i965/fs_surface_builder: Mask signed integers after conversion
This commit is contained in:
parent
ba393c9d81
commit
cc065e0ad7
|
@ -717,6 +717,15 @@ namespace {
|
|||
bld.emit_minmax(offset(dst, bld, c), offset(dst, bld, c),
|
||||
brw_imm_d(-(int)scale(widths[c] - s) - 1),
|
||||
BRW_CONDITIONAL_GE);
|
||||
|
||||
/* Mask off all but the bits we actually want. Otherwise, if
|
||||
* we pass a negative number into the hardware when it's
|
||||
* expecting something like UINT8, it will happily clamp it to
|
||||
* +255 for us.
|
||||
*/
|
||||
if (is_signed && widths[c] < 32)
|
||||
bld.AND(offset(dst, bld, c), offset(dst, bld, c),
|
||||
brw_imm_d((1 << widths[c]) - 1));
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -787,6 +796,15 @@ namespace {
|
|||
/* Convert to integer. */
|
||||
bld.RNDE(offset(fdst, bld, c), offset(fdst, bld, c));
|
||||
bld.MOV(offset(dst, bld, c), offset(fdst, bld, c));
|
||||
|
||||
/* Mask off all but the bits we actually want. Otherwise, if
|
||||
* we pass a negative number into the hardware when it's
|
||||
* expecting something like UINT8, it will happily clamp it to
|
||||
* +255 for us.
|
||||
*/
|
||||
if (is_signed && widths[c] < 32)
|
||||
bld.AND(offset(dst, bld, c), offset(dst, bld, c),
|
||||
brw_imm_d((1 << widths[c]) - 1));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue