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165 lines
4 KiB
C
165 lines
4 KiB
C
/*
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* gstvaapitexture.c - VA texture Hash map
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*
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* Copyright (C) 2016 Intel Corporation
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* Copyright (C) 2016 Igalia S.L.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapitexturemap
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* @short_description: VA/GLX/EGL texture hash map abstraction
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*/
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#include "gstvaapitexturemap.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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/**
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* GstVaapiTextureMap:
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*
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* Base class for API-dependent texture map.
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*/
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struct _GstVaapiTextureMap
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{
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GstObject parent_instance;
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/*< private > */
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GHashTable *texture_map;
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};
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/**
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* GstVaapiTextureMapClass:
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*
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* Base class for API-dependent texture map.
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*/
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struct _GstVaapiTextureMapClass
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{
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GstObjectClass parent_class;
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};
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#define MAX_NUM_TEXTURE 10
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G_DEFINE_TYPE (GstVaapiTextureMap, gst_vaapi_texture_map, GST_TYPE_OBJECT);
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static void
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gst_vaapi_texture_map_init (GstVaapiTextureMap * map)
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{
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map->texture_map =
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g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL,
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(GDestroyNotify) gst_mini_object_unref);
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}
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static void
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gst_vaapi_texture_map_finalize (GObject * object)
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{
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GstVaapiTextureMap *map = GST_VAAPI_TEXTURE_MAP (object);
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if (map->texture_map) {
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g_hash_table_remove_all (map->texture_map);
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g_hash_table_destroy (map->texture_map);
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}
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G_OBJECT_CLASS (gst_vaapi_texture_map_parent_class)->finalize (object);
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}
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static void
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gst_vaapi_texture_map_class_init (GstVaapiTextureMapClass * klass)
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{
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GObjectClass *const object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = gst_vaapi_texture_map_finalize;
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}
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/**
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* gst_vaapi_texture_map_new:
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*
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* Creates a texture hash map.
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*
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* Return value: the newly created #GstVaapiTextureMap object
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*/
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GstVaapiTextureMap *
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gst_vaapi_texture_map_new (void)
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{
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GstVaapiTextureMap *map;
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map = g_object_new (GST_TYPE_VAAPI_TEXTURE_MAP, NULL);
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return map;
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}
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/**
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* gst_vaapi_texture_map_add:
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* @map: a #GstVaapiTextureMap instance
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* @texture: a #GstVaapiTexture instance to add
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* @id: the id of the GLTexture
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*
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* Adds @texture into the @map table.
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*
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* Returns: %TRUE if @texture was inserted correctly.
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**/
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gboolean
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gst_vaapi_texture_map_add (GstVaapiTextureMap * map, GstVaapiTexture * texture,
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guint id)
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{
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g_return_val_if_fail (map != NULL, FALSE);
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g_return_val_if_fail (map->texture_map != NULL, FALSE);
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g_return_val_if_fail (texture != NULL, FALSE);
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if (g_hash_table_size (map->texture_map) > MAX_NUM_TEXTURE) {
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GST_WARNING ("Texture map is full");
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return FALSE;
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}
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g_hash_table_insert (map->texture_map, GUINT_TO_POINTER (id), texture);
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return TRUE;
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}
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/**
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* gst_vaapi_texture_map_lookup:
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* @map: a #GstVaapiTextureMap instance
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* @id: the id of the GLTexture
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*
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* Search for the #GstVaapiTexture associated with the GLTexture @id
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* in the @map.
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*
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* Returns: a pointer to #GstVaapiTexture if found; otherwise %NULL.
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**/
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GstVaapiTexture *
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gst_vaapi_texture_map_lookup (GstVaapiTextureMap * map, guint id)
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{
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g_return_val_if_fail (map != NULL, NULL);
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g_return_val_if_fail (map->texture_map != NULL, NULL);
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return g_hash_table_lookup (map->texture_map, GUINT_TO_POINTER (id));
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}
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/**
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* gst_vaapi_texture_map_reset:
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* @map: a #GstVaapiTextureMap instance
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*
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* Removes all the #GstVaapiTexture in the @map.
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**/
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void
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gst_vaapi_texture_map_reset (GstVaapiTextureMap * map)
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{
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g_return_if_fail (map != NULL);
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g_return_if_fail (map->texture_map != NULL);
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g_hash_table_remove_all (map->texture_map);
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}
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