DXGL r849 - Code Review

Repository:	DXGL
Revision:	< r848‎ \| r849 \| r850 >
Date:	18:14, 1 September 2018
Author:	admin
Status:	new
Tags:
Comment:	Add functions to DXGLTimer to set and compare times.
Modified paths:	/ddraw/struct.h (modified) (history) /ddraw/timer.c (modified) (history) /ddraw/timer.h (modified) (history)

Diff [purge]

Index: ddraw/struct.h
—	—	@@ -47,6 +47,7 @@
48	48	double monitor_period;
49	49	double timer_frequency;
50	50	LARGE_INTEGER timer_base;
	51	+ LARGE_INTEGER lastdraw;
51	52	} DXGLTimer;
52	53
53	54	// OpenGL Extensions structure
Index: ddraw/timer.c
—	—	@@ -73,4 +73,23 @@
74	74	sync_pos /= timer->monitor_period;
75	75	sync_pos *= (double)timer->lines;
76	76	return (unsigned int)sync_pos;
	77	+}
	78	+
	79	+void DXGLTimer_SetLastDraw(DXGLTimer *timer)
	80	+{
	81	+ if (timer->timertype == 1) QueryPerformanceCounter(&timer->lastdraw);
	82	+ else timer->lastdraw.QuadPart = timeGetTime();
	83	+}
	84	+
	85	+BOOL DXGLTimer_CheckLastDraw(DXGLTimer *timer, DWORD ms)
	86	+{
	87	+ LARGE_INTEGER timerpos;
	88	+ double milliseconds;
	89	+ if (timer->timertype == 1) QueryPerformanceCounter(&timerpos);
	90	+ else timerpos.QuadPart = timeGetTime();
	91	+ timerpos.QuadPart -= timer->timer_base.QuadPart;
	92	+ if (timer->timertype == 1) milliseconds = ((double)timerpos.QuadPart / (double)timer->timer_frequency) * 1000.0;
	93	+ else milliseconds = (double)timerpos.QuadPart;
	94	+ if (milliseconds < ms) return FALSE;
	95	+ else return TRUE;
77	96	}
\ No newline at end of file
Index: ddraw/timer.h
—	—	@@ -26,6 +26,8 @@
27	27	void DXGLTimer_Init(DXGLTimer *timer);
28	28	void DXGLTimer_Calibrate(DXGLTimer *timer, unsigned int lines, unsigned int frequency);
29	29	unsigned int DXGLTimer_GetScanLine(DXGLTimer *timer);
	30	+void DXGLTimer_SetLastDraw(DXGLTimer *timer);
	31	+BOOL DXGLTimer_CheckLastDraw(DXGLTimer *timer, DWORD ms);
30	32
31	33	#ifdef __cplusplus
32	34	}