Windows: Restore the old ToAscii code used on win9x platforms in an attempt to fix broken keyboard input on win98se machines.
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@ -51,7 +51,9 @@ final class WindowsKeyboard {
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private final WindowsDirectInputDevice keyboard;
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private final IntBuffer temp_data_buffer;
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private final ByteBuffer keyboard_state;
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private final boolean unicode;
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private final CharBuffer unicode_buffer;
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private final ByteBuffer ascii_buffer;
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public WindowsKeyboard(WindowsDirectInput dinput, long hwnd) throws LWJGLException {
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this.dinput = dinput;
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@ -72,9 +74,19 @@ final class WindowsKeyboard {
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keyboard.acquire();
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temp_data_buffer = BufferUtils.createIntBuffer(BUFFER_SIZE*WindowsDirectInputDevice.DATA_SIZE);
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keyboard_state = BufferUtils.createByteBuffer(256);
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unicode_buffer = BufferUtils.createCharBuffer(BUFFER_SIZE);
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unicode = isWindowsNT();
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if (unicode) {
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unicode_buffer = BufferUtils.createCharBuffer(BUFFER_SIZE);
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ascii_buffer = null;
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} else {
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unicode_buffer = null;
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// ToAscii returns at most 2 characters
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ascii_buffer = BufferUtils.createByteBuffer(2);
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}
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}
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private static native boolean isWindowsNT();
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public void destroy() {
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keyboard.unacquire();
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keyboard.release();
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@ -117,12 +129,22 @@ final class WindowsKeyboard {
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if (virt_key != 0 && GetKeyboardState(keyboard_state) != 0) {
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// Mark key down in the scan code
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dwOfs = dwOfs & 0x7fff;
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unicode_buffer.clear();
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int num_chars = ToUnicode(virt_key,
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int num_chars;
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if (unicode) {
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unicode_buffer.clear();
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num_chars = ToUnicode(virt_key,
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dwOfs,
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keyboard_state,
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unicode_buffer,
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unicode_buffer.capacity(), 0);
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} else {
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ascii_buffer.clear();
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num_chars = ToAscii(virt_key,
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dwOfs,
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keyboard_state,
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ascii_buffer,
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0);
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}
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if (num_chars > 0) {
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int current_char = 0;
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do {
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@ -130,7 +152,12 @@ final class WindowsKeyboard {
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dst.putInt(0);
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dst.put((byte)0);
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}
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int char_int = ((int)unicode_buffer.get()) & 0xFFFF;
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int char_int;
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if (unicode) {
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char_int = ((int)unicode_buffer.get()) & 0xFFFF;
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} else {
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char_int = ((int)ascii_buffer.get()) & 0xFF;
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}
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dst.putInt(char_int);
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dst.putLong(nanos);
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current_char++;
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@ -151,6 +178,7 @@ final class WindowsKeyboard {
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}
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private static native int MapVirtualKey(int uCode, int uMapType);
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private static native int ToUnicode(int wVirtKey, int wScanCode, ByteBuffer lpKeyState, CharBuffer pwszBuff, int cchBuff, int flags);
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private static native int ToAscii(int wVirtKey, int wScanCode, ByteBuffer lpKeyState, ByteBuffer lpChar, int flags);
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private static native int GetKeyboardState(ByteBuffer lpKeyState);
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public void read(ByteBuffer buffer) {
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@ -45,12 +45,26 @@ JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_WindowsKeyboard_MapVirtualKey(JNIEn
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return MapVirtualKey(uCode, uMapType);
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}
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_WindowsKeyboard_isWindowsNT(JNIEnv *env, jclass unused) {
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OSVERSIONINFO osvi;
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osvi.dwOSVersionInfoSize = sizeof(osvi);
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GetVersionEx(&osvi);
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return osvi.dwPlatformId == VER_PLATFORM_WIN32_NT ? JNI_TRUE : JNI_FALSE;
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_WindowsKeyboard_ToUnicode(JNIEnv *env, jclass unused, jint wVirtKey, jint wScanCode, jobject lpKeyState_obj, jobject pwszBuff_obj, jint cchBuff, jint flags) {
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const PBYTE lpKeyState = (*env)->GetDirectBufferAddress(env, lpKeyState_obj);
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LPWSTR pwszBuff = (*env)->GetDirectBufferAddress(env, pwszBuff_obj);
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return ToUnicode(wVirtKey, wScanCode, lpKeyState, pwszBuff, cchBuff, flags);
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_WindowsKeyboard_ToAscii(JNIEnv *env, jclass unused, jint wVirtKey, jint wScanCode, jobject lpKeyState_obj, jobject lpChar_obj, jint flags) {
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const PBYTE lpKeyState = (*env)->GetDirectBufferAddress(env, lpKeyState_obj);
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LPWORD lpChar = (*env)->GetDirectBufferAddress(env, lpChar_obj);
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return ToAscii(wVirtKey, wScanCode, lpKeyState, lpChar, flags);
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_WindowsKeyboard_GetKeyboardState(JNIEnv *env, jclass unused, jobject lpKeyState_obj) {
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PBYTE lpKeyState = (*env)->GetDirectBufferAddress(env, lpKeyState_obj);
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return GetKeyboardState(lpKeyState);
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