Mercurial > sdl-ios-xcode
view test/testtimer.c @ 4525:3abf0b9cafad
pelya 2010-07-12 03:53:48 PDT
In function GLES_RenderCopy() in SDL_renderer_gles.c:819 there is one memcpy()
that can be avoided if we're updating whole texture.
Because of that the SDL 1.3 in compatibility mode is working even slower than
software rendering in SDL 1.2.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 14 Jul 2010 07:31:35 -0700 |
parents | c121d94672cb |
children |
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/* Test program to check the resolution of the SDL timer on the current platform */ #include <stdlib.h> #include <stdio.h> #include "SDL.h" #define DEFAULT_RESOLUTION 1 static int ticks = 0; static Uint32 SDLCALL ticktock(Uint32 interval) { ++ticks; return (interval); } static Uint32 SDLCALL callback(Uint32 interval, void *param) { printf("Timer %d : param = %d\n", interval, (int) (uintptr_t) param); return interval; } int main(int argc, char *argv[]) { int desired; SDL_TimerID t1, t2, t3; if (SDL_Init(SDL_INIT_TIMER) < 0) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); return (1); } /* Start the timer */ desired = 0; if (argv[1]) { desired = atoi(argv[1]); } if (desired == 0) { desired = DEFAULT_RESOLUTION; } SDL_SetTimer(desired, ticktock); /* Wait 10 seconds */ printf("Waiting 10 seconds\n"); SDL_Delay(10 * 1000); /* Stop the timer */ SDL_SetTimer(0, NULL); /* Print the results */ if (ticks) { fprintf(stderr, "Timer resolution: desired = %d ms, actual = %f ms\n", desired, (double) (10 * 1000) / ticks); } /* Test multiple timers */ printf("Testing multiple timers...\n"); t1 = SDL_AddTimer(100, callback, (void *) 1); if (!t1) fprintf(stderr, "Could not create timer 1: %s\n", SDL_GetError()); t2 = SDL_AddTimer(50, callback, (void *) 2); if (!t2) fprintf(stderr, "Could not create timer 2: %s\n", SDL_GetError()); t3 = SDL_AddTimer(233, callback, (void *) 3); if (!t3) fprintf(stderr, "Could not create timer 3: %s\n", SDL_GetError()); /* Wait 10 seconds */ printf("Waiting 10 seconds\n"); SDL_Delay(10 * 1000); printf("Removing timer 1 and waiting 5 more seconds\n"); SDL_RemoveTimer(t1); SDL_Delay(5 * 1000); SDL_RemoveTimer(t2); SDL_RemoveTimer(t3); SDL_Quit(); return (0); }