//Destroyer
VulkanBase::~VulkanBase() {
// Wait until all operations are complete to destroy stuff
CHECK_RESULT(vkQueueWaitIdle(queue));
swapchain.clean();
//vkFreeCommandBuffers(device, commandPool, commandBuffersVector.size(), commandBuffersVector.data());
vkDestroyCommandPool(device, commandPool, nullptr);
// Destroy synchronization elements
vkDestroySemaphore(device, imageAcquiredSemaphore, nullptr);
vkDestroySemaphore(device, renderingCompletedSemaphore, nullptr);
vkDestroyFence(device, presentFence, nullptr);
// Destroy logical device
vkDestroyDevice(device, nullptr);
#ifdef _DEBUG
if (enableValidation) {
vkDebug::freeDebugCallback(instance);
}
#endif // _DEBUG
vkDestroyInstance(instance,nullptr);
}
/**
* Finish command buffer recording and submit it to a queue
*
* @param commandBuffer Command buffer to flush
* @param queue Queue to submit the command buffer to
* @param free (Optional) Free the command buffer once it has been submitted (Defaults to true)
*
* @note The queue that the command buffer is submitted to must be from the same family index as the pool it was allocated from
* @note Uses a fence to ensure command buffer has finished executing
*/
void flushCommandBuffer(VkCommandBuffer commandBuffer, VkQueue queue, bool free = true)
{
if (commandBuffer == VK_NULL_HANDLE)
{
return;
}
VK_CHECK_RESULT(vkEndCommandBuffer(commandBuffer));
VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
// Create fence to ensure that the command buffer has finished executing
VkFenceCreateInfo fenceInfo = vkTools::initializers::fenceCreateInfo(VK_FLAGS_NONE);
VkFence fence;
VK_CHECK_RESULT(vkCreateFence(logicalDevice, &fenceInfo, nullptr, &fence));
// Submit to the queue
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, fence));
// Wait for the fence to signal that command buffer has finished executing
VK_CHECK_RESULT(vkWaitForFences(logicalDevice, 1, &fence, VK_TRUE, DEFAULT_FENCE_TIMEOUT));
vkDestroyFence(logicalDevice, fence, nullptr);
if (free)
{
vkFreeCommandBuffers(logicalDevice, commandPool, 1, &commandBuffer);
}
}
void CommandBufferManager::DestroyCommandBuffers()
{
VkDevice device = g_vulkan_context->GetDevice();
for (FrameResources& resources : m_frame_resources)
{
// The Vulkan spec section 5.2 says: "When a pool is destroyed, all command buffers allocated
// from the pool are freed.". So we don't need to free the command buffers, just the pools.
// We destroy the command pool first, to avoid any warnings from the validation layers about
// objects which are pending destruction being in-use.
if (resources.command_pool != VK_NULL_HANDLE)
vkDestroyCommandPool(device, resources.command_pool, nullptr);
// Destroy any pending objects.
for (auto& it : resources.cleanup_resources)
it();
if (resources.semaphore != VK_NULL_HANDLE)
vkDestroySemaphore(device, resources.semaphore, nullptr);
if (resources.fence != VK_NULL_HANDLE)
vkDestroyFence(device, resources.fence, nullptr);
if (resources.descriptor_pool != VK_NULL_HANDLE)
vkDestroyDescriptorPool(device, resources.descriptor_pool, nullptr);
}
vkDestroySemaphore(device, m_present_semaphore, nullptr);
}
void executeQueue( VkCommandBuffer cmd )
{
const VkCommandBuffer cmds[] = { cmd };
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = nullptr;
fenceInfo.flags = 0;
vkCreateFence( gDevice, &fenceInfo, nullptr, &drawFence );
VkPipelineStageFlags pipeStageFlags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submitInfo[1] = {};
submitInfo[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo[0].pNext = nullptr;
submitInfo[0].waitSemaphoreCount = 0;
submitInfo[0].pWaitSemaphores = nullptr;
submitInfo[0].pWaitDstStageMask = &pipeStageFlags;
submitInfo[0].commandBufferCount = 1;
submitInfo[0].pCommandBuffers = cmds;
submitInfo[0].signalSemaphoreCount = 0;
submitInfo[0].pSignalSemaphores = nullptr;
HR( vkQueueSubmit( gQueue, 1, submitInfo, drawFence ) );
VkResult res;
do {
res = vkWaitForFences( gDevice, 1, &drawFence, VK_TRUE, 100000000 );
} while( res == VK_TIMEOUT );
vkDestroyFence( gDevice, drawFence, nullptr );
}
void CommandBufferManager::DestroyCommandBuffers()
{
VkDevice device = g_vulkan_context->GetDevice();
for (FrameResources& resources : m_frame_resources)
{
for (auto& it : resources.cleanup_resources)
it();
resources.cleanup_resources.clear();
if (resources.fence != VK_NULL_HANDLE)
{
vkDestroyFence(device, resources.fence, nullptr);
resources.fence = VK_NULL_HANDLE;
}
if (resources.descriptor_pool != VK_NULL_HANDLE)
{
vkDestroyDescriptorPool(device, resources.descriptor_pool, nullptr);
resources.descriptor_pool = VK_NULL_HANDLE;
}
if (resources.command_buffers[0] != VK_NULL_HANDLE)
{
vkFreeCommandBuffers(device, resources.command_pool,
static_cast<u32>(resources.command_buffers.size()),
resources.command_buffers.data());
resources.command_buffers.fill(VK_NULL_HANDLE);
}
if (resources.command_pool != VK_NULL_HANDLE)
{
vkDestroyCommandPool(device, resources.command_pool, nullptr);
resources.command_pool = VK_NULL_HANDLE;
}
}
}
static void cleanup_vulkan()
{
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
{
vkDestroyFence(g_Device, g_Fence[i], g_Allocator);
vkFreeCommandBuffers(g_Device, g_CommandPool[i], 1, &g_CommandBuffer[i]);
vkDestroyCommandPool(g_Device, g_CommandPool[i], g_Allocator);
vkDestroySemaphore(g_Device, g_PresentCompleteSemaphore[i], g_Allocator);
vkDestroySemaphore(g_Device, g_RenderCompleteSemaphore[i], g_Allocator);
}
for (uint32_t i = 0; i < g_BackBufferCount; i++)
{
vkDestroyImageView(g_Device, g_BackBufferView[i], g_Allocator);
vkDestroyFramebuffer(g_Device, g_Framebuffer[i], g_Allocator);
}
vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
vkDestroySwapchainKHR(g_Device, g_Swapchain, g_Allocator);
vkDestroySurfaceKHR(g_Instance, g_Surface, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT
// get the proc address of the function pointer, required for used extensions
auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
vkDestroyDebugReportCallbackEXT(g_Instance, g_Debug_Report, g_Allocator);
#endif // IMGUI_VULKAN_DEBUG_REPORT
vkDestroyDevice(g_Device, g_Allocator);
vkDestroyInstance(g_Instance, g_Allocator);
}
void
VKDevice::destroy_fence (VkFence fence)
{
XCAM_ASSERT (XCAM_IS_VALID_VK_ID (_dev_id));
XCAM_ASSERT (XCAM_IS_VALID_VK_ID (fence));
vkDestroyFence (_dev_id, fence, _allocator.ptr ());
}
Fence::~Fence() {
Isolate* isolate = Isolate::GetCurrent();
HandleScope handle_scope(isolate);
puts("Fence::~Fence()");
Device *hDevice = ObjectWrap::Unwrap<Device>(device.Get(isolate));
vkDestroyFence(hDevice->device, fence, nullptr);
}
void tut7_render_cleanup_essentials(struct tut7_render_essentials *essentials, struct tut2_device *dev)
{
vkDeviceWaitIdle(dev->device);
vkDestroySemaphore(dev->device, essentials->sem_post_acquire, NULL);
vkDestroySemaphore(dev->device, essentials->sem_pre_submit, NULL);
vkDestroyFence(dev->device, essentials->exec_fence, NULL);
free(essentials->images);
}
void Fence::destroy()
{
if (fence)
{
vkDestroyFence(device, fence, nullptr);
fence = VK_NULL_HANDLE;
}
}
/*!
* \brief Finishes initializing all previously recorded objects
*
* Submits internal vulkan command buffer
*/
bool rSceneBase::endInitObject() {
if ( !vInitializingObjects ) {
eLOG( "beginInitObject was NOT called on secene ", vName_str );
return false;
}
vkEndCommandBuffer( vInitBuff_vk );
VkSubmitInfo lInfo = {};
lInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
lInfo.pNext = nullptr;
lInfo.waitSemaphoreCount = 0;
lInfo.pWaitSemaphores = nullptr;
lInfo.pWaitDstStageMask = nullptr;
lInfo.commandBufferCount = 1;
lInfo.pCommandBuffers = &vInitBuff_vk;
lInfo.signalSemaphoreCount = 0;
lInfo.pSignalSemaphores = nullptr;
auto lFence = vWorldPtr->createFence();
VkResult lRes;
{
std::lock_guard<std::mutex> lLock( vWorldPtr->getInitPtr()->getQueueMutex( vInitQueue_vk ) );
lRes = vkQueueSubmit( vInitQueue_vk, 1, &lInfo, lFence );
}
if ( lRes ) {
eLOG( "'vkQueueSubmit' returned ", uEnum2Str::toStr( lRes ) );
vInitObjs.clear();
vObjectsInit_MUT.unlock();
return false;
}
lRes = vkWaitForFences( vWorldPtr->getDevice(), 1, &lFence, VK_TRUE, UINT64_MAX );
if ( lRes ) {
eLOG( "'vkQueueSubmit' returned ", uEnum2Str::toStr( lRes ) );
}
for ( auto &i : vInitObjs )
i->finishData();
vkDestroyFence( vWorldPtr->getDevice(), lFence, nullptr );
vkFreeCommandBuffers( vWorldPtr->getDevice(), vInitPool_vk, 1, &vInitBuff_vk );
vInitObjs.clear();
vInitializingObjects = false;
vObjectsInit_MUT.unlock();
return true;
}
/** Destroys the underlying Vulkan Fence instance. */
void Anvil::Fence::release_fence()
{
if (m_fence != VK_NULL_HANDLE)
{
lock();
{
vkDestroyFence(m_device_ptr->get_device_vk(),
m_fence,
nullptr /* pAllocator */);
}
unlock();
m_fence = VK_NULL_HANDLE;
}
}
void reset_fence(VkFence *pFence)
{
if (g_drv_disable_fence_reset)
{
vkDestroyFence(*g_current_renderer, *pFence, nullptr);
VkFenceCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
CHECK_RESULT(vkCreateFence(*g_current_renderer, &info, nullptr, pFence));
}
else
{
CHECK_RESULT(vkResetFences(*g_current_renderer, 1, pFence));
}
}
VulkanRenderManager::~VulkanRenderManager() {
ILOG("VulkanRenderManager destructor");
StopThread();
vulkan_->WaitUntilQueueIdle();
VkDevice device = vulkan_->GetDevice();
vkDestroySemaphore(device, acquireSemaphore_, nullptr);
vkDestroySemaphore(device, renderingCompleteSemaphore_, nullptr);
for (int i = 0; i < vulkan_->GetInflightFrames(); i++) {
VkCommandBuffer cmdBuf[2]{ frameData_[i].mainCmd, frameData_[i].initCmd };
vkFreeCommandBuffers(device, frameData_[i].cmdPoolInit, 1, &frameData_[i].initCmd);
vkFreeCommandBuffers(device, frameData_[i].cmdPoolMain, 1, &frameData_[i].mainCmd);
vkDestroyCommandPool(device, frameData_[i].cmdPoolInit, nullptr);
vkDestroyCommandPool(device, frameData_[i].cmdPoolMain, nullptr);
vkDestroyFence(device, frameData_[i].fence, nullptr);
}
queueRunner_.DestroyDeviceObjects();
}
/**
* Default destructor, frees up all Vulkan resources acquired by the text overlay
*/
~VulkanTextOverlay()
{
// Free up all Vulkan resources requested by the text overlay
vertexBuffer.destroy();
vkDestroySampler(vulkanDevice->logicalDevice, sampler, nullptr);
vkDestroyImage(vulkanDevice->logicalDevice, image, nullptr);
vkDestroyImageView(vulkanDevice->logicalDevice, view, nullptr);
vkFreeMemory(vulkanDevice->logicalDevice, imageMemory, nullptr);
vkDestroyDescriptorSetLayout(vulkanDevice->logicalDevice, descriptorSetLayout, nullptr);
vkDestroyDescriptorPool(vulkanDevice->logicalDevice, descriptorPool, nullptr);
vkDestroyPipelineLayout(vulkanDevice->logicalDevice, pipelineLayout, nullptr);
vkDestroyPipelineCache(vulkanDevice->logicalDevice, pipelineCache, nullptr);
vkDestroyPipeline(vulkanDevice->logicalDevice, pipeline, nullptr);
vkDestroyRenderPass(vulkanDevice->logicalDevice, renderPass, nullptr);
vkFreeCommandBuffers(vulkanDevice->logicalDevice, commandPool, static_cast<uint32_t>(cmdBuffers.size()), cmdBuffers.data());
vkDestroyCommandPool(vulkanDevice->logicalDevice, commandPool, nullptr);
vkDestroyFence(vulkanDevice->logicalDevice, fence, nullptr);
}
void flushCommandBuffer(VkCommandBuffer commandBuffer)
{
assert(commandBuffer != VK_NULL_HANDLE);
VK_CHECK_RESULT(vkEndCommandBuffer(commandBuffer));
VkSubmitInfo submitInfo = {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
VkFenceCreateInfo fenceCreateInfo = {};
fenceCreateInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceCreateInfo.flags = 0;
VkFence fence;
VK_CHECK_RESULT(vkCreateFence(device, &fenceCreateInfo, nullptr, &fence));
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, fence));
VK_CHECK_RESULT(vkWaitForFences(device, 1, &fence, VK_TRUE, DEFAULT_FENCE_TIMEOUT));
vkDestroyFence(device, fence, nullptr);
vkFreeCommandBuffers(device, cmdPool, 1, &commandBuffer);
}
~gl_450_draw()
{
vkDestroyPipeline(device, pipeline, nullptr);
vkDestroyBuffer(device, vertices.buffer, nullptr);
vkFreeMemory(device, vertices.memory, nullptr);
vkDestroyBuffer(device, indices.buffer, nullptr);
vkFreeMemory(device, indices.memory, nullptr);
vkDestroyBuffer(device, uniformDataVS.buffer, nullptr);
vkFreeMemory(device, uniformDataVS.memory, nullptr);
vkDestroySemaphore(device, presentCompleteSemaphore, nullptr);
vkDestroySemaphore(device, renderCompleteSemaphore, nullptr);
for (auto& fence : waitFences)
{
vkDestroyFence(device, fence, nullptr);
}
wglDeleteContextGTC(this->Context);
}
~VulkanExample()
{
// Clean up used Vulkan resources
// Note : Inherited destructor cleans up resources stored in base class
vkDestroyPipeline(device, pipelines.phong, nullptr);
vkDestroyPipeline(device, pipelines.starsphere, nullptr);
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkFreeCommandBuffers(device, cmdPool, 1, &primaryCommandBuffer);
vkFreeCommandBuffers(device, cmdPool, 1, &secondaryCommandBuffer);
vkMeshLoader::freeMeshBufferResources(device, &meshes.ufo);
vkMeshLoader::freeMeshBufferResources(device, &meshes.skysphere);
for (auto& thread : threadData)
{
vkFreeCommandBuffers(device, thread.commandPool, thread.commandBuffer.size(), thread.commandBuffer.data());
vkDestroyCommandPool(device, thread.commandPool, nullptr);
}
vkDestroyFence(device, renderFence, nullptr);
}
IFenceSP VKTS_APIENTRY fenceCreate(const VkDevice device, const VkFenceCreateFlags flags)
{
if (!device)
{
return IFenceSP();
}
VkResult result;
VkFenceCreateInfo fenceCreateInfo{};
fenceCreateInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceCreateInfo.flags = flags;
VkFence fence;
result = vkCreateFence(device, &fenceCreateInfo, nullptr, &fence);
if (result != VK_SUCCESS)
{
logPrint(VKTS_LOG_ERROR, __FILE__, __LINE__, "Could not create fence.");
return IFenceSP();
}
auto newInstance = new Fence(device, flags, fence);
if (!newInstance)
{
vkDestroyFence(device, fence, nullptr);
return IFenceSP();
}
return IFenceSP(newInstance);
}
namespace Vulkan {
Fence::Fence(Device* device) : Devicer(device) {
createInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
}
Fence::~Fence() {
destroy();
}
void Fence::create() {
VULKAN_CHECK_RESULT(vkCreateFence(device->getHandle(), &createInfo, nullptr, &handle), "Failed to create fence");
}
void Fence::destroy() {
VULKAN_DESTROY_HANDLE(vkDestroyFence(device->getHandle(), handle, nullptr))
}
VkResult Fence::wait() {
return vkWaitForFences(device->getHandle(), 1, &handle, VK_TRUE, UINT64_MAX);
}
VkResult Fence::reset() {
return vkResetFences(device->getHandle(), 1, &handle);
}
void Fence::setSignaledBit() {
createInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
}
} // Vulkan
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Multiple Descriptor Sets";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
// Sample from a green texture to easily see that we've pulled correct texel
// value
const char *textureName = "green.ppm";
init_texture(info, textureName);
init_uniform_buffer(info);
init_renderpass(info, true);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, true);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
/* VULKAN_KEY_START */
// Set up two descriptor sets
static const unsigned descriptor_set_count = 2;
// Create first layout to contain uniform buffer data
VkDescriptorSetLayoutBinding uniform_binding[1] = {};
uniform_binding[0].binding = 0;
uniform_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
uniform_binding[0].descriptorCount = 1;
uniform_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
uniform_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo uniform_layout_info[1] = {};
uniform_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
uniform_layout_info[0].pNext = NULL;
uniform_layout_info[0].bindingCount = 1;
uniform_layout_info[0].pBindings = uniform_binding;
// Create second layout containing combined sampler/image data
VkDescriptorSetLayoutBinding sampler2D_binding[1] = {};
sampler2D_binding[0].binding = 0;
sampler2D_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
sampler2D_binding[0].descriptorCount = 1;
sampler2D_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
sampler2D_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo sampler2D_layout_info[1] = {};
sampler2D_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
sampler2D_layout_info[0].pNext = NULL;
sampler2D_layout_info[0].bindingCount = 1;
sampler2D_layout_info[0].pBindings = sampler2D_binding;
// Create multiple sets, using each createInfo
static const unsigned uniform_set_index = 0;
static const unsigned sampler_set_index = 1;
VkDescriptorSetLayout descriptor_layouts[descriptor_set_count] = {};
res = vkCreateDescriptorSetLayout(info.device, uniform_layout_info, NULL, &descriptor_layouts[uniform_set_index]);
assert(res == VK_SUCCESS);
res = vkCreateDescriptorSetLayout(info.device, sampler2D_layout_info, NULL, &descriptor_layouts[sampler_set_index]);
assert(res == VK_SUCCESS);
// Create pipeline layout with multiple descriptor sets
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = 0;
pipelineLayoutCreateInfo[0].pPushConstantRanges = NULL;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our two descriptor sets
VkDescriptorPoolSize type_count[2] = {};
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
type_count[0].descriptorCount = 1;
type_count[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
type_count[1].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = sizeof(type_count) / sizeof(VkDescriptorPoolSize);
pool_info[0].pPoolSizes = type_count;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
// Using empty brace initializer on the next line triggers a bug in older
// versions of gcc, so memset instead
VkWriteDescriptorSet descriptor_writes[2];
memset(descriptor_writes, 0, sizeof(descriptor_writes));
// Populate with info about our uniform buffer
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[uniform_set_index];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
// Populate with info about our sampled image
descriptor_writes[1] = {};
descriptor_writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[1].pNext = NULL;
descriptor_writes[1].dstSet = descriptor_sets[sampler_set_index];
descriptor_writes[1].descriptorCount = 1;
descriptor_writes[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptor_writes[1].pImageInfo = &info.texture_data.image_info; // populated by init_texture()
descriptor_writes[1].dstArrayElement = 0;
descriptor_writes[1].dstBinding = 0;
vkUpdateDescriptorSets(info.device, descriptor_set_count, descriptor_writes, 0, NULL);
/* VULKAN_KEY_END */
// Call remaining boilerplate utils
init_pipeline_cache(info);
init_pipeline(info, true);
// The remaining is identical to drawtexturedcube
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore imageAcquiredSemaphore;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, descriptor_set_count,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &imageAcquiredSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "multiple_sets");
vkDestroySemaphore(info.device, imageAcquiredSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "SPIR-V Specialization";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_texture(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent);
/* VULKAN_KEY_START */
// Pass in nullptr for fragment shader so we can setup specialization
init_shaders(info, vertShaderText, nullptr);
// This structure maps constant ids to data locations.
// NOTE: Padding bool to 32-bits for simplicity
const VkSpecializationMapEntry entries[] =
// id, offset, size
{{5, 0, sizeof(uint32_t)},
{7, 1 * sizeof(uint32_t), sizeof(uint32_t)},
{8, 2 * sizeof(uint32_t), sizeof(uint32_t)},
{9, 3 * sizeof(uint32_t), sizeof(uint32_t)}};
// Initialize the values we want our mini-ubershader to use
const bool drawUserColor = true;
const float userColor[] = {0.0f, 0.0f, 1.0f};
// Populate our data entry
uint32_t data[4] = {};
data[0] = drawUserColor ? 1 : 0;
((float *)data)[1] = userColor[0];
((float *)data)[2] = userColor[1];
((float *)data)[3] = userColor[2];
// Set up the info describing our spec map and data
const VkSpecializationInfo specInfo = {
4, // mapEntryCount
entries, // pMapEntries
4 * sizeof(float), // dataSize
data, // pData
};
// Provide the specialization data to fragment stage
info.shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
info.shaderStages[1].pNext = NULL;
info.shaderStages[1].pSpecializationInfo = &specInfo;
info.shaderStages[1].flags = 0;
info.shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
info.shaderStages[1].pName = "main";
VkShaderModuleCreateInfo moduleCreateInfo;
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.flags = 0;
if (use_SPIRV_asm) {
// Use the hand edited SPIR-V assembly
spv_context spvContext = spvContextCreate(SPV_ENV_VULKAN_1_0);
spv_binary fragmentBinary = {};
spv_diagnostic fragmentDiag = {};
spv_result_t fragmentResult = spvTextToBinary(spvContext, fragmentSPIRV_specialized.c_str(),
fragmentSPIRV_specialized.length(), &fragmentBinary, &fragmentDiag);
if (fragmentDiag) {
printf("Diagnostic info from fragment shader:\n");
spvDiagnosticPrint(fragmentDiag);
}
assert(fragmentResult == SPV_SUCCESS);
moduleCreateInfo.codeSize = fragmentBinary->wordCount * sizeof(unsigned int);
moduleCreateInfo.pCode = fragmentBinary->code;
spvDiagnosticDestroy(fragmentDiag);
spvContextDestroy(spvContext);
} else {
// Convert GLSL to SPIR-V
init_glslang();
std::vector<unsigned int> fragSpv;
bool U_ASSERT_ONLY retVal = GLSLtoSPV(VK_SHADER_STAGE_FRAGMENT_BIT, fragShaderText, fragSpv);
assert(retVal);
finalize_glslang();
moduleCreateInfo.codeSize = fragSpv.size() * sizeof(unsigned int);
moduleCreateInfo.pCode = fragSpv.data();
}
res = vkCreateShaderModule(info.device, &moduleCreateInfo, NULL, &info.shaderStages[1].module);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "spirv_specialization");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Draw Cube";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
if (info.gpu_props.limits.maxDescriptorSetUniformBuffersDynamic < 1) {
std::cout << "No dynamic uniform buffers supported\n";
exit(-1);
}
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_solid_face_colors_Data,
sizeof(g_vb_solid_face_colors_Data),
sizeof(g_vb_solid_face_colors_Data[0]), false);
/* Set up uniform buffer with 2 transform matrices in it */
info.Projection = glm::perspective(glm::radians(45.0f), 1.0f, 0.1f, 100.0f);
info.View = glm::lookAt(
glm::vec3(0, 3, 10), // Camera is at (0,3,10), in World Space
glm::vec3(0, 0, 0), // and looks at the origin
glm::vec3(0, -1, 0) // Head is up (set to 0,-1,0 to look upside-down)
);
info.Model = glm::mat4(1.0f);
// Vulkan clip space has inverted Y and half Z.
info.Clip = glm::mat4(1.0f, 0.0f, 0.0f, 0.0f,
0.0f, -1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.5f, 0.0f,
0.0f, 0.0f, 0.5f, 1.0f);
info.MVP = info.Clip * info.Projection * info.View * info.Model;
/* VULKAN_KEY_START */
info.Model = glm::translate(info.Model, glm::vec3(1.5, 1.5, 1.5));
glm::mat4 MVP2 = info.Clip * info.Projection * info.View * info.Model;
VkDeviceSize buf_size = sizeof(info.MVP);
if (info.gpu_props.limits.minUniformBufferOffsetAlignment)
buf_size = (buf_size +
info.gpu_props.limits.minUniformBufferOffsetAlignment - 1) &
~(info.gpu_props.limits.minUniformBufferOffsetAlignment - 1);
VkBufferCreateInfo buf_info = {};
buf_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buf_info.pNext = NULL;
buf_info.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
buf_info.size = 2 * buf_size;
buf_info.queueFamilyIndexCount = 0;
buf_info.pQueueFamilyIndices = NULL;
buf_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buf_info.flags = 0;
res = vkCreateBuffer(info.device, &buf_info, NULL, &info.uniform_data.buf);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetBufferMemoryRequirements(info.device, info.uniform_data.buf,
&mem_reqs);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = NULL;
alloc_info.memoryTypeIndex = 0;
alloc_info.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&alloc_info.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &alloc_info, NULL,
&(info.uniform_data.mem));
assert(res == VK_SUCCESS);
/* Map the buffer memory and copy both matrices */
uint8_t *pData;
res = vkMapMemory(info.device, info.uniform_data.mem, 0, mem_reqs.size, 0,
(void **)&pData);
assert(res == VK_SUCCESS);
memcpy(pData, &info.MVP, sizeof(info.MVP));
pData += buf_size;
memcpy(pData, &MVP2, sizeof(MVP2));
vkUnmapMemory(info.device, info.uniform_data.mem);
res = vkBindBufferMemory(info.device, info.uniform_data.buf,
info.uniform_data.mem, 0);
assert(res == VK_SUCCESS);
info.uniform_data.buffer_info.buffer = info.uniform_data.buf;
info.uniform_data.buffer_info.offset = 0;
info.uniform_data.buffer_info.range = buf_size;
/* Init desciptor and pipeline layouts - descriptor type is
* UNIFORM_BUFFER_DYNAMIC */
VkDescriptorSetLayoutBinding layout_bindings[2];
layout_bindings[0].binding = 0;
layout_bindings[0].descriptorType =
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
layout_bindings[0].descriptorCount = 1;
layout_bindings[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
layout_bindings[0].pImmutableSamplers = NULL;
/* Next take layout bindings and use them to create a descriptor set layout
*/
VkDescriptorSetLayoutCreateInfo descriptor_layout = {};
descriptor_layout.sType =
VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptor_layout.pNext = NULL;
descriptor_layout.bindingCount = 1;
descriptor_layout.pBindings = layout_bindings;
info.desc_layout.resize(NUM_DESCRIPTOR_SETS);
res = vkCreateDescriptorSetLayout(info.device, &descriptor_layout, NULL,
info.desc_layout.data());
assert(res == VK_SUCCESS);
/* Now use the descriptor layout to create a pipeline layout */
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType =
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = NUM_DESCRIPTOR_SETS;
pPipelineLayoutCreateInfo.pSetLayouts = info.desc_layout.data();
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL,
&info.pipeline_layout);
assert(res == VK_SUCCESS);
/* Create descriptor pool with UNIFOM_BUFFER_DYNAMIC type */
VkDescriptorPoolSize type_count[1];
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
type_count[0].descriptorCount = 1;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.maxSets = 1;
descriptor_pool.poolSizeCount = 1;
descriptor_pool.pPoolSizes = type_count;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL,
&info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo desc_alloc_info[1];
desc_alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
desc_alloc_info[0].pNext = NULL;
desc_alloc_info[0].descriptorPool = info.desc_pool;
desc_alloc_info[0].descriptorSetCount = NUM_DESCRIPTOR_SETS;
desc_alloc_info[0].pSetLayouts = info.desc_layout.data();
/* Allocate descriptor set with UNIFORM_BUFFER_DYNAMIC */
info.desc_set.resize(NUM_DESCRIPTOR_SETS);
res = vkAllocateDescriptorSets(info.device, desc_alloc_info,
info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[1];
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].pNext = NULL;
writes[0].dstSet = info.desc_set[0];
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
writes[0].pBufferInfo = &info.uniform_data.buffer_info;
writes[0].dstArrayElement = 0;
writes[0].dstBinding = 0;
vkUpdateDescriptorSets(info.device, 1, writes, 0, NULL);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
/* The first draw should use the first matrix in the buffer */
uint32_t uni_offsets[1] = {0};
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 1, uni_offsets);
const VkDeviceSize vtx_offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf,
vtx_offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
uni_offsets[0] = (uint32_t)buf_size; /* The second draw should use the
second matrix in the buffer */
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 1, uni_offsets);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "dynamicuniform");
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Separate Image Sampler";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
/* VULKAN_KEY_START */
// Sample from a green texture to easily see that we've pulled correct texel
// value
// Create our separate image
struct texture_object texObj;
const char *textureName = "green.ppm";
init_image(info, texObj, textureName);
info.textures.push_back(texObj);
info.texture_data.image_info.sampler = 0;
info.texture_data.image_info.imageView = info.textures[0].view;
info.texture_data.image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Create our separate sampler
VkSampler separateSampler = {};
init_sampler(info, separateSampler);
VkDescriptorImageInfo samplerInfo = {};
samplerInfo.sampler = separateSampler;
// Set up one descriptor set
static const unsigned descriptor_set_count = 1;
static const unsigned resource_count = 3;
static const unsigned resource_type_count = 3;
// Create binding and layout for the following, matching contents of shader
// binding 0 = uniform buffer (MVP)
// binding 1 = texture2D
// binding 2 = sampler
VkDescriptorSetLayoutBinding resource_binding[resource_count] = {};
resource_binding[0].binding = 0;
resource_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
resource_binding[0].descriptorCount = 1;
resource_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
resource_binding[0].pImmutableSamplers = NULL;
resource_binding[1].binding = 1;
resource_binding[1].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
resource_binding[1].descriptorCount = 1;
resource_binding[1].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
resource_binding[1].pImmutableSamplers = NULL;
resource_binding[2].binding = 2;
resource_binding[2].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
resource_binding[2].descriptorCount = 1;
resource_binding[2].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
resource_binding[2].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo resource_layout_info[1] = {};
resource_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
resource_layout_info[0].pNext = NULL;
resource_layout_info[0].bindingCount = resource_count;
resource_layout_info[0].pBindings = resource_binding;
VkDescriptorSetLayout descriptor_layouts[1] = {};
res = vkCreateDescriptorSetLayout(info.device, resource_layout_info, NULL, &descriptor_layouts[0]);
assert(res == VK_SUCCESS);
// Create pipeline layout
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = 0;
pipelineLayoutCreateInfo[0].pPushConstantRanges = NULL;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our descriptor set
VkDescriptorPoolSize pool_sizes[resource_type_count] = {};
pool_sizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
pool_sizes[0].descriptorCount = 1;
pool_sizes[1].type = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
pool_sizes[1].descriptorCount = 1;
pool_sizes[2].type = VK_DESCRIPTOR_TYPE_SAMPLER;
pool_sizes[2].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = resource_type_count;
pool_info[0].pPoolSizes = pool_sizes;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
VkWriteDescriptorSet descriptor_writes[resource_count];
// Populate with info about our uniform buffer for MVP
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[0];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
// Populate with info about our image
descriptor_writes[1] = {};
descriptor_writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[1].pNext = NULL;
descriptor_writes[1].dstSet = descriptor_sets[0];
descriptor_writes[1].descriptorCount = 1;
descriptor_writes[1].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
descriptor_writes[1].pImageInfo = &info.texture_data.image_info; // populated by init_texture()
descriptor_writes[1].dstArrayElement = 0;
descriptor_writes[1].dstBinding = 1;
// Populate with info about our sampler
descriptor_writes[2] = {};
descriptor_writes[2].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[2].pNext = NULL;
descriptor_writes[2].dstSet = descriptor_sets[0];
descriptor_writes[2].descriptorCount = 1;
descriptor_writes[2].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
descriptor_writes[2].pImageInfo = &samplerInfo;
descriptor_writes[2].dstArrayElement = 0;
descriptor_writes[2].dstBinding = 2;
vkUpdateDescriptorSets(info.device, resource_count, descriptor_writes, 0, NULL);
/* VULKAN_KEY_END */
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "separate_image_sampler");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
vkDestroySampler(info.device, separateSampler, NULL);
vkDestroyImageView(info.device, info.textures[0].view, NULL);
vkDestroyImage(info.device, info.textures[0].image, NULL);
vkFreeMemory(info.device, info.textures[0].mem, NULL);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Draw Cube";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
info.instance_extension_names.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
#ifdef _WIN32
info.instance_extension_names.push_back(
VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
#else
info.instance_extension_names.push_back(VK_KHR_XCB_SURFACE_EXTENSION_NAME);
#endif
info.device_extension_names.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, false);
init_renderpass(info, DEPTH_PRESENT);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, DEPTH_PRESENT);
init_vertex_buffer(info, g_vb_solid_face_colors_Data,
sizeof(g_vb_solid_face_colors_Data),
sizeof(g_vb_solid_face_colors_Data[0]), false);
init_descriptor_pool(info, false);
init_descriptor_set(info, false);
init_pipeline_cache(info);
init_pipeline(info, DEPTH_PRESENT);
/* VULKAN_KEY_START */
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, NULL,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
/* Allocate a uniform buffer that will take query results. */
VkBuffer query_result_buf;
VkDeviceMemory query_result_mem;
VkBufferCreateInfo buf_info = {};
buf_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buf_info.pNext = NULL;
buf_info.usage =
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
buf_info.size = 4 * sizeof(uint64_t);
buf_info.queueFamilyIndexCount = 0;
buf_info.pQueueFamilyIndices = NULL;
buf_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buf_info.flags = 0;
res = vkCreateBuffer(info.device, &buf_info, NULL, &query_result_buf);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetBufferMemoryRequirements(info.device, query_result_buf, &mem_reqs);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = NULL;
alloc_info.memoryTypeIndex = 0;
alloc_info.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&alloc_info.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &alloc_info, NULL, &query_result_mem);
assert(res == VK_SUCCESS);
res =
vkBindBufferMemory(info.device, query_result_buf, query_result_mem, 0);
assert(res == VK_SUCCESS);
VkQueryPool query_pool;
VkQueryPoolCreateInfo query_pool_info;
query_pool_info.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO;
query_pool_info.pNext = NULL;
query_pool_info.queryType = VK_QUERY_TYPE_OCCLUSION;
query_pool_info.flags = 0;
query_pool_info.queryCount = 2;
query_pool_info.pipelineStatistics = 0;
res = vkCreateQueryPool(info.device, &query_pool_info, NULL, &query_pool);
assert(res == VK_SUCCESS);
vkCmdResetQueryPool(info.cmd, query_pool, 0 /*startQuery*/,
2 /*queryCount*/);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
VkViewport viewport;
viewport.height = (float)info.height;
viewport.width = (float)info.width;
viewport.minDepth = (float)0.0f;
viewport.maxDepth = (float)1.0f;
viewport.x = 0;
viewport.y = 0;
vkCmdSetViewport(info.cmd, 0, NUM_VIEWPORTS, &viewport);
VkRect2D scissor;
scissor.extent.width = info.width;
scissor.extent.height = info.height;
scissor.offset.x = 0;
scissor.offset.y = 0;
vkCmdSetScissor(info.cmd, 0, NUM_SCISSORS, &scissor);
vkCmdBeginQuery(info.cmd, query_pool, 0 /*slot*/, 0 /*flags*/);
vkCmdEndQuery(info.cmd, query_pool, 0 /*slot*/);
vkCmdBeginQuery(info.cmd, query_pool, 1 /*slot*/, 0 /*flags*/);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
vkCmdEndQuery(info.cmd, query_pool, 1 /*slot*/);
vkCmdCopyQueryPoolResults(
info.cmd, query_pool, 0 /*firstQuery*/, 2 /*queryCount*/,
query_result_buf, 0 /*dstOffset*/, sizeof(uint64_t) /*stride*/,
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = 0;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0, 0, NULL, 0, NULL,
1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
res = vkQueueWaitIdle(info.queue);
assert(res == VK_SUCCESS);
uint64_t samples_passed[4];
samples_passed[0] = 0;
samples_passed[1] = 0;
res = vkGetQueryPoolResults(
info.device, query_pool, 0 /*firstQuery*/, 2 /*queryCount*/,
sizeof(samples_passed) /*dataSize*/, samples_passed,
sizeof(uint64_t) /*stride*/,
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
assert(res == VK_SUCCESS);
std::cout << "vkGetQueryPoolResults data"
<< "\n";
std::cout << "samples_passed[0] = " << samples_passed[0] << "\n";
std::cout << "samples_passed[1] = " << samples_passed[1] << "\n";
/* Read back query result from buffer */
uint64_t *samples_passed_ptr;
res = vkMapMemory(info.device, query_result_mem, 0, mem_reqs.size, 0,
(void **)&samples_passed_ptr);
assert(res == VK_SUCCESS);
std::cout << "vkCmdCopyQueryPoolResults data"
<< "\n";
std::cout << "samples_passed[0] = " << samples_passed_ptr[0] << "\n";
std::cout << "samples_passed[1] = " << samples_passed_ptr[1] << "\n";
vkUnmapMemory(info.device, query_result_mem);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "occlusion_query");
vkDestroyBuffer(info.device, query_result_buf, NULL);
vkFreeMemory(info.device, query_result_mem, NULL);
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
vkDestroyQueryPool(info.device, query_pool, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Simple Push Constants";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
// Set up one descriptor sets
static const unsigned descriptor_set_count = 1;
static const unsigned resource_count = 1;
// Create binding and layout for the following, matching contents of shader
// binding 0 = uniform buffer (MVP)
VkDescriptorSetLayoutBinding resource_binding[resource_count] = {};
resource_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
resource_binding[0].descriptorCount = 1;
resource_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
resource_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo resource_layout_info[1] = {};
resource_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
resource_layout_info[0].pNext = NULL;
resource_layout_info[0].bindingCount = resource_count;
resource_layout_info[0].pBindings = resource_binding;
VkDescriptorSetLayout descriptor_layouts[1] = {};
res = vkCreateDescriptorSetLayout(info.device, resource_layout_info, NULL, &descriptor_layouts[0]);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_START */
// Set up our push constant range, which mirrors the declaration of
const unsigned push_constant_range_count = 1;
VkPushConstantRange push_constant_ranges[push_constant_range_count] = {};
push_constant_ranges[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
push_constant_ranges[0].offset = 0;
push_constant_ranges[0].size = 8;
// Create pipeline layout, including push constant info.
// Create pipeline layout with multiple descriptor sets
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = push_constant_range_count;
pipelineLayoutCreateInfo[0].pPushConstantRanges = push_constant_ranges;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our descriptor set
VkDescriptorPoolSize type_count[2] = {};
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
type_count[0].descriptorCount = 1;
type_count[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
type_count[1].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = sizeof(type_count) / sizeof(VkDescriptorPoolSize);
pool_info[0].pPoolSizes = type_count;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
// Using empty brace initializer on the next line triggers a bug in older
// versions of gcc, so memset instead
VkWriteDescriptorSet descriptor_writes[resource_count];
memset(descriptor_writes, 0, sizeof(descriptor_writes));
// Populate with info about our uniform buffer for MVP
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[0];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
vkUpdateDescriptorSets(info.device, resource_count, descriptor_writes, 0, NULL);
// Create our push constant data, which matches shader expectations
unsigned pushConstants[2] = {};
pushConstants[0] = (unsigned)2;
pushConstants[1] = (unsigned)0x3F800000;
// Ensure we have enough room for push constant data
if (sizeof(pushConstants) > info.gpu_props.limits.maxPushConstantsSize) assert(0 && "Too many push constants");
vkCmdPushConstants(info.cmd, info.pipeline_layout, VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof(pushConstants), pushConstants);
/* VULKAN_KEY_END */
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "push_constants");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Input Attachment Sample";
const bool depthPresent = false;
const bool vertexPresent = false;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
VkFormatProperties props;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], VK_FORMAT_R8G8B8A8_UNORM, &props);
if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT)) {
std::cout << "VK_FORMAT_R8G8B8A8_UNORM format unsupported for input "
"attachment\n";
exit(-1);
}
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
/* VULKAN_KEY_START */
// Create a framebuffer with 2 attachments, one the color attachment
// the shaders render into, and the other an input attachment which
// will be cleared to yellow, and then used by the shaders to color
// the drawn triangle. Final result should be a yellow triangle
// Create the image that will be used as the input attachment
// The image for the color attachment is the presentable image already
// created in init_swapchain()
VkImageCreateInfo image_create_info = {};
image_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
image_create_info.pNext = NULL;
image_create_info.imageType = VK_IMAGE_TYPE_2D;
image_create_info.format = info.format;
image_create_info.extent.width = info.width;
image_create_info.extent.height = info.height;
image_create_info.extent.depth = 1;
image_create_info.mipLevels = 1;
image_create_info.arrayLayers = 1;
image_create_info.samples = NUM_SAMPLES;
image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL;
image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
image_create_info.usage = VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
image_create_info.queueFamilyIndexCount = 0;
image_create_info.pQueueFamilyIndices = NULL;
image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
image_create_info.flags = 0;
VkMemoryAllocateInfo mem_alloc = {};
mem_alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
mem_alloc.pNext = NULL;
mem_alloc.allocationSize = 0;
mem_alloc.memoryTypeIndex = 0;
VkImage input_image;
VkDeviceMemory input_memory;
res = vkCreateImage(info.device, &image_create_info, NULL, &input_image);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetImageMemoryRequirements(info.device, input_image, &mem_reqs);
mem_alloc.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits, 0, &mem_alloc.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &mem_alloc, NULL, &input_memory);
assert(res == VK_SUCCESS);
res = vkBindImageMemory(info.device, input_image, input_memory, 0);
assert(res == VK_SUCCESS);
// Set the image layout to TRANSFER_DST_OPTIMAL to be ready for clear
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color;
clear_color.float32[0] = 1.0f;
clear_color.float32[1] = 1.0f;
clear_color.float32[2] = 0.0f;
clear_color.float32[3] = 0.0f;
// Clear the input attachment image to yellow
vkCmdClearColorImage(info.cmd, input_image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clear_color, 1, &srRange);
// Set the image layout to SHADER_READONLY_OPTIMAL for use by the shaders
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
VkImageViewCreateInfo view_info = {};
view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view_info.pNext = NULL;
view_info.image = VK_NULL_HANDLE;
view_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
view_info.format = info.format;
view_info.components.r = VK_COMPONENT_SWIZZLE_R;
view_info.components.g = VK_COMPONENT_SWIZZLE_G;
view_info.components.b = VK_COMPONENT_SWIZZLE_B;
view_info.components.a = VK_COMPONENT_SWIZZLE_A;
view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view_info.subresourceRange.baseMipLevel = 0;
view_info.subresourceRange.levelCount = 1;
view_info.subresourceRange.baseArrayLayer = 0;
view_info.subresourceRange.layerCount = 1;
VkImageView input_attachment_view;
view_info.image = input_image;
res = vkCreateImageView(info.device, &view_info, NULL, &input_attachment_view);
assert(res == VK_SUCCESS);
VkDescriptorImageInfo input_image_info = {};
input_image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
input_image_info.imageView = input_attachment_view;
input_image_info.sampler = VK_NULL_HANDLE;
VkDescriptorSetLayoutBinding layout_bindings[1];
layout_bindings[0].binding = 0;
layout_bindings[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
layout_bindings[0].descriptorCount = 1;
layout_bindings[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
layout_bindings[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo descriptor_layout = {};
descriptor_layout.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptor_layout.pNext = NULL;
descriptor_layout.bindingCount = 1;
descriptor_layout.pBindings = layout_bindings;
info.desc_layout.resize(NUM_DESCRIPTOR_SETS);
res = vkCreateDescriptorSetLayout(info.device, &descriptor_layout, NULL, info.desc_layout.data());
assert(res == VK_SUCCESS);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = NUM_DESCRIPTOR_SETS;
pPipelineLayoutCreateInfo.pSetLayouts = info.desc_layout.data();
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// First attachment is the color attachment - clear at the beginning of the
// renderpass and transition layout to PRESENT_SRC_KHR at the end of
// renderpass
VkAttachmentDescription attachments[2];
attachments[0].format = info.format;
attachments[0].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachments[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachments[0].finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
attachments[0].flags = 0;
// Second attachment is input attachment. Once cleared it should have
// width*height yellow pixels. Doing a subpassLoad in the fragment shader
// should give the shader the color at the fragments x,y location
// from the input attachment
attachments[1].format = info.format;
attachments[1].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[1].loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
attachments[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].initialLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].flags = 0;
VkAttachmentReference color_reference = {};
color_reference.attachment = 0;
color_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference input_reference = {};
input_reference.attachment = 1;
input_reference.layout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.flags = 0;
subpass.inputAttachmentCount = 1;
subpass.pInputAttachments = &input_reference;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &color_reference;
subpass.pResolveAttachments = NULL;
subpass.pDepthStencilAttachment = NULL;
subpass.preserveAttachmentCount = 0;
subpass.pPreserveAttachments = NULL;
VkRenderPassCreateInfo rp_info = {};
rp_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
rp_info.pNext = NULL;
rp_info.attachmentCount = 2;
rp_info.pAttachments = attachments;
rp_info.subpassCount = 1;
rp_info.pSubpasses = &subpass;
rp_info.dependencyCount = 0;
rp_info.pDependencies = NULL;
res = vkCreateRenderPass(info.device, &rp_info, NULL, &info.render_pass);
assert(!res);
init_shaders(info, vertShaderText, fragShaderText);
VkImageView fb_attachments[2];
fb_attachments[1] = input_attachment_view;
VkFramebufferCreateInfo fbc_info = {};
fbc_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbc_info.pNext = NULL;
fbc_info.renderPass = info.render_pass;
fbc_info.attachmentCount = 2;
fbc_info.pAttachments = fb_attachments;
fbc_info.width = info.width;
fbc_info.height = info.height;
fbc_info.layers = 1;
uint32_t i;
info.framebuffers = (VkFramebuffer *)malloc(info.swapchainImageCount * sizeof(VkFramebuffer));
for (i = 0; i < info.swapchainImageCount; i++) {
fb_attachments[0] = info.buffers[i].view;
res = vkCreateFramebuffer(info.device, &fbc_info, NULL, &info.framebuffers[i]);
assert(res == VK_SUCCESS);
}
VkDescriptorPoolSize type_count[1];
type_count[0].type = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
type_count[0].descriptorCount = 1;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.maxSets = 1;
descriptor_pool.poolSizeCount = 1;
descriptor_pool.pPoolSizes = type_count;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL, &info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo desc_alloc_info[1];
desc_alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
desc_alloc_info[0].pNext = NULL;
desc_alloc_info[0].descriptorPool = info.desc_pool;
desc_alloc_info[0].descriptorSetCount = 1;
desc_alloc_info[0].pSetLayouts = info.desc_layout.data();
info.desc_set.resize(1);
res = vkAllocateDescriptorSets(info.device, desc_alloc_info, info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[1];
// Write descriptor set with one write describing input attachment
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].dstSet = info.desc_set[0];
writes[0].dstBinding = 0;
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
writes[0].pImageInfo = &input_image_info;
writes[0].pBufferInfo = nullptr;
writes[0].pTexelBufferView = nullptr;
writes[0].dstArrayElement = 0;
vkUpdateDescriptorSets(info.device, 1, writes, 0, NULL);
init_pipeline_cache(info);
init_pipeline(info, depthPresent, vertexPresent);
// Color attachment clear to gray
VkClearValue clear_values;
clear_values.color.float32[0] = 0.2f;
clear_values.color.float32[1] = 0.2f;
clear_values.color.float32[2] = 0.2f;
clear_values.color.float32[3] = 0.2f;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &info.imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, info.imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 1;
rp_begin.pClearValues = &clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
execute_queue_cmdbuf(info, cmd_bufs, drawFence);
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, drawFence, NULL);
execute_present_image(info);
wait_seconds(1);
if (info.save_images) write_ppm(info, "input_attachment");
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
vkDestroyImageView(info.device, input_attachment_view, NULL);
vkDestroyImage(info.device, input_image, NULL);
vkFreeMemory(info.device, input_memory, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Copy/Blit Image";
VkImageCreateInfo image_info;
VkImage bltSrcImage;
VkImage bltDstImage;
VkMemoryRequirements memReq;
VkMemoryAllocateInfo memAllocInfo;
VkDeviceMemory dmem;
unsigned char *pImgMem;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 640, 640);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
VkSurfaceCapabilitiesKHR surfCapabilities;
res = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(info.gpus[0], info.surface,
&surfCapabilities);
if (!(surfCapabilities.supportedUsageFlags & VK_IMAGE_USAGE_TRANSFER_DST_BIT)) {
std::cout << "Surface cannot be destination of blit - abort \n";
exit(-1);
}
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_TRANSFER_DST_BIT);
/* VULKAN_KEY_START */
VkFormatProperties formatProps;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], info.format,
&formatProps);
assert(
(formatProps.linearTilingFeatures & VK_FORMAT_FEATURE_BLIT_SRC_BIT) &&
"Format cannot be used as transfer source");
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
// Create an image, map it, and write some values to the image
image_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
image_info.pNext = NULL;
image_info.imageType = VK_IMAGE_TYPE_2D;
image_info.format = info.format;
image_info.extent.width = info.width;
image_info.extent.height = info.height;
image_info.extent.depth = 1;
image_info.mipLevels = 1;
image_info.arrayLayers = 1;
image_info.samples = NUM_SAMPLES;
image_info.queueFamilyIndexCount = 0;
image_info.pQueueFamilyIndices = NULL;
image_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
image_info.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
image_info.flags = 0;
image_info.tiling = VK_IMAGE_TILING_LINEAR;
image_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
res = vkCreateImage(info.device, &image_info, NULL, &bltSrcImage);
memAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
memAllocInfo.pNext = NULL;
vkGetImageMemoryRequirements(info.device, bltSrcImage, &memReq);
bool pass = memory_type_from_properties(info, memReq.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&memAllocInfo.memoryTypeIndex);
assert(pass);
memAllocInfo.allocationSize = memReq.size;
res = vkAllocateMemory(info.device, &memAllocInfo, NULL, &dmem);
res = vkBindImageMemory(info.device, bltSrcImage, dmem, 0);
set_image_layout(info, bltSrcImage, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_GENERAL);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence cmdFence;
init_fence(info, cmdFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info = {};
submit_info.pNext = NULL;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &presentCompleteSemaphore;
submit_info.pWaitDstStageMask = &pipe_stage_flags;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &info.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, &submit_info, cmdFence);
assert(res == VK_SUCCESS);
/* Make sure command buffer is finished before mapping */
do {
res =
vkWaitForFences(info.device, 1, &cmdFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, cmdFence, NULL);
res = vkMapMemory(info.device, dmem, 0, memReq.size, 0, (void **)&pImgMem);
// Checkerboard of 8x8 pixel squares
for (int row = 0; row < info.height; row++) {
for (int col = 0; col < info.width; col++) {
unsigned char rgb = (((row & 0x8) == 0) ^ ((col & 0x8) == 0)) * 255;
pImgMem[0] = rgb;
pImgMem[1] = rgb;
pImgMem[2] = rgb;
pImgMem[3] = 255;
pImgMem += 4;
}
}
// Flush the mapped memory and then unmap it Assume it isn't coherent since
// we didn't really confirm
VkMappedMemoryRange memRange;
memRange.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
memRange.pNext = NULL;
memRange.memory = dmem;
memRange.offset = 0;
memRange.size = memReq.size;
res = vkFlushMappedMemoryRanges(info.device, 1, &memRange);
vkUnmapMemory(info.device, dmem);
vkResetCommandBuffer(info.cmd, 0);
execute_begin_command_buffer(info);
set_image_layout(info, bltSrcImage, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_GENERAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
bltDstImage = info.buffers[info.current_buffer].image;
// init_swap_chain will create the images as color attachment optimal
// but we want transfer dst optimal
set_image_layout(info, bltDstImage, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
// Do a 32x32 blit to all of the dst image - should get big squares
VkImageBlit region;
region.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.srcSubresource.mipLevel = 0;
region.srcSubresource.baseArrayLayer = 0;
region.srcSubresource.layerCount = 1;
region.srcOffsets[0].x = 0;
region.srcOffsets[0].y = 0;
region.srcOffsets[0].z = 0;
region.srcOffsets[1].x = 32;
region.srcOffsets[1].y = 32;
region.srcOffsets[1].z = 1;
region.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.dstSubresource.mipLevel = 0;
region.dstSubresource.baseArrayLayer = 0;
region.dstSubresource.layerCount = 1;
region.dstOffsets[0].x = 0;
region.dstOffsets[0].y = 0;
region.dstOffsets[0].z = 0;
region.dstOffsets[1].x = info.width;
region.dstOffsets[1].y = info.height;
region.dstOffsets[1].z = 1;
vkCmdBlitImage(info.cmd, bltSrcImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
bltDstImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1,
®ion, VK_FILTER_LINEAR);
// Do a image copy to part of the dst image - checks should stay small
VkImageCopy cregion;
cregion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
cregion.srcSubresource.mipLevel = 0;
cregion.srcSubresource.baseArrayLayer = 0;
cregion.srcSubresource.layerCount = 1;
cregion.srcOffset.x = 0;
cregion.srcOffset.y = 0;
cregion.srcOffset.z = 0;
cregion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
cregion.dstSubresource.mipLevel = 0;
cregion.dstSubresource.baseArrayLayer = 0;
cregion.dstSubresource.layerCount = 1;
cregion.dstOffset.x = 256;
cregion.dstOffset.y = 256;
cregion.dstOffset.z = 0;
cregion.extent.width = 128;
cregion.extent.height = 128;
cregion.extent.depth = 1;
vkCmdCopyImage(info.cmd, bltSrcImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
bltDstImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1,
&cregion);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
submit_info.pNext = NULL;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = NULL;
submit_info.pWaitDstStageMask = NULL;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &info.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
res = vkQueueWaitIdle(info.queue);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "copyblitimage");
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
vkDestroyImage(info.device, bltSrcImage, NULL);
vkFreeMemory(info.device, dmem, NULL);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Secondary command buffers";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent, true, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
// we have to set up a couple of things by hand, but this
// isn't any different to other examples
// get two different textures
init_texture(info, "green.ppm");
VkDescriptorImageInfo greenTex = info.texture_data.image_info;
init_texture(info, "lunarg.ppm");
VkDescriptorImageInfo lunargTex = info.texture_data.image_info;
// create two identical descriptor sets, each with a different texture but
// identical UBOa
VkDescriptorPoolSize pool_size[2];
pool_size[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
pool_size[0].descriptorCount = 2;
pool_size[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
pool_size[1].descriptorCount = 2;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.flags = 0;
descriptor_pool.maxSets = 2;
descriptor_pool.poolSizeCount = 2;
descriptor_pool.pPoolSizes = pool_size;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL, &info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetLayout layouts[] = {info.desc_layout[0], info.desc_layout[0]};
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = info.desc_pool;
alloc_info[0].descriptorSetCount = 2;
alloc_info[0].pSetLayouts = layouts;
info.desc_set.resize(2);
res = vkAllocateDescriptorSets(info.device, alloc_info, info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[2];
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].pNext = NULL;
writes[0].dstSet = info.desc_set[0];
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
writes[0].pBufferInfo = &info.uniform_data.buffer_info;
writes[0].dstArrayElement = 0;
writes[0].dstBinding = 0;
writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[1].pNext = NULL;
writes[1].dstSet = info.desc_set[0];
writes[1].dstBinding = 1;
writes[1].descriptorCount = 1;
writes[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
writes[1].pImageInfo = &greenTex;
writes[1].dstArrayElement = 0;
vkUpdateDescriptorSets(info.device, 2, writes, 0, NULL);
writes[0].dstSet = writes[1].dstSet = info.desc_set[1];
writes[1].pImageInfo = &lunargTex;
vkUpdateDescriptorSets(info.device, 2, writes, 0, NULL);
/* VULKAN_KEY_START */
// create four secondary command buffers, for each quadrant of the screen
VkCommandBufferAllocateInfo cmdalloc = {};
cmdalloc.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
cmdalloc.pNext = NULL;
cmdalloc.commandPool = info.cmd_pool;
cmdalloc.level = VK_COMMAND_BUFFER_LEVEL_SECONDARY;
cmdalloc.commandBufferCount = 4;
VkCommandBuffer secondary_cmds[4];
res = vkAllocateCommandBuffers(info.device, &cmdalloc, secondary_cmds);
assert(res == VK_SUCCESS);
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore imageAcquiredSemaphore;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT);
const VkDeviceSize offsets[1] = {0};
VkViewport viewport;
viewport.height = 200.0f;
viewport.width = 200.0f;
viewport.minDepth = (float)0.0f;
viewport.maxDepth = (float)1.0f;
viewport.x = 0;
viewport.y = 0;
VkRect2D scissor;
scissor.extent.width = info.width;
scissor.extent.height = info.height;
scissor.offset.x = 0;
scissor.offset.y = 0;
// now we record four separate command buffers, one for each quadrant of the
// screen
VkCommandBufferInheritanceInfo cmd_buf_inheritance_info = {};
cmd_buf_inheritance_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO, cmd_buf_inheritance_info.pNext = NULL;
cmd_buf_inheritance_info.renderPass = info.render_pass;
cmd_buf_inheritance_info.subpass = 0;
cmd_buf_inheritance_info.framebuffer = info.framebuffers[info.current_buffer];
cmd_buf_inheritance_info.occlusionQueryEnable = VK_FALSE;
cmd_buf_inheritance_info.queryFlags = 0;
cmd_buf_inheritance_info.pipelineStatistics = 0;
VkCommandBufferBeginInfo secondary_begin = {};
secondary_begin.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
secondary_begin.pNext = NULL;
secondary_begin.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT | VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
secondary_begin.pInheritanceInfo = &cmd_buf_inheritance_info;
for (int i = 0; i < 4; i++) {
vkBeginCommandBuffer(secondary_cmds[i], &secondary_begin);
vkCmdBindPipeline(secondary_cmds[i], VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(secondary_cmds[i], VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, 1,
&info.desc_set[i == 0 || i == 3], 0, NULL);
vkCmdBindVertexBuffers(secondary_cmds[i], 0, 1, &info.vertex_buffer.buf, offsets);
viewport.x = 25.0f + 250.0f * (i % 2);
viewport.y = 25.0f + 250.0f * (i / 2);
vkCmdSetViewport(secondary_cmds[i], 0, NUM_VIEWPORTS, &viewport);
vkCmdSetScissor(secondary_cmds[i], 0, NUM_SCISSORS, &scissor);
vkCmdDraw(secondary_cmds[i], 12 * 3, 1, 0, 0);
vkEndCommandBuffer(secondary_cmds[i]);
}
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
// specifying VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS means this
// render pass may
// ONLY call vkCmdExecuteCommands
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
vkCmdExecuteCommands(info.cmd, 4, secondary_cmds);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL,
0, NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &imageAcquiredSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "secondary_command_buffer");
vkFreeCommandBuffers(info.device, info.cmd_pool, 4, secondary_cmds);
/* VULKAN_KEY_END */
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Draw Textured Cube";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_texture(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data),
sizeof(g_vb_texture_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
/* VULKAN_KEY_START */
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "drawtexturedcube");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
