From: Francisco Casas fcasas@codeweavers.com
--- Makefile.am | 1 + libs/vkd3d-shader/hlsl.y | 77 ++++++++++++++ tests/hlsl-smoothstep.shader_test | 169 ++++++++++++++++++++++++++++++ 3 files changed, 247 insertions(+) create mode 100644 tests/hlsl-smoothstep.shader_test
diff --git a/Makefile.am b/Makefile.am index d1f6ec6b..da7fd71f 100644 --- a/Makefile.am +++ b/Makefile.am @@ -114,6 +114,7 @@ vkd3d_shader_tests = \ tests/hlsl-state-block-syntax.shader_test \ tests/hlsl-static-initializer.shader_test \ tests/hlsl-storage-qualifiers.shader_test \ + tests/hlsl-smoothstep.shader_test \ tests/hlsl-struct-array.shader_test \ tests/hlsl-struct-assignment.shader_test \ tests/hlsl-struct-semantics.shader_test \ diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y index b834b230..4a551724 100644 --- a/libs/vkd3d-shader/hlsl.y +++ b/libs/vkd3d-shader/hlsl.y @@ -2596,6 +2596,82 @@ static bool intrinsic_saturate(struct hlsl_ctx *ctx, return !!add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_SAT, arg, loc); }
+/* smoothstep(a, b, x) = saturate(p^2 (3 - 2p)), where p = (x - a)/(b - a) */ +static bool intrinsic_smoothstep(struct hlsl_ctx *ctx, + const struct parse_initializer *params, const struct vkd3d_shader_location *loc) +{ + struct hlsl_ir_node *min_arg, *max_arg, *x_arg, *p, *p_num, *p_denom, *res; + struct hlsl_ir_constant *one, *minus_two, *three; + enum hlsl_type_class common_class; + struct hlsl_type *common_type; + unsigned int dimx, dimy; + + min_arg = params->args[0]; + max_arg = params->args[1]; + x_arg = params->args[2]; + + if (!expr_common_shape(ctx, min_arg->data_type, max_arg->data_type, loc, &common_class, &dimx, &dimy)) + return NULL; + common_type = hlsl_get_numeric_type(ctx, common_class, HLSL_TYPE_FLOAT, dimx, dimy); + + if (!expr_common_shape(ctx, common_type, x_arg->data_type, loc, &common_class, &dimx, &dimy)) + return NULL; + common_type = hlsl_get_numeric_type(ctx, common_class, HLSL_TYPE_FLOAT, dimx, dimy); + + if (!(min_arg = add_implicit_conversion(ctx, params->instrs, min_arg, common_type, loc))) + return NULL; + + if (!(max_arg = add_implicit_conversion(ctx, params->instrs, max_arg, common_type, loc))) + return NULL; + + if (!(x_arg = add_implicit_conversion(ctx, params->instrs, x_arg, common_type, loc))) + return NULL; + + if (!(min_arg = add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_NEG, min_arg, loc))) + return false; + + if (!(p_num = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_ADD, x_arg, min_arg, loc))) + return false; + + if (!(p_denom = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_ADD, max_arg, min_arg, loc))) + return false; + + if (!(one = hlsl_new_float_constant(ctx, 1.0, loc))) + return false; + list_add_tail(params->instrs, &one->node.entry); + + if (!(p_denom = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_DIV, &one->node, p_denom, loc))) + return false; + + if (!(p = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, p_num, p_denom, loc))) + return false; + + if (!(p = add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_SAT, p, loc))) + return false; + + if (!(minus_two = hlsl_new_float_constant(ctx, -2.0, loc))) + return false; + list_add_tail(params->instrs, &minus_two->node.entry); + + if (!(three = hlsl_new_float_constant(ctx, 3.0, loc))) + return false; + list_add_tail(params->instrs, &three->node.entry); + + if (!(res = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, &minus_two->node, p, loc))) + return false; + + if (!(res = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_ADD, &three->node, res, loc))) + return false; + + if (!(p = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, p, p, loc))) + return false; + + if (!(res = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, p, res, loc))) + return false; + + return true; +} + static bool intrinsic_transpose(struct hlsl_ctx *ctx, const struct parse_initializer *params, const struct vkd3d_shader_location *loc) { @@ -2681,6 +2757,7 @@ intrinsic_functions[] = {"pow", 2, true, intrinsic_pow}, {"round", 1, true, intrinsic_round}, {"saturate", 1, true, intrinsic_saturate}, + {"smoothstep", 3, true, intrinsic_smoothstep}, {"transpose", 1, true, intrinsic_transpose}, };
diff --git a/tests/hlsl-smoothstep.shader_test b/tests/hlsl-smoothstep.shader_test new file mode 100644 index 00000000..ad53b50a --- /dev/null +++ b/tests/hlsl-smoothstep.shader_test @@ -0,0 +1,169 @@ + + +[pixel shader] +float4 main() : sv_target +{ + float4 a = {1, -1, -1, 10}; + float4 b = {2, 1, 1, 20}; + float4 x = {0.3, 0.4, 2, 15.4}; + + return smoothstep(a, b, x); +} + +[test] +draw quad +probe all rgba (0, 0.784, 1.0, 0.559872) 1 + + +[pixel shader] +float4 main() : sv_target +{ + float a = 1; + float b = 2; + float4 x = {0.9, 1.2, 1.8, 2.1}; + + return smoothstep(a, b, x); +} + +[test] +draw quad +probe all rgba (0, 0.104, 0.896, 1.000000) 5 + + +[pixel shader] +float4 main() : sv_target +{ + float4 a = {1, 10, 100, 1000}; + float4 b = {2, 20, 200, 2000}; + float x = 14; + + return smoothstep(a, b, x); +} + +[test] +draw quad +probe all rgba (1.0, 0.352, 0, 0) 1 + + +[pixel shader] +float4 main() : sv_target +{ + float2 a = {1, 10}; + float3 b = {2, 20, 200}; + float4 x = {1.4, 14, 140, 1400}; + + float2 res = smoothstep(a, b, x); + return float4(res, 0, 0); +} + +[test] +draw quad +probe all rgba (0.352, 0.352, 0, 0) 1 + + +[pixel shader] +float4 main() : sv_target +{ + float3 a = {1, 10, 100}; + float2 b = {2, 20}; + float4 x = {1.4, 14, 140, 1400}; + + float2 res = smoothstep(a, b, x); + return float4(res, 0, 0); +} + +[test] +draw quad +probe all rgba (0.352, 0.352, 0, 0) 1 + + +[pixel shader] +float4 main() : sv_target +{ + float4 a = {1, 10, 100, 1000}; + float4 b = {2, 20, 200, 2000}; + float2 x = {14, 140}; + + float2 res = smoothstep(a, b, x); + return float4(res, 0, 0); +} + +[test] +draw quad +probe all rgba (1.0, 1.0, 0, 0) 1 + + +[pixel shader todo] +float4 main() : sv_target +{ + float2x3 a = {1, 1, 1, 1, 1, 1}; + float3x2 b = {2, 2, 2, 2, 2, 2}; + float4x2 x = {1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8}; + + float2x2 r = smoothstep(a, b, x); + return r; +} + +[test] +todo draw quad +todo probe all rgba (0.028, 0.104, 0.216, 0.352) 1 + + +[pixel shader] +// 4 division by zero warnings. +float4 main() : sv_target +{ + float4 a = {0, 0, 0, 0}; + float4 b = {-1, -1, 0, 0}; + float4 x = {0, -0.25, 0, 1}; + + return smoothstep(a, b, x); +} + +[test] +draw quad +probe all rgba (0, 0.156250, 0, 1.000000) + + +[pixel shader] +float4 main() : sv_target +{ + float4x1 a = {0.0, 0.0, 0.0, 0.0}; + float b = 1.0; + float3x1 x = {0.5, 0.5, 0.5}; + + float3x1 r = smoothstep(a, b, x); + return float4(r, 0); +} + +[test] +draw quad +probe all rgba (0.5, 0.5, 0.5, 0.0) + + +[pixel shader todo] +float4 main() : sv_target +{ + float4x1 a = {0.0, 0.0, 0.0, 0.0}; + float2x2 b = {1.0, 1.0, 1.0, 1.0}; + float3x1 x = {0.5, 0.5, 0.5}; + + float2x1 r = smoothstep(a, b, x); + return float4(r, r); +} + +[test] +todo draw quad +todo probe all rgba (0.5, 0.5, 0.5, 0.5) + + +[pixel shader fail todo] +float4 main() : sv_target +{ + float2x2 a = {0.0, 0.0, 0.0, 0.0}; + float4 b = 1.0; + float2x2 x = {0.5, 0.5, 0.5, 0.5}; + + smoothstep(a, b, x); + return 0; +}