[37/63] arb_gl_spirv: Add tests for the gl_FragCoord origin

Submitted by apinheiro on Feb. 23, 2019, 11:45 p.m.

Details

Message ID 20190223234551.21111-38-apinheiro@igalia.com
State New
Headers show
Series "ARB_gl_spirv full series" ( rev: 1 ) in Piglit

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Commit Message

apinheiro Feb. 23, 2019, 11:45 p.m.
From: Neil Roberts <nroberts@igalia.com>

Using OriginLowerLeft isn’t allowed on Vulkan but explicitly allowed
by ARB_gl_spirv so it’s probably worth testing.
---
 .../execution/origin-lower-left.shader_test   | 191 +++++++++++++++++
 .../execution/origin-upper-left.shader_test   | 192 ++++++++++++++++++
 2 files changed, 383 insertions(+)
 create mode 100644 tests/spec/arb_gl_spirv/execution/origin-lower-left.shader_test
 create mode 100644 tests/spec/arb_gl_spirv/execution/origin-upper-left.shader_test

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diff --git a/tests/spec/arb_gl_spirv/execution/origin-lower-left.shader_test b/tests/spec/arb_gl_spirv/execution/origin-lower-left.shader_test
new file mode 100644
index 000000000..4dc15256d
--- /dev/null
+++ b/tests/spec/arb_gl_spirv/execution/origin-lower-left.shader_test
@@ -0,0 +1,191 @@ 
+# Tests that OriginLowerLeft works. This isn’t allowed on Vulkan but
+# is explicitly allowed on ARB_gl_spirv so it’s probably worth
+# testing.
+
+[require]
+SPIRV YES
+GL >= 3.3
+GLSL >= 4.5
+GL_ARB_gl_spirv
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 6
+; Bound: 26
+; Schema: 0
+               OpCapability Shader
+          %1 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %main "main" %_ %pos_in %pos_out %gl_VertexID %gl_InstanceID
+               OpSource GLSL 450
+               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 %_ ""
+               OpName %pos_in "pos_in"
+               OpName %pos_out "pos_out"
+               OpName %gl_VertexID "gl_VertexID"
+               OpName %gl_InstanceID "gl_InstanceID"
+               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 %pos_in Location 0
+               OpDecorate %pos_out Location 0
+               OpDecorate %gl_VertexID BuiltIn VertexId
+               OpDecorate %gl_InstanceID BuiltIn InstanceId
+       %void = OpTypeVoid
+          %3 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+    %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 %_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
+%_ptr_Input_v4float = OpTypePointer Input %v4float
+     %pos_in = OpVariable %_ptr_Input_v4float Input
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+    %pos_out = OpVariable %_ptr_Output_v4float Output
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+       %main = OpFunction %void None %3
+          %5 = OpLabel
+         %18 = OpLoad %v4float %pos_in
+         %20 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+               OpStore %20 %18
+         %22 = OpLoad %v4float %pos_in
+               OpStore %pos_out %22
+               OpReturn
+               OpFunctionEnd
+
+[vertex shader]
+#version 450
+
+layout(location = 0) in vec4 pos_in;
+layout(location = 0) out vec4 pos_out;
+
+void
+main()
+{
+        gl_Position = pos_in;
+        pos_out = pos_in;
+}
+
+[fragment shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 6
+; Bound: 51
+; Schema: 0
+               OpCapability Shader
+          %1 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main" %gl_FragCoord %pos_in %color_out
+               OpExecutionMode %main OriginLowerLeft
+               OpSource GLSL 450
+               OpName %main "main"
+               OpName %frag_coord "frag_coord"
+               OpName %gl_FragCoord "gl_FragCoord"
+               OpName %pos_in "pos_in"
+               OpName %color_out "color_out"
+               OpDecorate %gl_FragCoord BuiltIn FragCoord
+               OpDecorate %pos_in Location 0
+               OpDecorate %color_out Location 0
+       %void = OpTypeVoid
+          %3 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+    %v2float = OpTypeVector %float 2
+%_ptr_Function_v2float = OpTypePointer Function %v2float
+    %v4float = OpTypeVector %float 4
+%_ptr_Input_v4float = OpTypePointer Input %v4float
+%gl_FragCoord = OpVariable %_ptr_Input_v4float Input
+  %float_125 = OpConstant %float 125
+       %bool = OpTypeBool
+     %pos_in = OpVariable %_ptr_Input_v4float Input
+       %uint = OpTypeInt 32 0
+     %uint_0 = OpConstant %uint 0
+%_ptr_Input_float = OpTypePointer Input %float
+%_ptr_Function_float = OpTypePointer Function %float
+     %uint_1 = OpConstant %uint 1
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+  %color_out = OpVariable %_ptr_Output_v4float Output
+    %float_0 = OpConstant %float 0
+    %float_1 = OpConstant %float 1
+         %48 = OpConstantComposite %v4float %float_0 %float_1 %float_0 %float_1
+         %50 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
+       %main = OpFunction %void None %3
+          %5 = OpLabel
+ %frag_coord = OpVariable %_ptr_Function_v2float Function
+         %13 = OpLoad %v4float %gl_FragCoord
+         %14 = OpVectorShuffle %v2float %13 %13 0 1
+         %16 = OpCompositeConstruct %v2float %float_125 %float_125
+         %17 = OpFSub %v2float %14 %16
+               OpStore %frag_coord %17
+         %23 = OpAccessChain %_ptr_Input_float %pos_in %uint_0
+         %24 = OpLoad %float %23
+         %25 = OpExtInst %float %1 FSign %24
+         %27 = OpAccessChain %_ptr_Function_float %frag_coord %uint_0
+         %28 = OpLoad %float %27
+         %29 = OpExtInst %float %1 FSign %28
+         %30 = OpFOrdEqual %bool %25 %29
+               OpSelectionMerge %32 None
+               OpBranchConditional %30 %31 %32
+         %31 = OpLabel
+         %34 = OpAccessChain %_ptr_Input_float %pos_in %uint_1
+         %35 = OpLoad %float %34
+         %36 = OpExtInst %float %1 FSign %35
+         %37 = OpAccessChain %_ptr_Function_float %frag_coord %uint_1
+         %38 = OpLoad %float %37
+         %39 = OpExtInst %float %1 FSign %38
+         %40 = OpFOrdEqual %bool %36 %39
+               OpBranch %32
+         %32 = OpLabel
+         %41 = OpPhi %bool %30 %5 %40 %31
+               OpSelectionMerge %43 None
+               OpBranchConditional %41 %42 %49
+         %42 = OpLabel
+               OpStore %color_out %48
+               OpBranch %43
+         %49 = OpLabel
+               OpStore %color_out %50
+               OpBranch %43
+         %43 = OpLabel
+               OpReturn
+               OpFunctionEnd
+
+[fragment shader]
+#version 450
+
+layout(location = 0) in vec4 pos_in;
+layout(location = 0) out vec4 color_out;
+
+void
+main()
+{
+        vec2 frag_coord = gl_FragCoord.xy - 125.0;
+
+        if (sign(pos_in.x) == sign(frag_coord.x) &&
+            sign(pos_in.y) == sign(frag_coord.y))
+                color_out = vec4(0.0, 1.0, 0.0, 1.0);
+        else
+                color_out = vec4(1.0, 0.0, 0.0, 1.0);
+}
+
+[test]
+clear color 0.8 0.0 0.0 0.0
+clear
+
+draw rect -1 -1 2 2
+probe all rgba 0.0 1.0 0.0 1.0
diff --git a/tests/spec/arb_gl_spirv/execution/origin-upper-left.shader_test b/tests/spec/arb_gl_spirv/execution/origin-upper-left.shader_test
new file mode 100644
index 000000000..8af814d1a
--- /dev/null
+++ b/tests/spec/arb_gl_spirv/execution/origin-upper-left.shader_test
@@ -0,0 +1,192 @@ 
+# Tests that OriginUpperLeft works.
+
+[require]
+SPIRV YES
+GL >= 3.3
+GLSL >= 4.5
+GL_ARB_gl_spirv
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 6
+; Bound: 26
+; Schema: 0
+               OpCapability Shader
+          %1 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %main "main" %_ %pos_in %pos_out %gl_VertexID %gl_InstanceID
+               OpSource GLSL 450
+               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 %_ ""
+               OpName %pos_in "pos_in"
+               OpName %pos_out "pos_out"
+               OpName %gl_VertexID "gl_VertexID"
+               OpName %gl_InstanceID "gl_InstanceID"
+               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 %pos_in Location 0
+               OpDecorate %pos_out Location 0
+               OpDecorate %gl_VertexID BuiltIn VertexId
+               OpDecorate %gl_InstanceID BuiltIn InstanceId
+       %void = OpTypeVoid
+          %3 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+    %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 %_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
+%_ptr_Input_v4float = OpTypePointer Input %v4float
+     %pos_in = OpVariable %_ptr_Input_v4float Input
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+    %pos_out = OpVariable %_ptr_Output_v4float Output
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+       %main = OpFunction %void None %3
+          %5 = OpLabel
+         %18 = OpLoad %v4float %pos_in
+         %20 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+               OpStore %20 %18
+         %22 = OpLoad %v4float %pos_in
+               OpStore %pos_out %22
+               OpReturn
+               OpFunctionEnd
+
+[vertex shader]
+#version 450
+
+layout(location = 0) in vec4 pos_in;
+layout(location = 0) out vec4 pos_out;
+
+void
+main()
+{
+        gl_Position = pos_in;
+        pos_out = pos_in;
+}
+
+[fragment shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 6
+; Bound: 52
+; Schema: 0
+               OpCapability Shader
+          %1 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main" %gl_FragCoord %pos_in %color_out
+               OpExecutionMode %main OriginUpperLeft
+               OpSource GLSL 450
+               OpName %main "main"
+               OpName %frag_coord "frag_coord"
+               OpName %gl_FragCoord "gl_FragCoord"
+               OpName %pos_in "pos_in"
+               OpName %color_out "color_out"
+               OpDecorate %gl_FragCoord BuiltIn FragCoord
+               OpDecorate %pos_in Location 0
+               OpDecorate %color_out Location 0
+       %void = OpTypeVoid
+          %3 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+    %v2float = OpTypeVector %float 2
+%_ptr_Function_v2float = OpTypePointer Function %v2float
+    %v4float = OpTypeVector %float 4
+%_ptr_Input_v4float = OpTypePointer Input %v4float
+%gl_FragCoord = OpVariable %_ptr_Input_v4float Input
+  %float_125 = OpConstant %float 125
+       %bool = OpTypeBool
+     %pos_in = OpVariable %_ptr_Input_v4float Input
+       %uint = OpTypeInt 32 0
+     %uint_0 = OpConstant %uint 0
+%_ptr_Input_float = OpTypePointer Input %float
+%_ptr_Function_float = OpTypePointer Function %float
+     %uint_1 = OpConstant %uint 1
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+  %color_out = OpVariable %_ptr_Output_v4float Output
+    %float_0 = OpConstant %float 0
+    %float_1 = OpConstant %float 1
+         %49 = OpConstantComposite %v4float %float_0 %float_1 %float_0 %float_1
+         %51 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
+       %main = OpFunction %void None %3
+          %5 = OpLabel
+ %frag_coord = OpVariable %_ptr_Function_v2float Function
+         %13 = OpLoad %v4float %gl_FragCoord
+         %14 = OpVectorShuffle %v2float %13 %13 0 1
+         %16 = OpCompositeConstruct %v2float %float_125 %float_125
+         %17 = OpFSub %v2float %14 %16
+               OpStore %frag_coord %17
+         %23 = OpAccessChain %_ptr_Input_float %pos_in %uint_0
+         %24 = OpLoad %float %23
+         %25 = OpExtInst %float %1 FSign %24
+         %27 = OpAccessChain %_ptr_Function_float %frag_coord %uint_0
+         %28 = OpLoad %float %27
+         %29 = OpExtInst %float %1 FSign %28
+         %30 = OpFOrdEqual %bool %25 %29
+               OpSelectionMerge %32 None
+               OpBranchConditional %30 %31 %32
+         %31 = OpLabel
+         %34 = OpAccessChain %_ptr_Input_float %pos_in %uint_1
+         %35 = OpLoad %float %34
+         %36 = OpExtInst %float %1 FSign %35
+         %37 = OpAccessChain %_ptr_Function_float %frag_coord %uint_1
+         %38 = OpLoad %float %37
+         %39 = OpExtInst %float %1 FSign %38
+         %40 = OpFNegate %float %39
+         %41 = OpFOrdEqual %bool %36 %40
+               OpBranch %32
+         %32 = OpLabel
+         %42 = OpPhi %bool %30 %5 %41 %31
+               OpSelectionMerge %44 None
+               OpBranchConditional %42 %43 %50
+         %43 = OpLabel
+               OpStore %color_out %49
+               OpBranch %44
+         %50 = OpLabel
+               OpStore %color_out %51
+               OpBranch %44
+         %44 = OpLabel
+               OpReturn
+               OpFunctionEnd
+
+[fragment shader]
+#version 450
+
+layout(origin_upper_left) in vec4 gl_FragCoord;
+
+layout(location = 0) in vec4 pos_in;
+layout(location = 0) out vec4 color_out;
+
+void
+main()
+{
+        vec2 frag_coord = gl_FragCoord.xy - 125.0;
+
+        if (sign(pos_in.x) == sign(frag_coord.x) &&
+            sign(pos_in.y) == -sign(frag_coord.y))
+                color_out = vec4(0.0, 1.0, 0.0, 1.0);
+        else
+                color_out = vec4(1.0, 0.0, 0.0, 1.0);
+}
+
+[test]
+clear color 0.8 0.0 0.0 0.0
+clear
+
+draw rect -1 -1 2 2
+probe all rgba 0.0 1.0 0.0 1.0