Stretch Drawing

[Patrick Cairns]

Hi, StretchBlt/StretchDIBits operation doesn't appear to be getting done in hardware.  In fact performance is slightly improved if I scale the image prior myself and call BitBlt/SetDiBitsToDevice. If I'm correct in my understanding of the x11drv source code (bitblt.c) it appears to be scaling it in software and sending this image to the hardware using XPutImage - only looked briefly.  Scaling it myself might be quicker because wine is having to prepare buffers for the scaling it itself each time. Is anyone aware of this problem or am I misinterpreting the problem.  If this is what's happening, is there an equivalent to XPutImage that requests that the stretching operation be done in the graphics hardware which is going to be considerably faster and almost instantaneous I would guess. I noticed that painting very large dialogs can be slow - might this be caused by the same thing? Thanks Patrick