33bd218010
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9881 a1c6a512-1295-4272-9138-f99709370657
1443 lines
38 KiB
C
1443 lines
38 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 by Richard S. La Charité III
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "cpu.h"
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#include "lcd.h"
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#include "lcd-remote.h"
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#include "kernel.h"
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#include "thread.h"
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#include <string.h>
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#include <stdlib.h>
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#include "file.h"
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#include "debug.h"
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#include "system.h"
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#include "font.h"
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#include "rbunicode.h"
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#include "bidi.h"
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/*** definitions ***/
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#define LCD_REMOTE_CNTL_ADC_NORMAL 0xa0
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#define LCD_REMOTE_CNTL_ADC_REVERSE 0xa1
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#define LCD_REMOTE_CNTL_SHL_NORMAL 0xc0
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#define LCD_REMOTE_CNTL_SHL_REVERSE 0xc8
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#define LCD_REMOTE_CNTL_DISPLAY_ON_OFF 0xae
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#define LCD_REMOTE_CNTL_ENTIRE_ON_OFF 0xa4
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#define LCD_REMOTE_CNTL_REVERSE_ON_OFF 0xa6
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#define LCD_REMOTE_CNTL_NOP 0xe3
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#define LCD_REMOTE_CNTL_POWER_CONTROL 0x2b
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#define LCD_REMOTE_CNTL_SELECT_REGULATOR 0x20
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#define LCD_REMOTE_CNTL_SELECT_BIAS 0xa2
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#define LCD_REMOTE_CNTL_SELECT_VOLTAGE 0x81
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#define LCD_REMOTE_CNTL_INIT_LINE 0x40
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#define LCD_REMOTE_CNTL_SET_PAGE_ADDRESS 0xB0
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#define LCD_REMOTE_CNTL_HIGHCOL 0x10 /* Upper column address */
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#define LCD_REMOTE_CNTL_LOWCOL 0x00 /* Lower column address */
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#define CS_LO and_l(~0x00000004, &GPIO1_OUT)
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#define CS_HI or_l(0x00000004, &GPIO1_OUT)
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#define CLK_LO and_l(~0x10000000, &GPIO_OUT)
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#define CLK_HI or_l(0x10000000, &GPIO_OUT)
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#define DATA_LO and_l(~0x00040000, &GPIO1_OUT)
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#define DATA_HI or_l(0x00040000, &GPIO1_OUT)
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#define RS_LO and_l(~0x00010000, &GPIO_OUT)
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#define RS_HI or_l(0x00010000, &GPIO_OUT)
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#define SCROLLABLE_LINES 13
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/*** globals ***/
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unsigned char lcd_remote_framebuffer[LCD_REMOTE_HEIGHT/8][LCD_REMOTE_WIDTH]
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IBSS_ATTR;
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static int drawmode = DRMODE_SOLID;
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static int xmargin = 0;
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static int ymargin = 0;
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static int curfont = FONT_SYSFIXED;
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#ifndef SIMULATOR
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static int xoffset; /* needed for flip */
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/* timeout counter for deasserting /CS after access, <0 means not counting */
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static int cs_countdown IDATA_ATTR = 0;
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#define CS_TIMEOUT (HZ/10)
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#ifdef HAVE_REMOTE_LCD_TICKING
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/* If set to true, will prevent "ticking" to headphones. */
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static bool emireduce = false;
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static int byte_delay = 172;
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#endif
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/* remote hotplug */
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static struct event_queue remote_scroll_queue;
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#define REMOTE_INIT_LCD 1
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#define REMOTE_DEINIT_LCD 2
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static bool remote_initialized = false;
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static int _remote_type = 0;
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/* cached settings values */
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static bool cached_invert = false;
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static bool cached_flip = false;
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static int cached_contrast = 32;
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#endif
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/* scrolling */
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static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */
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static void scroll_thread(void);
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static long scroll_stack[DEFAULT_STACK_SIZE/sizeof(long)];
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static const char scroll_name[] = "remote_scroll";
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static int scroll_ticks = 12; /* # of ticks between updates*/
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static int scroll_delay = HZ/2; /* ticks delay before start */
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static int scroll_step = 6; /* pixels per scroll step */
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static int bidir_limit = 50; /* percent */
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static struct scrollinfo scroll[SCROLLABLE_LINES];
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static const char scroll_tick_table[16] = {
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/* Hz values:
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1, 1.25, 1.55, 2, 2.5, 3.12, 4, 5, 6.25, 8.33, 10, 12.5, 16.7, 20, 25, 33 */
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100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3
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};
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/*** driver routines ***/
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#ifndef SIMULATOR
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#ifdef HAVE_REMOTE_LCD_TICKING
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static inline void _byte_delay(void)
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{
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asm (
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"move.l %[dly],%%d0 \n"
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"1: \n"
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"subq.l #1,%%d0 \n"
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"bhi.s 1b \n"
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: /* outputs */
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: /* inputs */
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[dly]"d"(byte_delay)
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: /* clobbers */
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"d0"
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);
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}
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#endif /* HAVE_REMOTE_LCD_TICKING */
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/* Standard low-level byte writer */
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static inline void _write_byte(unsigned data)
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{
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asm volatile (
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"moveq.l #8,%%d1 \n" /* bit counter */
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"2: \n"
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"lsl.l #1,%[data] \n" /* data <<= 1, MSB of data set? */
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"bcc.s 1f \n"
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"or.l %[dhi],(%[gpi1]) \n" /* set data bit */
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".word 0x51fa \n" /* trapf.w - shadow next insn */
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"1: \n"
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"and.l %[dlo],(%[gpi1]) \n" /* reset data bit */
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"eor.l %[cbit],(%[gpio]) \n" /* set clock bit */
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"eor.l %[cbit],(%[gpio]) \n" /* reset clock bit */
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"subq.l #1,%%d1 \n"
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"bne.s 2b \n"
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"or.l %[dhi],(%[gpi1]) \n" /* set data bit */
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: /* outputs */
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: /* inputs */
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[data]"d"(data << 24),
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[gpio]"a"(&GPIO_OUT),
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[cbit]"d"(0x10000000),
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[gpi1]"a"(&GPIO1_OUT),
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[dhi] "d"(0x00040000),
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[dlo] "d"(~0x00040000)
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: /* clobbers */
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"d1"
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);
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}
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/* Unrolled fast low-level byte writer. Don't use with high CPU clock. */
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static inline void _write_unrolled(unsigned data)
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{
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asm volatile (
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"move.w %%sr,%%d4 \n" /* get current interrupt level */
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"move.w #0x2700,%%sr \n" /* disable interrupts */
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"move.l #0x00040000,%%d1\n" /* precalculate port values */
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"move.l %%d1,%%d0 \n" /* for setting and resetting */
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"or.l (%[gpi1]),%%d1 \n" /* the data bit */
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"eor.l %%d1,%%d0 \n"
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"move.l #0x10000000,%%d3\n" /* precalculate port values */
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"move.l %%d3,%%d2 \n" /* for setting and resetting */
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"or.l (%[gpio]),%%d3 \n" /* the clock bit */
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"eor.l %%d3,%%d2 \n"
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"lsl.l #1,%[data] \n" /* data <<= 1, MSB of data set? */
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n" /* set data bit */
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".word 0x51fa \n" /* trapf.w - shadow next insn */
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n" /* reset data bit */
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"move.l %%d3,(%[gpio]) \n" /* set clock bit */
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"move.l %%d2,(%[gpio]) \n" /* reset clock bit */
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"lsl.l #1,%[data] \n"
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"bcc.s 1f \n"
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"move.l %%d1,(%[gpi1]) \n"
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".word 0x51fa \n"
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"1: \n"
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"move.l %%d0,(%[gpi1]) \n"
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"move.l %%d3,(%[gpio]) \n"
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"move.l %%d2,(%[gpio]) \n"
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"move.l %%d1,(%[gpi1]) \n" /* set data bit */
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"move.w %%d4,%%sr \n" /* reenable interrupts */
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: /* outputs */
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: /* inputs */
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[data]"d"(data << 24),
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[gpio]"a"(&GPIO_OUT),
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[gpi1]"a"(&GPIO1_OUT)
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: /* clobbers */
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"d0", "d1", "d2", "d3", "d4"
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);
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}
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void lcd_remote_write_command(int cmd)
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{
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cs_countdown = 0;
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RS_LO;
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CS_LO;
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_write_byte(cmd);
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#ifdef HAVE_REMOTE_LCD_TICKING
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if (emireduce)
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_byte_delay();
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#endif
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cs_countdown = CS_TIMEOUT;
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}
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void lcd_remote_write_command_ex(int cmd, int data)
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{
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cs_countdown = 0;
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RS_LO;
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CS_LO;
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#ifdef HAVE_REMOTE_LCD_TICKING
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if (emireduce)
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{
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_write_byte(cmd);
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_byte_delay();
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_write_byte(data);
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_byte_delay();
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}
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else
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#endif
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{
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_write_byte(cmd);
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_write_byte(data);
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}
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cs_countdown = CS_TIMEOUT;
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}
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void lcd_remote_write_data(const unsigned char* p_bytes, int count) ICODE_ATTR;
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void lcd_remote_write_data(const unsigned char* p_bytes, int count)
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{
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const unsigned char *p_end = p_bytes + count;
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cs_countdown = 0;
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RS_HI;
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CS_LO;
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/* This is safe as long as lcd_remote_write_data() isn't called from within
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* an ISR. */
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if (cpu_frequency < 20000000)
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{
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while (p_bytes < p_end)
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_write_unrolled(*p_bytes++);
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}
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else
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{
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#ifdef HAVE_REMOTE_LCD_TICKING
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if (emireduce)
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while (p_bytes < p_end)
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{
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_write_byte(*p_bytes++);
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_byte_delay();
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}
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else
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#endif
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while (p_bytes < p_end)
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_write_byte(*p_bytes++);
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}
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cs_countdown = CS_TIMEOUT;
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}
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#endif /* !SIMULATOR */
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/*** hardware configuration ***/
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int lcd_remote_default_contrast(void)
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{
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return 32;
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}
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#ifndef SIMULATOR
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#ifdef HAVE_REMOTE_LCD_TICKING
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void lcd_remote_emireduce(bool state)
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{
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emireduce = state;
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}
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#endif
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void lcd_remote_powersave(bool on)
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{
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if (remote_initialized)
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{
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lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | (on ? 0 : 1));
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lcd_remote_write_command(LCD_REMOTE_CNTL_ENTIRE_ON_OFF | (on ? 1 : 0));
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}
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}
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void lcd_remote_set_contrast(int val)
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{
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cached_contrast = val;
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if (remote_initialized)
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lcd_remote_write_command_ex(LCD_REMOTE_CNTL_SELECT_VOLTAGE, val);
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}
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void lcd_remote_set_invert_display(bool yesno)
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{
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cached_invert = yesno;
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if (remote_initialized)
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lcd_remote_write_command(LCD_REMOTE_CNTL_REVERSE_ON_OFF | (yesno?1:0));
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}
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/* turn the display upside down (call lcd_remote_update() afterwards) */
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void lcd_remote_set_flip(bool yesno)
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{
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cached_flip = yesno;
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if (yesno)
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{
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xoffset = 0;
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if (remote_initialized)
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{
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lcd_remote_write_command(LCD_REMOTE_CNTL_ADC_NORMAL);
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lcd_remote_write_command(LCD_REMOTE_CNTL_SHL_NORMAL);
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}
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}
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else
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{
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xoffset = 132 - LCD_REMOTE_WIDTH;
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if (remote_initialized)
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{
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lcd_remote_write_command(LCD_REMOTE_CNTL_ADC_REVERSE);
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lcd_remote_write_command(LCD_REMOTE_CNTL_SHL_REVERSE);
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}
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}
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}
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/* The actual LCD init */
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static void remote_lcd_init(void)
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{
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CS_HI;
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lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_BIAS | 0x0);
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lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x5);
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sleep(1);
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lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x6);
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sleep(1);
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lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x7);
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lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_REGULATOR | 0x4); // 0x4 Select regulator @ 5.0 (default);
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sleep(1);
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lcd_remote_write_command(LCD_REMOTE_CNTL_INIT_LINE | 0x0); // init line
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lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | 0x0); // page address
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lcd_remote_write_command_ex(0x10, 0x00); // Column MSB + LSB
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lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | 1);
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remote_initialized = true;
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lcd_remote_set_flip(cached_flip);
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lcd_remote_set_contrast(cached_contrast);
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lcd_remote_set_invert_display(cached_invert);
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}
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int remote_type(void)
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{
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return _remote_type;
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}
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/* Monitor remote hotswap */
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static void remote_tick(void)
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{
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static bool last_status = false;
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static int countdown = 0;
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static int init_delay = 0;
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bool current_status;
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int val;
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int level;
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current_status = ((GPIO_READ & 0x40000000) == 0);
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/* Only report when the status has changed */
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if (current_status != last_status)
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{
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last_status = current_status;
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countdown = current_status ? 20*HZ : 1;
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}
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else
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{
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/* Count down until it gets negative */
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if (countdown >= 0)
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countdown--;
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if (current_status)
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{
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if (!(countdown % 8))
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{
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/* Determine which type of remote it is */
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level = set_irq_level(HIGHEST_IRQ_LEVEL);
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val = adc_scan(ADC_REMOTEDETECT);
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set_irq_level(level);
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if (val < ADCVAL_H100_LCD_REMOTE_HOLD)
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{
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if (val < ADCVAL_H100_LCD_REMOTE)
|
|
if (val < ADCVAL_H300_LCD_REMOTE)
|
|
_remote_type = REMOTETYPE_H300_LCD; /* hold off */
|
|
else
|
|
_remote_type = REMOTETYPE_H100_LCD; /* hold off */
|
|
else
|
|
if (val < ADCVAL_H300_LCD_REMOTE_HOLD)
|
|
_remote_type = REMOTETYPE_H300_LCD; /* hold on */
|
|
else
|
|
_remote_type = REMOTETYPE_H100_LCD; /* hold on */
|
|
|
|
if (--init_delay <= 0)
|
|
{
|
|
queue_post(&remote_scroll_queue, REMOTE_INIT_LCD, 0);
|
|
init_delay = 6;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_remote_type = REMOTETYPE_H300_NONLCD; /* hold on or off */
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (countdown == 0)
|
|
{
|
|
_remote_type = 0;
|
|
|
|
queue_post(&remote_scroll_queue, REMOTE_DEINIT_LCD, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* handle chip select timeout */
|
|
if (cs_countdown >= 0)
|
|
cs_countdown--;
|
|
if (cs_countdown == 0)
|
|
CS_HI;
|
|
}
|
|
#endif /* !SIMULATOR */
|
|
|
|
/* LCD init */
|
|
#ifdef SIMULATOR
|
|
|
|
void lcd_remote_init(void)
|
|
{
|
|
create_thread(scroll_thread, scroll_stack,
|
|
sizeof(scroll_stack), scroll_name);
|
|
}
|
|
#else /* !SIMULATOR */
|
|
|
|
/* Initialise ports and kick off monitor */
|
|
void lcd_remote_init(void)
|
|
{
|
|
#ifdef IRIVER_H300_SERIES
|
|
or_l(0x10010000, &GPIO_FUNCTION); /* GPIO16: RS
|
|
GPIO28: CLK */
|
|
|
|
or_l(0x00040006, &GPIO1_FUNCTION); /* GPO33: Backlight
|
|
GPIO34: CS
|
|
GPIO50: Data */
|
|
or_l(0x10010000, &GPIO_ENABLE);
|
|
or_l(0x00040006, &GPIO1_ENABLE);
|
|
#else
|
|
or_l(0x10010800, &GPIO_FUNCTION); /* GPIO11: Backlight
|
|
GPIO16: RS
|
|
GPIO28: CLK */
|
|
|
|
or_l(0x00040004, &GPIO1_FUNCTION); /* GPIO34: CS
|
|
GPIO50: Data */
|
|
or_l(0x10010800, &GPIO_ENABLE);
|
|
or_l(0x00040004, &GPIO1_ENABLE);
|
|
#endif
|
|
lcd_remote_clear_display();
|
|
|
|
queue_clear(&remote_scroll_queue); /* no queue_init() -- private queue */
|
|
tick_add_task(remote_tick);
|
|
create_thread(scroll_thread, scroll_stack,
|
|
sizeof(scroll_stack), scroll_name);
|
|
}
|
|
|
|
/*** update functions ***/
|
|
|
|
/* Update the display.
|
|
This must be called after all other LCD functions that change the display. */
|
|
void lcd_remote_update(void) ICODE_ATTR;
|
|
void lcd_remote_update(void)
|
|
{
|
|
int y;
|
|
|
|
if (!remote_initialized)
|
|
return;
|
|
|
|
#ifdef HAVE_REMOTE_LCD_TICKING
|
|
/* adjust byte delay for emi reduction */
|
|
byte_delay = (cpu_frequency >> 18) - 30;
|
|
#endif
|
|
|
|
/* Copy display bitmap to hardware */
|
|
for (y = 0; y < LCD_REMOTE_HEIGHT/8; y++)
|
|
{
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y);
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_HIGHCOL | ((xoffset >> 4) & 0xf));
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_LOWCOL | (xoffset & 0xf));
|
|
lcd_remote_write_data(lcd_remote_framebuffer[y], LCD_REMOTE_WIDTH);
|
|
}
|
|
}
|
|
|
|
/* Update a fraction of the display. */
|
|
void lcd_remote_update_rect(int, int, int, int) ICODE_ATTR;
|
|
void lcd_remote_update_rect(int x, int y, int width, int height)
|
|
{
|
|
int ymax;
|
|
|
|
if (!remote_initialized)
|
|
return;
|
|
|
|
/* The Y coordinates have to work on even 8 pixel rows */
|
|
ymax = (y + height-1) >> 3;
|
|
y >>= 3;
|
|
|
|
if(x + width > LCD_REMOTE_WIDTH)
|
|
width = LCD_REMOTE_WIDTH - x;
|
|
if (width <= 0)
|
|
return; /* nothing left to do, 0 is harmful to lcd_write_data() */
|
|
if(ymax >= LCD_REMOTE_HEIGHT/8)
|
|
ymax = LCD_REMOTE_HEIGHT/8-1;
|
|
|
|
#ifdef HAVE_REMOTE_LCD_TICKING
|
|
/* adjust byte delay for emi reduction */
|
|
byte_delay = (cpu_frequency >> 18) - 30;
|
|
#endif
|
|
|
|
/* Copy specified rectange bitmap to hardware */
|
|
for (; y <= ymax; y++)
|
|
{
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y);
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_HIGHCOL | (((x+xoffset) >> 4) & 0xf));
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_LOWCOL | ((x+xoffset) & 0xf));
|
|
lcd_remote_write_data(&lcd_remote_framebuffer[y][x], width);
|
|
}
|
|
}
|
|
#endif /* !SIMULATOR */
|
|
|
|
/*** parameter handling ***/
|
|
|
|
void lcd_remote_set_drawmode(int mode)
|
|
{
|
|
drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
|
|
}
|
|
|
|
int lcd_remote_get_drawmode(void)
|
|
{
|
|
return drawmode;
|
|
}
|
|
|
|
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)
|
|
{
|
|
lcd_remote_framebuffer[y>>3][x] |= 1 << (y & 7);
|
|
}
|
|
|
|
static void clearpixel(int x, int y)
|
|
{
|
|
lcd_remote_framebuffer[y>>3][x] &= ~(1 << (y & 7));
|
|
}
|
|
|
|
static void flippixel(int x, int y)
|
|
{
|
|
lcd_remote_framebuffer[y>>3][x] ^= 1 << (y & 7);
|
|
}
|
|
|
|
static void nopixel(int x, int y)
|
|
{
|
|
(void)x;
|
|
(void)y;
|
|
}
|
|
|
|
lcd_pixelfunc_type* const lcd_remote_pixelfuncs[8] = {
|
|
flippixel, nopixel, setpixel, setpixel,
|
|
nopixel, clearpixel, nopixel, clearpixel
|
|
};
|
|
|
|
static void flipblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void flipblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address ^= bits & mask;
|
|
}
|
|
|
|
static void bgblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void bgblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address &= bits | ~mask;
|
|
}
|
|
|
|
static void fgblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void fgblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address |= bits & mask;
|
|
}
|
|
|
|
static void solidblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void solidblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address = (*address & ~mask) | (bits & mask);
|
|
}
|
|
|
|
static void flipinvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void flipinvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address ^= ~bits & mask;
|
|
}
|
|
|
|
static void bginvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void bginvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address &= ~(bits & mask);
|
|
}
|
|
|
|
static void fginvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void fginvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address |= ~bits & mask;
|
|
}
|
|
|
|
static void solidinvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
ICODE_ATTR;
|
|
static void solidinvblock(unsigned char *address, unsigned mask, unsigned bits)
|
|
{
|
|
*address = (*address & ~mask) | (~bits & mask);
|
|
}
|
|
|
|
lcd_blockfunc_type* const lcd_remote_blockfuncs[8] = {
|
|
flipblock, bgblock, fgblock, solidblock,
|
|
flipinvblock, bginvblock, fginvblock, solidinvblock
|
|
};
|
|
|
|
/*** drawing functions ***/
|
|
|
|
/* Clear the whole display */
|
|
void lcd_remote_clear_display(void)
|
|
{
|
|
unsigned bits = (drawmode & DRMODE_INVERSEVID) ? 0xFFu : 0;
|
|
|
|
memset(lcd_remote_framebuffer, bits, 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_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;
|
|
unsigned char *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 >= 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 = 1 << (y & 7);
|
|
|
|
dst_end = dst + x2 - x1;
|
|
do
|
|
bfunc(dst++, mask, 0xFFu);
|
|
while (dst <= dst_end);
|
|
}
|
|
|
|
/* Draw a vertical line (optimised) */
|
|
void lcd_remote_vline(int x, int y1, int y2)
|
|
{
|
|
int ny;
|
|
unsigned char *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 >= 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);
|
|
mask_bottom = 0xFFu >> (~ny & 7);
|
|
|
|
for (; ny >= 8; ny -= 8)
|
|
{
|
|
bfunc(dst, mask, 0xFFu);
|
|
dst += LCD_REMOTE_WIDTH;
|
|
mask = 0xFFu;
|
|
}
|
|
mask &= mask_bottom;
|
|
bfunc(dst, mask, 0xFFu);
|
|
}
|
|
|
|
/* 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;
|
|
unsigned char *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 >= 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)
|
|
{
|
|
fillopt = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (drawmode & DRMODE_FG)
|
|
{
|
|
fillopt = true;
|
|
bits = 0xFFu;
|
|
}
|
|
}
|
|
bfunc = lcd_remote_blockfuncs[drawmode];
|
|
dst = &lcd_remote_framebuffer[y>>3][x];
|
|
ny = height - 1 + (y & 7);
|
|
mask = 0xFFu << (y & 7);
|
|
mask_bottom = 0xFFu >> (~ny & 7);
|
|
|
|
for (; ny >= 8; ny -= 8)
|
|
{
|
|
if (fillopt && (mask == 0xFFu))
|
|
memset(dst, bits, width);
|
|
else
|
|
{
|
|
unsigned char *dst_row = dst;
|
|
|
|
dst_end = dst_row + width;
|
|
do
|
|
bfunc(dst_row++, mask, 0xFFu);
|
|
while (dst_row < dst_end);
|
|
}
|
|
|
|
dst += LCD_REMOTE_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 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 same as the internal lcd hw format. */
|
|
|
|
/* Draw a partial bitmap */
|
|
void lcd_remote_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_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;
|
|
unsigned char *dst, *dst_end;
|
|
unsigned mask, mask_bottom;
|
|
lcd_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);
|
|
mask_bottom = 0xFFu >> (~ny & 7);
|
|
|
|
if (shift == 0)
|
|
{
|
|
bool copyopt = (drawmode == DRMODE_SOLID);
|
|
|
|
for (; ny >= 8; ny -= 8)
|
|
{
|
|
if (copyopt && (mask == 0xFFu))
|
|
memcpy(dst, src, width);
|
|
else
|
|
{
|
|
const unsigned char *src_row = src;
|
|
unsigned char *dst_row = dst;
|
|
|
|
dst_end = dst_row + width;
|
|
do
|
|
bfunc(dst_row++, mask, *src_row++);
|
|
while (dst_row < dst_end);
|
|
}
|
|
|
|
src += stride;
|
|
dst += LCD_REMOTE_WIDTH;
|
|
mask = 0xFFu;
|
|
}
|
|
mask &= mask_bottom;
|
|
|
|
if (copyopt && (mask == 0xFFu))
|
|
memcpy(dst, src, width);
|
|
else
|
|
{
|
|
dst_end = dst + width;
|
|
do
|
|
bfunc(dst++, mask, *src++);
|
|
while (dst < dst_end);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dst_end = dst + width;
|
|
do
|
|
{
|
|
const unsigned char *src_col = src++;
|
|
unsigned char *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)
|
|
{
|
|
bfunc(dst_col, mask_col, data);
|
|
mask_col = 0xFFu;
|
|
}
|
|
else
|
|
mask_col >>= 8;
|
|
|
|
src_col += stride;
|
|
dst_col += LCD_REMOTE_WIDTH;
|
|
data >>= 8;
|
|
}
|
|
data |= *src_col << shift;
|
|
bfunc(dst_col, mask_col & mask_bottom, data);
|
|
}
|
|
while (dst < dst_end);
|
|
}
|
|
}
|
|
|
|
/* Draw a full bitmap */
|
|
void lcd_remote_bitmap(const unsigned char *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_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 = x;
|
|
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;
|
|
long next_tick = current_tick;
|
|
long delay = 0;
|
|
int index;
|
|
int xpos, ypos;
|
|
int lastmode;
|
|
#ifndef SIMULATOR
|
|
struct event ev;
|
|
#endif
|
|
|
|
/* initialize scroll struct array */
|
|
scrolling_lines = 0;
|
|
|
|
while ( 1 ) {
|
|
|
|
#ifdef SIMULATOR
|
|
sleep(delay);
|
|
#else
|
|
queue_wait_w_tmo(&remote_scroll_queue, &ev, delay);
|
|
switch (ev.id)
|
|
{
|
|
case REMOTE_INIT_LCD:
|
|
remote_lcd_init();
|
|
lcd_remote_update();
|
|
break;
|
|
|
|
case REMOTE_DEINIT_LCD:
|
|
CLK_LO;
|
|
CS_HI;
|
|
remote_initialized = false;
|
|
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 = xmargin + s->startx * s->width / s->len;
|
|
ypos = ymargin + index * pf->height;
|
|
|
|
if (s->bidir) { /* scroll bidirectional */
|
|
if (s->offset <= 0) {
|
|
/* at beginning of line */
|
|
s->offset = 0;
|
|
s->backward = false;
|
|
s->start_tick = current_tick + scroll_delay * 2;
|
|
}
|
|
if (s->offset >= s->width - (LCD_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;
|
|
}
|
|
}
|
|
}
|
|
|