Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
rockbox/firmware/drivers/lcd-recorder.c
Jens Arnold 71bc504e5f The const police strikes and hits itself. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7772 a1c6a512-1295-4272-9138-f99709370657
2005-11-06 23:49:29 +00:00

1090 lines
28 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include <string.h>
#include <stdlib.h>
#include "file.h"
#include "debug.h"
#include "system.h"
#include "font.h"
#include "hwcompat.h"
#include "bidi.h"
/*** definitions ***/
#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00)
#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10)
#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20)
#define LCD_SET_POWER_CONTROL_REGISTER ((char)0x28)
#define LCD_SET_DISPLAY_START_LINE ((char)0x40)
#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81)
#define LCD_SET_SEGMENT_REMAP ((char)0xA0)
#define LCD_SET_LCD_BIAS ((char)0xA2)
#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4)
#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5)
#define LCD_SET_NORMAL_DISPLAY ((char)0xA6)
#define LCD_SET_REVERSE_DISPLAY ((char)0xA7)
#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8)
#define LCD_SET_BIAS_TC_OSC ((char)0xA9)
#define LCD_SET_1OVER4_BIAS_RATIO ((char)0xAA)
#define LCD_SET_INDICATOR_OFF ((char)0xAC)
#define LCD_SET_INDICATOR_ON ((char)0xAD)
#define LCD_SET_DISPLAY_OFF ((char)0xAE)
#define LCD_SET_DISPLAY_ON ((char)0xAF)
#define LCD_SET_PAGE_ADDRESS ((char)0xB0)
#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0)
#define LCD_SET_TOTAL_FRAME_PHASES ((char)0xD2)
#define LCD_SET_DISPLAY_OFFSET ((char)0xD3)
#define LCD_SET_READ_MODIFY_WRITE_MODE ((char)0xE0)
#define LCD_SOFTWARE_RESET ((char)0xE2)
#define LCD_NOP ((char)0xE3)
#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE ((char)0xEE)
/* LCD command codes */
#define LCD_CNTL_RESET 0xe2 /* Software reset */
#define LCD_CNTL_POWER 0x2f /* Power control */
#define LCD_CNTL_CONTRAST 0x81 /* Contrast */
#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */
#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */
#define LCD_CNTL_DISPON 0xaf /* Display on */
#define LCD_CNTL_PAGE 0xb0 /* Page address */
#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */
#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */
#define SCROLLABLE_LINES 13
/*** globals ***/
unsigned char lcd_framebuffer[LCD_HEIGHT/8][LCD_WIDTH];
static int drawmode = DRMODE_SOLID;
static int xmargin = 0;
static int ymargin = 0;
static int curfont = FONT_SYSFIXED;
#ifndef SIMULATOR
static int xoffset; /* needed for flip */
#endif
/* scrolling */
static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */
static void scroll_thread(void);
static char scroll_stack[DEFAULT_STACK_SIZE];
static const char scroll_name[] = "scroll";
static int scroll_ticks = 12; /* # of ticks between updates*/
static int scroll_delay = HZ/2; /* ticks delay before start */
static int scroll_step = 6; /* pixels per scroll step */
static int bidir_limit = 50; /* percent */
static struct scrollinfo scroll[SCROLLABLE_LINES];
static const char scroll_tick_table[16] = {
/* Hz values:
1, 1.25, 1.55, 2, 2.5, 3.12, 4, 5, 6.25, 8.33, 10, 12.5, 16.7, 20, 25, 33 */
100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3
};
/*** driver routines ***/
/* optimised archos recorder code is in lcd.S */
#if CONFIG_CPU == TCC730
/* Optimization opportunity:
In the following I do exactly as in the archos firmware.
There is probably a better way (ie. do only one mask operation)
*/
void lcd_write_command(int cmd) {
P2 &= 0xF7;
P2 &= 0xDF;
P2 &= 0xFB;
P0 = cmd;
P2 |= 0x04;
P2 |= 0x08;
P2 |= 0x20;
}
void lcd_write_data( const unsigned char* data, int count ) {
int i;
for (i=0; i < count; i++) {
P2 |= 0x08;
P2 &= 0xDF;
P2 &= 0xFB;
P0 = data[i];
P2 |= 0x04;
P2 |= 0x08;
P2 |= 0x20;
}
}
#endif
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
#ifdef SIMULATOR
return 30;
#elif CONFIG_LCD == LCD_GMINI100
return 31;
#else
return (read_hw_mask() & LCD_CONTRAST_BIAS) ? 31 : 49;
#endif
}
#ifndef SIMULATOR
void lcd_set_contrast(int val)
{
lcd_write_command(LCD_CNTL_CONTRAST);
lcd_write_command(val);
}
void lcd_set_invert_display(bool yesno)
{
if (yesno)
lcd_write_command(LCD_SET_REVERSE_DISPLAY);
else
lcd_write_command(LCD_SET_NORMAL_DISPLAY);
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
#ifdef HAVE_DISPLAY_FLIPPED
if (!yesno)
#else
if (yesno)
#endif
#if CONFIG_LCD == LCD_GMINI100
{
lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01);
lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08);
xoffset = 132 - LCD_WIDTH;
}
else
{
lcd_write_command(LCD_SET_SEGMENT_REMAP);
lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08);
xoffset = 0;
}
#else
{
lcd_write_command(LCD_SET_SEGMENT_REMAP);
lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION);
xoffset = 132 - LCD_WIDTH; /* 132 colums minus the 112 we have */
}
else
{
lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01);
lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08);
xoffset = 0;
}
#endif
}
/* Rolls up the lcd display by the specified amount of lines.
* Lines that are rolled out over the top of the screen are
* rolled in from the bottom again. This is a hardware
* remapping only and all operations on the lcd are affected.
* ->
* @param int lines - The number of lines that are rolled.
* The value must be 0 <= pixels < LCD_HEIGHT. */
void lcd_roll(int lines)
{
lcd_write_command(LCD_SET_DISPLAY_START_LINE | (lines & (LCD_HEIGHT-1)));
}
#endif /* !SIMULATOR */
/* LCD init */
#ifdef SIMULATOR
void lcd_init(void)
{
create_thread(scroll_thread, scroll_stack,
sizeof(scroll_stack), scroll_name);
}
#else
void lcd_init(void)
{
#if CONFIG_CPU == TCC730
/* Initialise P0 & some P2 output pins:
P0 -> all pins normal cmos output
P2 -> pins 1 to 5 normal cmos output. */
P0CON = 0xff;
P2CONL |= 0x5a;
P2CONL &= 0x5b;
P2CONH |= 1;
#else
/* Initialize PB0-3 as output pins */
PBCR2 &= 0xff00; /* MD = 00 */
PBIOR |= 0x000f; /* IOR = 1 */
#endif
/* inits like the original firmware */
lcd_write_command(LCD_SOFTWARE_RESET);
lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4);
lcd_write_command(LCD_SET_1OVER4_BIAS_RATIO + 0); /* force 1/4 bias: 0 */
lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER + 7);
/* power control register: op-amp=1, regulator=1, booster=1 */
lcd_write_command(LCD_SET_DISPLAY_ON);
lcd_write_command(LCD_SET_NORMAL_DISPLAY);
lcd_set_flip(false);
lcd_write_command(LCD_SET_DISPLAY_START_LINE + 0);
lcd_set_contrast(lcd_default_contrast());
lcd_write_command(LCD_SET_PAGE_ADDRESS);
lcd_write_command(LCD_SET_LOWER_COLUMN_ADDRESS + 0);
lcd_write_command(LCD_SET_HIGHER_COLUMN_ADDRESS + 0);
lcd_clear_display();
lcd_update();
create_thread(scroll_thread, scroll_stack,
sizeof(scroll_stack), scroll_name);
}
/*** Update functions ***/
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit(const unsigned char* data, int x, int by, int width,
int bheight, int stride)
{
/* Copy display bitmap to hardware */
while (bheight--)
{
lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf));
lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset)>>4) & 0xf));
lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf));
lcd_write_data(data, width);
data += stride;
}
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void) ICODE_ATTR;
void lcd_update(void)
{
int y;
/* Copy display bitmap to hardware */
for (y = 0; y < LCD_HEIGHT/8; y++)
{
lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
lcd_write_command (LCD_CNTL_HIGHCOL | ((xoffset >> 4) & 0xf));
lcd_write_command (LCD_CNTL_LOWCOL | (xoffset & 0xf));
lcd_write_data (lcd_framebuffer[y], LCD_WIDTH);
}
}
/* Update a fraction of the display. */
void lcd_update_rect(int, int, int, int) ICODE_ATTR;
void lcd_update_rect(int x, int y, int width, int height)
{
int ymax;
/* The Y coordinates have to work on even 8 pixel rows */
ymax = (y + height-1) >> 3;
y >>= 3;
if(x + width > LCD_WIDTH)
width = LCD_WIDTH - x;
if (width <= 0)
return; /* nothing left to do, 0 is harmful to lcd_write_data() */
if(ymax >= LCD_HEIGHT/8)
ymax = LCD_HEIGHT/8-1;
/* Copy specified rectange bitmap to hardware */
for (; y <= ymax; y++)
{
lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset) >> 4) & 0xf));
lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf));
lcd_write_data (&lcd_framebuffer[y][x], width);
}
}
#endif /* !SIMULATOR */
/*** parameter handling ***/
void lcd_set_drawmode(int mode)
{
drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
}
int lcd_get_drawmode(void)
{
return drawmode;
}
void lcd_setmargins(int x, int y)
{
xmargin = x;
ymargin = y;
}
int lcd_getxmargin(void)
{
return xmargin;
}
int lcd_getymargin(void)
{
return ymargin;
}
void lcd_setfont(int newfont)
{
curfont = newfont;
}
int lcd_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_framebuffer[y>>3][x] |= 1 << (y & 7);
}
static void clearpixel(int x, int y)
{
lcd_framebuffer[y>>3][x] &= ~(1 << (y & 7));
}
static void flippixel(int x, int y)
{
lcd_framebuffer[y>>3][x] ^= 1 << (y & 7);
}
static void nopixel(int x, int y)
{
(void)x;
(void)y;
}
lcd_pixelfunc_type* const lcd_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_blockfuncs[8] = {
flipblock, bgblock, fgblock, solidblock,
flipinvblock, bginvblock, fginvblock, solidinvblock
};
/*** drawing functions ***/
/* Clear the whole display */
void lcd_clear_display(void)
{
unsigned bits = (drawmode & DRMODE_INVERSEVID) ? 0xFFu : 0;
memset(lcd_framebuffer, bits, sizeof lcd_framebuffer);
scrolling_lines = 0;
}
/* Set a single pixel */
void lcd_drawpixel(int x, int y)
{
if (((unsigned)x < LCD_WIDTH) && ((unsigned)y < LCD_HEIGHT))
lcd_pixelfuncs[drawmode](x, y);
}
/* Draw a line */
void lcd_drawline(int x1, int y1, int x2, int y2)
{
int numpixels;
int i;
int deltax, deltay;
int d, dinc1, dinc2;
int x, xinc1, xinc2;
int y, yinc1, yinc2;
lcd_pixelfunc_type *pfunc = lcd_pixelfuncs[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_WIDTH) && ((unsigned)y < LCD_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_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_HEIGHT) || (x1 >= LCD_WIDTH) || (x2 < 0))
return;
/* clipping */
if (x1 < 0)
x1 = 0;
if (x2 >= LCD_WIDTH)
x2 = LCD_WIDTH-1;
bfunc = lcd_blockfuncs[drawmode];
dst = &lcd_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_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_WIDTH) || (y1 >= LCD_HEIGHT) || (y2 < 0))
return;
/* clipping */
if (y1 < 0)
y1 = 0;
if (y2 >= LCD_HEIGHT)
y2 = LCD_HEIGHT-1;
bfunc = lcd_blockfuncs[drawmode];
dst = &lcd_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_WIDTH;
mask = 0xFFu;
}
mask &= mask_bottom;
bfunc(dst, mask, 0xFFu);
}
/* Draw a rectangular box */
void lcd_drawrect(int x, int y, int width, int height)
{
if ((width <= 0) || (height <= 0))
return;
int x2 = x + width - 1;
int y2 = y + height - 1;
lcd_vline(x, y, y2);
lcd_vline(x2, y, y2);
lcd_hline(x, x2, y);
lcd_hline(x, x2, y2);
}
/* Fill a rectangular area */
void lcd_fillrect(int x, int y, int width, int height)
{
int ny;
unsigned char *dst, *dst_end;
unsigned mask, mask_bottom;
unsigned bits = 0xFFu;
lcd_blockfunc_type *bfunc;
bool fillopt;
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) || (y >= LCD_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_WIDTH)
width = LCD_WIDTH - x;
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y;
fillopt = (drawmode & DRMODE_INVERSEVID) ?
(drawmode & DRMODE_BG) : (drawmode & DRMODE_FG);
if (fillopt &&(drawmode & DRMODE_INVERSEVID))
bits = 0;
bfunc = lcd_blockfuncs[drawmode];
dst = &lcd_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_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_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_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_WIDTH) || (y >= LCD_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_WIDTH)
width = LCD_WIDTH - x;
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y;
src += stride * (src_y >> 3) + src_x; /* move starting point */
src_y &= 7;
y -= src_y;
dst = &lcd_framebuffer[y>>3][x];
shift = y & 7;
ny = height - 1 + shift + src_y;
bfunc = lcd_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_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_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_bitmap(const unsigned char *src, int x, int y, int width, int height)
{
lcd_bitmap_part(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str)
{
int ch;
struct font* pf = font_get(curfont);
if (bidi_support_enabled)
str = bidi_l2v(str, 1);
while ((ch = *str++) != '\0' && x < LCD_WIDTH)
{
int width;
const unsigned char *bits;
/* check input range */
if (ch < pf->firstchar || ch >= pf->firstchar+pf->size)
ch = pf->defaultchar;
ch -= pf->firstchar;
/* get proportional width and glyph bits */
width = pf->width ? pf->width[ch] : pf->maxwidth;
if (ofs > width)
{
ofs -= width;
continue;
}
bits = pf->bits + (pf->offset ?
pf->offset[ch] : ((pf->height + 7) / 8 * pf->maxwidth * ch));
lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs, pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void lcd_putsxy(int x, int y, const unsigned char *str)
{
lcd_putsxyofs(x, y, 0, str);
}
/*** Line oriented text output ***/
void lcd_puts_style(int x, int y, const unsigned char *str, int style)
{
int xpos,ypos,w,h;
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_getstringsize(str, &w, &h);
xpos = xmargin + x*w / strlen(str);
ypos = ymargin + y*h;
lcd_putsxy(xpos, ypos, str);
drawmode = (DRMODE_SOLID|DRMODE_INVERSEVID);
lcd_fillrect(xpos + w, ypos, LCD_WIDTH - (xpos + w), h);
if (style & STYLE_INVERT)
{
drawmode = DRMODE_COMPLEMENT;
lcd_fillrect(xpos, ypos, LCD_WIDTH - xpos, h);
}
drawmode = lastmode;
}
/* put a string at a given char position */
void lcd_puts(int x, int y, const unsigned char *str)
{
lcd_puts_style(x, y, str, STYLE_DEFAULT);
}
/*** 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_invertscroll(int x, int y)
{
struct scrollinfo* s;
(void)x;
s = &scroll[y];
s->invert = !s->invert;
}
void lcd_stop_scroll(void)
{
scrolling_lines=0;
}
void lcd_scroll_speed(int speed)
{
scroll_ticks = scroll_tick_table[speed];
}
void lcd_scroll_step(int step)
{
scroll_step = step;
}
void lcd_scroll_delay(int ms)
{
scroll_delay = ms / (HZ / 10);
}
void lcd_bidir_scroll(int percent)
{
bidir_limit = percent;
}
void lcd_puts_scroll(int x, int y, const unsigned char *string)
{
lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT);
}
void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style)
{
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_puts_style(x,y,string,STYLE_INVERT);
}
else
lcd_puts(x,y,string);
lcd_getstringsize(string, &w, &h);
if (LCD_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_getstringsize(s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( bidir_limit ) {
s->bidir = s->width < (LCD_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_getstringsize(s->line, &w, &h);
}
end = strchr(s->line, '\0');
strncpy(end, string, LCD_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);
}
static void scroll_thread(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
/* initialize scroll struct array */
scrolling_lines = 0;
while ( 1 ) {
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_WIDTH - xpos)) {
/* at end of line */
s->offset = s->width - (LCD_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 = (DRMODE_SOLID|DRMODE_INVERSEVID);
lcd_fillrect(xpos, ypos, LCD_WIDTH - xpos, pf->height);
drawmode = DRMODE_SOLID;
lcd_putsxyofs(xpos, ypos, s->offset, s->line);
if (s->invert)
{
drawmode = DRMODE_COMPLEMENT;
lcd_fillrect(xpos, ypos, LCD_WIDTH - xpos, pf->height);
}
drawmode = lastmode;
lcd_update_rect(xpos, ypos, LCD_WIDTH - xpos, pf->height);
}
sleep(scroll_ticks);
}
}
Reference in a new issue View git blame Copy permalink