Fix replay feature

1 files changed, 6 insertions, 6 deletions

diff --git a/tools/gui/ring-buffer.c b/tools/gui/ring-buffer.c
index 5915d2a..ec2638c 100644
--- a/tools/gui/ring-buffer.c
+++ b/tools/gui/ring-buffer.c
@@ -12,7 +12,7 @@ ring_buffer_new (gsize block_size,
     buffer->block_size = block_size;
     buffer->n_blocks_total = n_blocks;
     buffer->n_blocks_used = 0;
-    buffer->start_index = 0;
+    buffer->current_index = 0;
     buffer->data = g_malloc0_n (n_blocks, block_size);
 
     return buffer;
@@ -29,13 +29,13 @@ void
 ring_buffer_reset (RingBuffer *buffer)
 {
     buffer->n_blocks_used = 0;
-    buffer->start_index = 0;
+    buffer->current_index = 0;
 }
 
 gpointer
 ring_buffer_get_current_pointer (RingBuffer *buffer)
 {
-    return ring_buffer_get_pointer (buffer, 0);
+    return buffer->data + (buffer->current_index % buffer->n_blocks_total) * buffer->block_size;
 }
 
 gpointer
@@ -43,7 +43,7 @@ ring_buffer_get_pointer (RingBuffer *buffer,
                          guint       index)
 {
     g_assert (index < buffer->n_blocks_total);
-    return buffer->data + ((buffer->start_index + index) % buffer->n_blocks_total) * buffer->block_size;
+    return buffer->data + ((buffer->current_index - buffer->n_blocks_used + index) % buffer->n_blocks_total) * buffer->block_size;
 }
 
 guint
@@ -55,10 +55,10 @@ ring_buffer_get_num_blocks (RingBuffer *buffer)
 void
 ring_buffer_proceed (RingBuffer *buffer)
 {
-    buffer->start_index++;
+    buffer->current_index++;
 
     if (buffer->n_blocks_used < buffer->n_blocks_total)
         buffer->n_blocks_used++;
     else
-        buffer->start_index = buffer->start_index % buffer->n_blocks_total;
+        buffer->current_index = buffer->current_index % buffer->n_blocks_total;
 }