Import Upstream version 2.0.0+dfsgupstream/2.0.0+dfsg

1 files changed, 152 insertions, 0 deletions

diff --git a/src/lib/platform/MSWindowsClipboardBitmapConverter.cpp b/src/lib/platform/MSWindowsClipboardBitmapConverter.cpp
new file mode 100644
index 0000000..16bd4bf
--- /dev/null
+++ b/src/lib/platform/MSWindowsClipboardBitmapConverter.cpp
@@ -0,0 +1,152 @@
+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2012-2016 Symless Ltd.
+ * Copyright (C) 2004 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file LICENSE that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "platform/MSWindowsClipboardBitmapConverter.h"
+
+#include "base/Log.h"
+
+//
+// MSWindowsClipboardBitmapConverter
+//
+
+MSWindowsClipboardBitmapConverter::MSWindowsClipboardBitmapConverter()
+{
+    // do nothing
+}
+
+MSWindowsClipboardBitmapConverter::~MSWindowsClipboardBitmapConverter()
+{
+    // do nothing
+}
+
+IClipboard::EFormat
+MSWindowsClipboardBitmapConverter::getFormat() const
+{
+    return IClipboard::kBitmap;
+}
+
+UINT
+MSWindowsClipboardBitmapConverter::getWin32Format() const
+{
+    return CF_DIB;
+}
+
+HANDLE
+MSWindowsClipboardBitmapConverter::fromIClipboard(const String& data) const
+{
+    // copy to memory handle
+    HGLOBAL gData = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, data.size());
+    if (gData != NULL) {
+        // get a pointer to the allocated memory
+        char* dst = (char*)GlobalLock(gData);
+        if (dst != NULL) {
+            memcpy(dst, data.data(), data.size());
+            GlobalUnlock(gData);
+        }
+        else {
+            GlobalFree(gData);
+            gData = NULL;
+        }
+    }
+
+    return gData;
+}
+
+String
+MSWindowsClipboardBitmapConverter::toIClipboard(HANDLE data) const
+{
+    // get datator
+    LPVOID src = GlobalLock(data);
+    if (src == NULL) {
+        return String();
+    }
+    UInt32 srcSize = (UInt32)GlobalSize(data);
+
+    // check image type
+    const BITMAPINFO* bitmap = static_cast<const BITMAPINFO*>(src);
+    LOG((CLOG_INFO "bitmap: %dx%d %d", bitmap->bmiHeader.biWidth, bitmap->bmiHeader.biHeight, (int)bitmap->bmiHeader.biBitCount));
+    if (bitmap->bmiHeader.biPlanes == 1 &&
+        (bitmap->bmiHeader.biBitCount == 24 ||
+        bitmap->bmiHeader.biBitCount == 32) &&
+        bitmap->bmiHeader.biCompression == BI_RGB) {
+        // already in canonical form
+        String image(static_cast<char const*>(src), srcSize);
+        GlobalUnlock(data);
+        return image;
+    }
+
+    // create a destination DIB section
+    LOG((CLOG_INFO "convert image from: depth=%d comp=%d", bitmap->bmiHeader.biBitCount, bitmap->bmiHeader.biCompression));
+    void* raw;
+    BITMAPINFOHEADER info;
+    LONG w               = bitmap->bmiHeader.biWidth;
+    LONG h               = bitmap->bmiHeader.biHeight;
+    info.biSize          = sizeof(BITMAPINFOHEADER);
+    info.biWidth         = w;
+    info.biHeight        = h;
+    info.biPlanes        = 1;
+    info.biBitCount      = 32;
+    info.biCompression   = BI_RGB;
+    info.biSizeImage     = 0;
+    info.biXPelsPerMeter = 1000;
+    info.biYPelsPerMeter = 1000;
+    info.biClrUsed       = 0;
+    info.biClrImportant  = 0;
+    HDC dc      = GetDC(NULL);
+    HBITMAP dst = CreateDIBSection(dc, (BITMAPINFO*)&info,
+                            DIB_RGB_COLORS, &raw, NULL, 0);
+
+    // find the start of the pixel data
+    const char* srcBits = (const char*)bitmap + bitmap->bmiHeader.biSize;
+    if (bitmap->bmiHeader.biBitCount >= 16) {
+        if (bitmap->bmiHeader.biCompression == BI_BITFIELDS &&
+            (bitmap->bmiHeader.biBitCount == 16 ||
+            bitmap->bmiHeader.biBitCount == 32)) {
+            srcBits += 3 * sizeof(DWORD);
+        }
+    }
+    else if (bitmap->bmiHeader.biClrUsed != 0) {
+        srcBits += bitmap->bmiHeader.biClrUsed * sizeof(RGBQUAD);
+    }
+    else {
+        //http://msdn.microsoft.com/en-us/library/ke55d167(VS.80).aspx
+        srcBits += (1i64 << bitmap->bmiHeader.biBitCount) * sizeof(RGBQUAD);
+    }
+
+    // copy source image to destination image
+    HDC dstDC         = CreateCompatibleDC(dc);
+    HGDIOBJ oldBitmap = SelectObject(dstDC, dst);
+    SetDIBitsToDevice(dstDC, 0, 0, w, h, 0, 0, 0, h,
+                            srcBits, bitmap, DIB_RGB_COLORS);
+    SelectObject(dstDC, oldBitmap);
+    DeleteDC(dstDC);
+    GdiFlush();
+
+    // extract data
+    String image((const char*)&info, info.biSize);
+    image.append((const char*)raw, 4 * w * h);
+
+    // clean up GDI
+    DeleteObject(dst);
+    ReleaseDC(NULL, dc);
+
+    // release handle
+    GlobalUnlock(data);
+
+    return image;
+}