rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 65 insertions, 0 deletions

diff --git a/libs/ardour/ardour/mix.h b/libs/ardour/ardour/mix.h
new file mode 100644
index 0000000000..67779f0e07
--- /dev/null
+++ b/libs/ardour/ardour/mix.h
@@ -0,0 +1,65 @@
+/*
+    Copyright (C) 2005 Sampo Savolainen
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+#ifndef __ardour_mix_h__
+#define __ardour_mix_h__
+
+#include <ardour/types.h>
+#include <ardour/utils.h>
+#include <ardour/io.h>
+
+#if defined (ARCH_X86) && defined (BUILD_SSE_OPTIMIZATIONS)
+
+extern "C" {
+/* SSE functions */
+	float x86_sse_compute_peak		(const ARDOUR::Sample * buf, nframes_t nsamples, float current);
+	void  x86_sse_apply_gain_to_buffer	(ARDOUR::Sample * buf, nframes_t nframes, float gain);
+	void  x86_sse_mix_buffers_with_gain	(ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain);
+	void  x86_sse_mix_buffers_no_gain	(ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes);
+}
+
+void  x86_sse_find_peaks                (const ARDOUR::Sample * buf, nframes_t nsamples, float *min, float *max);
+
+/* debug wrappers for SSE functions */
+
+float debug_compute_peak		(const ARDOUR::Sample * buf, nframes_t nsamples, float current);
+void  debug_apply_gain_to_buffer	(ARDOUR::Sample * buf, nframes_t nframes, float gain);
+void  debug_mix_buffers_with_gain	(ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain);
+void  debug_mix_buffers_no_gain		(ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes);
+
+#endif
+
+#if defined (__APPLE__)
+
+float veclib_compute_peak              (const ARDOUR::Sample * buf, nframes_t nsamples, float current);
+void veclib_find_peaks                 (const ARDOUR::Sample * buf, nframes_t nsamples, float *min, float *max);
+void  veclib_apply_gain_to_buffer      (ARDOUR::Sample * buf, nframes_t nframes, float gain);
+void  veclib_mix_buffers_with_gain     (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain);
+void  veclib_mix_buffers_no_gain       (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes);
+
+#endif
+
+/* non-optimized functions */
+
+float default_compute_peak              (const ARDOUR::Sample * buf, nframes_t nsamples, float current);
+void  default_find_peaks                (const ARDOUR::Sample * buf, nframes_t nsamples, float *min, float *max);
+void  default_apply_gain_to_buffer      (ARDOUR::Sample * buf, nframes_t nframes, float gain);
+void  default_mix_buffers_with_gain     (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain);
+void  default_mix_buffers_no_gain       (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes);
+
+#endif /* __ardour_mix_h__ */