Index: third_party/libopenjpeg20/opj_intmath.h |
diff --git a/third_party/libopenjpeg20/opj_intmath.h b/third_party/libopenjpeg20/opj_intmath.h |
index 4e299469dee73420b473bc56d5523c62dbe6fbf3..3f7934c470cbbf3bec7e9fab5488df7f8de74018 100644 |
--- a/third_party/libopenjpeg20/opj_intmath.h |
+++ b/third_party/libopenjpeg20/opj_intmath.h |
@@ -87,7 +87,7 @@ static INLINE OPJ_UINT32 opj_uint_max(OPJ_UINT32 a, OPJ_UINT32 b) { |
*/ |
static INLINE OPJ_UINT32 opj_uint_adds(OPJ_UINT32 a, OPJ_UINT32 b) { |
OPJ_UINT64 sum = (OPJ_UINT64)a + (OPJ_UINT64)b; |
- return -(OPJ_UINT32)(sum >> 32) | (OPJ_UINT32)sum; |
+ return (OPJ_UINT32)(-(OPJ_INT32)(sum >> 32)) | (OPJ_UINT32)sum; |
} |
/** |
@@ -135,8 +135,25 @@ Divide an integer by a power of 2 and round upwards |
@return Returns a divided by 2^b |
*/ |
static INLINE OPJ_INT32 opj_int_ceildivpow2(OPJ_INT32 a, OPJ_INT32 b) { |
- return (OPJ_INT32)((a + (OPJ_INT64)(1 << b) - 1) >> b); |
+ return (OPJ_INT32)((a + ((OPJ_INT64)1 << b) - 1) >> b); |
} |
+ |
+/** |
+ Divide a 64bits integer by a power of 2 and round upwards |
+ @return Returns a divided by 2^b |
+ */ |
+static INLINE OPJ_INT32 opj_int64_ceildivpow2(OPJ_INT64 a, OPJ_INT32 b) { |
+ return (OPJ_INT32)((a + ((OPJ_INT64)1 << b) - 1) >> b); |
+} |
+ |
+/** |
+ Divide an integer by a power of 2 and round upwards |
+ @return Returns a divided by 2^b |
+ */ |
+static INLINE OPJ_UINT32 opj_uint_ceildivpow2(OPJ_UINT32 a, OPJ_UINT32 b) { |
+ return (OPJ_UINT32)((a + ((OPJ_UINT64)1U << b) - 1U) >> b); |
+} |
+ |
/** |
Divide an integer by a power of 2 and round downwards |
@return Returns a divided by 2^b |
@@ -175,7 +192,11 @@ Multiply two fixed-precision rational numbers. |
@return Returns a * b |
*/ |
static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) { |
+#if defined(_MSC_VER) && (_MSC_VER >= 1400) && !defined(__INTEL_COMPILER) && defined(_M_IX86) |
+ OPJ_INT64 temp = __emul(a, b); |
+#else |
OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ; |
+#endif |
temp += 4096; |
assert((temp >> 13) <= (OPJ_INT64)0x7FFFFFFF); |
assert((temp >> 13) >= (-(OPJ_INT64)0x7FFFFFFF - (OPJ_INT64)1)); |
@@ -183,7 +204,11 @@ static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) { |
} |
static INLINE OPJ_INT32 opj_int_fix_mul_t1(OPJ_INT32 a, OPJ_INT32 b) { |
+#if defined(_MSC_VER) && (_MSC_VER >= 1400) && !defined(__INTEL_COMPILER) && defined(_M_IX86) |
+ OPJ_INT64 temp = __emul(a, b); |
+#else |
OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ; |
+#endif |
temp += 4096; |
assert((temp >> (13 + 11 - T1_NMSEDEC_FRACBITS)) <= (OPJ_INT64)0x7FFFFFFF); |
assert((temp >> (13 + 11 - T1_NMSEDEC_FRACBITS)) >= (-(OPJ_INT64)0x7FFFFFFF - (OPJ_INT64)1)); |