Merge pull request #42157 from akien-mga/math-RANDOM_MAX-netbsd

Linux/BSD: Fix support for NetBSD

core/math/math_funcs.h

@@ -46,7 +46,8 @@ class Math {
 public:
 	Math() {} // useless to instance
 
-	static const uint64_t RANDOM_MAX = 0xFFFFFFFF;
+	// Not using 'RANDOM_MAX' to avoid conflict with system headers on some OSes (at least NetBSD).
+	static const uint64_t RANDOM_32BIT_MAX = 0xFFFFFFFF;
 
 	static _ALWAYS_INLINE_ double sin(double p_x) { return ::sin(p_x); }
 	static _ALWAYS_INLINE_ float sin(float p_x) { return ::sinf(p_x); }
@@ -283,8 +284,8 @@ public:
 	static void randomize();
 	static uint32_t rand_from_seed(uint64_t *seed);
 	static uint32_t rand();
-	static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_MAX; }
-	static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_MAX; }
+	static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_32BIT_MAX; }
+	static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_32BIT_MAX; }
 
 	static double random(double from, double to);
 	static float random(float from, float to);

core/math/random_pcg.h

@@ -31,12 +31,12 @@
 #ifndef RANDOM_PCG_H
 #define RANDOM_PCG_H
 
-#include <math.h>
-
 #include "core/math/math_defs.h"
 
 #include "thirdparty/misc/pcg.h"
 
+#include <math.h>
+
 #if defined(__GNUC__)
 #define CLZ32(x) __builtin_clz(x)
 #elif defined(_MSC_VER)
@@ -67,7 +67,6 @@ class RandomPCG {
 public:
 	static const uint64_t DEFAULT_SEED = 12047754176567800795U;
 	static const uint64_t DEFAULT_INC = PCG_DEFAULT_INC_64;
-	static const uint64_t RANDOM_MAX = 0xFFFFFFFF;
 
 	RandomPCG(uint64_t p_seed = DEFAULT_SEED, uint64_t p_inc = DEFAULT_INC);
 

drivers/unix/os_unix.cpp

@@ -48,7 +48,7 @@
 #include <mach/mach_time.h>
 #endif
 
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
 #include <sys/param.h>
 #include <sys/sysctl.h>
 #endif
@@ -477,7 +477,7 @@ String OS_Unix::get_executable_path() const {
 		return OS::get_executable_path();
 	}
 	return b;
-#elif defined(__OpenBSD__)
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
 	char resolved_path[MAXPATHLEN];
 
 	realpath(OS::get_executable_path().utf8().get_data(), resolved_path);

drivers/unix/thread_posix.cpp

@@ -29,17 +29,17 @@
 /*************************************************************************/
 
 #include "thread_posix.h"
-#include "core/script_language.h"
 
 #if (defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)) && !defined(NO_THREADS)
 
+#include "core/os/memory.h"
+#include "core/safe_refcount.h"
+#include "core/script_language.h"
+
 #ifdef PTHREAD_BSD_SET_NAME
 #include <pthread_np.h>
 #endif
 
-#include "core/os/memory.h"
-#include "core/safe_refcount.h"
-
 static void _thread_id_key_destr_callback(void *p_value) {
 	memdelete(static_cast<Thread::ID *>(p_value));
 }
@@ -126,6 +126,8 @@ Error ThreadPosix::set_name_func_posix(const String &p_name) {
 #ifdef PTHREAD_BSD_SET_NAME
 	pthread_set_name_np(running_thread, p_name.utf8().get_data());
 	int err = 0; // Open/FreeBSD ignore errors in this function
+#elif defined(PTHREAD_NETBSD_SET_NAME)
+	int err = pthread_setname_np(running_thread, "%s", const_cast<char *>(p_name.utf8().get_data()));
 #else
 	int err = pthread_setname_np(running_thread, p_name.utf8().get_data());
 #endif // PTHREAD_BSD_SET_NAME

platform/linuxbsd/display_server_x11.cpp

@@ -3575,7 +3575,12 @@ DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode
 	xrandr_handle = dlopen("libXrandr.so.2", RTLD_LAZY);
 	if (!xrandr_handle) {
 		err = dlerror();
-		fprintf(stderr, "could not load libXrandr.so.2, Error: %s\n", err);
+		// For some arcane reason, NetBSD now ships libXrandr.so.3 while the rest of the world has libXrandr.so.2...
+		// In case this happens for other X11 platforms in the future, let's give it a try too before failing.
+		xrandr_handle = dlopen("libXrandr.so.3", RTLD_LAZY);
+		if (!xrandr_handle) {
+			fprintf(stderr, "could not load libXrandr.so.2, Error: %s\n", err);
+		}
 	} else {
 		XRRQueryVersion(x11_display, &xrandr_major, &xrandr_minor);
 		if (((xrandr_major << 8) | xrandr_minor) >= 0x0105) {

platform/linuxbsd/platform_config.h

@@ -31,7 +31,15 @@
 #ifdef __linux__
 #include <alloca.h>
 #endif
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
-#include <stdlib.h>
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#include <stdlib.h> // alloca
+// FreeBSD and OpenBSD use pthread_set_name_np, while other platforms,
+// include NetBSD, use pthread_setname_np. NetBSD's version however requires
+// a different format, we handle this directly in thread_posix.
+#ifdef __NetBSD__
+#define PTHREAD_NETBSD_SET_NAME
+#else
 #define PTHREAD_BSD_SET_NAME
 #endif
+#endif

platform/server/platform_config.h

@@ -31,10 +31,19 @@
 #if defined(__linux__) || defined(__APPLE__)
 #include <alloca.h>
 #endif
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
-#include <stdlib.h>
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#include <stdlib.h> // alloca
+// FreeBSD and OpenBSD use pthread_set_name_np, while other platforms,
+// include NetBSD, use pthread_setname_np. NetBSD's version however requires
+// a different format, we handle this directly in thread_posix.
+#ifdef __NetBSD__
+#define PTHREAD_NETBSD_SET_NAME
+#else
 #define PTHREAD_BSD_SET_NAME
 #endif
+#endif
+
 #ifdef __APPLE__
 #define PTHREAD_RENAME_SELF
 #endif