nihilazo
/
rockbox
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
rockbox/firmware/drivers/lcd-16bit-vert.c

372 lines
9.8 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Dave Chapman
* Copyright (C) 2009 by Karl Kurbjun
*
* Rockbox driver for 16-bit colour LCDs with vertical strides
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include <stdlib.h>
#include "string-extra.h" /* mem*() */
#include "file.h"
#include "debug.h"
#include "system.h"
#include "font.h"
#include "rbunicode.h"
#include "bidi.h"
#include "scroll_engine.h"
#define ROW_INC 1
#define COL_INC lcd_current_viewport->buffer->stride
extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_backdrop[];
extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_bgcolor[];
static void ICODE_ATTR lcd_alpha_bitmap_part_mix(const fb_data* image,
const unsigned char *src, int src_x,
int src_y, int x, int y,
int width, int height,
int stride_image, int stride_src);
#include "lcd-color-common.c"
#include "lcd-16bit-common.c"
#include "lcd-bitmap-common.c"
/*** drawing functions ***/
/* Draw a horizontal line (optimised) */
void lcd_hline(int x1, int x2, int y)
{
int x;
fb_data *dst, *dst_end;
int stride_dst;
lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[lcd_current_viewport->drawmode];
/* direction flip */
if (x2 < x1)
{
x = x1;
x1 = x2;
x2 = x;
}
/******************** In viewport clipping **********************/
/* nothing to draw? */
if (((unsigned)y >= (unsigned)lcd_current_viewport->height) ||
(x1 >= lcd_current_viewport->width) ||
(x2 < 0))
return;
if (x1 < 0)
x1 = 0;
if (x2 >= lcd_current_viewport->width)
x2 = lcd_current_viewport->width-1;
/* Adjust x1 and y to viewport */
x1 += lcd_current_viewport->x;
x2 += lcd_current_viewport->x;
y += lcd_current_viewport->y;
#if defined(HAVE_VIEWPORT_CLIP)
/********************* Viewport on screen clipping ********************/
/* nothing to draw? */
if (((unsigned)y >= (unsigned) LCD_HEIGHT) || (x1 >= LCD_WIDTH)
|| (x2 < 0))
return;
/* clipping */
if (x1 < 0)
x1 = 0;
if (x2 >= LCD_WIDTH)
x2 = LCD_WIDTH-1;
#endif
dst = FBADDR(x1 , y );
stride_dst = lcd_current_viewport->buffer->stride;
dst_end = dst + (x2 - x1) * stride_dst;
do
{
pfunc(dst);
dst += stride_dst;
}
while (dst <= dst_end);
}
/* Draw a vertical line (optimised) */
void lcd_vline(int x, int y1, int y2)
{
int y, height;
unsigned bits = 0;
enum fill_opt fillopt = OPT_NONE;
fb_data *dst, *dst_end;
/* direction flip */
if (y2 < y1)
{
y = y1;
y1 = y2;
y2 = y;
}
/******************** In viewport clipping **********************/
/* nothing to draw? */
if (((unsigned)x >= (unsigned)lcd_current_viewport->width) ||
(y1 >= lcd_current_viewport->height) ||
(y2 < 0))
return;
if (y1 < 0)
y1 = 0;
if (y2 >= lcd_current_viewport->height)
y2 = lcd_current_viewport->height-1;
/* adjust for viewport */
x += lcd_current_viewport->x;
y1 += lcd_current_viewport->y;
y2 += lcd_current_viewport->y;
#if defined(HAVE_VIEWPORT_CLIP)
/********************* Viewport on screen clipping ********************/
/* nothing to draw? */
if (( (unsigned) x >= (unsigned)LCD_WIDTH) || (y1 >= LCD_HEIGHT)
|| (y2 < 0))
return;
/* clipping */
if (y1 < 0)
y1 = 0;
if (y2 >= LCD_HEIGHT)
y2 = LCD_HEIGHT-1;
#endif
height = y2 - y1 + 1;
/* drawmode and optimisation */
if (lcd_current_viewport->drawmode & DRMODE_INVERSEVID)
{
if (lcd_current_viewport->drawmode & DRMODE_BG)
{
if (!lcd_backdrop)
{
fillopt = OPT_SET;
bits = lcd_current_viewport->bg_pattern;
}
else
fillopt = OPT_COPY;
}
}
else
{
if (lcd_current_viewport->drawmode & DRMODE_FG)
{
fillopt = OPT_SET;
bits = lcd_current_viewport->fg_pattern;
}
}
if (fillopt == OPT_NONE && lcd_current_viewport->drawmode != DRMODE_COMPLEMENT)
return;
dst = FBADDR(x, y1);
switch (fillopt)
{
case OPT_SET:
memset16(dst, bits, height);
break;
case OPT_COPY:
memcpy(dst, (void *)((long)dst + lcd_backdrop_offset),
height * sizeof(fb_data));
break;
case OPT_NONE: /* DRMODE_COMPLEMENT */
dst_end = dst + height;
do
*dst = ~(*dst);
while (++dst < dst_end);
break;
}
}
/* Draw a partial native bitmap */
void ICODE_ATTR lcd_bitmap_part(const fb_data *src, int src_x, int src_y,
int stride, int x, int y, int width,
int height)
{
fb_data *dst;
int stride_dst;
/******************** Image in viewport clipping **********************/
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= lcd_current_viewport->width) ||
(y >= lcd_current_viewport->height) || (x + width <= 0) || (y + height <= 0))
return;
if (x < 0)
{
width += x;
src_x -= x;
x = 0;
}
if (y < 0)
{
height += y;
src_y -= y;
y = 0;
}
if (x + width > lcd_current_viewport->width)
width = lcd_current_viewport->width - x;
if (y + height > lcd_current_viewport->height)
height = lcd_current_viewport->height - y;
/* adjust for viewport */
x += lcd_current_viewport->x;
y += lcd_current_viewport->y;
#if defined(HAVE_VIEWPORT_CLIP)
/********************* Viewport on screen clipping ********************/
/* nothing to draw? */
if ((x >= LCD_WIDTH) || (y >= LCD_HEIGHT)
|| (x + width <= 0) || (y + height <= 0))
return;
/* clip image in viewport in screen */
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;
#endif
src += stride * src_x + src_y; /* move starting point */
dst = FBADDR(x, y);
stride_dst = lcd_current_viewport->buffer->stride;
fb_data *dst_end = dst + width * stride_dst;
do
{
memcpy(dst, src, height * sizeof(fb_data));
src += stride;
dst += stride_dst;
}
while (dst < dst_end);
}
/* Draw a partial native bitmap */
void ICODE_ATTR lcd_bitmap_transparent_part(const fb_data *src, int src_x,
int src_y, int stride, int x,
int y, int width, int height)
{
fb_data *dst, *dst_end;
int stride_dst;
/******************** Image in viewport clipping **********************/
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= lcd_current_viewport->width) ||
(y >= lcd_current_viewport->height) || (x + width <= 0) || (y + height <= 0))
return;
if (x < 0)
{
width += x;
src_x -= x;
x = 0;
}
if (y < 0)
{
height += y;
src_y -= y;
y = 0;
}
if (x + width > lcd_current_viewport->width)
width = lcd_current_viewport->width - x;
if (y + height > lcd_current_viewport->height)
height = lcd_current_viewport->height - y;
/* adjust for viewport */
x += lcd_current_viewport->x;
y += lcd_current_viewport->y;
#if defined(HAVE_VIEWPORT_CLIP)
/********************* Viewport on screen clipping ********************/
/* nothing to draw? */
if ((x >= LCD_WIDTH) || (y >= LCD_HEIGHT)
|| (x + width <= 0) || (y + height <= 0))
return;
/* clip image in viewport in screen */
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;
#endif
src += stride * src_x + src_y; /* move starting point */
dst = FBADDR(x, y);
stride_dst = lcd_current_viewport->buffer->stride;
dst_end = dst + width * stride_dst;
do
{
int i;
for(i = 0;i < height;i++)
{
if (src[i] == REPLACEWITHFG_COLOR)
dst[i] = lcd_current_viewport->fg_pattern;
else if(src[i] != TRANSPARENT_COLOR)
dst[i] = src[i];
}
src += stride;
dst += stride_dst;
}
while (dst < dst_end);
}
Reference in New Issue View Git Blame Copy Permalink