checkasm/vf_threshold : add checkasm test for threshold8

tests/checkasm/Makefile

@@ -32,6 +32,7 @@ CHECKASMOBJS-$(CONFIG_AVCODEC)          += $(AVCODECOBJS-yes)
 # libavfilter tests
 AVFILTEROBJS-$(CONFIG_BLEND_FILTER) += vf_blend.o
 AVFILTEROBJS-$(CONFIG_COLORSPACE_FILTER) += vf_colorspace.o
+AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER)  += vf_threshold.o
 
 CHECKASMOBJS-$(CONFIG_AVFILTER) += $(AVFILTEROBJS-yes)
 

tests/checkasm/checkasm.c

@@ -152,6 +152,9 @@ static const struct {
     #if CONFIG_COLORSPACE_FILTER
         { "vf_colorspace", checkasm_check_colorspace },
     #endif
+    #if CONFIG_THRESHOLD_FILTER
+        { "vf_threshold", checkasm_check_vf_threshold },
+    #endif
 #endif
 #if CONFIG_AVUTIL
         { "fixed_dsp", checkasm_check_fixed_dsp },

tests/checkasm/checkasm.h

@@ -65,6 +65,7 @@ void checkasm_check_sbrdsp(void);
 void checkasm_check_synth_filter(void);
 void checkasm_check_utvideodsp(void);
 void checkasm_check_v210enc(void);
+void checkasm_check_vf_threshold(void);
 void checkasm_check_vp8dsp(void);
 void checkasm_check_vp9dsp(void);
 void checkasm_check_videodsp(void);

tests/checkasm/vf_threshold.c

@@ -0,0 +1,79 @@
+/*
+ * 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 "libavfilter/threshold.h"
+#include "libavutil/intreadwrite.h"
+
+#define WIDTH 256
+#define WIDTH_PADDED 256 + 32
+
+#define randomize_buffers(buf, size)     \
+    do {                                 \
+       int j;                            \
+       uint8_t *tmp_buf = (uint8_t *)buf;\
+       for (j = 0; j < size; j++)        \
+           tmp_buf[j] = rnd() & 0xFF;    \
+    } while (0)
+
+static void check_threshold_8(void){
+    LOCAL_ALIGNED_32(uint8_t, in       , [WIDTH_PADDED]);
+    LOCAL_ALIGNED_32(uint8_t, threshold, [WIDTH_PADDED]);
+    LOCAL_ALIGNED_32(uint8_t, min      , [WIDTH_PADDED]);
+    LOCAL_ALIGNED_32(uint8_t, max      , [WIDTH_PADDED]);
+    LOCAL_ALIGNED_32(uint8_t, out_ref  , [WIDTH_PADDED]);
+    LOCAL_ALIGNED_32(uint8_t, out_new  , [WIDTH_PADDED]);
+    ptrdiff_t line_size = WIDTH_PADDED;
+    int w = WIDTH;
+
+    ThresholdContext s;
+    s.depth = 8;
+    ff_threshold_init(&s);
+
+    declare_func(void, const uint8_t *in, const uint8_t *threshold,
+                 const uint8_t *min, const uint8_t *max, uint8_t *out,
+                 ptrdiff_t ilinesize, ptrdiff_t tlinesize,
+                 ptrdiff_t flinesize, ptrdiff_t slinesize,
+                 ptrdiff_t olinesize, int w, int h);
+
+    memset(in,     0, WIDTH_PADDED);
+    memset(threshold, 0, WIDTH_PADDED);
+    memset(min, 0, WIDTH_PADDED);
+    memset(max, 0, WIDTH_PADDED);
+    memset(out_ref, 0, WIDTH_PADDED);
+    memset(out_new, 0, WIDTH_PADDED);
+    randomize_buffers(in, WIDTH);
+    randomize_buffers(threshold, WIDTH);
+    randomize_buffers(min, WIDTH);
+    randomize_buffers(max, WIDTH);
+
+    if (check_func(s.threshold, "threshold8")) {
+        call_ref(in, threshold, min, max, out_ref, line_size, line_size, line_size, line_size, line_size, w, 1);
+        call_new(in, threshold, min, max, out_new, line_size, line_size, line_size, line_size, line_size, w, 1);
+        if (memcmp(out_ref, out_new, w))
+            fail();
+        bench_new(in, threshold, min, max, out_new, line_size, line_size, line_size, line_size, line_size, w, 1);
+    }
+}
+
+void checkasm_check_vf_threshold(void)
+{
+    check_threshold_8();
+    report("threshold8");
+}