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spirv: Support initializers on uniforms (#1588)

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If a uniform has an initializer it will now be given as the optional
initializer operand to the OpVariable instruction.

Fixes: https://github.com/KhronosGroup/glslang/issues/1259

Signed-off-by: Neil Roberts <nroberts@igalia.com> (the code)
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com> (the tests)
Signed-off-by: Arcady Goldmints-Orlov <agoldmints@igalia.com>

Co-authored-by: Neil Roberts <nroberts@igalia.com>
This commit is contained in:
Alejandro Piñeiro 2020-06-04 09:39:31 +02:00 • committed by GitHub
parent 232ba0d848
commit ff6dcca575
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8 changed files with 193 additions and 1 deletions
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Test/baseResults/spv.uniformInitializer.frag.out Normal file
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spv.uniformInitializer.frag
// Module Version 10000
// Generated by (magic number): 80008
// Id's are bound by 16
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 9
ExecutionMode 4 OriginLowerLeft
Source GLSL 450
Name 4 "main"
Name 9 "color"
Name 14 "in_color"
Decorate 9(color) Location 0
Decorate 14(in_color) Location 0
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8: TypePointer Output 7(fvec4)
9(color): 8(ptr) Variable Output
10: 6(float) Constant 0
11: 6(float) Constant 1065353216
12: 7(fvec4) ConstantComposite 10 11 10 11
13: TypePointer UniformConstant 7(fvec4)
14(in_color): 13(ptr) Variable UniformConstant 12
4(main): 2 Function None 3
5: Label
15: 7(fvec4) Load 14(in_color)
Store 9(color) 15
Return
FunctionEnd