |
| bits = bgp ^ ((bgp ^ fg_pattern) & bits); |
| *address = data ^ ((data ^ bits) & mask); |
| } |
| |
| static void ICODE_ATTR flipinvblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| *address ^= ~bits & mask; |
| } |
| |
| static void ICODE_ATTR bginvblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ bg_pattern) & mask & bits); |
| } |
| |
| static void ICODE_ATTR bgimginvblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(address + lcd_backdrop_offset)) & mask & bits); |
| } |
| |
| static void ICODE_ATTR fginvblock(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ fg_pattern) & mask & ~bits); |
| } |
| |
| static void ICODE_ATTR solidinvblock(fb_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(fb_data *address, unsigned mask, |
| unsigned bits) |
| { |
| unsigned data = *address; |
| unsigned fgp = fg_pattern; |
| |
| bits = fgp ^ ((fgp ^ *(address + lcd_backdrop_offset)) & bits); |
| *address = data ^ ((data ^ bits) & mask); |
| } |
| |
| lcd_blockfunc_type* const lcd_blockfuncs_bgcolor[8] = { |
| flipblock, bgblock, fgblock, solidblock, |
| flipinvblock, bginvblock, fginvblock, solidinvblock |
| }; |
| |
| lcd_blockfunc_type* const lcd_blockfuncs_backdrop[8] = { |
| flipblock, bgimgblock, fgblock, solidimgblock, |
| flipinvblock, bgimginvblock, fginvblock, solidimginvblock |
| }; |
| |
| lcd_blockfunc_type* const * lcd_blockfuncs = lcd_blockfuncs_bgcolor; |
| |
| |
| void lcd_set_backdrop(fb_data* backdrop) |
| { |
| lcd_backdrop = backdrop; |
| if (backdrop) |
| { |
| lcd_backdrop_offset = (long)backdrop - (long)lcd_framebuffer; |
| lcd_pixelfuncs = lcd_pixelfuncs_backdrop; |
| lcd_blockfuncs = lcd_blockfuncs_backdrop; |
| } |
| else |
| { |
| lcd_backdrop_offset = 0; |
| lcd_pixelfuncs = lcd_pixelfuncs_bgcolor; |
| lcd_blockfuncs = lcd_blockfuncs_bgcolor; |
| } |
| } |
| |
| fb_data* lcd_get_backdrop(void) |
| { |
| return lcd_backdrop; |
| } |
| |
| |
| static inline void setblock(fb_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| bits ^= data; |
| *address = data ^ (bits & mask); |
| } |
| |
| /*** drawing functions ***/ |
| |
| /* Clear the whole display */ |
| void lcd_clear_display(void) |
| { |
| if (current_vp->drawmode & DRMODE_INVERSEVID) |
| { |
| memset(lcd_framebuffer, fg_pattern, sizeof lcd_framebuffer); |
| } |
| else |
| { |
| if (lcd_backdrop) |
| memcpy(lcd_framebuffer, lcd_backdrop, sizeof lcd_framebuffer); |
| else |
| memset(lcd_framebuffer, bg_pattern, sizeof lcd_framebuffer); |
| } |
| |
| lcd_scroll_info.lines = 0; |
| } |
| |
| /* Clear the current viewport */ |
| void lcd_clear_viewport(void) |
| { |
| int lastmode; |
| |
| if (current_vp == &default_vp) |
| { |
| lcd_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; |
| |
| lcd_fillrect(0, 0, current_vp->width, current_vp->height); |
| |
| current_vp->drawmode = lastmode; |
| |
| lcd_scroll_stop(current_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_pixelfuncs[current_vp->drawmode](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_pixelfunc_type *pfunc = lcd_pixelfuncs[current_vp->drawmode]; |
| |
| deltax = abs(x2 - x1); |
| if (deltax == 0) |
| { |
| DEBUGF("lcd_drawline() called for vertical line - optimisation.\n"); |
| lcd_vline(x1, y1, y2); |
| return; |
| } |
| deltay = abs(y2 - y1); |
| if (deltay == 0) |
| { |
| DEBUGF("lcd_drawline() called for horizontal line - optimisation.\n"); |
| lcd_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 lcd_hline(int x1, int x2, int y) |
| { |
| int x; |
| int width; |
| fb_data *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 >= (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 = lcd_blockfuncs[current_vp->drawmode]; |
| dst = &lcd_framebuffer[y>>2][x1]; |
| mask = pixmask[y & 3]; |
| |
| dst_end = dst + width; |
| 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; |
| fb_data *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 >= (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 = lcd_blockfuncs[current_vp->drawmode]; |
| dst = &lcd_framebuffer[y1>>2][x]; |
| ny = y2 - (y1 & ~3); |
| mask = 0xFFu << (2 * (y1 & 3)); |
| mask_bottom = 0xFFu >> (2 * (~ny & 3)); |
| |
| for (; ny >= 4; ny -= 4) |
| { |
| 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; |
| fb_data *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 >= 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) && !lcd_backdrop) |
| { |
| fillopt = true; |
| bits = bg_pattern; |
| } |
| } |
| else |
| { |
| if (current_vp->drawmode & DRMODE_FG) |
| { |
| fillopt = true; |
| bits = fg_pattern; |
| } |
| } |
| bfunc = lcd_blockfuncs[current_vp->drawmode]; |
| dst = &lcd_framebuffer[y>>2][x]; |
| ny = height - 1 + (y & 3); |
| mask = 0xFFu << (2 * (y & 3)); |
| mask_bottom = 0xFFu >> (2 * (~ny & 3)); |
| |
| for (; ny >= 4; ny -= 4) |
| { |
| if (fillopt && (mask == 0xFFu)) |
| memset(dst, bits, width); |
| else |
| { |
| fb_data *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 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 lcd_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; |
| fb_data *dst, *dst_end; |
| unsigned mask, mask_bottom; |
| lcd_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 = &lcd_framebuffer[y>>2][x]; |
| shift = y & 3; |
| ny = height - 1 + shift + src_y; |
| |
| bfunc = lcd_blockfuncs[current_vp->drawmode]; |
| mask = 0xFFu << (shift + src_y); |
| mask_bottom = 0xFFu >> (~ny & 7); |
| |
| if (shift == 0) |
| { |
| unsigned dmask1, dmask2, data; |
| |
| for (; ny >= 8; ny -= 8) |
| { |
| const unsigned char *src_row = src; |
| fb_data *dst_row = dst + LCD_WIDTH; |
| |
| dmask1 = lcd_dibits[mask&0x0F]; |
| dmask2 = lcd_dibits[(mask>>4)&0x0F]; |
| dst_end = dst_row + width; |
| |
| if (dmask1 != 0) |
| { |
| do |
| { |
| data = *src_row++; |
| bfunc(dst_row - LCD_WIDTH, dmask1, lcd_dibits[data&0x0F]); |
| bfunc(dst_row++, dmask2, lcd_dibits[(data>>4)&0x0F]); |
| } |
| while (dst_row < dst_end); |
| } |
| else |
| { |
| do |
| bfunc(dst_row++, dmask2, lcd_dibits[((*src_row++)>>4)&0x0F]); |
| while (dst_row < dst_end); |
| } |
| src += stride; |
| dst += 2*LCD_WIDTH; |
| mask = 0xFFu; |
| } |
| mask &= mask_bottom; |
| dmask1 = lcd_dibits[mask&0x0F]; |
| dmask2 = lcd_dibits[(mask>>4)&0x0F]; |
| dst_end = dst + width; |
| |
| if (dmask1 != 0) |
| { |
| if (dmask2 != 0) |
| { |
| do |
| { |
| data = *src++; |
| bfunc(dst, dmask1, lcd_dibits[data&0x0F]); |
| bfunc((dst++) + LCD_WIDTH, dmask2, lcd_dibits[(data>>4)&0x0F]); |
| } |
| while (dst < dst_end); |
| } |
| else |
| { |
| do |
| bfunc(dst++, dmask1, lcd_dibits[(*src++)&0x0F]); |
| while (dst < dst_end); |
| } |
| } |
| else |
| { |
| do |
| bfunc((dst++) + LCD_WIDTH, dmask2, lcd_dibits[((*src++)>>4)&0x0F]); |
| while (dst < dst_end); |
| } |
| } |
| else |
| { |
| dst_end = dst + width; |
| do |
| { |
| const unsigned char *src_col = src++; |
| fb_data *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) |
| { |
| if (mask_col & 0x0F) |
| bfunc(dst_col, lcd_dibits[mask_col&0x0F], lcd_dibits[data&0x0F]); |
| bfunc(dst_col + LCD_WIDTH, lcd_dibits[(mask_col>>4)&0x0F], |
| lcd_dibits[(data>>4)&0x0F]); |
| mask_col = 0xFFu; |
| } |
| else |
| mask_col >>= 8; |
| |
| src_col += stride; |
| dst_col += 2*LCD_WIDTH; |
| data >>= 8; |
| } |
| data |= *src_col << shift; |
| mask_bottom &= mask_col; |
| if (mask_bottom & 0x0F) |
| bfunc(dst_col, lcd_dibits[mask_bottom&0x0F], lcd_dibits[data&0x0F]); |
| if (mask_bottom & 0xF0) |
| bfunc(dst_col + LCD_WIDTH, lcd_dibits[(mask_bottom&0xF0)>>4], |
| lcd_dibits[(data>>4)&0x0F]); |
| } |
| while (dst < dst_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); |
| } |
| |
| /* About Rockbox' internal native bitmap format: |
| * |
| * A bitmap contains two bits for every pixel. 00 = white, 01 = light grey, |
| * 10 = dark grey, 11 = black. 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..3, the second row defines pixel row 4..7 etc. |
| * |
| * This is the same as the internal lcd hw format. */ |
| |
| /* 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) |
| { |
| int shift, ny; |
| fb_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 >> 2) + src_x; /* move starting point */ |
| src_y &= 3; |
| y -= src_y; |
| dst = &lcd_framebuffer[y>>2][x]; |
| shift = y & 3; |
| ny = height - 1 + shift + src_y; |
| |
| mask = 0xFFu << (2 * (shift + src_y)); |
| mask_bottom = 0xFFu >> (2 * (~ny & 3)); |
| |
| if (shift == 0) |
| { |
| for (; ny >= 4; ny -= 4) |
| { |
| if (mask == 0xFFu) |
| memcpy(dst, src, width); |
| else |
| { |
| const fb_data *src_row = src; |
| fb_data *dst_row = dst; |
| |
| dst_end = dst_row + width; |
| do |
| setblock(dst_row++, mask, *src_row++); |
| while (dst_row < dst_end); |
| } |
| src += stride; |
| dst += LCD_WIDTH; |
| mask = 0xFFu; |
| } |
| mask &= mask_bottom; |
| |
| if (mask == 0xFFu) |
| memcpy(dst, src, width); |
| else |
| { |
| dst_end = dst + width; |
| do |
| setblock(dst++, mask, *src++); |
| while (dst < dst_end); |
| } |
| } |
| else |
| { |
| shift *= 2; |
| dst_end = dst + width; |
| do |
| { |
| const fb_data *src_col = src++; |
| fb_data *dst_col = dst++; |
| unsigned mask_col = mask; |
| unsigned data = 0; |
| |
| for (y = ny; y >= 4; y -= 4) |
| { |
| data |= *src_col << shift; |
| |
| if (mask_col & 0xFFu) |
| { |
| setblock(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; |
| setblock(dst_col, mask_col & mask_bottom, data); |
| } |
| 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); |
| } |
| |
| /* 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(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); |
| |
| 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 = current_vp->drawmode; |
| |
| /* make sure scrolling is turned off on the line we are updating */ |
| lcd_scroll_stop_line(current_vp, y); |
| |
| if(!str || !str[0]) |
| return; |
| |
| lcd_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; |
| lcd_putsxyofs(xpos, ypos, offset, str); |
| current_vp->drawmode ^= DRMODE_INVERSEVID; |
| xrect = xpos + MAX(w - offset, 0); |
| lcd_fillrect(xrect, ypos, current_vp->width - xrect, h); |
| current_vp->drawmode = lastmode; |
| } |
| |
| /*** scrolling ***/ |
| |
| 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; |
| |
| if ((unsigned)y >= (unsigned)current_vp->height) |
| return; |
| |
| /* remove any previously scrolling line at the same location */ |
| lcd_scroll_stop_line(current_vp, y); |
| |
| if (lcd_scroll_info.lines >= LCD_SCROLLABLE_LINES) return; |
| |
| s = &lcd_scroll_info.scroll[lcd_scroll_info.lines]; |
| |
| s->start_tick = current_tick + lcd_scroll_info.delay; |
| s->style = style; |
| if (style & STYLE_INVERT) { |
| lcd_puts_style_offset(x,y,string,STYLE_INVERT,offset); |
| } |
| else |
| lcd_puts_offset(x,y,string,offset); |
| |
| lcd_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, (char *)string); |
| |
| /* get width */ |
| s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h); |
| |
| /* scroll bidirectional or forward only depending on the string |
| width */ |
| if ( lcd_scroll_info.bidir_limit ) { |
| s->bidir = s->width < (current_vp->width) * |
| (100 + lcd_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 = lcd_getstringsize((unsigned char *)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; |
| |
| lcd_scroll_info.lines++; |
| } |
| } |
| |
| void lcd_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 < lcd_scroll_info.lines; index++ ) { |
| s = &lcd_scroll_info.scroll[index]; |
| |
| /* check pause */ |
| if (TIME_BEFORE(current_tick, s->start_tick)) |
| continue; |
| |
| lcd_set_viewport(s->vp); |
| |
| if (s->backward) |
| s->offset -= lcd_scroll_info.step; |
| else |
| s->offset += lcd_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 + lcd_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 + lcd_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; |
| lcd_putsxyofs(xpos, ypos, s->offset, s->line); |
| current_vp->drawmode = lastmode; |
| lcd_update_viewport_rect(xpos, ypos, |
| current_vp->width - xpos, pf->height); |
| } |
| |
| lcd_set_viewport(old_vp); |
| } |