You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
390 lines
9.4 KiB
C
390 lines
9.4 KiB
C
/*
|
|
|
|
u8g_pb8h1.c
|
|
|
|
8bit height monochrom (1 bit) page buffer
|
|
byte has horizontal orientation
|
|
|
|
Universal 8bit Graphics Library
|
|
|
|
Copyright (c) 2011, olikraus@gmail.com
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without modification,
|
|
are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice, this list
|
|
of conditions and the following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above copyright notice, this
|
|
list of conditions and the following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
|
total buffer size is limited to 256 bytes because of the calculation inside the set pixel procedure
|
|
|
|
23. Sep 2012: Bug with down procedure, see FPS 1st page --> fixed (bug located in u8g_clip.c)
|
|
|
|
*/
|
|
|
|
#include "u8g.h"
|
|
#include <string.h>
|
|
|
|
#ifdef __unix__
|
|
#include <assert.h>
|
|
#endif
|
|
|
|
/* NEW_CODE disabled, because the performance increase was too slow and not worth compared */
|
|
/* to the increase of code size */
|
|
/* #define NEW_CODE */
|
|
|
|
#ifdef __unix__
|
|
void *u8g_buf_lower_limit;
|
|
void *u8g_buf_upper_limit;
|
|
#endif
|
|
|
|
void u8g_pb8h1_Init(u8g_pb_t *b, void *buf, u8g_uint_t width) U8G_NOINLINE;
|
|
void u8g_pb8h1_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index) U8G_NOINLINE;
|
|
void u8g_pb8h1_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel) U8G_NOINLINE ;
|
|
void u8g_pb8h1_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel) U8G_NOINLINE;
|
|
uint8_t u8g_dev_pb8h1_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg);
|
|
|
|
|
|
#ifdef NEW_CODE
|
|
struct u8g_pb_h1_struct
|
|
{
|
|
u8g_uint_t x;
|
|
u8g_uint_t y;
|
|
uint8_t *ptr;
|
|
uint8_t mask;
|
|
uint8_t line_byte_len;
|
|
uint8_t cnt;
|
|
};
|
|
|
|
static uint8_t u8g_pb8h1_bitmask[8] = { 0x080, 0x040, 0x020, 0x010, 0x008, 0x004, 0x002, 0x001 };
|
|
|
|
static void u8g_pb8h1_state_right(struct u8g_pb_h1_struct *s) U8G_NOINLINE;
|
|
static void u8g_pb8h1_state_right(struct u8g_pb_h1_struct *s)
|
|
{
|
|
register u8g_uint_t x;
|
|
x = s->x;
|
|
x++;
|
|
s->x = x;
|
|
x &= 7;
|
|
s->mask = u8g_pb8h1_bitmask[x];
|
|
if ( x == 0 )
|
|
s->ptr++;
|
|
}
|
|
|
|
static void u8g_pb8h1_state_left(struct u8g_pb_h1_struct *s)
|
|
{
|
|
register u8g_uint_t x;
|
|
x = s->x;
|
|
x--;
|
|
s->x = x;
|
|
x &= 7;
|
|
s->mask = u8g_pb8h1_bitmask[x];
|
|
if ( x == 7 )
|
|
s->ptr--;
|
|
}
|
|
|
|
static void u8g_pb8h1_state_down(struct u8g_pb_h1_struct *s)
|
|
{
|
|
s->y++;
|
|
s->ptr += s->line_byte_len;
|
|
}
|
|
|
|
static void u8g_pb8h1_state_up(struct u8g_pb_h1_struct *s)
|
|
{
|
|
s->y--;
|
|
s->ptr -= s->line_byte_len;
|
|
}
|
|
|
|
static void u8g_pb8h1_state_init(struct u8g_pb_h1_struct *s, u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y) U8G_NOINLINE;
|
|
static void u8g_pb8h1_state_init(struct u8g_pb_h1_struct *s, u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y)
|
|
{
|
|
u8g_uint_t tmp;
|
|
|
|
uint8_t *ptr = b->buf;
|
|
|
|
s->x = x;
|
|
s->y = y;
|
|
|
|
y -= b->p.page_y0;
|
|
|
|
tmp = b->width;
|
|
tmp >>= 3;
|
|
s->line_byte_len = tmp;
|
|
|
|
/* assume negative y values, can be down to -7, subtract this from the pointer and add correction of 8 to y */
|
|
ptr -= tmp*8;
|
|
y+=8;
|
|
/* it is important that the result of tmp*y can be 16 bit value also for 8 bit mode */
|
|
ptr += tmp*y;
|
|
|
|
s->mask = u8g_pb8h1_bitmask[x & 7];
|
|
|
|
/* assume negative x values (to -7), subtract 8 pixel from the pointer and add 8 to x */
|
|
ptr--;
|
|
x += 8;
|
|
x >>= 3;
|
|
ptr += x;
|
|
s->ptr = ptr;
|
|
}
|
|
|
|
static void u8g_pb8h1_state_set_pixel(struct u8g_pb_h1_struct *s, uint8_t color_index) U8G_NOINLINE;
|
|
static void u8g_pb8h1_state_set_pixel(struct u8g_pb_h1_struct *s, uint8_t color_index)
|
|
{
|
|
|
|
#ifdef __unix__
|
|
assert( s->ptr >= u8g_buf_lower_limit );
|
|
assert( s->ptr < u8g_buf_upper_limit );
|
|
#endif
|
|
|
|
if ( color_index )
|
|
{
|
|
*s->ptr |= s->mask;
|
|
}
|
|
else
|
|
{
|
|
uint8_t mask = s->mask;
|
|
mask ^=0xff;
|
|
*s->ptr &= mask;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
void u8g_pb8h1_Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
|
|
{
|
|
b->buf = buf;
|
|
b->width = width;
|
|
u8g_pb_Clear(b);
|
|
}
|
|
|
|
/* limitation: total buffer must not exceed 256 bytes */
|
|
void u8g_pb8h1_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index)
|
|
{
|
|
#ifdef NEW_CODE
|
|
struct u8g_pb_h1_struct s;
|
|
u8g_pb8h1_state_init(&s, b, x, y);
|
|
u8g_pb8h1_state_set_pixel(&s, color_index);
|
|
|
|
// u8g_pb8h1_state_up(&s);
|
|
// if ( s.y > b->p.page_y1 )
|
|
// return;
|
|
// if ( s.x > b->width )
|
|
// return;
|
|
// u8g_pb8h1_state_set_pixel(&s, color_index);
|
|
#else
|
|
register uint8_t mask;
|
|
u8g_uint_t tmp;
|
|
uint8_t *ptr = b->buf;
|
|
|
|
y -= b->p.page_y0;
|
|
tmp = b->width;
|
|
tmp >>= 3;
|
|
tmp *= (uint8_t)y;
|
|
ptr += tmp;
|
|
|
|
mask = 0x080;
|
|
mask >>= x & 7;
|
|
x >>= 3;
|
|
ptr += x;
|
|
if ( color_index )
|
|
{
|
|
*ptr |= mask;
|
|
}
|
|
else
|
|
{
|
|
mask ^=0xff;
|
|
*ptr &= mask;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void u8g_pb8h1_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel)
|
|
{
|
|
if ( arg_pixel->y < b->p.page_y0 )
|
|
return;
|
|
if ( arg_pixel->y > b->p.page_y1 )
|
|
return;
|
|
if ( arg_pixel->x >= b->width )
|
|
return;
|
|
u8g_pb8h1_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color);
|
|
}
|
|
|
|
void u8g_pb8h1_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
|
|
{
|
|
register uint8_t pixel = arg_pixel->pixel;
|
|
do
|
|
{
|
|
if ( pixel & 128 )
|
|
{
|
|
u8g_pb8h1_SetPixel(b, arg_pixel);
|
|
}
|
|
switch( arg_pixel->dir )
|
|
{
|
|
case 0: arg_pixel->x++; break;
|
|
case 1: arg_pixel->y++; break;
|
|
case 2: arg_pixel->x--; break;
|
|
case 3: arg_pixel->y--; break;
|
|
}
|
|
pixel <<= 1;
|
|
} while( pixel != 0 );
|
|
}
|
|
|
|
void u8g_pb8h1_Set8PixelOpt2(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
|
|
{
|
|
register uint8_t pixel = arg_pixel->pixel;
|
|
u8g_uint_t dx = 0;
|
|
u8g_uint_t dy = 0;
|
|
|
|
switch( arg_pixel->dir )
|
|
{
|
|
case 0: dx++; break;
|
|
case 1: dy++; break;
|
|
case 2: dx--; break;
|
|
case 3: dy--; break;
|
|
}
|
|
|
|
do
|
|
{
|
|
if ( pixel & 128 )
|
|
u8g_pb8h1_SetPixel(b, arg_pixel);
|
|
arg_pixel->x += dx;
|
|
arg_pixel->y += dy;
|
|
pixel <<= 1;
|
|
} while( pixel != 0 );
|
|
}
|
|
|
|
#ifdef NEW_CODE
|
|
static void u8g_pb8h1_Set8PixelState(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
|
|
{
|
|
register uint8_t pixel = arg_pixel->pixel;
|
|
struct u8g_pb_h1_struct s;
|
|
uint8_t cnt;
|
|
u8g_pb8h1_state_init(&s, b, arg_pixel->x, arg_pixel->y);
|
|
cnt = 8;
|
|
switch( arg_pixel->dir )
|
|
{
|
|
case 0:
|
|
do
|
|
{
|
|
if ( s.x < b->width )
|
|
if ( pixel & 128 )
|
|
u8g_pb8h1_state_set_pixel(&s, arg_pixel->color);
|
|
u8g_pb8h1_state_right(&s);
|
|
pixel <<= 1;
|
|
cnt--;
|
|
} while( cnt > 0 && pixel != 0 );
|
|
break;
|
|
case 1:
|
|
do
|
|
{
|
|
if ( s.y >= b->p.page_y0 )
|
|
if ( s.y <= b->p.page_y1 )
|
|
if ( pixel & 128 )
|
|
u8g_pb8h1_state_set_pixel(&s, arg_pixel->color);
|
|
u8g_pb8h1_state_down(&s);
|
|
pixel <<= 1;
|
|
cnt--;
|
|
} while( cnt > 0 && pixel != 0 );
|
|
break;
|
|
case 2:
|
|
do
|
|
{
|
|
if ( s.x < b->width )
|
|
if ( pixel & 128 )
|
|
u8g_pb8h1_state_set_pixel(&s, arg_pixel->color);
|
|
u8g_pb8h1_state_left(&s);
|
|
pixel <<= 1;
|
|
cnt--;
|
|
} while( cnt > 0 && pixel != 0 );
|
|
break;
|
|
case 3:
|
|
do
|
|
{
|
|
if ( s.y >= b->p.page_y0 )
|
|
if ( s.y <= b->p.page_y1 )
|
|
if ( pixel & 128 )
|
|
u8g_pb8h1_state_set_pixel(&s, arg_pixel->color);
|
|
u8g_pb8h1_state_up(&s);
|
|
pixel <<= 1;
|
|
cnt--;
|
|
} while( cnt > 0 && pixel != 0 );
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
uint8_t u8g_dev_pb8h1_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
|
|
{
|
|
u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
|
|
switch(msg)
|
|
{
|
|
case U8G_DEV_MSG_SET_8PIXEL:
|
|
#ifdef NEW_CODE
|
|
if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
|
|
u8g_pb8h1_Set8PixelState(pb, (u8g_dev_arg_pixel_t *)arg);
|
|
#else
|
|
if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
|
|
u8g_pb8h1_Set8PixelOpt2(pb, (u8g_dev_arg_pixel_t *)arg);
|
|
#endif
|
|
break;
|
|
case U8G_DEV_MSG_SET_PIXEL:
|
|
u8g_pb8h1_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg);
|
|
break;
|
|
case U8G_DEV_MSG_INIT:
|
|
break;
|
|
case U8G_DEV_MSG_STOP:
|
|
break;
|
|
case U8G_DEV_MSG_PAGE_FIRST:
|
|
u8g_pb_Clear(pb);
|
|
u8g_page_First(&(pb->p));
|
|
break;
|
|
case U8G_DEV_MSG_PAGE_NEXT:
|
|
if ( u8g_page_Next(&(pb->p)) == 0 )
|
|
return 0;
|
|
u8g_pb_Clear(pb);
|
|
break;
|
|
#ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
|
|
case U8G_DEV_MSG_IS_BBX_INTERSECTION:
|
|
return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
|
|
#endif
|
|
case U8G_DEV_MSG_GET_PAGE_BOX:
|
|
u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
|
|
break;
|
|
case U8G_DEV_MSG_GET_WIDTH:
|
|
*((u8g_uint_t *)arg) = pb->width;
|
|
break;
|
|
case U8G_DEV_MSG_GET_HEIGHT:
|
|
*((u8g_uint_t *)arg) = pb->p.total_height;
|
|
break;
|
|
case U8G_DEV_MSG_SET_COLOR_ENTRY:
|
|
break;
|
|
case U8G_DEV_MSG_SET_XY_CB:
|
|
break;
|
|
case U8G_DEV_MSG_GET_MODE:
|
|
return U8G_MODE_BW;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|