x86/jpeg2000dsp: add ff_ict_float_{fma3,fma4}

jpeg2000_ict_float_c: 2296.0
jpeg2000_ict_float_sse: 628.0
jpeg2000_ict_float_avx: 317.0
jpeg2000_ict_float_fma3: 262.0

Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/x86/jpeg2000dsp.asm

@@ -74,6 +74,19 @@ align 16
     movaps   m1, [src1q+csizeq]
     movaps   m2, [src2q+csizeq]
 
+%if cpuflag(fma4) || cpuflag(fma3)
+%if cpuflag(fma4)
+    fnmaddps  m5, m1, ICT1, m0
+    fmaddps   m4, m2, ICT0, m0
+%else ; fma3
+    movaps    m5, m1
+    movaps    m4, m2
+    fnmaddps  m5, m5, ICT1, m0
+    fmaddps   m4, m4, ICT0, m0
+%endif
+    fmaddps   m0, m1, ICT3, m0
+    fnmaddps  m5, m2, ICT2, m5
+%else ; non FMA
 %if cpuflag(avx)
     mulps    m5, m1, ICT1
     mulps    m4, m2, ICT0
@@ -93,6 +106,7 @@ align 16
     addps    m4, m4, m0
     addps    m0, m0, m1
     subps    m5, m5, m2
+%endif
 
     movaps   [src0q+csizeq], m4
     movaps   [src2q+csizeq], m0
@@ -106,6 +120,12 @@ INIT_XMM sse
 ICT_FLOAT 10
 INIT_YMM avx
 ICT_FLOAT 9
+%if HAVE_FMA4_EXTERNAL
+INIT_XMM fma4
+ICT_FLOAT 9
+%endif
+INIT_YMM fma3
+ICT_FLOAT 9
 
 ;***************************************************************************
 ; ff_rct_int_<opt>(int32_t *src0, int32_t *src1, int32_t *src2, int csize)

libavcodec/x86/jpeg2000dsp_init.c

@@ -26,6 +26,8 @@
 
 void ff_ict_float_sse(void *src0, void *src1, void *src2, int csize);
 void ff_ict_float_avx(void *src0, void *src1, void *src2, int csize);
+void ff_ict_float_fma3(void *src0, void *src1, void *src2, int csize);
+void ff_ict_float_fma4(void *src0, void *src1, void *src2, int csize);
 void ff_rct_int_sse2 (void *src0, void *src1, void *src2, int csize);
 void ff_rct_int_avx2 (void *src0, void *src1, void *src2, int csize);
 
@@ -44,6 +46,14 @@ av_cold void ff_jpeg2000dsp_init_x86(Jpeg2000DSPContext *c)
         c->mct_decode[FF_DWT97] = ff_ict_float_avx;
     }
 
+    if (EXTERNAL_FMA4(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_fma4;
+    }
+
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_fma3;
+    }
+
     if (EXTERNAL_AVX2_FAST(cpu_flags)) {
         c->mct_decode[FF_DWT53] = ff_rct_int_avx2;
     }