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rockbox/apps/plugins/test_grey.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00

244 lines
7.8 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 Jens Arnold
*
* 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 "plugin.h"
#include "grey.h"
#include "helper.h"
PLUGIN_HEADER
#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) \
|| (CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define GREY_QUIT BUTTON_MENU
#define GREY_OK BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP BUTTON_SCROLL_FWD
#define GREY_DOWN BUTTON_SCROLL_BACK
#elif CONFIG_KEYPAD == IRIVER_H100_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP BUTTON_UP
#define GREY_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == RECORDER_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK BUTTON_PLAY
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP BUTTON_UP
#define GREY_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == ONDIO_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK BUTTON_MENU
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP BUTTON_UP
#define GREY_DOWN BUTTON_DOWN
#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD) \
|| (CONFIG_KEYPAD == MROBE100_PAD)
#define GREY_QUIT BUTTON_POWER
#define GREY_OK BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP BUTTON_UP
#define GREY_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define GREY_QUIT BUTTON_RC_REC
#define GREY_OK BUTTON_RC_PLAY
#define GREY_PREV BUTTON_RC_REW
#define GREY_NEXT BUTTON_RC_FF
#define GREY_UP BUTTON_RC_VOL_UP
#define GREY_DOWN BUTTON_RC_VOL_DOWN
#else
#error unsupported keypad
#endif
#define BLOCK_WIDTH (LCD_WIDTH/8)
#define BLOCK_HEIGHT (LCD_HEIGHT/8)
#define STEPS 16
GREY_INFO_STRUCT
static const unsigned char dither_matrix[16][16] = {
{ 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 },
{ 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
{ 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
{ 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
{ 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 },
{ 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
{ 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
{ 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
{ 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 },
{ 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
{ 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
{ 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
{ 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 },
{ 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
{ 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
{ 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
};
static unsigned char input_levels[STEPS+1];
static unsigned char lcd_levels[STEPS+1];
static const struct plugin_api* rb;
static unsigned char *gbuf;
static size_t gbuf_size = 0;
static void fill_rastered(int bx, int by, int bw, int bh, int step)
{
int x, xmax, y, ymax;
int level;
if (step < 0)
step = 0;
else if (step > STEPS)
step = STEPS;
level = input_levels[step];
level += (level-1) >> 7;
for (y = (LCD_HEIGHT/2) + by * BLOCK_HEIGHT, ymax = y + bh * BLOCK_HEIGHT;
y < ymax; y++)
{
for (x = (LCD_WIDTH/2) + bx * BLOCK_WIDTH, xmax = x + bw * BLOCK_WIDTH;
x < xmax; x++)
{
grey_set_foreground((level > dither_matrix[y & 0xf][x & 0xf])
? 255 : 0);
grey_drawpixel(x, y);
}
}
}
/* plugin entry point */
enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
{
bool done = false;
int cur_step = 1;
int button, i, l, fd;
unsigned char filename[MAX_PATH];
/* standard stuff */
(void)parameter;
rb = api;
gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
if (!grey_init(rb, gbuf, gbuf_size,
GREY_BUFFERED|GREY_RAWMAPPED|GREY_ON_COP,
LCD_WIDTH, LCD_HEIGHT, NULL))
{
rb->splash(HZ, "Not enough memory.");
return PLUGIN_ERROR;
}
for (i = 0; i <= STEPS; i++)
input_levels[i] = lcd_levels[i] = (255 * i + (STEPS/2)) / STEPS;
backlight_force_on(rb); /* backlight control in lib/helper.c */
grey_set_background(0); /* set background to black */
grey_clear_display();
grey_show(true);
while (!done)
{
fill_rastered(-3, -3, 2, 2, cur_step - 1);
fill_rastered(-1, -3, 2, 2, cur_step);
fill_rastered(1, -3, 2, 2, cur_step + 1);
fill_rastered(-3, -1, 2, 2, cur_step);
grey_set_foreground(lcd_levels[cur_step]);
grey_fillrect(LCD_WIDTH/2-BLOCK_WIDTH, LCD_HEIGHT/2-BLOCK_HEIGHT,
2*BLOCK_WIDTH, 2*BLOCK_HEIGHT);
fill_rastered(1, -1, 2, 2, cur_step);
fill_rastered(-3, 1, 2, 2, cur_step + 1);
fill_rastered(-1, 1, 2, 2, cur_step);
fill_rastered(1, 1, 2, 2, cur_step - 1);
grey_update();
button = rb->button_get(true);
switch (button)
{
case GREY_PREV:
if (cur_step > 0)
cur_step--;
break;
case GREY_NEXT:
if (cur_step < STEPS)
cur_step++;
break;
case GREY_UP:
case GREY_UP|BUTTON_REPEAT:
l = lcd_levels[cur_step];
if (l < 255)
{
l++;
for (i = cur_step; i <= STEPS; i++)
if (lcd_levels[i] < l)
lcd_levels[i] = l;
}
break;
case GREY_DOWN:
case GREY_DOWN|BUTTON_REPEAT:
l = lcd_levels[cur_step];
if (l > 0)
{
l--;
for (i = cur_step; i >= 0; i--)
if (lcd_levels[i] > l)
lcd_levels[i] = l;
}
break;
case GREY_OK:
rb->create_numbered_filename(filename, "/", "test_grey_",
".txt", 2 IF_CNFN_NUM_(, NULL));
fd = rb->open(filename, O_RDWR|O_CREAT|O_TRUNC);
if (fd >= 0)
{
for (i = 0; i <= STEPS; i++)
rb->fdprintf(fd, "%3d: %3d\n", input_levels[i],
lcd_levels[i]);
rb->close(fd);
}
/* fall through */
case GREY_QUIT:
done = true;
break;
}
}
grey_release();
backlight_use_settings(rb); /* backlight control in lib/helper.c */
return PLUGIN_OK;
}
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