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[MOVED FROM GOOD] sys/directdraw/gstdirectdrawsink.c: Make sure we create our internal window only when we need it. That will give a ch...

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Original commit message from CVS:
2008-01-05  Julien Moutte  <julien@fluendo.com>

* sys/directdraw/gstdirectdrawsink.c:
(gst_directdraw_sink_set_window_id),
(gst_directdraw_sink_set_caps),
(gst_directdraw_sink_change_state),
(gst_directdraw_sink_buffer_alloc),
(gst_directdraw_sink_draw_borders),
(gst_directdraw_sink_show_frame),
(gst_directdraw_sink_setup_ddraw),
(gst_directdraw_sink_window_thread),
(gst_directdraw_sink_get_ddrawcaps),
(gst_directdraw_sink_surface_create): Make sure we create our
internal window only when we need it. That will give a chance to
the application to get the prepare-xwindow-id bus message. Draw
black borders when keeping aspect ratio. Handle the case where
our
rendering window disappears (closed or errors) like other sinks
do. Various 80 columns fixes, improve state change order. That
element could need some more love.
This commit is contained in:
Julien Moutte 2008-01-05 21:20:08 +00:00 committed by Jan Schmidt
parent ca3a85c833
commit 1e8cd75ae9
1 changed files with 144 additions and 39 deletions
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183
sys/directdraw/gstdirectdrawsink.c
View file

@ -146,13 +146,24 @@ gst_directdraw_sink_set_window_id (GstXOverlay * overlay, ULONG window_id)
{ {
GstDirectDrawSink *ddrawsink = GST_DIRECTDRAW_SINK (overlay); GstDirectDrawSink *ddrawsink = GST_DIRECTDRAW_SINK (overlay);
GST_OBJECT_LOCK (ddrawsink);
/* check if we are already using this window id */ /* check if we are already using this window id */
if (ddrawsink->video_window == (HWND) window_id) if (ddrawsink->video_window == (HWND) window_id) {
GST_OBJECT_UNLOCK (ddrawsink);
return; return;
}
if (window_id) { if (window_id) {
HRESULT hres; HRESULT hres;
/* If we had an internal window, close it first */
if (ddrawsink->video_window && ddrawsink->our_video_window) {
/* Trick to let the event thread know that it has to die silently */
ddrawsink->our_video_window = FALSE;
/* Post quit message and wait for our event window thread */
PostMessage (ddrawsink->video_window, WM_QUIT, 0, 0);
}
ddrawsink->video_window = (HWND) window_id; ddrawsink->video_window = (HWND) window_id;
ddrawsink->our_video_window = FALSE; ddrawsink->our_video_window = FALSE;
if (ddrawsink->setup) { if (ddrawsink->setup) {
@ -161,6 +172,9 @@ gst_directdraw_sink_set_window_id (GstXOverlay * overlay, ULONG window_id)
ddrawsink->video_window); ddrawsink->video_window);
} }
} }
/* FIXME: Handle the case where window_id is 0 and we want the sink to
* create a new window when playback was already started (after set_caps) */
GST_OBJECT_UNLOCK (ddrawsink);
} }
static void static void
@ -476,6 +490,11 @@ gst_directdraw_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (ddrawsink)); gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (ddrawsink));
} }
/* If we still don't have a window at that stage we create our own */
if (!ddrawsink->video_window) {
gst_directdraw_sink_create_default_window (ddrawsink);
}
/* if we are rendering to our own window, resize it to video size */ /* if we are rendering to our own window, resize it to video size */
if (ddrawsink->video_window && ddrawsink->our_video_window) { if (ddrawsink->video_window && ddrawsink->our_video_window) {
SetWindowPos (ddrawsink->video_window, NULL, SetWindowPos (ddrawsink->video_window, NULL,
@ -499,26 +518,28 @@ static GstStateChangeReturn
gst_directdraw_sink_change_state (GstElement * element, gst_directdraw_sink_change_state (GstElement * element,
GstStateChange transition) GstStateChange transition)
{ {
GstDirectDrawSink *ddrawsink = GST_DIRECTDRAW_SINK (element);; GstDirectDrawSink *ddrawsink = GST_DIRECTDRAW_SINK (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
switch (transition) { switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY: case GST_STATE_CHANGE_NULL_TO_READY:
if (ddrawsink->video_window == NULL) if (!gst_directdraw_sink_setup_ddraw (ddrawsink)) {
if (!gst_directdraw_sink_create_default_window (ddrawsink)) ret = GST_STATE_CHANGE_FAILURE;
return GST_STATE_CHANGE_FAILURE; goto beach;
}
if (!gst_directdraw_sink_setup_ddraw (ddrawsink)) if (!(ddrawsink->caps = gst_directdraw_sink_get_ddrawcaps (ddrawsink))) {
return GST_STATE_CHANGE_FAILURE; ret = GST_STATE_CHANGE_FAILURE;
goto beach;
}
break;
default:
break;
}
if (!(ddrawsink->caps = gst_directdraw_sink_get_ddrawcaps (ddrawsink))) ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return GST_STATE_CHANGE_FAILURE;
break; switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY: case GST_STATE_CHANGE_PAUSED_TO_READY:
ddrawsink->fps_n = 0; ddrawsink->fps_n = 0;
ddrawsink->fps_d = 1; ddrawsink->fps_d = 1;
@ -531,9 +552,12 @@ gst_directdraw_sink_change_state (GstElement * element,
if (ddrawsink->setup) if (ddrawsink->setup)
gst_directdraw_sink_cleanup (ddrawsink); gst_directdraw_sink_cleanup (ddrawsink);
break; break;
default:
break;
} }
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); beach:
return ret;
} }
static GstFlowReturn static GstFlowReturn
@ -547,7 +571,7 @@ gst_directdraw_sink_buffer_alloc (GstBaseSink * bsink, guint64 offset,
gboolean buffercaps_unref = FALSE; gboolean buffercaps_unref = FALSE;
GST_CAT_INFO_OBJECT (directdrawsink_debug, ddrawsink, GST_CAT_INFO_OBJECT (directdrawsink_debug, ddrawsink,
"a buffer of %d bytes was requested", size); "a buffer of %u bytes was requested", size);
g_mutex_lock (ddrawsink->pool_lock); g_mutex_lock (ddrawsink->pool_lock);
@ -687,6 +711,63 @@ gst_directdraw_sink_buffer_alloc (GstBaseSink * bsink, guint64 offset,
return ret; return ret;
} }
static void
gst_directdraw_sink_draw_borders (GstDirectDrawSink * ddrawsink, RECT dst_rect)
{
RECT win_rect, fill_rect;
POINT win_point;
HDC hdc;
g_return_if_fail (GST_IS_DIRECTDRAW_SINK (ddrawsink));
/* Get the target window rect */
win_point.x = 0;
win_point.y = 0;
ClientToScreen (ddrawsink->video_window, &win_point);
GetClientRect (ddrawsink->video_window, &win_rect);
OffsetRect (&win_rect, win_point.x, win_point.y);
/* We acquire a drawing context */
if (IDirectDrawSurface7_GetDC (ddrawsink->primary_surface, &hdc) == DD_OK) {
HBRUSH brush = CreateSolidBrush (RGB (0, 0, 0));
/* Left border */
if (dst_rect.left > win_rect.left) {
fill_rect.left = win_rect.left;
fill_rect.top = win_rect.top;
fill_rect.bottom = win_rect.bottom;
fill_rect.right = dst_rect.left;
FillRect (hdc, &fill_rect, brush);
}
/* Right border */
if (dst_rect.right < win_rect.right) {
fill_rect.top = win_rect.top;
fill_rect.left = dst_rect.right;
fill_rect.bottom = win_rect.bottom;
fill_rect.right = win_rect.right;
FillRect (hdc, &fill_rect, brush);
}
/* Top border */
if (dst_rect.top > win_rect.top) {
fill_rect.top = win_rect.top;
fill_rect.left = win_rect.left;
fill_rect.right = win_rect.right;
fill_rect.bottom = dst_rect.top;
FillRect (hdc, &fill_rect, brush);
}
/* Bottom border */
if (dst_rect.bottom < win_rect.bottom) {
fill_rect.top = dst_rect.bottom;
fill_rect.left = win_rect.left;
fill_rect.right = win_rect.right;
fill_rect.bottom = win_rect.bottom;
FillRect (hdc, &fill_rect, brush);
}
DeleteObject (brush);
IDirectDrawSurface7_ReleaseDC (ddrawsink->primary_surface, hdc);
}
}
static GstFlowReturn static GstFlowReturn
gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf) gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
{ {
@ -711,6 +792,15 @@ gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
return GST_FLOW_ERROR; return GST_FLOW_ERROR;
/* get the video window position */ /* get the video window position */
GST_OBJECT_LOCK (ddrawsink);
if (G_UNLIKELY (!ddrawsink->video_window)) {
GST_OBJECT_UNLOCK (ddrawsink);
GST_CAT_WARNING_OBJECT (directdrawsink_debug, ddrawsink,
"gst_directdraw_sink_show_frame our video window disappeared");
GST_ELEMENT_ERROR (ddrawsink, RESOURCE, NOT_FOUND,
("Output window was closed"), (NULL));
return GST_FLOW_ERROR;
}
dest_surf_point.x = 0; dest_surf_point.x = 0;
dest_surf_point.y = 0; dest_surf_point.y = 0;
ClientToScreen (ddrawsink->video_window, &dest_surf_point); ClientToScreen (ddrawsink->video_window, &dest_surf_point);
@ -725,7 +815,9 @@ gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
src_rect.right = ddrawsink->video_width; src_rect.right = ddrawsink->video_width;
gst_directdraw_sink_center_rect (ddrawsink, src_rect, destsurf_rect, gst_directdraw_sink_center_rect (ddrawsink, src_rect, destsurf_rect,
&destsurf_rect); &destsurf_rect);
gst_directdraw_sink_draw_borders (ddrawsink, destsurf_rect);
} }
GST_OBJECT_UNLOCK (ddrawsink);
if (ddrawsink->must_recreate_offscreen && ddrawsink->offscreen_surface) { if (ddrawsink->must_recreate_offscreen && ddrawsink->offscreen_surface) {
IDirectDrawSurface7_Release (ddrawsink->offscreen_surface); IDirectDrawSurface7_Release (ddrawsink->offscreen_surface);
@ -780,17 +872,18 @@ gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
return GST_FLOW_ERROR; return GST_FLOW_ERROR;
} }
/* blit to primary surface ( Blt will scale the video the dest rect surface if needed */ /* blit to primary surface ( Blt will scale the video the dest rect surface
* if needed */
hRes = IDirectDrawSurface7_Blt (ddrawsink->primary_surface, &destsurf_rect, hRes = IDirectDrawSurface7_Blt (ddrawsink->primary_surface, &destsurf_rect,
ddrawsink->offscreen_surface, NULL, DDBLT_WAIT, NULL); ddrawsink->offscreen_surface, NULL, DDBLT_WAIT, NULL);
if (hRes != DD_OK) if (hRes != DD_OK) /* FIXME: Is it really safe to continue past here ? */
GST_CAT_WARNING_OBJECT (directdrawsink_debug, ddrawsink, GST_CAT_WARNING_OBJECT (directdrawsink_debug, ddrawsink,
"IDirectDrawSurface7_Blt (object's offscreen surface) " "returned %s", "IDirectDrawSurface7_Blt (object's offscreen surface) " "returned %s",
DDErrorString (hRes)); DDErrorString (hRes));
} else { } else {
/* We are receiving a directdraw surface (previously returned by our buffer pool /* We are receiving a directdraw surface (previously returned by our buffer
So we will simply blit it on the primary surface */ * pool so we will simply blit it on the primary surface */
GstDDrawSurface *surface = NULL; GstDDrawSurface *surface = NULL;
surface = GST_DDRAWSURFACE (buf); surface = GST_DDRAWSURFACE (buf);
@ -802,7 +895,7 @@ gst_directdraw_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
/* blit to our primary surface */ /* blit to our primary surface */
hRes = IDirectDrawSurface7_Blt (ddrawsink->primary_surface, &destsurf_rect, hRes = IDirectDrawSurface7_Blt (ddrawsink->primary_surface, &destsurf_rect,
surface->surface, NULL, DDBLT_WAIT, NULL); surface->surface, NULL, DDBLT_WAIT, NULL);
if (hRes != DD_OK) if (hRes != DD_OK) /* FIXME: Is it really safe to continue past here ? */
GST_CAT_WARNING_OBJECT (directdrawsink_debug, ddrawsink, GST_CAT_WARNING_OBJECT (directdrawsink_debug, ddrawsink,
"IDirectDrawSurface7_Blt (offscreen surface from buffer_alloc) " "IDirectDrawSurface7_Blt (offscreen surface from buffer_alloc) "
"returned %s", DDErrorString (hRes)); "returned %s", DDErrorString (hRes));
@ -1158,8 +1251,8 @@ gst_directdraw_sink_setup_ddraw (GstDirectDrawSink * ddrawsink)
gboolean bRet = TRUE; gboolean bRet = TRUE;
HRESULT hRes; HRESULT hRes;
/* create an instance of the ddraw object use DDCREATE_EMULATIONONLY as first parameter to /* create an instance of the ddraw object use DDCREATE_EMULATIONONLY as first
force Directdraw to use the hardware emulation layer */ * parameter to force Directdraw to use the hardware emulation layer */
hRes = DirectDrawCreateEx ( /*DDCREATE_EMULATIONONLY */ 0, hRes = DirectDrawCreateEx ( /*DDCREATE_EMULATIONONLY */ 0,
(void **) &ddrawsink->ddraw_object, &IID_IDirectDraw7, NULL); (void **) &ddrawsink->ddraw_object, &IID_IDirectDraw7, NULL);
if (hRes != DD_OK || ddrawsink->ddraw_object == NULL) { if (hRes != DD_OK || ddrawsink->ddraw_object == NULL) {
@ -1171,7 +1264,7 @@ gst_directdraw_sink_setup_ddraw (GstDirectDrawSink * ddrawsink)
/* set cooperative level */ /* set cooperative level */
hRes = IDirectDraw7_SetCooperativeLevel (ddrawsink->ddraw_object, hRes = IDirectDraw7_SetCooperativeLevel (ddrawsink->ddraw_object,
ddrawsink->video_window, DDSCL_NORMAL); NULL, DDSCL_NORMAL);
if (hRes != DD_OK) { if (hRes != DD_OK) {
GST_ELEMENT_ERROR (ddrawsink, RESOURCE, WRITE, GST_ELEMENT_ERROR (ddrawsink, RESOURCE, WRITE,
("Failed to set the set the cooperative level error=%s", ("Failed to set the set the cooperative level error=%s",
@ -1182,10 +1275,6 @@ gst_directdraw_sink_setup_ddraw (GstDirectDrawSink * ddrawsink)
/* setup the clipper object */ /* setup the clipper object */
hRes = IDirectDraw7_CreateClipper (ddrawsink->ddraw_object, 0, hRes = IDirectDraw7_CreateClipper (ddrawsink->ddraw_object, 0,
&ddrawsink->clipper, NULL); &ddrawsink->clipper, NULL);
if (hRes == DD_OK) {
hRes = IDirectDrawClipper_SetHWnd (ddrawsink->clipper, 0,
ddrawsink->video_window);
}
/* create our primary surface */ /* create our primary surface */
if (!gst_directdraw_sink_check_primary_surface (ddrawsink)) if (!gst_directdraw_sink_check_primary_surface (ddrawsink))
@ -1236,6 +1325,9 @@ gst_directdraw_sink_window_thread (GstDirectDrawSink * ddrawsink)
if (ddrawsink->video_window == NULL) if (ddrawsink->video_window == NULL)
return FALSE; return FALSE;
/* Set the clipper on that window */
IDirectDrawClipper_SetHWnd (ddrawsink->clipper, 0, ddrawsink->video_window);
/* signal application we create a window */ /* signal application we create a window */
gst_x_overlay_got_xwindow_id (GST_X_OVERLAY (ddrawsink), gst_x_overlay_got_xwindow_id (GST_X_OVERLAY (ddrawsink),
(gulong) ddrawsink->video_window); (gulong) ddrawsink->video_window);
@ -1246,8 +1338,18 @@ gst_directdraw_sink_window_thread (GstDirectDrawSink * ddrawsink)
while (1) { while (1) {
MSG msg; MSG msg;
if (!GetMessage (&msg, ddrawsink->video_window, 0, 0)) if (GetMessage (&msg, ddrawsink->video_window, 0, 0) <= 0) {
GST_CAT_LOG_OBJECT (directdrawsink_debug, ddrawsink,
"our window received WM_QUIT or error.");
/* The window could have changed, if it is not ours anymore we don't
* overwrite the current video window with NULL */
if (ddrawsink->our_video_window) {
GST_OBJECT_LOCK (ddrawsink);
ddrawsink->video_window = NULL;
GST_OBJECT_UNLOCK (ddrawsink);
}
break; break;
}
DispatchMessage (&msg); DispatchMessage (&msg);
} }
@ -1511,7 +1613,8 @@ gst_directdraw_sink_get_ddrawcaps (GstDirectDrawSink * ddrawsink)
IDirectDraw7_GetCaps (ddrawsink->ddraw_object, &ddcaps_hardware, IDirectDraw7_GetCaps (ddrawsink->ddraw_object, &ddcaps_hardware,
&ddcaps_emulation); &ddcaps_emulation);
/* we don't test for DDCAPS_BLTSTRETCH on the hardware as the directdraw emulation layer can do it */ /* we don't test for DDCAPS_BLTSTRETCH on the hardware as the directdraw
* emulation layer can do it */
if (!(ddcaps_hardware.dwCaps & DDCAPS_BLTFOURCC)) { if (!(ddcaps_hardware.dwCaps & DDCAPS_BLTFOURCC)) {
DDSURFACEDESC2 surface_desc; DDSURFACEDESC2 surface_desc;
DDSURFACEDESC2 *sd; DDSURFACEDESC2 *sd;
@ -1574,7 +1677,8 @@ gst_directdraw_sink_get_ddrawcaps (GstDirectDrawSink * ddrawsink)
return NULL; return NULL;
} }
/*GST_CAT_INFO_OBJECT (directdrawsink_debug, ddrawsink, "returning caps %s", gst_caps_to_string (ddrawsink->caps)); */ /*GST_CAT_INFO_OBJECT (directdrawsink_debug, ddrawsink, "returning caps %s",
* gst_caps_to_string (ddrawsink->caps)); */
return ddrawsink->caps; return ddrawsink->caps;
} }
@ -1619,12 +1723,13 @@ gst_directdraw_sink_surface_create (GstDirectDrawSink * ddrawsink,
"failed getting pixel format from caps %" GST_PTR_FORMAT, caps); "failed getting pixel format from caps %" GST_PTR_FORMAT, caps);
} }
/* disable return of directdraw surface to buffer alloc because actually I have no solution /* disable return of directdraw surface to buffer alloc because actually I
* to handle display mode changes. The problem is that when the display mode is changed * have no solution to handle display mode changes. The problem is that when
* surface's memory is freed then the upstream filter would crash trying to write to this memory. * the display mode is changed surface's memory is freed then the upstream
* Directdraw has a system lock (DDLOCK_NOSYSLOCK to disable it) to prevent display mode changes * filter would crash trying to write to this memory. Directdraw has a system
* when a surface memory is locked but we need to disable this lock to return multiple buffers (surfaces) * lock (DDLOCK_NOSYSLOCK to disable it) to prevent display mode changes
* and do not lock directdraw API calls. * when a surface memory is locked but we need to disable this lock to return
* multiple buffers (surfaces) and do not lock directdraw API calls.
*/ */
#if 0 #if 0
/* if (ddrawsink->ddraw_object) {*/ /* if (ddrawsink->ddraw_object) {*/