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-rw-r--r--src/nativewindow/native/win32/GDImisc.c232
1 files changed, 111 insertions, 121 deletions
diff --git a/src/nativewindow/native/win32/GDImisc.c b/src/nativewindow/native/win32/GDImisc.c
index 40f42f285..d3ac3873c 100644
--- a/src/nativewindow/native/win32/GDImisc.c
+++ b/src/nativewindow/native/win32/GDImisc.c
@@ -31,7 +31,7 @@ static const char * const ClazzNamePointCstrSignature = "(II)V";
static jclass pointClz = NULL;
static jmethodID pointCstr = NULL;
-static DWORD threadid = 0;
+static volatile DWORD threadid = 0;
typedef struct ThreadParam_s
{
@@ -42,8 +42,8 @@ typedef struct ThreadParam_s
jint y;
jint width;
jint height;
- volatile HWND *hWndPtr;
- volatile BOOL *threadReady;
+ volatile HWND hWnd;
+ volatile BOOL threadReady;
} ThreadParam;
#define TM_OPENWIN WM_APP+1
@@ -52,69 +52,60 @@ typedef struct ThreadParam_s
DWORD WINAPI ThreadFunc(LPVOID param)
{
- MSG msg;
- BOOL bRet;
- ThreadParam *startupThreadParam = (ThreadParam*)param;
-
- /* there can not be any messages for us now, as the creator waits for
- threadReady before continuing, but we must use this PeekMessage() to
- create the thread message queue */
- PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE);
-
- /* now we can safely say: we have a qeue and are ready to receive messages */
- *(startupThreadParam->threadReady) = TRUE;
-
- while( (bRet = GetMessage( &msg, NULL, 0, 0 )) != 0)
- {
- if (bRet == -1)
- {
- return 0;
- }
- else
- {
- switch(msg.message)
- {
- case TM_OPENWIN:
- {
- ThreadParam *tParam = (ThreadParam*)msg.wParam;
- HINSTANCE hInstance = (HINSTANCE) (intptr_t) tParam->jHInstance;
- DWORD dwExStyle;
- DWORD dwStyle;
-
- dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
- dwStyle = WS_OVERLAPPEDWINDOW;
-
- HWND hwnd = CreateWindowEx( dwExStyle,
- tParam->wndClassName,
- tParam->wndName,
- dwStyle | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
- tParam->x, tParam->y, tParam->width, tParam->height,
- NULL, NULL, hInstance, NULL );
-
- *(tParam->hWndPtr) = hwnd;
- *(tParam->threadReady) = TRUE;
- }
- break;
- case TM_CLOSEWIN:
- {
- ThreadParam *tParam = (ThreadParam*)msg.wParam;
- HWND hwnd = *(tParam->hWndPtr);
- DestroyWindow(hwnd);
- *(tParam->threadReady) = TRUE;
- }
- break;
- case TM_STOP:
- return 0;
- break;
- default:
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- break;
- }
- }
+ MSG msg;
+ BOOL bRet;
+ ThreadParam *startupThreadParam = (ThreadParam*)param;
+
+ /* there can not be any messages for us now, as the creator waits for
+ threadReady before continuing, but we must use this PeekMessage() to
+ create the thread message queue */
+ PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE);
+
+ /* now we can safely say: we have a qeue and are ready to receive messages */
+ startupThreadParam->threadReady = TRUE;
+
+ while( (bRet = GetMessage( &msg, NULL, 0, 0 )) != 0) {
+ if (bRet == -1) {
+ return 0;
+ } else {
+ switch(msg.message) {
+ case TM_OPENWIN: {
+ ThreadParam *tParam = (ThreadParam*)msg.wParam;
+ HINSTANCE hInstance = (HINSTANCE) (intptr_t) tParam->jHInstance;
+ DWORD dwExStyle;
+ DWORD dwStyle;
+
+ dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
+ dwStyle = WS_OVERLAPPEDWINDOW;
+
+ HWND hwnd = CreateWindowEx( dwExStyle,
+ tParam->wndClassName,
+ tParam->wndName,
+ dwStyle | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+ tParam->x, tParam->y, tParam->width, tParam->height,
+ NULL, NULL, hInstance, NULL );
+
+ tParam->hWnd = hwnd;
+ tParam->threadReady = TRUE;
+ }
+ break;
+ case TM_CLOSEWIN: {
+ ThreadParam *tParam = (ThreadParam*)msg.wParam;
+ HWND hwnd = tParam->hWnd;
+ DestroyWindow(hwnd);
+ tParam->threadReady = TRUE;
+ }
+ break;
+ case TM_STOP:
+ return 0;
+ default:
+ TranslateMessage(&msg);
+ DispatchMessage(&msg);
+ break;
+ }
+ }
}
-
- return 0;
+ return 0;
} /* ThreadFunc */
@@ -129,13 +120,18 @@ HINSTANCE GetApplicationHandle() {
*/
JNIEXPORT jboolean JNICALL
Java_jogamp_nativewindow_windows_GDIUtil_CreateWindowClass
- (JNIEnv *env, jclass _unused, jlong jHInstance, jstring jClazzName, jlong wndProc)
+ (JNIEnv *env, jclass _unused, jlong jHInstance, jstring jClazzName, jlong wndProc)
{
HINSTANCE hInstance = (HINSTANCE) (intptr_t) jHInstance;
const TCHAR* clazzName = NULL;
WNDCLASS wc;
jboolean res;
+ if( 0 != threadid ) {
+ NativewindowCommon_throwNewRuntimeException(env, "Native threadid already created 0x%X", (int)threadid);
+ return JNI_FALSE;
+ }
+
#ifdef UNICODE
clazzName = NewtCommon_GetNullTerminatedStringChars(env, jClazzName);
#else
@@ -146,7 +142,7 @@ Java_jogamp_nativewindow_windows_GDIUtil_CreateWindowClass
if( GetClassInfo( hInstance, clazzName, &wc ) ) {
// registered already
res = JNI_TRUE;
- } else {
+ } else {
// register now
ZeroMemory( &wc, sizeof( wc ) );
wc.style = CS_HREDRAW | CS_VREDRAW ;
@@ -168,26 +164,16 @@ Java_jogamp_nativewindow_windows_GDIUtil_CreateWindowClass
(*env)->ReleaseStringUTFChars(env, jClazzName, clazzName);
#endif
- if(res == JNI_TRUE)
- {
- volatile BOOL threadReady = FALSE;
- ThreadParam tParam = {0};
- tParam.threadReady = &threadReady;
-
- CreateThread(NULL, 0, ThreadFunc, (LPVOID)&tParam, 0, &(threadid));
- if(threadid)
- {
- while(1)
- {
- if(threadReady)
- break;
- }
- }
- else
- {
- res = JNI_FALSE;
- }
- }
+ if( JNI_TRUE == res ) {
+ ThreadParam tParam = {0};
+
+ CreateThread(NULL, 0, ThreadFunc, (LPVOID)&tParam, 0, (DWORD *)&threadid);
+ if(threadid) {
+ while(!tParam.threadReady) { /* nop */ }
+ } else {
+ res = JNI_FALSE;
+ }
+ }
return res;
}
@@ -219,6 +205,11 @@ Java_jogamp_nativewindow_windows_GDIUtil_DestroyWindowClass
(*env)->ReleaseStringUTFChars(env, jClazzName, clazzName);
#endif
+ if( 0 == threadid ) {
+ NativewindowCommon_throwNewRuntimeException(env, "Native threadid zero 0x%X", (int)threadid);
+ return JNI_FALSE;
+ }
+
PostThreadMessage(threadid, TM_STOP, 0, 0);
return res;
@@ -233,17 +224,21 @@ JNIEXPORT jlong JNICALL
Java_jogamp_nativewindow_windows_GDIUtil_CreateDummyWindowAndMessageLoop
(JNIEnv *env, jclass _unused, jlong jHInstance, jstring jWndClassName, jstring jWndName, jint x, jint y, jint width, jint height)
{
- volatile HWND hWnd = 0;
- volatile BOOL threadReady = FALSE;
- ThreadParam tParam = {0};
-
- tParam.jHInstance = jHInstance;
- tParam.x = x;
- tParam.y = y;
- tParam.width = width;
- tParam.height = height;
- tParam.hWndPtr = &hWnd;
- tParam.threadReady = &threadReady;
+ volatile HWND hWnd = 0;
+ ThreadParam tParam = {0};
+
+ if( 0 == threadid ) {
+ NativewindowCommon_throwNewRuntimeException(env, "Native threadid zero 0x%X", (int)threadid);
+ return JNI_FALSE;
+ }
+
+ tParam.jHInstance = jHInstance;
+ tParam.x = x;
+ tParam.y = y;
+ tParam.width = width;
+ tParam.height = height;
+ tParam.hWnd = hWnd;
+ tParam.threadReady = FALSE;
#ifdef UNICODE
tParam.wndClassName = NewtCommon_GetNullTerminatedStringChars(env, jWndClassName);
@@ -253,13 +248,9 @@ Java_jogamp_nativewindow_windows_GDIUtil_CreateDummyWindowAndMessageLoop
tParam.wndName = (*env)->GetStringUTFChars(env, jWndName, NULL);
#endif
- PostThreadMessage(threadid, TM_OPENWIN, (WPARAM)&tParam, 0);
+ PostThreadMessage(threadid, TM_OPENWIN, (WPARAM)&tParam, 0);
- while(1)
- {
- if(threadReady)
- break;
- }
+ while(!tParam.threadReady) { /* nop */ }
#ifdef UNICODE
free((void*) tParam.wndClassName);
@@ -269,7 +260,7 @@ Java_jogamp_nativewindow_windows_GDIUtil_CreateDummyWindowAndMessageLoop
(*env)->ReleaseStringUTFChars(env, jWndName, tParam.wndName);
#endif
- return (jlong) (intptr_t) hWnd;
+ return (jlong) (intptr_t) hWnd;
}
/* Java->C glue code:
@@ -345,9 +336,8 @@ JNIEXPORT jboolean JNICALL Java_jogamp_nativewindow_windows_GDIUtil_initIDs0
return JNI_TRUE;
}
-LRESULT CALLBACK DummyWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
-{
- return DefWindowProc(hWnd,uMsg,wParam,lParam);
+LRESULT CALLBACK DummyWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ return DefWindowProc(hWnd,uMsg,wParam,lParam);
}
/*
@@ -358,7 +348,7 @@ LRESULT CALLBACK DummyWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara
JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_windows_GDIUtil_getDummyWndProc0
(JNIEnv *env, jclass clazz)
{
- return (jlong) (intptr_t) DummyWndProc;
+ return (jlong) (intptr_t) DummyWndProc;
}
/*
@@ -415,21 +405,21 @@ JNIEXPORT jboolean JNICALL Java_jogamp_nativewindow_windows_GDIUtil_IsUndecorate
JNIEXPORT jboolean JNICALL Java_jogamp_nativewindow_windows_GDIUtil_SendCloseMessage
(JNIEnv *env, jclass unused, jlong jwin)
{
- ThreadParam tParam = {0};
- volatile HWND hwnd = (HWND) (intptr_t) jwin;
- volatile BOOL threadReady = FALSE;
+ ThreadParam tParam = {0};
+ volatile HWND hwnd = (HWND) (intptr_t) jwin;
- tParam.hWndPtr = &(hwnd);
- tParam.threadReady = &(threadReady);
+ if( 0 == threadid ) {
+ NativewindowCommon_throwNewRuntimeException(env, "Native threadid zero 0x%X", (int)threadid);
+ return JNI_FALSE;
+ }
- PostThreadMessage(threadid, TM_CLOSEWIN, (WPARAM)&tParam, 0);
+ tParam.hWnd = hwnd;
+ tParam.threadReady = FALSE;
- while(1)
- {
- if(threadReady)
- break;
- }
+ PostThreadMessage(threadid, TM_CLOSEWIN, (WPARAM)&tParam, 0);
- return JNI_TRUE;
+ while(!tParam.threadReady) { /* nop */ }
+
+ return JNI_TRUE;
}