We can get 0x0 cursor sometimes when the server wants to hide it.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4481 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/vncviewer/Viewport.cxx b/vncviewer/Viewport.cxx
index f673dd8..d3c21ed 100644
--- a/vncviewer/Viewport.cxx
+++ b/vncviewer/Viewport.cxx
@@ -214,33 +214,40 @@
cursor = new Fl_RGB_Image(&pxm);
cursorHotspot.x = cursorHotspot.y = 2;
} else {
- U8 *buffer = new U8[width*height*4];
- U8 *i, *o, *m;
- int m_width;
+ if ((width == 0) || (height == 0)) {
+ U8 *buffer = new U8[4];
+ memset(buffer, 0, 4);
+ cursor = new Fl_RGB_Image(buffer, 1, 1, 4);
+ cursorHotspot.x = cursorHotspot.y = 0;
+ } else {
+ U8 *buffer = new U8[width*height*4];
+ U8 *i, *o, *m;
+ int m_width;
- const PixelFormat &pf = frameBuffer->getPF();
+ const PixelFormat &pf = frameBuffer->getPF();
- i = (U8*)data;
- o = buffer;
- m = (U8*)mask;
- m_width = (width+7)/8;
- for (int y = 0;y < height;y++) {
- for (int x = 0;x < width;x++) {
- pf.rgbFromBuffer(o, i, 1, &colourMap);
+ i = (U8*)data;
+ o = buffer;
+ m = (U8*)mask;
+ m_width = (width+7)/8;
+ for (int y = 0;y < height;y++) {
+ for (int x = 0;x < width;x++) {
+ pf.rgbFromBuffer(o, i, 1, &colourMap);
- if (m[(m_width*y)+(x/8)] & 0x80>>(x%8))
- o[3] = 255;
- else
- o[3] = 0;
+ if (m[(m_width*y)+(x/8)] & 0x80>>(x%8))
+ o[3] = 255;
+ else
+ o[3] = 0;
- o += 4;
- i += pf.bpp/8;
+ o += 4;
+ i += pf.bpp/8;
+ }
}
+
+ cursor = new Fl_RGB_Image(buffer, width, height, 4);
+
+ cursorHotspot = hotspot;
}
-
- cursor = new Fl_RGB_Image(buffer, width, height, 4);
-
- cursorHotspot = hotspot;
}
if (Fl::belowmouse() == this)