| [require] |
| VK_KHR_spirv_1_4 |
| tessellationShader |
| |
| [vertex shader] |
| #version 450 |
| |
| layout(location = 0) in vec4 position; |
| layout(location = 1) in vec4 vert_color; |
| layout(location = 0) out vec4 tsc_color; |
| |
| void main() { |
| gl_Position = position; |
| tsc_color = vert_color; |
| } |
| |
| [tessellation control shader spirv] |
| ; Test tessellation control shader with an ssbo on the entry point. |
| ; #version 450 |
| ; #extension GL_ARB_separate_shader_objects : enable |
| ; |
| ; layout(vertices = 3) out; |
| ; |
| ; layout(location = 0) in vec4 tsc_color[]; |
| ; layout(location = 0) out vec4 tse_color[]; |
| ; |
| ; #define ID gl_InvocationID |
| ; |
| ; layout(std430, binding = 0) buffer input_buffer |
| ; { |
| ; vec4 in_val; |
| ; }; |
| ; |
| ; void main() |
| ; { |
| ; gl_out[ID].gl_Position = gl_in[ID].gl_Position; |
| ; tse_color[ID] = tsc_color[ID]+in_val; |
| ; } |
| OpCapability Tessellation |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint TessellationControl %main "main" %gl_out %gl_InvocationID %gl_in %tse_color %_ %tsc_color %gl_TessLevelInner %gl_TessLevelOuter |
| OpExecutionMode %main OutputVertices 3 |
| OpSource GLSL 450 |
| OpSourceExtension "GL_ARB_separate_shader_objects" |
| OpName %main "main" |
| OpName %gl_PerVertex "gl_PerVertex" |
| OpMemberName %gl_PerVertex 0 "gl_Position" |
| OpMemberName %gl_PerVertex 1 "gl_PointSize" |
| OpMemberName %gl_PerVertex 2 "gl_ClipDistance" |
| OpMemberName %gl_PerVertex 3 "gl_CullDistance" |
| OpName %gl_out "gl_out" |
| OpName %gl_InvocationID "gl_InvocationID" |
| OpName %gl_PerVertex_0 "gl_PerVertex" |
| OpMemberName %gl_PerVertex_0 0 "gl_Position" |
| OpMemberName %gl_PerVertex_0 1 "gl_PointSize" |
| OpMemberName %gl_PerVertex_0 2 "gl_ClipDistance" |
| OpMemberName %gl_PerVertex_0 3 "gl_CullDistance" |
| OpName %gl_in "gl_in" |
| OpName %tse_color "tse_color" |
| OpName %input_buffer "input_buffer" |
| OpMemberName %input_buffer 0 "in_val" |
| OpName %_ "" |
| OpName %tsc_color "tsc_color" |
| OpMemberDecorate %gl_PerVertex 0 BuiltIn Position |
| OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize |
| OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance |
| OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance |
| 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 |
| OpMemberDecorate %gl_PerVertex_0 3 BuiltIn CullDistance |
| OpDecorate %gl_PerVertex_0 Block |
| OpDecorate %tse_color Location 0 |
| OpMemberDecorate %input_buffer 0 Offset 0 |
| OpDecorate %input_buffer Block |
| OpDecorate %_ DescriptorSet 0 |
| OpDecorate %_ Binding 0 |
| OpDecorate %tsc_color Location 0 |
| OpDecorate %gl_TessLevelInner BuiltIn TessLevelInner |
| OpDecorate %gl_TessLevelOuter BuiltIn TessLevelOuter |
| OpDecorate %gl_TessLevelInner Patch |
| OpDecorate %gl_TessLevelOuter Patch |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %v4float = OpTypeVector %float 4 |
| %uint = OpTypeInt 32 0 |
| %uint_1 = OpConstant %uint 1 |
| %uint_2 = OpConstant %uint 2 |
| %uint_4 = OpConstant %uint 4 |
| %_arr_float_uint_1 = OpTypeArray %float %uint_1 |
| %_arr_float_uint_2 = OpTypeArray %float %uint_2 |
| %_arr_float_uint_4 = OpTypeArray %float %uint_4 |
| %float_1 = OpConstant %float 1.0 |
| %arr_2_1 = OpConstantComposite %_arr_float_uint_2 %float_1 %float_1 |
| %arr_4_1 = OpConstantComposite %_arr_float_uint_4 %float_1 %float_1 %float_1 %float_1 |
| %_ptr_Output__arr_float_uint_2 = OpTypePointer Output %_arr_float_uint_2 |
| %_ptr_Output__arr_float_uint_4 = OpTypePointer Output %_arr_float_uint_4 |
| %gl_TessLevelInner = OpVariable %_ptr_Output__arr_float_uint_2 Output %arr_2_1 |
| %gl_TessLevelOuter = OpVariable %_ptr_Output__arr_float_uint_4 Output %arr_4_1 |
| %gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_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 |
| %int = OpTypeInt 32 1 |
| %_ptr_Input_int = OpTypePointer Input %int |
| %gl_InvocationID = OpVariable %_ptr_Input_int Input |
| %int_0 = OpConstant %int 0 |
| %gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_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_v4float_uint_3 = OpTypeArray %v4float %uint_3 |
| %_ptr_Output__arr_v4float_uint_3 = OpTypePointer Output %_arr_v4float_uint_3 |
| %tse_color = OpVariable %_ptr_Output__arr_v4float_uint_3 Output |
| %input_buffer = OpTypeStruct %v4float |
| %_ptr_StorageBuffer_input_buffer = OpTypePointer StorageBuffer %input_buffer |
| %_ = OpVariable %_ptr_StorageBuffer_input_buffer StorageBuffer |
| %_ptr_StorageBuffer_v4float = OpTypePointer StorageBuffer %v4float |
| %_arr_v4float_uint_32 = OpTypeArray %v4float %uint_32 |
| %_ptr_Input__arr_v4float_uint_32 = OpTypePointer Input %_arr_v4float_uint_32 |
| %tsc_color = OpVariable %_ptr_Input__arr_v4float_uint_32 Input |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| %19 = OpLoad %int %gl_InvocationID |
| %26 = OpLoad %int %gl_InvocationID |
| %28 = OpAccessChain %_ptr_Input_v4float %gl_in %26 %int_0 |
| %29 = OpLoad %v4float %28 |
| %31 = OpAccessChain %_ptr_Output_v4float %gl_out %19 %int_0 |
| OpStore %31 %29 |
| %35 = OpLoad %int %gl_InvocationID |
| %36 = OpLoad %int %gl_InvocationID |
| %37 = OpAccessChain %_ptr_Input_v4float %tsc_color %36 |
| %38 = OpLoad %v4float %37 |
| %43 = OpAccessChain %_ptr_StorageBuffer_v4float %_ %int_0 |
| %44 = OpLoad %v4float %43 |
| %45 = OpFAdd %v4float %38 %44 |
| %46 = OpAccessChain %_ptr_Output_v4float %tse_color %35 |
| OpStore %46 %45 |
| OpReturn |
| OpFunctionEnd |
| |
| [tessellation evaluation shader] |
| #version 450 |
| #extension GL_ARB_separate_shader_objects : enable |
| |
| layout(triangles, equal_spacing, cw) in; |
| |
| layout(location = 0) in vec4 tse_color[]; |
| layout(location = 0) out vec4 frag_color; |
| |
| void main() |
| { |
| vec4 p0 = gl_TessCoord.x * gl_in[0].gl_Position; |
| vec4 p1 = gl_TessCoord.y * gl_in[1].gl_Position; |
| vec4 p2 = gl_TessCoord.z * gl_in[2].gl_Position; |
| gl_Position = p0 + p1 + p2; |
| frag_color = tse_color[0]; |
| } |
| |
| [fragment shader] |
| #version 450 |
| |
| layout(location = 0) in vec4 frag_color; |
| layout(location = 0) out vec4 final_color; |
| |
| void main() { |
| final_color = frag_color; |
| } |
| |
| [vertex data] |
| # position vert_color |
| 0/R8G8_SNORM 1/R8G8B8A8_UNORM |
| |
| # Red for entire frame |
| # R8 G8 R8 G8 B8 A8 |
| -128 -128 255 0 0 255 |
| 127 127 255 0 0 255 |
| -128 127 255 0 0 255 |
| |
| -128 -128 255 0 0 255 |
| 127 127 255 0 0 255 |
| 127 -128 255 0 0 255 |
| |
| [test] |
| ssbo 0:0 subdata float 0 0.0 0.0 0.3 0.0 |
| clear |
| draw arrays PATCH_LIST 0 6 |
| relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (1.0, 0, 0.3) |
