1 files changed, 36 insertions, 0 deletions
diff --git a/plugins/gme/Game_Music_Emu-0.5.2/player/Audio_Scope.h b/plugins/gme/Game_Music_Emu-0.5.2/player/Audio_Scope.h
new file mode 100644
index 00000000..75334676
--- /dev/null
+++ b/plugins/gme/Game_Music_Emu-0.5.2/player/Audio_Scope.h
@@ -0,0 +1,36 @@
+// Simple audio waveform scope in a window, using SDL multimedia library
+
+#ifndef AUDIO_SCOPE_H
+#define AUDIO_SCOPE_H
+
+#include "SDL.h"
+
+class Audio_Scope {
+public:
+	typedef const char* error_t;
+	
+	// Initialize scope window of specified size. Height must be 256 or less.
+	error_t init( int width, int height );
+	
+	// Draw at most 'count' samples from 'in', skipping 'step' samples after
+	// each sample drawn. Step can be less than 1.0.
+	error_t draw( const short* in, long count, double step = 1.0 );
+	
+	Audio_Scope();
+	~Audio_Scope();
+	
+private:
+	typedef unsigned char byte;
+	SDL_Surface* screen;
+	SDL_Surface* surface;
+	byte* buf;
+	int buf_size;
+	int sample_shift;
+	int low_y;
+	int high_y;
+	int v_offset;
+	
+	void render( short const* in, long count, long step );
+};
+
+#endif