diff options
| author | David Robillard <d@drobilla.net> | 2019-06-27 22:07:36 +0200 |
|---|---|---|
| committer | David Robillard <d@drobilla.net> | 2019-06-27 22:48:43 +0200 |
| commit | 664b49726136f861d695b96f4e285f9afcdc7127 (patch) | |
| tree | fd08f9f13b9f89c782dc88363a92a161f54f7b42 | |
| parent | bd5d643192e189e2f4d34ecc1b93a7758cfeb583 (diff) | |
Add puglGetTime()
| -rw-r--r-- | pugl/pugl.h | 10 | ||||
| -rw-r--r-- | pugl/pugl_osx.m | 9 | ||||
| -rw-r--r-- | pugl/pugl_win.cpp | 13 | ||||
| -rw-r--r-- | pugl/pugl_x11.c | 10 |
4 files changed, 42 insertions, 0 deletions
diff --git a/pugl/pugl.h b/pugl/pugl.h index 01b7f01..c8e62d4 100644 --- a/pugl/pugl.h +++ b/pugl/pugl.h @@ -635,6 +635,16 @@ PUGL_API PuglGlFunc puglGetProcAddress(const char* name); /** + Return the time in seconds. + + This is a monotonically increasing clock with high resolution. The returned + time is only useful to compare against other times returned by this + function, its absolute value has no meaning. +*/ +PUGL_API double +puglGetTime(PuglView* view); + +/** Request a redisplay on the next call to puglProcessEvents(). */ PUGL_API void diff --git a/pugl/pugl_osx.m b/pugl/pugl_osx.m index 02bf46a..1503034 100644 --- a/pugl/pugl_osx.m +++ b/pugl/pugl_osx.m @@ -27,6 +27,7 @@ #import <Cocoa/Cocoa.h> #include <stdlib.h> +#include <time.h> #undef PUGL_HAVE_CAIRO @@ -726,6 +727,14 @@ puglGetProcAddress(const char *name) return func; } +double +puglGetTime(PuglView* view) +{ + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (double)ts.tv_sec + ts.tv_nsec / 1000000000.0; +} + void puglPostRedisplay(PuglView* view) { diff --git a/pugl/pugl_win.cpp b/pugl/pugl_win.cpp index 6185c91..2ae832b 100644 --- a/pugl/pugl_win.cpp +++ b/pugl/pugl_win.cpp @@ -55,6 +55,7 @@ struct PuglInternalsImpl { HDC hdc; HGLRC hglrc; WNDCLASS wc; + double timerFrequency; }; LRESULT CALLBACK @@ -99,6 +100,10 @@ puglCreateWindow(PuglView* view, const char* title) PuglInternals* impl = view->impl; + LARGE_INTEGER frequency; + QueryPerformanceFrequency(&frequency); + impl->timerFrequency = frequency.QuadPart; + if (!title) { title = "Window"; } @@ -619,6 +624,14 @@ puglGetProcAddress(const char* name) return (PuglGlFunc)wglGetProcAddress(name); } +double +puglGetTime(PuglView* view) +{ + LARGE_INTEGER count; + QueryPerformanceCounter(&count); + return double(count.QuadPart) / view->impl->timerFrequency; +} + void puglPostRedisplay(PuglView* view) { diff --git a/pugl/pugl_x11.c b/pugl/pugl_x11.c index 6563805..2fd6e92 100644 --- a/pugl/pugl_x11.c +++ b/pugl/pugl_x11.c @@ -20,6 +20,7 @@ @file pugl_x11.c X11 Pugl Implementation. */ +#define _POSIX_C_SOURCE 199309L #include "pugl/pugl_internal.h" #include "pugl/pugl_x11.h" @@ -38,6 +39,7 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <time.h> #ifndef MIN # define MIN(a, b) (((a) < (b)) ? (a) : (b)) @@ -516,6 +518,14 @@ puglProcessEvents(PuglView* view) return PUGL_SUCCESS; } +double +puglGetTime(PuglView* view) +{ + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (double)ts.tv_sec + ts.tv_nsec / 1000000000.0; +} + void puglPostRedisplay(PuglView* view) { |