diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c index 5321a25452e..7f0f058c222 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c @@ -150,6 +150,12 @@ struct lp_build_tgsi_soa_context */ LLVMValueRef outputs_array; + /* We allocate/use this array of inputs if (1 << TGSI_FILE_INPUT) is + * set in the indirect_files field. + * The inputs[] array above is unused then. + */ + LLVMValueRef inputs_array; + const struct tgsi_shader_info *info; /** bitmask indicating which register files are accessed indirectly */ unsigned indirect_files; @@ -466,8 +472,6 @@ get_output_ptr(struct lp_build_tgsi_soa_context *bld, } } - - /** * Gather vector. * XXX the lp_build_gather() function should be capable of doing this @@ -661,7 +665,38 @@ emit_fetch( break; case TGSI_FILE_INPUT: - res = bld->inputs[reg->Register.Index][swizzle]; + if (reg->Register.Indirect) { + LLVMValueRef swizzle_vec = + lp_build_const_int_vec(uint_bld->type, swizzle); + LLVMValueRef length_vec = + lp_build_const_int_vec(uint_bld->type, bld->base.type.length); + LLVMValueRef index_vec; /* index into the const buffer */ + LLVMValueRef inputs_array; + LLVMTypeRef float4_ptr_type; + + /* index_vec = (indirect_index * 4 + swizzle) * length */ + index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2); + index_vec = lp_build_add(uint_bld, index_vec, swizzle_vec); + index_vec = lp_build_mul(uint_bld, index_vec, length_vec); + + /* cast inputs_array pointer to float* */ + float4_ptr_type = LLVMPointerType(LLVMFloatType(), 0); + inputs_array = LLVMBuildBitCast(uint_bld->builder, bld->inputs_array, + float4_ptr_type, ""); + + /* Gather values from the temporary register array */ + res = build_gather(bld, inputs_array, index_vec); + } else { + if (bld->indirect_files & (1 << TGSI_FILE_INPUT)) { + LLVMValueRef lindex = lp_build_const_int32(reg->Register.Index * 4 + swizzle); + LLVMValueRef input_ptr = LLVMBuildGEP(bld->base.builder, + bld->inputs_array, &lindex, 1, ""); + res = LLVMBuildLoad(bld->base.builder, input_ptr, ""); + } + else { + res = bld->inputs[reg->Register.Index][swizzle]; + } + } assert(res); break; @@ -2314,6 +2349,32 @@ lp_build_tgsi_soa(LLVMBuilderRef builder, "output_array"); } + /* If we have indirect addressing in inputs we need to copy them into + * our alloca array to be able to iterate over them */ + if (bld.indirect_files & (1 << TGSI_FILE_INPUT)) { + unsigned index, chan; + LLVMTypeRef vec_type = bld.base.vec_type; + LLVMValueRef array_size = LLVMConstInt(LLVMInt32Type(), + info->file_max[TGSI_FILE_INPUT]*4 + 4, 0); + bld.inputs_array = lp_build_array_alloca(bld.base.builder, + vec_type, array_size, + "input_array"); + + assert(info->num_inputs <= info->file_max[TGSI_FILE_INPUT] + 1); + + for (index = 0; index < info->num_inputs; ++index) { + for (chan = 0; chan < NUM_CHANNELS; ++chan) { + LLVMValueRef lindex = lp_build_const_int32(index * 4 + chan); + LLVMValueRef input_ptr = + LLVMBuildGEP(bld.base.builder, bld.inputs_array, + &lindex, 1, ""); + LLVMValueRef value = bld.inputs[index][chan]; + if (value) + LLVMBuildStore(bld.base.builder, value, input_ptr); + } + } + } + tgsi_parse_init( &parse, tokens ); while( !tgsi_parse_end_of_tokens( &parse ) ) { |