23797afb0b
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6625 a1c6a512-1295-4272-9138-f99709370657
1053 lines
25 KiB
C
1053 lines
25 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-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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/* All zeros and ones bitmaps for area filling */
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static const unsigned char zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
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static const unsigned char ones[8] = {
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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static int curfont = FONT_SYSFIXED;
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static int xmargin = 0;
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static int ymargin = 0;
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unsigned char lcd_remote_framebuffer[LCD_REMOTE_HEIGHT/8][LCD_REMOTE_WIDTH]
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#ifndef SIMULATOR
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__attribute__ ((section(".idata")))
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#endif
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;
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#define SCROLL_SPACING 3
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#define SCROLLABLE_LINES 26
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struct scrollinfo {
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char line[MAX_PATH + LCD_REMOTE_WIDTH/2 + SCROLL_SPACING + 2];
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int len; /* length of line in chars */
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int width; /* length of line in pixels */
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int offset;
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int startx;
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bool backward; /* scroll presently forward or backward? */
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bool bidir;
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bool invert; /* invert the scrolled text */
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long start_tick;
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};
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static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */
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#ifndef SIMULATOR
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static int countdown; /* for remote plugging debounce */
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static bool last_remote_status = false;
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static bool init_remote = false; /* scroll thread should init lcd */
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static bool remote_initialized = false;
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/* cached settings values, for hotplug init */
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static bool cached_invert = false;
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static int cached_contrast = 32;
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static int cached_roll = 0;
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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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#endif
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static const char scroll_name[] = "remote_scroll";
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static char 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 char 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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#define CS_LO GPIO1_OUT &= ~0x00000004
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#define CS_HI GPIO1_OUT |= 0x00000004
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#define CLK_LO GPIO_OUT &= ~0x10000000
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#define CLK_HI GPIO_OUT |= 0x10000000
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#define DATA_LO GPIO1_OUT &= ~0x00040000
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#define DATA_HI GPIO1_OUT |= 0x00040000
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#define RS_LO GPIO_OUT &= ~0x00010000
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#define RS_HI GPIO_OUT |= 0x00010000
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/* delay loop */
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#define DELAY do { int _x; for(_x=0;_x<3;_x++);} while (0)
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#ifndef SIMULATOR
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void lcd_remote_backlight_on(void)
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{
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GPIO_OUT &= ~0x00000800;
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}
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void lcd_remote_backlight_off(void)
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{
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GPIO_OUT |= 0x00000800;
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}
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void lcd_remote_write_command(int cmd)
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{
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int i;
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CS_LO;
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RS_LO;
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for (i = 0; i < 8; i++)
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{
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if (cmd & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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cmd <<= 1;
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DELAY;
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CLK_LO;
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}
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CS_HI;
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}
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void lcd_remote_write_data(const unsigned char* p_bytes, int count)
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{
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int i, j;
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int data;
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CS_LO;
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RS_HI;
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for (i = 0; i < count; i++)
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{
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data = p_bytes[i];
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for (j = 0; j < 8; j++)
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{
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if (data & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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data <<= 1;
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DELAY;
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CLK_LO;
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}
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}
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CS_HI;
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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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int i;
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CS_LO;
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RS_LO;
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for (i = 0; i < 8; i++)
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{
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if (cmd & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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cmd <<= 1;
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DELAY;
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CLK_LO;
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}
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for (i = 0; i < 8; i++)
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{
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if (data & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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data <<= 1;
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DELAY;
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CLK_LO;
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}
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CS_HI;
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}
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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_CTNL_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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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);
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}
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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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#endif
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void lcd_remote_bitmap(const unsigned char *src, int x, int y, int nx, int ny, bool clear) __attribute__ ((section (".icode")));
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void lcd_remote_bitmap(const unsigned char *src, int x, int y, int nx, int ny, bool clear)
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{
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const unsigned char *src_col;
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unsigned char *dst, *dst_col;
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unsigned int data, mask1, mask2, mask3, mask4;
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int stride, shift;
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if (((unsigned) x >= LCD_REMOTE_WIDTH) || ((unsigned) y >= LCD_REMOTE_HEIGHT))
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{
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return;
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}
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stride = nx; /* otherwise right-clipping will destroy the image */
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if (((unsigned) (x + nx)) >= LCD_REMOTE_WIDTH)
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{
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nx = LCD_REMOTE_WIDTH - x;
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}
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if (((unsigned) (y + ny)) >= LCD_REMOTE_HEIGHT)
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{
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ny = LCD_REMOTE_HEIGHT - y;
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}
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dst = &lcd_remote_framebuffer[y >> 3][x];
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shift = y & 7;
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if (!shift && clear) /* shortcut for byte aligned match with clear */
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{
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while (ny >= 8) /* all full rows */
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{
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memcpy(dst, src, nx);
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src += stride;
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dst += LCD_REMOTE_WIDTH;
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ny -= 8;
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}
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if (ny == 0) /* nothing left to do? */
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{
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return;
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}
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/* last partial row to do by default routine */
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}
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ny += shift;
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/* Calculate bit masks */
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mask4 = ~(0xfe << ((ny-1) & 7)); /* data mask for last partial row */
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if (clear)
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{
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mask1 = ~(0xff << shift); /* clearing of first partial row */
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mask2 = 0; /* clearing of intermediate (full) rows */
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mask3 = ~mask4; /* clearing of last partial row */
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if (ny <= 8)
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{
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mask3 |= mask1;
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}
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}
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else
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{
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mask1 = mask2 = mask3 = 0xff;
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}
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/* Loop for each column */
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for (x = 0; x < nx; x++)
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{
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src_col = src++;
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dst_col = dst++;
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data = 0;
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y = 0;
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if (ny > 8)
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{
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/* First partial row */
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data = *src_col << shift;
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*dst_col = (*dst_col & mask1) | data;
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src_col += stride;
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dst_col += LCD_REMOTE_WIDTH;
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data >>= 8;
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/* Intermediate rows */
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for (y = 8; y < ny-8; y += 8)
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{
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data |= *src_col << shift;
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*dst_col = (*dst_col & mask2) | data;
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src_col += stride;
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dst_col += LCD_REMOTE_WIDTH;
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data >>= 8;
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}
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}
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/* Last partial row */
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if (y + shift < ny)
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{
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data |= *src_col << shift;
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}
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*dst_col = (*dst_col & mask3) | (data & mask4);
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}
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}
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void lcd_remote_drawrect(int x, int y, int nx, int ny)
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{
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int i;
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if (x > LCD_REMOTE_WIDTH)
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{
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return;
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}
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if (y > LCD_REMOTE_HEIGHT)
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{
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return;
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}
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if (x + nx > LCD_REMOTE_WIDTH)
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{
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nx = LCD_REMOTE_WIDTH - x;
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}
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if (y + ny > LCD_REMOTE_HEIGHT)
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{
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ny = LCD_REMOTE_HEIGHT - y;
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}
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/* vertical lines */
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for (i = 0; i < ny; i++)
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{
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REMOTE_DRAW_PIXEL(x, (y + i));
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REMOTE_DRAW_PIXEL((x + nx - 1), (y + i));
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}
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/* horizontal lines */
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for (i = 0; i < nx; i++)
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{
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REMOTE_DRAW_PIXEL((x + i),y);
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REMOTE_DRAW_PIXEL((x + i),(y + ny - 1));
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}
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}
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void lcd_remote_clear_display(void)
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{
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memset(lcd_remote_framebuffer, 0, sizeof lcd_remote_framebuffer);
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}
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#ifndef SIMULATOR
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static void remote_lcd_init(void)
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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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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_contrast(cached_contrast);
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lcd_remote_set_invert_display(cached_invert);
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lcd_remote_roll(cached_roll);
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}
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static void remote_tick(void)
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{
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bool current_status;
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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_remote_status)
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{
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last_remote_status = current_status;
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countdown = current_status ? 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 (countdown == 0)
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{
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if (current_status)
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{
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init_remote = true;
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/* request init in scroll_thread */
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}
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else
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{
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CLK_LO;
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CS_HI;
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remote_initialized = false;
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}
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}
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}
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}
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void lcd_remote_init(void)
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{
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GPIO_FUNCTION |= 0x10010800; /* GPIO11: Backlight
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GPIO16: RS
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GPIO28: CLK */
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GPIO1_FUNCTION |= 0x00040004; /* GPIO34: CS
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GPIO50: Data */
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GPIO_ENABLE |= 0x10010800;
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GPIO1_ENABLE |= 0x00040004;
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lcd_remote_clear_display();
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tick_add_task(remote_tick);
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create_thread(scroll_thread, scroll_stack,
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sizeof(scroll_stack), scroll_name);
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}
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/*
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* Update the display.
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* This must be called after all other LCD functions that change the display.
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*/
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void lcd_remote_update (void) __attribute__ ((section (".icode")));
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void lcd_remote_update (void)
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{
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int y;
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if (!remote_initialized)
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return;
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/* Copy display bitmap to hardware */
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for (y = 0; y < LCD_REMOTE_HEIGHT / 8; y++)
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{
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lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y);
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lcd_remote_write_command_ex(0x10, 0x04);
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lcd_remote_write_data(lcd_remote_framebuffer[y], LCD_REMOTE_WIDTH);
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}
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}
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/*
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* Update a fraction of the display.
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*/
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void lcd_remote_update_rect (int, int, int, int) __attribute__ ((section (".icode")));
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void lcd_remote_update_rect (int x_start, int y,
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int width, int height)
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{
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int ymax;
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if (!remote_initialized)
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return;
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/* The Y coordinates have to work on even 8 pixel rows */
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ymax = (y + height-1)/8;
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y /= 8;
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if(x_start + width > LCD_REMOTE_WIDTH)
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width = LCD_REMOTE_WIDTH - x_start;
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if (width <= 0)
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return; /* nothing left to do, 0 is harmful to lcd_write_data() */
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if(ymax >= LCD_REMOTE_HEIGHT/8)
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ymax = LCD_REMOTE_HEIGHT/8-1;
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/* Copy specified rectange bitmap to hardware */
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for (; y <= ymax; y++)
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{
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lcd_remote_write_command(LCD_REMOTE_CNTL_SET_PAGE_ADDRESS | y);
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lcd_remote_write_command_ex(0x10, 0x00);
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lcd_remote_write_data(&lcd_remote_framebuffer[y][x_start], width);
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}
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}
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/**
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* Rolls up the lcd display by the specified amount of lines.
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* Lines that are rolled out over the top of the screen are
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* rolled in from the bottom again. This is a hardware
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* remapping only and all operations on the lcd are affected.
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* ->
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* @param int lines - The number of lines that are rolled.
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* The value must be 0 <= pixels < LCD_REMOTE_HEIGHT.
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*/
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void lcd_remote_roll(int lines)
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{
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char data[2];
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|
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cached_roll = lines;
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if (remote_initialized)
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{
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lines &= LCD_REMOTE_HEIGHT-1;
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data[0] = lines & 0xff;
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data[1] = lines >> 8;
|
|
|
|
lcd_remote_write_command(LCD_REMOTE_CNTL_INIT_LINE | 0x0); // init line
|
|
lcd_remote_write_data(data, 2);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
/* put a string at a given char position */
|
|
void lcd_remote_puts(int x, int y, const unsigned char *str)
|
|
{
|
|
lcd_remote_puts_style(x, y, str, STYLE_DEFAULT);
|
|
}
|
|
|
|
void lcd_remote_puts_style(int x, int y, const unsigned char *str, int style)
|
|
{
|
|
int xpos,ypos,w,h;
|
|
|
|
/* 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 / strlen(str);
|
|
ypos = ymargin + y*h;
|
|
lcd_remote_putsxy(xpos, ypos, str);
|
|
lcd_remote_clearrect(xpos + w, ypos, LCD_REMOTE_WIDTH - (xpos + w), h);
|
|
if (style & STYLE_INVERT)
|
|
lcd_remote_invertrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, h);
|
|
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
int ch;
|
|
struct font* pf = font_get(curfont);
|
|
|
|
while ((ch = *str++) != '\0' && x < LCD_REMOTE_WIDTH)
|
|
{
|
|
int gwidth, width;
|
|
|
|
/* check input range */
|
|
if (ch < pf->firstchar || ch >= pf->firstchar+pf->size)
|
|
ch = pf->defaultchar;
|
|
ch -= pf->firstchar;
|
|
|
|
/* get proportional width and glyph bits */
|
|
gwidth = pf->width ? pf->width[ch] : pf->maxwidth;
|
|
width = MIN (gwidth, LCD_REMOTE_WIDTH - x);
|
|
|
|
if (ofs != 0)
|
|
{
|
|
if (ofs > width)
|
|
{
|
|
ofs -= width;
|
|
continue;
|
|
}
|
|
width -= ofs;
|
|
}
|
|
|
|
if (width > 0)
|
|
{
|
|
unsigned int i;
|
|
const unsigned char* bits = pf->bits +
|
|
(pf->offset ? pf->offset[ch]
|
|
: ((pf->height + 7) / 8 * pf->maxwidth * ch));
|
|
|
|
if (ofs != 0)
|
|
{
|
|
for (i = 0; i < pf->height; i += 8)
|
|
{
|
|
lcd_remote_bitmap (bits + ofs, x, y + i, width,
|
|
MIN(8, pf->height - i), true);
|
|
bits += gwidth;
|
|
}
|
|
}
|
|
else
|
|
lcd_remote_bitmap ((unsigned char*) bits, x, y, gwidth,
|
|
pf->height, true);
|
|
x += width;
|
|
}
|
|
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);
|
|
}
|
|
|
|
|
|
/*
|
|
* Clear a rectangular area at (x, y), size (nx, ny)
|
|
*/
|
|
void lcd_remote_clearrect (int x, int y, int nx, int ny)
|
|
{
|
|
int i;
|
|
for (i = 0; i < nx; i++)
|
|
lcd_remote_bitmap (zeros, x+i, y, 1, ny, true);
|
|
}
|
|
|
|
/*
|
|
* Fill a rectangular area at (x, y), size (nx, ny)
|
|
*/
|
|
void lcd_remote_fillrect (int x, int y, int nx, int ny)
|
|
{
|
|
int i;
|
|
for (i = 0; i < nx; i++)
|
|
lcd_remote_bitmap (ones, x+i, y, 1, ny, true);
|
|
}
|
|
|
|
/* Invert a rectangular area at (x, y), size (nx, ny) */
|
|
void lcd_remote_invertrect (int x, int y, int nx, int ny)
|
|
{
|
|
int i, j;
|
|
|
|
if (x > LCD_REMOTE_WIDTH)
|
|
return;
|
|
if (y > LCD_REMOTE_HEIGHT)
|
|
return;
|
|
|
|
if (x + nx > LCD_REMOTE_WIDTH)
|
|
nx = LCD_REMOTE_WIDTH - x;
|
|
if (y + ny > LCD_REMOTE_HEIGHT)
|
|
ny = LCD_REMOTE_HEIGHT - y;
|
|
|
|
for (i = 0; i < nx; i++)
|
|
for (j = 0; j < ny; j++)
|
|
REMOTE_INVERT_PIXEL((x + i), (y + j));
|
|
}
|
|
|
|
/* 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_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;
|
|
|
|
deltax = abs(x2 - x1);
|
|
deltay = abs(y2 - y1);
|
|
|
|
if(deltax >= deltay)
|
|
{
|
|
numpixels = deltax;
|
|
d = 2 * deltay - deltax;
|
|
dinc1 = deltay * 2;
|
|
dinc2 = (deltay - deltax) * 2;
|
|
xinc1 = 1;
|
|
xinc2 = 1;
|
|
yinc1 = 0;
|
|
yinc2 = 1;
|
|
}
|
|
else
|
|
{
|
|
numpixels = deltay;
|
|
d = 2 * deltax - deltay;
|
|
dinc1 = deltax * 2;
|
|
dinc2 = (deltax - deltay) * 2;
|
|
xinc1 = 0;
|
|
xinc2 = 1;
|
|
yinc1 = 1;
|
|
yinc2 = 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++)
|
|
{
|
|
REMOTE_DRAW_PIXEL(x,y);
|
|
|
|
if(d < 0)
|
|
{
|
|
d += dinc1;
|
|
x += xinc1;
|
|
y += yinc1;
|
|
}
|
|
else
|
|
{
|
|
d += dinc2;
|
|
x += xinc2;
|
|
y += yinc2;
|
|
}
|
|
}
|
|
}
|
|
|
|
void lcd_remote_clearline( 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;
|
|
|
|
deltax = abs(x2 - x1);
|
|
deltay = abs(y2 - y1);
|
|
|
|
if(deltax >= deltay)
|
|
{
|
|
numpixels = deltax;
|
|
d = 2 * deltay - deltax;
|
|
dinc1 = deltay * 2;
|
|
dinc2 = (deltay - deltax) * 2;
|
|
xinc1 = 1;
|
|
xinc2 = 1;
|
|
yinc1 = 0;
|
|
yinc2 = 1;
|
|
}
|
|
else
|
|
{
|
|
numpixels = deltay;
|
|
d = 2 * deltax - deltay;
|
|
dinc1 = deltax * 2;
|
|
dinc2 = (deltax - deltay) * 2;
|
|
xinc1 = 0;
|
|
xinc2 = 1;
|
|
yinc1 = 1;
|
|
yinc2 = 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++)
|
|
{
|
|
REMOTE_CLEAR_PIXEL(x,y);
|
|
|
|
if(d < 0)
|
|
{
|
|
d += dinc1;
|
|
x += xinc1;
|
|
y += yinc1;
|
|
}
|
|
else
|
|
{
|
|
d += dinc2;
|
|
x += xinc2;
|
|
y += yinc2;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set a single pixel
|
|
*/
|
|
void lcd_remote_drawpixel(int x, int y)
|
|
{
|
|
REMOTE_DRAW_PIXEL(x,y);
|
|
}
|
|
|
|
/*
|
|
* Clear a single pixel
|
|
*/
|
|
void lcd_remote_clearpixel(int x, int y)
|
|
{
|
|
REMOTE_CLEAR_PIXEL(x,y);
|
|
}
|
|
|
|
/*
|
|
* Invert a single pixel
|
|
*/
|
|
void lcd_remote_invertpixel(int x, int y)
|
|
{
|
|
REMOTE_INVERT_PIXEL(x,y);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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(x,y,string,STYLE_INVERT);
|
|
}
|
|
else
|
|
lcd_remote_puts(x,y,string);
|
|
|
|
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, string);
|
|
|
|
/* get width */
|
|
s->width = lcd_remote_getstringsize(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(s->line, &w, &h);
|
|
}
|
|
|
|
end = strchr(s->line, '\0');
|
|
strncpy(end, string, LCD_REMOTE_WIDTH/2);
|
|
|
|
s->len = strlen(string);
|
|
s->offset = 0;
|
|
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);
|
|
}
|
|
|
|
void lcd_remote_stop_scroll(void)
|
|
{
|
|
scrolling_lines=0;
|
|
}
|
|
|
|
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
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
#ifndef SIMULATOR
|
|
static void scroll_thread(void)
|
|
{
|
|
struct font* pf;
|
|
struct scrollinfo* s;
|
|
int index;
|
|
int xpos, ypos;
|
|
|
|
/* initialize scroll struct array */
|
|
scrolling_lines = 0;
|
|
|
|
while ( 1 ) {
|
|
|
|
if (init_remote) /* request to initialize the remote lcd */
|
|
{
|
|
init_remote = false; /* clear request */
|
|
remote_lcd_init();
|
|
lcd_remote_update();
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
lcd_remote_clearrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height);
|
|
lcd_remote_putsxyofs(xpos, ypos, s->offset, s->line);
|
|
if (s->invert)
|
|
lcd_remote_invertrect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height);
|
|
lcd_remote_update_rect(xpos, ypos, LCD_REMOTE_WIDTH - xpos, pf->height);
|
|
}
|
|
|
|
sleep(scroll_ticks);
|
|
}
|
|
}
|
|
#endif /* SIMULATOR */
|
|
|