checkasm: add h264chroma tests

Checks all variants of put_h264_chroma and avg_h264_chroma.

tests/checkasm/Makefile

@@ -5,6 +5,7 @@ AVCODECOBJS-$(CONFIG_BLOCKDSP)          += blockdsp.o
 AVCODECOBJS-$(CONFIG_BSWAPDSP)          += bswapdsp.o
 AVCODECOBJS-$(CONFIG_FMTCONVERT)        += fmtconvert.o
 AVCODECOBJS-$(CONFIG_G722DSP)           += g722dsp.o
+AVCODECOBJS-$(CONFIG_H264CHROMA)        += h264chroma.o
 AVCODECOBJS-$(CONFIG_H264DSP)           += h264dsp.o
 AVCODECOBJS-$(CONFIG_H264PRED)          += h264pred.o
 AVCODECOBJS-$(CONFIG_H264QPEL)          += h264qpel.o

tests/checkasm/checkasm.c

@@ -105,6 +105,9 @@ static const struct {
     #if CONFIG_G722DSP
         { "g722dsp", checkasm_check_g722dsp },
     #endif
+    #if CONFIG_H264CHROMA
+        { "h264chroma", checkasm_check_h264chroma },
+    #endif
     #if CONFIG_H264DSP
         { "h264dsp", checkasm_check_h264dsp },
     #endif

tests/checkasm/checkasm.h

@@ -56,6 +56,7 @@ void checkasm_check_flacdsp(void);
 void checkasm_check_float_dsp(void);
 void checkasm_check_fmtconvert(void);
 void checkasm_check_g722dsp(void);
+void checkasm_check_h264chroma(void);
 void checkasm_check_h264dsp(void);
 void checkasm_check_h264pred(void);
 void checkasm_check_h264qpel(void);

tests/checkasm/h264chroma.c

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) Lynne
+ *
+ * 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 <stdint.h>
+#include "checkasm.h"
+#include "libavcodec/h264chroma.h"
+#include "libavutil/mem_internal.h"
+#include "libavutil/intreadwrite.h"
+
+#define SIZEOF_PIXEL ((bit_depth + 7) / 8)
+
+#define randomize_buffers(bit_depth)             \
+    do {                                         \
+        if (bit_depth == 8) {                    \
+            for (int i = 0; i < 16*18*2; i++)    \
+                src[i] = rnd() & 0x3;            \
+        } else {                                 \
+            for (int i = 0; i < 16*18; i += 2)   \
+                AV_WN16(&src[i], rnd() & 0xFF);  \
+        }                                        \
+    } while (0)
+
+static void check_chroma_mc(void)
+{
+    H264ChromaContext h;
+    LOCAL_ALIGNED_32(uint8_t, src,  [16 * 18 * 2]);
+    LOCAL_ALIGNED_32(uint8_t, dst0, [16 * 18 * 2]);
+    LOCAL_ALIGNED_32(uint8_t, dst1, [16 * 18 * 2]);
+
+    declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src,
+                      ptrdiff_t stride, int h, int x, int y);
+
+    for (int bit_depth = 8; bit_depth <= 10; bit_depth++) {
+        ff_h264chroma_init(&h, bit_depth);
+        randomize_buffers(bit_depth);
+        for (int size = 0; size < 4; size++) {
+
+#define CHECK_CHROMA_MC(name)                                                                         \
+            do {                                                                                      \
+                if (check_func(h.name## _pixels_tab[size], #name "_mc%d_%d", 1 << size, bit_depth)) { \
+                    for (int x = 0; x < 2; x++) {                                                     \
+                        for (int y = 0; y < 2; y++) {                                                 \
+                            memcpy(dst0, src, 16 * 18 * SIZEOF_PIXEL);                                \
+                            memcpy(dst1, src, 16 * 18 * SIZEOF_PIXEL);                                \
+                            call_ref(dst0, src, 16 * SIZEOF_PIXEL, 16, x, y);                         \
+                            call_new(dst1, src, 16 * SIZEOF_PIXEL, 16, x, y);                         \
+                            if (memcmp(dst0, dst1, 16 * 16 * SIZEOF_PIXEL)) {                         \
+                                fprintf(stderr, #name ": x:%i, y:%i\n", x, y);                        \
+                                fail();                                                               \
+                            }                                                                         \
+                            bench_new(dst1, src, 16 * SIZEOF_PIXEL, 16, x, y);                        \
+                        }                                                                             \
+                    }                                                                                 \
+                }                                                                                     \
+            } while (0)
+
+            CHECK_CHROMA_MC(put_h264_chroma);
+            CHECK_CHROMA_MC(avg_h264_chroma);
+        }
+    }
+}
+
+void checkasm_check_h264chroma(void)
+{
+    check_chroma_mc();
+    report("chroma_mc");
+}