diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_fs.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index 1bcc16dd6d..6053e825e1 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_fs.c +++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c @@ -186,6 +186,7 @@ generate_quad_mask(LLVMBuilderRef builder, LLVMTypeRef i32t = LLVMInt32Type(); LLVMValueRef bits[4]; LLVMValueRef mask; + int shift; /* * XXX: We'll need a different path for 16 x u8 @@ -197,10 +198,25 @@ generate_quad_mask(LLVMBuilderRef builder, /* * mask_input >>= (quad * 4) */ + + switch (quad) { + case 0: + shift = 0; + break; + case 1: + shift = 2; + break; + case 2: + shift = 8; + break; + case 3: + shift = 10; + break; + } mask_input = LLVMBuildLShr(builder, mask_input, - LLVMConstInt(i32t, quad * 4, 0), + LLVMConstInt(i32t, shift, 0), ""); /* @@ -211,9 +227,9 @@ generate_quad_mask(LLVMBuilderRef builder, bits[0] = LLVMConstInt(i32t, 1 << 0, 0); bits[1] = LLVMConstInt(i32t, 1 << 1, 0); - bits[2] = LLVMConstInt(i32t, 1 << 2, 0); - bits[3] = LLVMConstInt(i32t, 1 << 3, 0); - + bits[2] = LLVMConstInt(i32t, 1 << 4, 0); + bits[3] = LLVMConstInt(i32t, 1 << 5, 0); + mask = LLVMBuildAnd(builder, mask, LLVMConstVector(bits, 4), ""); /* |