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