diff options
| author | Brian Paul <[email protected]> | 2011-11-12 11:50:32 -0700 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2011-11-15 07:49:26 -0700 |
| commit | 546f76d58f619e3d7e016b3eb04254d5c5c3f39f (patch) | |
| tree | 7550dd18a5864300189b15117de22a5759581b92 /src/mesa/main/image.c | |
| parent | b098e1af1cdaea8767b8f1416469cdd02a9c39a9 (diff) | |
mesa: new BYTE/SHORT_TO_FLOATZ() macros
Rather than redefining the BYTE/SHORT_TO_FLOAT macros, just define new
ones with different names. These macros preserve zero when converting.
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/main/image.c')
| -rw-r--r-- | src/mesa/main/image.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 3a6f01c57c2..fdb4b31ba35 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -39,22 +39,6 @@ #include "mtypes.h" -/** - * NOTE: - * Normally, BYTE_TO_FLOAT(0) returns 0.00392 That causes problems when - * we later convert the float to a packed integer value (such as for - * GL_RGB5_A1) because we'll wind up with a non-zero value. - * - * We redefine the macros here so zero is handled correctly. - */ -#undef BYTE_TO_FLOAT -#define BYTE_TO_FLOAT(B) ((B) == 0 ? 0.0F : ((2.0F * (B) + 1.0F) * (1.0F/255.0F))) - -#undef SHORT_TO_FLOAT -#define SHORT_TO_FLOAT(S) ((S) == 0 ? 0.0F : ((2.0F * (S) + 1.0F) * (1.0F/65535.0F))) - - - /** * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise. |