From 61c4c5795ff9057b1c67142758418a4f982a0241 Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Mon, 9 Nov 2015 00:49:18 -0300
Subject: -support for stereo ima-adpcm sample compression & playback -support
 for converting samples to ima-adpcm upon export

---
 tools/editor/plugins/sample_editor_plugin.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'tools/editor/plugins/sample_editor_plugin.cpp')

diff --git a/tools/editor/plugins/sample_editor_plugin.cpp b/tools/editor/plugins/sample_editor_plugin.cpp
index 31fa7246ae..d88f2adc73 100644
--- a/tools/editor/plugins/sample_editor_plugin.cpp
+++ b/tools/editor/plugins/sample_editor_plugin.cpp
@@ -156,8 +156,14 @@ void SampleEditor::generate_preview_texture(const Ref<Sample>& p_sample,Ref<Imag
 					ima_adpcm.last_nibble++;
 					const uint8_t *src_ptr=sdata;
 
+					int ofs = ima_adpcm.last_nibble>>1;
+
+					if (stereo)
+						ofs*=2;
+
 					nibble = (ima_adpcm.last_nibble&1)?
-							(src_ptr[ima_adpcm.last_nibble>>1]>>4):(src_ptr[ima_adpcm.last_nibble>>1]&0xF);
+							(src_ptr[ofs]>>4):(src_ptr[ofs]&0xF);
+
 					step=_ima_adpcm_step_table[ima_adpcm.step_index];
 
 					ima_adpcm.step_index += _ima_adpcm_index_table[nibble];
-- 
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