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Add flags for local size values ( compute shader )

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Purpose :

According to GLSL SPEC 4.6 ( 4.4.1.4 Compute Shader Inputs), for compute shader input qualifiers, we should declare such qualifiers with same values in the same shader (local_size_x, y and z).
"If such a layout qualifier is declared more than once in the same shader, all those declarations must set the same set of local work-group sizes and set them to the same values; otherwise a compile-time error results."

Why this fix:

If we manually set "local_size_x = 1" and directly following a declaration like "local_size_x = 2", this would not be detected. That is because currently we treat all the '1' as default value and could not restrictly detect whether those are default values.

Test case:
......
layout(local_size_x=1) in;
layout(local_size_x=2) in;
......

So I add test cases for this fix:
1. set local_size_y = 1 => success
2. set local_size_y = 2 => error
3. set local_size_y = 1 => success
This commit is contained in:
Chow 2019-09-09 13:24:24 +08:00
parent 664ad418f8
commit 352e668a6d
5 changed files with 98 additions and 79 deletions
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3
Test/430.comp
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@ -48,6 +48,9 @@ shared vec4 s;
layout(location = 2) shared vec4 sl; // ERROR
shared float fs = 4.2; // ERROR
layout(local_size_y = 1) in;
layout(local_size_y = 2) in; // ERROR, changing
layout(local_size_y = 1) in;
layout(local_size_x = 2, local_size_y = 3, local_size_z = 4) out; // ERROR
int arrX[gl_WorkGroupSize.x];