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Merge pull request #45 from jiangyy/fix-litenes 

litenes: lock FPS to 60
This commit is contained in:
Yanyan Jiang 2019-05-07 04:57:13 +00:00 committed by GitHub
parent 38a7ad8ed9 aea00f757d
commit fb3325b63f
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1 changed files with 7 additions and 10 deletions
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17
apps/litenes/src/fce.c
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@ -5,7 +5,7 @@
#include <klib.h>
#include <amdev.h>
//#define NOGUI
// #define NOGUI
int key_state[256];
bool do_update = false;
@ -85,27 +85,24 @@ void fce_init()
cpu_reset();
}
static unsigned long gtime;
static unsigned long frames;
void wait_for_frame() {
frames++;
#ifdef NOGUI
return;
#endif
if (!do_update) return;
unsigned long cur = uptime();
while (cur - gtime < 1000 / FPS) {
cur = uptime();
while (1) {
unsigned long expect = uptime() / (1000 / FPS);
if (expect >= frames) break;
}
gtime = cur;
}
void fce_run()
{
key_state[0] = 1;
gtime = uptime();
int nr_draw = 0;
uint32_t last = gtime;
uint32_t last = uptime();
while(1)
{
wait_for_frame();