checkasm/swscale : add test for rgb shuffle_bytes func

tests/checkasm/Makefile

@@ -38,6 +38,12 @@ AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER)  += vf_threshold.o
 
 CHECKASMOBJS-$(CONFIG_AVFILTER) += $(AVFILTEROBJS-yes)
 
+# swscale tests
+SWSCALEOBJS                             += sw_rgb.o
+
+CHECKASMOBJS-$(CONFIG_SWSCALE)  += $(SWSCALEOBJS)
+
+# libavutil tests
 AVUTILOBJS                              += fixed_dsp.o
 AVUTILOBJS                              += float_dsp.o
 

tests/checkasm/checkasm.c

@@ -163,6 +163,9 @@ static const struct {
         { "vf_threshold", checkasm_check_vf_threshold },
     #endif
 #endif
+#if CONFIG_SWSCALE
+    { "sw_rgb", checkasm_check_sw_rgb },
+#endif
 #if CONFIG_AVUTIL
         { "fixed_dsp", checkasm_check_fixed_dsp },
         { "float_dsp", checkasm_check_float_dsp },

tests/checkasm/checkasm.h

@@ -65,6 +65,7 @@ void checkasm_check_llviddspenc(void);
 void checkasm_check_pixblockdsp(void);
 void checkasm_check_sbrdsp(void);
 void checkasm_check_synth_filter(void);
+void checkasm_check_sw_rgb(void);
 void checkasm_check_utvideodsp(void);
 void checkasm_check_v210enc(void);
 void checkasm_check_vf_hflip(void);

tests/checkasm/sw_rgb.c

@@ -0,0 +1,85 @@
+/*
+ *
+ * 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 "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mem.h"
+
+#include "libswscale/rgb2rgb.h"
+
+#include "checkasm.h"
+
+#define randomize_buffers(buf, size)      \
+    do {                                  \
+        int j;                            \
+        for (j = 0; j < size; j+=4)       \
+            AV_WN32(buf + j, rnd());      \
+    } while (0)
+
+static const uint8_t width[] = {12, 16, 20, 32, 36, 128};
+
+#define MAX_STRIDE 128
+
+static void check_shuffle_bytes(void * func, const char * report)
+{
+    int i;
+    LOCAL_ALIGNED_32(uint8_t, src0, [MAX_STRIDE]);
+    LOCAL_ALIGNED_32(uint8_t, src1, [MAX_STRIDE]);
+    LOCAL_ALIGNED_32(uint8_t, dst0, [MAX_STRIDE]);
+    LOCAL_ALIGNED_32(uint8_t, dst1, [MAX_STRIDE]);
+
+    declare_func_emms(AV_CPU_FLAG_MMX, void, const uint8_t *src, uint8_t *dst, int src_size);
+
+    memset(dst0, 0, MAX_STRIDE);
+    memset(dst1, 0, MAX_STRIDE);
+    randomize_buffers(src0, MAX_STRIDE);
+    memcpy(src1, src0, MAX_STRIDE);
+
+    if (check_func(func, "%s", report)) {
+        for (i = 0; i < 6; i ++) {
+            call_ref(src0, dst0, width[i]);
+            call_new(src1, dst1, width[i]);
+            if (memcmp(dst0, dst1, MAX_STRIDE))
+                fail();
+        }
+        bench_new(src0, dst0, width[5]);
+    }
+}
+
+void checkasm_check_sw_rgb(void)
+{
+    ff_sws_rgb2rgb_init();
+
+    check_shuffle_bytes(shuffle_bytes_2103, "shuffle_bytes_2103");
+    report("shuffle_bytes_2103");
+
+    check_shuffle_bytes(shuffle_bytes_0321, "shuffle_bytes_0321");
+    report("shuffle_bytes_0321");
+
+    check_shuffle_bytes(shuffle_bytes_1230, "shuffle_bytes_1230");
+    report("shuffle_bytes_1230");
+
+    check_shuffle_bytes(shuffle_bytes_3012, "shuffle_bytes_3012");
+    report("shuffle_bytes_3012");
+
+    check_shuffle_bytes(shuffle_bytes_3210, "shuffle_bytes_3210");
+    report("shuffle_bytes_3210");
+}

tests/fate/checkasm.mak

@@ -21,6 +21,7 @@ FATE_CHECKASM = fate-checkasm-aacpsdsp                                  \
                 fate-checkasm-pixblockdsp                               \
                 fate-checkasm-sbrdsp                                    \
                 fate-checkasm-synth_filter                              \
+                fate-checkasm-sw_rgb                                    \
                 fate-checkasm-v210enc                                   \
                 fate-checkasm-vf_blend                                  \
                 fate-checkasm-vf_colorspace                             \