[FFmpeg-devel] [PATCH 2/3] checkasm/svqenc: add ssd_int8_vs_int16 test

[flow gg <hlefthleft@gmail.com>]

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Tests on x86 might fail, possibly due to a 16-bit sub overflow

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From 8bde7750ec7adc2437843e14d4be85fb900d1b16 Mon Sep 17 00:00:00 2001
From: sunyuechi <sunyuechi@iscas.ac.cn>
Date: Fri, 29 Dec 2023 13:09:21 +0800
Subject: [PATCH 2/3] checkasm/svqenc: add ssd_int8_vs_int16 test

---
 tests/checkasm/Makefile   |  1 +
 tests/checkasm/checkasm.c |  3 ++
 tests/checkasm/checkasm.h |  1 +
 tests/checkasm/svq1enc.c  | 68 +++++++++++++++++++++++++++++++++++++++
 tests/fate/checkasm.mak   |  1 +
 5 files changed, 74 insertions(+)
 create mode 100644 tests/checkasm/svq1enc.c

diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile
index 47328b59b9..f507e99993 100644
--- a/tests/checkasm/Makefile
+++ b/tests/checkasm/Makefile
@@ -34,6 +34,7 @@ AVCODECOBJS-$(CONFIG_JPEG2000_DECODER)  += jpeg2000dsp.o
 AVCODECOBJS-$(CONFIG_OPUS_DECODER)      += opusdsp.o
 AVCODECOBJS-$(CONFIG_PIXBLOCKDSP)       += pixblockdsp.o
 AVCODECOBJS-$(CONFIG_HEVC_DECODER)      += hevc_add_res.o hevc_deblock.o hevc_idct.o hevc_sao.o hevc_pel.o
+AVCODECOBJS-$(CONFIG_SVQ1_ENCODER)      += svq1enc.o
 AVCODECOBJS-$(CONFIG_TAK_DECODER)       += takdsp.o
 AVCODECOBJS-$(CONFIG_UTVIDEO_DECODER)   += utvideodsp.o
 AVCODECOBJS-$(CONFIG_V210_DECODER)      += v210dec.o
diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index 57613af5f7..ff07d8b18d 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -162,6 +162,9 @@ static const struct {
     #if CONFIG_PIXBLOCKDSP
         { "pixblockdsp", checkasm_check_pixblockdsp },
     #endif
+    #if CONFIG_SVQ1_ENCODER
+        { "svq1enc", checkasm_check_svq1enc },
+    #endif
     #if CONFIG_TAK_DECODER
         { "takdsp", checkasm_check_takdsp },
     #endif
diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index d7974772d3..c1f11cfa36 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -82,6 +82,7 @@ void checkasm_check_nlmeans(void);
 void checkasm_check_opusdsp(void);
 void checkasm_check_pixblockdsp(void);
 void checkasm_check_sbrdsp(void);
+void checkasm_check_svq1enc(void);
 void checkasm_check_synth_filter(void);
 void checkasm_check_sw_gbrp(void);
 void checkasm_check_sw_rgb(void);
diff --git a/tests/checkasm/svq1enc.c b/tests/checkasm/svq1enc.c
new file mode 100644
index 0000000000..5d21abc8ad
--- /dev/null
+++ b/tests/checkasm/svq1enc.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
+ *
+ * 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 "libavutil/mem.h"
+#include "libavutil/mem_internal.h"
+
+#include "libavcodec/svq1encdsp.h"
+
+#include "checkasm.h"
+
+#define BUF_SIZE 1024
+
+#define randomize(buf, len) \
+    do { \
+        for (int i = 0; i < len; i++) \
+            buf[i] = rnd(); \
+    } while (0)
+
+static void test_ssd_int8_vs_int16(SVQ1EncDSPContext *s) {
+    declare_func(int, const int8_t *pix1, const int16_t *pix2, intptr_t size);
+
+    int r1, r2;
+
+    if (check_func(s->ssd_int8_vs_int16, "ssd_int8_vs_int16")) {
+        LOCAL_ALIGNED_32(int8_t, p1, [BUF_SIZE]);
+        LOCAL_ALIGNED_32(int16_t, p2, [BUF_SIZE]);
+
+        randomize(p1, BUF_SIZE);
+        randomize(p2, BUF_SIZE);
+
+        r1 = call_ref(p1, p2, BUF_SIZE);
+        r2 = call_new(p1, p2, BUF_SIZE);
+
+        if (r1 != r2) {
+            fail();
+        }
+
+        bench_new(p1, p2, BUF_SIZE);
+    }
+
+    report("ssd_int8_vs_int16");
+
+}
+
+void checkasm_check_svq1enc(void)
+{
+    SVQ1EncDSPContext s = { 0 };
+    ff_svq1enc_init(&s);
+
+    test_ssd_int8_vs_int16(&s);
+}
diff --git a/tests/fate/checkasm.mak b/tests/fate/checkasm.mak
index 9e04b1b3cb..3d775549ee 100644
--- a/tests/fate/checkasm.mak
+++ b/tests/fate/checkasm.mak
@@ -34,6 +34,7 @@ FATE_CHECKASM = fate-checkasm-aacencdsp                                 \
                 fate-checkasm-opusdsp                                   \
                 fate-checkasm-pixblockdsp                               \
                 fate-checkasm-sbrdsp                                    \
+                fate-checkasm-svq1enc                                   \
                 fate-checkasm-synth_filter                              \
                 fate-checkasm-sw_gbrp                                   \
                 fate-checkasm-sw_rgb                                    \
-- 
2.43.0


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