Release 1.0.11

* Small math optimizations for dsp::smooth_cubic_linear and dsp::smooth_cubic_log
  functions.
* Updated module versions in dependencies.

Author: sadko4u

CHANGELOG

@@ -2,6 +2,11 @@
 * RECENT CHANGES
 *******************************************************************************
 
+=== 1.0.11 ===
+* Small math optimizations for dsp::smooth_cubic_linear and dsp::smooth_cubic_log
+  functions.
+* Updated module versions in dependencies.
+
 === 1.0.10 ===
 * ARM NEON-optimized code compiles now only for at least ARMv6 architecture.
 * Implemented linear ramping lramp_* functions optimized for

include/lsp-plug.in/dsp/version.h

@@ -25,7 +25,7 @@
 // Define version of headers
 #define LSP_DSP_LIB_MAJOR           1
 #define LSP_DSP_LIB_MINOR           0
-#define LSP_DSP_LIB_MICRO           10
+#define LSP_DSP_LIB_MICRO           11
 
 #if defined(__WINDOWS__) || defined(__WIN32__) || defined(__WIN64__) || defined(_WIN64) || defined(_WIN32) || defined(__WINNT) || defined(__WINNT__)
     #define LSP_DSP_LIB_EXPORT_MODIFIER     __declspec(dllexport)

include/private/dsp/arch/generic/graphics/interpolation.h

@@ -32,28 +32,28 @@ namespace lsp
     {
         void smooth_cubic_linear(float *dst, float start, float stop, size_t count)
         {
-            float dy = stop - start;
+            float dy = 2.0f * (stop - start);
             float nx = 1.0f / (count + 1); // Normalizing x
 
             for (size_t i=0; i<count; ++i)
             {
                 float x = i * nx;
-                *(dst++) = start + dy * x*x * (3.0f - 2.0f * x);
+                *(dst++) = start + dy * x*x * (1.5f - x);
             }
         }
 
         void smooth_cubic_log(float *dst, float start, float stop, size_t count)
         {
-            float dy = logf(stop/start);
+            float dy = 2.0f * logf(stop/start);
             float nx = 1.0f / (count + 1); // Normalizing x
 
             for (size_t i=0; i<count; ++i)
             {
                 float x = i * nx;
-                *(dst++) = start * expf(dy * x*x * (3.0f - 2.0f * x));
+                *(dst++) = start * expf(dy * x*x * (1.5f - x));
             }
         }
-    }
-}
+    } /* namespace generic */
+} /* namespace lsp */
 
 #endif /* PRIVATE_DSP_ARCH_GENERIC_GRAPHICS_INTERPOLATION_H_ */

modules.mk

@@ -19,7 +19,7 @@
 #
 
 # Variables that describe dependencies
-LSP_COMMON_LIB_VERSION     := 1.0.26
+LSP_COMMON_LIB_VERSION     := 1.0.27
 LSP_COMMON_LIB_NAME        := lsp-common-lib
 LSP_COMMON_LIB_TYPE        := src
 LSP_COMMON_LIB_URL_RO      := https://github.com/lsp-plugins/$(LSP_COMMON_LIB_NAME).git

project.mk

@@ -23,4 +23,4 @@ ARTIFACT_ID                 = LSP_DSP_LIB
 ARTIFACT_NAME               = lsp-dsp-lib
 ARTIFACT_DESC               = DSP library for digital signal processing
 ARTIFACT_HEADERS            = lsp-plug.in
-ARTIFACT_VERSION            = 1.0.10
+ARTIFACT_VERSION            = 1.0.11