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authorChris Robinson <[email protected]>2011-04-27 15:46:30 -0700
committerChris Robinson <[email protected]>2011-04-27 15:46:30 -0700
commitd91b3464a4cc2e6c01d8f1e72a9cccf96db9291b (patch)
treea61bf26216a557650d5f9ea342423b3b951c83f2
parent650d94e1a6dd73ceb476a4610a96f0d9afcbde3c (diff)
Fix 24-bit sample loading for big-endian
-rw-r--r--OpenAL32/alBuffer.c42
1 files changed, 36 insertions, 6 deletions
diff --git a/OpenAL32/alBuffer.c b/OpenAL32/alBuffer.c
index 3b9392be..c4cd4252 100644
--- a/OpenAL32/alBuffer.c
+++ b/OpenAL32/alBuffer.c
@@ -1189,22 +1189,52 @@ static void EncodeIMA4Block(ALima4 *dst, const ALshort *src, ALint *sample, ALin
}
}
+static const union {
+ ALuint u;
+ ALubyte b[sizeof(ALuint)];
+} EndianTest = { 1 };
+#define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1)
+
static __inline ALint DecodeByte3(ALbyte3 val)
-{ return ((ALubyte)val.b[0]) | (((ALubyte)val.b[1])<<8) | (val.b[2]<<16); }
+{
+ if(IS_LITTLE_ENDIAN)
+ return (val.b[2]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[0]);
+ return (val.b[0]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[2]);
+}
static __inline ALbyte3 EncodeByte3(ALint val)
{
- ALbyte3 ret = {{ val, val>>8, val>>16 }};
- return ret;
+ if(IS_LITTLE_ENDIAN)
+ {
+ ALbyte3 ret = {{ val, val>>8, val>>16 }};
+ return ret;
+ }
+ else
+ {
+ ALbyte3 ret = {{ val>>16, val>>8, val }};
+ return ret;
+ }
}
static __inline ALint DecodeUByte3(ALubyte3 val)
-{ return val.b[0] | (val.b[1]<<8) | (val.b[2]<<16); }
+{
+ if(IS_LITTLE_ENDIAN)
+ return (val.b[2]<<16) | (val.b[1]<<8) | (val.b[0]);
+ return (val.b[0]<<16) | (val.b[1]<<8) | val.b[2];
+}
static __inline ALubyte3 EncodeUByte3(ALint val)
{
- ALubyte3 ret = {{ val, val>>8, val>>16 }};
- return ret;
+ if(IS_LITTLE_ENDIAN)
+ {
+ ALubyte3 ret = {{ val, val>>8, val>>16 }};
+ return ret;
+ }
+ else
+ {
+ ALubyte3 ret = {{ val>>16, val>>8, val }};
+ return ret;
+ }
}