checkasm: Add a test for HEVC add_residual

tests/checkasm/Makefile

@@ -12,7 +12,7 @@ AVCODECOBJS-$(CONFIG_VP8DSP)            += vp8dsp.o
 
 # decoders/encoders
 AVCODECOBJS-$(CONFIG_DCA_DECODER)       += dcadsp.o synth_filter.o
-AVCODECOBJS-$(CONFIG_HEVC_DECODER)      += hevc_mc.o hevc_idct.o
+AVCODECOBJS-$(CONFIG_HEVC_DECODER)      += hevc_add_res.o hevc_idct.o hevc_mc.o
 AVCODECOBJS-$(CONFIG_V210_ENCODER)      += v210enc.o
 AVCODECOBJS-$(CONFIG_VP9_DECODER)       += vp9dsp.o
 

tests/checkasm/checkasm.c

@@ -90,8 +90,9 @@ static const struct {
     { "h264qpel", checkasm_check_h264qpel },
 #endif
 #if CONFIG_HEVC_DECODER
-    { "hevc_mc", checkasm_check_hevc_mc },
+    { "hevc_add_res", checkasm_check_hevc_add_res },
     { "hevc_idct", checkasm_check_hevc_idct },
+    { "hevc_mc", checkasm_check_hevc_mc },
 #endif
 #if CONFIG_HUFFYUVDSP
     { "huffyuvdsp", checkasm_check_huffyuvdsp },

tests/checkasm/checkasm.h

@@ -39,6 +39,7 @@ void checkasm_check_fmtconvert(void);
 void checkasm_check_h264dsp(void);
 void checkasm_check_h264pred(void);
 void checkasm_check_h264qpel(void);
+void checkasm_check_hevc_add_res(void);
 void checkasm_check_hevc_idct(void);
 void checkasm_check_hevc_mc(void);
 void checkasm_check_huffyuvdsp(void);

tests/checkasm/hevc_add_res.c

+/*
+ * Copyright (c) 2016 Alexandra Hájková
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <string.h>
+
+#include "libavutil/intreadwrite.h"
+
+#include "libavcodec/hevcdsp.h"
+
+#include "checkasm.h"
+
+#define randomize_buffers(buf, size)            \
+    do {                                        \
+        int j;                                  \
+        for (j = 0; j < size; j++) {            \
+            int16_t r = rnd();                  \
+            AV_WN16A(buf + j, r >> 3);          \
+        }                                       \
+    } while (0)
+
+#define randomize_buffers2(buf, size)             \
+    do {                                          \
+        int j;                                    \
+        for (j = 0; j < size; j++)                \
+            AV_WN16A(buf + j * 2, rnd() & 0x3FF); \
+    } while (0)
+
+static void check_add_res(HEVCDSPContext h, int bit_depth)
+{
+    int i;
+    LOCAL_ALIGNED(32, int16_t, res0, [32 * 32]);
+    LOCAL_ALIGNED(32, int16_t, res1, [32 * 32]);
+    LOCAL_ALIGNED(32, uint8_t, dst0, [32 * 32 * 2]);
+    LOCAL_ALIGNED(32, uint8_t, dst1, [32 * 32 * 2]);
+
+    for (i = 2; i <= 5; i++) {
+        int block_size = 1 << i;
+        int size = block_size * block_size;
+        ptrdiff_t stride = block_size << (bit_depth > 8);
+        declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+        randomize_buffers(res0, size);
+        randomize_buffers2(dst0, size);
+        memcpy(res1, res0, sizeof(*res0) * size);
+        memcpy(dst1, dst0, size);
+
+        if (check_func(h.add_residual[i - 2], "add_res_%dx%d_%d", block_size, block_size, bit_depth)) {
+            call_ref(dst0, res0, stride);
+            call_new(dst1, res1, stride);
+            if (memcmp(dst0, dst1, size))
+                fail();
+            bench_new(dst1, res1, stride);
+        }
+    }
+}
+
+void checkasm_check_hevc_add_res(void)
+{
+    int bit_depth;
+
+    for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
+        HEVCDSPContext h;
+
+        ff_hevc_dsp_init(&h, bit_depth);
+        check_add_res(h, bit_depth);
+    }
+    report("add_residual");
+}