void VkApp::createBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
VDeleter<VkBuffer>& buffer, VDeleter<VkDeviceMemory>& bufferMemory){
VkBufferCreateInfo bufferInfo = {};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = size;
bufferInfo.usage = usage;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if( vkCreateBuffer(device, &bufferInfo, nullptr, &buffer) != VK_SUCCESS ){
throw std::runtime_error("failed to create buffer!");
}
VkMemoryRequirements memRequirements;
vkGetBufferMemoryRequirements(device, buffer, &memRequirements);
VkMemoryAllocateInfo allocInfo = {};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, properties);
if (vkAllocateMemory(device, &allocInfo, nullptr, &bufferMemory) != VK_SUCCESS) {
throw std::runtime_error("failed to allocate buffer memory!");
}
vkBindBufferMemory(device, buffer, bufferMemory, 0);
}
void VkHelper::createBuffer(VkDevice device, VkPhysicalDevice physicalDevice, VkDeviceSize bufferSize, VkBufferUsageFlags usageFlags, VkMemoryPropertyFlags preferedPropertyFlags, VkMemoryPropertyFlags requiredPropertyFlags, VkBuffer* bufferId, VkDeviceMemory* bufferMem)
{
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.pNext = VK_NULL_HANDLE;
bufferInfo.flags = 0;
bufferInfo.size = bufferSize;// mesh->getVertexCount() * mesh->getVertexStride();
bufferInfo.usage = usageFlags;// VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
bufferInfo.pQueueFamilyIndices = nullptr;
bufferInfo.queueFamilyIndexCount = 0;
if (vkCreateBuffer(device, &bufferInfo, nullptr, bufferId) != VK_SUCCESS)
std::runtime_error("failed to create vertex buffer.");
VkMemoryRequirements memReq;
vkGetBufferMemoryRequirements(device, *bufferId, &memReq);
//VkMemoryPropertyFlags required = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
//VkMemoryPropertyFlags prefered = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
uint32_t memType = findMemoryType(physicalDevice, memReq, requiredPropertyFlags, preferedPropertyFlags);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.pNext = VK_NULL_HANDLE;
allocInfo.allocationSize = memReq.size;
allocInfo.memoryTypeIndex = memType;
if (vkAllocateMemory(device, &allocInfo, nullptr, bufferMem) != VK_SUCCESS)
std::runtime_error("ERROR: Allocating buffer memory failed.");
if (vkBindBufferMemory(device, *bufferId, *bufferMem, 0) != VK_SUCCESS)
std::runtime_error("ERROR: Binding Memory to Buffer Failed.");
}
void VkApp::createImage(uint32_t width, uint32_t height, VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, VkMemoryPropertyFlags properties, VDeleter<VkImage>& image, VDeleter<VkDeviceMemory>& imageMemory) {
VkImageCreateInfo imageInfo = {};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.extent.width = width;
imageInfo.extent.height = height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.format = format;
imageInfo.tiling = tiling;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
imageInfo.usage = usage;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if( vkCreateImage(device, &imageInfo, nullptr, &image) != VK_SUCCESS ){
throw std::runtime_error("failed to create image!");
}
VkMemoryRequirements memRequirements;
vkGetImageMemoryRequirements(device, image, &memRequirements);
VkMemoryAllocateInfo allocInfo = {};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, properties);
if( vkAllocateMemory(device, &allocInfo, nullptr, &imageMemory) != VK_SUCCESS ){
throw std::runtime_error("failed to allocate image memory!");
}
vkBindImageMemory(device, image, imageMemory, 0);
}
