shithub: libvpx

Download patch

ref: 04e9456567790666b65de4c1989cc1b5a5b8480d
parent: 6af42f5102ad7c00d3fed389b186663a88d812ee
parent: 7ac3acf762ca450140d51616c15ca006e9e1df13
author: James Zern <jzern@google.com>
date: Fri Apr 7 03:32:14 EDT 2017

Merge changes from topic 'Wshorten'

* changes:
  configure: enable -Wshorten-64-to-32 for hbd
  vp9_encodeframe: resolve -Wshorten-64-to-32 in hbd
  Resolve -Wshorten-64-to-32 in highbd variance.

--- a/configure
+++ b/configure
@@ -594,11 +594,9 @@
         if enabled mips || [ -z "${INLINE}" ]; then
           enabled extra_warnings || check_add_cflags -Wno-unused-function
         fi
-        if ! enabled vp9_highbitdepth; then
-          # Avoid this warning for third_party C++ sources. Some reorganization
-          # would be needed to apply this only to test/*.cc.
-          check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
-        fi
+        # Avoid this warning for third_party C++ sources. Some reorganization
+        # would be needed to apply this only to test/*.cc.
+        check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
     fi
 
     if enabled icc; then
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -157,7 +157,8 @@
                              CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_8), 0, &sse);
       break;
   }
-  return ROUND64_POWER_OF_TWO((int64_t)var, num_pels_log2_lookup[bs]);
+  return (unsigned int)ROUND64_POWER_OF_TWO((int64_t)var,
+                                            num_pels_log2_lookup[bs]);
 }
 #endif  // CONFIG_VP9_HIGHBITDEPTH
 
--- a/vpx_dsp/variance.c
+++ b/vpx_dsp/variance.c
@@ -294,7 +294,7 @@
                                               uint32_t *sse) {                 \
     int sum;                                                                   \
     highbd_8_variance(a, a_stride, b, b_stride, W, H, sse, &sum);              \
-    return *sse - (((int64_t)sum * sum) / (W * H));                            \
+    return *sse - (uint32_t)(((int64_t)sum * sum) / (W * H));                  \
   }                                                                            \
                                                                                \
   uint32_t vpx_highbd_10_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
--- a/vpx_dsp/x86/highbd_variance_sse2.c
+++ b/vpx_dsp/x86/highbd_variance_sse2.c
@@ -135,7 +135,7 @@
     highbd_8_variance_sse2(                                                \
         src, src_stride, ref, ref_stride, w, h, sse, &sum,                 \
         vpx_highbd_calc##block_size##x##block_size##var_sse2, block_size); \
-    return *sse - (((int64_t)sum * sum) >> shift);                         \
+    return *sse - (uint32_t)(((int64_t)sum * sum) >> shift);               \
   }                                                                        \
                                                                            \
   uint32_t vpx_highbd_10_variance##w##x##h##_sse2(                         \
@@ -293,12 +293,13 @@
       }                                                                        \
     }                                                                          \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    return sse - (uint32_t)((cast se * se) >> (wlog2 + hlog2));                \
   }                                                                            \
                                                                                \
   uint32_t vpx_highbd_10_sub_pixel_variance##w##x##h##_##opt(                  \
       const uint8_t *src8, int src_stride, int x_offset, int y_offset,         \
       const uint8_t *dst8, int dst_stride, uint32_t *sse_ptr) {                \
+    int64_t var;                                                               \
     uint32_t sse;                                                              \
     uint16_t *src = CONVERT_TO_SHORTPTR(src8);                                 \
     uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);                                 \
@@ -328,7 +329,8 @@
     se = ROUND_POWER_OF_TWO(se, 2);                                            \
     sse = ROUND_POWER_OF_TWO(sse, 4);                                          \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    var = (int64_t)(sse) - ((cast se * se) >> (wlog2 + hlog2));                \
+    return (var >= 0) ? (uint32_t)var : 0;                                     \
   }                                                                            \
                                                                                \
   uint32_t vpx_highbd_12_sub_pixel_variance##w##x##h##_##opt(                  \
@@ -337,6 +339,7 @@
     int start_row;                                                             \
     uint32_t sse;                                                              \
     int se = 0;                                                                \
+    int64_t var;                                                               \
     uint64_t long_sse = 0;                                                     \
     uint16_t *src = CONVERT_TO_SHORTPTR(src8);                                 \
     uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);                                 \
@@ -375,7 +378,8 @@
     se = ROUND_POWER_OF_TWO(se, 4);                                            \
     sse = (uint32_t)ROUND_POWER_OF_TWO(long_sse, 8);                           \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    var = (int64_t)(sse) - ((cast se * se) >> (wlog2 + hlog2));                \
+    return (var >= 0) ? (uint32_t)var : 0;                                     \
   }
 
 #define FNS(opt)                        \
@@ -444,7 +448,7 @@
       }                                                                        \
     }                                                                          \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    return sse - (uint32_t)((cast se * se) >> (wlog2 + hlog2));                \
   }                                                                            \
                                                                                \
   uint32_t vpx_highbd_10_sub_pixel_avg_variance##w##x##h##_##opt(              \
@@ -451,6 +455,7 @@
       const uint8_t *src8, int src_stride, int x_offset, int y_offset,         \
       const uint8_t *dst8, int dst_stride, uint32_t *sse_ptr,                  \
       const uint8_t *sec8) {                                                   \
+    int64_t var;                                                               \
     uint32_t sse;                                                              \
     uint16_t *src = CONVERT_TO_SHORTPTR(src8);                                 \
     uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);                                 \
@@ -481,7 +486,8 @@
     se = ROUND_POWER_OF_TWO(se, 2);                                            \
     sse = ROUND_POWER_OF_TWO(sse, 4);                                          \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    var = (int64_t)(sse) - ((cast se * se) >> (wlog2 + hlog2));                \
+    return (var >= 0) ? (uint32_t)var : 0;                                     \
   }                                                                            \
                                                                                \
   uint32_t vpx_highbd_12_sub_pixel_avg_variance##w##x##h##_##opt(              \
@@ -489,6 +495,7 @@
       const uint8_t *dst8, int dst_stride, uint32_t *sse_ptr,                  \
       const uint8_t *sec8) {                                                   \
     int start_row;                                                             \
+    int64_t var;                                                               \
     uint32_t sse;                                                              \
     int se = 0;                                                                \
     uint64_t long_sse = 0;                                                     \
@@ -530,7 +537,8 @@
     se = ROUND_POWER_OF_TWO(se, 4);                                            \
     sse = (uint32_t)ROUND_POWER_OF_TWO(long_sse, 8);                           \
     *sse_ptr = sse;                                                            \
-    return sse - ((cast se * se) >> (wlog2 + hlog2));                          \
+    var = (int64_t)(sse) - ((cast se * se) >> (wlog2 + hlog2));                \
+    return (var >= 0) ? (uint32_t)var : 0;                                     \
   }
 
 #define FNS(opt1)                        \