#!amber

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# A tessellation evaluation shader test for ModfStruct.

DEVICE_FEATURE tessellationShader

# SHADER vertex vert_shader GLSL
# #version 430
# precision highp float;
#
# const uint ndp = 1296;
# const uint ndpSqrt = uint(sqrt(ndp));
# const float halfGridElementSize = 1.0 / float(ndpSqrt);
#
# layout (location = 0) in vec2 position;
# layout (location = 0) flat out uint ndx_out;
#
# void main ()
# {
#     uint xcoord = uint(ndpSqrt * ((position.x + halfGridElementSize + 1) / 2) - 1);
#     uint ycoord = uint(ndpSqrt * ((position.y + halfGridElementSize + 1) / 2) - 1);
#     ndx_out = xcoord + ycoord * ndpSqrt;
#
#     gl_Position = vec4(position, 0, 1);
#
#     return;
# }
# END

SHADER vertex vert_shader SPIRV-ASM
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Vertex %main "main" %position %ndx_out %_
               OpDecorate %position Location 0
               OpDecorate %ndx_out Flat
               OpDecorate %ndx_out Location 0
               OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex Block
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
       %uint = OpTypeInt 32 0
      %float = OpTypeFloat 32
    %v2float = OpTypeVector %float 2
%_ptr_Input_v2float = OpTypePointer Input %v2float
   %position = OpVariable %_ptr_Input_v2float Input
     %uint_0 = OpConstant %uint 0
%_ptr_Input_float = OpTypePointer Input %float
    %float_1 = OpConstant %float 1
     %uint_1 = OpConstant %uint 1
%_ptr_Output_uint = OpTypePointer Output %uint
    %ndx_out = OpVariable %_ptr_Output_uint Output
    %uint_36 = OpConstant %uint 36
    %v4float = OpTypeVector %float 4
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
          %_ = OpVariable %_ptr_Output_gl_PerVertex Output
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
    %float_0 = OpConstant %float 0
%_ptr_Output_v4float = OpTypePointer Output %v4float
%float_1_02777779 = OpConstant %float 1.02777779
   %float_18 = OpConstant %float 18
       %main = OpFunction %void None %3
          %5 = OpLabel
         %16 = OpAccessChain %_ptr_Input_float %position %uint_0
         %17 = OpLoad %float %16
         %21 = OpFAdd %float %17 %float_1_02777779
         %24 = OpFMul %float %21 %float_18
         %25 = OpFSub %float %24 %float_1
         %26 = OpConvertFToU %uint %25
         %29 = OpAccessChain %_ptr_Input_float %position %uint_1
         %30 = OpLoad %float %29
         %32 = OpFAdd %float %30 %float_1_02777779
         %34 = OpFMul %float %32 %float_18
         %35 = OpFSub %float %34 %float_1
         %36 = OpConvertFToU %uint %35
         %42 = OpIMul %uint %36 %uint_36
         %43 = OpIAdd %uint %26 %42
               OpStore %ndx_out %43
         %51 = OpLoad %v2float %position
         %53 = OpCompositeExtract %float %51 0
         %54 = OpCompositeExtract %float %51 1
         %55 = OpCompositeConstruct %v4float %53 %54 %float_0 %float_1
         %57 = OpAccessChain %_ptr_Output_v4float %_ %int_0
               OpStore %57 %55
               OpReturn
               OpFunctionEnd
END

# SHADER tessellation_control tesc_shader GLSL
# #version 430
# precision highp float;
#
# layout (vertices = 3) out;
#
# layout (location = 0) flat in uint ndx_in[];
# layout (location = 0) flat out uint ndx_out[];
#
# void main ()
# {
#     gl_TessLevelInner[0]    = 1.0;
#     gl_TessLevelInner[1]    = 1.0;
#     gl_TessLevelOuter[0]    = 1.0;
#     gl_TessLevelOuter[1]    = 1.0;
#     gl_TessLevelOuter[2]    = 1.0;
#     gl_TessLevelOuter[3]    = 1.0;
#
#     gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
#     ndx_out[gl_InvocationID] = ndx_in[gl_InvocationID];
# }
# END

SHADER tessellation_control tesc_shader SPIRV-ASM
               OpCapability Tessellation
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint TessellationControl %main "main" %gl_TessLevelInner %gl_TessLevelOuter %gl_out %gl_InvocationID %gl_in %ndx_out %ndx_in
               OpExecutionMode %main OutputVertices 3
               OpDecorate %gl_TessLevelInner Patch
               OpDecorate %gl_TessLevelInner BuiltIn TessLevelInner
               OpDecorate %gl_TessLevelOuter Patch
               OpDecorate %gl_TessLevelOuter BuiltIn TessLevelOuter
               OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex Block
               OpDecorate %gl_InvocationID BuiltIn InvocationId
               OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex_0 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex_0 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex_0 Block
               OpDecorate %ndx_out Flat
               OpDecorate %ndx_out Location 0
               OpDecorate %ndx_in Flat
               OpDecorate %ndx_in Location 0
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
      %float = OpTypeFloat 32
       %uint = OpTypeInt 32 0
     %uint_2 = OpConstant %uint 2
%_arr_float_uint_2 = OpTypeArray %float %uint_2
%_ptr_Output__arr_float_uint_2 = OpTypePointer Output %_arr_float_uint_2
%gl_TessLevelInner = OpVariable %_ptr_Output__arr_float_uint_2 Output
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
    %float_1 = OpConstant %float 1
%_ptr_Output_float = OpTypePointer Output %float
      %int_1 = OpConstant %int 1
     %uint_4 = OpConstant %uint 4
%_arr_float_uint_4 = OpTypeArray %float %uint_4
%_ptr_Output__arr_float_uint_4 = OpTypePointer Output %_arr_float_uint_4
%gl_TessLevelOuter = OpVariable %_ptr_Output__arr_float_uint_4 Output
      %int_2 = OpConstant %int 2
      %int_3 = OpConstant %int 3
    %v4float = OpTypeVector %float 4
     %uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1
     %uint_3 = OpConstant %uint 3
%_arr_gl_PerVertex_uint_3 = OpTypeArray %gl_PerVertex %uint_3
%_ptr_Output__arr_gl_PerVertex_uint_3 = OpTypePointer Output %_arr_gl_PerVertex_uint_3
     %gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_uint_3 Output
%_ptr_Input_int = OpTypePointer Input %int
%gl_InvocationID = OpVariable %_ptr_Input_int Input
%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1
    %uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_0_uint_32 = OpTypeArray %gl_PerVertex_0 %uint_32
%_ptr_Input__arr_gl_PerVertex_0_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_0_uint_32
      %gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_0_uint_32 Input
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_arr_uint_uint_3 = OpTypeArray %uint %uint_3
%_ptr_Output__arr_uint_uint_3 = OpTypePointer Output %_arr_uint_uint_3
    %ndx_out = OpVariable %_ptr_Output__arr_uint_uint_3 Output
%_arr_uint_uint_32 = OpTypeArray %uint %uint_32
%_ptr_Input__arr_uint_uint_32 = OpTypePointer Input %_arr_uint_uint_32
     %ndx_in = OpVariable %_ptr_Input__arr_uint_uint_32 Input
%_ptr_Input_uint = OpTypePointer Input %uint
%_ptr_Output_uint = OpTypePointer Output %uint
       %main = OpFunction %void None %3
          %5 = OpLabel
         %16 = OpAccessChain %_ptr_Output_float %gl_TessLevelInner %int_0
               OpStore %16 %float_1
         %18 = OpAccessChain %_ptr_Output_float %gl_TessLevelInner %int_1
               OpStore %18 %float_1
         %23 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_0
               OpStore %23 %float_1
         %24 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_1
               OpStore %24 %float_1
         %26 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_2
               OpStore %26 %float_1
         %28 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_3
               OpStore %28 %float_1
         %39 = OpLoad %int %gl_InvocationID
         %47 = OpAccessChain %_ptr_Input_v4float %gl_in %39 %int_0
         %48 = OpLoad %v4float %47
         %50 = OpAccessChain %_ptr_Output_v4float %gl_out %39 %int_0
               OpStore %50 %48
         %60 = OpAccessChain %_ptr_Input_uint %ndx_in %39
         %61 = OpLoad %uint %60
         %63 = OpAccessChain %_ptr_Output_uint %ndx_out %39
               OpStore %63 %61
               OpReturn
               OpFunctionEnd
END

# SHADER tessellation_evaluation tese_shader GLSL
# #version 430
# precision highp float;
#
# const uint ndp = 1296;
#
# layout (triangles) in;
#
# layout (location = 0) flat in uint ndx_in[];
# layout (location = 0) flat out vec2 modf_x_out;
# layout (location = 1) flat out vec2 modf_i_out;
# layout (location = 2) flat out vec2 modfStruct_x_out;
# layout (location = 3) flat out vec2 modfStruct_i_out;
#
# layout(set = 0, binding = 0) readonly buffer block0 {
#     uvec2 in_values[ndp];
# };
#
# struct modfStructType
# {
#     vec2 x;
#     vec2 i;
# };
#
# // Replaced with native function in SPIR-V.
# modfStructType modfStruct (vec2 orig)
# {
#     vec2 x, i;
#     x = modf(orig, i);
#     modfStructType res = { x, i };
#     return res;
# }
#
# void main ()
# {
#     gl_Position = gl_TessCoord.x * gl_in[0].gl_Position +
#                   gl_TessCoord.y * gl_in[1].gl_Position +
#                   gl_TessCoord.z * gl_in[2].gl_Position;
#
#     uvec2 in_uint = in_values[ndx_in[0]];
#     vec2 in_float = uintBitsToFloat(in_uint);
#     vec2 x, i;
#     modfStructType res;
#
#     x = modf(in_float, i);
#     res = modfStruct(in_float);
#
#     modf_x_out = x;
#     modf_i_out = i;
#     modfStruct_x_out = res.x;
#     modfStruct_i_out = res.i;
# }
# END

SHADER tessellation_evaluation tese_shader SPIRV-ASM
               OpCapability Tessellation
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint TessellationEvaluation %main "main" %_ %gl_TessCoord %gl_in %ndx_in %modf_x_out %modf_i_out %modfStruct_x_out %modfStruct_i_out
               OpExecutionMode %main Triangles
               OpExecutionMode %main SpacingEqual
               OpExecutionMode %main VertexOrderCcw
               OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex Block
               OpDecorate %gl_TessCoord BuiltIn TessCoord
               OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex_0 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex_0 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex_0 Block
               OpDecorate %_arr_v2uint_uint_1296 ArrayStride 8
               OpMemberDecorate %block0 0 NonWritable
               OpMemberDecorate %block0 0 Offset 0
               OpDecorate %block0 BufferBlock
               OpDecorate %__0 DescriptorSet 0
               OpDecorate %__0 Binding 0
               OpDecorate %ndx_in Flat
               OpDecorate %ndx_in Location 0
               OpDecorate %modf_x_out Flat
               OpDecorate %modf_x_out Location 0
               OpDecorate %modf_i_out Flat
               OpDecorate %modf_i_out Location 1
               OpDecorate %modfStruct_x_out Flat
               OpDecorate %modfStruct_x_out Location 2
               OpDecorate %modfStruct_i_out Flat
               OpDecorate %modfStruct_i_out Location 3
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
      %float = OpTypeFloat 32
    %v2float = OpTypeVector %float 2
%_ptr_Function_v2float = OpTypePointer Function %v2float
%modfStructType = OpTypeStruct %v2float %v2float
         %10 = OpTypeFunction %modfStructType %_ptr_Function_v2float
%_ptr_Function_modfStructType = OpTypePointer Function %modfStructType
    %v4float = OpTypeVector %float 4
       %uint = OpTypeInt 32 0
     %uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
          %_ = OpVariable %_ptr_Output_gl_PerVertex Output
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
    %v3float = OpTypeVector %float 3
%_ptr_Input_v3float = OpTypePointer Input %v3float
%gl_TessCoord = OpVariable %_ptr_Input_v3float Input
     %uint_0 = OpConstant %uint 0
%_ptr_Input_float = OpTypePointer Input %float
%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1
    %uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_0_uint_32 = OpTypeArray %gl_PerVertex_0 %uint_32
%_ptr_Input__arr_gl_PerVertex_0_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_0_uint_32
      %gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_0_uint_32 Input
%_ptr_Input_v4float = OpTypePointer Input %v4float
      %int_1 = OpConstant %int 1
     %uint_2 = OpConstant %uint 2
      %int_2 = OpConstant %int 2
%_ptr_Output_v4float = OpTypePointer Output %v4float
     %v2uint = OpTypeVector %uint 2
%_ptr_Function_v2uint = OpTypePointer Function %v2uint
  %uint_1296 = OpConstant %uint 1296
%_arr_v2uint_uint_1296 = OpTypeArray %v2uint %uint_1296
     %block0 = OpTypeStruct %_arr_v2uint_uint_1296
%_ptr_Uniform_block0 = OpTypePointer Uniform %block0
        %__0 = OpVariable %_ptr_Uniform_block0 Uniform
%_arr_uint_uint_32 = OpTypeArray %uint %uint_32
%_ptr_Input__arr_uint_uint_32 = OpTypePointer Input %_arr_uint_uint_32
     %ndx_in = OpVariable %_ptr_Input__arr_uint_uint_32 Input
%_ptr_Input_uint = OpTypePointer Input %uint
%_ptr_Uniform_v2uint = OpTypePointer Uniform %v2uint
%_ptr_Output_v2float = OpTypePointer Output %v2float
 %modf_x_out = OpVariable %_ptr_Output_v2float Output
 %modf_i_out = OpVariable %_ptr_Output_v2float Output
%modfStruct_x_out = OpVariable %_ptr_Output_v2float Output
%modfStruct_i_out = OpVariable %_ptr_Output_v2float Output
       %main = OpFunction %void None %3
          %5 = OpLabel
    %in_uint = OpVariable %_ptr_Function_v2uint Function
   %in_float = OpVariable %_ptr_Function_v2float Function
        %x_0 = OpVariable %_ptr_Function_v2float Function
        %i_0 = OpVariable %_ptr_Function_v2float Function
      %res_0 = OpVariable %_ptr_Function_modfStructType Function
         %40 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_0
         %41 = OpLoad %float %40
         %48 = OpAccessChain %_ptr_Input_v4float %gl_in %int_0 %int_0
         %49 = OpLoad %v4float %48
         %50 = OpVectorTimesScalar %v4float %49 %41
         %51 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_1
         %52 = OpLoad %float %51
         %54 = OpAccessChain %_ptr_Input_v4float %gl_in %int_1 %int_0
         %55 = OpLoad %v4float %54
         %56 = OpVectorTimesScalar %v4float %55 %52
         %57 = OpFAdd %v4float %50 %56
         %59 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_2
         %60 = OpLoad %float %59
         %62 = OpAccessChain %_ptr_Input_v4float %gl_in %int_2 %int_0
         %63 = OpLoad %v4float %62
         %64 = OpVectorTimesScalar %v4float %63 %60
         %65 = OpFAdd %v4float %57 %64
         %67 = OpAccessChain %_ptr_Output_v4float %_ %int_0
               OpStore %67 %65
         %80 = OpAccessChain %_ptr_Input_uint %ndx_in %int_0
         %81 = OpLoad %uint %80
         %83 = OpAccessChain %_ptr_Uniform_v2uint %__0 %int_0 %81
         %84 = OpLoad %v2uint %83
               OpStore %in_uint %84
         %86 = OpLoad %v2uint %in_uint
         %87 = OpBitcast %v2float %86
               OpStore %in_float %87
         %89 = OpLoad %v2float %in_float
         %91 = OpExtInst %v2float %1 Modf %89 %i_0
               OpStore %x_0 %91
         %94 = OpLoad %v2float %in_float
         %95 = OpExtInst %modfStructType %1 ModfStruct %94
               OpStore %res_0 %95
         %98 = OpLoad %v2float %x_0
               OpStore %modf_x_out %98
        %100 = OpLoad %v2float %i_0
               OpStore %modf_i_out %100
        %102 = OpAccessChain %_ptr_Function_v2float %res_0 %int_0
        %103 = OpLoad %v2float %102
               OpStore %modfStruct_x_out %103
        %105 = OpAccessChain %_ptr_Function_v2float %res_0 %int_1
        %106 = OpLoad %v2float %105
               OpStore %modfStruct_i_out %106
               OpReturn
               OpFunctionEnd
END

# SHADER fragment frag_shader GLSL
# #version 430
# precision highp float;
#
# layout (location = 0) flat in vec2 modf_x_in;
# layout (location = 1) flat in vec2 modf_i_in;
# layout (location = 2) flat in vec2 modfStruct_x_in;
# layout (location = 3) flat in vec2 modfStruct_i_in;
#
# layout (location = 0) out vec4 modf_x_out;
# layout (location = 1) out vec4 modf_i_out;
# layout (location = 2) out vec4 modfStruct_x_out;
# layout (location = 3) out vec4 modfStruct_i_out;
#
# const vec4 clear_value = vec4(0.0, 0.0, 0.0, 1.0);
#
# void main ()
# {
#     modf_x_out = clear_value;
#     modf_i_out = clear_value;
#     modfStruct_x_out = clear_value;
#     modfStruct_i_out = clear_value;
#     modf_x_out.rg = modf_x_in;
#     modf_i_out.rg = modf_i_in;
#     modfStruct_x_out.rg = modfStruct_x_in;
#     modfStruct_i_out.rg = modfStruct_i_in;
# }
# END

SHADER fragment frag_shader SPIRV-ASM
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %main "main" %modf_x_out %modf_i_out %modfStruct_x_out %modfStruct_i_out %modf_x_in %modf_i_in %modfStruct_x_in %modfStruct_i_in
               OpExecutionMode %main OriginUpperLeft
               OpDecorate %modf_x_out Location 0
               OpDecorate %modf_i_out Location 1
               OpDecorate %modfStruct_x_out Location 2
               OpDecorate %modfStruct_i_out Location 3
               OpDecorate %modf_x_in Flat
               OpDecorate %modf_x_in Location 0
               OpDecorate %modf_i_in Flat
               OpDecorate %modf_i_in Location 1
               OpDecorate %modfStruct_x_in Flat
               OpDecorate %modfStruct_x_in Location 2
               OpDecorate %modfStruct_i_in Flat
               OpDecorate %modfStruct_i_in Location 3
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
      %float = OpTypeFloat 32
    %v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
 %modf_x_out = OpVariable %_ptr_Output_v4float Output
    %float_0 = OpConstant %float 0
    %float_1 = OpConstant %float 1
         %12 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_1
 %modf_i_out = OpVariable %_ptr_Output_v4float Output
%modfStruct_x_out = OpVariable %_ptr_Output_v4float Output
%modfStruct_i_out = OpVariable %_ptr_Output_v4float Output
    %v2float = OpTypeVector %float 2
%_ptr_Input_v2float = OpTypePointer Input %v2float
  %modf_x_in = OpVariable %_ptr_Input_v2float Input
  %modf_i_in = OpVariable %_ptr_Input_v2float Input
%modfStruct_x_in = OpVariable %_ptr_Input_v2float Input
%modfStruct_i_in = OpVariable %_ptr_Input_v2float Input
       %main = OpFunction %void None %3
          %5 = OpLabel
               OpStore %modf_x_out %12
               OpStore %modf_i_out %12
               OpStore %modfStruct_x_out %12
               OpStore %modfStruct_i_out %12
         %19 = OpLoad %v2float %modf_x_in
         %20 = OpLoad %v4float %modf_x_out
         %21 = OpVectorShuffle %v4float %20 %19 4 5 2 3
               OpStore %modf_x_out %21
         %23 = OpLoad %v2float %modf_i_in
         %24 = OpLoad %v4float %modf_i_out
         %25 = OpVectorShuffle %v4float %24 %23 4 5 2 3
               OpStore %modf_i_out %25
         %27 = OpLoad %v2float %modfStruct_x_in
         %28 = OpLoad %v4float %modfStruct_x_out
         %29 = OpVectorShuffle %v4float %28 %27 4 5 2 3
               OpStore %modfStruct_x_out %29
         %31 = OpLoad %v2float %modfStruct_i_in
         %32 = OpLoad %v4float %modfStruct_i_out
         %33 = OpVectorShuffle %v4float %32 %31 4 5 2 3
               OpStore %modfStruct_i_out %33
               OpReturn
               OpFunctionEnd
END

BUFFER buf_in DATA_TYPE uint32 SIZE 1296 FILE TEXT input.txt
BUFFER vertices DATA_TYPE vec2<float> SIZE 7776 FILE TEXT grid_vertices.txt

BUFFER modf_x FORMAT R32G32B32A32_SFLOAT
BUFFER modf_i FORMAT R32G32B32A32_SFLOAT
BUFFER modfStruct_x FORMAT R32G32B32A32_SFLOAT
BUFFER modfStruct_i FORMAT R32G32B32A32_SFLOAT

PIPELINE graphics test_pipeline
    FRAMEBUFFER_SIZE 144 144

    ATTACH vert_shader
    ATTACH tesc_shader
    ATTACH tese_shader
    ATTACH frag_shader

    VERTEX_DATA vertices LOCATION 0

    BIND BUFFER buf_in AS storage DESCRIPTOR_SET 0 BINDING 0
    BIND BUFFER modf_x AS color LOCATION 0
    BIND BUFFER modf_i AS color LOCATION 1
    BIND BUFFER modfStruct_x AS color LOCATION 2
    BIND BUFFER modfStruct_i AS color LOCATION 3
END

#RUN test_pipeline DRAW_GRID POS 0 0 SIZE 144 144 CELLS 144 144
RUN test_pipeline DRAW_ARRAY AS PATCH_LIST START_IDX 0 COUNT 7776

EXPECT modf_x EQ_BUFFER modfStruct_x
EXPECT modf_i EQ_BUFFER modfStruct_i