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glcontext: add vfunc to retrieve the OpenGL platform version

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i.e. the version of EGL, GLX, etc implemented.

https://bugzilla.gnome.org/show_bug.cgi?id=774518
This commit is contained in:
Matthew Waters 2016-11-17 01:45:38 +11:00 committed by Tim-Philipp Müller
parent 6703641734
commit 39e75767fb
4 changed files with 69 additions and 0 deletions
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14
gst-libs/gst/gl/egl/gstglcontext_egl.c
View file

@ -64,6 +64,8 @@ static GstGLPlatform gst_gl_context_egl_get_gl_platform (GstGLContext *
context);
static gboolean gst_gl_context_egl_check_feature (GstGLContext * context,
const gchar * feature);
static void gst_gl_context_egl_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor);
G_DEFINE_TYPE (GstGLContextEGL, gst_gl_context_egl, GST_TYPE_GL_CONTEXT);
@ -93,6 +95,8 @@ gst_gl_context_egl_class_init (GstGLContextEGLClass * klass)
GST_DEBUG_FUNCPTR (gst_gl_context_egl_check_feature);
context_class->get_current_context =
GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_current_context);
context_class->get_gl_platform_version =
GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_platform_version);
}
static void
@ -801,3 +805,13 @@ gst_gl_context_egl_get_current_context (void)
{
return (guintptr) eglGetCurrentContext ();
}
static void
gst_gl_context_egl_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor)
{
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
*major = context_egl->egl_major;
*minor = context_egl->egl_minor;
}

38
gst-libs/gst/gl/gstglcontext.c
View file

@ -193,6 +193,8 @@ static void _init_debug (void);
static gpointer gst_gl_context_create_thread (GstGLContext * context);
static void gst_gl_context_finalize (GObject * object);
static void gst_gl_context_default_get_gl_platform_version (GstGLContext *
context, gint * major, gint * minor);
struct _GstGLContextPrivate
{
@ -285,6 +287,8 @@ gst_gl_context_class_init (GstGLContextClass * klass)
klass->get_proc_address =
GST_DEBUG_FUNCPTR (gst_gl_context_default_get_proc_address);
klass->get_gl_platform_version =
GST_DEBUG_FUNCPTR (gst_gl_context_default_get_gl_platform_version);
G_OBJECT_CLASS (klass)->finalize = gst_gl_context_finalize;
@ -1696,6 +1700,40 @@ gst_gl_context_set_shared_with (GstGLContext * context, GstGLContext * share)
_context_share_group_ref (share->priv->sharegroup);
}
static void
gst_gl_context_default_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor)
{
if (major)
*major = 0;
if (minor)
*minor = 0;
}
/**
* gst_gl_context_get_gl_platform_version:
* @context: a #GstGLContext
* @major: (out): return for the major version
* @minor: (out): return for the minor version
*
* Get the version of the OpenGL platform (GLX, EGL, etc) used. Only valid
* after a call to gst_gl_context_create_context().
*/
void
gst_gl_context_get_gl_platform_version (GstGLContext * context, gint * major,
gint * minor)
{
GstGLContextClass *context_class;
g_return_if_fail (GST_IS_GL_CONTEXT (context));
g_return_if_fail (major != NULL);
g_return_if_fail (minor != NULL);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
g_return_if_fail (context_class->get_gl_platform_version != NULL);
context_class->get_gl_platform_version (context, major, minor);
}
static GstGLAPI
gst_gl_wrapped_context_get_gl_api (GstGLContext * context)
{

3
gst-libs/gst/gl/gstglcontext.h
View file

@ -128,6 +128,7 @@ struct _GstGLContextClass {
void (*destroy_context) (GstGLContext *context);
void (*swap_buffers) (GstGLContext *context);
gboolean (*check_feature) (GstGLContext *context, const gchar *feature);
void (*get_gl_platform_version) (GstGLContext *context, gint *major, gint *minor);
/*< private >*/
gpointer _reserved[GST_PADDING];
@ -184,6 +185,8 @@ GST_EXPORT
gboolean gst_gl_context_check_gl_version (GstGLContext * context, GstGLAPI api, gint maj, gint min);
GST_EXPORT
gboolean gst_gl_context_check_feature (GstGLContext *context, const gchar *feature);
GST_EXPORT
void gst_gl_context_get_gl_platform_version (GstGLContext * context, gint * major, gint * minor);
GST_EXPORT
guintptr gst_gl_context_get_current_gl_context (GstGLPlatform context_type);

14
gst-libs/gst/gl/x11/gstglcontext_glx.c
View file

@ -58,6 +58,8 @@ static gboolean gst_gl_context_glx_choose_format (GstGLContext *
GstGLAPI gst_gl_context_glx_get_gl_api (GstGLContext * context);
static GstGLPlatform gst_gl_context_glx_get_gl_platform (GstGLContext *
context);
static void gst_gl_context_glx_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor);
struct _GstGLContextGLXPrivate
{
@ -97,6 +99,8 @@ gst_gl_context_glx_class_init (GstGLContextGLXClass * klass)
GST_DEBUG_FUNCPTR (gst_gl_context_glx_get_proc_address);
context_class->get_current_context =
GST_DEBUG_FUNCPTR (gst_gl_context_glx_get_current_context);
context_class->get_gl_platform_version =
GST_DEBUG_FUNCPTR (gst_gl_context_glx_get_gl_platform_version);
}
static void
@ -472,3 +476,13 @@ gst_gl_context_glx_get_current_context (void)
{
return (guintptr) glXGetCurrentContext ();
}
static void
gst_gl_context_glx_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor)
{
GstGLContextGLX *context_glx = GST_GL_CONTEXT_GLX (context);
*major = context_glx->priv->glx_major;
*minor = context_glx->priv->glx_minor;
}