[Var] minimp3: Update to fork <https://github.com/manxorist/minimp3/r…

…eleases/tag/openmpt-2024-08-15-v2> commit 30b5aea9b6d000f197798ddd44476b641a4d0ba7 (2024-08-15). This applies the following pull requests: <lieff/minimp3#126>, <lieff/minimp3#96>, <lieff/minimp3#97>.

git-svn-id: https://source.openmpt.org/svn/openmpt/trunk/OpenMPT@21443 56274372-70c3-4bfc-bfc3-4c3a0b034d27

include/minimp3/OpenMPT.txt

@@ -1,6 +1,10 @@
 minimp3 library from https://github.com/lieff/minimp3
-commit 50d2aaf360a53653b718fead8e258d654c3a7e41 (2021-11-27)
+Fork https://github.com/manxorist/minimp3/releases/tag/openmpt-2024-08-15-v2
+commit 30b5aea9b6d000f197798ddd44476b641a4d0ba7 (2024-08-15)
 The following changes have been made:
  *  minimp3.c has been added
- *  some warnings have been fixed
+ *  The following pull rquests have been merged:
+     *  https://github.com/lieff/minimp3/pull/126
+     *  https://github.com/lieff/minimp3/pull/96
+     *  https://github.com/lieff/minimp3/pull/97
  *  all modifications are marked by /* OpenMPT */

include/minimp3/minimp3.h

@@ -176,11 +176,7 @@ static int have_simd(void)
 #define VMUL_S(x, s)  vmulq_f32(x, vmovq_n_f32(s))
 #define VREV(x) vcombine_f32(vget_high_f32(vrev64q_f32(x)), vget_low_f32(vrev64q_f32(x)))
 typedef float32x4_t f4;
-#if 1 /* OpenMPT */
 static int have_simd(void)
-#else /* OpenMPT */
-static int have_simd()
-#endif /* OpenMPT */
 {   /* TODO: detect neon for !MINIMP3_ONLY_SIMD */
     return 1;
 }
@@ -195,7 +191,7 @@ static int have_simd()
 #define HAVE_SIMD 0
 #endif /* !defined(MINIMP3_NO_SIMD) */
 
-#if defined(__ARM_ARCH) && (__ARM_ARCH >= 6) && !defined(__aarch64__) && !defined(_M_ARM64)
+#if defined(__ARM_ARCH) && (__ARM_ARCH >= 6) && !defined(__aarch64__) && !defined(_M_ARM64) && !defined(__ARM_ARCH_6M__)
 #define HAVE_ARMV6 1
 static __inline__ __attribute__((always_inline)) int32_t minimp3_clip_int16_arm(int32_t a)
 {
@@ -945,15 +941,16 @@ static void L3_stereo_top_band(const float *right, const uint8_t *sfb, int nband
 static void L3_stereo_process(float *left, const uint8_t *ist_pos, const uint8_t *sfb, const uint8_t *hdr, int max_band[3], int mpeg2_sh)
 {
     static const float g_pan[7*2] = { 0,1,0.21132487f,0.78867513f,0.36602540f,0.63397460f,0.5f,0.5f,0.63397460f,0.36602540f,0.78867513f,0.21132487f,1,0 };
-    unsigned i, max_pos = HDR_TEST_MPEG1(hdr) ? 7 : 64;
+    const uint8_t mpeg1 = HDR_TEST_MPEG1(hdr);
+    unsigned i, max_pos = mpeg1 ? 7 : 64;
 
     for (i = 0; sfb[i]; i++)
     {
         unsigned ipos = ist_pos[i];
         if ((int)i > max_band[i % 3] && ipos < max_pos)
         {
             float kl, kr, s = HDR_TEST_MS_STEREO(hdr) ? 1.41421356f : 1;
-            if (HDR_TEST_MPEG1(hdr))
+            if (mpeg1)
             {
                 kl = g_pan[2*ipos];
                 kr = g_pan[2*ipos + 1];
@@ -1773,7 +1770,7 @@ int mp3dec_decode_frame(mp3dec_t *dec, const uint8_t *mp3, int mp3_bytes, mp3d_s
         {
             for (igr = 0; igr < (HDR_TEST_MPEG1(hdr) ? 2 : 1); igr++, pcm += 576*info->channels)
             {
-                memset(scratch.grbuf[0], 0, 576*2*sizeof(float));
+                memset(scratch.grbuf, 0, sizeof(scratch.grbuf));
                 L3_decode(dec, &scratch, scratch.gr_info + igr*info->channels, info->channels);
                 mp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 18, info->channels, pcm, scratch.syn[0]);
             }
@@ -1787,15 +1784,15 @@ int mp3dec_decode_frame(mp3dec_t *dec, const uint8_t *mp3, int mp3_bytes, mp3d_s
         L12_scale_info sci[1];
         L12_read_scale_info(hdr, bs_frame, sci);
 
-        memset(scratch.grbuf[0], 0, 576*2*sizeof(float));
+        memset(scratch.grbuf, 0, sizeof(scratch.grbuf));
         for (i = 0, igr = 0; igr < 3; igr++)
         {
             if (12 == (i += L12_dequantize_granule(scratch.grbuf[0] + i, bs_frame, sci, info->layer | 1)))
             {
                 i = 0;
                 L12_apply_scf_384(sci, sci->scf + igr, scratch.grbuf[0]);
                 mp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 12, info->channels, pcm, scratch.syn[0]);
-                memset(scratch.grbuf[0], 0, 576*2*sizeof(float));
+                memset(scratch.grbuf, 0, sizeof(scratch.grbuf));
                 pcm += 384*info->channels;
             }
             if (bs_frame->pos > bs_frame->limit)