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eglglessink: Draft set_render_rectangle() from the xOverlay interface

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This commit is contained in:
Reynaldo H. Verdejo Pinochet 2012-09-21 00:09:06 -03:00 committed by Sebastian Dröge
parent f8b69a7c7f
commit 90d5b76dc5
2 changed files with 52 additions and 3 deletions
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54
ext/eglgles/gsteglglessink.c
View file

@ -183,8 +183,7 @@ static const char *frag_AYUV_prog = {
/* Input capabilities.
*
* OpenGL ES Standard does not mandate YUV support
* so we are going to stick to RGB for the time being
* Note: OpenGL ES Standard does not mandate YUV support.
*/
static GstStaticPadTemplate gst_eglglessink_sink_template_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
@ -266,6 +265,8 @@ static void gst_eglglessink_init_interfaces (GType type);
static void gst_eglglessink_expose (GstXOverlay * overlay);
static void gst_eglglessink_set_window_handle (GstXOverlay * overlay,
guintptr id);
static void gst_eglglessink_set_render_rectangle (GstXOverlay *overlay, gint x,
gint y, gint width, gint height);
/* Custom Buffer funcs */
static void gst_eglglesbuffer_destroy (GstEglGlesBuffer * eglglessink);
@ -949,6 +950,7 @@ gst_eglglessink_xoverlay_init (GstXOverlayClass * iface)
{
iface->set_window_handle = gst_eglglessink_set_window_handle;
iface->expose = gst_eglglessink_expose;
iface->set_render_rectangle = gst_eglglessink_set_render_rectangle;
}
static gboolean
@ -1482,6 +1484,36 @@ HANDLE_ERROR:
return;
}
/* Drafted */
static void
gst_eglglessink_set_render_rectangle (GstXOverlay *overlay, gint x, gint y,
gint width, gint height)
{
GstEglGlesSink *eglglessink = GST_EGLGLESSINK (overlay);
g_return_if_fail (GST_IS_EGLGLESSINK (eglglessink));
g_mutex_lock (eglglessink->flow_lock);
if (width == -1 && height == -1) {
/* This is the set_defaults condition according to
* the xOverlay interface docs
*/
eglglessink->display_region.w = 0;
eglglessink->display_region.h = 0;
} else {
g_mutex_lock (eglglessink->flow_lock);
eglglessink->display_region.x = x;
eglglessink->display_region.y = y;
eglglessink->display_region.w = width;
eglglessink->display_region.h = height;
}
g_mutex_unlock (eglglessink->flow_lock);
return;
}
/* Rendering and display */
static GstFlowReturn
gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
@ -1560,7 +1592,23 @@ gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
if (got_gl_error ("glTexImage2D"))
goto HANDLE_ERROR;
glViewport (0, 0, w, h);
/* If no one has set a display rectangle on us initialize
* a sane default. According to the docs on the xOverlay
* interface we are supposed to fill the overlay 100%
*
* XXX: If this is not desired just use calculated pos with
* lower left corner as 0,0 and w,h from the decoded frame.
*/
if (!eglglessink->display_region.w || !eglglessink->display_region.h)
{
eglglessink->display_region.x = 0;
eglglessink->display_region.y = 0;
eglglessink->display_region.w = eglglessink->surface_width;
eglglessink->display_region.h = eglglessink->surface_height;
}
glViewport (eglglessink->display_region.x, eglglessink->display_region.y,
eglglessink->display_region.w, eglglessink->display_region.h);
glDrawElements (GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_SHORT, 0);
if (got_gl_error ("glDrawElements"))

1
ext/eglgles/gsteglglessink.h
View file

@ -126,6 +126,7 @@ struct _GstEglGlesSink
* the platform supported fmts. Right now we just add one
* format/caps at init.
*/
GstVideoRectangle display_region;
GList *supported_fmts;
GstEglGlesImageFmt *selected_fmt;