diff options
author | Ian Romanick <ian.d.romanick@intel.com> | 2009-04-09 14:31:01 -0700 |
---|---|---|
committer | Ian Romanick <ian.d.romanick@intel.com> | 2009-04-10 12:00:36 -0700 |
commit | f1a995d1496d73741731e32f475097c44a8da972 (patch) | |
tree | 1625b7bb7d1483518bc0681419a532a7c86b8a79 /hw/xfree86/dri2/dri2ext.c | |
parent | aa2928325fe51d94a636dde9c090e8f54a311a12 (diff) |
DRI2: Do not send the real front buffer of a window to the client
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Diffstat (limited to 'hw/xfree86/dri2/dri2ext.c')
-rw-r--r-- | hw/xfree86/dri2/dri2ext.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c index d6e1c9689..503f82716 100644 --- a/hw/xfree86/dri2/dri2ext.c +++ b/hw/xfree86/dri2/dri2ext.c @@ -202,6 +202,7 @@ ProcDRI2GetBuffers(ClientPtr client) int i, status, width, height, count; unsigned int *attachments; xDRI2Buffer buffer; + int skip; REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4); if (!validDrawable(client, stuff->drawable, &pDrawable, &status)) @@ -211,15 +212,34 @@ ProcDRI2GetBuffers(ClientPtr client) buffers = DRI2GetBuffers(pDrawable, &width, &height, attachments, stuff->count, &count); + skip = 0; + if (pDrawable->type == DRAWABLE_WINDOW) { + for (i = 0; i < count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if (buffers[i].attachment == DRI2BufferFrontLeft) { + skip++; + continue; + } + } + } + rep.type = X_Reply; - rep.length = count * sizeof(xDRI2Buffer) / 4; + rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4; rep.sequenceNumber = client->sequence; rep.width = width; rep.height = height; - rep.count = count; + rep.count = count - skip; WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep); for (i = 0; i < count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if ((pDrawable->type == DRAWABLE_WINDOW) + && (buffers[i].attachment == DRI2BufferFrontLeft)) { + continue; + } + buffer.attachment = buffers[i].attachment; buffer.name = buffers[i].name; buffer.pitch = buffers[i].pitch; |