707 lines
22 KiB
C++
707 lines
22 KiB
C++
/*
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* Vulkan Example - Mesh rendering
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*
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* Uses tiny obj loader (https://github.com/syoyo/tinyobjloader) by syoyo
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*
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* Note :
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* This is a basic android example. It may be integrated into the other examples at some point in the future.
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* Until then this serves as a starting point for using Vulkan on Android, with some of the functionality required
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* already moved to the example base classes (e.g. swap chain)
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*
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* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#include <assert.h>
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#include "vulkanandroid.h"
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#include "vulkanswapchain.hpp"
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#include "vulkanandroidbase.hpp"
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#include <android/asset_manager.h>
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#define TINYOBJLOADER_IMPLEMENTATION
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#include "tiny_obj_loader.h"
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#define GLM_FORCE_RADIANS
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#define GLM_FORCE_DEPTH_ZERO_TO_ONE
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#include "glm/glm.hpp"
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#include "glm/gtc/matrix_transform.hpp"
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#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "AndroidProject1.NativeActivity", __VA_ARGS__))
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#define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "AndroidProject1.NativeActivity", __VA_ARGS__))
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#define VERTEX_BUFFER_BIND_ID 0
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struct saved_state {
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glm::vec3 rotation;
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float zoom;
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};
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class VulkanExample : public VulkanAndroidExampleBase
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{
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public:
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int animating;
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struct saved_state state;
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// Vulkan
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struct Vertex {
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glm::vec3 pos;
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glm::vec3 normal;
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glm::vec3 color;
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};
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VkDescriptorSetLayout descriptorSetLayout;
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VkDescriptorSet descriptorSet;
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VkPipelineLayout pipelineLayout;
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struct {
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VkBuffer buf;
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VkDeviceMemory mem;
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VkPipelineVertexInputStateCreateInfo inputState;
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std::vector<VkVertexInputBindingDescription> bindingDescriptions;
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
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} vertices;
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struct {
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int count;
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VkBuffer buf;
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VkDeviceMemory mem;
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} indices;
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struct {
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VkBuffer buffer;
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VkDeviceMemory memory;
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VkDescriptorBufferInfo descriptor;
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} uniformDataVS;
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struct {
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glm::mat4 projection;
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glm::mat4 model;
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glm::vec4 lightPos = glm::vec4(0.0f, 0.0f, 10.0f, 1.0f);
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} uboVS;
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struct {
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VkPipeline solid;
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} pipelines;
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void initVulkan()
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{
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VulkanAndroidExampleBase::initVulkan();
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prepareVertices();
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prepareUniformBuffers();
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setupDescriptorSetLayout();
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preparePipelines();
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setupDescriptorPool();
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setupDescriptorSet();
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buildCommandBuffers();
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state.zoom = -5.0f;
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state.rotation = glm::vec3();
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prepared = true;
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}
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void cleanupVulkan()
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{
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prepared = false;
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vkDestroyPipeline(device, pipelines.solid, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vkDestroyBuffer(device, vertices.buf, nullptr);
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vkFreeMemory(device, vertices.mem, nullptr);
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vkDestroyBuffer(device, indices.buf, nullptr);
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vkFreeMemory(device, indices.mem, nullptr);
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vkDestroyBuffer(device, uniformDataVS.buffer, nullptr);
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vkFreeMemory(device, uniformDataVS.memory, nullptr);
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VulkanExample::cleanUpVulkan();
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}
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void prepareVertices()
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{
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// Load mesh from compressed asset
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AAsset* asset = AAssetManager_open(app->activity->assetManager, "models/vulkanlogo.obj", AASSET_MODE_STREAMING);
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assert(asset);
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size_t size = AAsset_getLength(asset);
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assert(size > 0);
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char *assetData = new char[size];
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AAsset_read(asset, assetData, size);
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AAsset_close(asset);
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std::stringstream assetStream(assetData);
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std::vector<tinyobj::shape_t> shapes;
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std::vector<tinyobj::material_t> materials;
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std::string objerr;
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tinyobj::MaterialFileReader matFileReader("");
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bool ret = tinyobj::LoadObj(shapes, materials, objerr, assetStream, matFileReader, true);
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LOGW("shapes %d", shapes.size());
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// Setup vertices
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float scale = 0.025f;
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std::vector<Vertex> vertexBuffer;
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std::vector<uint32_t> indexBuffer;
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for (auto& shape : shapes)
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{
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// Vertices
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for (size_t i = 0; i < shape.mesh.positions.size() / 3; i++)
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{
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Vertex v;
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v.pos[0] = shape.mesh.positions[3 * i + 0] * scale;
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v.pos[1] = -shape.mesh.positions[3 * i + 1] * scale;
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v.pos[2] = shape.mesh.positions[3 * i + 2] * scale;
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v.normal[0] = shape.mesh.normals[3 * i + 0];
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v.normal[1] = shape.mesh.normals[3 * i + 1];
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v.normal[2] = shape.mesh.normals[3 * i + 2];
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v.color = glm::vec3(1.0f, 0.0f, 0.0f);
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vertexBuffer.push_back(v);
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}
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// Indices
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for (size_t i = 0; i < shape.mesh.indices.size() / 3; i++)
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{
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indexBuffer.push_back(shape.mesh.indices[3 * i + 0]);
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indexBuffer.push_back(shape.mesh.indices[3 * i + 1]);
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indexBuffer.push_back(shape.mesh.indices[3 * i + 2]);
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}
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}
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uint32_t vertexBufferSize = vertexBuffer.size() * sizeof(Vertex);
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uint32_t indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
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VkMemoryAllocateInfo memAlloc = {};
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memAlloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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memAlloc.pNext = NULL;
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memAlloc.allocationSize = 0;
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memAlloc.memoryTypeIndex = 0;
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VkMemoryRequirements memReqs;
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VkResult err;
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void *data;
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// Generate vertex buffer
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// Setup
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VkBufferCreateInfo bufInfo = {};
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bufInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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bufInfo.pNext = NULL;
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bufInfo.size = vertexBufferSize;
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bufInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
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bufInfo.flags = 0;
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// Copy vertex data to VRAM
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memset(&vertices, 0, sizeof(vertices));
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err = vkCreateBuffer(device, &bufInfo, nullptr, &vertices.buf);
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assert(!err);
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vkGetBufferMemoryRequirements(device, vertices.buf, &memReqs);
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memAlloc.allocationSize = memReqs.size;
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getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAlloc.memoryTypeIndex);
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vkAllocateMemory(device, &memAlloc, nullptr, &vertices.mem);
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assert(!err);
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err = vkMapMemory(device, vertices.mem, 0, memAlloc.allocationSize, 0, &data);
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assert(!err);
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memcpy(data, vertexBuffer.data(), vertexBufferSize);
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vkUnmapMemory(device, vertices.mem);
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assert(!err);
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err = vkBindBufferMemory(device, vertices.buf, vertices.mem, 0);
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assert(!err);
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// Generate index buffer
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// Setup
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VkBufferCreateInfo indexbufferInfo = {};
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indexbufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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indexbufferInfo.pNext = NULL;
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indexbufferInfo.size = indexBufferSize;
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indexbufferInfo.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
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indexbufferInfo.flags = 0;
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// Copy index data to VRAM
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memset(&indices, 0, sizeof(indices));
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err = vkCreateBuffer(device, &bufInfo, nullptr, &indices.buf);
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assert(!err);
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vkGetBufferMemoryRequirements(device, indices.buf, &memReqs);
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memAlloc.allocationSize = memReqs.size;
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getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAlloc.memoryTypeIndex);
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err = vkAllocateMemory(device, &memAlloc, nullptr, &indices.mem);
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assert(!err);
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err = vkMapMemory(device, indices.mem, 0, indexBufferSize, 0, &data);
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assert(!err);
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memcpy(data, indexBuffer.data(), indexBufferSize);
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vkUnmapMemory(device, indices.mem);
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err = vkBindBufferMemory(device, indices.buf, indices.mem, 0);
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assert(!err);
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indices.count = indexBuffer.size();
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// Binding description
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vertices.bindingDescriptions.resize(1);
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vertices.bindingDescriptions[0] =
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vkTools::initializers::vertexInputBindingDescription(
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VERTEX_BUFFER_BIND_ID,
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sizeof(Vertex),
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VK_VERTEX_INPUT_RATE_VERTEX);
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// Attribute descriptions
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// Describes memory layout and shader positions
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vertices.attributeDescriptions.resize(3);
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// Location 0 : Position
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vertices.attributeDescriptions[0] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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0,
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VK_FORMAT_R32G32B32_SFLOAT,
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0);
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// Location 1 : Normal
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vertices.attributeDescriptions[1] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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1,
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VK_FORMAT_R32G32B32_SFLOAT,
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sizeof(float) * 3);
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// Location 2 : Color
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vertices.attributeDescriptions[2] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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2,
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VK_FORMAT_R32G32B32_SFLOAT,
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sizeof(float) * 6);
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// Assign to vertex buffer
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vertices.inputState.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
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vertices.inputState.pNext = NULL;
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vertices.inputState.vertexBindingDescriptionCount = vertices.bindingDescriptions.size();
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vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
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vertices.inputState.vertexAttributeDescriptionCount = vertices.attributeDescriptions.size();
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vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
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}
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void updateUniformBuffers()
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{
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// Update matrices
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uboVS.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.1f, 256.0f);
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glm::mat4 viewMatrix = glm::translate(glm::mat4(), glm::vec3(0.0f, 0.0f, state.zoom));
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uboVS.model = viewMatrix;
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uboVS.model = glm::rotate(uboVS.model, glm::radians(state.rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
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uboVS.model = glm::rotate(uboVS.model, glm::radians(state.rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
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uboVS.model = glm::rotate(uboVS.model, glm::radians(state.rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
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// Map uniform buffer and update it
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uint8_t *pData;
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VkResult err = vkMapMemory(device, uniformDataVS.memory, 0, sizeof(uboVS), 0, (void **)&pData);
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assert(!err);
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memcpy(pData, &uboVS, sizeof(uboVS));
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vkUnmapMemory(device, uniformDataVS.memory);
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assert(!err);
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}
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void prepareUniformBuffers()
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{
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// Prepare and initialize uniform buffer containing shader uniforms
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VkMemoryRequirements memReqs;
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// Vertex shader uniform buffer block
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VkBufferCreateInfo bufferInfo = {};
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VkMemoryAllocateInfo allocInfo = {};
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allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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allocInfo.pNext = NULL;
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allocInfo.allocationSize = 0;
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allocInfo.memoryTypeIndex = 0;
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VkResult err;
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bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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bufferInfo.size = sizeof(uboVS);
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bufferInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
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// Create a new buffer
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err = vkCreateBuffer(device, &bufferInfo, nullptr, &uniformDataVS.buffer);
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assert(!err);
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// Get memory requirements including size, alignment and memory type
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vkGetBufferMemoryRequirements(device, uniformDataVS.buffer, &memReqs);
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allocInfo.allocationSize = memReqs.size;
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// Gets the appropriate memory type for this type of buffer allocation
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// Only memory types that are visible to the host
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getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &allocInfo.memoryTypeIndex);
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// Allocate memory for the uniform buffer
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err = vkAllocateMemory(device, &allocInfo, nullptr, &(uniformDataVS.memory));
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assert(!err);
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// Bind memory to buffer
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err = vkBindBufferMemory(device, uniformDataVS.buffer, uniformDataVS.memory, 0);
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assert(!err);
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// Store information in the uniform's descriptor
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uniformDataVS.descriptor.buffer = uniformDataVS.buffer;
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uniformDataVS.descriptor.offset = 0;
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uniformDataVS.descriptor.range = sizeof(uboVS);
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updateUniformBuffers();
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}
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void preparePipelines()
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{
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VkResult err;
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
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vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
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VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
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0,
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VK_FALSE);
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VkPipelineRasterizationStateCreateInfo rasterizationState =
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vkTools::initializers::pipelineRasterizationStateCreateInfo(
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VK_POLYGON_MODE_FILL,
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VK_CULL_MODE_NONE,
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VK_FRONT_FACE_COUNTER_CLOCKWISE,
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0);
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VkPipelineColorBlendAttachmentState blendAttachmentState =
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vkTools::initializers::pipelineColorBlendAttachmentState(
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0xf,
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VK_FALSE);
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VkPipelineColorBlendStateCreateInfo colorBlendState =
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vkTools::initializers::pipelineColorBlendStateCreateInfo(
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1,
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&blendAttachmentState);
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VkPipelineDepthStencilStateCreateInfo depthStencilState =
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vkTools::initializers::pipelineDepthStencilStateCreateInfo(
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VK_TRUE,
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VK_TRUE,
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VK_COMPARE_OP_LESS_OR_EQUAL);
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VkPipelineViewportStateCreateInfo viewportState =
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vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
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VkPipelineMultisampleStateCreateInfo multisampleState =
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vkTools::initializers::pipelineMultisampleStateCreateInfo(
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VK_SAMPLE_COUNT_1_BIT,
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0);
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std::vector<VkDynamicState> dynamicStateEnables;
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dynamicStateEnables.push_back(VK_DYNAMIC_STATE_VIEWPORT);
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dynamicStateEnables.push_back(VK_DYNAMIC_STATE_SCISSOR);
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VkPipelineDynamicStateCreateInfo dynamicState =
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vkTools::initializers::pipelineDynamicStateCreateInfo(
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dynamicStateEnables.data(),
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dynamicStateEnables.size(),
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0);
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// Rendering pipeline
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// Load shaders
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std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
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shaderStages[0] = loadShader("shaders/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader("shaders/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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VkGraphicsPipelineCreateInfo pipelineCreateInfo =
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vkTools::initializers::pipelineCreateInfo(
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pipelineLayout,
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renderPass,
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0);
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pipelineCreateInfo.pVertexInputState = &vertices.inputState;
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pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
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pipelineCreateInfo.pRasterizationState = &rasterizationState;
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pipelineCreateInfo.pColorBlendState = &colorBlendState;
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pipelineCreateInfo.pMultisampleState = &multisampleState;
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pipelineCreateInfo.pViewportState = &viewportState;
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pipelineCreateInfo.pDepthStencilState = &depthStencilState;
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pipelineCreateInfo.pDynamicState = &dynamicState;
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pipelineCreateInfo.stageCount = shaderStages.size();
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pipelineCreateInfo.pStages = shaderStages.data();
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pipelineCreateInfo.renderPass = renderPass;
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err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solid);
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assert(!err);
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}
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void setupDescriptorPool()
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{
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std::vector<VkDescriptorPoolSize> poolSizes;
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poolSizes.push_back(vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1));
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VkDescriptorPoolCreateInfo descriptorPoolInfo =
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vkTools::initializers::descriptorPoolCreateInfo(
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poolSizes.size(),
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poolSizes.data(),
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2);
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VkResult vkRes = vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool);
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assert(!vkRes);
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}
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void setupDescriptorSetLayout()
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{
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std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings;
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setLayoutBindings.push_back(
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// Binding 0 : Vertex shader uniform buffer
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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VK_SHADER_STAGE_VERTEX_BIT,
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0));
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VkDescriptorSetLayoutCreateInfo descriptorLayout =
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vkTools::initializers::descriptorSetLayoutCreateInfo(
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setLayoutBindings.data(),
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setLayoutBindings.size());
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VkResult err = vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout);
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assert(!err);
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VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
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vkTools::initializers::pipelineLayoutCreateInfo(
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&descriptorSetLayout,
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1);
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err = vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout);
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assert(!err);
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}
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void setupDescriptorSet()
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{
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VkDescriptorSetAllocateInfo allocInfo =
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vkTools::initializers::descriptorSetAllocateInfo(
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descriptorPool,
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&descriptorSetLayout,
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1);
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VkResult vkRes = vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet);
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assert(!vkRes);
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std::vector<VkWriteDescriptorSet> writeDescriptorSets;
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writeDescriptorSets.push_back(
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// Binding 0 : Vertex shader uniform buffer
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vkTools::initializers::writeDescriptorSet(
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descriptorSet,
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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0,
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&uniformDataVS.descriptor));
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vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
|
}
|
|
|
|
void buildCommandBuffers()
|
|
{
|
|
VkCommandBufferBeginInfo cmdBufInfo = {};
|
|
cmdBufInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
|
|
cmdBufInfo.pNext = NULL;
|
|
|
|
VkClearValue clearValues[2];
|
|
clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 1.0f } };
|
|
clearValues[1].depthStencil = { 1.0f, 0 };
|
|
|
|
VkRenderPassBeginInfo renderPassBeginInfo = {};
|
|
renderPassBeginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
|
|
renderPassBeginInfo.pNext = NULL;
|
|
renderPassBeginInfo.renderPass = renderPass;
|
|
renderPassBeginInfo.renderArea.offset.x = 0;
|
|
renderPassBeginInfo.renderArea.offset.y = 0;
|
|
renderPassBeginInfo.renderArea.extent.width = width;
|
|
renderPassBeginInfo.renderArea.extent.height = height;
|
|
renderPassBeginInfo.clearValueCount = 2;
|
|
renderPassBeginInfo.pClearValues = clearValues;
|
|
|
|
VkResult err;
|
|
|
|
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
|
|
{
|
|
// Set target frame buffer
|
|
renderPassBeginInfo.framebuffer = frameBuffers[i];
|
|
|
|
err = vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo);
|
|
assert(!err);
|
|
|
|
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
|
|
|
// Update dynamic viewport state
|
|
VkViewport viewport = {};
|
|
viewport.height = (float)height;
|
|
viewport.width = (float)width;
|
|
viewport.minDepth = (float) 0.0f;
|
|
viewport.maxDepth = (float) 1.0f;
|
|
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
|
|
|
|
// Update dynamic scissor state
|
|
VkRect2D scissor = {};
|
|
scissor.extent.width = width;
|
|
scissor.extent.height = height;
|
|
scissor.offset.x = 0;
|
|
scissor.offset.y = 0;
|
|
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
|
|
|
|
// Bind descriptor sets describing shader binding points
|
|
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
|
|
|
|
// Bind the rendering pipeline (including the shaders)
|
|
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.solid);
|
|
|
|
// Bind triangle vertices
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &vertices.buf, offsets);
|
|
|
|
// Bind triangle indices
|
|
vkCmdBindIndexBuffer(drawCmdBuffers[i], indices.buf, 0, VK_INDEX_TYPE_UINT32);
|
|
|
|
// Draw indexed triangle
|
|
vkCmdDrawIndexed(drawCmdBuffers[i], indices.count, 1, 0, 0, 1);
|
|
|
|
vkCmdEndRenderPass(drawCmdBuffers[i]);
|
|
|
|
// Add a present memory barrier to the end of the command buffer
|
|
// This will transform the frame buffer color attachment to a
|
|
// new layout for presenting it to the windowing system integration
|
|
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 = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
|
|
prePresentBarrier.image = swapChain.buffers[i].image;
|
|
|
|
vkCmdPipelineBarrier(
|
|
drawCmdBuffers[i],
|
|
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
|
|
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
|
|
VK_FLAGS_NONE,
|
|
0, nullptr,
|
|
0, nullptr,
|
|
1, &prePresentBarrier);
|
|
|
|
err = vkEndCommandBuffer(drawCmdBuffers[i]);
|
|
assert(!err);
|
|
}
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
VkResult err;
|
|
|
|
// Get next image in the swap chain (back/front buffer)
|
|
err = swapChain.acquireNextImage(semaphores.presentComplete, ¤tBuffer);
|
|
assert(!err);
|
|
|
|
submitPostPresentBarrier(swapChain.buffers[currentBuffer].image);
|
|
|
|
VkPipelineStageFlags pipelineStages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
|
VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
|
|
submitInfo.waitSemaphoreCount = 1;
|
|
submitInfo.pWaitSemaphores = &semaphores.presentComplete;
|
|
submitInfo.commandBufferCount = 1;
|
|
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
|
submitInfo.pWaitDstStageMask = &pipelineStages;
|
|
submitInfo.signalSemaphoreCount = 1;
|
|
submitInfo.pSignalSemaphores = &semaphores.submitSignal;
|
|
|
|
// Submit to the graphics queue
|
|
err = vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE);
|
|
assert(!err);
|
|
|
|
submitPrePresentBarrier(swapChain.buffers[currentBuffer].image);
|
|
|
|
// Present the current buffer to the swap chain
|
|
// This will display the image
|
|
err = swapChain.queuePresent(queue, currentBuffer, semaphores.submitSignal);
|
|
assert(!err);
|
|
}
|
|
};
|
|
|
|
static int32_t handleInput(struct android_app* app, AInputEvent* event)
|
|
{
|
|
struct VulkanExample* vulkanExample = (struct VulkanExample*)app->userData;
|
|
if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_MOTION)
|
|
{
|
|
// todo
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void handleCommand(struct android_app* app, int32_t cmd)
|
|
{
|
|
VulkanExample* vulkanExample = (VulkanExample*)app->userData;
|
|
switch (cmd)
|
|
{
|
|
case APP_CMD_SAVE_STATE:
|
|
vulkanExample->app->savedState = malloc(sizeof(struct saved_state));
|
|
*((struct saved_state*)vulkanExample->app->savedState) = vulkanExample->state;
|
|
vulkanExample->app->savedStateSize = sizeof(struct saved_state);
|
|
break;
|
|
case APP_CMD_INIT_WINDOW:
|
|
if (vulkanExample->app->window != NULL)
|
|
{
|
|
vulkanExample->initVulkan();
|
|
assert(vulkanExample->prepared);
|
|
}
|
|
break;
|
|
case APP_CMD_LOST_FOCUS:
|
|
vulkanExample->animating = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This is the main entry point of a native application that is using
|
|
* android_native_app_glue. It runs in its own thread, with its own
|
|
* event loop for receiving input events and doing other things.
|
|
*/
|
|
void android_main(struct android_app* state)
|
|
{
|
|
VulkanExample *engine = new VulkanExample();
|
|
|
|
//memset(&engine, 0, sizeof(engine));
|
|
state->userData = engine;
|
|
state->onAppCmd = handleCommand;
|
|
state->onInputEvent = handleInput;
|
|
engine->app = state;
|
|
|
|
engine->animating = 1;
|
|
|
|
// loop waiting for stuff to do.
|
|
|
|
while (1)
|
|
{
|
|
// Read all pending events.
|
|
int ident;
|
|
int events;
|
|
struct android_poll_source* source;
|
|
|
|
while ((ident = ALooper_pollAll(engine->animating ? 0 : -1, NULL, &events, (void**)&source)) >= 0)
|
|
{
|
|
if (source != NULL)
|
|
{
|
|
source->process(state, source);
|
|
}
|
|
|
|
if (state->destroyRequested != 0)
|
|
{
|
|
engine->cleanupVulkan();
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Render frame
|
|
if (engine->prepared)
|
|
{
|
|
if (engine->animating)
|
|
{
|
|
// Update rotation
|
|
engine->state.rotation.y += 0.25f;
|
|
if (engine->state.rotation.y > 360.0f)
|
|
{
|
|
engine->state.rotation.y -= 360.0f;
|
|
|
|
}
|
|
engine->updateUniformBuffers();
|
|
}
|
|
engine->draw();
|
|
}
|
|
}
|
|
}
|