shithub: dav1d

Download patch

ref: 53389fcda59c9b49f5e334a9aa212d59766824ca
parent: 9d1fcef36abdfae1fb8d9dc1b5e7f8b8cbb5b600
author: Henrik Gramner <[email protected]>
date: Mon Oct 8 09:03:26 EDT 2018

checkasm: Add unit tests for intra prediction

--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -51,6 +51,8 @@
     const char *name;
     void (*func)(void);
 } tests[] = {
+    { "ipred_8bpc", checkasm_check_ipred_8bpc },
+    { "ipred_10bpc", checkasm_check_ipred_10bpc },
     { "itx_8bpc", checkasm_check_itx_8bpc },
     { "itx_10bpc", checkasm_check_itx_10bpc },
     { "loopfilter_8bpc", checkasm_check_loopfilter_8bpc },
@@ -408,6 +410,7 @@
 }
 
 int main(int argc, char *argv[]) {
+    (void)func_new, (void)func_ref;
 #ifdef readtime
     unsigned int seed = readtime();
 #else
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -36,6 +36,9 @@
 #include "include/common/attributes.h"
 #include "include/common/intops.h"
 
+void checkasm_check_ipred_8bpc(void);
+void checkasm_check_ipred_10bpc(void);
+
 void checkasm_check_itx_8bpc(void);
 void checkasm_check_itx_10bpc(void);
 
--- /dev/null
+++ b/tests/checkasm/ipred.c
@@ -1,0 +1,101 @@
+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests/checkasm/checkasm.h"
+#include "src/ipred.h"
+#include "src/levels.h"
+
+static const char *const intra_pred_mode_names[N_IMPL_INTRA_PRED_MODES] = {
+    [DC_PRED]       = "dc",
+    [DC_128_PRED]   = "dc_128",
+    [TOP_DC_PRED]   = "dc_top",
+    [LEFT_DC_PRED]  = "dc_left",
+    [HOR_PRED]      = "h",
+    [VERT_PRED]     = "v",
+    [PAETH_PRED]    = "paeth",
+    [SMOOTH_PRED]   = "smooth",
+    [SMOOTH_V_PRED] = "smooth_v",
+    [SMOOTH_H_PRED] = "smooth_h",
+    [Z1_PRED]       = "z1",
+    [Z2_PRED]       = "z2",
+    [Z3_PRED]       = "z3",
+    [FILTER_PRED]   = "filter"
+};
+
+static const uint8_t z_angles[27] = {
+     3,  6,  9,
+    14, 17, 20, 23, 26, 29, 32,
+    36, 39, 42, 45, 48, 51, 54,
+    58, 61, 64, 67, 70, 73, 76,
+    81, 84, 87
+};
+
+static void check_intra_pred(Dav1dIntraPredDSPContext *const c) {
+    ALIGN_STK_32(pixel, c_dst, 64 * 64,);
+    ALIGN_STK_32(pixel, a_dst, 64 * 64,);
+    ALIGN_STK_32(pixel, topleft_buf, 257,);
+    pixel *const topleft = topleft_buf + 128;
+
+    declare_func(void, pixel *dst, ptrdiff_t stride, const pixel *topleft,
+                 int width, int height, int angle);
+
+    for (int mode = 0; mode < N_IMPL_INTRA_PRED_MODES; mode++)
+        for (int w = 4; w <= (mode == FILTER_PRED ? 32 : 64); w <<= 1)
+            if (check_func(c->intra_pred[mode], "intra_pred_%s_w%d_%dbpc",
+                intra_pred_mode_names[mode], w, BITDEPTH))
+            {
+                for (int h = imax(w / 4, 4); h <= imin(w * 4,
+                    (mode == FILTER_PRED ? 32 : 64)); h <<= 1)
+                {
+                    const ptrdiff_t stride = w * sizeof(pixel);
+
+                    int a = 0;
+                    if (mode >= Z1_PRED && mode <= Z3_PRED) /* angle */
+                        a = 90 * (mode - Z1_PRED) + z_angles[rand() % 27];
+                    else if (mode == FILTER_PRED) /* filter_idx */
+                        a = rand() % 5;
+
+                    for (int i = -h * 2; i <= w * 2; i++)
+                        topleft[i] = rand() & ((1 << BITDEPTH) - 1);
+
+                    call_ref(c_dst, stride, topleft, w, h, a);
+                    call_new(a_dst, stride, topleft, w, h, a);
+                    if (memcmp(c_dst, a_dst, w * h * sizeof(*c_dst)))
+                        fail();
+
+                    bench_new(a_dst, stride, topleft, w, h, a);
+                }
+            }
+    report("intra_pred");
+}
+
+void bitfn(checkasm_check_ipred)(void) {
+    Dav1dIntraPredDSPContext c;
+    bitfn(dav1d_intra_pred_dsp_init)(&c);
+
+    check_intra_pred(&c);
+}
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -35,6 +35,7 @@
     checkasm_sources = files('checkasm/checkasm.c')
 
     checkasm_tmpl_sources = files(
+        'checkasm/ipred.c',
         'checkasm/itx.c',
         'checkasm/loopfilter.c',
         'checkasm/mc.c',