checkasm: add h263dsp.{h,v}_loop_filter

tests/checkasm/Makefile

@@ -7,6 +7,7 @@ AVCODECOBJS-$(CONFIG_BSWAPDSP)          += bswapdsp.o
 AVCODECOBJS-$(CONFIG_FDCTDSP)           += fdctdsp.o
 AVCODECOBJS-$(CONFIG_FMTCONVERT)        += fmtconvert.o
 AVCODECOBJS-$(CONFIG_G722DSP)           += g722dsp.o
+AVCODECOBJS-$(CONFIG_H263DSP)           += h263dsp.o
 AVCODECOBJS-$(CONFIG_H264CHROMA)        += h264chroma.o
 AVCODECOBJS-$(CONFIG_H264DSP)           += h264dsp.o
 AVCODECOBJS-$(CONFIG_H264PRED)          += h264pred.o

tests/checkasm/checkasm.c

@@ -121,6 +121,9 @@ static const struct {
     #if CONFIG_G722DSP
         { "g722dsp", checkasm_check_g722dsp },
     #endif
+    #if CONFIG_H263DSP
+        { "h263dsp", checkasm_check_h263dsp },
+    #endif
     #if CONFIG_H264CHROMA
         { "h264chroma", checkasm_check_h264chroma },
     #endif

tests/checkasm/checkasm.h

@@ -91,6 +91,7 @@ void checkasm_check_flacdsp(void);
 void checkasm_check_float_dsp(void);
 void checkasm_check_fmtconvert(void);
 void checkasm_check_g722dsp(void);
+void checkasm_check_h263dsp(void);
 void checkasm_check_h264chroma(void);
 void checkasm_check_h264dsp(void);
 void checkasm_check_h264pred(void);

tests/checkasm/h263dsp.c

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2024 Rémi Denis-Courmont
+ *
+ * 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/h263dsp.h"
+#include "libavutil/mem.h"
+#include "libavutil/mem_internal.h"
+
+typedef void (*filter)(uint8_t *src, int stride, int qscale);
+
+static void check_loop_filter(char dim, filter func)
+{
+    LOCAL_ALIGNED_16(uint8_t, buf0, [32 * 32]);
+    LOCAL_ALIGNED_16(uint8_t, buf1, [32 * 32]);
+    int qscale = rnd() % 32;
+
+    declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *, int, int);
+
+    for (size_t y = 0; y < 32; y++)
+        for (size_t x = 0; x < 32; x++)
+            buf0[y * 32 + x] = buf1[y * 32 + x] = rnd();
+
+    if (check_func(func, "h263dsp.%c_loop_filter", dim)) {
+        call_ref(buf0 + 8 * 33, 32, qscale);
+        call_new(buf1 + 8 * 33, 32, qscale);
+
+        if (memcmp(buf0, buf1, 32 * 32))
+            fail();
+
+        bench_new(buf1 + 8 * 33, 32, 1);
+    }
+}
+
+void checkasm_check_h263dsp(void)
+{
+    H263DSPContext ctx;
+
+    ff_h263dsp_init(&ctx);
+    check_loop_filter('h', ctx.h263_h_loop_filter);
+    check_loop_filter('v', ctx.h263_v_loop_filter);
+    report("loop_filter");
+}

tests/fate/checkasm.mak

@@ -14,6 +14,7 @@ FATE_CHECKASM = fate-checkasm-aacencdsp                                 \
                 fate-checkasm-float_dsp                                 \
                 fate-checkasm-fmtconvert                                \
                 fate-checkasm-g722dsp                                   \
+                fate-checkasm-h263dsp                                   \
                 fate-checkasm-h264chroma                                \
                 fate-checkasm-h264dsp                                   \
                 fate-checkasm-h264pred                                  \