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Avoid sending an extra (useless) B_DIRECT_MODIFY notification to the

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client, when the connection is stopped. But cache the "reason" of the 
notification, and join it with the next one, when B_DIRECT_START is 
notified. Experimental, could be reverted. 


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21063 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini
2007-05-07 21:26:33 +00:00
parent ca3e59106d
commit 0d478eeb6f
1 changed files with 15 additions and 4 deletions
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src/servers/app/ServerWindow.cpp
+15 -4
View File
@@ -85,11 +85,12 @@ struct direct_window_data {
~direct_window_data();
status_t InitCheck() const;
sem_id sem;
sem_id sem_ack;
area_id area;
bool started;
int next_buffer_state;
direct_buffer_info *buffer_info;
};
@@ -100,6 +101,7 @@ direct_window_data::direct_window_data()
sem_ack(-1),
area(-1),
started(false),
next_buffer_state(0),
buffer_info(NULL)
{
area = create_area("direct area", (void **)&buffer_info,
@@ -2740,12 +2742,21 @@ ServerWindow::HandleDirectConnection(int32 bufferState, int32 driverState)
|| (!fDirectWindowData->started
&& (bufferState & B_DIRECT_MODE_MASK) != B_DIRECT_START))
return;
// If the direct connection is stopped, only continue if a start notification is received.
// But save the "reason" of the call (B_BUFFER_RESIZED, B_CLIPPING_MODIFIED, etc)
if ((fDirectWindowData->buffer_info->buffer_state & B_DIRECT_MODE_MASK) == B_DIRECT_STOP
&& (bufferState & B_DIRECT_MODE_MASK) != B_DIRECT_START) {
fDirectWindowData->next_buffer_state |= bufferState & ~B_DIRECT_MODE_MASK;
return;
}
fDirectWindowData->started = true;
if (bufferState != -1)
fDirectWindowData->buffer_info->buffer_state = (direct_buffer_state)bufferState;
fDirectWindowData->buffer_info->buffer_state =
(direct_buffer_state)(bufferState | fDirectWindowData->next_buffer_state);
fDirectWindowData->next_buffer_state = 0;
if (driverState != -1)
fDirectWindowData->buffer_info->driver_state = (direct_driver_state)driverState;