mirror of
https://github.com/KhronosGroup/glslang
synced 2024-11-08 19:40:06 +00:00
50 lines
2.8 KiB
Plaintext
50 lines
2.8 KiB
Plaintext
#version 450 core
|
|
#pragma use_vulkan_memory_model
|
|
#extension GL_KHR_shader_subgroup_basic : enable
|
|
#extension GL_KHR_shader_subgroup_shuffle : enable
|
|
#extension GL_KHR_shader_subgroup_ballot : enable
|
|
#extension GL_KHR_memory_scope_semantics : enable
|
|
#extension GL_ARB_gpu_shader_int64 : enable
|
|
#extension GL_EXT_buffer_reference : enable
|
|
// DIM/NUM_WORKGROUP_EACH_DIM overriden by spec constants
|
|
layout(constant_id = 0) const int DIM = 1;
|
|
layout(constant_id = 1) const int NUM_WORKGROUP_EACH_DIM = 1;
|
|
shared bool sharedSkip;
|
|
layout(local_size_x_id = 0, local_size_y_id = 0, local_size_z = 1) in;
|
|
layout(buffer_reference) buffer PayloadRef { uint x[]; };
|
|
layout(buffer_reference) buffer GuardRef { uint x[]; };
|
|
layout(set=0, binding=2) buffer Fail { uint x[]; } fail;
|
|
layout (push_constant, std430) uniform PC {
|
|
layout(offset = 0) PayloadRef payloadref;
|
|
layout(offset = 8) GuardRef guard;
|
|
};
|
|
void main()
|
|
{
|
|
bool pass = true;
|
|
bool skip = false;
|
|
sharedSkip = false;
|
|
nonprivate PayloadRef payload = payloadref;
|
|
ivec2 globalId = ivec2(gl_GlobalInvocationID.xy);
|
|
ivec2 partnerGlobalId = ivec2(DIM*NUM_WORKGROUP_EACH_DIM-1) - ivec2(gl_GlobalInvocationID.xy);
|
|
uint bufferCoord = globalId.y * DIM*NUM_WORKGROUP_EACH_DIM + globalId.x;
|
|
uint partnerBufferCoord = partnerGlobalId.y * DIM*NUM_WORKGROUP_EACH_DIM + partnerGlobalId.x;
|
|
ivec2 imageCoord = globalId;
|
|
ivec2 partnerImageCoord = partnerGlobalId;
|
|
ivec2 globalId00 = ivec2(DIM) * ivec2(gl_WorkGroupID.xy);
|
|
ivec2 partnerGlobalId00 = ivec2(DIM) * (ivec2(NUM_WORKGROUP_EACH_DIM-1) - ivec2(gl_WorkGroupID.xy));
|
|
uint bufferCoord00 = globalId00.y * DIM*NUM_WORKGROUP_EACH_DIM + globalId00.x;
|
|
uint partnerBufferCoord00 = partnerGlobalId00.y * DIM*NUM_WORKGROUP_EACH_DIM + partnerGlobalId00.x;
|
|
ivec2 imageCoord00 = globalId00;
|
|
ivec2 partnerImageCoord00 = partnerGlobalId00;
|
|
payload.x[bufferCoord] = bufferCoord + (payload.x[partnerBufferCoord]>>31);
|
|
controlBarrier(gl_ScopeWorkgroup, gl_ScopeWorkgroup, gl_StorageSemanticsBuffer | gl_StorageSemanticsShared, gl_SemanticsAcquireRelease | gl_SemanticsMakeAvailable);
|
|
if (all(equal(gl_LocalInvocationID.xy, ivec2(0,0)))) {
|
|
atomicStore(guard.x[bufferCoord], uint(1u), gl_ScopeDevice, gl_StorageSemanticsBuffer, gl_SemanticsRelease | gl_SemanticsMakeAvailable);
|
|
skip = atomicLoad(guard.x[partnerBufferCoord00], gl_ScopeDevice, gl_StorageSemanticsBuffer, gl_SemanticsAcquire | gl_SemanticsMakeVisible) == 0;
|
|
sharedSkip = skip;
|
|
}
|
|
controlBarrier(gl_ScopeWorkgroup, gl_ScopeWorkgroup, gl_StorageSemanticsBuffer | gl_StorageSemanticsShared, gl_SemanticsAcquireRelease | gl_SemanticsMakeVisible);
|
|
skip = sharedSkip;
|
|
uint r = payload.x[partnerBufferCoord];
|
|
if (!skip && r != uint(partnerBufferCoord)) { fail.x[bufferCoord] = 1; }
|
|
} |