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Fix 8-bit storage nearly always using the

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UniformAndStorageBuffer8BitAccess capability.

When using the 8-bit storage extension it basically always used the
`UniformAndStorageBuffer8BitAccess` capability, even in cases where it
wasn't required. For instance if we are targeting Vulkan 1.1 (SPIR-V 1.3
or higher), and we are only using 8-bit types in an SSBO, we only need
the `StorageBuffer8BitAccess` capability.

I fixed this by enabling storage buffer use in Vulkan 1.1 / SPIR-V 1.3
or higher, and then changing the logic to match.

I also added some tests that will output different capabilities when run
on Vulkan 1.0 and 1.1, thus they are added twice to the test list (one
for each version).

Fixes #1539
This commit is contained in:
Neil Henning 2018-10-23 15:02:29 +01:00
parent a08f465d53
commit b6b01f067b
27 changed files with 404 additions and 112 deletions
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8
Test/baseResults/spv.subgroup.vert.out
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@ -19,7 +19,7 @@ spv.subgroup.vert
Name 20 "gl_SubgroupInvocationID"
Decorate 8 ArrayStride 16
MemberDecorate 9(Output) 0 Offset 0
Decorate 9(Output) BufferBlock
Decorate 9(Output) Block
Decorate 11 DescriptorSet 0
Decorate 11 Binding 0
Decorate 15(gl_VertexIndex) BuiltIn VertexIndex
@ -35,8 +35,8 @@ spv.subgroup.vert
7: TypeVector 6(int) 4
8: TypeRuntimeArray 7(ivec4)
9(Output): TypeStruct 8
10: TypePointer Uniform 9(Output)
11: 10(ptr) Variable Uniform
10: TypePointer StorageBuffer 9(Output)
11: 10(ptr) Variable StorageBuffer
12: TypeInt 32 1
13: 12(int) Constant 0
14: TypePointer Input 12(int)
@ -45,7 +45,7 @@ spv.subgroup.vert
18(gl_SubgroupSize): 17(ptr) Variable Input
20(gl_SubgroupInvocationID): 17(ptr) Variable Input
22: 6(int) Constant 0
24: TypePointer Uniform 7(ivec4)
24: TypePointer StorageBuffer 7(ivec4)
4(main): 2 Function None 3
5: Label
16: 12(int) Load 15(gl_VertexIndex)