GlueGen proper size / alignment of primitive and compound types usage [1/2] - Preparation.

Currently GlueGen fails for type long (size) and some alignments (see package.html).
  - The size and alignment values shall be queried at runtime.
  - Compound alignment needs to follow the described natural alignment (also @runtime).
  -

- Build
  - add Linux Arm7 (EABI)

- junit test
  - added compound/struct tests, pointing out the shortcomings of current impl.

- package.html
  - Added alignment documentation

- remove intptr.cfg

- add GluGen types int8_t, int16_t, uint8_t, uint16_t

- move MachineDescription* into runtime

- Platform
  - has runtime MachineDescription

  - moved size, .. to MachineDescription

  - use enums for OSType, CPUArch and CPUType defined by os.name/os.arch,
    triggering exception if os/arch is not supported.
    This avoids Java String comparison and conscious os/arch detection.

- MachineDescription:

  - compile time instances MachineDescription32Bits, MachineDescription64Bits

  - runtime queried instance MachineDescriptionRuntime

     - correct size, alignment, page size, ..

2 files changed, 174 insertions, 29 deletions

diff --git a/src/native/common/MachineDescriptionRuntime.c b/src/native/common/MachineDescriptionRuntime.c
new file mode 100644
index 0000000..4cd6088
--- /dev/null
+++ b/src/native/common/MachineDescriptionRuntime.c
@@ -0,0 +1,174 @@
+
+#include <jni.h>
+
+#include <assert.h>
+
+#include "jogamp_common_os_MachineDescriptionRuntime.h"
+
+#if defined(_WIN32)
+    #include <windows.h>
+#else /* assume POSIX sysconf() availability */
+    #include <unistd.h>
+#endif
+
+#include <gluegen_stdint.h>
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getPointerSizeInBytesImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(void *);
+}
+
+JNIEXPORT jlong JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getPageSizeInBytesImpl(JNIEnv *env, jclass _unused) {
+#if defined(_WIN32)
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    return (jlong) si.dwPageSize;
+#else
+    return (jlong) sysconf(_SC_PAGESIZE);
+#endif
+}
+
+typedef struct { 
+    int8_t      c1;
+    int8_t      v;
+} struct_alignment_int8;
+
+typedef struct { 
+    int8_t      c1;
+    int16_t     v;
+} struct_alignment_int16;
+
+typedef struct { 
+    int8_t      c1;
+    int32_t      v;
+} struct_alignment_int32;
+
+typedef struct { 
+    int8_t      c1;
+    int64_t      v;
+} struct_alignment_int64;
+
+typedef struct { 
+    int8_t      c1;
+    char        v;
+} struct_alignment_char;
+
+typedef struct { 
+    int8_t      c1;
+    short        v;
+} struct_alignment_short;
+
+typedef struct { 
+    int8_t      c1;
+    int         v;
+} struct_alignment_int;
+
+typedef struct { 
+    int8_t      c1;
+    long        v;
+} struct_alignment_long;
+
+typedef struct { 
+    int8_t      c1;
+    void *     v;
+} struct_alignment_pointer;
+
+typedef struct { 
+    int8_t      c1;
+    float     v;
+} struct_alignment_float;
+
+typedef struct { 
+    int8_t      c1;
+    double     v;
+} struct_alignment_double;
+
+// size_t padding(size_t totalsize, size_t typesize)   { return totalsize - typesize - sizeof(char); }
+static size_t alignment(size_t totalsize, size_t typesize) { return totalsize - typesize; }
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentInt8Impl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_int8 ), sizeof(int8_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentInt16Impl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_int16 ), sizeof(int16_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentInt32Impl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_int32 ), sizeof(int32_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentInt64Impl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_int64 ), sizeof(int64_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentCharImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_char ), sizeof(char));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentShortImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_short ), sizeof(short));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentIntImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_int ), sizeof(int));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentLongImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_long ), sizeof(long));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentPointerImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_pointer ), sizeof(void *));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentFloatImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_float ), sizeof(float));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getAlignmentDoubleImpl(JNIEnv *env, jclass _unused) {
+    return alignment(sizeof( struct_alignment_double ), sizeof(double));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfCharImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(char);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfShortImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(short);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfIntImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(int);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfLongImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(long);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfFloatImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(float);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jogamp_common_os_MachineDescriptionRuntime_getSizeOfDoubleImpl(JNIEnv *env, jclass _unused) {
+    return sizeof(double);
+}
+
diff --git a/src/native/common/Platform.c b/src/native/common/Platform.c
deleted file mode 100644
index c385e12..0000000
--- a/src/native/common/Platform.c
+++ /dev/null
@@ -1,29 +0,0 @@
-
-#include <jni.h>
-
-#include <assert.h>
-
-#include "com_jogamp_common_os_Platform.h"
-
-#if defined(_WIN32)
-    #include <windows.h>
-#else /* assume POSIX sysconf() availability */
-    #include <unistd.h>
-#endif
-
-JNIEXPORT jint JNICALL 
-Java_com_jogamp_common_os_Platform_getPointerSizeInBitsImpl(JNIEnv *env, jclass _unused) {
-    return sizeof(void *) * 8;
-}
-
-JNIEXPORT jlong JNICALL 
-Java_com_jogamp_common_os_Platform_getPageSizeImpl(JNIEnv *env, jclass _unused) {
-#if defined(_WIN32)
-    SYSTEM_INFO si;
-    GetSystemInfo(&si);
-    return (jlong) si.dwPageSize;
-#else
-    return (jlong) sysconf(_SC_PAGESIZE);
-#endif
-}
-