C++ (Cpp) send_buffers_reply Examples

Example #1

File: dri2ext.c Project: aosm/X11server

static int
ProcDRI2GetBuffers(ClientPtr client)
{
    REQUEST(xDRI2GetBuffersReq);
    DrawablePtr pDrawable;
    DRI2BufferPtr *buffers;
    int status, width, height, count;
    unsigned int *attachments;

    REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
    if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
		       &pDrawable, &status))
	return status;

    if (DRI2ThrottleClient(client, pDrawable))
	return Success;

    attachments = (unsigned int *) &stuff[1];
    buffers = DRI2GetBuffers(pDrawable, &width, &height,
			     attachments, stuff->count, &count);


    return send_buffers_reply(client, pDrawable, buffers, count, width, height);

}

Example #2

File: dri2ext.c Project: MrKepzie/xserver

static int
send_buffers_reply(ClientPtr client, DrawablePtr pDrawable,
                   DRI2BufferPtr * buffers, int count, int width, int height)
{
    xDRI2GetBuffersReply rep;
    int skip = 0;
    int i;

    if (buffers == NULL)
        return BadAlloc;

    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 = (xDRI2GetBuffersReply) {
        .type = X_Reply,
        .sequenceNumber = client->sequence,
        .length = (count - skip) * sizeof(xDRI2Buffer) / 4,
        .width = width,
        .height = height,
        .count = count - skip
    };
    WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep);

    for (i = 0; i < count; i++) {
        xDRI2Buffer buffer;

        /* 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;
        buffer.cpp = buffers[i]->cpp;
        buffer.flags = buffers[i]->flags;
        WriteToClient(client, sizeof(xDRI2Buffer), &buffer);
    }
    return Success;
}

static int
ProcDRI2GetBuffers(ClientPtr client)
{
    REQUEST(xDRI2GetBuffersReq);
    DrawablePtr pDrawable;
    DRI2BufferPtr *buffers;
    int status, width, height, count;
    unsigned int *attachments;

    REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
    if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
                       &pDrawable, &status))
        return status;

    if (DRI2ThrottleClient(client, pDrawable))
        return Success;

    attachments = (unsigned int *) &stuff[1];
    buffers = DRI2GetBuffers(pDrawable, &width, &height,
                             attachments, stuff->count, &count);

    return send_buffers_reply(client, pDrawable, buffers, count, width, height);

}