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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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 3 of the License, or
(at your option) any later version.
ChibiOS/GFX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ch.h"
#include "hal.h"
#include "chprintf.h"
#include "stdlib.h"
#include "string.h"
#include "gfx.h"
#define SCB_DEMCR (*(volatile unsigned *)0xE000EDFC)
#define CPU_RESET_CYCLECOUNTER do { SCB_DEMCR = SCB_DEMCR | 0x01000000; \
DWT_CYCCNT = 0; \
DWT_CTRL = DWT_CTRL | 1 ; } while(0)
static int uitoa(unsigned int value, char * buf, int max) {
int n = 0;
int i = 0;
unsigned int tmp = 0;
if (NULL == buf)
return -3;
if (2 > max)
return -4;
i=1;
tmp = value;
if (0 > tmp) {
tmp *= -1;
i++;
}
for (;;) {
tmp /= 10;
if (0 >= tmp)
break;
i++;
}
if (i >= max) {
buf[0] = '?';
buf[1] = 0x0;
return 2;
}
n = i;
tmp = value;
if (0 > tmp) {
tmp *= -1;
}
buf[i--] = 0x0;
for (;;) {
buf[i--] = (tmp % 10) + '0';
tmp /= 10;
if (0 >= tmp) {
break;
}
}
if (-1 != i) {
buf[i--] = '-';
}
return n;
}
void benchmark(void) {
uint32_t i, pixels, ms, pps;
char pps_str[25];
coord_t height, width, rx, ry, rcx, rcy;
color_t random_color;
font_t font;
gdispSetOrientation(GDISP_ROTATE_90);
gdispClear(Black);
width = gdispGetWidth();
height = gdispGetHeight();
font = gdispOpenFont("UI2 Double");
gdispDrawStringBox(0, 0, width, 30, "ChibiOS/GFX - Benchmark", font, White, justifyCenter);
font = gdispOpenFont("UI2");
gdispDrawStringBox(0, height/2, width, 30, "5000 random rectangles", font, White, justifyCenter);
chThdSleepMilliseconds(3000);
/* seed for the rand() */
srand(DWT_CYCCNT);
pixels = 0;
CPU_RESET_CYCLECOUNTER;
for (i = 0; i < 5000; i++) {
random_color = (rand() % 65535);
rx = (rand() % (width-10));
ry = (rand() % (height-10));
rcx = (rand() % ((width-rx)-10))+10;
rcy = (rand() % ((height-ry)-10))+10;
gdispFillArea(rx, ry, rcx, rcy, random_color);
pixels += (rcx+1)*(rcy+1);
}
ms = DWT_CYCCNT / 168000;
pps = (float)pixels/((float)ms/1000.0f);
memset (pps_str, 0, sizeof(pps_str));
uitoa(pps, pps_str, sizeof(pps_str));
strcat(pps_str, " Pixels/s");
font = gdispOpenFont("UI2 Double");
gdispClear(Black);
gdispDrawStringBox(0, 0, width, 30, "ChibiOS/GFX - Benchmark", font, White, justifyCenter);
gdispDrawStringBox(0, height/2, width, 30, pps_str, font, White, justifyCenter);
//gdispDrawString(20, height/2, pps_str, font, White);
}
int main(void) {
halInit();
chSysInit();
gdispInit();
benchmark();
while(TRUE) {
chThdSleepMilliseconds(500);
}
return 0;
}
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