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gl/utils: also take care of the local GL context in query functions

Browse source 
Simplifies a deduplicates a lot of code in elements retrieving/setting
the local OpenGL context.
This commit is contained in:
Matthew Waters 2017-01-12 21:35:25 +11:00 committed by Tim-Philipp Müller
parent d00a13f01d
commit ceda9dc1aa
9 changed files with 197 additions and 408 deletions
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109
ext/gl/gstglbasemixer.c
View file

@ -145,39 +145,12 @@ gst_gl_base_mixer_sink_event (GstAggregator * agg, GstAggregatorPad * bpad,
static gboolean
_find_local_gl_context (GstGLBaseMixer * mix)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
if (mix->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (mix), GST_PAD_SRC,
&mix->context))
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (!mix->context && gst_gl_run_query (GST_ELEMENT (mix), query, GST_PAD_SRC)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &mix->context,
NULL);
}
}
if (!mix->context
&& gst_gl_run_query (GST_ELEMENT (mix), query, GST_PAD_SINK)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &mix->context,
NULL);
}
}
GST_DEBUG_OBJECT (mix, "found local context %p", mix->context);
gst_query_unref (query);
if (mix->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (mix), GST_PAD_SINK,
&mix->context))
return TRUE;
return FALSE;
}
@ -296,39 +269,9 @@ gst_gl_base_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
}
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
ret = gst_gl_handle_context_query ((GstElement *) mix, query,
&mix->display, &mix->priv->other_context);
if (mix->display)
gst_gl_display_filter_gl_api (mix->display,
mix_class->supported_gl_api);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, mix->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
ret = mix->context != NULL;
}
GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, ret);
if (ret)
return ret;
if (gst_gl_handle_context_query ((GstElement *) mix, query,
mix->display, mix->context, mix->priv->other_context))
return TRUE;
break;
}
default:
@ -508,46 +451,14 @@ gst_gl_base_mixer_src_activate_mode (GstAggregator * aggregator,
static gboolean
gst_gl_base_mixer_src_query (GstAggregator * agg, GstQuery * query)
{
gboolean res = FALSE;
GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
res = gst_gl_handle_context_query ((GstElement *) mix, query,
&mix->display, &mix->priv->other_context);
if (mix->display)
gst_gl_display_filter_gl_api (mix->display,
mix_class->supported_gl_api);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, mix->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = mix->context != NULL;
}
GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, res);
if (res)
return res;
if (gst_gl_handle_context_query ((GstElement *) mix, query,
mix->display, mix->context, mix->priv->other_context))
return TRUE;
break;
}
default:

37
ext/gl/gstglimagesink.c
View file

@ -1080,39 +1080,10 @@ gst_glimage_sink_query (GstBaseSink * bsink, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
res = gst_gl_handle_context_query ((GstElement *) glimage_sink, query,
&glimage_sink->display, &glimage_sink->other_context);
if (glimage_sink->display)
gst_gl_display_filter_gl_api (glimage_sink->display, SUPPORTED_GL_APIS);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT,
glimage_sink->context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = glimage_sink->context != NULL;
}
GST_LOG_OBJECT (glimage_sink, "context query of type %s %i", context_type,
res);
if (res)
return res;
if (gst_gl_handle_context_query ((GstElement *) glimage_sink, query,
glimage_sink->display, glimage_sink->context,
glimage_sink->other_context))
return TRUE;
break;
}
case GST_QUERY_DRAIN:

110
ext/gl/gstglstereosplit.c
View file

@ -247,8 +247,8 @@ strip_mview_fields (GstCaps * incaps, GstVideoMultiviewFlags keep_flags)
GstVideoMultiviewFlags flags, mask;
gst_structure_remove_field (st, "multiview-mode");
if (gst_structure_get_flagset (st, "multiview-flags", (guint*) &flags,
(guint*) &mask)) {
if (gst_structure_get_flagset (st, "multiview-flags", (guint *) & flags,
(guint *) & mask)) {
flags &= keep_flags;
mask = keep_flags;
gst_structure_set (st, "multiview-flags",
@ -414,40 +414,12 @@ fail:
static gboolean
_find_local_gl_context (GstGLStereoSplit * split)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
if (split->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (split), GST_PAD_SRC,
&split->context))
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (!split->context
&& gst_gl_run_query (GST_ELEMENT (split), query, GST_PAD_SRC)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &split->context,
NULL);
}
}
if (!split->context
&& gst_gl_run_query (GST_ELEMENT (split), query, GST_PAD_SINK)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &split->context,
NULL);
}
}
GST_DEBUG_OBJECT (split, "found local context %p", split->context);
gst_query_unref (query);
if (split->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (split), GST_PAD_SINK,
&split->context))
return TRUE;
return FALSE;
}
@ -626,38 +598,9 @@ stereosplit_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
gboolean ret;
ret = gst_gl_handle_context_query ((GstElement *) split, query,
&split->display, &split->other_context);
if (split->display)
gst_gl_display_filter_gl_api (split->display, SUPPORTED_GL_APIS);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, split->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
ret = split->context != NULL;
}
GST_LOG_OBJECT (split, "context query of type %s %i", context_type, ret);
if (ret)
return ret;
if (gst_gl_handle_context_query ((GstElement *) split, query,
split->display, split->context, split->other_context))
return TRUE;
return gst_pad_query_default (pad, parent, query);
}
@ -684,38 +627,9 @@ stereosplit_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
gboolean ret;
ret = gst_gl_handle_context_query ((GstElement *) split, query,
&split->display, &split->other_context);
if (split->display)
gst_gl_display_filter_gl_api (split->display, SUPPORTED_GL_APIS);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, split->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
ret = split->context != NULL;
}
GST_LOG_OBJECT (split, "context query of type %s %i", context_type, ret);
if (ret)
return ret;
if (gst_gl_handle_context_query ((GstElement *) split, query,
split->display, split->context, split->other_context))
return TRUE;
return gst_pad_query_default (pad, parent, query);
}

70
ext/gl/gstgltestsrc.c
View file

@ -326,39 +326,9 @@ gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
res = gst_gl_handle_context_query ((GstElement *) src, query,
&src->display, &src->other_context);
if (src->display)
gst_gl_display_filter_gl_api (src->display, SUPPORTED_GL_APIS);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, src->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = src->context != NULL;
}
GST_LOG_OBJECT (src, "context query of type %s %i", context_type, res);
if (res)
return res;
if (gst_gl_handle_context_query ((GstElement *) src, query,
src->display, src->context, src->other_context))
return TRUE;
break;
}
case GST_QUERY_CONVERT:
@ -584,39 +554,9 @@ gst_gl_test_src_stop (GstBaseSrc * basesrc)
static gboolean
_find_local_gl_context (GstGLTestSrc * src)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
if (src->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (src), GST_PAD_SRC,
&src->context))
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (!src->context && gst_gl_run_query (GST_ELEMENT (src), query, GST_PAD_SRC)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &src->context,
NULL);
}
}
if (!src->context
&& gst_gl_run_query (GST_ELEMENT (src), query, GST_PAD_SINK)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &src->context,
NULL);
}
}
GST_DEBUG_OBJECT (src, "found local context %p", src->context);
gst_query_unref (query);
if (src->context)
return TRUE;
return FALSE;
}

1
ext/gl/gstglutils.h
View file

@ -25,7 +25,6 @@
G_BEGIN_DECLS
GST_EXPORT
gboolean gst_gl_context_gen_shader (GstGLContext * context,
const gchar * shader_vertex_source,
const gchar * shader_fragment_source, GstGLShader ** shader);

78
gst-libs/gst/gl/gstglbasefilter.c
View file

@ -25,6 +25,7 @@
#include <gst/video/gstvideometa.h>
#include <gst/gl/gl.h>
#include <gst/gl/gstglutils_private.h>
/**
* SECTION:gstglbasefilter
@ -62,8 +63,7 @@ enum
#define gst_gl_base_filter_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLBaseFilter, gst_gl_base_filter,
GST_TYPE_BASE_TRANSFORM, GST_DEBUG_CATEGORY_INIT (gst_gl_base_filter_debug,
"glbasefilter", 0, "glbasefilter element");
);
"glbasefilter", 0, "glbasefilter element"););
static void gst_gl_base_filter_finalize (GObject * object);
static void gst_gl_base_filter_set_property (GObject * object, guint prop_id,
@ -192,40 +192,12 @@ gst_gl_base_filter_set_context (GstElement * element, GstContext * context)
static gboolean
_find_local_gl_context (GstGLBaseFilter * filter)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
if (filter->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (filter), GST_PAD_SRC,
&filter->context))
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (!filter->context
&& gst_gl_run_query (GST_ELEMENT (filter), query, GST_PAD_SRC)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &filter->context,
NULL);
}
}
if (!filter->context
&& gst_gl_run_query (GST_ELEMENT (filter), query, GST_PAD_SINK)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, &filter->context,
NULL);
}
}
GST_DEBUG_OBJECT (filter, "found local context %p", filter->context);
gst_query_unref (query);
if (filter->context)
if (gst_gl_query_local_gl_context (GST_ELEMENT (filter), GST_PAD_SINK,
&filter->context))
return TRUE;
return FALSE;
}
@ -234,7 +206,6 @@ gst_gl_base_filter_query (GstBaseTransform * trans, GstPadDirection direction,
GstQuery * query)
{
GstGLBaseFilter *filter = GST_GL_BASE_FILTER (trans);
GstGLBaseFilterClass *filter_class = GST_GL_BASE_FILTER_GET_CLASS (filter);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_ALLOCATION:
@ -249,40 +220,9 @@ gst_gl_base_filter_query (GstBaseTransform * trans, GstPadDirection direction,
}
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
gboolean ret;
ret = gst_gl_handle_context_query ((GstElement *) filter, query,
&filter->display, &filter->priv->other_context);
if (filter->display)
gst_gl_display_filter_gl_api (filter->display,
filter_class->supported_gl_api);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, filter->context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
ret = filter->context != NULL;
}
GST_LOG_OBJECT (filter, "context query of type %s %i", context_type, ret);
if (ret)
return ret;
if (gst_gl_handle_context_query ((GstElement *) filter, query,
filter->display, filter->context, filter->priv->other_context))
return TRUE;
break;
}
default:

160
gst-libs/gst/gl/gstglutils.c
View file

@ -35,6 +35,7 @@
#include "gl.h"
#include "gstglutils.h"
#include "gstglutils_private.h"
#if GST_GL_HAVE_WINDOW_X11
#include <gst/gl/x11/gstgldisplay_x11.h>
@ -49,6 +50,24 @@
#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
#ifndef GST_DISABLE_GST_DEBUG
GST_DEBUG_CATEGORY_STATIC (gst_gl_utils_debug);
static GstDebugCategory *
_init_gl_utils_debug_category (void)
{
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (gst_gl_utils_debug, "glutils", 0,
"OpenGL Utilities");
g_once_init_leave (&_init, 1);
}
return gst_gl_utils_debug;
}
#define GST_CAT_DEFAULT _init_gl_utils_debug_category()
#endif
static gboolean
gst_gl_display_found (GstElement * element, GstGLDisplay * display)
@ -349,21 +368,24 @@ gst_gl_handle_set_context (GstElement * element, GstContext * context,
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display, GstGLContext ** other_context)
GstGLDisplay * display, GstGLContext * gl_context,
GstGLContext * other_context)
{
gboolean res = FALSE;
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (query != NULL, FALSE);
g_return_val_if_fail (display != NULL, FALSE);
g_return_val_if_fail (other_context != NULL, FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
g_return_val_if_fail (display == NULL || GST_IS_GL_DISPLAY (display), FALSE);
g_return_val_if_fail (gl_context == NULL
|| GST_IS_GL_CONTEXT (gl_context), FALSE);
g_return_val_if_fail (other_context == NULL
|| GST_IS_GL_CONTEXT (other_context), FALSE);
GST_LOG_OBJECT (element, "handle context query %" GST_PTR_FORMAT, query);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
if (display && g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
gst_query_parse_context (query, &old_context);
if (old_context)
@ -371,16 +393,17 @@ gst_gl_handle_context_query (GstElement * element, GstQuery * query,
else
context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (context, *display);
gst_context_set_gl_display (context, display);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set %" GST_PTR_FORMAT
" on %" GST_PTR_FORMAT, display, query);
res = *display != NULL;
return TRUE;
}
#if GST_GL_HAVE_WINDOW_X11
else if (g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
else if (display && g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
GstStructure *s;
Display *x11_display = NULL;
gst_query_parse_context (query, &old_context);
@ -389,24 +412,29 @@ gst_gl_handle_context_query (GstElement * element, GstQuery * query,
else
context = gst_context_new ("gst.x11.display.handle", TRUE);
if (*display
&& ((*display)->type & GST_GL_DISPLAY_TYPE_X11) ==
GST_GL_DISPLAY_TYPE_X11)
x11_display = (Display *) gst_gl_display_get_handle (*display);
if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_X11) {
Display *x11_display = (Display *) gst_gl_display_get_handle (display);
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);
if (x11_display) {
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
gst_query_set_context (query, context);
gst_context_unref (context);
res = x11_display != NULL;
GST_DEBUG_OBJECT (element, "successfully set x11 display %p (from %"
GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, x11_display, display,
query);
return TRUE;
}
}
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
else if (g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
else if (display
&& g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
GstStructure *s;
struct wl_display *wayland_display = NULL;
gst_query_parse_context (query, &old_context);
@ -415,22 +443,27 @@ gst_gl_handle_context_query (GstElement * element, GstQuery * query,
else
context = gst_context_new ("GstWaylandDisplayHandleContextType", TRUE);
if (*display
&& ((*display)->type & GST_GL_DISPLAY_TYPE_WAYLAND) ==
GST_GL_DISPLAY_TYPE_WAYLAND)
wayland_display =
(struct wl_display *) gst_gl_display_get_handle (*display);
if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_WAYLAND) {
struct wl_display *wayland_display =
(struct wl_display *) gst_gl_display_get_handle (display);
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);
if (wayland_display) {
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
gst_query_set_context (query, context);
gst_context_unref (context);
res = wayland_display != NULL;
GST_DEBUG_OBJECT (element, "successfully set wayland display %p (from %"
GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, wayland_display, display,
query);
return TRUE;
}
}
}
#endif
else if (g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
else if (other_context && g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
@ -441,14 +474,65 @@ gst_gl_handle_context_query (GstElement * element, GstQuery * query,
context = gst_context_new ("gst.gl.app_context", TRUE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, *other_context, NULL);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, other_context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *other_context != NULL;
GST_DEBUG_OBJECT (element, "successfully set application GL context %"
GST_PTR_FORMAT " on %" GST_PTR_FORMAT, other_context, query);
return TRUE;
} else if (gl_context
&& g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", TRUE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, gl_context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set GL context %"
GST_PTR_FORMAT " on %" GST_PTR_FORMAT, gl_context, query);
return TRUE;
}
return res;
return FALSE;
}
gboolean
gst_gl_query_local_gl_context (GstElement * element, GstPadDirection direction,
GstGLContext ** context_ptr)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (context_ptr != NULL, FALSE);
if (*context_ptr)
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (gst_gl_run_query (GST_ELEMENT (element), query, direction)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_TYPE_GL_CONTEXT, context_ptr, NULL);
}
}
gst_query_unref (query);
return *context_ptr != NULL;
}
gsize
@ -471,8 +555,6 @@ gst_gl_get_plane_data_size (GstVideoInfo * info, GstVideoAlignment * align,
return plane_size;
}
/* find the difference between the start of the plane and where the video
* data starts in the plane */
gsize
gst_gl_get_plane_start (GstVideoInfo * info, GstVideoAlignment * valign,
guint plane)

8
gst-libs/gst/gl/gstglutils.h
View file

@ -36,11 +36,11 @@ gboolean gst_gl_handle_set_context (GstElement * element, GstContext * context,
GstGLDisplay ** display, GstGLContext ** other_context);
GST_EXPORT
gboolean gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display, GstGLContext ** other_context);
GstGLDisplay * display, GstGLContext * context, GstGLContext * other_context);
GST_EXPORT
gboolean gst_gl_run_query (GstElement * element,
GstQuery * query, GstPadDirection direction);
gboolean gst_gl_query_local_gl_context (GstElement * element, GstPadDirection direction,
GstGLContext ** context_ptr);
GST_EXPORT
gsize gst_gl_get_plane_data_size (GstVideoInfo * info, GstVideoAlignment * align,
guint plane);

32
gst-libs/gst/gl/gstglutils_private.h Normal file
View file

@ -0,0 +1,32 @@
/*
* GStreamer
* Copyright (C) 2017 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_UTILS_PRIVATE_H__
#define __GST_GL_UTILS_PRIVATE_H__
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
gboolean gst_gl_run_query (GstElement * element, GstQuery * query, GstPadDirection direction);
G_END_DECLS
#endif /* __GST_GL_UTILS_H__ */