From f74981874f578ce5b698be7542a185d4d06b8873 Mon Sep 17 00:00:00 2001
From: Taybin Rutkin <taybin@taybin.com>
Date: Wed, 14 Mar 2007 21:33:44 +0000
Subject: veclib implementation of find_peaks().

git-svn-id: svn://localhost/ardour2/trunk@1590 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/ardour/mix.h                      |  6 +++---
 libs/ardour/ardour/session.h                  |  2 +-
 libs/ardour/mix.cc                            | 22 +++++-----------------
 libs/pbd/macosx/pbd.xcodeproj/project.pbxproj |  2 ++
 4 files changed, 11 insertions(+), 21 deletions(-)

(limited to 'libs')

diff --git a/libs/ardour/ardour/mix.h b/libs/ardour/ardour/mix.h
index 7515401a2a..68f57c1aa8 100644
--- a/libs/ardour/ardour/mix.h
+++ b/libs/ardour/ardour/mix.h
@@ -36,7 +36,7 @@ extern "C" {
 	void  x86_sse_mix_buffers_no_gain	(ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes);
 }
 
-float x86_sse_find_peaks                        (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
+void x86_sse_find_peaks                        (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
 
 /* debug wrappers for SSE functions */
 
@@ -54,7 +54,7 @@ void  debug_mix_buffers_no_gain		(ARDOUR::Sample *dst, ARDOUR::Sample *src, nfra
 
 float veclib_compute_peak              (ARDOUR::Sample *buf, nframes_t nsamples, float current);
 
-float veclib_find_peaks                (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
+void veclib_find_peaks                (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
 
 void  veclib_apply_gain_to_buffer      (ARDOUR::Sample *buf, nframes_t nframes, float gain);
 
@@ -68,7 +68,7 @@ void  veclib_mix_buffers_no_gain       (ARDOUR::Sample *dst, ARDOUR::Sample *src
 
 float compute_peak              (ARDOUR::Sample *buf, nframes_t nsamples, float current);
 
-float find_peaks                (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
+void find_peaks                (ARDOUR::Sample *buf, nframes_t nsamples, float *min, float *max);
 
 void  apply_gain_to_buffer      (ARDOUR::Sample *buf, nframes_t nframes, float gain);
 
diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 7794dc95c8..05840cbc43 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -906,7 +906,7 @@ class Session : public PBD::StatefulDestructible
 				  float opt);
 
 	typedef float (*compute_peak_t)			(Sample *, nframes_t, float);
-	typedef float (*find_peaks_t)                   (Sample *, nframes_t, float *, float*);
+	typedef void  (*find_peaks_t)                   (Sample *, nframes_t, float *, float*);
 	typedef void  (*apply_gain_to_buffer_t)		(Sample *, nframes_t, float);
 	typedef void  (*mix_buffers_with_gain_t)	(Sample *, Sample *, nframes_t, float);
 	typedef void  (*mix_buffers_no_gain_t)		(Sample *, Sample *, nframes_t);
diff --git a/libs/ardour/mix.cc b/libs/ardour/mix.cc
index e2096178dd..a32c274b7c 100644
--- a/libs/ardour/mix.cc
+++ b/libs/ardour/mix.cc
@@ -89,7 +89,7 @@ compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
 	return current;
 }	
 
-float
+void
 find_peaks (ARDOUR::Sample *buf, nframes_t nframes, float *min, float *max)
 {
 	long i;
@@ -142,25 +142,13 @@ veclib_compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
         return f_max(current, tmpmax);
 }
 
-float
+void
 veclib_find_peaks (ARDOUR::Sample *buf, nframes_t nframes, float *min, float *max)
 {
-	// TODO: someone with veclib skills needs to write this one
-	long i;
-	float a, b;
-
-	a = *max;
-	b = *min;
-
-	for (i = 0; i < nframes; i++) 
-	{
-		a = fmax (buf[i], a);
-		b = fmin (buf[i], b);
-	}
-
-	*max = a;
-	*min = b;
+	vDSP_maxv (buf, 1, max, nframes);
+	vDSP_minv (buf, 1, min, nframes);
 }
+
 void
 veclib_apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
 {
diff --git a/libs/pbd/macosx/pbd.xcodeproj/project.pbxproj b/libs/pbd/macosx/pbd.xcodeproj/project.pbxproj
index 4fcb6a7efd..535d16b8a2 100644
--- a/libs/pbd/macosx/pbd.xcodeproj/project.pbxproj
+++ b/libs/pbd/macosx/pbd.xcodeproj/project.pbxproj
@@ -533,6 +533,7 @@
 		4FADC24808B4156D00ABE55E /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = (
 					"$(NATIVE_ARCH)",
 					ppc,
@@ -557,6 +558,7 @@
 		69C9AF150B97A83A0097DE90 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(NATIVE_ARCH)";
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = stabs;
-- 
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