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| author | mayeut <mayeut@users.noreply.github.com> | 2015-08-23 11:38:04 +0200 |
|---|---|---|
| committer | mayeut <mayeut@users.noreply.github.com> | 2015-08-23 11:38:04 +0200 |
| commit | 38770403d49528936fae44de5fc6089f0bf0c3e9 (patch) | |
| tree | 93ad0e4855905d63054b8d253c70531e4b913944 /src/lib/openjp2/opj_intmath.h | |
| parent | 589cc547b9f32afe7832665f3ec26e73e3452772 (diff) | |
Fix some calculations in opj_tcd_init_tile
Fixes #486
Fixes #394
Update #480
Update #388
Diffstat (limited to 'src/lib/openjp2/opj_intmath.h')
| -rw-r--r-- | src/lib/openjp2/opj_intmath.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/src/lib/openjp2/opj_intmath.h b/src/lib/openjp2/opj_intmath.h index f39f6843..3f7934c4 100644 --- a/src/lib/openjp2/opj_intmath.h +++ b/src/lib/openjp2/opj_intmath.h @@ -135,7 +135,15 @@ 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); } /** @@ -143,7 +151,7 @@ static INLINE OPJ_INT32 opj_int_ceildivpow2(OPJ_INT32 a, OPJ_INT32 b) { @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); + return (OPJ_UINT32)((a + ((OPJ_UINT64)1U << b) - 1U) >> b); } /** @@ -184,8 +192,8 @@ 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);
+#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 @@ -196,8 +204,8 @@ 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);
+#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 |