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rockbox/apps/plugins/rockpaint.c
Thomas Martitz 9edd6d4ee9 Anti-Aliased Fonts support. 
This enables Rockbox to render anti-aliased fonts using an alpha blending method.
The input font bitmaps are 4bit, i.e. 4x larger, but the metadata size stays the same.

A tool, convttf, for converting ttf fonts directly to the Rockbox fnt format is provided.
It has a useful help output, but the parameter that works best is -c1 or -c2 (2 for larger font sizes).

Flyspray: FS#8961
Author: Initial work by Jonas Hurrelmann, further work by Fred Bauer, Andrew Mahone, Teruaki Kawashima and myself.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29523 a1c6a512-1295-4272-9138-f99709370657
2011-03-05 18:36:51 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Antoine Cellerier <dionoea -at- videolan -dot- org>
* Based on parts of rockpaint 0.45, Copyright (C) 2005 Eli Sherer
*
* 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.
*
****************************************************************************/
/**
* TODO:
* - implement 2 layers with alpha colors
* - take brush width into account when drawing shapes
* - handle bigger than screen bitmaps
*/
#include "plugin.h"
#include "lib/pluginlib_bmp.h"
#include "lib/rgb_hsv.h"
#include "lib/playback_control.h"
#include "pluginbitmaps/rockpaint.h"
#include "pluginbitmaps/rockpaint_hsvrgb.h"
/***********************************************************************
* Buttons
***********************************************************************/
#if CONFIG_KEYPAD == IRIVER_H300_PAD
#define ROCKPAINT_QUIT BUTTON_OFF
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_ON
#define ROCKPAINT_TOOLBAR BUTTON_REC
#define ROCKPAINT_TOOLBAR2 BUTTON_MODE
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define ROCKPAINT_QUIT ( ~BUTTON_MAIN )
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU ( BUTTON_SELECT | BUTTON_MENU )
#define ROCKPAINT_TOOLBAR ( BUTTON_MENU | BUTTON_LEFT )
#define ROCKPAINT_TOOLBAR2 ( BUTTON_MENU | BUTTON_RIGHT )
#define ROCKPAINT_UP BUTTON_MENU
#define ROCKPAINT_DOWN BUTTON_PLAY
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif ( CONFIG_KEYPAD == IAUDIO_X5M5_PAD )
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_PLAY
#define ROCKPAINT_TOOLBAR BUTTON_REC
#define ROCKPAINT_TOOLBAR2 ( BUTTON_REC | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == GIGABEAT_PAD
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_A
#define ROCKPAINT_TOOLBAR2 ( BUTTON_A | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
(CONFIG_KEYPAD == SANSA_C200_PAD)
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU ( BUTTON_SELECT | BUTTON_POWER )
#define ROCKPAINT_TOOLBAR BUTTON_REC
#define ROCKPAINT_TOOLBAR2 ( BUTTON_REC | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
#define ROCKPAINT_QUIT (BUTTON_HOME|BUTTON_REPEAT)
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU ( BUTTON_SELECT | BUTTON_DOWN )
#define ROCKPAINT_TOOLBAR ( BUTTON_SELECT | BUTTON_LEFT )
#define ROCKPAINT_TOOLBAR2 ( BUTTON_SELECT | BUTTON_RIGHT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif ( CONFIG_KEYPAD == IRIVER_H10_PAD )
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_FF
#define ROCKPAINT_MENU BUTTON_PLAY
#define ROCKPAINT_TOOLBAR BUTTON_REW
#define ROCKPAINT_TOOLBAR2 ( BUTTON_REW | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_SCROLL_UP
#define ROCKPAINT_DOWN BUTTON_SCROLL_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == GIGABEAT_S_PAD
#define ROCKPAINT_QUIT BUTTON_BACK
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_PLAY
#define ROCKPAINT_TOOLBAR2 ( BUTTON_PLAY | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif ( CONFIG_KEYPAD == COWON_D2_PAD )
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_MENU BUTTON_MENU
#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
#define ROCKPAINT_QUIT BUTTON_BACK
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_PLAY
#define ROCKPAINT_TOOLBAR2 ( BUTTON_PLAY | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_SELECT
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_VIEW
#define ROCKPAINT_TOOLBAR2 BUTTON_PLAYLIST
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == PHILIPS_HDD6330_PAD
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_PLAY
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_PREV
#define ROCKPAINT_TOOLBAR2 BUTTON_NEXT
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_DRAW BUTTON_PLAY
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_RIGHT
#define ROCKPAINT_TOOLBAR2 BUTTON_LEFT
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_PREV
#define ROCKPAINT_RIGHT BUTTON_NEXT
#elif ( CONFIG_KEYPAD == ONDAVX747_PAD )
#define ROCKPAINT_QUIT BUTTON_POWER
#define ROCKPAINT_MENU BUTTON_MENU
#elif ( CONFIG_KEYPAD == ONDAVX777_PAD )
#define ROCKPAINT_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == MROBE500_PAD
#define ROCKPAINT_QUIT BUTTON_POWER
#elif ( CONFIG_KEYPAD == SAMSUNG_YH_PAD )
#define ROCKPAINT_QUIT BUTTON_REC
#define ROCKPAINT_DRAW BUTTON_PLAY
#define ROCKPAINT_MENU BUTTON_FFWD
#define ROCKPAINT_TOOLBAR BUTTON_REW
#define ROCKPAINT_TOOLBAR2 ( BUTTON_REW | BUTTON_LEFT )
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_LEFT
#define ROCKPAINT_RIGHT BUTTON_RIGHT
#elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
#define ROCKPAINT_QUIT BUTTON_REC
#define ROCKPAINT_DRAW BUTTON_PLAY
#define ROCKPAINT_MENU BUTTON_MENU
#define ROCKPAINT_TOOLBAR BUTTON_OK
#define ROCKPAINT_TOOLBAR2 BUTTON_CANCEL
#define ROCKPAINT_UP BUTTON_UP
#define ROCKPAINT_DOWN BUTTON_DOWN
#define ROCKPAINT_LEFT BUTTON_PREV
#define ROCKPAINT_RIGHT BUTTON_NEXT
#else
#error "Please define keys for this keypad"
#endif
#ifdef HAVE_TOUCHSCREEN
#ifndef ROCKPAINT_QUIT
#define ROCKPAINT_QUIT BUTTON_TOPLEFT
#endif
#ifndef ROCKPAINT_DRAW
#define ROCKPAINT_DRAW BUTTON_CENTER
#endif
#ifndef ROCKPAINT_MENU
#define ROCKPAINT_MENU BUTTON_TOPRIGHT
#endif
#ifndef ROCKPAINT_TOOLBAR
#define ROCKPAINT_TOOLBAR BUTTON_BOTTOMLEFT
#endif
#ifndef ROCKPAINT_TOOLBAR2
#define ROCKPAINT_TOOLBAR2 BUTTON_BOTTOMRIGHT
#endif
#ifndef ROCKPAINT_UP
#define ROCKPAINT_UP BUTTON_TOPMIDDLE
#endif
#ifndef ROCKPAINT_DOWN
#define ROCKPAINT_DOWN BUTTON_BOTTOMMIDDLE
#endif
#ifndef ROCKPAINT_LEFT
#define ROCKPAINT_LEFT BUTTON_MIDLEFT
#endif
#ifndef ROCKPAINT_RIGHT
#define ROCKPAINT_RIGHT BUTTON_MIDRIGHT
#endif
#endif
/***********************************************************************
* Palette Default Colors
***********************************************************************/
#define COLOR_BLACK LCD_RGBPACK(0,0,0)
#define COLOR_WHITE LCD_RGBPACK(255,255,255)
#define COLOR_DARKGRAY LCD_RGBPACK(128,128,128)
#define COLOR_LIGHTGRAY LCD_RGBPACK(192,192,192)
#define COLOR_RED LCD_RGBPACK(128,0,0)
#define COLOR_LIGHTRED LCD_RGBPACK(255,0,0)
#define COLOR_DARKYELLOW LCD_RGBPACK(128,128,0)
#define COLOR_YELLOW LCD_RGBPACK(255,255,0)
#define COLOR_GREEN LCD_RGBPACK(0,128,0)
#define COLOR_LIGHTGREN LCD_RGBPACK(0,255,0)
#define COLOR_CYAN LCD_RGBPACK(0,128,128)
#define COLOR_LIGHTCYAN LCD_RGBPACK(0,255,255)
#define COLOR_BLUE LCD_RGBPACK(0,0,128)
#define COLOR_LIGHTBLUE LCD_RGBPACK(0,0,255)
#define COLOR_PURPLE LCD_RGBPACK(128,0,128)
#define COLOR_PINK LCD_RGBPACK(255,0,255)
#define COLOR_BROWN LCD_RGBPACK(128,64,0)
#define COLOR_LIGHTBROWN LCD_RGBPACK(255,128,64)
/***********************************************************************
* Program Colors
***********************************************************************/
#define ROCKPAINT_PALETTE LCD_RGBPACK(0,64,128)
#define ROCKPAINT_SELECTED LCD_RGBPACK(128,192,255)
#define ROWS LCD_HEIGHT
#define COLS LCD_WIDTH
/**
* Toolbar positioning stuff ... don't read this unless you really need to
*
* TB Toolbar
* SP Separator
* SC Selected Color
* PL Palette
* TL Tools
*/
/* Separator sizes */
#define TB_SP_MARGIN 3
#define TB_SP_WIDTH (2+2*TB_SP_MARGIN)
/* Selected color sizes */
#define TB_SC_SIZE 12
/* Palette sizes */
#define TB_PL_COLOR_SIZE 7
#define TB_PL_COLOR_SPACING 2
#define TB_PL_WIDTH ( 9 * TB_PL_COLOR_SIZE + 8 * TB_PL_COLOR_SPACING )
#define TB_PL_HEIGHT ( TB_PL_COLOR_SIZE * 2 + TB_PL_COLOR_SPACING )
/* Tools sizes */
#define TB_TL_SIZE 8
#define TB_TL_SPACING 2
#define TB_TL_WIDTH ( 7 * ( TB_TL_SIZE + TB_TL_SPACING ) - TB_TL_SPACING )
#define TB_TL_HEIGHT ( 2 * TB_TL_SIZE + TB_TL_SPACING )
/* Menu button size ... gruik */
#define TB_MENU_MIN_WIDTH 30
/* Selected colors position */
#define TB_SC_FG_TOP 2
#define TB_SC_FG_LEFT 2
#define TB_SC_BG_TOP (TB_SC_FG_TOP+TB_PL_COLOR_SIZE*2+TB_PL_COLOR_SPACING-TB_SC_SIZE)
#define TB_SC_BG_LEFT (TB_SC_FG_LEFT+TB_PL_COLOR_SIZE*2+TB_PL_COLOR_SPACING-TB_SC_SIZE)
/* Palette position */
#define TB_PL_TOP TB_SC_FG_TOP
#define TB_PL_LEFT (TB_SC_BG_LEFT + TB_SC_SIZE + TB_PL_COLOR_SPACING)
/* Tools position */
#define TB_TL_TOP TB_SC_FG_TOP
#define TB_TL_LEFT ( TB_PL_LEFT + TB_PL_WIDTH-1 + TB_SP_WIDTH )
#if TB_TL_LEFT + TB_TL_WIDTH + TB_MENU_MIN_WIDTH >= LCD_WIDTH
#undef TB_TL_TOP
#undef TB_TL_LEFT
#define TB_TL_TOP ( TB_PL_TOP + TB_PL_HEIGHT + 4 )
#define TB_TL_LEFT TB_SC_FG_LEFT
#endif
/* Menu button position */
#define TB_MENU_TOP ( TB_TL_TOP + (TB_TL_HEIGHT-8)/2 )
#define TB_MENU_LEFT ( TB_TL_LEFT + TB_TL_WIDTH-1 + TB_SP_WIDTH )
#define TB_HEIGHT ( TB_TL_TOP + TB_TL_HEIGHT + 1 )
static void draw_pixel(int x,int y);
static void draw_line( int x1, int y1, int x2, int y2 );
static void draw_rect( int x1, int y1, int x2, int y2 );
static void draw_rect_full( int x1, int y1, int x2, int y2 );
static void draw_toolbars(bool update);
static void inv_cursor(bool update);
static void restore_screen(void);
static void clear_drawing(void);
static void reset_tool(void);
static void goto_menu(void);
static int load_bitmap( const char *filename );
static int save_bitmap( char *filename );
/***********************************************************************
* Global variables
***********************************************************************/
static int drawcolor=0; /* Current color (in palette) */
static int bgdrawcolor=9; /* Current background color (in palette) */
static int img_height = ROWS;
static int img_width = COLS;
bool isbg = false; /* gruik ugly hack alert */
static int preview=false; /* Is preview mode on ? */
/* TODO: clean this up */
static int x=0, y=0; /* cursor position */
static int prev_x=-1, prev_y=-1; /* previous saved cursor position */
static int prev_x2=-1, prev_y2=-1;
static int prev_x3=-1, prev_y3=-1;
static int bsize=1; /* brush size */
static int bspeed=1; /* brush speed */
enum Tools { Brush = 0, /* Regular brush */
Fill = 1, /* Fill a shape with current color */
SelectRectangle = 2,
ColorPicker = 3, /* Pick a color */
Line = 4, /* Draw a line between two points */
Unused = 5, /* THIS IS UNUSED ... */
Curve = 6,
Text = 7,
Rectangle = 8, /* Draw a rectangle */
RectangleFull = 9,
Oval = 10, /* Draw an oval */
OvalFull = 11,
LinearGradient = 12,
RadialGradient = 13
};
enum States { State0 = 0, /* initial state */
State1,
State2,
State3,
};
enum Tools tool = Brush;
enum States state = State0;
static bool quit=false;
static int gridsize=0;
static fb_data rp_colors[18] =
{
COLOR_BLACK, COLOR_DARKGRAY, COLOR_RED, COLOR_DARKYELLOW,
COLOR_GREEN, COLOR_CYAN, COLOR_BLUE, COLOR_PURPLE, COLOR_BROWN,
COLOR_WHITE, COLOR_LIGHTGRAY, COLOR_LIGHTRED, COLOR_YELLOW,
COLOR_LIGHTGREN, COLOR_LIGHTCYAN, COLOR_LIGHTBLUE, COLOR_PINK,
COLOR_LIGHTBROWN
};
static fb_data save_buffer[ ROWS*COLS ];
struct tool_func {
void (*state_func)(void);
void (*preview_func)(void);
};
struct incdec_ctx {
int max;
int step[2];
bool wrap;
};
struct incdec_ctx incdec_x = { COLS, { 1, 4}, true };
struct incdec_ctx incdec_y = { ROWS, { 1, 4}, true };
/* Maximum string size allowed for the text tool */
#define MAX_TEXT 256
union buf
{
/* Used by fill and gradient algorithms */
struct
{
short x;
short y;
} coord[ ROWS*COLS ];
/* Used by bezier curve algorithms */
struct
{
short x1, y1;
short x2, y2;
short x3, y3;
short x4, y4;
short depth;
} bezier[ (ROWS*COLS)/5 ]; /* We have 4.5 times more data per struct
* than coord ... so we divide to take
* less memory. */
/* Used to cut/copy/paste data */
fb_data clipboard[ ROWS*COLS ];
/* Used for text mode */
struct
{
char text[MAX_TEXT];
char font[MAX_PATH];
bool initialized;
size_t cache_used;
/* fonts from cache_first to cache_last are stored. */
int cache_first;
int cache_last;
/* save these so that cache can be re-used next time. */
int fvi;
int si;
} text;
};
static union buf *buffer;
static bool audio_buf = false;
/* Current filename */
static char filename[MAX_PATH];
static bool incdec_value(int *pval, struct incdec_ctx *ctx, bool inc, bool bigstep)
{
bool of = true;
int step = ctx->step[bigstep?1:0];
step = inc?step: -step;
*pval += step;
if (ctx->wrap)
{
if (*pval < 0) *pval += ctx->max;
else if (*pval >= ctx->max) *pval -= ctx->max;
else of = false;
}
else
{
if (*pval < 0) *pval = 0;
else if (*pval > ctx->max) *pval = ctx->max;
else of = false;
}
return of;
}
/***********************************************************************
* Offscreen buffer/Text/Fonts handling
*
* Parts of code taken from firmware/drivers/lcd-16bit.c
***********************************************************************/
static void buffer_mono_bitmap_part(
fb_data *buf, int buf_width, int buf_height,
const unsigned char *src, int src_x, int src_y,
int stride, int x, int y, int width, int height )
/* this function only draws the foreground part of the bitmap */
{
const unsigned char *src_end;
fb_data *dst, *dst_end;
unsigned fgcolor = rb->lcd_get_foreground();
/* nothing to draw? */
if( ( width <= 0 ) || ( height <= 0 ) || ( x >= buf_width )
|| ( y >= buf_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 > buf_width )
width = buf_width - x;
if( y + height > buf_height )
height = buf_height - y;
src += stride * (src_y >> 3) + src_x; /* move starting point */
src_y &= 7;
src_end = src + width;
dst = buf + y*buf_width + x;
do
{
const unsigned char *src_col = src++;
unsigned data = *src_col >> src_y;
fb_data *dst_col = dst++;
int numbits = 8 - src_y;
dst_end = dst_col + height * buf_width;
do
{
if( data & 0x01 )
*dst_col = fgcolor; /* FIXME ? */
dst_col += buf_width;
data >>= 1;
if( --numbits == 0 )
{
src_col += stride;
data = *src_col;
numbits = 8;
}
} while( dst_col < dst_end );
} while( src < src_end );
}
/* draw alpha bitmap for anti-alias font */
#define ALPHA_COLOR_FONT_DEPTH 2
#define ALPHA_COLOR_LOOKUP_SHIFT (1 << ALPHA_COLOR_FONT_DEPTH)
#define ALPHA_COLOR_LOOKUP_SIZE ((1 << ALPHA_COLOR_LOOKUP_SHIFT) - 1)
#define ALPHA_COLOR_PIXEL_PER_BYTE (8 >> ALPHA_COLOR_FONT_DEPTH)
#define ALPHA_COLOR_PIXEL_PER_WORD (32 >> ALPHA_COLOR_FONT_DEPTH)
#ifdef CPU_ARM
#define BLEND_INIT do {} while (0)
#define BLEND_START(acc, color, alpha) \
asm volatile("mul %0, %1, %2" : "=&r" (acc) : "r" (color), "r" (alpha))
#define BLEND_CONT(acc, color, alpha) \
asm volatile("mla %0, %1, %2, %0" : "+&r" (acc) : "r" (color), "r" (alpha))
#define BLEND_OUT(acc) do {} while (0)
#elif defined(CPU_COLDFIRE)
#define ALPHA_BITMAP_READ_WORDS
#define BLEND_INIT coldfire_set_macsr(EMAC_UNSIGNED)
#define BLEND_START(acc, color, alpha) \
asm volatile("mac.l %0, %1, %%acc0" :: "%d" (color), "d" (alpha))
#define BLEND_CONT BLEND_START
#define BLEND_OUT(acc) asm volatile("movclr.l %%acc0, %0" : "=d" (acc))
#else
#define BLEND_INIT do {} while (0)
#define BLEND_START(acc, color, alpha) ((acc) = (color) * (alpha))
#define BLEND_CONT(acc, color, alpha) ((acc) += (color) * (alpha))
#define BLEND_OUT(acc) do {} while (0)
#endif
/* Blend the given two colors */
static inline unsigned blend_two_colors(unsigned c1, unsigned c2, unsigned a)
{
a += a >> (ALPHA_COLOR_LOOKUP_SHIFT - 1);
#if (LCD_PIXELFORMAT == RGB565SWAPPED)
c1 = swap16(c1);
c2 = swap16(c2);
#endif
unsigned c1l = (c1 | (c1 << 16)) & 0x07e0f81f;
unsigned c2l = (c2 | (c2 << 16)) & 0x07e0f81f;
unsigned p;
BLEND_START(p, c1l, a);
BLEND_CONT(p, c2l, ALPHA_COLOR_LOOKUP_SIZE + 1 - a);
BLEND_OUT(p);
p = (p >> ALPHA_COLOR_LOOKUP_SHIFT) & 0x07e0f81f;
p |= (p >> 16);
#if (LCD_PIXELFORMAT == RGB565SWAPPED)
return swap16(p);
#else
return p;
#endif
}
static void buffer_alpha_bitmap_part(
fb_data *buf, int buf_width, int buf_height,
const unsigned char *src, int src_x, int src_y,
int stride, int x, int y, int width, int height )
{
fb_data *dst;
unsigned fg_pattern = rb->lcd_get_foreground();
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= buf_width) ||
(y >= buf_height) || (x + width <= 0) || (y + height <= 0))
return;
/* initialize blending */
BLEND_INIT;
/* clipping */
if (x < 0)
{
width += x;
src_x -= x;
x = 0;
}
if (y < 0)
{
height += y;
src_y -= y;
y = 0;
}
if (x + width > buf_width)
width = buf_width - x;
if (y + height > buf_height)
height = buf_height - y;
dst = buf + y*buf_width + x;
int col, row = height;
unsigned data, pixels;
unsigned skip_end = (stride - width);
unsigned skip_start = src_y * stride + src_x;
#ifdef ALPHA_BITMAP_READ_WORDS
uint32_t *src_w = (uint32_t *)((uintptr_t)src & ~3);
skip_start += ALPHA_COLOR_PIXEL_PER_BYTE * ((uintptr_t)src & 3);
src_w += skip_start / ALPHA_COLOR_PIXEL_PER_WORD;
data = letoh32(*src_w++);
#else
src += skip_start / ALPHA_COLOR_PIXEL_PER_BYTE;
data = *src;
#endif
pixels = skip_start % ALPHA_COLOR_PIXEL_PER_WORD;
data >>= pixels * ALPHA_COLOR_LOOKUP_SHIFT;
#ifdef ALPHA_BITMAP_READ_WORDS
pixels = 8 - pixels;
#endif
do
{
col = width;
#ifdef ALPHA_BITMAP_READ_WORDS
#define UPDATE_SRC_ALPHA do { \
if (--pixels) \
data >>= ALPHA_COLOR_LOOKUP_SHIFT; \
else \
{ \
data = letoh32(*src_w++); \
pixels = ALPHA_COLOR_PIXEL_PER_WORD; \
} \
} while (0)
#elif ALPHA_COLOR_PIXEL_PER_BYTE == 2
#define UPDATE_SRC_ALPHA do { \
if (pixels ^= 1) \
data >>= ALPHA_COLOR_LOOKUP_SHIFT; \
else \
data = *(++src); \
} while (0)
#else
#define UPDATE_SRC_ALPHA do { \
if (pixels = (++pixels % ALPHA_COLOR_PIXEL_PER_BYTE)) \
data >>= ALPHA_COLOR_LOOKUP_SHIFT; \
else \
data = *(++src); \
} while (0)
#endif
do
{
*dst=blend_two_colors(*dst, fg_pattern,
data & ALPHA_COLOR_LOOKUP_SIZE );
dst++;
UPDATE_SRC_ALPHA;
}
while (--col);
#ifdef ALPHA_BITMAP_READ_WORDS
if (skip_end < pixels)
{
pixels -= skip_end;
data >>= skip_end * ALPHA_COLOR_LOOKUP_SHIFT;
} else {
pixels = skip_end - pixels;
src_w += pixels / ALPHA_COLOR_PIXEL_PER_WORD;
pixels %= ALPHA_COLOR_PIXEL_PER_WORD;
data = letoh32(*src_w++);
data >>= pixels * ALPHA_COLOR_LOOKUP_SHIFT;
pixels = 8 - pixels;
}
#else
if (skip_end)
{
pixels += skip_end;
if (pixels >= ALPHA_COLOR_PIXEL_PER_BYTE)
{
src += pixels / ALPHA_COLOR_PIXEL_PER_BYTE;
pixels %= ALPHA_COLOR_PIXEL_PER_BYTE;
data = *src;
data >>= pixels * ALPHA_COLOR_LOOKUP_SHIFT;
} else
data >>= skip_end * ALPHA_COLOR_LOOKUP_SHIFT;
}
#endif
dst += LCD_WIDTH - width;
} while (--row);
}
static void buffer_putsxyofs( fb_data *buf, int buf_width, int buf_height,
int x, int y, int ofs, const unsigned char *str )
{
unsigned short ch;
unsigned short *ucs;
struct font *pf = rb->font_get( FONT_UI );
if( !pf ) pf = rb->font_get( FONT_SYSFIXED );
ucs = rb->bidi_l2v( str, 1 );
while( (ch = *ucs++) != 0 && x < buf_width )
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = rb->font_get_width( pf, ch );
if( ofs > width )
{
ofs -= width;
continue;
}
bits = rb->font_get_bits( pf, ch );
if (pf->depth)
buffer_alpha_bitmap_part( buf, buf_width, buf_height, bits, ofs, 0,
width, x, y, width - ofs, pf->height);
else
buffer_mono_bitmap_part( buf, buf_width, buf_height, bits, ofs, 0,
width, x, y, width - ofs, pf->height);
x += width - ofs;
ofs = 0;
}
}
/***********************************************************************
* Menu handling
***********************************************************************/
enum {
/* Main menu */
MAIN_MENU_RESUME,
MAIN_MENU_NEW, MAIN_MENU_LOAD, MAIN_MENU_SAVE,
MAIN_MENU_SET_WIDTH, MAIN_MENU_SET_HEIGHT,
MAIN_MENU_BRUSH_SIZE, MAIN_MENU_BRUSH_SPEED, MAIN_MENU_COLOR,
MAIN_MENU_GRID_SIZE,
MAIN_MENU_PLAYBACK_CONTROL,
MAIN_MENU_EXIT,
};
enum {
/* Select action menu */
SELECT_MENU_CUT, SELECT_MENU_COPY,
SELECT_MENU_INVERT, SELECT_MENU_HFLIP, SELECT_MENU_VFLIP,
SELECT_MENU_ROTATE90, SELECT_MENU_ROTATE180, SELECT_MENU_ROTATE270,
SELECT_MENU_CANCEL,
};
enum {
/* Text menu */
TEXT_MENU_TEXT, TEXT_MENU_FONT,
TEXT_MENU_PREVIEW, TEXT_MENU_APPLY, TEXT_MENU_CANCEL,
};
MENUITEM_STRINGLIST(main_menu, "RockPaint", NULL,
"Resume", "New", "Load", "Save",
"Set Width", "Set Height",
"Brush Size", "Brush Speed",
"Choose Color", "Grid Size",
"Playback Control", "Exit");
MENUITEM_STRINGLIST(select_menu, "Select...", NULL,
"Cut", "Copy",
"Invert", "Horizontal Flip", "Vertical Flip",
"Rotate 90°", "Rotate 180°", "Rotate 270°",
"Cancel");
MENUITEM_STRINGLIST(text_menu, "Text", NULL,
"Set Text", "Change Font",
"Preview", "Apply", "Cancel");
static const int times_list[] = { 1, 2, 4, 8 };
static const int gridsize_list[] = { 0, 5, 10, 20 };
static const struct opt_items times_options[] = {
{ "1x", -1 }, { "2x", -1 }, { "4x", -1 }, { "8x", -1 }
};
static const struct opt_items gridsize_options[] = {
{ "No grid", -1 }, { "5px", -1 }, { "10px", -1 }, { "20px", -1 }
};
static int draw_window( int height, int width,
int *top, int *left,
const char *title )
{
int fh;
rb->lcd_getstringsize( title, NULL, &fh );
fh++;
const int _top = ( LCD_HEIGHT - height ) / 2;
const int _left = ( LCD_WIDTH - width ) / 2;
if( top ) *top = _top;
if( left ) *left = _left;
rb->lcd_set_background(COLOR_BLUE);
rb->lcd_set_foreground(COLOR_LIGHTGRAY);
rb->lcd_fillrect( _left, _top, width, height );
rb->lcd_set_foreground(COLOR_BLUE);
rb->lcd_fillrect( _left, _top, width, fh+4 );
rb->lcd_set_foreground(COLOR_WHITE);
rb->lcd_putsxy( _left+2, _top+2, title );
rb->lcd_set_foreground(COLOR_BLACK);
rb->lcd_drawrect( _left, _top, width, height );
return _top+fh+4;
}
/***********************************************************************
* File browser
***********************************************************************/
char bbuf[MAX_PATH]; /* used by file and font browsers */
char bbuf_s[MAX_PATH]; /* used by file and font browsers */
struct tree_context *tree = NULL;
static bool check_extention(const char *filename, const char *ext)
{
const char *p = rb->strrchr( filename, '.' );
return ( p != NULL && !rb->strcasecmp( p, ext ) );
}
/* only displayes directories and .bmp files */
static bool callback_show_item(char *name, int attr, struct tree_context *tc)
{
(void) tc;
if( ( attr & ATTR_DIRECTORY ) ||
( !(attr & ATTR_DIRECTORY) && check_extention( name, ".bmp" ) ) )
{
return true;
}
return false;
}
static bool browse( char *dst, int dst_size, const char *start )
{
struct browse_context browse;
rb->browse_context_init(&browse, SHOW_ALL,
BROWSE_SELECTONLY|BROWSE_NO_CONTEXT_MENU,
NULL, NOICON, start, NULL);
browse.callback_show_item = callback_show_item;
browse.buf = dst;
browse.bufsize = dst_size;
rb->rockbox_browse(&browse);
return (browse.flags & BROWSE_SELECTED);
}
/***********************************************************************
* Font browser
*
* FIXME: This still needs some work ... it currently only works fine
* on the simulators, disk spins too much on real targets -> rendered
* font buffer needed.
***********************************************************************/
/*
* cache font preview handling assumes:
* - fvi doesn't decrease by more than 1.
* In other words, cache_first-1 must be cached before cache_first-2 is cached.
* - there is enough space to store all preview currently displayed.
*/
static bool browse_fonts( char *dst, int dst_size )
{
#define LINE_SPACE 2
#define PREVIEW_SIZE(x) ((x)->size)
#define PREVIEW_NEXT(x) (struct font_preview *)((char*)(x) + PREVIEW_SIZE(x))
struct tree_context backup;
struct entry *dc, *e;
int dirfilter = SHOW_FONT;
struct font_preview {
unsigned short width;
unsigned short height;
size_t size; /* to avoid calculating size each time. */
fb_data preview[0];
} *font_preview = NULL;
int top = 0;
int fvi = 0; /* first visible item */
int lvi = 0; /* last visible item */
int si = 0; /* selected item */
int li = 0; /* last item */
int nvih = 0; /* next visible item height */
int i;
bool need_redraw = true; /* Do we need to redraw ? */
bool reset_font = false;
bool ret = false;
int cp = 0; /* current position */
int sp = 0; /* selected position */
int fh, fw; /* font height, width */
unsigned char *cache = (unsigned char *) buffer + sizeof(buffer->text);
size_t cache_size = sizeof(*buffer) - sizeof(buffer->text);
size_t cache_used = 0;
int cache_first = 0, cache_last = -1;
char *a;
rb->snprintf( bbuf_s, MAX_PATH, FONT_DIR "/%s.fnt",
rb->global_settings->font_file );
tree = rb->tree_get_context();
backup = *tree;
dc = tree->dircache;
a = backup.currdir+rb->strlen(backup.currdir)-1;
if( *a != '/' )
{
*++a = '/';
}
rb->strcpy( a+1, dc[tree->selected_item].name );
tree->dirfilter = &dirfilter;
tree->browse = NULL;
rb->strcpy( bbuf, FONT_DIR "/" );
rb->set_current_file( bbuf );
if( buffer->text.initialized )
{
cache_used = buffer->text.cache_used;
cache_first = buffer->text.cache_first;
cache_last = buffer->text.cache_last;
fvi = buffer->text.fvi;
si = buffer->text.si;
}
buffer->text.initialized = true;
while( 1 )
{
if( !need_redraw )
{
/* we don't need to redraw ... but we need to unselect
* the previously selected item */
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
rb->lcd_fillrect( 10, sp, LCD_WIDTH-10, font_preview->height );
rb->lcd_set_drawmode(DRMODE_SOLID);
}
if( need_redraw )
{
need_redraw = false;
rb->lcd_set_foreground(COLOR_BLACK);
rb->lcd_set_background(COLOR_LIGHTGRAY);
rb->lcd_clear_display();
rb->font_getstringsize( "Fonts", NULL, &fh, FONT_UI );
rb->lcd_putsxy( 2, 2, "Fonts" );
top = fh + 4 + LINE_SPACE;
font_preview = (struct font_preview *) cache;
/* get first font preview to be displayed. */
for( i = cache_first; i < cache_last && i < fvi; i++ )
{
font_preview = PREVIEW_NEXT(font_preview);
}
for( ; fvi < lvi && nvih > 0; fvi++ )
{
nvih -= font_preview->height + LINE_SPACE;
font_preview = PREVIEW_NEXT(font_preview);
}
nvih = 0;
i = fvi;
cp = top;
while( cp <= LCD_HEIGHT+LINE_SPACE && i < tree->filesindir )
{
e = &dc[i];
if( i < cache_first || i > cache_last )
{
size_t siz;
reset_font = true;
rb->snprintf( bbuf, MAX_PATH, FONT_DIR "/%s", e->name );
rb->font_load(NULL, bbuf );
rb->font_getstringsize( e->name, &fw, &fh, FONT_UI );
if( fw > LCD_WIDTH ) fw = LCD_WIDTH;
siz = (sizeof(struct font_preview) + fw*fh*FB_DATA_SZ+3) & ~3;
if( i < cache_first )
{
/* insert font preview to the top. */
cache_used = 0;
for( ; cache_first <= cache_last; cache_first++ )
{
font_preview = (struct font_preview *) (cache + cache_used);
size_t size = PREVIEW_SIZE(font_preview);
if( cache_used + size >= cache_size - siz )
break;
cache_used += size;
}
cache_last = cache_first-1;
cache_first = i;
rb->memmove( cache+siz, cache, cache_used );
font_preview = (struct font_preview *) cache;
}
else /* i > cache_last */
{
/* add font preview to the bottom. */
font_preview = (struct font_preview *) cache;
while( cache_used >= cache_size - siz )
{
cache_used -= PREVIEW_SIZE(font_preview);
font_preview = PREVIEW_NEXT(font_preview);
cache_first++;
}
cache_last = i;
rb->memmove( cache, font_preview, cache_used );
font_preview = (struct font_preview *) (cache + cache_used);
}
cache_used += siz;
/* create preview cache. */
font_preview->width = fw;
font_preview->height = fh;
font_preview->size = siz;
/* clear with background. */
for( siz = fw*fh; siz > 0; )
{
font_preview->preview[--siz] = COLOR_LIGHTGRAY;
}
buffer_putsxyofs( font_preview->preview,
fw, fh, 0, 0, 0, e->name );
}
else
{
fw = font_preview->width;
fh = font_preview->height;
}
if( cp + fh >= LCD_HEIGHT )
{
nvih = fh;
break;
}
rb->lcd_bitmap( font_preview->preview, 10, cp, fw, fh );
cp += fh + LINE_SPACE;
i++;
font_preview = PREVIEW_NEXT(font_preview);
}
lvi = i-1;
li = tree->filesindir-1;
if( reset_font )
{
rb->font_load(NULL, bbuf_s );
reset_font = false;
}
if( lvi-fvi+1 < tree->filesindir )
{
rb->gui_scrollbar_draw( rb->screens[SCREEN_MAIN], 0, top,
9, LCD_HEIGHT-top,
tree->filesindir, fvi, lvi+1, VERTICAL );
}
}
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
sp = top;
font_preview = (struct font_preview *) cache;
for( i = cache_first; i < si; i++ )
{
if( i >= fvi )
sp += font_preview->height + LINE_SPACE;
font_preview = PREVIEW_NEXT(font_preview);
}
rb->lcd_fillrect( 10, sp, LCD_WIDTH-10, font_preview->height );
rb->lcd_set_drawmode(DRMODE_SOLID);
rb->lcd_update();
switch( rb->button_get(true) )
{
case ROCKPAINT_UP:
case ROCKPAINT_UP|BUTTON_REPEAT:
if( si > 0 )
{
si--;
if( si < fvi )
{
fvi = si;
nvih = 0;
need_redraw = true;
}
}
break;
case ROCKPAINT_DOWN:
case ROCKPAINT_DOWN|BUTTON_REPEAT:
if( si < li )
{
si++;
if( si > lvi )
{
need_redraw = true;
}
}
break;
case ROCKPAINT_RIGHT:
case ROCKPAINT_DRAW:
ret = true;
rb->snprintf( dst, dst_size, FONT_DIR "/%s", dc[si].name );
/* fall through */
case ROCKPAINT_LEFT:
case ROCKPAINT_QUIT:
buffer->text.cache_used = cache_used;
buffer->text.cache_first = cache_first;
buffer->text.cache_last = cache_last;
buffer->text.fvi = fvi;
buffer->text.si = si;
*tree = backup;
rb->set_current_file( backup.currdir );
return ret;
}
}
#undef LINE_SPACE
#undef PREVIEW_SIZE
#undef PREVIEW_NEXT
}
/***********************************************************************
* HSVRGB Color chooser
***********************************************************************/
static unsigned int color_chooser( unsigned int color )
{
int red = RGB_UNPACK_RED( color );
int green = RGB_UNPACK_GREEN( color );
int blue = RGB_UNPACK_BLUE( color );
int hue, saturation, value;
int r, g, b; /* temp variables */
int i, top, left;
int button;
int *pval;
static struct incdec_ctx ctxs[] = {
{ 3600, { 10, 100}, true }, /* hue */
{ 0xff, { 1, 8}, false }, /* the others */
};
enum BaseColor { Hue = 0, Saturation = 1, Value = 2,
Red = 3, Green = 4, Blue = 5 };
enum BaseColor current = Red;
bool has_changed;
restore_screen();
rgb2hsv( red, green, blue, &hue, &saturation, &value );
while( 1 )
{
has_changed = false;
color = LCD_RGBPACK( red, green, blue );
#define HEIGHT ( 100 )
#define WIDTH ( 150 )
top = draw_window( HEIGHT, WIDTH, NULL, &left, "Color chooser" );
top -= 15;
for( i=0; i<100; i++ )
{
hsv2rgb( i*36, saturation, value, &r, &g, &b );
rb->lcd_set_foreground( LCD_RGBPACK( r, g, b ) );
rb->lcd_vline( left+15+i, top+20, top+27 );
hsv2rgb( hue, i*255/100, value, &r, &g, &b );
rb->lcd_set_foreground( LCD_RGBPACK( r, g, b ) );
rb->lcd_vline( left+15+i, top+30, top+37 );
hsv2rgb( hue, saturation, i*255/100, &r, &g, &b );
rb->lcd_set_foreground( LCD_RGBPACK( r, g, b ) );
rb->lcd_vline( left+15+i, top+40, top+47 );
rb->lcd_set_foreground( LCD_RGBPACK( i*255/100, green, blue ) );
rb->lcd_vline( left+15+i, top+50, top+57 );
rb->lcd_set_foreground( LCD_RGBPACK( red, i*255/100, blue ) );
rb->lcd_vline( left+15+i, top+60, top+67 );
rb->lcd_set_foreground( LCD_RGBPACK( red, green, i*255/100 ) );
rb->lcd_vline( left+15+i, top+70, top+77 );
}
rb->lcd_set_foreground(COLOR_BLACK);
#define POSITION( a, i ) \
rb->lcd_drawpixel( left+14+i, top + 19 + a ); \
rb->lcd_drawpixel( left+16+i, top + 19 + a ); \
rb->lcd_drawpixel( left+14+i, top + 28 + a ); \
rb->lcd_drawpixel( left+16+i, top + 28 + a );
POSITION( 0, hue/36 );
POSITION( 10, saturation*99/255 );
POSITION( 20, value*99/255 );
POSITION( 30, red*99/255 );
POSITION( 40, green*99/255 );
POSITION( 50, blue*99/255 );
#undef POSITION
rb->lcd_set_background(COLOR_LIGHTGRAY);
rb->lcd_setfont( FONT_SYSFIXED );
rb->lcd_putsxyf( left + 117, top + 20, "%d", hue/10 );
rb->lcd_putsxyf( left + 117, top + 30, "%d.%d",
saturation/255, ((saturation*100)/255)%100 );
rb->lcd_putsxyf( left + 117, top + 40, "%d.%d",
value/255, ((value*100)/255)%100 );
rb->lcd_putsxyf( left + 117, top + 50, "%d", red );
rb->lcd_putsxyf( left + 117, top + 60, "%d", green );
rb->lcd_putsxyf( left + 117, top + 70, "%d", blue );
rb->lcd_setfont( FONT_UI );
#define CURSOR( l ) \
rb->lcd_bitmap_transparent_part( rockpaint_hsvrgb, 1, 1, 16, left+l+1, top+20, 6, 58 ); \
rb->lcd_bitmap_transparent_part( rockpaint_hsvrgb, 8, 10*current, 16, left+l, top+19+10*current, 8, 10 );
CURSOR( 5 );
#undef CURSOR
rb->lcd_set_foreground( color );
rb->lcd_fillrect( left+15, top+85, 100, 8 );
rb->lcd_update();
switch( button = rb->button_get(true) )
{
case ROCKPAINT_UP:
current = ( current + 5 )%6;
break;
case ROCKPAINT_DOWN:
current = ( current + 1 )%6;
break;
case ROCKPAINT_LEFT:
case ROCKPAINT_LEFT|BUTTON_REPEAT:
case ROCKPAINT_RIGHT:
case ROCKPAINT_RIGHT|BUTTON_REPEAT:
has_changed = true;
switch( current )
{
case Hue:
pval = &hue;
break;
case Saturation:
pval = &saturation;
break;
case Value:
pval = &value;
break;
case Red:
pval = &red;
break;
case Green:
pval = &green;
break;
case Blue:
pval = &blue;
break;
default:
pval = NULL;
break;
}
if (pval)
{
incdec_value(pval, &ctxs[(current != Hue? 1: 0)],
(button&ROCKPAINT_RIGHT), (button&BUTTON_REPEAT));
}
break;
case ROCKPAINT_DRAW:
return color;
}
if( has_changed )
{
switch( current )
{
case Hue:
case Saturation:
case Value:
hsv2rgb( hue, saturation, value, &red, &green, &blue );
break;
case Red:
case Green:
case Blue:
rgb2hsv( red, green, blue, &hue, &saturation, &value );
break;
}
}
#undef HEIGHT
#undef WIDTH
}
}
/***********************************************************************
* Misc routines
***********************************************************************/
static void init_buffer(void)
{
int i;
fb_data color = rp_colors[ bgdrawcolor ];
for( i = 0; i < ROWS*COLS; i++ )
{
save_buffer[i] = color;
}
}
static void draw_pixel(int x,int y)
{
if( !preview )
{
if( x < 0 || x >= COLS || y < 0 || y >= ROWS ) return;
if( isbg )
{
save_buffer[ x+y*COLS ] = rp_colors[bgdrawcolor];
}
else
{
save_buffer[ x+y*COLS ] = rp_colors[drawcolor];
}
}
rb->lcd_drawpixel(x,y);
}
static void color_picker( int x, int y )
{
if( preview )
{
rb->lcd_set_foreground( save_buffer[ x+y*COLS ] );
#define PSIZE 12
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
if( x >= COLS - PSIZE ) x -= PSIZE + 2;
if( y >= ROWS - PSIZE ) y -= PSIZE + 2;
rb->lcd_drawrect( x + 2, y + 2, PSIZE - 2, PSIZE - 2 );
rb->lcd_set_drawmode(DRMODE_SOLID);
rb->lcd_fillrect( x + 3, y + 3, PSIZE - 4, PSIZE - 4 );
#undef PSIZE
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
}
else
{
rp_colors[ drawcolor ] = save_buffer[ x+y*COLS ];
}
}
static void draw_select_rectangle( int x1, int y1, int x2, int y2 )
/* This is a preview mode only function */
{
int i,a;
if( x1 > x2 )
{
i = x1;
x1 = x2;
x2 = i;
}
if( y1 > y2 )
{
i = y1;
y1 = y2;
y2 = i;
}
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
i = 0;
for( a = x1; a < x2; a++, i++ )
if( i%2 )
rb->lcd_drawpixel( a, y1 );
for( a = y1; a < y2; a++, i++ )
if( i%2 )
rb->lcd_drawpixel( x2, a );
if( y2 != y1 )
for( a = x2; a > x1; a--, i++ )
if( i%2 )
rb->lcd_drawpixel( a, y2 );
if( x2 != x1 )
for( a = y2; a > y1; a--, i++ )
if( i%2 )
rb->lcd_drawpixel( x1, a );
rb->lcd_set_drawmode(DRMODE_SOLID);
}
static void copy_to_clipboard( void )
{
/* This needs to be optimised ... but i'm lazy ATM */
rb->memcpy( buffer->clipboard, save_buffer, COLS*ROWS*sizeof( fb_data ) );
}
/* no preview mode handling atm ... do we need it ? (one if) */
static void draw_invert( int x1, int y1, int x2, int y2 )
{
int i;
if( x1 > x2 )
{
i = x1;
x1 = x2;
x2 = i;
}
if( y1 > y2 )
{
i = y1;
y1 = y2;
y2 = i;
}
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
rb->lcd_fillrect( x1, y1, x2-x1+1, y2-y1+1 );
rb->lcd_set_drawmode(DRMODE_SOLID);
for( ; y1<=y2; y1++ )
{
for( i = x1; i<=x2; i++ )
{
save_buffer[ y1*COLS + i ] = ~save_buffer[ y1*COLS + i ];
}
}
/*if( update )*/ rb->lcd_update();
}
static void draw_hflip( int x1, int y1, int x2, int y2 )
{
int i;
if( x1 > x2 )
{
i = x1;
x1 = x2;
x2 = i;
}
if( y1 > y2 )
{
i = y1;
y1 = y2;
y2 = i;
}
copy_to_clipboard();
for( i = 0; i <= y2 - y1; i++ )
{
rb->memcpy( save_buffer+(y1+i)*COLS+x1,
buffer->clipboard+(y2-i)*COLS+x1,
(x2-x1+1)*sizeof( fb_data ) );
}
restore_screen();
rb->lcd_update();
}
static void draw_vflip( int x1, int y1, int x2, int y2 )
{
int i;
if( x1 > x2 )
{
i = x1;
x1 = x2;
x2 = i;
}
if( y1 > y2 )
{
i = y1;
y1 = y2;
y2 = i;
}
copy_to_clipboard();
for( ; y1 <= y2; y1++ )
{
for( i = 0; i <= x2 - x1; i++ )
{
save_buffer[y1*COLS+x1+i] = buffer->clipboard[y1*COLS+x2-i];
}
}
restore_screen();
rb->lcd_update();
}
/* direction: -1 = left, 1 = right */
static void draw_rot_90_deg( int x1, int y1, int x2, int y2, int direction )
{
int i, j;
if( x1 > x2 )
{
i = x1;
x1 = x2;
x2 = i;
}
if( y1 > y2 )
{
i = y1;
y1 = y2;
y2 = i;
}
copy_to_clipboard();
fb_data color = rp_colors[ bgdrawcolor ];
const int width = x2 - x1, height = y2 - y1;
const int sub_half = width/2-height/2, add_half = (width+height)/2;
if( width > height )
{
for( i = 0; i <= height; i++ )
{
for( j = 0; j < sub_half; j++ )
save_buffer[(y1+i)*COLS+x1+j] = color;
for( j = add_half+1; j <= width; j++ )
save_buffer[(y1+i)*COLS+x1+j] = color;
}
}
else if( width < height )
{
for( j = 0; j <= width; j++ )
{
for( i = 0; i < -sub_half; i++ )
save_buffer[(y1+i)*COLS+x1+j] = color;
for( i = add_half+1; i <= height; i++ )
save_buffer[(y1+i)*COLS+x1+j] = color;
}
}
int x3 = x1 + sub_half, y3 = y1 - sub_half;
int is = x3<0?-x3:0, ie = COLS-x3-1, js = y3<0?-y3:0, je = ROWS-y3-1;
if( ie > height ) ie = height;
if( je > width ) je = width;
for( i = is; i <= ie; i++ )
{
for( j = js; j <= je; j++ )
{
int x, y;
if(direction > 0)
{
x = x1+j;
y = y1+height-i;
}
else
{
x = x1+width-j;
y = y1+i;
}
save_buffer[(y3+j)*COLS+x3+i] = buffer->clipboard[y*COLS+x];
}
}
restore_screen();
rb->lcd_update();
}
static void draw_paste_rectangle( int src_x1, int src_y1, int src_x2,
int src_y2, int x1, int y1, int cut )
{
int i, width, height;
if( cut )
{
i = drawcolor;
drawcolor = bgdrawcolor;
draw_rect_full( src_x1, src_y1, src_x2, src_y2 );
drawcolor = i;
}
if( src_x1 > src_x2 )
{
i = src_x1;
src_x1 = src_x2;
src_x2 = i;
}
if( src_y1 > src_y2 )
{
i = src_y1;
src_y1 = src_y2;
src_y2 = i;
}
width = src_x2 - src_x1 + 1;
height = src_y2 - src_y1 + 1;
/* clipping */
if( x1 + width > COLS )
width = COLS - x1;
if( y1 + height > ROWS )
height = ROWS - y1;
rb->lcd_bitmap_part( buffer->clipboard, src_x1, src_y1, COLS,
x1, y1, width, height );
if( !preview )
{
for( i = 0; i < height; i++ )
{
rb->memcpy( save_buffer+(y1+i)*COLS+x1,
buffer->clipboard+(src_y1+i)*COLS+src_x1,
width*sizeof( fb_data ) );
}
}
}
static void show_grid( bool update )
{
int i;
if( gridsize > 0 )
{
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
for( i = gridsize; i < img_width; i+= gridsize )
{
rb->lcd_vline( i, 0, img_height-1 );
}
for( i = gridsize; i < img_height; i+= gridsize )
{
rb->lcd_hline( 0, img_width-1, i );
}
rb->lcd_set_drawmode(DRMODE_SOLID);
if( update ) rb->lcd_update();
}
}
static void draw_text( int x, int y )
{
int selected = 0;
buffer->text.text[0] = '\0';
buffer->text.font[0] = '\0';
while( 1 )
{
switch( rb->do_menu( &text_menu, &selected, NULL, NULL ) )
{
case TEXT_MENU_TEXT:
rb->lcd_set_foreground(COLOR_BLACK);
rb->kbd_input( buffer->text.text, MAX_TEXT );
break;
case TEXT_MENU_FONT:
if( browse_fonts( buffer->text.font, MAX_PATH ) )
{
rb->font_load(NULL, buffer->text.font );
}
break;
case TEXT_MENU_PREVIEW:
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
while( 1 )
{
int button;
restore_screen();
rb->lcd_putsxy( x, y, buffer->text.text );
rb->lcd_update();
switch( button = rb->button_get( true ) )
{
case ROCKPAINT_LEFT:
case ROCKPAINT_LEFT | BUTTON_REPEAT:
case ROCKPAINT_RIGHT:
case ROCKPAINT_RIGHT | BUTTON_REPEAT:
incdec_value(&x, &incdec_x,
(button&ROCKPAINT_RIGHT), (button&BUTTON_REPEAT));
break;
case ROCKPAINT_UP:
case ROCKPAINT_UP | BUTTON_REPEAT:
case ROCKPAINT_DOWN:
case ROCKPAINT_DOWN | BUTTON_REPEAT:
incdec_value(&y, &incdec_y,
(button&ROCKPAINT_DOWN), (button&BUTTON_REPEAT));
break;
case ROCKPAINT_DRAW:
break;
default:
if(rb->default_event_handler(button)
== SYS_USB_CONNECTED)
button = ROCKPAINT_DRAW;
break;
}
if( button == ROCKPAINT_DRAW ) break;
}
break;
case TEXT_MENU_APPLY:
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
buffer_putsxyofs( save_buffer, COLS, ROWS, x, y, 0,
buffer->text.text );
case TEXT_MENU_CANCEL:
default:
restore_screen();
if( buffer->text.font[0] )
{
rb->snprintf( buffer->text.font, MAX_PATH,
FONT_DIR "/%s.fnt",
rb->global_settings->font_file );
rb->font_load(NULL, buffer->text.font );
}
return;
}
}
}
static void draw_brush( int x, int y )
{
int i,j;
for( i=-bsize/2+(bsize+1)%2; i<=bsize/2; i++ )
{
for( j=-bsize/2+(bsize+1)%2; j<=bsize/2; j++ )
{
draw_pixel( x+i, y+j );
}
}
}
/* This is an implementation of Bresenham's line algorithm.
* See http://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm.
*/
static void draw_line( int x1, int y1, int x2, int y2 )
{
int x = x1;
int y = y1;
int deltax = x2 - x1;
int deltay = y2 - y1;
int i;
int xerr = abs(deltax);
int yerr = abs(deltay);
int xstep = deltax > 0 ? 1 : -1;
int ystep = deltay > 0 ? 1 : -1;
int err;
if (yerr > xerr)
{
/* more vertical */
err = yerr;
xerr <<= 1;
yerr <<= 1;
/* to leave off the last pixel of the line, leave off the "+ 1" */
for (i = err + 1; i; --i)
{
draw_pixel(x, y);
y += ystep;
err -= xerr;
if (err < 0) {
x += xstep;
err += yerr;
}
}
}
else
{
/* more horizontal */
err = xerr;
xerr <<= 1;
yerr <<= 1;
for (i = err + 1; i; --i)
{
draw_pixel(x, y);
x += xstep;
err -= yerr;
if (err < 0) {
y += ystep;
err += xerr;
}
}
}
}
static void draw_curve( int x1, int y1, int x2, int y2,
int xa, int ya, int xb, int yb )
{
int i = 0;
short xl1, yl1;
short xl2, yl2;
short xl3, yl3;
short xl4, yl4;
short xr1, yr1;
short xr2, yr2;
short xr3, yr3;
short xr4, yr4;
short depth;
short xh, yh;
if( x1 == x2 && y1 == y2 )
{
draw_pixel( x1, y1 );
return;
}
// if( preview )
{
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
if( xa == -1 || ya == -1 )
{
rb->lcd_drawline( x1, y1, xb, yb );
rb->lcd_drawline( x2, y2, xb, yb );
}
else
{
rb->lcd_drawline( x1, y1, xa, ya );
rb->lcd_drawline( x2, y2, xb, yb );
}
rb->lcd_set_drawmode(DRMODE_SOLID);
}
if( xa == -1 || ya == -1 )
/* We only have 3 of the points
* This will currently only be used in preview mode */
{
#define PUSH( a1, b1, a2, b2, a3, b3, d ) \
buffer->bezier[i].x1 = a1; \
buffer->bezier[i].y1 = b1; \
buffer->bezier[i].x2 = a2; \
buffer->bezier[i].y2 = b2; \
buffer->bezier[i].x3 = a3; \
buffer->bezier[i].y3 = b3; \
buffer->bezier[i].depth = d; \
i++;
#define POP( a1, b1, a2, b2, a3, b3, d ) \
i--; \
a1 = buffer->bezier[i].x1; \
b1 = buffer->bezier[i].y1; \
a2 = buffer->bezier[i].x2; \
b2 = buffer->bezier[i].y2; \
a3 = buffer->bezier[i].x3; \
b3 = buffer->bezier[i].y3; \
d = buffer->bezier[i].depth;
PUSH( x1<<4, y1<<4, xb<<4, yb<<4, x2<<4, y2<<4, 0 );
while( i )
{
/* de Casteljau's algorithm (see wikipedia) */
POP( xl1, yl1, xb, yb, xr3, yr3, depth );
if( depth < 10 ) /* check that the stack's 'i' doesn't overflow */
{
xl2 = ( xl1 + xb )>>1;
yl2 = ( yl1 + yb )>>1;
xr2 = ( xb + xr3 )>>1;
yr2 = ( yb + yr3 )>>1;
xr1 = ( xl2 + xr2 )>>1;
yr1 = ( yl2 + yr2 )>>1;
xl3 = xr1;
yl3 = yr1;
PUSH( xl1, yl1, xl2, yl2, xl3, yl3, depth+1 );
PUSH( xr1, yr1, xr2, yr2, xr3, yr3, depth+1 );
}
else
{
draw_line( ((xl1>>3)+1)>>1, ((yl1>>3)+1)>>1,
((xr3>>3)+1)>>1, ((yr3>>3)+1)>>1 );
}
}
#undef PUSH
#undef POP
}
else /* We have the 4 points */
{
#define PUSH( a1, b1, a2, b2, a3, b3, a4, b4, d ) \
buffer->bezier[i].x1 = a1; \
buffer->bezier[i].y1 = b1; \
buffer->bezier[i].x2 = a2; \
buffer->bezier[i].y2 = b2; \
buffer->bezier[i].x3 = a3; \
buffer->bezier[i].y3 = b3; \
buffer->bezier[i].x4 = a4; \
buffer->bezier[i].y4 = b4; \
buffer->bezier[i].depth = d; \
i++;
#define POP( a1, b1, a2, b2, a3, b3, a4, b4, d ) \
i--; \
a1 = buffer->bezier[i].x1; \
b1 = buffer->bezier[i].y1; \
a2 = buffer->bezier[i].x2; \
b2 = buffer->bezier[i].y2; \
a3 = buffer->bezier[i].x3; \
b3 = buffer->bezier[i].y3; \
a4 = buffer->bezier[i].x4; \
b4 = buffer->bezier[i].y4; \
d = buffer->bezier[i].depth;
PUSH( x1<<4, y1<<4, xa<<4, ya<<4, xb<<4, yb<<4, x2<<4, y2<<4, 0 );
while( i )
{
/* de Casteljau's algorithm (see wikipedia) */
POP( xl1, yl1, xa, ya, xb, yb, xr4, yr4, depth );
if( depth < 10 ) /* check that the stack's 'i' doesn't overflow */
{
xl2 = ( xl1 + xa )>>1;
yl2 = ( yl1 + ya )>>1;
xh = ( xa + xb )>>1;
yh = ( ya + yb )>>1;
xr3 = ( xb + xr4 )>>1;
yr3 = ( yb + yr4 )>>1;
xl3 = ( xl2 + xh )>>1;
yl3 = ( yl2 + yh )>>1;
xr2 = ( xr3 + xh )>>1;
yr2 = ( yr3 + yh )>>1;
xl4 = ( xl3 + xr2 )>>1;
yl4 = ( yl3 + yr2 )>>1;
xr1 = xl4;
yr1 = yl4;
PUSH( xl1, yl1, xl2, yl2, xl3, yl3, xl4, yl4, depth+1 );
PUSH( xr1, yr1, xr2, yr2, xr3, yr3, xr4, yr4, depth+1 );
}
else
{
draw_line( ((xl1>>3)+1)>>1, ((yl1>>3)+1)>>1,
((xr4>>3)+1)>>1, ((yr4>>3)+1)>>1 );
}
}
#undef PUSH
#undef POP
}
}
static void draw_rect( int x1, int y1, int x2, int y2 )
{
draw_line( x1, y1, x1, y2 );
draw_line( x1, y1, x2, y1 );
draw_line( x1, y2, x2, y2 );
draw_line( x2, y1, x2, y2 );
}
static void togglebg( void )
{
if( isbg )
{
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
}
else
{
rb->lcd_set_foreground( rp_colors[ bgdrawcolor ] );
}
isbg = !isbg;
}
static void draw_rect_full( int x1, int y1, int x2, int y2 )
{
/* GRUIK */
int x;
togglebg();
if( x1 > x2 )
{
x = x1;
x1 = x2;
x2 = x;
}
x = x1;
do {
draw_line( x, y1, x, y2 );
} while( ++x <= x2 );
togglebg();
draw_rect( x1, y1, x2, y2 );
}
static void draw_oval( int x1, int y1, int x2, int y2, bool full )
{
/* TODO: simplify :) */
int cx = (x1+x2)>>1;
int cy = (y1+y2)>>1;
int rx = (x1-x2)>>1;
int ry = (y1-y2)>>1;
if( rx < 0 ) rx *= -1;
if( ry < 0 ) ry *= -1;
if( rx == 0 || ry == 0 )
{
draw_line( x1, y1, x2, y2 );
return;
}
int x,y;
int dst, old_dst;
for( x = 0; x < rx; x++ )
{
y = 0;
dst = -0xfff;
do {
old_dst = dst;
dst = ry * ry * x * x + rx * rx * y * y - rx * rx * ry * ry;
y++;
} while( dst < 0 );
if( -old_dst < dst ) y--;
if( full )
{
draw_line( cx+x, cy, cx+x, cy+y );
draw_line( cx+x, cy, cx+x, cy-y );
draw_line( cx-x, cy, cx-x, cy+y );
draw_line( cx-x, cy, cx-x, cy-y );
}
else
{
draw_pixel( cx+x, cy+y );
draw_pixel( cx+x, cy-y );
draw_pixel( cx-x, cy+y );
draw_pixel( cx-x, cy-y );
}
}
for( y = 0; y < ry; y++ )
{
x = 0;
dst = -0xfff;
do {
old_dst = dst;
dst = ry * ry * x * x + rx * rx * y * y - rx * rx * ry * ry;
x++;
} while( dst < 0 );
if( -old_dst < dst ) x--;
if( full )
{
draw_line( cx+x, cy, cx+x, cy+y );
draw_line( cx+x, cy, cx+x, cy-y );
draw_line( cx-x, cy, cx-x, cy+y );
draw_line( cx-x, cy, cx-x, cy-y );
}
else
{
draw_pixel( cx+x, cy+y );
draw_pixel( cx+x, cy-y );
draw_pixel( cx-x, cy+y );
draw_pixel( cx-x, cy-y );
}
}
}
static void draw_oval_empty( int x1, int y1, int x2, int y2 )
{
draw_oval( x1, y1, x2, y2, false );
}
static void draw_oval_full( int x1, int y1, int x2, int y2 )
{
togglebg();
draw_oval( x1, y1, x2, y2, true );
togglebg();
draw_oval( x1, y1, x2, y2, false );
}
static void draw_fill( int x0, int y0 )
{
#define PUSH( a, b ) \
draw_pixel( (int)a, (int)b ); \
buffer->coord[i].x = a; \
buffer->coord[i].y = b; \
i++;
#define POP( a, b ) \
i--; \
a = buffer->coord[i].x; \
b = buffer->coord[i].y;
unsigned int i=0;
short x = x0;
short y = y0;
unsigned int prev_color = save_buffer[ x0+y0*COLS ];
if( preview )
return;
if( prev_color == rp_colors[ drawcolor ] ) return;
PUSH( x, y );
while( i != 0 )
{
POP( x, y );
if( x > 0 && save_buffer[x-1+y*COLS] == prev_color )
{
PUSH( x-1, y );
}
if( x < COLS-1 && save_buffer[x+1+y*COLS] == prev_color )
{
PUSH( x+1, y );
}
if( y > 0 && save_buffer[x+(y-1)*COLS] == prev_color )
{
PUSH( x, y-1 );
}
if( y < ROWS - 1 && save_buffer[x+(y+1)*COLS] == prev_color )
{
PUSH( x, y+1 );
}
}
#undef PUSH
#undef POP
}
/* For preview purposes only */
/* use same algorithm as draw_line() to draw line. */
static void line_gradient( int x1, int y1, int x2, int y2 )
{
int h1, s1, v1, h2, s2, v2, r, g, b;
int xerr = x2 - x1, yerr = y2 - y1, xstep, ystep;
int i, delta, err;
fb_data color1, color2;
if( xerr == 0 && yerr == 0 )
{
draw_pixel( x1, y1 );
return;
}
xstep = xerr > 0 ? 1 : -1;
ystep = yerr > 0 ? 1 : -1;
xerr = abs(xerr) << 1;
yerr = abs(yerr) << 1;
color1 = rp_colors[ bgdrawcolor ];
color2 = rp_colors[ drawcolor ];
r = RGB_UNPACK_RED( color1 );
g = RGB_UNPACK_GREEN( color1 );
b = RGB_UNPACK_BLUE( color1 );
rgb2hsv( r, g, b, &h1, &s1, &v1 );
r = RGB_UNPACK_RED( color2 );
g = RGB_UNPACK_GREEN( color2 );
b = RGB_UNPACK_BLUE( color2 );
rgb2hsv( r, g, b, &h2, &s2, &v2 );
if( xerr > yerr )
{
err = xerr>>1;
delta = err+1;
/* to leave off the last pixel of the line, leave off the "+ 1" */
for (i = delta; i; --i)
{
hsv2rgb( h2+((h1-h2)*i)/delta,
s2+((s1-s2)*i)/delta,
v2+((v1-v2)*i)/delta,
&r, &g, &b );
rp_colors[ drawcolor ] = LCD_RGBPACK( r, g, b );
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel(x1, y1);
x1 += xstep;
err -= yerr;
if (err < 0) {
y1 += ystep;
err += xerr;
}
}
}
else /* yerr >= xerr */
{
err = yerr>>1;
delta = err+1;
for (i = delta; i; --i)
{
hsv2rgb( h2+((h1-h2)*i)/delta,
s2+((s1-s2)*i)/delta,
v2+((v1-v2)*i)/delta,
&r, &g, &b );
rp_colors[ drawcolor ] = LCD_RGBPACK( r, g, b );
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel(x1, y1);
y1 += ystep;
err -= xerr;
if (err < 0) {
x1 += xstep;
err += yerr;
}
}
}
rp_colors[ drawcolor ] = color2;
}
/* macros used by linear_gradient() and radial_gradient(). */
#define PUSH( _x, _y ) \
save_buffer[(_x)+(_y)*COLS] = mark_color; \
buffer->coord[i].x = (short)(_x); \
buffer->coord[i].y = (short)(_y); \
i++;
#define POP( _x, _y ) \
i--; \
_x = (int)buffer->coord[i].x; \
_y = (int)buffer->coord[i].y;
#define PUSH2( _x, _y ) \
j--; \
buffer->coord[j].x = (short)(_x); \
buffer->coord[j].y = (short)(_y);
#define POP2( _x, _y ) \
_x = (int)buffer->coord[j].x; \
_y = (int)buffer->coord[j].y; \
j++;
static void linear_gradient( int x1, int y1, int x2, int y2 )
{
int r1 = RGB_UNPACK_RED( rp_colors[ bgdrawcolor ] );
int g1 = RGB_UNPACK_GREEN( rp_colors[ bgdrawcolor ] );
int b1 = RGB_UNPACK_BLUE( rp_colors[ bgdrawcolor ] );
int r2 = RGB_UNPACK_RED( rp_colors[ drawcolor ] );
int g2 = RGB_UNPACK_GREEN( rp_colors[ drawcolor ] );
int b2 = RGB_UNPACK_BLUE( rp_colors[ drawcolor ] );
fb_data color = rp_colors[ drawcolor ];
int h1, s1, v1, h2, s2, v2, r, g, b;
/* radius^2 */
int radius2 = ( x1 - x2 ) * ( x1 - x2 ) + ( y1 - y2 ) * ( y1 - y2 );
int dist2, i=0, j=COLS*ROWS;
/* We only propagate the gradient to neighboring pixels with the same
* color as ( x1, y1 ) */
fb_data prev_color = save_buffer[ x1+y1*COLS ];
/* to mark pixel that the pixel is already in LIFO. */
fb_data mark_color = ~prev_color;
int x = x1;
int y = y1;
if( radius2 == 0 ) return;
if( preview )
{
line_gradient( x1, y1, x2, y2 );
return;
}
if( rp_colors[ drawcolor ] == rp_colors[ bgdrawcolor ] )
{
draw_fill( x1, y1 );
return;
}
rgb2hsv( r1, g1, b1, &h1, &s1, &v1 );
rgb2hsv( r2, g2, b2, &h2, &s2, &v2 );
PUSH( x, y );
while( i > 0 )
{
POP( x, y );
dist2 = ( x2 - x1 ) * ( x - x1 ) + ( y2 - y1 ) * ( y - y1 );
if( dist2 <= 0 )
{
rp_colors[ drawcolor ] = rp_colors[ bgdrawcolor ];
}
else if( dist2 < radius2 )
{
hsv2rgb( h1+((h2-h1)*dist2)/radius2,
s1+((s2-s1)*dist2)/radius2,
v1+((v2-v1)*dist2)/radius2,
&r, &g, &b );
rp_colors[ drawcolor ] = LCD_RGBPACK( r, g, b );
}
else
{
rp_colors[ drawcolor ] = color;
}
if( rp_colors[ drawcolor ] == prev_color )
{
/* "mark" that pixel was checked. correct color later. */
PUSH2( x, y );
rp_colors[ drawcolor ] = mark_color;
}
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel( x, y );
if( x > 0 && save_buffer[x-1+y*COLS] == prev_color )
{
PUSH( x-1, y );
}
if( x < COLS-1 && save_buffer[x+1+y*COLS] == prev_color )
{
PUSH( x+1, y );
}
if( y > 0 && save_buffer[x+(y-1)*COLS] == prev_color )
{
PUSH( x, y-1 );
}
if( y < ROWS - 1 && save_buffer[x+(y+1)*COLS] == prev_color )
{
PUSH( x, y+1 );
}
}
while (j < COLS*ROWS)
{
/* correct color. */
POP2( x, y );
rp_colors[ drawcolor ] = prev_color;
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel( x, y );
}
rp_colors[ drawcolor ] = color;
}
static void radial_gradient( int x1, int y1, int x2, int y2 )
{
int r1 = RGB_UNPACK_RED( rp_colors[ bgdrawcolor ] );
int g1 = RGB_UNPACK_GREEN( rp_colors[ bgdrawcolor ] );
int b1 = RGB_UNPACK_BLUE( rp_colors[ bgdrawcolor ] );
int r2 = RGB_UNPACK_RED( rp_colors[ drawcolor ] );
int g2 = RGB_UNPACK_GREEN( rp_colors[ drawcolor ] );
int b2 = RGB_UNPACK_BLUE( rp_colors[ drawcolor ] );
fb_data color = rp_colors[ drawcolor ];
int h1, s1, v1, h2, s2, v2, r, g, b;
/* radius^2 */
int radius2 = ( x1 - x2 ) * ( x1 - x2 ) + ( y1 - y2 ) * ( y1 - y2 );
int dist2, i=0, j=COLS*ROWS;
/* We only propagate the gradient to neighboring pixels with the same
* color as ( x1, y1 ) */
fb_data prev_color = save_buffer[ x1+y1*COLS ];
/* to mark pixel that the pixel is already in LIFO. */
fb_data mark_color = ~prev_color;
int x = x1;
int y = y1;
if( radius2 == 0 ) return;
if( preview )
{
line_gradient( x1, y1, x2, y2 );
return;
}
if( rp_colors[ drawcolor ] == rp_colors[ bgdrawcolor ] )
{
draw_fill( x1, y1 );
return;
}
rgb2hsv( r1, g1, b1, &h1, &s1, &v1 );
rgb2hsv( r2, g2, b2, &h2, &s2, &v2 );
PUSH( x, y );
while( i > 0 )
{
POP( x, y );
dist2 = ( x - x1 ) * ( x - x1 ) + ( y - y1 ) * ( y - y1 );
if( dist2 < radius2 )
{
hsv2rgb( h1+((h2-h1)*dist2)/radius2,
s1+((s2-s1)*dist2)/radius2,
v1+((v2-v1)*dist2)/radius2,
&r, &g, &b );
rp_colors[ drawcolor ] = LCD_RGBPACK( r, g, b );
}
else
{
rp_colors[ drawcolor ] = color;
}
if( rp_colors[ drawcolor ] == prev_color )
{
/* "mark" that pixel was checked. correct color later. */
PUSH2( x, y );
rp_colors[ drawcolor ] = mark_color;
}
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel( x, y );
if( x > 0 && save_buffer[x-1+y*COLS] == prev_color )
{
PUSH( x-1, y );
}
if( x < COLS-1 && save_buffer[x+1+y*COLS] == prev_color )
{
PUSH( x+1, y );
}
if( y > 0 && save_buffer[x+(y-1)*COLS] == prev_color )
{
PUSH( x, y-1 );
}
if( y < ROWS - 1 && save_buffer[x+(y+1)*COLS] == prev_color )
{
PUSH( x, y+1 );
}
}
while (j < COLS*ROWS)
{
/* correct color. */
POP2( x, y );
rp_colors[ drawcolor ] = prev_color;
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
draw_pixel( x, y );
}
rp_colors[ drawcolor ] = color;
}
#undef PUSH
#undef POP
#undef PUSH2
#undef POP2
static void draw_toolbars(bool update)
{
int i;
#define TOP (LCD_HEIGHT-TB_HEIGHT)
rb->lcd_set_background( COLOR_LIGHTGRAY );
rb->lcd_set_foreground( COLOR_LIGHTGRAY );
rb->lcd_fillrect( 0, TOP, LCD_WIDTH, TB_HEIGHT );
rb->lcd_set_foreground( COLOR_BLACK );
rb->lcd_drawrect( 0, TOP, LCD_WIDTH, TB_HEIGHT );
rb->lcd_set_foreground( rp_colors[ bgdrawcolor ] );
rb->lcd_fillrect( TB_SC_BG_LEFT, TOP+TB_SC_BG_TOP,
TB_SC_SIZE, TB_SC_SIZE );
rb->lcd_set_foreground(ROCKPAINT_PALETTE);
rb->lcd_drawrect( TB_SC_BG_LEFT, TOP+TB_SC_BG_TOP,
TB_SC_SIZE, TB_SC_SIZE );
rb->lcd_set_foreground( rp_colors[ drawcolor ] );
rb->lcd_fillrect( TB_SC_FG_LEFT, TOP+TB_SC_FG_TOP,
TB_SC_SIZE, TB_SC_SIZE );
rb->lcd_set_foreground(ROCKPAINT_PALETTE);
rb->lcd_drawrect( TB_SC_FG_LEFT, TOP+TB_SC_FG_TOP,
TB_SC_SIZE, TB_SC_SIZE );
for( i=0; i<18; i++ )
{
rb->lcd_set_foreground( rp_colors[i] );
rb->lcd_fillrect(
TB_PL_LEFT+(i%9)*( TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING ),
TOP+TB_PL_TOP+(i/9)*( TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING),
TB_PL_COLOR_SIZE, TB_PL_COLOR_SIZE );
rb->lcd_set_foreground( ROCKPAINT_PALETTE );
rb->lcd_drawrect(
TB_PL_LEFT+(i%9)*( TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING ),
TOP+TB_PL_TOP+(i/9)*( TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING),
TB_PL_COLOR_SIZE, TB_PL_COLOR_SIZE );
}
#define SEPARATOR( x, y ) \
rb->lcd_set_foreground( COLOR_WHITE ); \
rb->lcd_vline( x, TOP+y, TOP+y+TB_PL_HEIGHT-1 ); \
rb->lcd_set_foreground( COLOR_DARKGRAY ); \
rb->lcd_vline( x+1, TOP+y, TOP+y+TB_PL_HEIGHT-1 );
SEPARATOR( TB_PL_LEFT + TB_PL_WIDTH - 1 + TB_SP_MARGIN, TB_PL_TOP );
rb->lcd_bitmap_transparent( rockpaint, TB_TL_LEFT, TOP+TB_TL_TOP,
TB_TL_WIDTH, TB_TL_HEIGHT );
rb->lcd_set_foreground(ROCKPAINT_PALETTE);
rb->lcd_drawrect( TB_TL_LEFT+(TB_TL_SIZE+TB_TL_SPACING)*(tool/2),
TOP+TB_TL_TOP+(TB_TL_SIZE+TB_TL_SPACING)*(tool%2),
TB_TL_SIZE, TB_TL_SIZE );
SEPARATOR( TB_TL_LEFT + TB_TL_WIDTH - 1 + TB_SP_MARGIN, TB_TL_TOP );
rb->lcd_setfont( FONT_SYSFIXED );
rb->lcd_putsxy( TB_MENU_LEFT, TOP+TB_MENU_TOP, "Menu" );
rb->lcd_setfont( FONT_UI );
#undef TOP
if( update ) rb->lcd_update();
}
static void toolbar( void )
{
int button, i, j;
restore_screen();
draw_toolbars( false );
y = LCD_HEIGHT-TB_HEIGHT/2;
inv_cursor( true );
while( 1 )
{
switch( button = rb->button_get( true ) )
{
case ROCKPAINT_DRAW:
#define TOP ( LCD_HEIGHT - TB_HEIGHT )
if( y >= TOP + TB_SC_FG_TOP
&& y < TOP + TB_SC_FG_TOP + TB_SC_SIZE
&& x >= TB_SC_FG_LEFT
&& x < TB_SC_FG_LEFT + TB_SC_SIZE )
{
/* click on the foreground color */
rp_colors[drawcolor] = color_chooser( rp_colors[drawcolor] );
}
else if( y >= TOP + TB_SC_BG_TOP
&& y < TOP + TB_SC_BG_TOP + TB_SC_SIZE
&& x >= TB_SC_BG_LEFT
&& x < TB_SC_BG_LEFT + TB_SC_SIZE )
{
/* click on the background color */
i = drawcolor;
drawcolor = bgdrawcolor;
bgdrawcolor = i;
}
else if( y >= TOP + TB_PL_TOP
&& y < TOP + TB_PL_TOP + TB_PL_HEIGHT
&& x >= TB_PL_LEFT
&& x < TB_PL_LEFT + TB_PL_WIDTH )
{
/* click on the palette */
i = (x - TB_PL_LEFT)%(TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING);
j = (y - (TOP+TB_PL_TOP) )%(TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING);
if( i >= TB_PL_COLOR_SIZE || j >= TB_PL_COLOR_SIZE )
break;
i = ( x - TB_PL_LEFT )/(TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING);
j = ( y - (TOP+TB_PL_TOP) )/(TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING);
drawcolor = j*(TB_PL_COLOR_SIZE+TB_PL_COLOR_SPACING)+i;
}
else if( y >= TOP+TB_TL_TOP
&& y < TOP + TB_TL_TOP + TB_TL_HEIGHT
&& x >= TB_TL_LEFT
&& x <= TB_TL_LEFT + TB_TL_WIDTH )
{
/* click on the tools */
i = (x - TB_TL_LEFT ) % (TB_TL_SIZE+TB_TL_SPACING);
j = (y - (TOP+TB_TL_TOP) ) %(TB_TL_SIZE+TB_TL_SPACING);
if( i >= TB_TL_SIZE || j >= TB_TL_SIZE ) break;
i = ( x - TB_TL_LEFT )/(TB_TL_SIZE+TB_TL_SPACING);
j = ( y - (TOP+TB_TL_TOP) )/(TB_TL_SIZE+TB_TL_SPACING);
tool = i*2+j;
reset_tool();
if( tool == Text )
{
buffer->text.initialized = false;
}
}
else if( x >= TB_MENU_LEFT && y >= TOP+TB_MENU_TOP-2)
{
/* menu button */
goto_menu();
}
#undef TOP
restore_screen();
draw_toolbars( false );
inv_cursor( true );
break;
case ROCKPAINT_LEFT:
case ROCKPAINT_LEFT | BUTTON_REPEAT:
case ROCKPAINT_RIGHT:
case ROCKPAINT_RIGHT | BUTTON_REPEAT:
inv_cursor(false);
incdec_value(&x, &incdec_x,
(button&ROCKPAINT_RIGHT), (button&BUTTON_REPEAT));
inv_cursor(true);
break;
case ROCKPAINT_UP:
case ROCKPAINT_UP | BUTTON_REPEAT:
case ROCKPAINT_DOWN:
case ROCKPAINT_DOWN | BUTTON_REPEAT:
inv_cursor(false);
if (incdec_value(&y, &incdec_y,
(button&ROCKPAINT_DOWN), (button&BUTTON_REPEAT))
|| y < LCD_HEIGHT-TB_HEIGHT)
{
/* went out of region. exit toolbar. */
return;
}
inv_cursor(true);
break;
case ROCKPAINT_TOOLBAR:
case ROCKPAINT_TOOLBAR2:
return;
}
if( quit ) return;
}
}
static void inv_cursor(bool update)
{
rb->lcd_set_foreground(COLOR_BLACK);
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
/* cross painting */
rb->lcd_hline(x-4,x+4,y);
rb->lcd_vline(x,y-4,y+4);
rb->lcd_set_foreground(rp_colors[drawcolor]);
rb->lcd_set_drawmode(DRMODE_SOLID);
if( update ) rb->lcd_update();
}
static void restore_screen(void)
{
rb->lcd_bitmap( save_buffer, 0, 0, COLS, ROWS );
rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
rb->lcd_vline( img_width, 0, ROWS );
rb->lcd_hline( 0, COLS, img_height );
rb->lcd_drawpixel( img_width, img_height );
rb->lcd_set_drawmode(DRMODE_SOLID);
}
static void clear_drawing(void)
{
init_buffer();
img_height = ROWS;
img_width = COLS;
rb->lcd_set_foreground( rp_colors[ bgdrawcolor ] );
rb->lcd_fillrect( 0, 0, COLS, ROWS );
rb->lcd_update();
}
static void goto_menu(void)
{
int multi;
int selected = 0;
while( 1 )
{
switch( rb->do_menu( &main_menu, &selected, NULL, false ) )
{
case MAIN_MENU_NEW:
clear_drawing();
return;
case MAIN_MENU_LOAD:
if( browse( filename, MAX_PATH, "/" ) )
{
if( load_bitmap( filename ) <= 0 )
{
rb->splashf( 1*HZ, "Error while loading %s",
filename );
clear_drawing();
}
else
{
rb->splashf( 1*HZ, "Image loaded (%s)", filename );
restore_screen();
inv_cursor(true);
return;
}
}
break;
case MAIN_MENU_SAVE:
rb->lcd_set_foreground(COLOR_BLACK);
if (!filename[0])
rb->strcpy(filename,"/");
if( !rb->kbd_input( filename, MAX_PATH ) )
{
if( !check_extention( filename, ".bmp" ) )
rb->strcat(filename, ".bmp");
save_bitmap( filename );
rb->splashf( 1*HZ, "File saved (%s)", filename );
}
break;
case MAIN_MENU_SET_WIDTH:
rb->set_int( "Set Width", "px", UNIT_INT, &img_width,
NULL, 1, 1, COLS, NULL );
break;
case MAIN_MENU_SET_HEIGHT:
rb->set_int( "Set Height", "px", UNIT_INT, &img_height,
NULL, 1, 1, ROWS, NULL );
break;
case MAIN_MENU_BRUSH_SIZE:
for(multi = 0; multi<4; multi++)
if(bsize == times_list[multi]) break;
rb->set_option( "Brush Size", &multi, INT, times_options, 4, NULL );
if( multi >= 0 )
bsize = times_list[multi];
break;
case MAIN_MENU_BRUSH_SPEED:
for(multi = 0; multi<3; multi++)
if(bspeed == times_list[multi]) break;
rb->set_option( "Brush Speed", &multi, INT, times_options, 3, NULL );
if( multi >= 0 ) {
bspeed = times_list[multi];
incdec_x.step[0] = bspeed;
incdec_x.step[1] = bspeed * 4;
incdec_y.step[0] = bspeed;
incdec_y.step[1] = bspeed * 4;
}
break;
case MAIN_MENU_COLOR:
rp_colors[drawcolor] = color_chooser( rp_colors[drawcolor] );
break;
case MAIN_MENU_GRID_SIZE:
for(multi = 0; multi<4; multi++)
if(gridsize == gridsize_list[multi]) break;
rb->set_option( "Grid Size", &multi, INT, gridsize_options, 4, NULL );
if( multi >= 0 )
gridsize = gridsize_list[multi];
break;
case MAIN_MENU_PLAYBACK_CONTROL:
if (!audio_buf)
playback_control( NULL );
else
rb->splash(HZ, "Cannot restart playback");
break;
case MAIN_MENU_EXIT:
restore_screen();
quit=true;
return;
case MAIN_MENU_RESUME:
default:
restore_screen();
return;
}/* end switch */
}/* end while */
}
static void reset_tool( void )
{
prev_x = -1;
prev_y = -1;
prev_x2 = -1;
prev_y2 = -1;
prev_x3 = -1;
prev_y3 = -1;
/* reset state */
state = State0;
/* always preview color picker */
preview = (tool == ColorPicker);
}
/* brush tool */
static void state_func_brush(void)
{
if( state == State0 )
{
state = State1;
}
else
{
state = State0;
}
}
/* fill tool */
static void state_func_fill(void)
{
draw_fill( x, y );
restore_screen();
}
/* select rectangle tool */
static void state_func_select(void)
{
int mode;
if( state == State0 )
{
prev_x = x;
prev_y = y;
preview = true;
state = State1;
}
else if( state == State1 )
{
mode = rb->do_menu( &select_menu, NULL, NULL, false );
switch( mode )
{
case SELECT_MENU_CUT:
case SELECT_MENU_COPY:
prev_x2 = x;
prev_y2 = y;
if( prev_x < x ) x = prev_x;
if( prev_y < y ) y = prev_y;
prev_x3 = abs(prev_x2 - prev_x);
prev_y3 = abs(prev_y2 - prev_y);
copy_to_clipboard();
state = (mode == SELECT_MENU_CUT? State2: State3);
break;
case SELECT_MENU_INVERT:
draw_invert( prev_x, prev_y, x, y );
reset_tool();
break;
case SELECT_MENU_HFLIP:
draw_hflip( prev_x, prev_y, x, y );
reset_tool();
break;
case SELECT_MENU_VFLIP:
draw_vflip( prev_x, prev_y, x, y );
reset_tool();
break;
case SELECT_MENU_ROTATE90:
draw_rot_90_deg( prev_x, prev_y, x, y, 1 );
reset_tool();
break;
case SELECT_MENU_ROTATE180:
draw_hflip( prev_x, prev_y, x, y );
draw_vflip( prev_x, prev_y, x, y );
reset_tool();
break;
case SELECT_MENU_ROTATE270:
draw_rot_90_deg( prev_x, prev_y, x, y, -1 );
reset_tool();
break;
case SELECT_MENU_CANCEL:
reset_tool();
break;
default:
break;
}
restore_screen();
}
else
{
preview = false;
draw_paste_rectangle( prev_x, prev_y, prev_x2, prev_y2,
x, y, state == State2 );
reset_tool();
restore_screen();
}
}
static void preview_select(void)
{
if( state == State1 )
{
/* we are defining the selection */
draw_select_rectangle( prev_x, prev_y, x, y );
}
else
{
/* we are pasting the selected data */
draw_paste_rectangle( prev_x, prev_y, prev_x2, prev_y2,
x, y, state == State2 );
draw_select_rectangle( x, y, x+prev_x3, y+prev_y3 );
}
}
/* color picker tool */
static void state_func_picker(void)
{
preview = false;
color_picker( x, y );
reset_tool();
}
static void preview_picker(void)
{
color_picker( x, y );
}
/* curve tool */
static void state_func_curve(void)
{
if( state == State0 )
{
prev_x = x;
prev_y = y;
preview = true;
state = State1;
}
else if( state == State1 )
{
prev_x2 = x;
prev_y2 = y;
state = State2;
}
else if( state == State2 )
{
prev_x3 = x;
prev_y3 = y;
state = State3;
}
else
{
preview = false;
draw_curve( prev_x, prev_y, prev_x2, prev_y2,
prev_x3, prev_y3, x, y );
reset_tool();
restore_screen();
}
}
static void preview_curve(void)
{
if( state == State1 )
{
draw_line( prev_x, prev_y, x, y );
}
else
{
draw_curve( prev_x, prev_y, prev_x2, prev_y2,
prev_x3, prev_y3, x, y );
}
}
/* text tool */
static void state_func_text(void)
{
draw_text( x, y );
}
/* tools which take 2 point */
static void preview_2point(void);
static void state_func_2point(void)
{
if( state == State0 )
{
prev_x = x;
prev_y = y;
state = State1;
preview = true;
}
else
{
preview = false;
preview_2point();
reset_tool();
restore_screen();
}
}
static void preview_2point(void)
{
if( state == State1 )
{
switch( tool )
{
case Line:
draw_line( prev_x, prev_y, x, y );
break;
case Rectangle:
draw_rect( prev_x, prev_y, x, y );
break;
case RectangleFull:
draw_rect_full( prev_x, prev_y, x, y );
break;
case Oval:
draw_oval_empty( prev_x, prev_y, x, y );
break;
case OvalFull:
draw_oval_full( prev_x, prev_y, x, y );
break;
case LinearGradient:
linear_gradient( prev_x, prev_y, x, y );
break;
case RadialGradient:
radial_gradient( prev_x, prev_y, x, y );
break;
default:
break;
}
if( !preview )
{
reset_tool();
restore_screen();
}
}
}
static const struct tool_func tools[14] = {
[Brush] = { state_func_brush, NULL },
[Fill] = { state_func_fill, NULL },
[SelectRectangle] = { state_func_select, preview_select },
[ColorPicker] = { state_func_picker, preview_picker },
[Line] = { state_func_2point, preview_2point },
[Unused] = { NULL, NULL },
[Curve] = { state_func_curve, preview_curve },
[Text] = { state_func_text, NULL },
[Rectangle] = { state_func_2point, preview_2point },
[RectangleFull] = { state_func_2point, preview_2point },
[Oval] = { state_func_2point, preview_2point },
[OvalFull] = { state_func_2point, preview_2point },
[LinearGradient] = { state_func_2point, preview_2point },
[RadialGradient] = { state_func_2point, preview_2point },
};
static bool rockpaint_loop( void )
{
int button = 0, i, j;
bool bigstep;
x = 10;
toolbar();
x = 0; y = 0;
restore_screen();
inv_cursor(true);
while (!quit) {
button = rb->button_get(true);
bigstep = (button & BUTTON_REPEAT) && !(tool == Brush && state == State1);
switch(button)
{
case ROCKPAINT_QUIT:
if (state != State0)
{
reset_tool();
restore_screen();
inv_cursor(true);
}
else
{
rb->lcd_set_drawmode(DRMODE_SOLID);
return PLUGIN_OK;
}
break;
case ROCKPAINT_MENU:
goto_menu();
restore_screen();
inv_cursor(true);
break;
case ROCKPAINT_DRAW:
if( tools[tool].state_func )
{
inv_cursor(false);
tools[tool].state_func();
inv_cursor(true);
}
break;
case ROCKPAINT_DRAW|BUTTON_REPEAT:
if( tool == Curve && state != State0 )
{
/* 3 point bezier curve */
preview = false;
draw_curve( prev_x, prev_y, prev_x2, prev_y2,
-1, -1, x, y );
reset_tool();
restore_screen();
inv_cursor( true );
}
break;
case ROCKPAINT_TOOLBAR:
case ROCKPAINT_TOOLBAR2:
i = x; j = y;
x = (button == ROCKPAINT_TOOLBAR2) ? 110: 10;
toolbar();
x = i; y = j;
restore_screen();
inv_cursor(true);
break;
case ROCKPAINT_LEFT:
case ROCKPAINT_LEFT | BUTTON_REPEAT:
case ROCKPAINT_RIGHT:
case ROCKPAINT_RIGHT | BUTTON_REPEAT:
inv_cursor(false);
incdec_value(&x, &incdec_x,
(button&ROCKPAINT_RIGHT), bigstep);
inv_cursor(true);
break;
case ROCKPAINT_UP:
case ROCKPAINT_UP | BUTTON_REPEAT:
case ROCKPAINT_DOWN:
case ROCKPAINT_DOWN | BUTTON_REPEAT:
inv_cursor(false);
if (incdec_value(&y, &incdec_y,
(button&ROCKPAINT_DOWN), bigstep)
&& (button&ROCKPAINT_DOWN))
{
toolbar();
restore_screen();
}
inv_cursor(true);
break;
default:
if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
break;
}
if( tool == Brush && state == State1 )
{
inv_cursor(false);
draw_brush( x, y );
inv_cursor(true);
}
if( preview && tools[tool].preview_func )
{
restore_screen();
tools[tool].preview_func();
inv_cursor( true );
}
if( gridsize > 0 )
{
show_grid( true );
show_grid( false );
}
}
return PLUGIN_OK;
}
static int load_bitmap( const char *file )
{
struct bitmap bm;
bool ret;
int i, j;
fb_data color = rp_colors[ bgdrawcolor ];
bm.data = (char*)save_buffer;
ret = rb->read_bmp_file( file, &bm, ROWS*COLS*sizeof( fb_data ),
FORMAT_NATIVE, NULL );
if((bm.width > COLS ) || ( bm.height > ROWS ))
return -1;
img_width = bm.width;
img_height = bm.height;
for( i = bm.height-1; i >= 0; i-- )
{
rb->memmove( save_buffer+i*COLS, save_buffer+i*bm.width,
sizeof( fb_data )*bm.width );
for( j = bm.width; j < COLS; j++ )
save_buffer[j+i*COLS] = color;
}
for( i = bm.height*COLS; i < ROWS*COLS; i++ )
save_buffer[i] = color;
return ret;
}
static int save_bitmap( char *file )
{
struct bitmap bm;
int i;
for(i = 0; i < img_height; i++)
{
rb->memcpy( buffer->clipboard+i*img_width, save_buffer+i*COLS,
sizeof( fb_data )*img_width );
}
bm.data = (char*)buffer->clipboard;
bm.height = img_height;
bm.width = img_width;
bm.format = FORMAT_NATIVE;
return save_bmp_file( file, &bm );
}
enum plugin_status plugin_start(const void* parameter)
{
size_t buffer_size;
unsigned char *temp;
temp = rb->plugin_get_buffer(&buffer_size);
if (buffer_size < sizeof(*buffer) + 3)
{
/* steal from audiobuffer if plugin buffer is too small */
temp = rb->plugin_get_audio_buffer(&buffer_size);
if (buffer_size < sizeof(*buffer) + 3)
{
rb->splash(HZ, "Not enough memory");
return PLUGIN_ERROR;
}
audio_buf = true;
}
buffer = (union buf*) (((uintptr_t)temp + 3) & ~3);
rb->lcd_set_foreground(COLOR_WHITE);
rb->lcd_set_backdrop(NULL);
rb->lcd_fillrect(0,0,LCD_WIDTH,LCD_HEIGHT);
rb->splash( HZ/2, "Rock Paint");
rb->lcd_clear_display();
filename[0] = '\0';
if( parameter )
{
if( load_bitmap( parameter ) <= 0 )
{
rb->splash( 1*HZ, "File Open Error");
clear_drawing();
}
else
{
rb->splashf( 1*HZ, "Image loaded (%s)", (char *)parameter );
restore_screen();
rb->strcpy( filename, parameter );
}
}
else
{
clear_drawing();
}
inv_cursor(true);
return rockpaint_loop();
}
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