Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@589 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/Cursor.cxx b/common/rfb/Cursor.cxx
new file mode 100644
index 0000000..c8dc341
--- /dev/null
+++ b/common/rfb/Cursor.cxx
@@ -0,0 +1,179 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+#include <string.h>
+#include <rfb/Cursor.h>
+#include <rfb/LogWriter.h>
+
+using namespace rfb;
+
+static LogWriter vlog("Cursor");
+
+void Cursor::setSize(int w, int h) {
+ int oldMaskLen = maskLen();
+ ManagedPixelBuffer::setSize(w, h);
+ if (maskLen() > oldMaskLen) {
+ delete [] mask.buf;
+ mask.buf = new rdr::U8[maskLen()];
+ }
+}
+
+void Cursor::drawOutline(const Pixel& c)
+{
+ Cursor outlined;
+
+ // Create a mirror of the existing cursor
+ outlined.setPF(getPF());
+ outlined.setSize(width(), height());
+ outlined.hotspot = hotspot;
+
+ // Clear the mirror's background to the outline colour
+ outlined.fillRect(getRect(), c);
+
+ // Blit the existing cursor, using its mask
+ outlined.maskRect(getRect(), data, mask.buf);
+
+ // Now just adjust the mask to add the outline. The outline pixels
+ // will already be the right colour. :)
+ int maskBytesPerRow = (width() + 7) / 8;
+ for (int y = 0; y < height(); y++) {
+ for (int byte=0; byte<maskBytesPerRow; byte++) {
+ rdr::U8 m8 = mask.buf[y*maskBytesPerRow + byte];
+
+ // Handle above & below outline
+ if (y > 0) m8 |= mask.buf[(y-1)*maskBytesPerRow + byte];
+ if (y < height()-1) m8 |= mask.buf[(y+1)*maskBytesPerRow + byte];
+
+ // Left outline
+ m8 |= mask.buf[y*maskBytesPerRow + byte] << 1;
+ if (byte < maskBytesPerRow-1)
+ m8 |= (mask.buf[y*maskBytesPerRow + byte + 1] >> 7) & 1;
+
+ // Right outline
+ m8 |= mask.buf[y*maskBytesPerRow + byte] >> 1;
+ if (byte > 0)
+ m8 |= (mask.buf[y*maskBytesPerRow + byte - 1] << 7) & 128;
+
+ outlined.mask.buf[y*maskBytesPerRow + byte] = m8;
+ }
+ }
+
+ // Replace the existing cursor & mask with the new one
+ delete [] data;
+ delete [] mask.buf;
+ data = outlined.data; outlined.data = 0;
+ mask.buf = outlined.mask.buf; outlined.mask.buf = 0;
+}
+
+rdr::U8* Cursor::getBitmap(Pixel* pix0, Pixel* pix1)
+{
+ bool gotPix0 = false;
+ bool gotPix1 = false;
+ *pix0 = *pix1 = 0;
+ rdr::U8Array source(maskLen());
+ memset(source.buf, 0, maskLen());
+
+ int maskBytesPerRow = (width() + 7) / 8;
+ for (int y = 0; y < height(); y++) {
+ for (int x = 0; x < width(); x++) {
+ int byte = y * maskBytesPerRow + x / 8;
+ int bit = 7 - x % 8;
+ if (mask.buf[byte] & (1 << bit)) {
+ Pixel pix=0;
+ switch (getPF().bpp) {
+ case 8: pix = ((rdr::U8*) data)[y * width() + x]; break;
+ case 16: pix = ((rdr::U16*)data)[y * width() + x]; break;
+ case 32: pix = ((rdr::U32*)data)[y * width() + x]; break;
+ }
+ if (!gotPix0 || pix == *pix0) {
+ gotPix0 = true;
+ *pix0 = pix;
+ } else if (!gotPix1 || pix == *pix1) {
+ gotPix1 = true;
+ *pix1 = pix;
+ source.buf[byte] |= (1 << bit);
+ } else {
+ // not a bitmap
+ return 0;
+ }
+ }
+ }
+ }
+ return source.takeBuf();
+}
+
+// crop() determines the "busy" rectangle for the cursor - the minimum bounding
+// rectangle containing actual pixels. This isn't the most efficient algorithm
+// but it's short. For sanity, we make sure that the busy rectangle always
+// includes the hotspot (the hotspot is unsigned on the wire so otherwise it
+// would cause problems if it was above or left of the actual pixels)
+
+void Cursor::crop()
+{
+ Rect busy = getRect().intersect(Rect(hotspot.x, hotspot.y,
+ hotspot.x+1, hotspot.y+1));
+ int maskBytesPerRow = (width() + 7) / 8;
+ int x, y;
+ for (y = 0; y < height(); y++) {
+ for (x = 0; x < width(); x++) {
+ int byte = y * maskBytesPerRow + x / 8;
+ int bit = 7 - x % 8;
+ if (mask.buf[byte] & (1 << bit)) {
+ if (x < busy.tl.x) busy.tl.x = x;
+ if (x+1 > busy.br.x) busy.br.x = x+1;
+ if (y < busy.tl.y) busy.tl.y = y;
+ if (y+1 > busy.br.y) busy.br.y = y+1;
+ }
+ }
+ }
+
+ if (width() == busy.width() && height() == busy.height()) return;
+
+ vlog.debug("cropping %dx%d to %dx%d", width(), height(),
+ busy.width(), busy.height());
+
+ // Copy the pixel data
+ int newDataLen = busy.area() * (getPF().bpp/8);
+ rdr::U8* newData = new rdr::U8[newDataLen];
+ getImage(newData, busy);
+
+ // Copy the mask
+ int newMaskBytesPerRow = (busy.width()+7)/8;
+ int newMaskLen = newMaskBytesPerRow * busy.height();
+ rdr::U8* newMask = new rdr::U8[newMaskLen];
+ memset(newMask, 0, newMaskLen);
+ for (y = 0; y < busy.height(); y++) {
+ int newByte, newBit;
+ for (x = 0; x < busy.width(); x++) {
+ int oldByte = (y+busy.tl.y) * maskBytesPerRow + (x+busy.tl.x) / 8;
+ int oldBit = 7 - (x+busy.tl.x) % 8;
+ newByte = y * newMaskBytesPerRow + x / 8;
+ newBit = 7 - x % 8;
+ if (mask.buf[oldByte] & (1 << oldBit))
+ newMask[newByte] |= (1 << newBit);
+ }
+ }
+
+ // Set the size and data to the new, cropped cursor.
+ setSize(busy.width(), busy.height());
+ hotspot = hotspot.subtract(busy.tl);
+ delete [] data;
+ delete [] mask.buf;
+ datasize = newDataLen;
+ data = newData;
+ mask.buf = newMask;
+}