checkasm: add test for v210dec

tests/checkasm/Makefile

@@ -25,6 +25,7 @@ AVCODECOBJS-$(CONFIG_JPEG2000_DECODER)  += jpeg2000dsp.o
 AVCODECOBJS-$(CONFIG_PIXBLOCKDSP)       += pixblockdsp.o
 AVCODECOBJS-$(CONFIG_HEVC_DECODER)      += hevc_add_res.o hevc_idct.o hevc_sao.o
 AVCODECOBJS-$(CONFIG_UTVIDEO_DECODER)   += utvideodsp.o
+AVCODECOBJS-$(CONFIG_V210_DECODER)      += v210dec.o
 AVCODECOBJS-$(CONFIG_V210_ENCODER)      += v210enc.o
 AVCODECOBJS-$(CONFIG_VP9_DECODER)       += vp9dsp.o
 

tests/checkasm/checkasm.c

@@ -136,6 +136,9 @@ static const struct {
     #if CONFIG_UTVIDEO_DECODER
         { "utvideodsp", checkasm_check_utvideodsp },
     #endif
+    #if CONFIG_V210_DECODER
+        { "v210dec", checkasm_check_v210dec },
+    #endif
     #if CONFIG_V210_ENCODER
         { "v210enc", checkasm_check_v210enc },
     #endif

tests/checkasm/checkasm.h

@@ -69,6 +69,7 @@ void checkasm_check_sbrdsp(void);
 void checkasm_check_synth_filter(void);
 void checkasm_check_sw_rgb(void);
 void checkasm_check_utvideodsp(void);
+void checkasm_check_v210dec(void);
 void checkasm_check_v210enc(void);
 void checkasm_check_vf_hflip(void);
 void checkasm_check_vf_threshold(void);

tests/checkasm/v210dec.c

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2019 James Darnley
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <string.h>
+#include "checkasm.h"
+#include "libavcodec/v210dec.h"
+
+static uint32_t get_v210(void)
+{
+    uint32_t t0 = rnd() & 0x3ff,
+             t1 = rnd() & 0x3ff,
+             t2 = rnd() & 0x3ff;
+    uint32_t value =  t0
+                   | (t1 << 10)
+                   | (t2 << 20);
+    return value;
+}
+
+#define NUM_SAMPLES 2048
+
+static void randomize_buffers(uint32_t *src0, uint32_t *src1, int len)
+{
+    for (int i = 0; i < len; i++) {
+        uint32_t value = get_v210();
+        src0[i] = value;
+        src1[i] = value;
+    }
+}
+
+void checkasm_check_v210dec(void)
+{
+    V210DecContext h;
+
+    h.aligned_input = 0;
+    ff_v210dec_init(&h);
+
+    if (check_func(h.unpack_frame, "v210_unpack")) {
+        uint32_t src0[NUM_SAMPLES/3];
+        uint32_t src1[NUM_SAMPLES/3];
+        uint16_t y0[NUM_SAMPLES/2];
+        uint16_t y1[NUM_SAMPLES/2];
+        uint16_t u0[NUM_SAMPLES/4];
+        uint16_t u1[NUM_SAMPLES/4];
+        uint16_t v0[NUM_SAMPLES/4];
+        uint16_t v1[NUM_SAMPLES/4];
+        declare_func(void, const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+        const int pixels = NUM_SAMPLES / 2 / 6 * 6;
+
+        randomize_buffers(src0, src1, NUM_SAMPLES/3);
+        call_ref(src0, y0, u0, v0, pixels);
+        call_new(src1, y1, u1, v1, pixels);
+        if (memcmp(src0, src1, NUM_SAMPLES/3 * sizeof src0[0])
+                || memcmp(y0, y1, pixels * sizeof y0[0])
+                || memcmp(u0, u1, pixels/2 * sizeof u0[0])
+                || memcmp(v0, v1, pixels/2 * sizeof v0[0]))
+            fail();
+        bench_new(src1, y1, u1, v1, pixels);
+    }
+    report("v210_unpack");
+}