From b06cd4debfc4fb4162b4b45e61ea91948de0a279 Mon Sep 17 00:00:00 2001
From: José Fonseca <jrfonseca@tungstengraphics.com>
Date: Fri, 25 Apr 2008 18:19:51 +0900
Subject: gallium: Windows user mode portability fixes.

---
 src/gallium/auxiliary/util/u_time.c | 38 +++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

(limited to 'src/gallium/auxiliary/util/u_time.c')

diff --git a/src/gallium/auxiliary/util/u_time.c b/src/gallium/auxiliary/util/u_time.c
index 01112ebe5a..dd28ff4134 100644
--- a/src/gallium/auxiliary/util/u_time.c
+++ b/src/gallium/auxiliary/util/u_time.c
@@ -33,27 +33,35 @@
  */
 
 
-#ifndef WIN32
+#include "util/u_time.h"
+
+#if defined(PIPE_OS_LINUX)
 #include <sys/time.h>
-#else
+#elif defined(PIPE_OS_WINDOWS)
 #include <windows.h>
+#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
 #include <winddi.h>
 #endif
-
-#include "util/u_time.h"
+#else
+#error Unsupported OS
+#endif
 
 
-#ifdef WIN32
+#if defined(PIPE_OS_WINDOWS)
 static LONGLONG frequency = 0;
+#if !defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
+#define EngQueryPerformanceFrequency(p) QueryPerformanceFrequency((LARGE_INTEGER*)(p))
+#define EngQueryPerformanceCounter(p) QueryPerformanceCounter((LARGE_INTEGER*)(p))
+#endif
 #endif
 
 
 void 
 util_time_get(struct util_time *t)
 {
-#ifndef WIN32
+#if defined(PIPE_OS_LINUX)
    gettimeofday(&t->tv, NULL);
-#else
+#elif defined(PIPE_OS_WINDOWS)
    EngQueryPerformanceCounter(&t->counter);
 #endif
 }
@@ -64,10 +72,10 @@ util_time_add(const struct util_time *t1,
               int64_t usecs,
               struct util_time *t2)
 {
-#ifndef WIN32
+#if defined(PIPE_OS_LINUX)
    t2->tv.tv_sec = t1->tv.tv_sec + usecs / 1000000;
    t2->tv.tv_usec = t1->tv.tv_usec + usecs % 1000000;
-#else
+#elif defined(PIPE_OS_WINDOWS)
    if(!frequency)
       EngQueryPerformanceFrequency(&frequency);
    t2->counter = t1->counter + (usecs * frequency + 999999LL)/1000000LL;
@@ -79,10 +87,12 @@ int64_t
 util_time_diff(const struct util_time *t1, 
                const struct util_time *t2)
 {
-#ifndef WIN32
+#if defined(PIPE_OS_LINUX)
    return (t2->tv.tv_usec - t1->tv.tv_usec) + 
           (t2->tv.tv_sec - t1->tv.tv_sec)*1000000;
-#else
+#elif defined(PIPE_OS_WINDOWS)
+   if(!frequency)
+      EngQueryPerformanceFrequency(&frequency);
    return (t2->counter - t1->counter)*1000000LL/frequency;
 #endif
 }
@@ -98,7 +108,7 @@ static INLINE int
 util_time_compare(const struct util_time *t1, 
                   const struct util_time *t2)
 {
-#ifndef WIN32
+#if defined(PIPE_OS_LINUX)
    if (t1->tv.tv_sec < t2->tv.tv_sec)
       return -1;
    else if(t1->tv.tv_sec > t2->tv.tv_sec)
@@ -109,7 +119,7 @@ util_time_compare(const struct util_time *t1,
       return 1;
    else 
       return 0;
-#else
+#elif defined(PIPE_OS_WINDOWS)
    if (t1->counter < t2->counter)
       return -1;
    else if(t1->counter > t2->counter)
@@ -132,7 +142,7 @@ util_time_timeout(const struct util_time *start,
 }
 
 
-#ifdef WIN32
+#if defined(PIPE_OS_WINDOWS)
 void util_time_sleep(unsigned usecs)
 {
    LONGLONG start, curr, end;
-- 
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