tests/checkasm: Add vf_pp7 checkasm test

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

tests/checkasm/Makefile

@@ -76,6 +76,7 @@ AVFILTEROBJS-$(CONFIG_FSPP_FILTER)       += vf_fspp.o
 AVFILTEROBJS-$(CONFIG_GBLUR_FILTER)      += vf_gblur.o
 AVFILTEROBJS-$(CONFIG_HFLIP_FILTER)      += vf_hflip.o
 AVFILTEROBJS-$(CONFIG_IDET_FILTER)       += vf_idet.o
+AVFILTEROBJS-$(CONFIG_PP7_FILTER)        += vf_pp7.o
 AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER)  += vf_threshold.o
 AVFILTEROBJS-$(CONFIG_NLMEANS_FILTER)    += vf_nlmeans.o
 AVFILTEROBJS-$(CONFIG_SOBEL_FILTER)      += vf_convolution.o

tests/checkasm/checkasm.c

@@ -342,6 +342,9 @@ static const struct {
     #if CONFIG_NLMEANS_FILTER
         { "vf_nlmeans", checkasm_check_nlmeans },
     #endif
+    #if CONFIG_PP7_FILTER
+        { "vf_pp7", checkasm_check_vf_pp7 },
+    #endif
     #if CONFIG_THRESHOLD_FILTER
         { "vf_threshold", checkasm_check_vf_threshold },
     #endif

tests/checkasm/checkasm.h

@@ -162,6 +162,7 @@ void checkasm_check_vf_eq(void);
 void checkasm_check_vf_fspp(void);
 void checkasm_check_vf_gblur(void);
 void checkasm_check_vf_hflip(void);
+void checkasm_check_vf_pp7(void);
 void checkasm_check_vf_threshold(void);
 void checkasm_check_vf_sobel(void);
 void checkasm_check_vp3dsp(void);

tests/checkasm/vf_pp7.c

@@ -0,0 +1,66 @@
+/*
+ * 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 <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "checkasm.h"
+#include "libavfilter/vf_pp7dsp.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mem_internal.h"
+
+#define randomize_buffer(buf)                                      \
+    do {                                                           \
+        static_assert(!(sizeof(buf) % 4), "Tail handling needed"); \
+        for (size_t k = 0; k < sizeof(buf); k += 4) {              \
+            AV_WN32A((char*)buf + k, rnd());                       \
+        }                                                          \
+    } while (0)
+
+static void check_dctB(const PP7DSPContext *const pp7dsp)
+{
+    declare_func_emms(AV_CPU_FLAG_MMX, void, int16_t *dst, const int16_t *src);
+
+    if (!check_func(pp7dsp->dctB, "dctB"))
+        return;
+
+    DECLARE_ALIGNED(8, int16_t, src)[7 * 4];
+    DECLARE_ALIGNED(8, int16_t, dst_ref)[6 * 4];
+    DECLARE_ALIGNED(8, int16_t, dst_new)[6 * 4];
+
+    randomize_buffer(src);
+    randomize_buffer(dst_ref);
+    memcpy(dst_new, dst_ref, sizeof(dst_new));
+    call_ref(dst_ref, src);
+    call_new(dst_new, src);
+    if (memcmp(dst_new, dst_ref, sizeof(dst_new)))
+        fail();
+
+    bench_new(dst_new, src);
+}
+
+void checkasm_check_vf_pp7(void)
+{
+    PP7DSPContext pp7dsp;
+
+    ff_pp7dsp_init(&pp7dsp);
+
+    check_dctB(&pp7dsp);
+    report("dctB");
+}

tests/fate/checkasm.mak

@@ -83,6 +83,7 @@ FATE_CHECKASM = fate-checkasm-aacencdsp                                 \
                 fate-checkasm-vf_hflip                                  \
                 fate-checkasm-vf_idet                                   \
                 fate-checkasm-vf_nlmeans                                \
+                fate-checkasm-vf_pp7                                    \
                 fate-checkasm-vf_threshold                              \
                 fate-checkasm-vf_sobel                                  \
                 fate-checkasm-videodsp                                  \