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/***************************************************************************
* __________ __ ___.
* 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 LOGF_ENABLE*/
#include "logf.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[];
#ifndef DISABLE_ALPHA_BITMAP
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);
#endif /* !DISABLE_ALPHA_BITMAP */
#include "lcd-color-common.c"
#include "lcd-bitmap-common.c"
#include "lcd-16bit-common.c"
/*** drawing functions ***/
/* Draw a horizontal line (optimised) */
void lcd_hline(int x1, int x2, int y)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst, *dst_end;
int stride_dst;
lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[vp->drawmode];
if (!clip_viewport_hline(vp, &x1, &x2, &y))
return;
dst = FBADDR(x1, y);
stride_dst = vp->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)
{
struct viewport *vp = lcd_current_viewport;
int height;
unsigned bits = 0;
enum fill_opt fillopt = OPT_NONE;
fb_data *dst, *dst_end;
if(!clip_viewport_vline(vp, &x, &y1, &y2))
return;
height = y2 - y1 + 1;
/* drawmode and optimisation */
if (vp->drawmode & DRMODE_INVERSEVID)
{
if (vp->drawmode & DRMODE_BG)
{
if (!lcd_backdrop)
{
fillopt = OPT_SET;
bits = vp->bg_pattern;
}
else
fillopt = OPT_COPY;
}
}
else
{
if (vp->drawmode & DRMODE_FG)
{
fillopt = OPT_SET;
bits = vp->fg_pattern;
}
}
if (fillopt == OPT_NONE && vp->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)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst;
int stride_dst;
if (!clip_viewport_rect(vp, &x, &y, &width, &height, &src_x, &src_y))
return;
src += stride * src_x + src_y; /* move starting point */
dst = FBADDR(x, y);
stride_dst = vp->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)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst, *dst_end;
int stride_dst;
if (!clip_viewport_rect(vp, &x, &y, &width, &height, &src_x, &src_y))
return;
src += stride * src_x + src_y; /* move starting point */
dst = FBADDR(x, y);
stride_dst = vp->buffer->stride;
dst_end = dst + width * stride_dst;
do
{
int i;
for(i = 0;i < height;i++)
{
if (src[i] == REPLACEWITHFG_COLOR)
dst[i] = vp->fg_pattern;
else if(src[i] != TRANSPARENT_COLOR)
dst[i] = src[i];
}
src += stride;
dst += stride_dst;
}
while (dst < dst_end);
}
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