Added get pixel size process.

[mikoto2000]

I try add get pixel size process.(See: #44)

• Change recv length to 16 (short x 4(row, col, xpixel, ypixel))
• Delete the parts that have been overwritten with zeros

Please check it.

(rows, cols, xpixel, ypixel)

termsize.py: https://github.com/mikoto2000/sixelPreviewer/blob/master/termsize.py

[mintty]

struct winsize is 8 bytes long, it is wrong to read 16 bytes from the socket. That's why the backend blocks until you feed in 8 more bytes by hitting keys.
After fixing this, the pixel size is properly conveyed and properly reported in various distributions. However, a number of distributions do not support the pixel values anyway.

Please fix the patch and re-release as 0.14. The current release can be deleted.

diff --git a/src/wslbridge2-backend.cpp b/src/wslbridge2-backend.cpp
old mode 100755
new mode 100644
index e3b3ad2..cd81e4a
--- a/src/wslbridge2-backend.cpp
+++ b/src/wslbridge2-backend.cpp
@@ -256,9 +256,9 @@ int main(int argc, char *argv[])
                             s++;
                             len--;
                             // ensure 8 more bytes are loaded for winsize
-                            while (readRet > 0 && len < 16)
+                            while (readRet > 0 && len < 8)
                             {
-                                readRet = recv(ioSockets.inputSock, s + len, 16 - len, 0);
+                                readRet = recv(ioSockets.inputSock, s + len, 8 - len, 0);
                                 if (readRet > 0)
                                 {
                                     len += readRet;

[mikoto2000]

@mintty
Thank you for pointing that out, you were right.
The problem of having to press Enter several times has been fixed in my environment.

I will fix this patch and create a Pull Request.

[Biswa96]

I have added the fix in v0.13 release.

[mintty]

Thank you, my test packages work fine. Can we have it as a release please?

[Biswa96]

v0.13 has the fix, I have re-tagged it (not professional, I know).

[mintty]

Ah, thanks, that's OK.