* Boston, MA 02110-1301, USA.
*/
+/**
+ * SECTION:gstgldisplay_egl
+ * @short_description: EGL Display connection
+ * @title: GstGLDisplayEGL
+ * @see_also: #GstGLDisplay
+ *
+ * #GstGLDisplayEGL represents a connection to an EGL `EGLDisplay` handle created
+ * internally (gst_gl_display_egl_new()) or wrapped by the application
+ * (gst_gl_display_egl_new_with_egl_display())
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gsteglimage.h"
#include "gstglmemoryegl.h"
-GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
-#define GST_CAT_DEFAULT gst_gl_display_debug
+GST_DEBUG_CATEGORY_STATIC (gst_gl_display_egl_debug);
+#define GST_CAT_DEFAULT gst_gl_display_egl_debug
#ifndef EGL_PLATFORM_X11
#define EGL_PLATFORM_X11 0x31D5
#ifndef EGL_PLATFORM_WAYLAND
#define EGL_PLATFORM_WAYLAND 0x31D8
#endif
+#ifndef EGL_PLATFORM_GBM_MESA
+#define EGL_PLATFORM_GBM_MESA 0x31D7
+#endif
#ifndef EGL_PLATFORM_ANDROID
#define EGL_PLATFORM_ANDROID 0x3141
#endif
+#ifndef EGL_PLATFORM_DEVICE_EXT
+#define EGL_PLATFORM_DEVICE_EXT 0x313F
+#endif
+#ifndef EGL_PLATFORM_ANGLE_ANGLE
+#define EGL_PLATFORM_ANGLE_ANGLE 0x3202
+#endif
typedef EGLDisplay (*_gst_eglGetPlatformDisplay_type) (EGLenum platform,
void *native_display, const EGLint * attrib_list);
static guintptr gst_gl_display_egl_get_handle (GstGLDisplay * display);
static void
+init_debug (void)
+{
+ static volatile gsize _init = 0;
+
+ if (g_once_init_enter (&_init)) {
+ GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "gldisplayegl", 0,
+ "OpenGL EGL Display");
+ g_once_init_leave (&_init, 1);
+ }
+}
+
+static void
gst_gl_display_egl_class_init (GstGLDisplayEGLClass * klass)
{
GST_GL_DISPLAY_CLASS (klass)->get_handle =
* @type: a #GstGLDisplayType
* @display: pointer to a display (or 0)
*
- * Attempts to create a new #EGLDisplay from @display. If @type is
- * %GST_GL_DISPLAY_TYPE_ANY, then @display must be 0.
+ * Attempts to create a new `EGLDisplay` from @display. If @type is
+ * %GST_GL_DISPLAY_TYPE_ANY, then @display must be 0. @type must not be
+ * %GST_GL_DISPLAY_TYPE_NONE.
*
- * Returns: A #EGLDisplay or %EGL_NO_DISPLAY
+ * Returns: A `EGLDisplay` or `EGL_NO_DISPLAY`
*
* Since: 1.12
*/
{
const gchar *egl_exts;
EGLDisplay ret = EGL_NO_DISPLAY;
- _gst_eglGetPlatformDisplay_type _gst_eglGetPlatformDisplay;
+ _gst_eglGetPlatformDisplay_type _gst_eglGetPlatformDisplay = NULL;
+ g_return_val_if_fail (type != GST_GL_DISPLAY_TYPE_NONE, EGL_NO_DISPLAY);
g_return_val_if_fail ((type != GST_GL_DISPLAY_TYPE_ANY && display != 0)
|| (type == GST_GL_DISPLAY_TYPE_ANY && display == 0), EGL_NO_DISPLAY);
- g_return_val_if_fail ((type != GST_GL_DISPLAY_TYPE_NONE
- || (type == GST_GL_DISPLAY_TYPE_NONE
- && display == 0)), EGL_NO_DISPLAY);
+
+ init_debug ();
/* given an EGLDisplay already */
if (type == GST_GL_DISPLAY_TYPE_EGL)
return (gpointer) display;
- if (type == GST_GL_DISPLAY_TYPE_NONE)
- type = GST_GL_DISPLAY_TYPE_ANY;
-
egl_exts = eglQueryString (EGL_NO_DISPLAY, EGL_EXTENSIONS);
GST_DEBUG ("egl no display extensions: %s", egl_exts);
if (!gst_gl_check_extension ("EGL_EXT_platform_base", egl_exts))
goto default_display;
+ /* we need EXT for WinRT to pass attributes */
+#if !GST_GL_HAVE_WINDOW_WINRT
_gst_eglGetPlatformDisplay = (_gst_eglGetPlatformDisplay_type)
eglGetProcAddress ("eglGetPlatformDisplay");
+#endif
if (!_gst_eglGetPlatformDisplay)
_gst_eglGetPlatformDisplay = (_gst_eglGetPlatformDisplay_type)
eglGetProcAddress ("eglGetPlatformDisplayEXT");
NULL);
}
#endif
+#if GST_GL_HAVE_WINDOW_GBM
+ if (ret == EGL_NO_DISPLAY && (type & GST_GL_DISPLAY_TYPE_GBM) &&
+ (gst_gl_check_extension ("EGL_MESA_platform_gbm", egl_exts) ||
+ gst_gl_check_extension ("EGL_KHR_platform_gbm", egl_exts))) {
+ ret = _gst_eglGetPlatformDisplay (EGL_PLATFORM_GBM_MESA, (gpointer) display,
+ NULL);
+ }
+#endif
+#if GST_GL_HAVE_WINDOW_WINRT
+ if (ret == EGL_NO_DISPLAY && (type & GST_GL_DISPLAY_TYPE_EGL) &&
+ (gst_gl_check_extension ("EGL_ANGLE_platform_angle", egl_exts) ||
+ gst_gl_check_extension ("EGL_ANGLE_platform_angle", egl_exts))) {
+ const EGLint attrs[] = {
+ /* These are the default display attributes, used to request ANGLE's
+ * D3D11 renderer. eglInitialize will only succeed with these
+ * attributes if the hardware supports D3D11 Feature Level 10_0+. */
+ EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
+
+#ifdef EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER
+ /* EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER is an optimization
+ * that can have large performance benefits on mobile devices. Its
+ * syntax is subject to change, though. Please update your Visual
+ * Studio templates if you experience compilation issues with it. */
+ EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
+#endif
+
+ /* EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE is an option that
+ * enables ANGLE to automatically call the IDXGIDevice3::Trim method
+ * on behalf of the application when it gets suspended. Calling
+ * IDXGIDevice3::Trim when an application is suspended is a Windows
+ * Store application certification requirement. */
+ EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
+ EGL_NONE,
+ };
+ ret = _gst_eglGetPlatformDisplay (EGL_PLATFORM_ANGLE_ANGLE,
+ (gpointer) display, attrs);
+ }
+#endif
+ if (ret == EGL_NO_DISPLAY && (type & GST_GL_DISPLAY_TYPE_EGL_DEVICE) &&
+ (gst_gl_check_extension ("EGL_EXT_device_base", egl_exts) &&
+ gst_gl_check_extension ("EGL_EXT_platform_device", egl_exts))) {
+ ret =
+ _gst_eglGetPlatformDisplay (EGL_PLATFORM_DEVICE_EXT, (gpointer) display,
+ NULL);
+ }
/* android only has one winsys/display connection */
if (ret != EGL_NO_DISPLAY)
{
GstGLDisplayEGL *ret;
- GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
+ init_debug ();
ret = g_object_new (GST_TYPE_GL_DISPLAY_EGL, NULL);
gst_object_ref_sink (ret);
gst_gl_display_egl_get_from_native (GST_GL_DISPLAY_TYPE_ANY, 0);
if (!ret->display) {
- GST_ERROR ("Failed to open EGL display connection");
+ GST_INFO ("Failed to open EGL display connection");
}
return ret;
g_return_val_if_fail (display != NULL, NULL);
- GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
+ init_debug ();
ret = g_object_new (GST_TYPE_GL_DISPLAY_EGL, NULL);
gst_object_ref_sink (ret);
/**
* gst_gl_display_egl_from_gl_display:
- * @display: an existing #GstGLDisplay
+ * @display: (transfer none): an existing #GstGLDisplay
*
* Creates a EGL display connection from a native Display.
*
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), NULL);
- GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
+ init_debug ();
if (GST_IS_GL_DISPLAY_EGL (display)) {
GST_LOG_OBJECT (display, "display %" GST_PTR_FORMAT "is already a "
projects / platform / upstream / gstreamer.git / blobdiff