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/*****************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// __ \_/ ___\| |/ /| __ \ / __ \ \/ /
* Jukebox | | ( (__) ) \___| ( | \_\ ( (__) ) (
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 Andrew Mahone
*
* In-memory JPEG decode benchmark.
*
* 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 "lib/jpeg_mem.h"
/* a null output plugin to save memory and better isolate decode cost */
static unsigned int get_size_null(struct bitmap *bm)
{
(void) bm;
return 1;
}
static void output_row_null(uint32_t row, void * row_in,
struct scaler_context *ctx)
{
(void) row;
(void) row_in;
(void) ctx;
return;
}
const struct custom_format format_null = {
.output_row_8 = output_row_null,
#ifdef HAVE_LCD_COLOR
.output_row_32 = {
output_row_null,
output_row_null
},
#else
.output_row_32 = output_row_null,
#endif
.get_size = get_size_null
};
static int output_y = 0;
static int font_h;
#define lcd_printf(...) \
do { \
rb->lcd_putsxyf(0, output_y, __VA_ARGS__); \
rb->lcd_update_rect(0, output_y, LCD_WIDTH, font_h); \
output_y += font_h; \
} while (0)
/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
size_t plugin_buf_len;
unsigned char * plugin_buf =
(unsigned char *)rb->plugin_get_buffer(&plugin_buf_len);
static char filename[MAX_PATH];
struct bitmap bm = {
.width = LCD_WIDTH,
.height = LCD_HEIGHT,
};
int ret;
if(!parameter) return PLUGIN_ERROR;
rb->strcpy(filename, parameter);
rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
rb->lcd_fillrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
rb->lcd_set_drawmode(DRMODE_SOLID);
rb->lcd_getstringsize("A", NULL, &font_h);
int fd = rb->open(filename, O_RDONLY);
if (fd < 0)
{
lcd_printf("file open failed: %d", fd);
goto wait;
}
unsigned long filesize = rb->filesize(fd);
if (filesize > plugin_buf_len)
{
lcd_printf("file too large");
goto wait;
}
plugin_buf_len -= filesize;
unsigned char *jpeg_buf = plugin_buf;
plugin_buf += filesize;
rb->read(fd, jpeg_buf, filesize);
rb->close(fd);
bm.data = plugin_buf;
struct dim jpeg_size;
get_jpeg_dim_mem(jpeg_buf, filesize, &jpeg_size);
lcd_printf("jpeg file size: %dx%d",jpeg_size.width, jpeg_size.height);
bm.width = jpeg_size.width;
bm.height = jpeg_size.height;
char *size_str[] = { "1/1", "1/2", "1/4", "1/8" };
int i;
for (i = 0; i < 4; i++)
{
lcd_printf("timing %s decode", size_str[i]);
ret = decode_jpeg_mem(jpeg_buf, filesize, &bm, plugin_buf_len,
FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
&format_null);
if (ret == 1)
{
long t1, t2, t_end;
int count = 0;
t2 = *(rb->current_tick);
while (t2 != (t1 = *(rb->current_tick)));
t_end = t1 + 10 * HZ;
do {
decode_jpeg_mem(jpeg_buf, filesize, &bm, plugin_buf_len,
FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
&format_null);
count++;
t2 = *(rb->current_tick);
} while (TIME_BEFORE(t2, t_end) || count < 10);
t2 -= t1;
t2 *= 10;
t2 += count >> 1;
t2 /= count;
t1 = t2 / 1000;
t2 -= t1 * 1000;
lcd_printf("%01d.%03d secs/decode", (int)t1, (int)t2);
bm.width >>= 1;
bm.height >>= 1;
if (!(bm.width && bm.height))
break;
} else
lcd_printf("insufficient memory");
}
wait:
while (rb->get_action(CONTEXT_STD,1) != ACTION_STD_OK) rb->yield();
return PLUGIN_OK;
}
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