tests: Add libpostproc blocktest

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libpostproc/Makefile

@@ -11,3 +11,5 @@ OBJS = postprocess.o           \
 
 # Windows resource file
 SHLIBOBJS-$(HAVE_GNU_WINDRES) += postprocres.o
+
+TESTPROGS = blocktest

libpostproc/tests/blocktest.c

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2025 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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/frame.h"
+#include "libavutil/adler32.h"
+#include "libpostproc/postprocess.h"
+
+typedef const uint8_t *cuint8;
+
+static void blocks(AVFrame *frame, int blocksize, int mul)
+{
+    for(int y=0; y<frame->height; y++) {
+        for(int x=0; x<frame->width; x++) {
+            frame->data[0][x + y*frame->linesize[0]] = x/blocksize*mul + y/blocksize*mul;
+        }
+    }
+    for(int y=0; y<(frame->height+1)/2; y++) {
+        for(int x=0; x<(frame->width+1)/2; x++) {
+            frame->data[1][x + y*frame->linesize[1]] = x/blocksize*mul + y/blocksize*mul;
+            frame->data[2][x + y*frame->linesize[2]] = x/blocksize * (y/blocksize)*mul;
+        }
+    }
+}
+
+static int64_t chksum(AVFrame *f)
+{
+    AVAdler a = 123;
+
+    for(int y=0; y<f->height; y++) {
+        a = av_adler32_update(a, &f->data[0][y*f->linesize[0]], f->width);
+    }
+    for(int y=0; y<(f->height+1)/2; y++) {
+        a = av_adler32_update(a, &f->data[1][y*f->linesize[1]], (f->width+1)/2);
+        a = av_adler32_update(a, &f->data[2][y*f->linesize[2]], (f->width+1)/2);
+    }
+
+    return a;
+}
+
+static int64_t test(int width, int height, int blocksize, int flags, int pict_type, int quality) {
+    AVFrame *in  = av_frame_alloc();
+    AVFrame *out = av_frame_alloc();
+    pp_context *context = pp_get_context(width, height, flags);
+    pp_mode *mode = pp_get_mode_by_name_and_quality("be,de", quality);
+    int64_t ret;
+
+    if (!in || !out || !context || !mode) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    in-> width = out->width  = width;
+    in->height = out->height = height;
+    in->format = out->format = AV_PIX_FMT_YUV420P;
+
+    ret = av_frame_get_buffer(in, 0);
+    if (ret < 0)
+        goto end;
+
+    ret = av_frame_get_buffer(out, 0);
+    if (ret < 0)
+        goto end;
+
+    blocks(in, blocksize, 11);
+
+    pp_postprocess( (cuint8[]){in->data[0], in->data[1], in->data[2]}, in->linesize,
+                   out->data, out->linesize,
+                   width, height, NULL, 0,
+                   mode, context, pict_type);
+
+    ret = chksum(out);
+end:
+    av_frame_free(&in);
+    av_frame_free(&out);
+    pp_free_context(context);
+    pp_free_mode(mode);
+
+    return ret;
+}
+
+int main(int argc, char **argv) {
+
+    for (int w=8; w< 352; w=w*3-1) {
+        for (int h=8; h< 352; h=h*5-7) {
+            for (int b=1; b<17; b*=2) {
+                for (int q=0; q<17; q = 2*q+1) {
+                    int64_t ret = test(352, 288, b, PP_FORMAT_420, 0, q);
+                    printf("blocktest %dx%d b:%d q:%d result %"PRIX64"\n", w, h, b, q, ret);
+                }
+            }
+        }
+    }
+
+    return 0;
+}

tests/Makefile

@@ -207,6 +207,7 @@ include $(SRC_PATH)/tests/fate/libavformat.mak
 include $(SRC_PATH)/tests/fate/libavutil.mak
 include $(SRC_PATH)/tests/fate/libswresample.mak
 include $(SRC_PATH)/tests/fate/libswscale.mak
+include $(SRC_PATH)/tests/fate/libpostproc.mak
 include $(SRC_PATH)/tests/fate/lossless-audio.mak
 include $(SRC_PATH)/tests/fate/lossless-video.mak
 include $(SRC_PATH)/tests/fate/matroska.mak

tests/fate/libpostproc.mak

@@ -0,0 +1,6 @@
+FATE_LIBPOSTPROC += fate-blocktest
+fate-blocktest: libpostproc/tests/blocktest$(EXESUF)
+fate-blocktest: CMD = run libpostproc/tests/blocktest$(EXESUF)
+
+FATE-$(CONFIG_POSTPROC) += $(FATE_LIBPOSTPROC)
+fate-libpostproc: $(FATE_LIBPOSTPROC)

tests/ref/fate/blocktest

@@ -0,0 +1,300 @@
+blocktest 8x8 b:1 q:0 result 2C2DD9F5
+blocktest 8x8 b:1 q:1 result 2C2DD9F5
+blocktest 8x8 b:1 q:3 result 2C2DD9F5
+blocktest 8x8 b:1 q:7 result 802FD88A
+blocktest 8x8 b:1 q:15 result 802FD88A
+blocktest 8x8 b:2 q:0 result D3A760F5
+blocktest 8x8 b:2 q:1 result D3A760F5
+blocktest 8x8 b:2 q:3 result D3A760F5
+blocktest 8x8 b:2 q:7 result A7BC55BB
+blocktest 8x8 b:2 q:15 result A7BC55BB
+blocktest 8x8 b:4 q:0 result 908DDCF5
+blocktest 8x8 b:4 q:1 result 908DDCF5
+blocktest 8x8 b:4 q:3 result 908DDCF5
+blocktest 8x8 b:4 q:7 result 36D7B48B
+blocktest 8x8 b:4 q:15 result 36D7B48B
+blocktest 8x8 b:8 q:0 result FC8129D7
+blocktest 8x8 b:8 q:1 result FC8129D7
+blocktest 8x8 b:8 q:3 result FC8129D7
+blocktest 8x8 b:8 q:7 result FC8129D7
+blocktest 8x8 b:8 q:15 result FC8129D7
+blocktest 8x8 b:16 q:0 result EC1AB989
+blocktest 8x8 b:16 q:1 result EC1AB989
+blocktest 8x8 b:16 q:3 result EC1AB989
+blocktest 8x8 b:16 q:7 result EC1AB989
+blocktest 8x8 b:16 q:15 result EC1AB989
+blocktest 8x33 b:1 q:0 result 2C2DD9F5
+blocktest 8x33 b:1 q:1 result 2C2DD9F5
+blocktest 8x33 b:1 q:3 result 2C2DD9F5
+blocktest 8x33 b:1 q:7 result 802FD88A
+blocktest 8x33 b:1 q:15 result 802FD88A
+blocktest 8x33 b:2 q:0 result D3A760F5
+blocktest 8x33 b:2 q:1 result D3A760F5
+blocktest 8x33 b:2 q:3 result D3A760F5
+blocktest 8x33 b:2 q:7 result A7BC55BB
+blocktest 8x33 b:2 q:15 result A7BC55BB
+blocktest 8x33 b:4 q:0 result 908DDCF5
+blocktest 8x33 b:4 q:1 result 908DDCF5
+blocktest 8x33 b:4 q:3 result 908DDCF5
+blocktest 8x33 b:4 q:7 result 36D7B48B
+blocktest 8x33 b:4 q:15 result 36D7B48B
+blocktest 8x33 b:8 q:0 result FC8129D7
+blocktest 8x33 b:8 q:1 result FC8129D7
+blocktest 8x33 b:8 q:3 result FC8129D7
+blocktest 8x33 b:8 q:7 result FC8129D7
+blocktest 8x33 b:8 q:15 result FC8129D7
+blocktest 8x33 b:16 q:0 result EC1AB989
+blocktest 8x33 b:16 q:1 result EC1AB989
+blocktest 8x33 b:16 q:3 result EC1AB989
+blocktest 8x33 b:16 q:7 result EC1AB989
+blocktest 8x33 b:16 q:15 result EC1AB989
+blocktest 8x158 b:1 q:0 result 2C2DD9F5
+blocktest 8x158 b:1 q:1 result 2C2DD9F5
+blocktest 8x158 b:1 q:3 result 2C2DD9F5
+blocktest 8x158 b:1 q:7 result 802FD88A
+blocktest 8x158 b:1 q:15 result 802FD88A
+blocktest 8x158 b:2 q:0 result D3A760F5
+blocktest 8x158 b:2 q:1 result D3A760F5
+blocktest 8x158 b:2 q:3 result D3A760F5
+blocktest 8x158 b:2 q:7 result A7BC55BB
+blocktest 8x158 b:2 q:15 result A7BC55BB
+blocktest 8x158 b:4 q:0 result 908DDCF5
+blocktest 8x158 b:4 q:1 result 908DDCF5
+blocktest 8x158 b:4 q:3 result 908DDCF5
+blocktest 8x158 b:4 q:7 result 36D7B48B
+blocktest 8x158 b:4 q:15 result 36D7B48B
+blocktest 8x158 b:8 q:0 result FC8129D7
+blocktest 8x158 b:8 q:1 result FC8129D7
+blocktest 8x158 b:8 q:3 result FC8129D7
+blocktest 8x158 b:8 q:7 result FC8129D7
+blocktest 8x158 b:8 q:15 result FC8129D7
+blocktest 8x158 b:16 q:0 result EC1AB989
+blocktest 8x158 b:16 q:1 result EC1AB989
+blocktest 8x158 b:16 q:3 result EC1AB989
+blocktest 8x158 b:16 q:7 result EC1AB989
+blocktest 8x158 b:16 q:15 result EC1AB989
+blocktest 23x8 b:1 q:0 result 2C2DD9F5
+blocktest 23x8 b:1 q:1 result 2C2DD9F5
+blocktest 23x8 b:1 q:3 result 2C2DD9F5
+blocktest 23x8 b:1 q:7 result 802FD88A
+blocktest 23x8 b:1 q:15 result 802FD88A
+blocktest 23x8 b:2 q:0 result D3A760F5
+blocktest 23x8 b:2 q:1 result D3A760F5
+blocktest 23x8 b:2 q:3 result D3A760F5
+blocktest 23x8 b:2 q:7 result A7BC55BB
+blocktest 23x8 b:2 q:15 result A7BC55BB
+blocktest 23x8 b:4 q:0 result 908DDCF5
+blocktest 23x8 b:4 q:1 result 908DDCF5
+blocktest 23x8 b:4 q:3 result 908DDCF5
+blocktest 23x8 b:4 q:7 result 36D7B48B
+blocktest 23x8 b:4 q:15 result 36D7B48B
+blocktest 23x8 b:8 q:0 result FC8129D7
+blocktest 23x8 b:8 q:1 result FC8129D7
+blocktest 23x8 b:8 q:3 result FC8129D7
+blocktest 23x8 b:8 q:7 result FC8129D7
+blocktest 23x8 b:8 q:15 result FC8129D7
+blocktest 23x8 b:16 q:0 result EC1AB989
+blocktest 23x8 b:16 q:1 result EC1AB989
+blocktest 23x8 b:16 q:3 result EC1AB989
+blocktest 23x8 b:16 q:7 result EC1AB989
+blocktest 23x8 b:16 q:15 result EC1AB989
+blocktest 23x33 b:1 q:0 result 2C2DD9F5
+blocktest 23x33 b:1 q:1 result 2C2DD9F5
+blocktest 23x33 b:1 q:3 result 2C2DD9F5
+blocktest 23x33 b:1 q:7 result 802FD88A
+blocktest 23x33 b:1 q:15 result 802FD88A
+blocktest 23x33 b:2 q:0 result D3A760F5
+blocktest 23x33 b:2 q:1 result D3A760F5
+blocktest 23x33 b:2 q:3 result D3A760F5
+blocktest 23x33 b:2 q:7 result A7BC55BB
+blocktest 23x33 b:2 q:15 result A7BC55BB
+blocktest 23x33 b:4 q:0 result 908DDCF5
+blocktest 23x33 b:4 q:1 result 908DDCF5
+blocktest 23x33 b:4 q:3 result 908DDCF5
+blocktest 23x33 b:4 q:7 result 36D7B48B
+blocktest 23x33 b:4 q:15 result 36D7B48B
+blocktest 23x33 b:8 q:0 result FC8129D7
+blocktest 23x33 b:8 q:1 result FC8129D7
+blocktest 23x33 b:8 q:3 result FC8129D7
+blocktest 23x33 b:8 q:7 result FC8129D7
+blocktest 23x33 b:8 q:15 result FC8129D7
+blocktest 23x33 b:16 q:0 result EC1AB989
+blocktest 23x33 b:16 q:1 result EC1AB989
+blocktest 23x33 b:16 q:3 result EC1AB989
+blocktest 23x33 b:16 q:7 result EC1AB989
+blocktest 23x33 b:16 q:15 result EC1AB989
+blocktest 23x158 b:1 q:0 result 2C2DD9F5
+blocktest 23x158 b:1 q:1 result 2C2DD9F5
+blocktest 23x158 b:1 q:3 result 2C2DD9F5
+blocktest 23x158 b:1 q:7 result 802FD88A
+blocktest 23x158 b:1 q:15 result 802FD88A
+blocktest 23x158 b:2 q:0 result D3A760F5
+blocktest 23x158 b:2 q:1 result D3A760F5
+blocktest 23x158 b:2 q:3 result D3A760F5
+blocktest 23x158 b:2 q:7 result A7BC55BB
+blocktest 23x158 b:2 q:15 result A7BC55BB
+blocktest 23x158 b:4 q:0 result 908DDCF5
+blocktest 23x158 b:4 q:1 result 908DDCF5
+blocktest 23x158 b:4 q:3 result 908DDCF5
+blocktest 23x158 b:4 q:7 result 36D7B48B
+blocktest 23x158 b:4 q:15 result 36D7B48B
+blocktest 23x158 b:8 q:0 result FC8129D7
+blocktest 23x158 b:8 q:1 result FC8129D7
+blocktest 23x158 b:8 q:3 result FC8129D7
+blocktest 23x158 b:8 q:7 result FC8129D7
+blocktest 23x158 b:8 q:15 result FC8129D7
+blocktest 23x158 b:16 q:0 result EC1AB989
+blocktest 23x158 b:16 q:1 result EC1AB989
+blocktest 23x158 b:16 q:3 result EC1AB989
+blocktest 23x158 b:16 q:7 result EC1AB989
+blocktest 23x158 b:16 q:15 result EC1AB989
+blocktest 68x8 b:1 q:0 result 2C2DD9F5
+blocktest 68x8 b:1 q:1 result 2C2DD9F5
+blocktest 68x8 b:1 q:3 result 2C2DD9F5
+blocktest 68x8 b:1 q:7 result 802FD88A
+blocktest 68x8 b:1 q:15 result 802FD88A
+blocktest 68x8 b:2 q:0 result D3A760F5
+blocktest 68x8 b:2 q:1 result D3A760F5
+blocktest 68x8 b:2 q:3 result D3A760F5
+blocktest 68x8 b:2 q:7 result A7BC55BB
+blocktest 68x8 b:2 q:15 result A7BC55BB
+blocktest 68x8 b:4 q:0 result 908DDCF5
+blocktest 68x8 b:4 q:1 result 908DDCF5
+blocktest 68x8 b:4 q:3 result 908DDCF5
+blocktest 68x8 b:4 q:7 result 36D7B48B
+blocktest 68x8 b:4 q:15 result 36D7B48B
+blocktest 68x8 b:8 q:0 result FC8129D7
+blocktest 68x8 b:8 q:1 result FC8129D7
+blocktest 68x8 b:8 q:3 result FC8129D7
+blocktest 68x8 b:8 q:7 result FC8129D7
+blocktest 68x8 b:8 q:15 result FC8129D7
+blocktest 68x8 b:16 q:0 result EC1AB989
+blocktest 68x8 b:16 q:1 result EC1AB989
+blocktest 68x8 b:16 q:3 result EC1AB989
+blocktest 68x8 b:16 q:7 result EC1AB989
+blocktest 68x8 b:16 q:15 result EC1AB989
+blocktest 68x33 b:1 q:0 result 2C2DD9F5
+blocktest 68x33 b:1 q:1 result 2C2DD9F5
+blocktest 68x33 b:1 q:3 result 2C2DD9F5
+blocktest 68x33 b:1 q:7 result 802FD88A
+blocktest 68x33 b:1 q:15 result 802FD88A
+blocktest 68x33 b:2 q:0 result D3A760F5
+blocktest 68x33 b:2 q:1 result D3A760F5
+blocktest 68x33 b:2 q:3 result D3A760F5
+blocktest 68x33 b:2 q:7 result A7BC55BB
+blocktest 68x33 b:2 q:15 result A7BC55BB
+blocktest 68x33 b:4 q:0 result 908DDCF5
+blocktest 68x33 b:4 q:1 result 908DDCF5
+blocktest 68x33 b:4 q:3 result 908DDCF5
+blocktest 68x33 b:4 q:7 result 36D7B48B
+blocktest 68x33 b:4 q:15 result 36D7B48B
+blocktest 68x33 b:8 q:0 result FC8129D7
+blocktest 68x33 b:8 q:1 result FC8129D7
+blocktest 68x33 b:8 q:3 result FC8129D7
+blocktest 68x33 b:8 q:7 result FC8129D7
+blocktest 68x33 b:8 q:15 result FC8129D7
+blocktest 68x33 b:16 q:0 result EC1AB989
+blocktest 68x33 b:16 q:1 result EC1AB989
+blocktest 68x33 b:16 q:3 result EC1AB989
+blocktest 68x33 b:16 q:7 result EC1AB989
+blocktest 68x33 b:16 q:15 result EC1AB989
+blocktest 68x158 b:1 q:0 result 2C2DD9F5
+blocktest 68x158 b:1 q:1 result 2C2DD9F5
+blocktest 68x158 b:1 q:3 result 2C2DD9F5
+blocktest 68x158 b:1 q:7 result 802FD88A
+blocktest 68x158 b:1 q:15 result 802FD88A
+blocktest 68x158 b:2 q:0 result D3A760F5
+blocktest 68x158 b:2 q:1 result D3A760F5
+blocktest 68x158 b:2 q:3 result D3A760F5
+blocktest 68x158 b:2 q:7 result A7BC55BB
+blocktest 68x158 b:2 q:15 result A7BC55BB
+blocktest 68x158 b:4 q:0 result 908DDCF5
+blocktest 68x158 b:4 q:1 result 908DDCF5
+blocktest 68x158 b:4 q:3 result 908DDCF5
+blocktest 68x158 b:4 q:7 result 36D7B48B
+blocktest 68x158 b:4 q:15 result 36D7B48B
+blocktest 68x158 b:8 q:0 result FC8129D7
+blocktest 68x158 b:8 q:1 result FC8129D7
+blocktest 68x158 b:8 q:3 result FC8129D7
+blocktest 68x158 b:8 q:7 result FC8129D7
+blocktest 68x158 b:8 q:15 result FC8129D7
+blocktest 68x158 b:16 q:0 result EC1AB989
+blocktest 68x158 b:16 q:1 result EC1AB989
+blocktest 68x158 b:16 q:3 result EC1AB989
+blocktest 68x158 b:16 q:7 result EC1AB989
+blocktest 68x158 b:16 q:15 result EC1AB989
+blocktest 203x8 b:1 q:0 result 2C2DD9F5
+blocktest 203x8 b:1 q:1 result 2C2DD9F5
+blocktest 203x8 b:1 q:3 result 2C2DD9F5
+blocktest 203x8 b:1 q:7 result 802FD88A
+blocktest 203x8 b:1 q:15 result 802FD88A
+blocktest 203x8 b:2 q:0 result D3A760F5
+blocktest 203x8 b:2 q:1 result D3A760F5
+blocktest 203x8 b:2 q:3 result D3A760F5
+blocktest 203x8 b:2 q:7 result A7BC55BB
+blocktest 203x8 b:2 q:15 result A7BC55BB
+blocktest 203x8 b:4 q:0 result 908DDCF5
+blocktest 203x8 b:4 q:1 result 908DDCF5
+blocktest 203x8 b:4 q:3 result 908DDCF5
+blocktest 203x8 b:4 q:7 result 36D7B48B
+blocktest 203x8 b:4 q:15 result 36D7B48B
+blocktest 203x8 b:8 q:0 result FC8129D7
+blocktest 203x8 b:8 q:1 result FC8129D7
+blocktest 203x8 b:8 q:3 result FC8129D7
+blocktest 203x8 b:8 q:7 result FC8129D7
+blocktest 203x8 b:8 q:15 result FC8129D7
+blocktest 203x8 b:16 q:0 result EC1AB989
+blocktest 203x8 b:16 q:1 result EC1AB989
+blocktest 203x8 b:16 q:3 result EC1AB989
+blocktest 203x8 b:16 q:7 result EC1AB989
+blocktest 203x8 b:16 q:15 result EC1AB989
+blocktest 203x33 b:1 q:0 result 2C2DD9F5
+blocktest 203x33 b:1 q:1 result 2C2DD9F5
+blocktest 203x33 b:1 q:3 result 2C2DD9F5
+blocktest 203x33 b:1 q:7 result 802FD88A
+blocktest 203x33 b:1 q:15 result 802FD88A
+blocktest 203x33 b:2 q:0 result D3A760F5
+blocktest 203x33 b:2 q:1 result D3A760F5
+blocktest 203x33 b:2 q:3 result D3A760F5
+blocktest 203x33 b:2 q:7 result A7BC55BB
+blocktest 203x33 b:2 q:15 result A7BC55BB
+blocktest 203x33 b:4 q:0 result 908DDCF5
+blocktest 203x33 b:4 q:1 result 908DDCF5
+blocktest 203x33 b:4 q:3 result 908DDCF5
+blocktest 203x33 b:4 q:7 result 36D7B48B
+blocktest 203x33 b:4 q:15 result 36D7B48B
+blocktest 203x33 b:8 q:0 result FC8129D7
+blocktest 203x33 b:8 q:1 result FC8129D7
+blocktest 203x33 b:8 q:3 result FC8129D7
+blocktest 203x33 b:8 q:7 result FC8129D7
+blocktest 203x33 b:8 q:15 result FC8129D7
+blocktest 203x33 b:16 q:0 result EC1AB989
+blocktest 203x33 b:16 q:1 result EC1AB989
+blocktest 203x33 b:16 q:3 result EC1AB989
+blocktest 203x33 b:16 q:7 result EC1AB989
+blocktest 203x33 b:16 q:15 result EC1AB989
+blocktest 203x158 b:1 q:0 result 2C2DD9F5
+blocktest 203x158 b:1 q:1 result 2C2DD9F5
+blocktest 203x158 b:1 q:3 result 2C2DD9F5
+blocktest 203x158 b:1 q:7 result 802FD88A
+blocktest 203x158 b:1 q:15 result 802FD88A
+blocktest 203x158 b:2 q:0 result D3A760F5
+blocktest 203x158 b:2 q:1 result D3A760F5
+blocktest 203x158 b:2 q:3 result D3A760F5
+blocktest 203x158 b:2 q:7 result A7BC55BB
+blocktest 203x158 b:2 q:15 result A7BC55BB
+blocktest 203x158 b:4 q:0 result 908DDCF5
+blocktest 203x158 b:4 q:1 result 908DDCF5
+blocktest 203x158 b:4 q:3 result 908DDCF5
+blocktest 203x158 b:4 q:7 result 36D7B48B
+blocktest 203x158 b:4 q:15 result 36D7B48B
+blocktest 203x158 b:8 q:0 result FC8129D7
+blocktest 203x158 b:8 q:1 result FC8129D7
+blocktest 203x158 b:8 q:3 result FC8129D7
+blocktest 203x158 b:8 q:7 result FC8129D7
+blocktest 203x158 b:8 q:15 result FC8129D7
+blocktest 203x158 b:16 q:0 result EC1AB989
+blocktest 203x158 b:16 q:1 result EC1AB989
+blocktest 203x158 b:16 q:3 result EC1AB989
+blocktest 203x158 b:16 q:7 result EC1AB989
+blocktest 203x158 b:16 q:15 result EC1AB989