layers: Add fix for lx172 to catch invalid line widths.

Validate line wdith in both vkCreateGraphicsPipelines and in
vkCmdSetLineWidth.  Also, add a warning in vkCmdSetLineWidth
if the user calls it but doesn't enable dynamic line width.

Also, updated demos to fix missing lineWidth setting as well.

Change-Id: I62118da9cb5282fcc22b1506e9be2db82b5f4a40
diff --git a/tests/layer_validation_tests.cpp b/tests/layer_validation_tests.cpp
index 655a455..3f627b9 100644
--- a/tests/layer_validation_tests.cpp
+++ b/tests/layer_validation_tests.cpp
@@ -403,6 +403,7 @@
         rs_state.sType =
             VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
         rs_state.depthBiasEnable = VK_TRUE;
+        rs_state.lineWidth = 1.0f;
         pipelineobj.SetRasterization(&rs_state);
     }
     // Viewport and scissors must stay in synch or other errors will occur than
@@ -4068,6 +4069,199 @@
     vkDestroyDescriptorPool(m_device->device(), ds_pool, NULL);
 }
 
+TEST_F(VkLayerTest, PSOLineWidthInvalid) {
+    VkResult err;
+
+    m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
+                                         "Attempt to set lineWidth to 0");
+
+    ASSERT_NO_FATAL_FAILURE(InitState());
+    ASSERT_NO_FATAL_FAILURE(InitRenderTarget());
+
+    VkDescriptorPoolSize ds_type_count = {};
+    ds_type_count.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+    ds_type_count.descriptorCount = 1;
+
+    VkDescriptorPoolCreateInfo ds_pool_ci = {};
+    ds_pool_ci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
+    ds_pool_ci.maxSets = 1;
+    ds_pool_ci.poolSizeCount = 1;
+    ds_pool_ci.pPoolSizes = &ds_type_count;
+
+    VkDescriptorPool ds_pool;
+    err =
+        vkCreateDescriptorPool(m_device->device(), &ds_pool_ci, NULL, &ds_pool);
+    ASSERT_VK_SUCCESS(err);
+
+    VkDescriptorSetLayoutBinding dsl_binding = {};
+    dsl_binding.binding = 0;
+    dsl_binding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+    dsl_binding.descriptorCount = 1;
+    dsl_binding.stageFlags = VK_SHADER_STAGE_ALL;
+
+    VkDescriptorSetLayoutCreateInfo ds_layout_ci = {};
+    ds_layout_ci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+    ds_layout_ci.bindingCount = 1;
+    ds_layout_ci.pBindings = &dsl_binding;
+
+    VkDescriptorSetLayout ds_layout;
+    err = vkCreateDescriptorSetLayout(m_device->device(), &ds_layout_ci, NULL,
+                                      &ds_layout);
+    ASSERT_VK_SUCCESS(err);
+
+    VkDescriptorSet descriptorSet;
+    VkDescriptorSetAllocateInfo alloc_info = {};
+    alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
+    alloc_info.descriptorSetCount = 1;
+    alloc_info.descriptorPool = ds_pool;
+    alloc_info.pSetLayouts = &ds_layout;
+    err = vkAllocateDescriptorSets(m_device->device(), &alloc_info,
+                                   &descriptorSet);
+    ASSERT_VK_SUCCESS(err);
+
+    VkPipelineLayoutCreateInfo pipeline_layout_ci = {};
+    pipeline_layout_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
+    pipeline_layout_ci.setLayoutCount = 1;
+    pipeline_layout_ci.pSetLayouts = &ds_layout;
+
+    VkPipelineLayout pipeline_layout;
+    err = vkCreatePipelineLayout(m_device->device(), &pipeline_layout_ci, NULL,
+                                 &pipeline_layout);
+    ASSERT_VK_SUCCESS(err);
+
+    VkPipelineViewportStateCreateInfo vp_state_ci = {};
+    vp_state_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
+    vp_state_ci.scissorCount = 1;
+    vp_state_ci.pScissors = NULL;
+    vp_state_ci.viewportCount = 1;
+    vp_state_ci.pViewports = NULL;
+
+    VkDynamicState dynamic_states[3] = {VK_DYNAMIC_STATE_VIEWPORT,
+                                        VK_DYNAMIC_STATE_SCISSOR,
+                                        VK_DYNAMIC_STATE_LINE_WIDTH};
+    // Set scissor as dynamic to avoid that error
+    VkPipelineDynamicStateCreateInfo dyn_state_ci = {};
+    dyn_state_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
+    dyn_state_ci.dynamicStateCount = 2;
+    dyn_state_ci.pDynamicStates = dynamic_states;
+
+    VkPipelineShaderStageCreateInfo shaderStages[2];
+    memset(&shaderStages, 0, 2 * sizeof(VkPipelineShaderStageCreateInfo));
+
+    VkShaderObj vs(m_device, bindStateVertShaderText,
+                   VK_SHADER_STAGE_VERTEX_BIT, this);
+    VkShaderObj fs(m_device, bindStateFragShaderText,
+                   VK_SHADER_STAGE_FRAGMENT_BIT,
+                   this); // TODO - We shouldn't need a fragment shader
+                          // but add it to be able to run on more devices
+    shaderStages[0] = vs.GetStageCreateInfo();
+    shaderStages[1] = fs.GetStageCreateInfo();
+
+    VkPipelineVertexInputStateCreateInfo vi_ci = {};
+    vi_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
+    vi_ci.pNext = nullptr;
+    vi_ci.vertexBindingDescriptionCount = 0;
+    vi_ci.pVertexBindingDescriptions = nullptr;
+    vi_ci.vertexAttributeDescriptionCount = 0;
+    vi_ci.pVertexAttributeDescriptions = nullptr;
+
+    VkPipelineInputAssemblyStateCreateInfo ia_ci = {};
+    ia_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
+    ia_ci.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
+
+    VkPipelineRasterizationStateCreateInfo rs_ci = {};
+    rs_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
+    rs_ci.pNext = nullptr;
+
+    // Check too low (line width of 0.0f).
+    rs_ci.lineWidth = 0.0f;
+
+    VkPipelineColorBlendAttachmentState att = {};
+    att.blendEnable = VK_FALSE;
+    att.colorWriteMask = 0xf;
+
+    VkPipelineColorBlendStateCreateInfo cb_ci = {};
+    cb_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
+    cb_ci.pNext = nullptr;
+    cb_ci.attachmentCount = 1;
+    cb_ci.pAttachments = &att;
+
+    VkGraphicsPipelineCreateInfo gp_ci = {};
+    gp_ci.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+    gp_ci.stageCount = 2;
+    gp_ci.pStages = shaderStages;
+    gp_ci.pVertexInputState = &vi_ci;
+    gp_ci.pInputAssemblyState = &ia_ci;
+    gp_ci.pViewportState = &vp_state_ci;
+    gp_ci.pRasterizationState = &rs_ci;
+    gp_ci.pColorBlendState = &cb_ci;
+    gp_ci.pDynamicState = &dyn_state_ci;
+    gp_ci.flags = VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT;
+    gp_ci.layout = pipeline_layout;
+    gp_ci.renderPass = renderPass();
+
+    VkPipelineCacheCreateInfo pc_ci = {};
+    pc_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
+
+    VkPipeline pipeline;
+    VkPipelineCache pipelineCache;
+
+    err =
+        vkCreatePipelineCache(m_device->device(), &pc_ci, NULL, &pipelineCache);
+    ASSERT_VK_SUCCESS(err);
+    err = vkCreateGraphicsPipelines(m_device->device(), pipelineCache, 1,
+                                    &gp_ci, NULL, &pipeline);
+
+    m_errorMonitor->VerifyFound();
+
+    m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
+                                         "Attempt to set lineWidth to 65536");
+
+    // Check too high (line width of 65536.0f).
+    rs_ci.lineWidth = 65536.0f;
+
+    err =
+        vkCreatePipelineCache(m_device->device(), &pc_ci, NULL, &pipelineCache);
+    ASSERT_VK_SUCCESS(err);
+    err = vkCreateGraphicsPipelines(m_device->device(), pipelineCache, 1,
+                                    &gp_ci, NULL, &pipeline);
+
+    m_errorMonitor->VerifyFound();
+
+    m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
+                                         "Attempt to set lineWidth to 0");
+
+    dyn_state_ci.dynamicStateCount = 3;
+
+    rs_ci.lineWidth = 1.0f;
+
+    err =
+        vkCreatePipelineCache(m_device->device(), &pc_ci, NULL, &pipelineCache);
+    ASSERT_VK_SUCCESS(err);
+    err = vkCreateGraphicsPipelines(m_device->device(), pipelineCache, 1,
+                                    &gp_ci, NULL, &pipeline);
+    BeginCommandBuffer();
+    vkCmdBindPipeline(m_commandBuffer->GetBufferHandle(),
+                      VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
+
+    // Check too low with dynamic setting.
+    vkCmdSetLineWidth(m_commandBuffer->GetBufferHandle(), 0.0f);
+    m_errorMonitor->VerifyFound();
+
+    m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
+                                         "Attempt to set lineWidth to 65536");
+
+    // Check too high with dynamic setting.
+    vkCmdSetLineWidth(m_commandBuffer->GetBufferHandle(), 65536.0f);
+    m_errorMonitor->VerifyFound();
+    EndCommandBuffer();
+
+    vkDestroyPipelineCache(m_device->device(), pipelineCache, NULL);
+    vkDestroyPipelineLayout(m_device->device(), pipeline_layout, NULL);
+    vkDestroyDescriptorSetLayout(m_device->device(), ds_layout, NULL);
+    vkDestroyDescriptorPool(m_device->device(), ds_pool, NULL);
+}
+
 TEST_F(VkLayerTest, NullRenderPass) {
     // Bind a NULL RenderPass
     m_errorMonitor->SetDesiredFailureMsg(