libs: display{egl,glx}: cache GstVaapiTextures

instances when created and reuse

This patch improves performance when glimagesink uploads a GL texture.

It caches the GStVaapiTexture instances in GstVaapiDisplay{GLX,EGL}, using an
instance of GstVaapiTextureMap, so our internal texture structure can be found
by matching the GL texture id for each frame upload process, avoiding the
internal texture structure creation and its following destruction.

https://bugzilla.gnome.org/show_bug.cgi?id=769293

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>

gst-libs/gst/vaapi/gstvaapidisplay.c

@@ -32,6 +32,7 @@
 #include "gstvaapiutils.h"
 #include "gstvaapivalue.h"
 #include "gstvaapidisplay.h"
+#include "gstvaapitexturemap.h"
 #include "gstvaapidisplay_priv.h"
 #include "gstvaapiworkarounds.h"
 #include "gstvaapiversion.h"
@@ -2149,3 +2150,28 @@ gst_vaapi_display_has_opengl (GstVaapiDisplay * display)
   return (klass->display_type == GST_VAAPI_DISPLAY_TYPE_GLX ||
       klass->display_type == GST_VAAPI_DISPLAY_TYPE_EGL);
 }
+
+/**
+ * gst_vaapi_display_reset_texture_map:
+ * @display: a #GstVaapiDisplay
+ *
+ * Reset the internal #GstVaapiTextureMap if available.
+ *
+ * This function is thread safe.
+ */
+void
+gst_vaapi_display_reset_texture_map (GstVaapiDisplay * display)
+{
+  GstVaapiDisplayClass *klass;
+  GstVaapiTextureMap *map;
+
+  g_return_if_fail (display != NULL);
+
+  if (!gst_vaapi_display_has_opengl (display))
+    return;
+  klass = GST_VAAPI_DISPLAY_GET_CLASS (display);
+  if (!klass->get_texture_map)
+    return;
+  if ((map = klass->get_texture_map (display)))
+    gst_vaapi_texture_map_reset (map);
+}

gst-libs/gst/vaapi/gstvaapidisplay.h

@@ -257,6 +257,9 @@ gst_vaapi_display_get_vendor_string (GstVaapiDisplay * display);
 gboolean
 gst_vaapi_display_has_opengl (GstVaapiDisplay * display);
 
+void
+gst_vaapi_display_reset_texture_map (GstVaapiDisplay * display);
+
 G_END_DECLS
 
 #endif /* GST_VAAPI_DISPLAY_H */

gst-libs/gst/vaapi/gstvaapidisplay_egl.c

@@ -232,14 +232,49 @@ gst_vaapi_display_egl_create_window (GstVaapiDisplay * display, GstVaapiID id,
   return gst_vaapi_window_egl_new (display, width, height);
 }
 
+static void
+ensure_texture_map (GstVaapiDisplayEGL * display)
+{
+  if (!display->texture_map)
+    display->texture_map = gst_vaapi_texture_map_new ();
+}
+
 static GstVaapiTexture *
 gst_vaapi_display_egl_create_texture (GstVaapiDisplay * display, GstVaapiID id,
     guint target, guint format, guint width, guint height)
 {
-  if (id != GST_VAAPI_ID_INVALID)
-    return gst_vaapi_texture_egl_new_wrapped (display, id, target, format,
-        width, height);
+  GstVaapiDisplayEGL *dpy = GST_VAAPI_DISPLAY_EGL (display);
+  GstVaapiTexture *texture;
+
+  if (id == GST_VAAPI_ID_INVALID)
     return gst_vaapi_texture_egl_new (display, target, format, width, height);
+
+  ensure_texture_map (dpy);
+  if (!(texture = gst_vaapi_texture_map_lookup (dpy->texture_map, id))) {
+    if ((texture =
+            gst_vaapi_texture_egl_new_wrapped (display, id, target, format,
+                width, height))) {
+      gst_vaapi_texture_map_add (dpy->texture_map, texture, id);
+    }
+  }
+
+  return texture;
+}
+
+static GstVaapiTextureMap *
+gst_vaapi_display_egl_get_texture_map (GstVaapiDisplay * display)
+{
+  return GST_VAAPI_DISPLAY_EGL (display)->texture_map;
+}
+
+static void
+gst_vaapi_display_egl_finalize (GstVaapiDisplay * display)
+{
+  GstVaapiDisplayEGL *dpy = GST_VAAPI_DISPLAY_EGL (display);
+
+  if (dpy->texture_map)
+    gst_object_unref (dpy->texture_map);
+  GST_VAAPI_DISPLAY_EGL_GET_CLASS (display)->parent_finalize (display);
 }
 
 static void
@@ -254,6 +289,10 @@ gst_vaapi_display_egl_class_init (GstVaapiDisplayEGLClass * klass)
 
   gst_vaapi_display_class_init (dpy_class);
 
+  /* chain up destructor */
+  klass->parent_finalize = object_class->finalize;
+  object_class->finalize = (GDestroyNotify) gst_vaapi_display_egl_finalize;
+
   object_class->size = sizeof (GstVaapiDisplayEGL);
   dpy_class->display_type = GST_VAAPI_DISPLAY_TYPE_EGL;
   dpy_class->bind_display = (GstVaapiDisplayBindFunc)
@@ -280,6 +319,7 @@ gst_vaapi_display_egl_class_init (GstVaapiDisplayEGLClass * klass)
       gst_vaapi_display_egl_create_window;
   dpy_class->create_texture = (GstVaapiDisplayCreateTextureFunc)
       gst_vaapi_display_egl_create_texture;
+  dpy_class->get_texture_map = gst_vaapi_display_egl_get_texture_map;
 }
 
 static inline const GstVaapiDisplayClass *

gst-libs/gst/vaapi/gstvaapidisplay_egl_priv.h

@@ -24,6 +24,7 @@
 #define GST_VAAPI_DISPLAY_EGL_PRIV_H
 
 #include <gst/vaapi/gstvaapiwindow.h>
+#include <gst/vaapi/gstvaapitexturemap.h>
 #include "gstvaapidisplay_egl.h"
 #include "gstvaapidisplay_priv.h"
 #include "gstvaapiutils_egl.h"
@@ -79,6 +80,7 @@ struct _GstVaapiDisplayEGL
   EglDisplay *egl_display;
   EglContext *egl_context;
   guint gles_version;
+  GstVaapiTextureMap *texture_map;
 };
 
 /**
@@ -90,6 +92,7 @@ struct _GstVaapiDisplayEGLClass
 {
   /*< private >*/
   GstVaapiDisplayClass parent_class;
+  GDestroyNotify parent_finalize;
 };
 
 G_GNUC_INTERNAL

gst-libs/gst/vaapi/gstvaapidisplay_glx.c

@@ -50,13 +50,48 @@ gst_vaapi_display_glx_create_window (GstVaapiDisplay * display, GstVaapiID id,
       gst_vaapi_window_glx_new (display, width, height);
 }
 
+static void
+ensure_texture_map (GstVaapiDisplayGLX * display)
+{
+  if (!display->texture_map)
+    display->texture_map = gst_vaapi_texture_map_new ();
+}
+
 static GstVaapiTexture *
 gst_vaapi_display_glx_create_texture (GstVaapiDisplay * display, GstVaapiID id,
     guint target, guint format, guint width, guint height)
 {
-  return id != GST_VAAPI_ID_INVALID ?
-      gst_vaapi_texture_glx_new_wrapped (display, id, target, format) :
-      gst_vaapi_texture_glx_new (display, target, format, width, height);
+  GstVaapiTexture *texture;
+  GstVaapiDisplayGLX *dpy = GST_VAAPI_DISPLAY_GLX (display);
+
+  if (id == GST_VAAPI_ID_INVALID)
+    return gst_vaapi_texture_glx_new (display, target, format, width, height);
+
+  ensure_texture_map (dpy);
+  if (!(texture = gst_vaapi_texture_map_lookup (dpy->texture_map, id))) {
+    if ((texture =
+            gst_vaapi_texture_glx_new_wrapped (display, id, target, format))) {
+      gst_vaapi_texture_map_add (dpy->texture_map, texture, id);
+    }
+  }
+
+  return texture;
+}
+
+static GstVaapiTextureMap *
+gst_vaapi_display_glx_get_texture_map (GstVaapiDisplay * display)
+{
+  return GST_VAAPI_DISPLAY_GLX (display)->texture_map;
+}
+
+static void
+gst_vaapi_display_glx_finalize (GstVaapiDisplay * display)
+{
+  GstVaapiDisplayGLX *dpy = GST_VAAPI_DISPLAY_GLX (display);
+
+  if (dpy->texture_map)
+    gst_object_unref (dpy->texture_map);
+  GST_VAAPI_DISPLAY_GLX_GET_CLASS (display)->parent_finalize (display);
 }
 
 static void
@@ -68,10 +103,15 @@ gst_vaapi_display_glx_class_init (GstVaapiDisplayGLXClass * klass)
 
   gst_vaapi_display_x11_class_init (&klass->parent_class);
 
+  /* chain up destructor */
+  klass->parent_finalize = object_class->finalize;
+  object_class->finalize = (GDestroyNotify) gst_vaapi_display_glx_finalize;
+
   object_class->size = sizeof (GstVaapiDisplayGLX);
   dpy_class->display_type = GST_VAAPI_DISPLAY_TYPE_GLX;
   dpy_class->create_window = gst_vaapi_display_glx_create_window;
   dpy_class->create_texture = gst_vaapi_display_glx_create_texture;
+  dpy_class->get_texture_map = gst_vaapi_display_glx_get_texture_map;
 }
 
 static inline const GstVaapiDisplayClass *

gst-libs/gst/vaapi/gstvaapidisplay_glx_priv.h

@@ -25,6 +25,7 @@
 
 #include <gst/vaapi/gstvaapiutils_glx.h>
 #include <gst/vaapi/gstvaapidisplay_glx.h>
+#include <gst/vaapi/gstvaapitexturemap.h>
 #include "gstvaapidisplay_x11_priv.h"
 
 G_BEGIN_DECLS
@@ -53,6 +54,7 @@ struct _GstVaapiDisplayGLX
 {
   /*< private >*/
   GstVaapiDisplayX11 parent_instance;
+  GstVaapiTextureMap *texture_map;
 };
 
 /**
@@ -64,6 +66,7 @@ struct _GstVaapiDisplayGLXClass
 {
   /*< private >*/
   GstVaapiDisplayX11Class parent_class;
+  GDestroyNotify parent_finalize;
 };
 
 G_END_DECLS

gst-libs/gst/vaapi/gstvaapidisplay_priv.h

@@ -29,6 +29,7 @@
 #include <gst/vaapi/gstvaapidisplaycache.h>
 #include <gst/vaapi/gstvaapiwindow.h>
 #include <gst/vaapi/gstvaapitexture.h>
+#include <gst/vaapi/gstvaapitexturemap.h>
 #include "gstvaapiminiobject.h"
 
 G_BEGIN_DECLS
@@ -73,6 +74,8 @@ typedef GstVaapiWindow *(*GstVaapiDisplayCreateWindowFunc) (
 typedef GstVaapiTexture *(*GstVaapiDisplayCreateTextureFunc) (
     GstVaapiDisplay * display, GstVaapiID id, guint target, guint format,
     guint width, guint height);
+typedef GstVaapiTextureMap *(*GstVaapiDisplayGetTextureMapFunc) (
+    GstVaapiDisplay * display);
 
 typedef guintptr (*GstVaapiDisplayGetVisualIdFunc) (GstVaapiDisplay * display,
     GstVaapiWindow * window);
@@ -226,6 +229,7 @@ struct _GstVaapiDisplayClass
   GstVaapiDisplayGetColormapFunc get_colormap;
   GstVaapiDisplayCreateWindowFunc create_window;
   GstVaapiDisplayCreateTextureFunc create_texture;
+  GstVaapiDisplayGetTextureMapFunc get_texture_map;
 };
 
 /* Initialization types */

gst/vaapi/gstvaapivideometa_texture.c

@@ -176,25 +176,33 @@ gst_vaapi_texture_upload (GstVideoGLTextureUploadMeta * meta,
       gst_vaapi_video_meta_get_surface_proxy (vmeta);
   GstVaapiSurface *const surface = gst_vaapi_surface_proxy_get_surface (proxy);
   GstVaapiDisplay *const dpy = GST_VAAPI_OBJECT_DISPLAY (surface);
+  GstVaapiTexture *texture = NULL;
 
   if (!gst_vaapi_display_has_opengl (dpy))
     return FALSE;
 
-  if (!meta_texture->texture ||
+  if (meta_texture->texture
       /* Check whether VA display changed */
-      GST_VAAPI_OBJECT_DISPLAY (meta_texture->texture) != dpy ||
+      && GST_VAAPI_OBJECT_DISPLAY (meta_texture->texture) == dpy
       /* Check whether texture id changed */
-      gst_vaapi_texture_get_id (meta_texture->texture) != texture_id[0]) {
+      && (gst_vaapi_texture_get_id (meta_texture->texture) == texture_id[0])) {
+    texture = meta_texture->texture;
+  }
+
+  if (!texture) {
     /* FIXME: should we assume target? */
-    GstVaapiTexture *const texture =
+    texture =
         gst_vaapi_texture_new_wrapped (dpy, texture_id[0],
         GL_TEXTURE_2D, meta_texture->gl_format, meta_texture->width,
         meta_texture->height);
+  }
+
+  if (meta_texture->texture != texture) {
     gst_vaapi_texture_replace (&meta_texture->texture, texture);
+  }
+
   if (!texture)
     return FALSE;
-    gst_vaapi_texture_unref (texture);
-  }
 
   gst_vaapi_texture_set_orientation_flags (meta_texture->texture,
       get_texture_orientation_flags (meta->texture_orientation));