rsx/vk: Improve robustness when encountering corrupted shaders

rpcs3/Emu/RSX/Program/FragmentProgramDecompiler.cpp

@@ -868,8 +868,11 @@ std::string FragmentProgramDecompiler::BuildCode()
 	if (!m_is_valid_ucode)
 	{
 		// If the code is broken, do not compile. Simply NOP main and write empty outputs
+		m_parr.params[PF_PARAM_UNIFORM].clear();
 		insertHeader(OS);
 		OS << "\n";
+		insertConstants(OS);
+		OS << "\n";
 		OS << "void main()\n";
 		OS << "{\n";
 		OS << "#if 0\n";

rpcs3/Emu/RSX/VK/VKDraw.cpp

@@ -635,9 +635,16 @@ bool VKGSRender::bind_texture_env()
 	{
 		if (!(textures_ref & 1))
 		{
+			// Unused TIU
 			continue;
 		}
 
+		if (m_fs_binding_table->ftex_location[i] == umax)
+		{
+			// Corrupt shader table
+			break;
+		}
+
 		vk::image_view* view = nullptr;
 		auto sampler_state = static_cast<vk::texture_cache::sampled_image_descriptor*>(fs_sampler_state[i].get());
 
@@ -707,9 +714,16 @@ bool VKGSRender::bind_texture_env()
 	{
 		if (!(textures_ref & 1))
 		{
+			// Unused TIU
 			continue;
 		}
 
+		if (m_vs_binding_table->vtex_location[i] == umax)
+		{
+			// Corrupt shader
+			break;
+		}
+
 		if (!rsx::method_registers.vertex_textures[i].enabled())
 		{
 			const auto view_type = vk::get_view_type(current_vertex_program.get_texture_dimension(i));