Rename resampler functions to something more generic.

audio/hermite.c

@@ -17,12 +17,13 @@
 
 // Hermite resampler based on bsnes' audio library.
 
-#include "hermite.h"
+#include "resampler.h"
 #include <stdlib.h>
+#include "../boolean.h"
 
 #define CHANNELS 2
 
-struct hermite_resampler
+struct ssnes_resampler
 {
    float chan_data[CHANNELS][4];
    double r_frac;
@@ -46,13 +47,12 @@ static inline float hermite_kernel(float mu1, float a, float b, float c, float d
    return (a0 * b) + (a1 * m0) + (a2 * m1) + (a3 * c);
 }
 
-hermite_resampler_t *hermite_new(void)
+ssnes_resampler_t *resampler_new(void)
 {
-   return (hermite_resampler_t*)calloc(1, sizeof(hermite_resampler_t));
+   return (ssnes_resampler_t*)calloc(1, sizeof(ssnes_resampler_t));
 }
 
-// We make sure to allocate enough output data beforehand ... ;)
-void hermite_process(hermite_resampler_t *re, struct hermite_data *data)
+void resampler_process(ssnes_resampler_t *re, struct resampler_data *data)
 {
    double r_step = 1.0 / data->ratio;
    size_t processed_out = 0;
@@ -88,7 +88,7 @@ void hermite_process(hermite_resampler_t *re, struct hermite_data *data)
    data->output_frames = processed_out;
 }
 
-void hermite_free(hermite_resampler_t *re)
+void resampler_free(ssnes_resampler_t *re)
 {
    free(re);
 }

audio/resampler.h

@@ -15,20 +15,15 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
-// Hermite resampler based on bsnes' audio library.
-// Attempts to be similiar to the libsamplerate process interface.
 
-#ifndef __SSNES_HERMITE_H
-#define __SSNES_HERMITE_H
+#ifndef __SSNES_RESAMPLER_H
+#define __SSNES_RESAMPLER_H
 
 #include <stddef.h>
-#include "../boolean.h"
 
-typedef struct hermite_resampler hermite_resampler_t;
+typedef struct ssnes_resampler ssnes_resampler_t;
 
-hermite_resampler_t *hermite_new(void);
-
-struct hermite_data
+struct resampler_data
 {
    const float *data_in;
    float *data_out;
@@ -39,8 +34,9 @@ struct hermite_data
    double ratio;
 };
 
-void hermite_process(hermite_resampler_t *re, struct hermite_data *data);
-void hermite_free(hermite_resampler_t *re);
+ssnes_resampler_t *resampler_new(void);
+void resampler_process(ssnes_resampler_t *re, struct resampler_data *data);
+void resampler_free(ssnes_resampler_t *re);
 
 #endif
 

driver.c

@@ -325,7 +325,7 @@ void init_audio(void)
       g_extern.audio_data.chunk_size = g_extern.audio_data.nonblock_chunk_size;
    }
 
-   g_extern.audio_data.source = hermite_new();
+   g_extern.audio_data.source = resampler_new();
    if (!g_extern.audio_data.source)
       g_extern.audio_active = false;
 
@@ -374,7 +374,7 @@ void uninit_audio(void)
       driver.audio->free(driver.audio_data);
 
    if (g_extern.audio_data.source)
-      hermite_free(g_extern.audio_data.source);
+      resampler_free(g_extern.audio_data.source);
 
    free(g_extern.audio_data.data);
    g_extern.audio_data.data = NULL;

general.h

@@ -56,7 +56,7 @@
 #include "netplay.h"
 #endif
 
-#include "audio/hermite.h"
+#include "audio/resampler.h"
 
 #if defined(_WIN32) && !defined(_XBOX)
 #define WIN32_LEAN_AND_MEAN
@@ -282,7 +282,7 @@ struct global
 
    struct
    {
-      hermite_resampler_t *source;
+      ssnes_resampler_t *source;
 
       float *data;
       size_t data_ptr;

ssnes.c

@@ -298,7 +298,7 @@ static bool audio_flush(const int16_t *data, size_t samples)
 
    if (dsp_output.should_resample)
    {
-      struct hermite_data src_data = {0};
+      struct resampler_data src_data = {0};
       src_data.data_in = dsp_output.samples ? dsp_output.samples : g_extern.audio_data.data;
       src_data.data_out = g_extern.audio_data.outsamples;
       src_data.input_frames = dsp_output.samples ? dsp_output.frames : (samples / 2);
@@ -308,7 +308,7 @@ static bool audio_flush(const int16_t *data, size_t samples)
 
       src_data.ratio = g_extern.audio_data.src_ratio;
 
-      hermite_process(g_extern.audio_data.source, &src_data);
+      resampler_process(g_extern.audio_data.source, &src_data);
 
       output_data = g_extern.audio_data.outsamples;
       output_frames = src_data.output_frames;