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-rw-r--r--src/java/jogamp/common/os/MachineDescriptionRuntime.java94
1 files changed, 63 insertions, 31 deletions
diff --git a/src/java/jogamp/common/os/MachineDescriptionRuntime.java b/src/java/jogamp/common/os/MachineDescriptionRuntime.java
index a5ecc1d..bf49105 100644
--- a/src/java/jogamp/common/os/MachineDescriptionRuntime.java
+++ b/src/java/jogamp/common/os/MachineDescriptionRuntime.java
@@ -28,64 +28,96 @@
package jogamp.common.os;
-import com.jogamp.common.nio.Buffers;
import com.jogamp.common.os.MachineDescription;
import com.jogamp.common.os.NativeLibrary;
import com.jogamp.common.os.Platform;
-
-import java.nio.ByteBuffer;
-import java.nio.IntBuffer;
-import java.nio.ShortBuffer;
+import com.jogamp.common.os.MachineDescription.StaticConfig;
/**
* Runtime MachineDescription
*/
public class MachineDescriptionRuntime {
- public static MachineDescription getMachineDescription(boolean is32BitByCPUArch) {
- boolean libsLoaded = true;
+ static volatile boolean smdQueried = false;
+ static MachineDescription.StaticConfig smd = null;
+
+ public static MachineDescription.StaticConfig getStatic() {
+ if(!smdQueried) {
+ synchronized(MachineDescription.class) { // volatile dbl-checked-locking OK
+ if(!smdQueried) {
+ smd = getStaticImpl();
+ smdQueried=true;
+ }
+ }
+ }
+ return smd;
+ }
+ private static MachineDescription.StaticConfig getStaticImpl() {
+ if(Platform.isCPUArch32Bit()) {
+ if(Platform.getCPUFamily() == Platform.CPUFamily.ARM && Platform.isLittleEndian()) {
+ return StaticConfig.ARMle_EABI;
+ } else if(Platform.getOSType() == Platform.OSType.WINDOWS) {
+ return StaticConfig.X86_32_WINDOWS;
+ }
+ return StaticConfig.X86_32_UNIX;
+ } else {
+ if(Platform.getOSType() == Platform.OSType.WINDOWS) {
+ return StaticConfig.X86_64_WINDOWS;
+ }
+ return StaticConfig.X86_64_UNIX;
+ }
+ }
+
+ static volatile boolean rmdQueried = false;
+ static MachineDescription rmd = null;
+
+ public static MachineDescription getRuntime() {
+ if(!rmdQueried) {
+ synchronized(MachineDescription.class) { // volatile dbl-checked-locking OK
+ if(!rmdQueried) {
+ rmd = getRuntimeImpl();
+ rmdQueried=true;
+ }
+ }
+ }
+ return rmd;
+ }
+ private static MachineDescription getRuntimeImpl() {
try {
NativeLibrary.ensureNativeLibLoaded();
} catch (UnsatisfiedLinkError err) {
- libsLoaded = false;
+ return null;
}
- if(libsLoaded) {
- int pointerSizeInBytes = getPointerSizeInBytesImpl();
- switch(pointerSizeInBytes) {
- case 4:
- case 8:
- break;
- default:
- throw new RuntimeException("Unsupported pointer size "+pointerSizeInBytes+"bytes, please implement.");
- }
-
- final long pageSizeL = getPageSizeInBytesImpl();
- if(Integer.MAX_VALUE < pageSizeL) {
- throw new InternalError("PageSize exceeds integer value: " + pageSizeL);
- }
-
- return getMachineDescriptionImpl(pointerSizeInBytes, (int) pageSizeL);
- } else {
- return MachineDescription.createStatic(is32BitByCPUArch);
+ int pointerSizeInBytes = getPointerSizeInBytesImpl();
+ switch(pointerSizeInBytes) {
+ case 4:
+ case 8:
+ break;
+ default:
+ throw new RuntimeException("Unsupported pointer size "+pointerSizeInBytes+"bytes, please implement.");
}
- }
- private static MachineDescription getMachineDescriptionImpl(int pointerSize, int pageSize) {
+ final long pageSizeL = getPageSizeInBytesImpl();
+ if(Integer.MAX_VALUE < pageSizeL) {
+ throw new InternalError("PageSize exceeds integer value: " + pageSizeL);
+ }
+
// size: int, long, float, double, pointer, pageSize
// alignment: int8, int16, int32, int64, int, long, float, double, pointer
return new MachineDescription(
- true /* runtime validated */, MachineDescription.queryIsLittleEndian(),
+ true /* runtime validated */, Platform.isLittleEndian(),
getSizeOfIntImpl(), getSizeOfLongImpl(),
- getSizeOfFloatImpl(), getSizeOfDoubleImpl(), getSizeOfLongDoubleImpl(), pointerSize, pageSize,
+ getSizeOfFloatImpl(), getSizeOfDoubleImpl(), getSizeOfLongDoubleImpl(),
+ pointerSizeInBytes, (int)pageSizeL,
getAlignmentInt8Impl(), getAlignmentInt16Impl(), getAlignmentInt32Impl(), getAlignmentInt64Impl(),
getAlignmentIntImpl(), getAlignmentLongImpl(),
getAlignmentFloatImpl(), getAlignmentDoubleImpl(), getAlignmentLongDoubleImpl(),
getAlignmentPointerImpl());
}
-
+
private static native int getPointerSizeInBytesImpl();
private static native long getPageSizeInBytesImpl();