Macintosh-Tools/macemu
1
0
Fork 0
mirror of https://github.com/kanjitalk755/macemu.git synced 2024-12-25 02:29:49 +00:00
Code Issues Projects Releases Wiki Activity

fix shm screen image allocation.

Browse Source
This commit is contained in:
gbeauche 2003-11-20 16:24:57 +00:00
parent b7c917e6d1
commit 5b950fa2ef
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
SheepShaver/src/Unix/video_x.cpp
View File

@ -197,12 +197,16 @@ static bool open_window(int width, int height)
XFree((char *)hints);
}
// 1-bit mode is big-endian; if the X server is little-endian, we can't
// use SHM because that doesn't allow changing the image byte order
bool need_msb_image = (depth == 1 && XImageByteOrder(x_display) == LSBFirst);
// Try to create and attach SHM image
have_shm = false;
if (local_X11 && depth != 1 && XShmQueryExtension(x_display)) {
if (local_X11 && !need_msb_image && XShmQueryExtension(x_display)) {
// Create SHM image ("height + 2" for safety)
img = XShmCreateImage(x_display, vis, depth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
img = XShmCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
shminfo.shmid = shmget(IPC_PRIVATE, (height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
shminfo.shmaddr = img->data = (char *)the_buffer_copy;