150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/*
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* Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org>
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* Copyright (c) 2012, 2013, Andrew Hannam aka inmarket
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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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 (!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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gU32 i, pixels, ms, pps;
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char pps_str[25];
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gCoord height, width, rx, ry, rcx, rcy;
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gColor random_color;
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gFont font;
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gdispSetOrientation(gOrientation90);
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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, GFX_WHITE, gJustifyCenter);
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font = gdispOpenFont("UI2");
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gdispDrawStringBox(0, height/2, width, 30, "5000 random rectangles", font, GFX_WHITE, gJustifyCenter);
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gfxSleepMilliseconds(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(GFX_BLACK);
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gdispDrawStringBox(0, 0, width, 30, "ChibiOS/GFX - Benchmark", font, GFX_WHITE, gJustifyCenter);
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gdispDrawStringBox(0, height/2, width, 30, pps_str, font, GFX_WHITE, gJustifyCenter);
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//gdispDrawString(20, height/2, pps_str, font, GFX_WHITE);
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}
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int main(void) {
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gfxInit();
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benchmark();
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while(1) {
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gfxSleepMilliseconds(500);
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}
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return 0;
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}
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