feat(go4k&sointu): Export .h C header files from the songs using go, also automatically during build for the tests.

The header files are automatically generated during build. No need to #define anything; everything is fixed by the .asm file. This adds go as a dependency to run the unit tests, but this is probably not a bad thing, as go is probably needed anyway if one wants to actually start developing Sointu.

tests/test_render_samples.h

@@ -0,0 +1,38 @@
+#ifndef SU_RENDER_H
+#define SU_RENDER_H
+
+#define SU_MAX_SAMPLES     105840
+#define SU_BUFFER_LENGTH   (SU_MAX_SAMPLES*2)
+
+#define SU_SAMPLE_RATE     44100
+#define SU_BPM             100
+#define SU_PATTERN_SIZE    16
+#define SU_MAX_PATTERNS    1
+#define SU_TOTAL_ROWS      (SU_MAX_PATTERNS*SU_PATTERN_SIZE)
+#define SU_SAMPLES_PER_ROW (SU_SAMPLE_RATE*4*60/(BPM*16))
+
+#include <stdint.h>
+#if UINTPTR_MAX == 0xffffffff
+    #if defined(__clang__) || defined(__GNUC__)
+        #define SU_CALLCONV __attribute__ ((stdcall))
+    #elif defined(_WIN32)
+        #define SU_CALLCONV __stdcall
+    #endif
+#else
+    #define SU_CALLCONV
+#endif
+
+typedef float SUsample;
+#define SU_SAMPLE_RANGE 1.0f
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void SU_CALLCONV su_render_song(SUsample *buffer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif