diff options
Diffstat (limited to 'plugins/SecureIM/src/images.cpp')
| -rw-r--r-- | plugins/SecureIM/src/images.cpp | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/plugins/SecureIM/src/images.cpp b/plugins/SecureIM/src/images.cpp new file mode 100644 index 0000000000..eb4c87dea1 --- /dev/null +++ b/plugins/SecureIM/src/images.cpp @@ -0,0 +1,358 @@ +#include "commonheaders.h"
+
+
+void HalfBitmap32Alpha(HBITMAP hBitmap)
+{
+ BITMAP bmp;
+ DWORD dwLen;
+ BYTE *p;
+ int x, y;
+
+ GetObject(hBitmap, sizeof(bmp), &bmp);
+
+ if (bmp.bmBitsPixel != 32)
+ return;
+
+ dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
+ p = (BYTE *)malloc(dwLen);
+ if (p == NULL)
+ return;
+ memset(p, 0, dwLen);
+
+ GetBitmapBits(hBitmap, dwLen, p);
+
+ for (y = 0; y < bmp.bmHeight; ++y) {
+ BYTE *px = p + bmp.bmWidth * 4 * y;
+
+ for (x = 0; x < bmp.bmWidth; ++x)
+ {
+ px[3]>>=1;
+ px += 4;
+ }
+ }
+
+ SetBitmapBits(hBitmap, dwLen, p);
+
+ free(p);
+}
+
+
+// Make a bitmap all transparent, but only if it is a 32bpp
+void MakeBmpTransparent(HBITMAP hBitmap)
+{
+ BITMAP bmp;
+ DWORD dwLen;
+ BYTE *p;
+
+ GetObject(hBitmap, sizeof(bmp), &bmp);
+
+ if (bmp.bmBitsPixel != 32)
+ return;
+
+ dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
+ p = (BYTE *)malloc(dwLen);
+ if (p == NULL)
+ return;
+
+ memset(p, 0, dwLen);
+ SetBitmapBits(hBitmap, dwLen, p);
+
+ free(p);
+}
+
+
+// Correct alpha from bitmaps loaded without it (it cames with 0 and should be 255)
+void CorrectBitmap32Alpha(HBITMAP hBitmap, BOOL force)
+{
+ BITMAP bmp;
+ DWORD dwLen;
+ BYTE *p;
+ int x, y;
+ BOOL fixIt;
+
+ GetObject(hBitmap, sizeof(bmp), &bmp);
+
+ if (bmp.bmBitsPixel != 32)
+ return;
+
+ dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
+ p = (BYTE *)malloc(dwLen);
+ if (p == NULL)
+ return;
+ memset(p, 0, dwLen);
+
+ GetBitmapBits(hBitmap, dwLen, p);
+
+ fixIt = TRUE;
+ for (y = 0; fixIt && y < bmp.bmHeight; ++y) {
+ BYTE *px = p + bmp.bmWidth * 4 * y;
+
+ for (x = 0; fixIt && x < bmp.bmWidth; ++x)
+ {
+ if (px[3] != 0 && !force)
+ {
+ fixIt = FALSE;
+ }
+ else
+ {
+ if (px[0] != 0 || px[1] != 0 || px[2] != 0)
+ px[3] = 255;
+ }
+
+ px += 4;
+ }
+ }
+
+ if (fixIt)
+ SetBitmapBits(hBitmap, dwLen, p);
+
+ free(p);
+}
+
+
+HBITMAP CopyBitmapTo32(HBITMAP hBitmap)
+{
+ BITMAPINFO RGB32BitsBITMAPINFO;
+ BYTE * ptPixels;
+ HBITMAP hDirectBitmap;
+
+ BITMAP bmp;
+ DWORD dwLen;
+ BYTE *p;
+
+ GetObject(hBitmap, sizeof(bmp), &bmp);
+
+ dwLen = bmp.bmWidth * bmp.bmHeight * 4;
+ p = (BYTE *)malloc(dwLen);
+ if (p == NULL)
+ return NULL;
+
+ // Create bitmap
+ ZeroMemory(&RGB32BitsBITMAPINFO, sizeof(BITMAPINFO));
+ RGB32BitsBITMAPINFO.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ RGB32BitsBITMAPINFO.bmiHeader.biWidth = bmp.bmWidth;
+ RGB32BitsBITMAPINFO.bmiHeader.biHeight = bmp.bmHeight;
+ RGB32BitsBITMAPINFO.bmiHeader.biPlanes = 1;
+ RGB32BitsBITMAPINFO.bmiHeader.biBitCount = 32;
+
+ hDirectBitmap = CreateDIBSection(NULL,
+ (BITMAPINFO *)&RGB32BitsBITMAPINFO,
+ DIB_RGB_COLORS,
+ (void **)&ptPixels,
+ NULL, 0);
+
+ // Copy data
+ if (bmp.bmBitsPixel != 32)
+ {
+ HDC hdcOrig, hdcDest;
+ HBITMAP oldOrig, oldDest;
+
+ hdcOrig = CreateCompatibleDC(NULL);
+ oldOrig = (HBITMAP) SelectObject(hdcOrig, hBitmap);
+
+ hdcDest = CreateCompatibleDC(NULL);
+ oldDest = (HBITMAP) SelectObject(hdcDest, hDirectBitmap);
+
+ BitBlt(hdcDest, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcOrig, 0, 0, SRCCOPY);
+
+ SelectObject(hdcDest, oldDest);
+ DeleteObject(hdcDest);
+ SelectObject(hdcOrig, oldOrig);
+ DeleteObject(hdcOrig);
+
+ // Set alpha
+ CorrectBitmap32Alpha(hDirectBitmap, FALSE);
+ }
+ else
+ {
+ GetBitmapBits(hBitmap, dwLen, p);
+ SetBitmapBits(hDirectBitmap, dwLen, p);
+ }
+
+ free(p);
+
+ return hDirectBitmap;
+}
+
+
+HBITMAP CreateBitmap32(int cx, int cy)
+{
+ BITMAPINFO RGB32BitsBITMAPINFO;
+ UINT * ptPixels;
+ HBITMAP DirectBitmap;
+
+ ZeroMemory(&RGB32BitsBITMAPINFO,sizeof(BITMAPINFO));
+ RGB32BitsBITMAPINFO.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ RGB32BitsBITMAPINFO.bmiHeader.biWidth=cx;//bm.bmWidth;
+ RGB32BitsBITMAPINFO.bmiHeader.biHeight=cy;//bm.bmHeight;
+ RGB32BitsBITMAPINFO.bmiHeader.biPlanes=1;
+ RGB32BitsBITMAPINFO.bmiHeader.biBitCount=32;
+
+ DirectBitmap = CreateDIBSection(NULL,
+ (BITMAPINFO *)&RGB32BitsBITMAPINFO,
+ DIB_RGB_COLORS,
+ (void **)&ptPixels,
+ NULL, 0);
+ return DirectBitmap;
+}
+
+
+BOOL MakeBitmap32(HBITMAP *hBitmap)
+{
+ BITMAP bmp;
+
+ GetObject(*hBitmap, sizeof(bmp), &bmp);
+
+ if (bmp.bmBitsPixel != 32) {
+ // Convert to 32 bpp
+ HBITMAP hBmpTmp = CopyBitmapTo32(*hBitmap);
+ DeleteObject(*hBitmap);
+ *hBitmap = hBmpTmp;
+ }
+
+ return TRUE;
+}
+
+
+#define GET_PIXEL(__P__, __X__, __Y__) ( __P__ + width * 4 * (__Y__) + 4 * (__X__))
+
+BOOL MakeGrayscale(HBITMAP *hBitmap)
+{
+ BYTE *p = NULL;
+ BYTE *p1;
+ DWORD dwLen;
+ int width, height, x, y;
+ BITMAP bmp;
+
+ GetObject(*hBitmap, sizeof(bmp), &bmp);
+ width = bmp.bmWidth;
+ height = bmp.bmHeight;
+
+ dwLen = width * height * 4;
+ p = (BYTE *)malloc(dwLen);
+ if (p == NULL)
+ {
+ return FALSE;
+ }
+
+ if (bmp.bmBitsPixel != 32)
+ {
+ // Convert to 32 bpp
+ HBITMAP hBmpTmp = CopyBitmapTo32(*hBitmap);
+ DeleteObject(*hBitmap);
+ *hBitmap = hBmpTmp;
+ }
+ GetBitmapBits(*hBitmap, dwLen, p);
+
+ // Make grayscale
+ for (y = 0 ; y < height ; y++)
+ {
+ for (x = 0 ; x < width ; x++)
+ {
+ p1 = GET_PIXEL(p, x, y);
+ p1[0] = p1[1] = p1[2] = ( p1[0] + p1[1] + p1[2] ) / 3;
+ }
+ }
+
+ dwLen = SetBitmapBits(*hBitmap, dwLen, p);
+ free(p);
+
+ return TRUE;
+}
+
+
+HICON MakeHalfAlphaIcon(HICON SourceIcon)
+{
+ ICONINFO TargetIconInfo;
+ BITMAP TargetBitmapInfo;
+ HICON TargetIcon, TempIcon;
+
+ TempIcon = CopyIcon(SourceIcon);
+ if ( !GetIconInfo(TempIcon, &TargetIconInfo))
+ return NULL;
+
+ if ( !GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo))
+ return NULL;
+
+ MakeBitmap32(&TargetIconInfo.hbmColor);
+ HalfBitmap32Alpha(TargetIconInfo.hbmColor);
+ TargetIcon = CreateIconIndirect(&TargetIconInfo);
+
+ DestroyIcon(TempIcon);
+ DeleteObject(TargetIconInfo.hbmColor);
+ DeleteObject(TargetIconInfo.hbmMask);
+ return TargetIcon;
+}
+
+
+HICON MakeGrayscaleIcon(HICON SourceIcon)
+{
+ ICONINFO TargetIconInfo;
+ BITMAP TargetBitmapInfo;
+ HICON TargetIcon, TempIcon;
+
+ TempIcon = CopyIcon(SourceIcon);
+ if (! GetIconInfo(TempIcon, &TargetIconInfo) || GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo)==0) return NULL;
+
+ MakeGrayscale(&TargetIconInfo.hbmColor);
+
+ TargetIcon = CreateIconIndirect(&TargetIconInfo);
+ DestroyIcon(TempIcon);
+
+ return TargetIcon;
+}
+
+
+HICON BindOverlayIcon(HICON SourceIcon,HICON OverlayIcon)
+{
+ ICONINFO OverlayIconInfo, TargetIconInfo;
+ BITMAP OverlayBitmapInfo, TargetBitmapInfo;
+ HBITMAP OldOverlayBitmap, OldTargetBitmap;
+ HICON TargetIcon, TempIcon;
+ HDC OverlayDC, TargetDC;
+ BLENDFUNCTION bf = {0,0,255,1};
+
+ TempIcon = CopyIcon(SourceIcon);
+ if ( !GetIconInfo( TempIcon, &TargetIconInfo ))
+ return NULL;
+
+ MakeBitmap32(&TargetIconInfo.hbmColor);
+ CorrectBitmap32Alpha(TargetIconInfo.hbmColor, FALSE);
+ GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo);
+
+ if ( !GetIconInfo(OverlayIcon, &OverlayIconInfo) || !GetObject(OverlayIconInfo.hbmColor, sizeof(BITMAP), &OverlayBitmapInfo))
+ return NULL;
+
+ TargetDC = CreateCompatibleDC(NULL);
+ OldTargetBitmap = (HBITMAP)SelectObject(TargetDC, TargetIconInfo.hbmColor);
+
+ OverlayDC = CreateCompatibleDC(NULL);
+ OldOverlayBitmap = (HBITMAP)SelectObject(OverlayDC, OverlayIconInfo.hbmColor);
+
+ AlphaBlend(TargetDC, 0, 0, TargetBitmapInfo.bmWidth, TargetBitmapInfo.bmHeight,
+ OverlayDC, 0, 0, OverlayBitmapInfo.bmWidth, OverlayBitmapInfo.bmHeight, bf);
+
+ SelectObject(TargetDC, TargetIconInfo.hbmMask);
+ SelectObject(OverlayDC, OverlayIconInfo.hbmMask);
+
+ BitBlt(TargetDC, 0, 0, TargetBitmapInfo.bmWidth, TargetBitmapInfo.bmHeight,
+ OverlayDC, 0, 0, SRCCOPY);
+
+ TargetIcon = CreateIconIndirect(&TargetIconInfo);
+ DestroyIcon(TempIcon);
+
+ SelectObject(TargetDC, OldTargetBitmap);
+ DeleteObject(TargetIconInfo.hbmColor);
+ DeleteObject(TargetIconInfo.hbmMask);
+ DeleteDC(TargetDC);
+
+ SelectObject(OverlayDC, OldOverlayBitmap);
+ DeleteObject(OverlayIconInfo.hbmColor);
+ DeleteObject(OverlayIconInfo.hbmMask);
+ DeleteDC(OverlayDC);
+
+ return TargetIcon;
+}
+
+
+// EOF
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