| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2006 Jens Arnold |
| * |
| * Rockbox driver for 2bit vertically interleaved remote 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 "lcd-remote.h" |
| #include "kernel.h" |
| #include "thread.h" |
| #include <string.h> |
| #include <stdlib.h> |
| #include "memory.h" |
| #include "file.h" |
| #include "debug.h" |
| #include "system.h" |
| #include "font.h" |
| #include "rbunicode.h" |
| #include "bidi.h" |
| #include "lcd-remote-target.h" |
| |
| #define SCROLLABLE_LINES (((LCD_REMOTE_HEIGHT+4)/5 < 32) ? (LCD_REMOTE_HEIGHT+4)/5 : 32) |
| |
| /*** globals ***/ |
| |
| fb_remote_data lcd_remote_framebuffer[LCD_REMOTE_FBHEIGHT][LCD_REMOTE_FBWIDTH] |
| IBSS_ATTR; |
| |
| static const fb_remote_data patterns[4] = {0xFFFF, 0xFF00, 0x00FF, 0x0000}; |
| |
| static fb_remote_data* remote_backdrop = NULL; |
| static long remote_backdrop_offset IDATA_ATTR = 0; |
| |
| static unsigned fg_pattern IDATA_ATTR = 0xFFFF; /* initially black */ |
| static unsigned bg_pattern IDATA_ATTR = 0x0000; /* initially white */ |
| 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 long scroll_stack[DEFAULT_STACK_SIZE/sizeof(long)]; |
| static const char scroll_name[] = "remote_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 |
| }; |
| |
| /* remote hotplug */ |
| #ifndef SIMULATOR |
| struct event_queue remote_scroll_queue; |
| #endif |
| |
| /*** parameter handling ***/ |
| 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; |
| } |
| |
| void lcd_remote_set_drawmode(int mode) |
| { |
| drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); |
| } |
| |
| int lcd_remote_get_drawmode(void) |
| { |
| return drawmode; |
| } |
| |
| void lcd_remote_set_foreground(unsigned brightness) |
| { |
| fg_pattern = patterns[brightness & 3]; |
| } |
| |
| unsigned lcd_remote_get_foreground(void) |
| { |
| return (~fg_pattern >> 7) & 3; |
| } |
| |
| void lcd_remote_set_background(unsigned brightness) |
| { |
| bg_pattern = patterns[brightness & 3]; |
| } |
| |
| unsigned lcd_remote_get_background(void) |
| { |
| return (~bg_pattern >> 7) & 3; |
| } |
| |
| void lcd_remote_set_drawinfo(int mode, unsigned fg_brightness, |
| unsigned bg_brightness) |
| { |
| lcd_remote_set_drawmode(mode); |
| lcd_remote_set_foreground(fg_brightness); |
| lcd_remote_set_background(bg_brightness); |
| } |
| |
| void lcd_remote_setmargins(int x, int y) |
| { |
| xmargin = x; |
| ymargin = y; |
| } |
| |
| int lcd_remote_getxmargin(void) |
| { |
| return xmargin; |
| } |
| |
| int lcd_remote_getymargin(void) |
| { |
| return ymargin; |
| } |
| |
| void lcd_remote_setfont(int newfont) |
| { |
| curfont = newfont; |
| } |
| |
| int lcd_remote_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) |
| { |
| unsigned mask = 0x0101 << (y & 7); |
| fb_remote_data *address = &lcd_remote_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); |
| fb_remote_data *address = &lcd_remote_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); |
| fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x]; |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(fb_remote_data *)((long)address |
| + remote_backdrop_offset)) & mask); |
| } |
| |
| static void flippixel(int x, int y) |
| { |
| unsigned mask = 0x0101 << (y & 7); |
| fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x]; |
| |
| *address ^= mask; |
| } |
| |
| static void nopixel(int x, int y) |
| { |
| (void)x; |
| (void)y; |
| } |
| |
| lcd_remote_pixelfunc_type* const lcd_remote_pixelfuncs_bgcolor[8] = { |
| flippixel, nopixel, setpixel, setpixel, |
| nopixel, clearpixel, nopixel, clearpixel |
| }; |
| |
| lcd_remote_pixelfunc_type* const lcd_remote_pixelfuncs_backdrop[8] = { |
| flippixel, nopixel, setpixel, setpixel, |
| nopixel, clearimgpixel, nopixel, clearimgpixel |
| }; |
| |
| lcd_remote_pixelfunc_type* const *lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_bgcolor; |
| |
| /* 'mask' and 'bits' contain 2 bits per pixel */ |
| static void flipblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void flipblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| *address ^= bits & mask; |
| } |
| |
| static void bgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void bgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ bg_pattern) & mask & ~bits); |
| } |
| |
| static void bgimgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void bgimgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(fb_remote_data *)((long)address |
| + remote_backdrop_offset)) & mask & ~bits); |
| } |
| |
| static void fgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void fgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ fg_pattern) & mask & bits); |
| } |
| |
| static void solidblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void solidblock(fb_remote_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 solidimgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void solidimgblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| unsigned bgp = *(fb_remote_data *)((long)address + remote_backdrop_offset); |
| |
| bits = bgp ^ ((bgp ^ fg_pattern) & bits); |
| *address = data ^ ((data ^ bits) & mask); |
| } |
| |
| static void flipinvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void flipinvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| *address ^= ~bits & mask; |
| } |
| |
| static void bginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void bginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ bg_pattern) & mask & bits); |
| } |
| |
| static void bgimginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void bgimginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ *(fb_remote_data *)((long)address |
| + remote_backdrop_offset)) & mask & bits); |
| } |
| |
| static void fginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void fginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| *address = data ^ ((data ^ fg_pattern) & mask & ~bits); |
| } |
| |
| static void solidinvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void solidinvblock(fb_remote_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 solidimginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| ICODE_ATTR; |
| static void solidimginvblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| unsigned fgp = fg_pattern; |
| |
| bits = fgp ^ ((fgp ^ *(fb_remote_data *)((long)address |
| + remote_backdrop_offset)) & bits); |
| *address = data ^ ((data ^ bits) & mask); |
| } |
| |
| lcd_remote_blockfunc_type* const lcd_remote_blockfuncs_bgcolor[8] = { |
| flipblock, bgblock, fgblock, solidblock, |
| flipinvblock, bginvblock, fginvblock, solidinvblock |
| }; |
| |
| lcd_remote_blockfunc_type* const lcd_remote_blockfuncs_backdrop[8] = { |
| flipblock, bgimgblock, fgblock, solidimgblock, |
| flipinvblock, bgimginvblock, fginvblock, solidimginvblock |
| }; |
| |
| lcd_remote_blockfunc_type* const *lcd_remote_blockfuncs = lcd_remote_blockfuncs_bgcolor; |
| |
| |
| void lcd_remote_set_backdrop(fb_remote_data* backdrop) |
| { |
| remote_backdrop = backdrop; |
| if (backdrop) |
| { |
| remote_backdrop_offset = (long)backdrop - (long)lcd_remote_framebuffer; |
| lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_backdrop; |
| lcd_remote_blockfuncs = lcd_remote_blockfuncs_backdrop; |
| } |
| else |
| { |
| remote_backdrop_offset = 0; |
| lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_bgcolor; |
| lcd_remote_blockfuncs = lcd_remote_blockfuncs_bgcolor; |
| } |
| } |
| |
| fb_remote_data* lcd_remote_get_backdrop(void) |
| { |
| return remote_backdrop; |
| } |
| |
| static inline void setblock(fb_remote_data *address, unsigned mask, unsigned bits) |
| { |
| unsigned data = *address; |
| |
| bits ^= data; |
| *address = data ^ (bits & mask); |
| } |
| |
| /*** drawing functions ***/ |
| |
| /* Clear the whole display */ |
| void lcd_remote_clear_display(void) |
| { |
| if (drawmode & DRMODE_INVERSEVID) |
| { |
| memset(lcd_remote_framebuffer, fg_pattern, |
| sizeof lcd_remote_framebuffer); |
| } |
| else |
| { |
| if (remote_backdrop) |
| memcpy(lcd_remote_framebuffer, remote_backdrop, |
| sizeof lcd_remote_framebuffer); |
| else |
| memset(lcd_remote_framebuffer, bg_pattern, |
| sizeof lcd_remote_framebuffer); |
| } |
| scrolling_lines = 0; |
| } |
| |
| /* Set a single pixel */ |
| void lcd_remote_drawpixel(int x, int y) |
| { |
| if (((unsigned)x < LCD_REMOTE_WIDTH) && ((unsigned)y < LCD_REMOTE_HEIGHT)) |
| lcd_remote_pixelfuncs[drawmode](x, y); |
| } |
| |
| /* Draw a line */ |
| void lcd_remote_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_remote_pixelfunc_type *pfunc = lcd_remote_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_REMOTE_WIDTH) && ((unsigned)y < LCD_REMOTE_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_remote_hline(int x1, int x2, int y) |
| { |
| int x; |
| fb_remote_data *dst, *dst_end; |
| unsigned mask; |
| lcd_remote_blockfunc_type *bfunc; |
| |
| /* direction flip */ |
| if (x2 < x1) |
| { |
| x = x1; |
| x1 = x2; |
| x2 = x; |
| } |
| |
| /* nothing to draw? */ |
| if (((unsigned)y >= LCD_REMOTE_HEIGHT) || (x1 >= LCD_REMOTE_WIDTH) |
| || (x2 < 0)) |
| return; |
| |
| /* clipping */ |
| if (x1 < 0) |
| x1 = 0; |
| if (x2 >= LCD_REMOTE_WIDTH) |
| x2 = LCD_REMOTE_WIDTH-1; |
| |
| bfunc = lcd_remote_blockfuncs[drawmode]; |
| dst = &lcd_remote_framebuffer[y>>3][x1]; |
| mask = 0x0101 << (y & 7); |
| |
| dst_end = dst + x2 - x1; |
| do |
| bfunc(dst++, mask, 0xFFFFu); |
| while (dst <= dst_end); |
| } |
| |
| /* Draw a vertical line (optimised) */ |
| void lcd_remote_vline(int x, int y1, int y2) |
| { |
| int ny; |
| fb_remote_data *dst; |
| unsigned mask, mask_bottom; |
| lcd_remote_blockfunc_type *bfunc; |
| |
| /* direction flip */ |
| if (y2 < y1) |
| { |
| ny = y1; |
| y1 = y2; |
| y2 = ny; |
| } |
| |
| /* nothing to draw? */ |
| if (((unsigned)x >= LCD_REMOTE_WIDTH) || (y1 >= LCD_REMOTE_HEIGHT) |
| || (y2 < 0)) |
| return; |
| |
| /* clipping */ |
| if (y1 < 0) |
| y1 = 0; |
| if (y2 >= LCD_REMOTE_HEIGHT) |
| y2 = LCD_REMOTE_HEIGHT-1; |
| |
| bfunc = lcd_remote_blockfuncs[drawmode]; |
| dst = &lcd_remote_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 += LCD_REMOTE_WIDTH; |
| mask = 0xFFFFu; |
| } |
| mask &= mask_bottom; |
| bfunc(dst, mask, 0xFFFFu); |
| } |
| |
| /* Draw a rectangular box */ |
| void lcd_remote_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_remote_vline(x, y, y2); |
| lcd_remote_vline(x2, y, y2); |
| lcd_remote_hline(x, x2, y); |
| lcd_remote_hline(x, x2, y2); |
| } |
| |
| /* Fill a rectangular area */ |
| void lcd_remote_fillrect(int x, int y, int width, int height) |
| { |
| int ny; |
| fb_remote_data *dst, *dst_end; |
| unsigned mask, mask_bottom; |
| unsigned bits = 0; |
| lcd_remote_blockfunc_type *bfunc; |
| bool fillopt = false; |
| |
| /* nothing to draw? */ |
| if ((width <= 0) || (height <= 0) || (x >= LCD_REMOTE_WIDTH) |
| || (y >= LCD_REMOTE_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_REMOTE_WIDTH) |
| width = LCD_REMOTE_WIDTH - x; |
| if (y + height > LCD_REMOTE_HEIGHT) |
| height = LCD_REMOTE_HEIGHT - y; |
| |
| if (drawmode & DRMODE_INVERSEVID) |
| { |
| if ((drawmode & DRMODE_BG) && !remote_backdrop) |
| { |
| fillopt = true; |
| bits = bg_pattern; |
| } |
| } |
| else |
| { |
| if (drawmode & DRMODE_FG) |
| { |
| fillopt = true; |
| bits = fg_pattern; |
| } |
| } |
| bfunc = lcd_remote_blockfuncs[drawmode]; |
| dst = &lcd_remote_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 |
| { |
| fb_remote_data *dst_row = dst; |
| |
| dst_end = dst_row + width; |
| do |
| bfunc(dst_row++, mask, 0xFFFFu); |
| while (dst_row < dst_end); |
| } |
| |
| dst += LCD_REMOTE_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 lcd_remote_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_remote_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_remote_data *dst, *dst_end; |
| unsigned data, mask, mask_bottom; |
| lcd_remote_blockfunc_type *bfunc; |
| |
| /* nothing to draw? */ |
| if ((width <= 0) || (height <= 0) || (x >= LCD_REMOTE_WIDTH) |
| || (y >= LCD_REMOTE_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_REMOTE_WIDTH) |
| width = LCD_REMOTE_WIDTH - x; |
| if (y + height > LCD_REMOTE_HEIGHT) |
| height = LCD_REMOTE_HEIGHT - y; |
| |
| src += stride * (src_y >> 3) + src_x; /* move starting point */ |
| src_y &= 7; |
| y -= src_y; |
| dst = &lcd_remote_framebuffer[y>>3][x]; |
| shift = y & 7; |
| ny = height - 1 + shift + src_y; |
| |
| bfunc = lcd_remote_blockfuncs[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; |
| fb_remote_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 += LCD_REMOTE_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++; |
| fb_remote_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 += LCD_REMOTE_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 lcd_remote_mono_bitmap(const unsigned char *src, int x, int y, int width, |
| int height) |
| { |
| lcd_remote_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 lcd_remote_bitmap_part(const fb_remote_data *src, int src_x, int src_y, |
| int stride, int x, int y, int width, int height) |
| ICODE_ATTR; |
| void lcd_remote_bitmap_part(const fb_remote_data *src, int src_x, int src_y, |
| int stride, int x, int y, int width, int height) |
| { |
| int shift, ny; |
| fb_remote_data *dst, *dst_end; |
| unsigned mask, mask_bottom; |
| |
| /* nothing to draw? */ |
| if ((width <= 0) || (height <= 0) || (x >= LCD_REMOTE_WIDTH) |
| || (y >= LCD_REMOTE_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_REMOTE_WIDTH) |
| width = LCD_REMOTE_WIDTH - x; |
| if (y + height > LCD_REMOTE_HEIGHT) |
| height = LCD_REMOTE_HEIGHT - y; |
| |
| src += stride * (src_y >> 3) + src_x; /* move starting point */ |
| src_y &= 7; |
| y -= src_y; |
| dst = &lcd_remote_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(fb_remote_data)); |
| else |
| { |
| const fb_remote_data *src_row = src; |
| fb_remote_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_REMOTE_WIDTH; |
| mask = 0xFFFFu; |
| } |
| mask &= mask_bottom; |
| |
| if (mask == 0xFFFFu) |
| memcpy(dst, src, width * sizeof(fb_remote_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 fb_remote_data *src_col = src++; |
| fb_remote_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 += LCD_REMOTE_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 lcd_remote_bitmap(const fb_remote_data *src, int x, int y, int width, |
| int height) |
| { |
| lcd_remote_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_remote_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_REMOTE_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_remote_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_remote_putsxy(int x, int y, const unsigned char *str) |
| { |
| lcd_remote_putsxyofs(x, y, 0, str); |
| } |
| |
| /*** line oriented text output ***/ |
| |
| /* put a string at a given char position */ |
| void lcd_remote_puts(int x, int y, const unsigned char *str) |
| { |
| lcd_remote_puts_style_offset(x, y, str, STYLE_DEFAULT, 0); |
| } |
| |
| void lcd_remote_puts_style(int x, int y, const unsigned char *str, int style) |
| { |
| lcd_remote_puts_style_offset(x, y, str, style, 0); |
| } |
| |
| void lcd_remote_puts_offset(int x, int y, const unsigned char *str, int offset) |
| { |
| lcd_remote_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_remote_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_remote_getstringsize(str, &w, &h); |
| xpos = xmargin + x*w / utf8length((char *)str); |
| ypos = ymargin + y*h; |
| drawmode = (style & STYLE_INVERT) ? |
| (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID; |
| lcd_remote_putsxyofs(xpos, ypos, offset, str); |
| drawmode ^= DRMODE_INVERSEVID; |
| xrect = xpos + MAX(w - offset, 0); |
| lcd_remote_fillrect(xrect, ypos, LCD_REMOTE_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_remote_invertscroll(int x, int y) |
| { |
| struct scrollinfo* s; |
| |
| (void)x; |
| |
| s = &scroll[y]; |
| s->invert = !s->invert; |
| } |
| |
| void lcd_remote_stop_scroll(void) |
| { |
| scrolling_lines=0; |
| } |
| |
| void lcd_remote_scroll_speed(int speed) |
| { |
| scroll_ticks = scroll_tick_table[speed]; |
| } |
| |
| void lcd_remote_scroll_step(int step) |
| { |
| scroll_step = step; |
| } |
| |
| void lcd_remote_scroll_delay(int ms) |
| { |
| scroll_delay = ms / (HZ / 10); |
| } |
| |
| void lcd_remote_bidir_scroll(int percent) |
| { |
| bidir_limit = percent; |
| } |
| |
| void lcd_remote_puts_scroll(int x, int y, const unsigned char *string) |
| { |
| lcd_remote_puts_scroll_style(x, y, string, STYLE_DEFAULT); |
| } |
| |
| void lcd_remote_puts_scroll_style(int x, int y, const unsigned char *string, int style) |
| { |
| lcd_remote_puts_scroll_style_offset(x, y, string, style, 0); |
| } |
| |
| void lcd_remote_puts_scroll_offset(int x, int y, const unsigned char *string, int offset) |
| { |
| lcd_remote_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset); |
| } |
| |
| void lcd_remote_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_remote_puts_style_offset(x,y,string,STYLE_INVERT,offset); |
| } |
| else |
| lcd_remote_puts_offset(x,y,string,offset); |
| |
| lcd_remote_getstringsize(string, &w, &h); |
| |
| if (LCD_REMOTE_WIDTH - x * 8 - xmargin < w) { |
| /* prepare scroll line */ |
| char *end; |
| |
| memset(s->line, 0, sizeof s->line); |
| strcpy(s->line, (char *)string); |
| |
| /* get width */ |
| s->width = lcd_remote_getstringsize((unsigned char *)s->line, &w, &h); |
| |
| /* scroll bidirectional or forward only depending on the string |
| width */ |
| if ( bidir_limit ) { |
| s->bidir = s->width < (LCD_REMOTE_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_remote_getstringsize((unsigned char *)s->line, &w, &h); |
| } |
| |
| end = strchr(s->line, '\0'); |
| strncpy(end, (char *)string, LCD_REMOTE_WIDTH/2); |
| |
| s->len = utf8length((char *)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; |
| long delay = 0; |
| long next_tick = current_tick; |
| #ifndef SIMULATOR |
| struct event ev; |
| #endif |
| |
| /* initialize scroll struct array */ |
| scrolling_lines = 0; |
| |
| while ( 1 ) { |
| |
| #ifdef SIMULATOR |
| sleep(delay); |
| #else |
| if (remote_initialized) |
| queue_wait_w_tmo(&remote_scroll_queue, &ev, delay); |
| else |
| queue_wait(&remote_scroll_queue, &ev); |
| |
| switch (ev.id) |
| { |
| case REMOTE_INIT_LCD: |
| lcd_remote_on(); |
| lcd_remote_update(); |
| break; |
| |
| case REMOTE_DEINIT_LCD: |
| lcd_remote_off(); |
| break; |
| } |
| |
| delay = next_tick - current_tick - 1; |
| if (delay >= 0) |
| continue; |
| #endif |
| |
| 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_REMOTE_WIDTH - xpos)) { |
| /* at end of line */ |
| s->offset = s->width - (LCD_REMOTE_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_remote_putsxyofs(xpos, ypos, s->offset, s->line); |
| drawmode = lastmode; |
| lcd_remote_update_rect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height); |
| } |
| |
| |
| next_tick += scroll_ticks; |
| delay = next_tick - current_tick - 1; |
| if (delay < 0) |
| { |
| next_tick = current_tick + 1; |
| delay = 0; |
| } |
| } |
| } |
| |
| /* LCD init */ |
| void lcd_remote_init(void) |
| { |
| #ifndef SIMULATOR |
| /* Call device specific init */ |
| lcd_remote_init_device(); |
| /* private queue */ |
| queue_init(&remote_scroll_queue, false); |
| #endif |
| create_thread(scroll_thread, scroll_stack, |
| sizeof(scroll_stack), scroll_name IF_PRIO(, PRIORITY_USER_INTERFACE)); |
| } |