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From: "Martin Storsjö" <martin@martin.st>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 3/4] checkasm: hevc_pel: Use helpers for checking for writes out of bounds
Date: Wed, 26 Mar 2025 12:30:14 +0200
Message-ID: <20250326103015.44296-3-martin@martin.st> (raw)
In-Reply-To: <20250326103015.44296-1-martin@martin.st>

This allows catching whether the functions write outside of
the designated rectangle, and if run with "checkasm -v", it also
prints out on which side of the rectangle the overwrite was.
---
 tests/checkasm/hevc_pel.c | 157 ++++++++++++++++++++++----------------
 1 file changed, 90 insertions(+), 67 deletions(-)

diff --git a/tests/checkasm/hevc_pel.c b/tests/checkasm/hevc_pel.c
index b9417832e5..9a83613915 100644
--- a/tests/checkasm/hevc_pel.c
+++ b/tests/checkasm/hevc_pel.c
@@ -44,9 +44,14 @@ static const int offsets[] = {0, 255, -1 };
             uint32_t r = rnd() & mask;               \
             AV_WN32A(buf0 + k, r);                   \
             AV_WN32A(buf1 + k, r);                   \
-            if (k >= BUF_SIZE)                       \
-                continue;                            \
-            r = rnd();                               \
+        }                                            \
+    } while (0)
+
+#define randomize_buffers_dst()                      \
+    do {                                             \
+        int k;                                       \
+        for (k = 0; k < BUF_SIZE; k += 4) {          \
+            uint32_t r = rnd();                      \
             AV_WN32A(dst0 + k, r);                   \
             AV_WN32A(dst1 + k, r);                   \
         }                                            \
@@ -100,6 +105,7 @@ static void checkasm_check_hevc_qpel(void)
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         int16_t *dstw0 = (int16_t *) dst0, *dstw1 = (int16_t *) dst1;
                         randomize_buffers();
+                        randomize_buffers_dst();
                         call_ref(dstw0, src0, sizes[size] * SIZEOF_PIXEL, sizes[size], i, j, sizes[size]);
                         call_new(dstw1, src1, sizes[size] * SIZEOF_PIXEL, sizes[size], i, j, sizes[size]);
                         checkasm_check(int16_t, dstw0, MAX_PB_SIZE * sizeof(int16_t),
@@ -118,8 +124,8 @@ static void checkasm_check_hevc_qpel_uni(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE + SRC_EXTRA]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE + SRC_EXTRA]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
 
     HEVCDSPContext h;
     int size, bit_depth, i, j;
@@ -143,16 +149,18 @@ static void checkasm_check_hevc_qpel_uni(void)
                     if (check_func(h.put_hevc_qpel_uni[size][j][i],
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         randomize_buffers();
-                        call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                        CLEAR_PIXEL_RECT(dst0);
+                        CLEAR_PIXEL_RECT(dst1);
+                        call_ref(dst0, dst0_stride,
                                  src0, sizes[size] * SIZEOF_PIXEL,
                                  sizes[size], i, j, sizes[size]);
-                        call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        call_new(dst1, dst1_stride,
                                  src1, sizes[size] * SIZEOF_PIXEL,
                                  sizes[size], i, j, sizes[size]);
-                        checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                             dst1, sizes[size] * SIZEOF_PIXEL,
-                                             size[sizes], size[sizes], "dst");
-                        bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                    dst1, dst1_stride,
+                                                    size[sizes], size[sizes], "dst");
+                        bench_new(dst1, dst1_stride,
                                   src1, sizes[size] * SIZEOF_PIXEL,
                                   sizes[size], i, j, sizes[size]);
                     }
@@ -167,8 +175,8 @@ static void checkasm_check_hevc_qpel_uni_w(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE + SRC_EXTRA]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE + SRC_EXTRA]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
 
     HEVCDSPContext h;
     int size, bit_depth, i, j;
@@ -196,16 +204,18 @@ static void checkasm_check_hevc_qpel_uni_w(void)
                             for (wx = weights; *wx >= 0; wx++) {
                                 for (ox = offsets; *ox >= 0; ox++) {
                                     randomize_buffers();
-                                    call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                                    CLEAR_PIXEL_RECT(dst0);
+                                    CLEAR_PIXEL_RECT(dst1);
+                                    call_ref(dst0, dst0_stride,
                                              src0, sizes[size] * SIZEOF_PIXEL,
                                              sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
-                                    call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    call_new(dst1, dst1_stride,
                                              src1, sizes[size] * SIZEOF_PIXEL,
                                              sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
-                                    checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                                         dst1, sizes[size] * SIZEOF_PIXEL,
-                                                         size[sizes], size[sizes], "dst");
-                                    bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                                dst1, dst1_stride,
+                                                                size[sizes], size[sizes], "dst");
+                                    bench_new(dst1, dst1_stride,
                                               src1, sizes[size] * SIZEOF_PIXEL,
                                               sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
                                 }
@@ -223,8 +233,8 @@ static void checkasm_check_hevc_qpel_bi(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE + SRC_EXTRA]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE + SRC_EXTRA]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
     LOCAL_ALIGNED_32(int16_t, ref0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(int16_t, ref1, [BUF_SIZE]);
 
@@ -251,16 +261,18 @@ static void checkasm_check_hevc_qpel_bi(void)
                     if (check_func(h.put_hevc_qpel_bi[size][j][i],
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         randomize_buffers_ref();
-                        call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                        CLEAR_PIXEL_RECT(dst0);
+                        CLEAR_PIXEL_RECT(dst1);
+                        call_ref(dst0, dst0_stride,
                                  src0, sizes[size] * SIZEOF_PIXEL,
                                  ref0, sizes[size], i, j, sizes[size]);
-                        call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        call_new(dst1, dst1_stride,
                                  src1, sizes[size] * SIZEOF_PIXEL,
                                  ref1, sizes[size], i, j, sizes[size]);
-                        checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                             dst1, sizes[size] * SIZEOF_PIXEL,
-                                             size[sizes], size[sizes], "dst");
-                        bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                    dst1, dst1_stride,
+                                                    size[sizes], size[sizes], "dst");
+                        bench_new(dst1, dst1_stride,
                                   src1, sizes[size] * SIZEOF_PIXEL,
                                   ref1, sizes[size], i, j, sizes[size]);
                     }
@@ -275,8 +287,8 @@ static void checkasm_check_hevc_qpel_bi_w(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE + SRC_EXTRA]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE + SRC_EXTRA]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
     LOCAL_ALIGNED_32(int16_t, ref0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(int16_t, ref1, [BUF_SIZE]);
 
@@ -308,16 +320,18 @@ static void checkasm_check_hevc_qpel_bi_w(void)
                             for (wx = weights; *wx >= 0; wx++) {
                                 for (ox = offsets; *ox >= 0; ox++) {
                                     randomize_buffers_ref();
-                                    call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                                    CLEAR_PIXEL_RECT(dst0);
+                                    CLEAR_PIXEL_RECT(dst1);
+                                    call_ref(dst0, dst0_stride,
                                              src0, sizes[size] * SIZEOF_PIXEL,
                                              ref0, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
-                                    call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    call_new(dst1, dst1_stride,
                                              src1, sizes[size] * SIZEOF_PIXEL,
                                              ref1, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
-                                    checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                                         dst1, sizes[size] * SIZEOF_PIXEL,
-                                                         size[sizes], size[sizes], "dst");
-                                    bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                                dst1, dst1_stride,
+                                                                size[sizes], size[sizes], "dst");
+                                    bench_new(dst1, dst1_stride,
                                               src1, sizes[size] * SIZEOF_PIXEL,
                                               ref1, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
                                 }
@@ -364,6 +378,7 @@ static void checkasm_check_hevc_epel(void)
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         int16_t *dstw0 = (int16_t *) dst0, *dstw1 = (int16_t *) dst1;
                         randomize_buffers();
+                        randomize_buffers_dst();
                         call_ref(dstw0, src0, sizes[size] * SIZEOF_PIXEL, sizes[size], i, j, sizes[size]);
                         call_new(dstw1, src1, sizes[size] * SIZEOF_PIXEL, sizes[size], i, j, sizes[size]);
                         checkasm_check(int16_t, dstw0, MAX_PB_SIZE * sizeof(int16_t),
@@ -382,8 +397,8 @@ static void checkasm_check_hevc_epel_uni(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
 
     HEVCDSPContext h;
     int size, bit_depth, i, j;
@@ -407,16 +422,18 @@ static void checkasm_check_hevc_epel_uni(void)
                     if (check_func(h.put_hevc_epel_uni[size][j][i],
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         randomize_buffers();
-                        call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                        CLEAR_PIXEL_RECT(dst0);
+                        CLEAR_PIXEL_RECT(dst1);
+                        call_ref(dst0, dst0_stride,
                                  src0, sizes[size] * SIZEOF_PIXEL,
                                  sizes[size], i, j, sizes[size]);
-                        call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        call_new(dst1, dst1_stride,
                                  src1, sizes[size] * SIZEOF_PIXEL,
                                  sizes[size], i, j, sizes[size]);
-                        checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                             dst1, sizes[size] * SIZEOF_PIXEL,
-                                             size[sizes], size[sizes], "dst");
-                        bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                    dst1, dst1_stride,
+                                                    size[sizes], size[sizes], "dst");
+                        bench_new(dst1, dst1_stride,
                                   src1, sizes[size] * SIZEOF_PIXEL,
                                   sizes[size], i, j, sizes[size]);
                     }
@@ -431,8 +448,8 @@ static void checkasm_check_hevc_epel_uni_w(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
 
     HEVCDSPContext h;
     int size, bit_depth, i, j;
@@ -460,16 +477,18 @@ static void checkasm_check_hevc_epel_uni_w(void)
                             for (wx = weights; *wx >= 0; wx++) {
                                 for (ox = offsets; *ox >= 0; ox++) {
                                     randomize_buffers();
-                                    call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                                    CLEAR_PIXEL_RECT(dst0);
+                                    CLEAR_PIXEL_RECT(dst1);
+                                    call_ref(dst0, dst0_stride,
                                              src0, sizes[size] * SIZEOF_PIXEL,
                                              sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
-                                    call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    call_new(dst1, dst1_stride,
                                              src1, sizes[size] * SIZEOF_PIXEL,
                                              sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
-                                    checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                                         dst1, sizes[size] * SIZEOF_PIXEL,
-                                                         size[sizes], size[sizes], "dst");
-                                    bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                                dst1, dst1_stride,
+                                                                size[sizes], size[sizes], "dst");
+                                    bench_new(dst1, dst1_stride,
                                               src1, sizes[size] * SIZEOF_PIXEL,
                                               sizes[size], *denom, *wx, *ox, i, j, sizes[size]);
                                 }
@@ -487,8 +506,8 @@ static void checkasm_check_hevc_epel_bi(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
     LOCAL_ALIGNED_32(int16_t, ref0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(int16_t, ref1, [BUF_SIZE]);
 
@@ -515,16 +534,18 @@ static void checkasm_check_hevc_epel_bi(void)
                     if (check_func(h.put_hevc_epel_bi[size][j][i],
                                    "put_hevc_%s%d_%d", type, sizes[size], bit_depth)) {
                         randomize_buffers_ref();
-                        call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                        CLEAR_PIXEL_RECT(dst0);
+                        CLEAR_PIXEL_RECT(dst1);
+                        call_ref(dst0, dst0_stride,
                                  src0, sizes[size] * SIZEOF_PIXEL,
                                  ref0, sizes[size], i, j, sizes[size]);
-                        call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        call_new(dst1, dst1_stride,
                                  src1, sizes[size] * SIZEOF_PIXEL,
                                  ref1, sizes[size], i, j, sizes[size]);
-                        checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                             dst1, sizes[size] * SIZEOF_PIXEL,
-                                             size[sizes], size[sizes], "dst");
-                        bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                        checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                    dst1, dst1_stride,
+                                                    size[sizes], size[sizes], "dst");
+                        bench_new(dst1, dst1_stride,
                                   src1, sizes[size] * SIZEOF_PIXEL,
                                   ref1, sizes[size], i, j, sizes[size]);
                     }
@@ -539,8 +560,8 @@ static void checkasm_check_hevc_epel_bi_w(void)
 {
     LOCAL_ALIGNED_32(uint8_t, buf0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(uint8_t, buf1, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
-    LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
+    PIXEL_RECT(dst0, 64, 64);
+    PIXEL_RECT(dst1, 64, 64);
     LOCAL_ALIGNED_32(int16_t, ref0, [BUF_SIZE]);
     LOCAL_ALIGNED_32(int16_t, ref1, [BUF_SIZE]);
 
@@ -572,16 +593,18 @@ static void checkasm_check_hevc_epel_bi_w(void)
                             for (wx = weights; *wx >= 0; wx++) {
                                 for (ox = offsets; *ox >= 0; ox++) {
                                     randomize_buffers_ref();
-                                    call_ref(dst0, sizes[size] * SIZEOF_PIXEL,
+                                    CLEAR_PIXEL_RECT(dst0);
+                                    CLEAR_PIXEL_RECT(dst1);
+                                    call_ref(dst0, dst0_stride,
                                              src0, sizes[size] * SIZEOF_PIXEL,
                                              ref0, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
-                                    call_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    call_new(dst1, dst1_stride,
                                              src1, sizes[size] * SIZEOF_PIXEL,
                                              ref1, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
-                                    checkasm_check_pixel(dst0, sizes[size] * SIZEOF_PIXEL,
-                                                         dst1, sizes[size] * SIZEOF_PIXEL,
-                                                         size[sizes], size[sizes], "dst");
-                                    bench_new(dst1, sizes[size] * SIZEOF_PIXEL,
+                                    checkasm_check_pixel_padded(dst0, dst0_stride,
+                                                                dst1, dst1_stride,
+                                                                size[sizes], size[sizes], "dst");
+                                    bench_new(dst1, dst1_stride,
                                               src1, sizes[size] * SIZEOF_PIXEL,
                                               ref1, sizes[size], *denom, *wx, *wx, *ox, *ox, i, j, sizes[size]);
                                 }
-- 
2.39.5 (Apple Git-154)

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  parent reply	other threads:[~2025-03-26 10:30 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-26 10:30 [FFmpeg-devel] [PATCH 1/4] checkasm: Make checkasm_fail_func return whether we should print verbosely Martin Storsjö
2025-03-26 10:30 ` [FFmpeg-devel] [PATCH 2/4] checkasm: Implement helpers for defining and checking padded rects Martin Storsjö
2025-03-29  0:15   ` Michael Niedermayer
2025-03-31 13:05     ` Martin Storsjö
2025-04-01  0:28       ` Michael Niedermayer
2025-04-01  9:38         ` Martin Storsjö
2025-04-01 15:38           ` Martin Storsjö
2025-03-26 10:30 ` Martin Storsjö [this message]
2025-04-01  9:35   ` [FFmpeg-devel] [PATCH 3/4] checkasm: hevc_pel: Use helpers for checking for writes out of bounds Martin Storsjö
2025-04-01 12:54     ` yinshiyou-hf
2025-03-26 10:30 ` [FFmpeg-devel] [PATCH 4/4] checkasm: vp8dsp: Use checkasm_check_padded in check_mc Martin Storsjö

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