diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/util/tgsi_build.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_build.c b/src/gallium/auxiliary/tgsi/util/tgsi_build.c index 63cc27becc0..18e44b38c24 100644 --- a/src/gallium/auxiliary/tgsi/util/tgsi_build.c +++ b/src/gallium/auxiliary/tgsi/util/tgsi_build.c @@ -628,6 +628,14 @@ tgsi_build_full_instruction( tgsi_default_src_register_ext_swz() ) ) { struct tgsi_src_register_ext_swz *src_register_ext_swz; + /* Use of the extended swizzle requires the simple swizzle to be identity. + */ + assert( reg->SrcRegister.SwizzleX == TGSI_SWIZZLE_X ); + assert( reg->SrcRegister.SwizzleY == TGSI_SWIZZLE_Y ); + assert( reg->SrcRegister.SwizzleZ == TGSI_SWIZZLE_Z ); + assert( reg->SrcRegister.SwizzleW == TGSI_SWIZZLE_W ); + assert( reg->SrcRegister.Negate == FALSE ); + if( maxsize <= size ) return 0; src_register_ext_swz = |