shader: resolve packed buffer selectors with shared indexed stores

Co-authored-by: Ali Almohaya <AliAlmohaya@gmail.com>

src/graphics/shader/recompiler/backend/spirv/spirvEmitterInternal.h

@@ -398,6 +398,8 @@ uint32_t StorageBufferPackedStride(const EmitterState& state, const IR::MemoryIn
 
 Prospero::BufferFormat StorageBufferFormat(const EmitterState& state, const IR::MemoryInfo& mem);
 
+bool UsesSharedIndirectBufferStore(const EmitterState& state, uint32_t resource);
+
 void EmitMemoryOffsets(EmitterState& state);
 
 uint32_t LdsDwordCount(const EmitterState& state);
@@ -409,6 +411,7 @@ struct MemoryResourceAccess {
 	uint32_t              length           = 0;
 	uint32_t              byte_offset      = 0;
 	uint32_t              element_bits     = 32;
+	bool                  non_uniform      = false;
 	spv::MemoryAccessMask memory_access    = spv::MemoryAccessMaskNone;
 };
 
@@ -418,7 +421,8 @@ MemoryResourceAccess PrepareMemoryResourceAccess(EmitterState& state, const IR::
 
 MemoryResourceAccess PrepareStorageBufferResourceAccess(EmitterState&         state,
                                                         const IR::MemoryInfo& mem,
-                                                        BufferDefinition& buffer);
+                                                        BufferDefinition& buffer,
+                                                        uint32_t array_index = 0);
 
 uint32_t EmitMemoryElementInBounds(EmitterState& state, const MemoryResourceAccess& access,
                                    uint32_t index);