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6707273: TrayIcon does not support 8-bit alpha channel in Windows XP

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Reviewed-by: uta, ant
This commit is contained in:
Dmitry Cherepanov 2009-10-22 13:27:28 +04:00
parent b50342c24e
commit 4b2a80c711
1 changed files with 17 additions and 10 deletions
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27
jdk/src/windows/native/sun/windows/awt_TrayIcon.cpp
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@ -59,7 +59,7 @@ struct DisplayMessageStruct {
};
typedef struct tagBitmapheader {
BITMAPINFOHEADER bmiHeader;
BITMAPV5HEADER bmiHeader;
DWORD dwMasks[256];
} Bitmapheader, *LPBITMAPHEADER;
@ -638,12 +638,12 @@ void AwtTrayIcon::UnlinkObjects()
HBITMAP AwtTrayIcon::CreateBMP(HWND hW,int* imageData,int nSS, int nW, int nH)
{
Bitmapheader bmhHeader;
Bitmapheader bmhHeader = {0};
HDC hDC;
char *ptrImageData;
HBITMAP hbmpBitmap;
HBITMAP hBitmap;
int nNumChannels = 3;
int nNumChannels = 4;
if (!hW) {
hW = ::GetDesktopWindow();
@ -653,14 +653,20 @@ HBITMAP AwtTrayIcon::CreateBMP(HWND hW,int* imageData,int nSS, int nW, int nH)
return NULL;
}
memset(&bmhHeader, 0, sizeof(Bitmapheader));
bmhHeader.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmhHeader.bmiHeader.biWidth = nW;
bmhHeader.bmiHeader.biHeight = -nH;
bmhHeader.bmiHeader.biPlanes = 1;
bmhHeader.bmiHeader.bV5Size = sizeof(BITMAPV5HEADER);
bmhHeader.bmiHeader.bV5Width = nW;
bmhHeader.bmiHeader.bV5Height = -nH;
bmhHeader.bmiHeader.bV5Planes = 1;
bmhHeader.bmiHeader.biBitCount = 24;
bmhHeader.bmiHeader.biCompression = BI_RGB;
bmhHeader.bmiHeader.bV5BitCount = 32;
bmhHeader.bmiHeader.bV5Compression = BI_BITFIELDS;
// The following mask specification specifies a supported 32 BPP
// alpha format for Windows XP.
bmhHeader.bmiHeader.bV5RedMask = 0x00FF0000;
bmhHeader.bmiHeader.bV5GreenMask = 0x0000FF00;
bmhHeader.bmiHeader.bV5BlueMask = 0x000000FF;
bmhHeader.bmiHeader.bV5AlphaMask = 0xFF000000;
hbmpBitmap = ::CreateDIBSection(hDC, (BITMAPINFO*)&(bmhHeader),
DIB_RGB_COLORS,
@ -674,6 +680,7 @@ HBITMAP AwtTrayIcon::CreateBMP(HWND hW,int* imageData,int nSS, int nW, int nH)
}
for (int nOutern = 0; nOutern < nH; nOutern++) {
for (int nInner = 0; nInner < nSS; nInner++) {
dstPtr[3] = (*srcPtr >> 0x18) & 0xFF;
dstPtr[2] = (*srcPtr >> 0x10) & 0xFF;
dstPtr[1] = (*srcPtr >> 0x08) & 0xFF;
dstPtr[0] = *srcPtr & 0xFF;