/* * Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu * Copyright (c) 2012, 2013, Andrew Hannam aka inmarket * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #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 (!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]; gCoord height, width, rx, ry, rcx, rcy; gColor random_color; gFont font; gdispSetOrientation(GDISP_ROTATE_90); width = gdispGetWidth(); height = gdispGetHeight(); font = gdispOpenFont("UI2 Double"); gdispDrawStringBox(0, 0, width, 30, "ChibiOS/GFX - Benchmark", font, GFX_WHITE, gJustifyCenter); font = gdispOpenFont("UI2"); gdispDrawStringBox(0, height/2, width, 30, "5000 random rectangles", font, GFX_WHITE, gJustifyCenter); gfxSleepMilliseconds(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(GFX_BLACK); gdispDrawStringBox(0, 0, width, 30, "ChibiOS/GFX - Benchmark", font, GFX_WHITE, gJustifyCenter); gdispDrawStringBox(0, height/2, width, 30, pps_str, font, GFX_WHITE, gJustifyCenter); //gdispDrawString(20, height/2, pps_str, font, GFX_WHITE); } int main(void) { gfxInit(); benchmark(); while(1) { gfxSleepMilliseconds(500); } return 0; }