Merge pull request #1388 from KhronosGroup/uint-sparse-residency-query

GLSL: Support uint code for sparse residency query.

reference/shaders-no-opt/asm/frag/sparse-texture-feedback-uint-code.asm.desktop.frag

@@ -0,0 +1,23 @@
+#version 450
+#extension GL_ARB_sparse_texture2 : require
+
+struct ResType
+{
+    uint _m0;
+    vec4 _m1;
+};
+
+layout(binding = 0) uniform sampler2D uSamp;
+
+layout(location = 0) in vec2 vUV;
+
+void main()
+{
+    uint _30;
+    vec4 _31;
+    _30 = sparseTextureARB(uSamp, vUV, _31);
+    ResType _26 = ResType(_30, _31);
+    vec4 texel = _26._m1;
+    bool ret = sparseTexelsResidentARB(int(_26._m0));
+}
+

shaders-no-opt/asm/frag/sparse-texture-feedback-uint-code.asm.desktop.frag

@@ -0,0 +1,57 @@
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 8
+; Bound: 30
+; Schema: 0
+               OpCapability Shader
+               OpCapability SparseResidency
+          %1 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main" %vUV %FragColor
+               OpExecutionMode %main OriginUpperLeft
+               OpSource GLSL 450
+               OpSourceExtension "GL_ARB_sparse_texture2"
+               OpSourceExtension "GL_ARB_sparse_texture_clamp"
+               OpName %main "main"
+               OpName %ret "ret"
+               OpName %uSamp "uSamp"
+               OpName %vUV "vUV"
+               OpName %texel "texel"
+               OpName %ResType "ResType"
+               OpName %FragColor "FragColor"
+               OpDecorate %uSamp DescriptorSet 0
+               OpDecorate %uSamp Binding 0
+               OpDecorate %vUV Location 0
+               OpDecorate %FragColor Location 0
+       %void = OpTypeVoid
+          %3 = OpTypeFunction %void
+       %bool = OpTypeBool
+%_ptr_Function_bool = OpTypePointer Function %bool
+      %float = OpTypeFloat 32
+         %10 = OpTypeImage %float 2D 0 0 0 1 Unknown
+         %11 = OpTypeSampledImage %10
+%_ptr_UniformConstant_11 = OpTypePointer UniformConstant %11
+      %uSamp = OpVariable %_ptr_UniformConstant_11 UniformConstant
+    %v2float = OpTypeVector %float 2
+%_ptr_Input_v2float = OpTypePointer Input %v2float
+        %vUV = OpVariable %_ptr_Input_v2float Input
+    %v4float = OpTypeVector %float 4
+%_ptr_Function_v4float = OpTypePointer Function %v4float
+        %uint = OpTypeInt 32 0
+    %ResType = OpTypeStruct %uint %v4float
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+  %FragColor = OpVariable %_ptr_Output_v4float Output
+       %main = OpFunction %void None %3
+          %5 = OpLabel
+        %ret = OpVariable %_ptr_Function_bool Function
+      %texel = OpVariable %_ptr_Function_v4float Function
+         %14 = OpLoad %11 %uSamp
+         %18 = OpLoad %v2float %vUV
+         %24 = OpImageSparseSampleImplicitLod %ResType %14 %18
+         %25 = OpCompositeExtract %v4float %24 1
+               OpStore %texel %25
+         %26 = OpCompositeExtract %uint %24 0
+         %27 = OpImageSparseTexelsResident %bool %26
+               OpStore %ret %27
+               OpReturn
+               OpFunctionEnd

spirv_glsl.cpp

@@ -10217,7 +10217,7 @@ void CompilerGLSL::emit_instruction(const Instruction &instruction)
 		if (options.es)
 			SPIRV_CROSS_THROW("Sparse feedback is not supported in GLSL.");
 		require_extension_internal("GL_ARB_sparse_texture2");
-		GLSL_UFOP(sparseTexelsResidentARB);
+		emit_unary_func_op_cast(ops[0], ops[1], ops[2], "sparseTexelsResidentARB", int_type, SPIRType::Boolean);
 		break;
 
 	case OpImage: