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grd-sample-buffer.c

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+/*
+ * Copyright (C) 2025 Pascal Nowack
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include "grd-sample-buffer.h"
+
+#include <gio/gio.h>
+
+struct _GrdSampleBuffer
+{
+  uint8_t *data;
+  size_t max_size;
+
+  size_t used_size;
+};
+
+uint8_t *
+grd_sample_buffer_get_data_pointer (GrdSampleBuffer *sample_buffer)
+{
+  return sample_buffer->data;
+}
+
+gboolean
+grd_sample_buffer_load_sample (GrdSampleBuffer  *sample_buffer,
+                               uint8_t          *sample_data,
+                               size_t            sample_size,
+                               GError          **error)
+{
+  if (sample_size > sample_buffer->max_size)
+    {
+      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "The sample to load "
+                   "is too large (have: %zu Bytes, need: %zu Bytes)",
+                   sample_buffer->max_size, sample_size);
+      return FALSE;
+    }
+
+  memcpy (sample_buffer->data, sample_data, sample_size);
+  sample_buffer->used_size = sample_size;
+
+  return TRUE;
+}
+
+size_t
+grd_sample_buffer_get_sample_size (GrdSampleBuffer *sample_buffer)
+{
+  return sample_buffer->used_size;
+}
+
+GrdSampleBuffer *
+grd_sample_buffer_new (uint8_t *data,
+                       size_t   data_size)
+{
+  GrdSampleBuffer *sample_buffer;
+
+  sample_buffer = g_new0 (GrdSampleBuffer, 1);
+  sample_buffer->data = data;
+  sample_buffer->max_size = data_size;
+
+  return sample_buffer;
+}
+
+void
+grd_sample_buffer_free (GrdSampleBuffer *sample_buffer)
+{
+  g_free (sample_buffer);
+}