diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_conv.c')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_conv.c | 32 |
1 files changed, 11 insertions, 21 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_conv.c b/src/gallium/auxiliary/gallivm/lp_bld_conv.c index 3f7f2ebde9..5e7260dc21 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_conv.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_conv.c @@ -83,6 +83,9 @@ * * Although the result values can be scaled to an arbitrary bit width specified * by dst_width, the actual result type will have the same width. + * + * Ex: src = { float, float, float, float } + * return { i32, i32, i32, i32 } where each value is in [0, 2^dst_width-1]. */ LLVMValueRef lp_build_clamped_float_to_unsigned_norm(LLVMBuilderRef builder, @@ -152,6 +155,8 @@ lp_build_clamped_float_to_unsigned_norm(LLVMBuilderRef builder, /** * Inverse of lp_build_clamped_float_to_unsigned_norm above. + * Ex: src = { i32, i32, i32, i32 } with values in range [0, 2^src_width-1] + * return {float, float, float, float} with values in range [0, 1]. */ LLVMValueRef lp_build_unsigned_norm_to_float(LLVMBuilderRef builder, @@ -219,14 +224,13 @@ lp_build_conv(LLVMBuilderRef builder, unsigned num_tmps; unsigned i; - /* Register width must remain constant */ - assert(src_type.width * src_type.length == dst_type.width * dst_type.length); - /* We must not loose or gain channels. Only precision */ assert(src_type.length * num_srcs == dst_type.length * num_dsts); assert(src_type.length <= LP_MAX_VECTOR_LENGTH); assert(dst_type.length <= LP_MAX_VECTOR_LENGTH); + assert(num_srcs <= LP_MAX_VECTOR_LENGTH); + assert(num_dsts <= LP_MAX_VECTOR_LENGTH); tmp_type = src_type; for(i = 0; i < num_srcs; ++i) @@ -330,25 +334,11 @@ lp_build_conv(LLVMBuilderRef builder, assert(!tmp_type.floating || tmp_type.width == dst_type.width); - if(tmp_type.width > dst_type.width) { - assert(num_dsts == 1); - tmp[0] = lp_build_pack(builder, tmp_type, dst_type, TRUE, tmp, num_tmps); - tmp_type.width = dst_type.width; - tmp_type.length = dst_type.length; - num_tmps = 1; - } - - if(tmp_type.width < dst_type.width) { - assert(num_tmps == 1); - lp_build_unpack(builder, tmp_type, dst_type, tmp[0], tmp, num_dsts); - tmp_type.width = dst_type.width; - tmp_type.length = dst_type.length; - num_tmps = num_dsts; - } + lp_build_resize(builder, tmp_type, dst_type, tmp, num_srcs, tmp, num_dsts); - assert(tmp_type.width == dst_type.width); - assert(tmp_type.length == dst_type.length); - assert(num_tmps == num_dsts); + tmp_type.width = dst_type.width; + tmp_type.length = dst_type.length; + num_tmps = num_dsts; /* * Scale to the widest range |