void loadAssets()
{
// Models
models.skybox.loadFromFile(vulkanDevice, getAssetPath() + "models/cube.obj", vertexLayout, 0.05f, queue);
std::vector<std::string> filenames = {"sphere.obj", "teapot.dae", "torusknot.obj"};
for (auto file : filenames) {
vks::Model model;
model.loadFromFile(vulkanDevice, getAssetPath() + "models/" + file, vertexLayout, 0.05f, queue);
models.objects.push_back(model);
}
// Load HDR texture (equirectangular projected)
// VK_FORMAT_BC6H_UFLOAT_BLOCK is a compressed 16 bit unsigned floating point format for storing HDR content
textures.envmap.loadFromFile(getAssetPath() + "textures/hdr_uffizi_bc6uf.DDS", VK_FORMAT_BC6H_UFLOAT_BLOCK, vulkanDevice, queue);
// Custom sampler with clamping adress mode
vkDestroySampler(device, textures.envmap.sampler, nullptr);
VkSamplerCreateInfo sampler{};
sampler.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.maxLod = (float)textures.envmap.mipLevels;
sampler.maxLod = 1.0f;
sampler.anisotropyEnable = VK_TRUE;
sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(vulkanDevice->logicalDevice, &sampler, nullptr, &textures.envmap.sampler));
textures.envmap.descriptor.sampler = textures.envmap.sampler;
}
void op3d::Engine::createTextureSampler()
{
VkSamplerCreateInfo samplerInfo = {};
samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.anisotropyEnable = VK_TRUE;
samplerInfo.maxAnisotropy = 1;
samplerInfo.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK;
samplerInfo.unnormalizedCoordinates = VK_FALSE;
samplerInfo.compareEnable = VK_FALSE;
samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.mipLodBias = 0.0f;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = 0.0f;
if(vkCreateSampler(device, &samplerInfo, nullptr, textureSampler.replace()) != VK_SUCCESS)
{
throw std::runtime_error("failed to create texture sampler!");
}
}
Error SamplerImpl::init(const SamplerInitInfo& ii)
{
// Fill the create cio
VkSamplerCreateInfo ci;
memset(&ci, 0, sizeof(ci));
ci.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
if(ii.m_minMagFilter == SamplingFilter::NEAREST)
{
ci.magFilter = ci.minFilter = VK_FILTER_NEAREST;
}
else
{
ANKI_ASSERT(ii.m_minMagFilter == SamplingFilter::LINEAR);
ci.magFilter = ci.minFilter = VK_FILTER_LINEAR;
}
if(ii.m_mipmapFilter == SamplingFilter::BASE || ii.m_mipmapFilter == SamplingFilter::NEAREST)
{
ci.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
}
else
{
ci.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
}
if(ii.m_repeat)
{
ci.addressModeU = ci.addressModeV = ci.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
}
else
{
ci.addressModeU = ci.addressModeV = ci.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
}
ci.mipLodBias = 0.0;
if(ii.m_anisotropyLevel > 0)
{
ci.anisotropyEnable = VK_TRUE;
ci.maxAnisotropy = ii.m_anisotropyLevel;
}
ci.compareOp = convertCompareOp(ii.m_compareOperation);
if(ci.compareOp != VK_COMPARE_OP_ALWAYS)
{
ci.compareEnable = VK_TRUE;
}
ci.minLod = ii.m_minLod;
ci.maxLod = ii.m_maxLod;
ci.unnormalizedCoordinates = VK_FALSE;
// Create
ANKI_VK_CHECK(vkCreateSampler(getDevice(), &ci, nullptr, &m_handle));
return ErrorCode::NONE;
}
VkSampler null_sampler()
{
if (g_null_sampler)
return g_null_sampler;
VkSamplerCreateInfo sampler_info = {};
sampler_info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
sampler_info.anisotropyEnable = VK_FALSE;
sampler_info.compareEnable = VK_FALSE;
sampler_info.unnormalizedCoordinates = VK_FALSE;
sampler_info.mipLodBias = 0;
sampler_info.maxAnisotropy = 0;
sampler_info.magFilter = VK_FILTER_NEAREST;
sampler_info.minFilter = VK_FILTER_NEAREST;
sampler_info.compareOp = VK_COMPARE_OP_NEVER;
sampler_info.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
vkCreateSampler(*g_current_renderer, &sampler_info, nullptr, &g_null_sampler);
return g_null_sampler;
}
VkSampler create_sampler(VkSamplerCreateInfo& info) {
VkSampler sampler;
VkResult err;
err = vkCreateSampler(_vulkan_device, &info, NULL, &sampler);
assert(!err);
return sampler;
}
void VulkanTexturedQuad::CreateSampler ()
{
VkSamplerCreateInfo samplerCreateInfo = {};
samplerCreateInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerCreateInfo.magFilter = VK_FILTER_LINEAR;
samplerCreateInfo.minFilter = VK_FILTER_LINEAR;
vkCreateSampler (device_, &samplerCreateInfo, nullptr, &sampler_);
}
void NvModelExtVK::PrepareForRendering(NvVkContext& vk,
NvModelExt* pModel)
{
VkResult result;
VkSamplerCreateInfo samplerCreateInfo = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO };
samplerCreateInfo.magFilter = VK_FILTER_LINEAR;
samplerCreateInfo.minFilter = VK_FILTER_LINEAR;
samplerCreateInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerCreateInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerCreateInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerCreateInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerCreateInfo.mipLodBias = 0.0;
samplerCreateInfo.maxAnisotropy = 1;
samplerCreateInfo.compareOp = VK_COMPARE_OP_NEVER;
samplerCreateInfo.minLod = 0.0;
samplerCreateInfo.maxLod = 16.0;
samplerCreateInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
result = vkCreateSampler(vk.device(), &samplerCreateInfo, 0, &m_linearSampler);
// Get GL usable versions of all the textures used by the model
uint32_t textureCount = m_pSourceModel->GetTextureCount();
m_textures.resize(textureCount);
for (uint32_t textureIndex = 0; textureIndex < textureCount; ++textureIndex)
{
NvVkTexture* t = new NvVkTexture;
if (vk.uploadTextureFromFile(m_pSourceModel->GetTextureName(textureIndex).c_str(), *t)) {
m_textures[textureIndex] = t;
}
}
// Get VK usable versions of all the materials in the model
uint32_t materialCount = pModel->GetMaterialCount();
m_materials.resize(materialCount);
if (materialCount > 0)
{
for (uint32_t materialIndex = 0; materialIndex < materialCount; ++materialIndex)
{
m_materials[materialIndex].InitFromMaterial(m_pSourceModel, materialIndex);
}
}
// Get VK renderable versions of all meshes in the model
uint32_t meshCount = pModel->GetMeshCount();
m_meshes.resize(meshCount);
if (meshCount > 0)
{
for (uint32_t meshIndex = 0; meshIndex < meshCount; ++meshIndex)
{
m_meshes[meshIndex] = new NvMeshExtVK;
m_meshes[meshIndex]->InitFromSubmesh(vk, pModel, meshIndex);
}
}
InitVertexState();
}
bool ObjectCache::CreateStaticSamplers()
{
VkSamplerCreateInfo create_info = {
VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO, // VkStructureType sType
nullptr, // const void* pNext
0, // VkSamplerCreateFlags flags
VK_FILTER_NEAREST, // VkFilter magFilter
VK_FILTER_NEAREST, // VkFilter minFilter
VK_SAMPLER_MIPMAP_MODE_NEAREST, // VkSamplerMipmapMode mipmapMode
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER, // VkSamplerAddressMode addressModeU
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER, // VkSamplerAddressMode addressModeV
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE, // VkSamplerAddressMode addressModeW
0.0f, // float mipLodBias
VK_FALSE, // VkBool32 anisotropyEnable
1.0f, // float maxAnisotropy
VK_FALSE, // VkBool32 compareEnable
VK_COMPARE_OP_ALWAYS, // VkCompareOp compareOp
std::numeric_limits<float>::min(), // float minLod
std::numeric_limits<float>::max(), // float maxLod
VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK, // VkBorderColor borderColor
VK_FALSE // VkBool32 unnormalizedCoordinates
};
VkResult res =
vkCreateSampler(g_vulkan_context->GetDevice(), &create_info, nullptr, &m_point_sampler);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateSampler failed: ");
return false;
}
// Most fields are shared across point<->linear samplers, so only change those necessary.
create_info.minFilter = VK_FILTER_LINEAR;
create_info.magFilter = VK_FILTER_LINEAR;
create_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
res = vkCreateSampler(g_vulkan_context->GetDevice(), &create_info, nullptr, &m_linear_sampler);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateSampler failed: ");
return false;
}
return true;
}
VkSampler ObjectCache::GetSampler(const SamplerState& info)
{
auto iter = m_sampler_cache.find(info);
if (iter != m_sampler_cache.end())
return iter->second;
static constexpr std::array<VkFilter, 4> filters = {{VK_FILTER_NEAREST, VK_FILTER_LINEAR}};
static constexpr std::array<VkSamplerMipmapMode, 2> mipmap_modes = {
{VK_SAMPLER_MIPMAP_MODE_NEAREST, VK_SAMPLER_MIPMAP_MODE_LINEAR}};
static constexpr std::array<VkSamplerAddressMode, 4> address_modes = {
{VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE, VK_SAMPLER_ADDRESS_MODE_REPEAT,
VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT}};
VkSamplerCreateInfo create_info = {
VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO, // VkStructureType sType
nullptr, // const void* pNext
0, // VkSamplerCreateFlags flags
filters[static_cast<u32>(info.mag_filter.Value())], // VkFilter magFilter
filters[static_cast<u32>(info.min_filter.Value())], // VkFilter minFilter
mipmap_modes[static_cast<u32>(info.mipmap_filter.Value())], // VkSamplerMipmapMode mipmapMode
address_modes[static_cast<u32>(info.wrap_u.Value())], // VkSamplerAddressMode addressModeU
address_modes[static_cast<u32>(info.wrap_v.Value())], // VkSamplerAddressMode addressModeV
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE, // VkSamplerAddressMode addressModeW
info.lod_bias / 256.0f, // float mipLodBias
VK_FALSE, // VkBool32 anisotropyEnable
0.0f, // float maxAnisotropy
VK_FALSE, // VkBool32 compareEnable
VK_COMPARE_OP_ALWAYS, // VkCompareOp compareOp
info.min_lod / 16.0f, // float minLod
info.max_lod / 16.0f, // float maxLod
VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK, // VkBorderColor borderColor
VK_FALSE // VkBool32 unnormalizedCoordinates
};
// Can we use anisotropic filtering with this sampler?
if (info.anisotropic_filtering && g_vulkan_context->SupportsAnisotropicFiltering())
{
// Cap anisotropy to device limits.
create_info.anisotropyEnable = VK_TRUE;
create_info.maxAnisotropy = std::min(static_cast<float>(1 << g_ActiveConfig.iMaxAnisotropy),
g_vulkan_context->GetMaxSamplerAnisotropy());
}
VkSampler sampler = VK_NULL_HANDLE;
VkResult res = vkCreateSampler(g_vulkan_context->GetDevice(), &create_info, nullptr, &sampler);
if (res != VK_SUCCESS)
LOG_VULKAN_ERROR(res, "vkCreateSampler failed: ");
// Store it even if it failed
m_sampler_cache.emplace(info, sampler);
return sampler;
}
void Copy_To_Swapchain::create() {
set_layout = Descriptor_Set_Layout()
.sampler (0, VK_SHADER_STAGE_COMPUTE_BIT)
.sampled_image (1, VK_SHADER_STAGE_COMPUTE_BIT)
.storage_image (2, VK_SHADER_STAGE_COMPUTE_BIT)
.create ("copy_to_swapchain_set_layout");
// pipeline layout
{
VkPushConstantRange range;
range.stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
range.offset = 0;
range.size = 8; // uint32 width + uint32 height
VkPipelineLayoutCreateInfo create_info { VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO };
create_info.setLayoutCount = 1;
create_info.pSetLayouts = &set_layout;
create_info.pushConstantRangeCount = 1;
create_info.pPushConstantRanges = ⦥
VK_CHECK(vkCreatePipelineLayout(vk.device, &create_info, nullptr, &pipeline_layout));
}
// pipeline
{
VkShaderModule copy_shader = vk_load_spirv("spirv/copy_to_swapchain.comp.spv");
VkPipelineShaderStageCreateInfo compute_stage { VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO };
compute_stage.stage = VK_SHADER_STAGE_COMPUTE_BIT;
compute_stage.module = copy_shader;
compute_stage.pName = "main";
VkComputePipelineCreateInfo create_info{ VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO };
create_info.stage = compute_stage;
create_info.layout = pipeline_layout;
VK_CHECK(vkCreateComputePipelines(vk.device, VK_NULL_HANDLE, 1, &create_info, nullptr, &pipeline));
vkDestroyShaderModule(vk.device, copy_shader, nullptr);
}
// point sampler
{
VkSamplerCreateInfo create_info { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO };
VK_CHECK(vkCreateSampler(vk.device, &create_info, nullptr, &point_sampler));
vk_set_debug_name(point_sampler, "point_sampler");
}
}
bool game_buffer_editor_create(game_buffer_editor_create_info *game_buffer_editor_create_info, game_buffer_editor *game_buffer_editor) {
ImGuiIO *imgui_io = &ImGui::GetIO();
vulkan_image_2d_bgra_srgb imgui_white_vulkan_image = {};
vulkan_image_2d_bgra_srgb imgui_font_atlas_vulkan_image = {};
vulkan_buffer imgui_vertex_index_vulkan_buffer = {};
VkResult vk_result = {};
VkPipeline imgui_vulkan_pipeline = {};
VkDescriptorSetLayout imgui_vulkan_pipeline_descriptor_set_layout = {};
VkPipelineLayout imgui_vulkan_pipeline_layout;
VkDescriptorPool imgui_vulkan_descriptor_pool = {};
VkDescriptorSet imgui_vulkan_descriptor_sets[2] = {};
{
{
game_buffer_editor_create_info->set_imgui_keymap(imgui_io);
imgui_io->DisplaySize.x = (float)game_buffer_editor_create_info->game_buffer->vulkan_framebuffer_image_width;
imgui_io->DisplaySize.y = (float)game_buffer_editor_create_info->game_buffer->vulkan_framebuffer_image_height;
imgui_io->IniFilename = game_buffer_editor_create_info->imgui_init_file;
imgui_io->MousePos = {-1, -1};
{
uint8 white_image_data[4 * 4 * 4];
memset(white_image_data, 0xFF, sizeof(white_image_data));
if (!vulkan_image_2d_bgra_srgb_create(game_buffer_editor_create_info->vulkan->device, &game_buffer_editor_create_info->vulkan->physical_device_memory_properties,
white_image_data, 4, 4, VK_IMAGE_USAGE_SAMPLED_BIT, &imgui_white_vulkan_image)) {
return false;
}
if (!imgui_io->Fonts->AddFontFromFileTTF(game_buffer_editor_create_info->imgui_font_file, (float)game_buffer_editor_create_info->imgui_font_size)) {
return false;
}
unsigned char* font_atlas;
int font_atlas_width;
int font_atlas_height;
imgui_io->Fonts->GetTexDataAsRGBA32(&font_atlas, &font_atlas_width, &font_atlas_height);
if (!vulkan_image_2d_bgra_srgb_create(game_buffer_editor_create_info->vulkan->device, &game_buffer_editor_create_info->vulkan->physical_device_memory_properties,
font_atlas, font_atlas_width, font_atlas_height, VK_IMAGE_USAGE_SAMPLED_BIT, &imgui_font_atlas_vulkan_image)) {
return false;
}
imgui_io->Fonts->TexID = (void *)imgui_font_atlas_vulkan_image.image;
}
if (!vulkan_buffer_create(game_buffer_editor_create_info->vulkan->device, &game_buffer_editor_create_info->vulkan->physical_device_memory_properties,
m_megabytes(16), VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &imgui_vertex_index_vulkan_buffer)) {
return false;
}
}
{
VkPipelineShaderStageCreateInfo shader_stage_create_infos[2] = { { VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO }, { VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO } };
shader_stage_create_infos[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
shader_stage_create_infos[0].module = game_buffer_editor_create_info->imgui_vulkan_shaders[0];
shader_stage_create_infos[0].pName = "main";
shader_stage_create_infos[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
shader_stage_create_infos[1].module = game_buffer_editor_create_info->imgui_vulkan_shaders[1];
shader_stage_create_infos[1].pName = "main";
VkVertexInputBindingDescription vertex_input_binding_description = { 0, sizeof(ImDrawVert), VK_VERTEX_INPUT_RATE_VERTEX };
VkVertexInputAttributeDescription vertex_input_attribute_descriptions[3] = { { 0, 0, VK_FORMAT_R32G32_SFLOAT, 0 }, { 1, 0, VK_FORMAT_R32G32_SFLOAT, 8 }, { 2, 0, VK_FORMAT_R8G8B8A8_UNORM, 16 } };
VkPipelineVertexInputStateCreateInfo vertex_input_state_info = { VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO };
vertex_input_state_info.vertexBindingDescriptionCount = 1;
vertex_input_state_info.pVertexBindingDescriptions = &vertex_input_binding_description;
vertex_input_state_info.vertexAttributeDescriptionCount = m_countof(vertex_input_attribute_descriptions);
vertex_input_state_info.pVertexAttributeDescriptions = vertex_input_attribute_descriptions;
VkPipelineInputAssemblyStateCreateInfo input_assembly_state_info = { VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO };
input_assembly_state_info.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
VkPipelineViewportStateCreateInfo viewport_state_info = { VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO };
viewport_state_info.viewportCount = 1;
viewport_state_info.scissorCount = 1;
VkViewport viewport = {};
VkRect2D scissor = {};
viewport_state_info.pViewports = &viewport;
viewport_state_info.pScissors = &scissor;
VkPipelineRasterizationStateCreateInfo rasterization_state_info = { VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO };
rasterization_state_info.polygonMode = VK_POLYGON_MODE_FILL;
rasterization_state_info.cullMode = VK_CULL_MODE_BACK_BIT;
rasterization_state_info.frontFace = VK_FRONT_FACE_CLOCKWISE;
rasterization_state_info.lineWidth = 1;
VkPipelineMultisampleStateCreateInfo multisample_state_info = { VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO };
multisample_state_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPipelineDepthStencilStateCreateInfo depth_stencil_state_info = { VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO };
VkPipelineColorBlendStateCreateInfo color_blend_state_info = { VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO };
color_blend_state_info.attachmentCount = 1;
VkPipelineColorBlendAttachmentState color_blend_attachment_state = {};
color_blend_attachment_state.blendEnable = VK_TRUE;
color_blend_attachment_state.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
color_blend_attachment_state.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
color_blend_attachment_state.colorBlendOp = VK_BLEND_OP_ADD;
color_blend_attachment_state.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
color_blend_attachment_state.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
color_blend_attachment_state.alphaBlendOp = VK_BLEND_OP_ADD;
color_blend_attachment_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
color_blend_state_info.pAttachments = &color_blend_attachment_state;
VkPipelineDynamicStateCreateInfo dynamic_state_info = { VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO };
dynamic_state_info.dynamicStateCount = 2;
VkDynamicState dynamic_states[2] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
dynamic_state_info.pDynamicStates = dynamic_states;
VkDescriptorSetLayoutBinding descriptor_set_layout_binding = { 0, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, VK_SHADER_STAGE_FRAGMENT_BIT, nullptr };
VkDescriptorSetLayoutCreateInfo descriptor_set_layout_create_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO };
descriptor_set_layout_create_info.bindingCount = 1;
descriptor_set_layout_create_info.pBindings = &descriptor_set_layout_binding;
if ((vk_result = vkCreateDescriptorSetLayout(game_buffer_editor_create_info->vulkan->device, &descriptor_set_layout_create_info, nullptr, &imgui_vulkan_pipeline_descriptor_set_layout)) != VK_SUCCESS) {
return false;
}
VkPipelineLayoutCreateInfo pipeline_layout_create_info = { VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO };
pipeline_layout_create_info.setLayoutCount = 1;
pipeline_layout_create_info.pSetLayouts = &imgui_vulkan_pipeline_descriptor_set_layout;
VkPushConstantRange push_constant_range = { VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(mat4) };
pipeline_layout_create_info.pushConstantRangeCount = 1;
pipeline_layout_create_info.pPushConstantRanges = &push_constant_range;
if((vk_result = vkCreatePipelineLayout(game_buffer_editor_create_info->vulkan->device, &pipeline_layout_create_info, nullptr, &imgui_vulkan_pipeline_layout)) != VK_SUCCESS) {
return false;
}
VkGraphicsPipelineCreateInfo pipeline_info = { VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO };
pipeline_info.stageCount = m_countof(shader_stage_create_infos);
pipeline_info.pStages = shader_stage_create_infos;
pipeline_info.pVertexInputState = &vertex_input_state_info;
pipeline_info.pInputAssemblyState = &input_assembly_state_info;
pipeline_info.pViewportState = &viewport_state_info;
pipeline_info.pRasterizationState = &rasterization_state_info;
pipeline_info.pMultisampleState = &multisample_state_info;
pipeline_info.pDepthStencilState = &depth_stencil_state_info;
pipeline_info.pColorBlendState = &color_blend_state_info;
pipeline_info.pDynamicState = &dynamic_state_info;
pipeline_info.layout = imgui_vulkan_pipeline_layout;
pipeline_info.renderPass = game_buffer_editor_create_info->game_buffer->vulkan_render_pass;
pipeline_info.basePipelineIndex = -1;
if((vk_result = vkCreateGraphicsPipelines(game_buffer_editor_create_info->vulkan->device, VK_NULL_HANDLE, 1, &pipeline_info, nullptr, &imgui_vulkan_pipeline)) != VK_SUCCESS) {
return false;
}
}
{
VkDescriptorPoolCreateInfo descriptor_pool_create_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO };
descriptor_pool_create_info.maxSets = 2;
descriptor_pool_create_info.poolSizeCount = 2;
VkDescriptorPoolSize descriptor_pool_sizes[2] = { { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 }, { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 } };
descriptor_pool_create_info.pPoolSizes = descriptor_pool_sizes;
if ((vk_result = vkCreateDescriptorPool(game_buffer_editor_create_info->vulkan->device, &descriptor_pool_create_info, nullptr, &imgui_vulkan_descriptor_pool)) != VK_SUCCESS) {
return false;
}
VkDescriptorSetAllocateInfo descriptor_set_allocate_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO };
descriptor_set_allocate_info.descriptorPool = imgui_vulkan_descriptor_pool;
descriptor_set_allocate_info.descriptorSetCount = 2;
VkDescriptorSetLayout descriptor_set_layouts[2] = { imgui_vulkan_pipeline_descriptor_set_layout, imgui_vulkan_pipeline_descriptor_set_layout };
descriptor_set_allocate_info.pSetLayouts = descriptor_set_layouts;
if ((vk_result = vkAllocateDescriptorSets(game_buffer_editor_create_info->vulkan->device, &descriptor_set_allocate_info, imgui_vulkan_descriptor_sets)) != VK_SUCCESS) {
return false;
}
VkSamplerCreateInfo sampler_create_info = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO };
sampler_create_info.magFilter = VK_FILTER_LINEAR;
sampler_create_info.minFilter = VK_FILTER_LINEAR;
sampler_create_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler_create_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
sampler_create_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
sampler_create_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
VkSampler sampler = {};
if ((vk_result = vkCreateSampler(game_buffer_editor_create_info->vulkan->device, &sampler_create_info, nullptr, &sampler)) != VK_SUCCESS) {
return false;
}
VkWriteDescriptorSet write_descriptor_sets[2] = { { VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET }, { VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET } };
write_descriptor_sets[0].dstSet = imgui_vulkan_descriptor_sets[0];
write_descriptor_sets[0].descriptorCount = 1;
write_descriptor_sets[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
VkDescriptorImageInfo descriptor_image_info_0 = { sampler, imgui_font_atlas_vulkan_image.view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL };
write_descriptor_sets[0].pImageInfo = &descriptor_image_info_0;
write_descriptor_sets[1].dstSet = imgui_vulkan_descriptor_sets[1];
write_descriptor_sets[1].descriptorCount = 1;
write_descriptor_sets[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
VkDescriptorImageInfo descriptor_image_info_1 = { sampler, imgui_white_vulkan_image.view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL };
write_descriptor_sets[1].pImageInfo = &descriptor_image_info_1;
vkUpdateDescriptorSets(game_buffer_editor_create_info->vulkan->device, 2, write_descriptor_sets, 0, nullptr);
}
}
string_ring_buffer message_string_ring_buffer = {};
memory_pool job_memory_pool = {};
memory_pool job_message_memory_pool = {};
{
string_ring_buffer_create(&game_buffer_editor_create_info->game_buffer->memory_arena, 256, 2048, &message_string_ring_buffer);
memory_pool_create<game_buffer_editor_job>(&game_buffer_editor_create_info->game_buffer->memory_arena, 32, &job_memory_pool);
memory_pool_create<game_buffer_editor_job_message>(&game_buffer_editor_create_info->game_buffer->memory_arena, 32 * 32, &job_message_memory_pool);
}
{
game_buffer_editor->imgui_io = imgui_io;
game_buffer_editor->imgui_white_vulkan_image = imgui_white_vulkan_image;
game_buffer_editor->imgui_font_atlas_vulkan_image = imgui_font_atlas_vulkan_image;
game_buffer_editor->imgui_vertex_index_vulkan_buffer = imgui_vertex_index_vulkan_buffer;
game_buffer_editor->imgui_vulkan_pipeline = imgui_vulkan_pipeline;
game_buffer_editor->imgui_vulkan_pipeline_layout = imgui_vulkan_pipeline_layout;
game_buffer_editor->imgui_vulkan_descriptor_pool = imgui_vulkan_descriptor_pool;
m_array_assign(game_buffer_editor->imgui_vulkan_descriptor_sets, imgui_vulkan_descriptor_sets);
game_buffer_editor->message_string_ring_buffer = message_string_ring_buffer;
game_buffer_editor->job_memory_pool = job_memory_pool;
game_buffer_editor->job_message_memory_pool = job_message_memory_pool;
}
return true;
}
bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
{
VkResult err;
VkShaderModule vert_module;
VkShaderModule frag_module;
// Create The Shader Modules:
{
VkShaderModuleCreateInfo vert_info = {};
vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
vert_info.codeSize = __glsl_shader_vert_spv_len;
vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv;
err = vkCreateShaderModule(g_Device, &vert_info, g_Allocator, &vert_module);
ImGui_ImplGlfwVulkan_VkResult(err);
VkShaderModuleCreateInfo frag_info = {};
frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
frag_info.codeSize = __glsl_shader_frag_spv_len;
frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv;
err = vkCreateShaderModule(g_Device, &frag_info, g_Allocator, &frag_module);
ImGui_ImplGlfwVulkan_VkResult(err);
}
if (!g_FontSampler)
{
VkSamplerCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
info.magFilter = VK_FILTER_LINEAR;
info.minFilter = VK_FILTER_LINEAR;
info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
info.minLod = -1000;
info.maxLod = 1000;
err = vkCreateSampler(g_Device, &info, g_Allocator, &g_FontSampler);
ImGui_ImplGlfwVulkan_VkResult(err);
}
if (!g_DescriptorSetLayout)
{
VkSampler sampler[1] = {g_FontSampler};
VkDescriptorSetLayoutBinding binding[1] = {};
binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
binding[0].descriptorCount = 1;
binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
binding[0].pImmutableSamplers = sampler;
VkDescriptorSetLayoutCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
info.bindingCount = 1;
info.pBindings = binding;
err = vkCreateDescriptorSetLayout(g_Device, &info, g_Allocator, &g_DescriptorSetLayout);
ImGui_ImplGlfwVulkan_VkResult(err);
}
// Create Descriptor Set:
{
VkDescriptorSetAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = g_DescriptorPool;
alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &g_DescriptorSetLayout;
err = vkAllocateDescriptorSets(g_Device, &alloc_info, &g_DescriptorSet);
ImGui_ImplGlfwVulkan_VkResult(err);
}
if (!g_PipelineLayout)
{
VkPushConstantRange push_constants[1] = {};
push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
push_constants[0].offset = sizeof(float) * 0;
push_constants[0].size = sizeof(float) * 4;
VkDescriptorSetLayout set_layout[1] = {g_DescriptorSetLayout};
VkPipelineLayoutCreateInfo layout_info = {};
layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
layout_info.setLayoutCount = 1;
layout_info.pSetLayouts = set_layout;
layout_info.pushConstantRangeCount = 1;
layout_info.pPushConstantRanges = push_constants;
err = vkCreatePipelineLayout(g_Device, &layout_info, g_Allocator, &g_PipelineLayout);
ImGui_ImplGlfwVulkan_VkResult(err);
}
VkPipelineShaderStageCreateInfo stage[2] = {};
stage[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
stage[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
stage[0].module = vert_module;
stage[0].pName = "main";
stage[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
stage[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
stage[1].module = frag_module;
stage[1].pName = "main";
VkVertexInputBindingDescription binding_desc[1] = {};
binding_desc[0].stride = sizeof(ImDrawVert);
binding_desc[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
VkVertexInputAttributeDescription attribute_desc[3] = {};
attribute_desc[0].location = 0;
attribute_desc[0].binding = binding_desc[0].binding;
attribute_desc[0].format = VK_FORMAT_R32G32_SFLOAT;
attribute_desc[0].offset = (size_t)(&((ImDrawVert*)0)->pos);
attribute_desc[1].location = 1;
attribute_desc[1].binding = binding_desc[0].binding;
attribute_desc[1].format = VK_FORMAT_R32G32_SFLOAT;
attribute_desc[1].offset = (size_t)(&((ImDrawVert*)0)->uv);
attribute_desc[2].location = 2;
attribute_desc[2].binding = binding_desc[0].binding;
attribute_desc[2].format = VK_FORMAT_R8G8B8A8_UNORM;
attribute_desc[2].offset = (size_t)(&((ImDrawVert*)0)->col);
VkPipelineVertexInputStateCreateInfo vertex_info = {};
vertex_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertex_info.vertexBindingDescriptionCount = 1;
vertex_info.pVertexBindingDescriptions = binding_desc;
vertex_info.vertexAttributeDescriptionCount = 3;
vertex_info.pVertexAttributeDescriptions = attribute_desc;
VkPipelineInputAssemblyStateCreateInfo ia_info = {};
ia_info.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
ia_info.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
VkPipelineViewportStateCreateInfo viewport_info = {};
viewport_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewport_info.viewportCount = 1;
viewport_info.scissorCount = 1;
VkPipelineRasterizationStateCreateInfo raster_info = {};
raster_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
raster_info.polygonMode = VK_POLYGON_MODE_FILL;
raster_info.cullMode = VK_CULL_MODE_NONE;
raster_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
raster_info.lineWidth = 1.0f;
VkPipelineMultisampleStateCreateInfo ms_info = {};
ms_info.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
ms_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPipelineColorBlendAttachmentState color_attachment[1] = {};
color_attachment[0].blendEnable = VK_TRUE;
color_attachment[0].srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
color_attachment[0].dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
color_attachment[0].colorBlendOp = VK_BLEND_OP_ADD;
color_attachment[0].srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
color_attachment[0].dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
color_attachment[0].alphaBlendOp = VK_BLEND_OP_ADD;
color_attachment[0].colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
VkPipelineDepthStencilStateCreateInfo depth_info = {};
depth_info.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
VkPipelineColorBlendStateCreateInfo blend_info = {};
blend_info.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
blend_info.attachmentCount = 1;
blend_info.pAttachments = color_attachment;
VkDynamicState dynamic_states[2] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
VkPipelineDynamicStateCreateInfo dynamic_state = {};
dynamic_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamic_state.dynamicStateCount = 2;
dynamic_state.pDynamicStates = dynamic_states;
VkGraphicsPipelineCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
info.flags = g_PipelineCreateFlags;
info.stageCount = 2;
info.pStages = stage;
info.pVertexInputState = &vertex_info;
info.pInputAssemblyState = &ia_info;
info.pViewportState = &viewport_info;
info.pRasterizationState = &raster_info;
info.pMultisampleState = &ms_info;
info.pDepthStencilState = &depth_info;
info.pColorBlendState = &blend_info;
info.pDynamicState = &dynamic_state;
info.layout = g_PipelineLayout;
info.renderPass = g_RenderPass;
err = vkCreateGraphicsPipelines(g_Device, g_PipelineCache, 1, &info, g_Allocator, &g_Pipeline);
ImGui_ImplGlfwVulkan_VkResult(err);
vkDestroyShaderModule(g_Device, vert_module, g_Allocator);
vkDestroyShaderModule(g_Device, frag_module, g_Allocator);
return true;
}
tut1_error tut7_create_images(struct tut1_physical_device *phy_dev, struct tut2_device *dev,
struct tut7_image *images, uint32_t image_count)
{
/*
* In this function, we will create a bunch of images. Images in graphics serve essentially two purposes. One
* is to provide data to shaders, traditionally known as textures. Another is to render into either as the
* final result or for further use, traditionally also known as textures. Vulkan calls all of these "images",
* which are just glorified "buffers". We already worked with a Vulkan buffer in Tutorial 4, which was just an
* array of data. Images on the other hand can have up to 3 dimensions, a format (such as BGRA), multisampling
* properties, tiling properties and a layout. They are glorified buffers because all of these features can be
* emulated with buffers, although besides requiring more work in the shaders, using images also allows a lot
* more optimization by the device and its driver.
*
* That said, creating images is fairly similar to buffers. You create an image, allocate memory to it, create
* an image view for access to the image, you bind it to a command buffer through a descriptor set and go on
* using it in the shaders. Like buffers, you can choose to initialize the image. The data sent through
* images could be anything, such as textures used to draw objects, patterns used by a shader to apply an
* effect, or just general data for the shaders. The image can be written to as well. The data written to an
* image could also be for anything, such as the final colors that go on to be displayed on the screen, the
* depth or stencil data, the output of a filter used for further processing, the processed image to be
* retrieved by the application (e.g. used by gimp), a texture that evolves over time, etc.
*
* Loading the image data is outside the scope of this tutorial, so we'll leave that for another time. Once
* the image is created, it's device memory can be mapped, loaded and unmapped, so it is not necessary to do
* that in this function either.
*/
uint32_t successful = 0;
tut1_error retval = TUT1_ERROR_NONE;
VkResult res;
for (uint32_t i = 0; i < image_count; ++i)
{
images[i].image = NULL;
images[i].image_mem = NULL;
images[i].view = NULL;
images[i].sampler = NULL;
/*
* To create an image, we need a CreateInfo struct as usual. Some parts of this struct is similar to
* VkBufferCreateInfo from Tutorial 3. The ones that need explanation are explained here. The image
* type specifies what are the dimensions of the image. In these tutorial series, we will use 2D
* images for simplicity. Also for simplicity, let's ignore mipmapping and image layers. The image
* format is one of VK_FORMAT. A normal format could be VK_FORMAT_B8G8R8A8_UNORM, but it might make
* sense to use other formats, especially for images that would get their data from a texture file.
*
* If the image is going to be initialized, for example from a texture file, then the structure of the
* image data, otherwise known as "tiling", must be set to linear. This means that the image is stored
* as a normal row-major array, so that when its memory is mapped by the application, it would make
* sense! If the image is not to be initialized on the other hand, it is better to keep the tiling as
* optimal, which means whatever format the GPU likes best. It is necessary for the application to
* copy a linear image to an optimal one for GPU usage. If the application wants to read the image
* back, it must copy it from an optimal image to a linear one. This also means that the `usage` of
* the linear images can contain only TRANSFER_SRC and TRANSFER_DST bits. More on image copies when we
* actually start using them.
*
* Linear images are sampled only once. Optimal images can be multisampled. You can read about
* multisampling online (from OpenGL), but in short it asks for each pixel to be sampled at multiple
* locations inside the pixel, which helps with antialiasing. Here, we will simply choose a higher
* number of samples as allowed by the GPU (retrieved with vkGetPhysicalDeviceImageFormatProperties
* below).
*
* Linear images are also restricted to 2D, no mipmapping and no layers, which is fortunate because we
* wanted those for simplicity anyway! There is also a restriction on the format of the image, which
* cannot be depth/stencil.
*
* In Tutorial 3, we specified the buffer usage as storage, which was a rather generic specification.
* For the image, we have more options to specify the usage. Choosing the minimum usage bits for each
* image, specifying only what we actually want to do with the image allows the GPU to possibly place
* the image in the most optimal memory location, or load/unload the image at necessary times. This is
* left to the application to provide as it varies from case to case. The usages in short are:
*
* Transfer src/dst: whether the image can be used as a source/destination of an image copy.
* Sampled: whether the image can be sampled by a shader.
* Storage: whether the image can be read from and written to by a shader.
* Color attachment: whether the image can be used as a render target (for color).
* Depth/stencil attachment: whether the image can be used as a render target (for depth/stencil).
* Transient attachment: whether the image is lazily allocated (ignored for now).
* Input attachment: whether the image can be read (unfiltered) by a shader (ignored for now).
*
* If the image was to be shared between queue families, it should be declared with a special
* `sharingMode` specifying that there would be concurrent access to the image, and by which queue
* families. We are going to use the images and views created here in multiple pipelines, one for each
* swapchain image. Since those pipelines may be created on top of different queue families, we need
* to tell Vulkan that these images would be shared. At the time of this writing, on Nvidia cards
* there is only one queue family and sharing is meaningless. However, it is legal for a driver to
* expose multiple similar queue families instead of one queue family with multiple queues. The
* application is expected to provide the queue families that would use this image. Most likely, the
* result of `tut7_get_presentable_queues` is what you would want.
*
* Finally, an image has a layout. Each layout is limited in what operations can be done in it, but
* instead is optimal for a task. The possible image layouts are:
*
* Undefined: no device access is allowed. This is used as an initial layout and must be transitioned
* away from before use.
* Preinitialized: no device access is allowed. Similar to undefined, this is only an initial layout
* and must be transitioned away from before use. The only difference is that the contents of the
* image are kept during the transition.
* General: supports all types of device access.
* Color attachment optimal: only usable with color attachment images.
* Depth/stencil attachment optimal: only usable with depth/stencil attachment images.
* Depth/stencil read-only optimal: only usable with depth/stencil attachment images. The difference
* between this and the depth/stencil attachment optimal layout is that this image can also be used
* as a read-only sampled image or input attachment for use by the shaders.
* Shader read-only optimal: only usable with sampled and input attachment images. Similar to
* depth/stencil read-only optimal, this layout can be used as a read-only image or input attachment
* for use by the shaders.
* Transfer src/dst optimal: only usable with transfer src/dst images and must only be used as the
* source or destination of an image transfer.
* Present src (extension): used for presenting an image to a swapchain. An image taken from the
* swapchain is in this layout and must be transitioned away before use after
* vkAcquireNextImageKHR. Before giving the image back with vkQueuePresentKHR, it must be
* transitioned again to this layout.
*
* For linear images, which are going to be initialized by the application, we will use the
* preinitialized layout. Otherwise, the layout must be undefined and later transitioned to the
* desired layout using a pipeline barrier (more on this later).
*/
VkImageTiling tiling = VK_IMAGE_TILING_OPTIMAL;
VkSampleCountFlagBits samples = VK_SAMPLE_COUNT_1_BIT;
VkImageLayout layout = VK_IMAGE_LAYOUT_UNDEFINED;
if (images[i].will_be_initialized || images[i].host_visible)
{
images[i].usage &= VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
layout = VK_IMAGE_LAYOUT_PREINITIALIZED;
tiling = VK_IMAGE_TILING_LINEAR;
}
else if (images[i].multisample)
{
/*
* To get the format properties for an image, we need to tell Vulkan how we expect to create the image,
* i.e. what is its format, type, tiling, usage and flags (which we didn't use). We could check many
* of the parameters given to this function with the properties returned from this function, but we'll
* just take a possible sampling count out of it, and assume the parameters are fine. In a real
* application, you would want to do more validity checks.
*/
VkImageFormatProperties format_properties;
res = vkGetPhysicalDeviceImageFormatProperties(phy_dev->physical_device, images[i].format, VK_IMAGE_TYPE_2D,
tiling, images[i].usage, 0, &format_properties);
tut1_error_sub_set_vkresult(&retval, res);
if (res == 0)
{
for (uint32_t s = VK_SAMPLE_COUNT_16_BIT; s != 0; s >>= 1)
if ((format_properties.sampleCounts & s))
{
samples = s;
break;
}
}
}
/*
* Create the image with the above description as usual. The CreateInfo struct takes the parameters
* and memory allocation callbacks are not used.
*/
bool shared = images[i].sharing_queue_count > 1;
struct VkImageCreateInfo image_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.imageType = VK_IMAGE_TYPE_2D,
.format = images[i].format,
.extent = {images[i].extent.width, images[i].extent.height, 1},
.mipLevels = 1,
.arrayLayers = 1,
.samples = samples,
.tiling = tiling,
.usage = images[i].usage,
.sharingMode = shared?VK_SHARING_MODE_CONCURRENT:VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = shared?images[i].sharing_queue_count:0,
.pQueueFamilyIndices = shared?images[i].sharing_queues:NULL,
.initialLayout = layout,
};
res = vkCreateImage(dev->device, &image_info, NULL, &images[i].image);
tut1_error_sub_set_vkresult(&retval, res);
if (res)
continue;
/*
* In Tutorial 4, we created a buffer, allocated memory for it and bound the memory to the buffer.
* Images are glorified buffers and the process is similar. The same argument regarding host-coherent
* memory holds here as well. So, if the image requires device-local memory, we will look for that,
* otherwise we will look for memory that is not just host-visible, but also host-coherent.
*/
VkMemoryRequirements mem_req = {0};
vkGetImageMemoryRequirements(dev->device, images[i].image, &mem_req);
uint32_t mem_index = tut4_find_suitable_memory(phy_dev, dev, &mem_req,
images[i].host_visible?
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT:
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (mem_index >= phy_dev->memories.memoryTypeCount)
continue;
VkMemoryAllocateInfo mem_info = {
.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
.allocationSize = mem_req.size,
.memoryTypeIndex = mem_index,
};
res = vkAllocateMemory(dev->device, &mem_info, NULL, &images[i].image_mem);
tut1_error_sub_set_vkresult(&retval, res);
if (res)
continue;
res = vkBindImageMemory(dev->device, images[i].image, images[i].image_mem, 0);
tut1_error_sub_set_vkresult(&retval, res);
if (res)
continue;
if (images[i].make_view)
{
/*
* Once we have an image, we need a view on the image to be able to use it. This is just like in
* Tutorial 4 where we had a view on the buffer to work with it. In Tutorial 4, we had divided up the
* buffer for concurrent processing in the shaders, and each view looked at a specific part of the
* buffer. With images, this could also be useful, for example if one large image contains multiple
* areas of interest (such as a texture) where different shaders need to look at. However, let's keep
* things as simple as possible and create a view that is as large as the image itself.
*
* The image view's CreateInfo is largely similar to the one for buffer views. For image views, we
* need to specify which components of the image we want to view and the range is not a simple
* (offset, size) as was in the buffer view.
*
* For the components, we have the option to not only select which components (R, G, B and A) to view,
* but also to remap them (this operation is called swizzle). For example to get the value of the red
* component in place of alpha etc. The mapping for each component can be specified separately, and
* mapping 0 means identity. We are not going to remap anything, so we'll leave all fields in
* `components` be 0.
*
* The range of the image asks for which mipmap levels and image array layers we are interested in,
* which are simply both 0 because we have only one of each. As part of the range of the view, we also
* need to specify which aspect of the image we are looking it. This could be color, depth, stencil
* etc. Here, we will decide the aspect based on the image usage; if it's used as depth/stencil, we
* will set both depth and stencil aspects. Otherwise we will view the color aspect.
*/
VkImageViewCreateInfo view_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.image = images[i].image,
.viewType = VK_IMAGE_VIEW_TYPE_2D,
.format = images[i].format,
.subresourceRange = {
.aspectMask = (images[i].usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) == 0?
VK_IMAGE_ASPECT_COLOR_BIT:
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
.baseMipLevel = 0,
.levelCount = VK_REMAINING_MIP_LEVELS,
.baseArrayLayer = 0,
.layerCount = VK_REMAINING_ARRAY_LAYERS,
},
};
res = vkCreateImageView(dev->device, &view_info, NULL, &images[i].view);
tut1_error_sub_set_vkresult(&retval, res);
if (res)
continue;
}
if ((images[i].usage & VK_IMAGE_USAGE_SAMPLED_BIT))
{
/*
* If the image is going to be sampled, we can create a sampler for it as well. A sampler
* specifies how to sample an image. An image is just a glorified buffer, i.e., it's just an
* array, as I have said before as well. However, the sampler is what makes using images so
* much more powerful. When accessing a buffer, you can access each index individually. With
* a sampler, you can access an image at non-integer indices. The sampler then "filters" the
* image to provide some data for that index.
*
* The simplest example is magnification. If you sample the image at coordinates (u+0.5,v)
* where u and v are integer pixel locations, then the color you get could be the average of
* the colors (values) at coordinates (u,v) and (u+1,v). Vulkan uses the term `texel` to refer
* to these "texture" pixels.
*
* The sampler parameters are explained below:
*
* - magFilter, minFilter: what to do if asked to sample between the texels. The options are
* to take the value of the nearest texel, or interpolate between neighbors. Think about it
* as what to do if you try to zoom in or out of an image. We'll go with interpolation,
* since it's nicer.
* - mipmapMode: similarly, if the image has multiple mipmap levels, accessing between the
* levels could either interpolate between two levels or clamp to the nearest. We don't use
* mipmaps here, so this doesn't matter, but let's tell it to interpolate anyway.
* - addressModeU/V/W: this specifies what happens if you access outside the image. The
* options are to:
* * repeat the image as if it was a tiled to infinity in each direction,
* * mirrored repeat the image as if a larger image containing the image and its mirror
* was tiled to infinity in each direction,
* * clamp to edge so that any access out of the image boundaries returns the value at the
* closest point on the edge of the image,
* * clamp to border so that any access out of the image boundaries returns a special
* "border" value for the image (border value defined below),
* * mirrored clamp to edge so that any access out of the image boundaries returns the value
* at the closest point on the edge of a larger image that is made up of the image and its
* mirror.
* Each of these modes is useful in different situations. "Repeat" is probably the most
* problematic as it introduces discontinuity around the edges. "Mirrored" solves this
* problem and can add some interesting effects. "Clamp to edge" also solves this problem,
* and let's just use that. "Clamp to border" would introduce other edges, and I imagine is
* most useful for debugging.
* - anisotropyEnable, maxAnisotropy: whether anisotropic filtering is enabled and by how
* much. Anisotropic filtering is expensive but nice, so let's enable it. The maximum value
* for anisotropic filtering can be retrieved from the device's limits.
* - compareEnable, compareOp: this is used with depth images to result in a reading of 0 or 1
* based on the result of a compare operation. We are not interested in this for now.
* - minLod, maxLod: the level-of-detail value (mip level) gets clamped to these values. We
* are not using mipmapped images, so we'll just give 0 and 1 respectively.
* - borderColor: if the "clamp to border" addressing mode was selected, out-of-bound accesses
* to the image would return the border color, which is set here. Options are limited:
* transparent, white and black. Since we're using "clamp to edge" addressing, this value is
* not used.
* - unnormalizedCoordinates: with Vulkan, you can either index the image using the
* unnormalized coordinates, so that u and v span from 0 to size of the image, or you can
* access the image using normalized coordinates, so that u and v span from 0 to 1.
* Unnormalized coordinates can be useful in some circumstances, but normalized coordinates
* lets you access the image without dealing with its sizes. Aside from that, with
* unnormalized coordinates, you are limited in the type of images you can access; only 1D
* and 2D images with a single layer and single mip level are acceptable and essentially all
* other features of the sampler must be disabled too. Needless to say, we will use
* normalized coordinates.
*/
VkSamplerCreateInfo sampler_info = {
.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
.magFilter = VK_FILTER_LINEAR,
.minFilter = VK_FILTER_LINEAR,
.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR,
.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
.anisotropyEnable = true,
.maxAnisotropy = phy_dev->properties.limits.maxSamplerAnisotropy,
.minLod = 0,
.maxLod = 1,
};
res = vkCreateSampler(dev->device, &sampler_info, NULL, &images[i].sampler);
tut1_error_sub_set_vkresult(&retval, res);
if (res)
continue;
}
++successful;
}
/*
* Now that you have learned all about images, we're not going to use them in this tutorial. Please don't hate
* me. There is already so much here that rendering textured images can wait. It was not all in vein though
* because we would need image views on the swapchain images anyway. Now at least you understand the
* properties and restrictions of the swapchain images better.
*/
tut1_error_set_vkresult(&retval, successful == image_count?VK_SUCCESS:VK_INCOMPLETE);
return retval;
}
// Prepare a new framebuffer and attachments for offscreen rendering (G-Buffer)
void prepareoffscreenfer()
{
{
offscreen.width = width;
offscreen.height = height;
// Color attachments
// Two floating point color buffers
createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &offscreen.color[0]);
createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &offscreen.color[1]);
// Depth attachment
createAttachment(depthFormat, VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, &offscreen.depth);
// Set up separate renderpass with references to the colorand depth attachments
std::array<VkAttachmentDescription, 3> attachmentDescs = {};
// Init attachment properties
for (uint32_t i = 0; i < 3; ++i)
{
attachmentDescs[i].samples = VK_SAMPLE_COUNT_1_BIT;
attachmentDescs[i].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachmentDescs[i].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachmentDescs[i].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachmentDescs[i].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
if (i == 2)
{
attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
}
else
{
attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
}
}
// Formats
attachmentDescs[0].format = offscreen.color[0].format;
attachmentDescs[1].format = offscreen.color[1].format;
attachmentDescs[2].format = offscreen.depth.format;
std::vector<VkAttachmentReference> colorReferences;
colorReferences.push_back({ 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
colorReferences.push_back({ 1, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
VkAttachmentReference depthReference = {};
depthReference.attachment = 2;
depthReference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.pColorAttachments = colorReferences.data();
subpass.colorAttachmentCount = 2;
subpass.pDepthStencilAttachment = &depthReference;
// Use subpass dependencies for attachment layput transitions
std::array<VkSubpassDependency, 2> dependencies;
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.pAttachments = attachmentDescs.data();
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachmentDescs.size());
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
renderPassInfo.dependencyCount = 2;
renderPassInfo.pDependencies = dependencies.data();
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreen.renderPass));
std::array<VkImageView, 3> attachments;
attachments[0] = offscreen.color[0].view;
attachments[1] = offscreen.color[1].view;
attachments[2] = offscreen.depth.view;
VkFramebufferCreateInfo fbufCreateInfo = {};
fbufCreateInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbufCreateInfo.pNext = NULL;
fbufCreateInfo.renderPass = offscreen.renderPass;
fbufCreateInfo.pAttachments = attachments.data();
fbufCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
fbufCreateInfo.width = offscreen.width;
fbufCreateInfo.height = offscreen.height;
fbufCreateInfo.layers = 1;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreen.frameBuffer));
// Create sampler to sample from the color attachments
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_NEAREST;
sampler.minFilter = VK_FILTER_NEAREST;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.minLod = 0.0f;
sampler.maxLod = 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &offscreen.sampler));
}
// Bloom separable filter pass
{
filterPass.width = width;
filterPass.height = height;
// Color attachments
// Two floating point color buffers
createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &filterPass.color[0]);
// Set up separate renderpass with references to the colorand depth attachments
std::array<VkAttachmentDescription, 1> attachmentDescs = {};
// Init attachment properties
attachmentDescs[0].samples = VK_SAMPLE_COUNT_1_BIT;
attachmentDescs[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachmentDescs[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachmentDescs[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachmentDescs[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachmentDescs[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachmentDescs[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachmentDescs[0].format = filterPass.color[0].format;
std::vector<VkAttachmentReference> colorReferences;
colorReferences.push_back({ 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.pColorAttachments = colorReferences.data();
subpass.colorAttachmentCount = 1;
// Use subpass dependencies for attachment layput transitions
std::array<VkSubpassDependency, 2> dependencies;
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.pAttachments = attachmentDescs.data();
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachmentDescs.size());
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
renderPassInfo.dependencyCount = 2;
renderPassInfo.pDependencies = dependencies.data();
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &filterPass.renderPass));
std::array<VkImageView, 1> attachments;
attachments[0] = filterPass.color[0].view;
VkFramebufferCreateInfo fbufCreateInfo = {};
fbufCreateInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbufCreateInfo.pNext = NULL;
fbufCreateInfo.renderPass = filterPass.renderPass;
fbufCreateInfo.pAttachments = attachments.data();
fbufCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
fbufCreateInfo.width = filterPass.width;
fbufCreateInfo.height = filterPass.height;
fbufCreateInfo.layers = 1;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &filterPass.frameBuffer));
// Create sampler to sample from the color attachments
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_NEAREST;
sampler.minFilter = VK_FILTER_NEAREST;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.minLod = 0.0f;
sampler.maxLod = 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &filterPass.sampler));
}
}
void VkeCubeTexture::loadTextureFiles(const char **inPath){
bool imagesOK = true;
VKA_INFO_MSG("Loading Cube Texture.\n");
for (uint32_t i = 0; i < 6; ++i){
if (!loadTexture(inPath[i], NULL, NULL, &m_width, &m_height)){
VKA_ERROR_MSG("Error loading texture image.\n");
printf("Texture : %d not available (%s).\n", i, inPath[i]);
return;
}
}
VulkanDC::Device::Queue::Name queueName = "DEFAULT_GRAPHICS_QUEUE";
VulkanDC::Device::Queue::CommandBufferID cmdID = INIT_COMMAND_ID;
VulkanDC *dc = VulkanDC::Get();
VulkanDC::Device *device = dc->getDefaultDevice();
VulkanDC::Device::Queue *queue = device->getQueue(queueName);
VkCommandBuffer cmd = VK_NULL_HANDLE;
queue->beginCommandBuffer(cmdID, &cmd, VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT);
imageCreateAndBind(
&m_data.image,
&m_data.memory,
m_format, VK_IMAGE_TYPE_2D,
m_width, m_height, 1, 6,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
(VkImageUsageFlagBits)( VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT ),
VK_IMAGE_TILING_OPTIMAL);
VkBuffer cubeMapBuffer;
VkDeviceMemory cubeMapMem;
bufferCreate(&cubeMapBuffer, m_width*m_height * 4 * 6, VK_BUFFER_USAGE_TRANSFER_SRC_BIT);
bufferAlloc(&cubeMapBuffer, &cubeMapMem, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
VkDeviceSize dSize = m_width * m_height * 4;
uint32_t rowPitch = m_width * 4;
if (m_memory_flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT){
imageSetLayoutBarrier(cmdID, queueName, m_data.image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_PREINITIALIZED, VK_IMAGE_LAYOUT_GENERAL);
for (uint32_t i = 0; i < 6; ++i){
void *data = NULL;
VkDeviceSize ofst = dSize*i;
VKA_CHECK_ERROR(vkMapMemory(getDefaultDevice(),cubeMapMem, ofst, dSize, 0, &data), "Could not map memory for image.\n");
if (!loadTexture(inPath[i], (uint8_t**)&data, rowPitch, &m_width, &m_height)){
VKA_ERROR_MSG("Could not load final image.\n");
}
vkUnmapMemory(getDefaultDevice(), cubeMapMem);
}
VkBufferImageCopy biCpyRgn[6];
for (uint32_t k = 0; k < 6; ++k){
VkDeviceSize ofst = dSize*k;
biCpyRgn[k].bufferOffset = ofst;
biCpyRgn[k].bufferImageHeight = 0;
biCpyRgn[k].bufferRowLength = 0;
biCpyRgn[k].imageExtent.width = m_width;
biCpyRgn[k].imageExtent.height = m_height;
biCpyRgn[k].imageExtent.depth = 1;
biCpyRgn[k].imageOffset.x = 0;
biCpyRgn[k].imageOffset.y = 0;
biCpyRgn[k].imageOffset.z = 0;
biCpyRgn[k].imageSubresource.baseArrayLayer = k;
biCpyRgn[k].imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
biCpyRgn[k].imageSubresource.layerCount = 1;
biCpyRgn[k].imageSubresource.mipLevel = 0;
}
VkFence copyFence;
VkFenceCreateInfo fenceInfo;
memset(&fenceInfo, 0, sizeof(fenceInfo));
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
vkCreateFence(device->getVKDevice(), &fenceInfo,NULL , ©Fence);
vkCmdCopyBufferToImage(cmd, cubeMapBuffer, m_data.image, m_data.imageLayout, 6, biCpyRgn);
queue->flushCommandBuffer(cmdID , ©Fence);
vkWaitForFences(device->getVKDevice(), 1, ©Fence, VK_TRUE, 100000000000);
vkDestroyBuffer(device->getVKDevice(), cubeMapBuffer, NULL);
vkFreeMemory(device->getVKDevice(), cubeMapMem, NULL);
}
VkSamplerCreateInfo sampler;
sampler.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
sampler.pNext = NULL;
sampler.magFilter = VK_FILTER_NEAREST;
sampler.minFilter = VK_FILTER_NEAREST;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 1;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VkImageViewCreateInfo view;
view.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view.pNext = NULL;
view.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
view.format = m_format;
view.components = {
VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A
};
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 0 };
view.subresourceRange.baseArrayLayer = 0;
view.subresourceRange.levelCount = 1;
view.subresourceRange.baseMipLevel = 0;
view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view.subresourceRange.layerCount = 1;
VKA_CHECK_ERROR(vkCreateSampler(getDefaultDevice(), &sampler,NULL, &m_data.sampler), "Could not create sampler for image texture.\n");
view.image = m_data.image;
VKA_CHECK_ERROR(vkCreateImageView(getDefaultDevice(), &view,NULL, &m_data.view), "Could not create image view for texture.\n");
VKA_INFO_MSG("Created CUBE Image Texture.\n");
}
void VkeCubeTexture::loadCubeDDS(const char *inFile){
std::string searchPaths[] = {
std::string(PROJECT_NAME),
NVPWindow::sysExePath() + std::string(PROJECT_RELDIRECTORY),
std::string(PROJECT_ABSDIRECTORY)
};
nv_dds::CDDSImage ddsImage;
for (uint32_t i = 0; i < 3; ++i){
std::string separator = "";
uint32_t strSize = searchPaths[i].size();
if(searchPaths[i].substr(strSize-1,strSize) != "/") separator = "/";
std::string filePath = searchPaths[i] + separator + std::string("images/") + std::string(inFile);
ddsImage.load(filePath, true);
if (ddsImage.is_valid()) break;
}
if (!ddsImage.is_valid()){
perror("Could not cube load texture image.\n");
exit(1);
}
uint32_t imgW = ddsImage.get_width();
uint32_t imgH = ddsImage.get_height();
uint32_t comCount = ddsImage.get_components();
uint32_t fmt = ddsImage.get_format();
bool isCube = ddsImage.is_cubemap();
bool isComp = ddsImage.is_compressed();
VkFormat vkFmt = VK_FORMAT_R8G8B8A8_UNORM;
switch (fmt){
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
vkFmt = VK_FORMAT_BC1_RGB_SRGB_BLOCK;
break;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
vkFmt = VK_FORMAT_BC2_UNORM_BLOCK;
break;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
vkFmt = VK_FORMAT_BC3_UNORM_BLOCK;
break;
default:
break;
}
m_width = imgW;
m_height = imgH;
m_format = vkFmt;
VulkanDC::Device::Queue::Name queueName = "DEFAULT_GRAPHICS_QUEUE";
VulkanDC::Device::Queue::CommandBufferID cmdID = INIT_COMMAND_ID;
VulkanDC *dc = VulkanDC::Get();
VulkanDC::Device *device = dc->getDefaultDevice();
VulkanDC::Device::Queue *queue = device->getQueue(queueName);
VkCommandBuffer cmd = VK_NULL_HANDLE;
queue->beginCommandBuffer(cmdID, &cmd, VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT);
imageCreateAndBind(
&m_data.image,
&m_data.memory,
m_format, VK_IMAGE_TYPE_2D,
m_width, m_height, 1, 6,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
(VkImageUsageFlagBits)(VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT),
VK_IMAGE_TILING_OPTIMAL);
VkBuffer cubeMapBuffer;
VkDeviceMemory cubeMapMem;
bufferCreate(&cubeMapBuffer, m_width*m_height * 3 * 6, VK_BUFFER_USAGE_TRANSFER_SRC_BIT);
bufferAlloc(&cubeMapBuffer, &cubeMapMem, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
if (m_memory_flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT){
imageSetLayoutBarrier(cmdID, queueName, m_data.image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_PREINITIALIZED, VK_IMAGE_LAYOUT_GENERAL);
for (uint32_t i = 0; i < 6; ++i){
void *data = NULL;
VkSubresourceLayout layout;
VkImageSubresource subres;
subres.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subres.mipLevel = m_mip_level;
subres.arrayLayer = i;
vkGetImageSubresourceLayout(getDefaultDevice(), m_data.image, &subres, &layout);
VKA_CHECK_ERROR(vkMapMemory(getDefaultDevice(), cubeMapMem, layout.offset, layout.size, 0, &data), "Could not map memory for image.\n");
const nv_dds::CTexture &mipmap = ddsImage.get_cubemap_face(i);
memcpy(data, (void *)mipmap, layout.size);
vkUnmapMemory(getDefaultDevice(), cubeMapMem);
}
VkBufferImageCopy biCpyRgn[6];
for (uint32_t k = 0; k < 6; ++k){
VkSubresourceLayout layout;
VkImageSubresource subres;
subres.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subres.mipLevel = m_mip_level;
subres.arrayLayer = k;
vkGetImageSubresourceLayout(getDefaultDevice(), m_data.image, &subres, &layout);
biCpyRgn[k].bufferOffset = layout.offset;
biCpyRgn[k].bufferImageHeight = 0;
biCpyRgn[k].bufferRowLength = 0;
biCpyRgn[k].imageExtent.width = m_width;
biCpyRgn[k].imageExtent.height = m_height;
biCpyRgn[k].imageExtent.depth = 1;
biCpyRgn[k].imageOffset.x = 0;
biCpyRgn[k].imageOffset.y = 0;
biCpyRgn[k].imageOffset.z = 0;
biCpyRgn[k].imageSubresource.baseArrayLayer = k;
biCpyRgn[k].imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
biCpyRgn[k].imageSubresource.layerCount = 1;
biCpyRgn[k].imageSubresource.mipLevel = 0;
}
VkFence copyFence;
VkFenceCreateInfo fenceInfo;
memset(&fenceInfo, 0, sizeof(fenceInfo));
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
vkCreateFence(device->getVKDevice(), &fenceInfo, NULL, ©Fence);
vkCmdCopyBufferToImage(cmd, cubeMapBuffer, m_data.image, m_data.imageLayout, 6, biCpyRgn);
queue->flushCommandBuffer(cmdID, ©Fence);
vkWaitForFences(device->getVKDevice(), 1, ©Fence, VK_TRUE, 100000000000);
vkDestroyBuffer(device->getVKDevice(), cubeMapBuffer, NULL);
vkFreeMemory(device->getVKDevice(), cubeMapMem, NULL);
}
VkSamplerCreateInfo sampler;
sampler.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
sampler.pNext = NULL;
sampler.magFilter = VK_FILTER_NEAREST;
sampler.minFilter = VK_FILTER_NEAREST;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 1;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VkImageViewCreateInfo view;
view.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view.pNext = NULL;
view.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
view.format = m_format;
view.components.r = VK_COMPONENT_SWIZZLE_R;
view.components.g = VK_COMPONENT_SWIZZLE_G;
view.components.b = VK_COMPONENT_SWIZZLE_B;
view.components.a = VK_COMPONENT_SWIZZLE_A;
view.subresourceRange.baseArrayLayer = 0;
view.subresourceRange.levelCount = 1;
view.subresourceRange.baseMipLevel = 0;
view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view.subresourceRange.layerCount = 1;
VKA_CHECK_ERROR(vkCreateSampler(getDefaultDevice(), &sampler, NULL, &m_data.sampler), "Could not create sampler for image texture.\n");
view.image = m_data.image;
VKA_CHECK_ERROR(vkCreateImageView(getDefaultDevice(), &view, NULL, &m_data.view), "Could not create image view for texture.\n");
}
void BaseImage::ValidateContent(RandomNumberGenerator& rand)
{
/*
dstBuf has following layout:
For each of texels to be sampled, [0..valueCount):
struct {
in uint32_t pixelX;
in uint32_t pixelY;
out uint32_t pixelColor;
}
*/
const uint32_t valueCount = 128;
VkBufferCreateInfo dstBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
dstBufCreateInfo.usage = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
dstBufCreateInfo.size = valueCount * sizeof(uint32_t) * 3;
VmaAllocationCreateInfo dstBufAllocCreateInfo = {};
dstBufAllocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT;
dstBufAllocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_TO_CPU;
VkBuffer dstBuf = nullptr;
VmaAllocation dstBufAlloc = nullptr;
VmaAllocationInfo dstBufAllocInfo = {};
TEST( vmaCreateBuffer(g_hAllocator, &dstBufCreateInfo, &dstBufAllocCreateInfo, &dstBuf, &dstBufAlloc, &dstBufAllocInfo) == VK_SUCCESS );
// Fill dstBuf input data.
{
uint32_t* dstBufContent = (uint32_t*)dstBufAllocInfo.pMappedData;
for(uint32_t i = 0; i < valueCount; ++i)
{
const uint32_t x = rand.Generate() % m_CreateInfo.extent.width;
const uint32_t y = rand.Generate() % m_CreateInfo.extent.height;
dstBufContent[i * 3 ] = x;
dstBufContent[i * 3 + 1] = y;
dstBufContent[i * 3 + 2] = 0;
}
}
VkSamplerCreateInfo samplerCreateInfo = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO };
samplerCreateInfo.magFilter = VK_FILTER_NEAREST;
samplerCreateInfo.minFilter = VK_FILTER_NEAREST;
samplerCreateInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
samplerCreateInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.unnormalizedCoordinates = VK_TRUE;
VkSampler sampler = nullptr;
TEST( vkCreateSampler( g_hDevice, &samplerCreateInfo, nullptr, &sampler) == VK_SUCCESS );
VkDescriptorSetLayoutBinding bindings[2] = {};
bindings[0].binding = 0;
bindings[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
bindings[0].descriptorCount = 1;
bindings[0].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
bindings[0].pImmutableSamplers = &sampler;
bindings[1].binding = 1;
bindings[1].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
bindings[1].descriptorCount = 1;
bindings[1].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
VkDescriptorSetLayoutCreateInfo descSetLayoutCreateInfo = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO };
descSetLayoutCreateInfo.bindingCount = 2;
descSetLayoutCreateInfo.pBindings = bindings;
VkDescriptorSetLayout descSetLayout = nullptr;
TEST( vkCreateDescriptorSetLayout(g_hDevice, &descSetLayoutCreateInfo, nullptr, &descSetLayout) == VK_SUCCESS );
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo = { VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO };
pipelineLayoutCreateInfo.setLayoutCount = 1;
pipelineLayoutCreateInfo.pSetLayouts = &descSetLayout;
VkPipelineLayout pipelineLayout = nullptr;
TEST( vkCreatePipelineLayout(g_hDevice, &pipelineLayoutCreateInfo, nullptr, &pipelineLayout) == VK_SUCCESS );
std::vector<char> shaderCode;
LoadShader(shaderCode, "SparseBindingTest.comp.spv");
VkShaderModuleCreateInfo shaderModuleCreateInfo = { VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO };
shaderModuleCreateInfo.codeSize = shaderCode.size();
shaderModuleCreateInfo.pCode = (const uint32_t*)shaderCode.data();
VkShaderModule shaderModule = nullptr;
TEST( vkCreateShaderModule(g_hDevice, &shaderModuleCreateInfo, nullptr, &shaderModule) == VK_SUCCESS );
VkComputePipelineCreateInfo pipelineCreateInfo = { VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO };
pipelineCreateInfo.stage.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
pipelineCreateInfo.stage.stage = VK_SHADER_STAGE_COMPUTE_BIT;
pipelineCreateInfo.stage.module = shaderModule;
pipelineCreateInfo.stage.pName = "main";
pipelineCreateInfo.layout = pipelineLayout;
VkPipeline pipeline = nullptr;
TEST( vkCreateComputePipelines(g_hDevice, nullptr, 1, &pipelineCreateInfo, nullptr, &pipeline) == VK_SUCCESS );
VkDescriptorPoolSize poolSizes[2] = {};
poolSizes[0].type = bindings[0].descriptorType;
poolSizes[0].descriptorCount = bindings[0].descriptorCount;
poolSizes[1].type = bindings[1].descriptorType;
poolSizes[1].descriptorCount = bindings[1].descriptorCount;
VkDescriptorPoolCreateInfo descPoolCreateInfo = { VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO };
descPoolCreateInfo.maxSets = 1;
descPoolCreateInfo.poolSizeCount = 2;
descPoolCreateInfo.pPoolSizes = poolSizes;
VkDescriptorPool descPool = nullptr;
TEST( vkCreateDescriptorPool(g_hDevice, &descPoolCreateInfo, nullptr, &descPool) == VK_SUCCESS );
VkDescriptorSetAllocateInfo descSetAllocInfo = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO };
descSetAllocInfo.descriptorPool = descPool;
descSetAllocInfo.descriptorSetCount = 1;
descSetAllocInfo.pSetLayouts = &descSetLayout;
VkDescriptorSet descSet = nullptr;
TEST( vkAllocateDescriptorSets(g_hDevice, &descSetAllocInfo, &descSet) == VK_SUCCESS );
VkImageViewCreateInfo imageViewCreateInfo = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO };
imageViewCreateInfo.image = m_Image;
imageViewCreateInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageViewCreateInfo.format = m_CreateInfo.format;
imageViewCreateInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageViewCreateInfo.subresourceRange.layerCount = 1;
imageViewCreateInfo.subresourceRange.levelCount = 1;
VkImageView imageView = nullptr;
TEST( vkCreateImageView(g_hDevice, &imageViewCreateInfo, nullptr, &imageView) == VK_SUCCESS );
VkDescriptorImageInfo descImageInfo = {};
descImageInfo.imageView = imageView;
descImageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
VkDescriptorBufferInfo descBufferInfo = {};
descBufferInfo.buffer = dstBuf;
descBufferInfo.offset = 0;
descBufferInfo.range = VK_WHOLE_SIZE;
VkWriteDescriptorSet descWrites[2] = {};
descWrites[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descWrites[0].dstSet = descSet;
descWrites[0].dstBinding = bindings[0].binding;
descWrites[0].dstArrayElement = 0;
descWrites[0].descriptorCount = 1;
descWrites[0].descriptorType = bindings[0].descriptorType;
descWrites[0].pImageInfo = &descImageInfo;
descWrites[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descWrites[1].dstSet = descSet;
descWrites[1].dstBinding = bindings[1].binding;
descWrites[1].dstArrayElement = 0;
descWrites[1].descriptorCount = 1;
descWrites[1].descriptorType = bindings[1].descriptorType;
descWrites[1].pBufferInfo = &descBufferInfo;
vkUpdateDescriptorSets(g_hDevice, 2, descWrites, 0, nullptr);
BeginSingleTimeCommands();
vkCmdBindPipeline(g_hTemporaryCommandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline);
vkCmdBindDescriptorSets(g_hTemporaryCommandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipelineLayout, 0, 1, &descSet, 0, nullptr);
vkCmdDispatch(g_hTemporaryCommandBuffer, valueCount, 1, 1);
EndSingleTimeCommands();
// Validate dstBuf output data.
{
const uint32_t* dstBufContent = (const uint32_t*)dstBufAllocInfo.pMappedData;
for(uint32_t i = 0; i < valueCount; ++i)
{
const uint32_t x = dstBufContent[i * 3 ];
const uint32_t y = dstBufContent[i * 3 + 1];
const uint32_t color = dstBufContent[i * 3 + 2];
const uint8_t a = (uint8_t)(color >> 24);
const uint8_t b = (uint8_t)(color >> 16);
const uint8_t g = (uint8_t)(color >> 8);
const uint8_t r = (uint8_t)color;
TEST(r == (uint8_t)x && g == (uint8_t)y && b == 13 && a == 25);
}
}
vkDestroyImageView(g_hDevice, imageView, nullptr);
vkDestroyDescriptorPool(g_hDevice, descPool, nullptr);
vmaDestroyBuffer(g_hAllocator, dstBuf, dstBufAlloc);
vkDestroyPipeline(g_hDevice, pipeline, nullptr);
vkDestroyShaderModule(g_hDevice, shaderModule, nullptr);
vkDestroyPipelineLayout(g_hDevice, pipelineLayout, nullptr);
vkDestroyDescriptorSetLayout(g_hDevice, descSetLayout, nullptr);
vkDestroySampler(g_hDevice, sampler, nullptr);
}
void loadAssets()
{
models.skysphere.loadFromFile(getAssetPath() + "models/geosphere.obj", vertexLayout, 1.0f, vulkanDevice, queue);
// Textures
std::string texFormatSuffix;
VkFormat texFormat;
// Get supported compressed texture format
if (vulkanDevice->features.textureCompressionBC) {
texFormatSuffix = "_bc3_unorm";
texFormat = VK_FORMAT_BC3_UNORM_BLOCK;
}
else if (vulkanDevice->features.textureCompressionASTC_LDR) {
texFormatSuffix = "_astc_8x8_unorm";
texFormat = VK_FORMAT_ASTC_8x8_UNORM_BLOCK;
}
else if (vulkanDevice->features.textureCompressionETC2) {
texFormatSuffix = "_etc2_unorm";
texFormat = VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK;
}
else {
vks::tools::exitFatal("Device does not support any compressed texture format!", VK_ERROR_FEATURE_NOT_PRESENT);
}
textures.skySphere.loadFromFile(getAssetPath() + "textures/skysphere" + texFormatSuffix + ".ktx", texFormat, vulkanDevice, queue);
// Terrain textures are stored in a texture array with layers corresponding to terrain height
textures.terrainArray.loadFromFile(getAssetPath() + "textures/terrain_texturearray" + texFormatSuffix + ".ktx", texFormat, vulkanDevice, queue);
// Height data is stored in a one-channel texture
textures.heightMap.loadFromFile(getAssetPath() + "textures/terrain_heightmap_r16.ktx", VK_FORMAT_R16_UNORM, vulkanDevice, queue);
VkSamplerCreateInfo samplerInfo = vks::initializers::samplerCreateInfo();
// Setup a mirroring sampler for the height map
vkDestroySampler(device, textures.heightMap.sampler, nullptr);
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
samplerInfo.addressModeV = samplerInfo.addressModeU;
samplerInfo.addressModeW = samplerInfo.addressModeU;
samplerInfo.compareOp = VK_COMPARE_OP_NEVER;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = (float)textures.heightMap.mipLevels;
samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &samplerInfo, nullptr, &textures.heightMap.sampler));
textures.heightMap.descriptor.sampler = textures.heightMap.sampler;
// Setup a repeating sampler for the terrain texture layers
vkDestroySampler(device, textures.terrainArray.sampler, nullptr);
samplerInfo = vks::initializers::samplerCreateInfo();
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.addressModeV = samplerInfo.addressModeU;
samplerInfo.addressModeW = samplerInfo.addressModeU;
samplerInfo.compareOp = VK_COMPARE_OP_NEVER;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = (float)textures.terrainArray.mipLevels;
samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
if (deviceFeatures.samplerAnisotropy)
{
samplerInfo.maxAnisotropy = 4.0f;
samplerInfo.anisotropyEnable = VK_TRUE;
}
VK_CHECK_RESULT(vkCreateSampler(device, &samplerInfo, nullptr, &textures.terrainArray.sampler));
textures.terrainArray.descriptor.sampler = textures.terrainArray.sampler;
}
void loadTextureArray(std::string filename, VkFormat format)
{
#if defined(__ANDROID__)
// Textures are stored inside the apk on Android (compressed)
// So they need to be loaded via the asset manager
AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
void *textureData = malloc(size);
AAsset_read(asset, textureData, size);
AAsset_close(asset);
gli::texture2DArray tex2DArray(gli::load((const char*)textureData, size));
#else
gli::texture2DArray tex2DArray(gli::load(filename));
#endif
assert(!tex2DArray.empty());
textureArray.width = tex2DArray.dimensions().x;
textureArray.height = tex2DArray.dimensions().y;
layerCount = tex2DArray.layers();
// Get device properites for the requested texture format
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.extent = { textureArray.width, textureArray.height, 1 };
imageCreateInfo.mipLevels = 1;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_LINEAR;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
imageCreateInfo.flags = 0;
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
struct Layer {
VkImage image;
VkDeviceMemory memory;
};
std::vector<Layer> arrayLayer;
arrayLayer.resize(layerCount);
// Allocate command buffer for image copies and layouts
VkCommandBuffer cmdBuffer;
VkCommandBufferAllocateInfo cmdBufAlllocatInfo =
vkTools::initializers::commandBufferAllocateInfo(
cmdPool,
VK_COMMAND_BUFFER_LEVEL_PRIMARY,
1);
VkResult err = vkAllocateCommandBuffers(device, &cmdBufAlllocatInfo, &cmdBuffer);
assert(!err);
VkCommandBufferBeginInfo cmdBufInfo =
vkTools::initializers::commandBufferBeginInfo();
err = vkBeginCommandBuffer(cmdBuffer, &cmdBufInfo);
assert(!err);
// Load separate cube map faces into linear tiled textures
for (uint32_t i = 0; i < layerCount; ++i)
{
err = vkCreateImage(device, &imageCreateInfo, nullptr, &arrayLayer[i].image);
assert(!err);
vkGetImageMemoryRequirements(device, arrayLayer[i].image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &arrayLayer[i].memory);
assert(!err);
err = vkBindImageMemory(device, arrayLayer[i].image, arrayLayer[i].memory, 0);
assert(!err);
VkImageSubresource subRes = {};
subRes.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
VkSubresourceLayout subResLayout;
void *data;
vkGetImageSubresourceLayout(device, arrayLayer[i].image, &subRes, &subResLayout);
assert(!err);
err = vkMapMemory(device, arrayLayer[i].memory, 0, memReqs.size, 0, &data);
assert(!err);
memcpy(data, tex2DArray[i].data(), tex2DArray[i].size());
vkUnmapMemory(device, arrayLayer[i].memory);
// Image barrier for linear image (base)
// Linear image will be used as a source for the copy
vkTools::setImageLayout(
cmdBuffer,
arrayLayer[i].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
}
// Transfer cube map faces to optimal tiling
// Setup texture as blit target with optimal tiling
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.arrayLayers = layerCount;
err = vkCreateImage(device, &imageCreateInfo, nullptr, &textureArray.image);
assert(!err);
vkGetImageMemoryRequirements(device, textureArray.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &textureArray.deviceMemory);
assert(!err);
err = vkBindImageMemory(device, textureArray.image, textureArray.deviceMemory, 0);
assert(!err);
// Image barrier for optimal image (target)
// Set initial layout for all array layers of the optimal (target) tiled texture
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = layerCount;
vkTools::setImageLayout(
cmdBuffer,
textureArray.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
subresourceRange);
// Copy cube map faces one by one
for (uint32_t i = 0; i < layerCount; ++i)
{
// Copy region for image blit
VkImageCopy copyRegion = {};
copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.srcSubresource.baseArrayLayer = 0;
copyRegion.srcSubresource.mipLevel = 0;
copyRegion.srcSubresource.layerCount = 1;
copyRegion.srcOffset = { 0, 0, 0 };
copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.dstSubresource.baseArrayLayer = i;
copyRegion.dstSubresource.mipLevel = 0;
copyRegion.dstSubresource.layerCount = 1;
copyRegion.dstOffset = { 0, 0, 0 };
copyRegion.extent.width = textureArray.width;
copyRegion.extent.height = textureArray.height;
copyRegion.extent.depth = 1;
// Put image copy into command buffer
vkCmdCopyImage(
cmdBuffer,
arrayLayer[i].image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
textureArray.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1, ©Region);
}
// Change texture image layout to shader read after all layers have been copied
textureArray.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
cmdBuffer,
textureArray.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
textureArray.imageLayout,
subresourceRange);
err = vkEndCommandBuffer(cmdBuffer);
assert(!err);
VkFence nullFence = { VK_NULL_HANDLE };
// Submit command buffer to graphis queue
VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmdBuffer;
err = vkQueueSubmit(queue, 1, &submitInfo, nullFence);
assert(!err);
err = vkQueueWaitIdle(queue);
assert(!err);
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 8;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
err = vkCreateSampler(device, &sampler, nullptr, &textureArray.sampler);
assert(!err);
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = VK_NULL_HANDLE;
view.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
view.subresourceRange.layerCount = layerCount;
view.image = textureArray.image;
err = vkCreateImageView(device, &view, nullptr, &textureArray.view);
assert(!err);
// Cleanup
for (auto& layer : arrayLayer)
{
vkDestroyImage(device, layer.image, nullptr);
vkFreeMemory(device, layer.memory, nullptr);
}
}
void loadCubemap(std::string filename, VkFormat format, bool forceLinearTiling)
{
#if defined(__ANDROID__)
// Textures are stored inside the apk on Android (compressed)
// So they need to be loaded via the asset manager
AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
void *textureData = malloc(size);
AAsset_read(asset, textureData, size);
AAsset_close(asset);
gli::texture_cube texCube(gli::load((const char*)textureData, size));
#else
gli::texture_cube texCube(gli::load(filename));
#endif
assert(!texCube.empty());
cubeMap.width = texCube.extent().x;
cubeMap.height = texCube.extent().y;
cubeMap.mipLevels = texCube.levels();
VkMemoryAllocateInfo memAllocInfo = vks::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
// Create a host-visible staging buffer that contains the raw image data
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkBufferCreateInfo bufferCreateInfo = vks::initializers::bufferCreateInfo();
bufferCreateInfo.size = texCube.size();
// This buffer is used as a transfer source for the buffer copy
bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
VK_CHECK_RESULT(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &stagingBuffer));
// Get memory requirements for the staging buffer (alignment, memory type bits)
vkGetBufferMemoryRequirements(device, stagingBuffer, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
// Get memory type index for a host visible buffer
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &stagingMemory));
VK_CHECK_RESULT(vkBindBufferMemory(device, stagingBuffer, stagingMemory, 0));
// Copy texture data into staging buffer
uint8_t *data;
VK_CHECK_RESULT(vkMapMemory(device, stagingMemory, 0, memReqs.size, 0, (void **)&data));
memcpy(data, texCube.data(), texCube.size());
vkUnmapMemory(device, stagingMemory);
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = cubeMap.mipLevels;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageCreateInfo.extent = { cubeMap.width, cubeMap.height, 1 };
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
// Cube faces count as array layers in Vulkan
imageCreateInfo.arrayLayers = 6;
// This flag is required for cube map images
imageCreateInfo.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &cubeMap.image));
vkGetImageMemoryRequirements(device, cubeMap.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &cubeMap.deviceMemory));
VK_CHECK_RESULT(vkBindImageMemory(device, cubeMap.image, cubeMap.deviceMemory, 0));
VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
// Setup buffer copy regions for each face including all of it's miplevels
std::vector<VkBufferImageCopy> bufferCopyRegions;
uint32_t offset = 0;
for (uint32_t face = 0; face < 6; face++)
{
for (uint32_t level = 0; level < cubeMap.mipLevels; level++)
{
VkBufferImageCopy bufferCopyRegion = {};
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
bufferCopyRegion.imageSubresource.mipLevel = level;
bufferCopyRegion.imageSubresource.baseArrayLayer = face;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = texCube[face][level].extent().x;
bufferCopyRegion.imageExtent.height = texCube[face][level].extent().y;
bufferCopyRegion.imageExtent.depth = 1;
bufferCopyRegion.bufferOffset = offset;
bufferCopyRegions.push_back(bufferCopyRegion);
// Increase offset into staging buffer for next level / face
offset += texCube[face][level].size();
}
}
// Image barrier for optimal image (target)
// Set initial layout for all array layers (faces) of the optimal (target) tiled texture
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = cubeMap.mipLevels;
subresourceRange.layerCount = 6;
vks::tools::setImageLayout(
copyCmd,
cubeMap.image,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
subresourceRange);
// Copy the cube map faces from the staging buffer to the optimal tiled image
vkCmdCopyBufferToImage(
copyCmd,
stagingBuffer,
cubeMap.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
static_cast<uint32_t>(bufferCopyRegions.size()),
bufferCopyRegions.data()
);
// Change texture image layout to shader read after all faces have been copied
cubeMap.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vks::tools::setImageLayout(
copyCmd,
cubeMap.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
cubeMap.imageLayout,
subresourceRange);
VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
// Create sampler
VkSamplerCreateInfo sampler = vks::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = cubeMap.mipLevels;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
sampler.maxAnisotropy = 1.0f;
if (vulkanDevice->features.samplerAnisotropy)
{
sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
sampler.anisotropyEnable = VK_TRUE;
}
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &cubeMap.sampler));
// Create image view
VkImageViewCreateInfo view = vks::initializers::imageViewCreateInfo();
// Cube map view type
view.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
// 6 array layers (faces)
view.subresourceRange.layerCount = 6;
// Set number of mip levels
view.subresourceRange.levelCount = cubeMap.mipLevels;
view.image = cubeMap.image;
VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &cubeMap.view));
// Clean up staging resources
vkFreeMemory(device, stagingMemory, nullptr);
vkDestroyBuffer(device, stagingBuffer, nullptr);
}
void loadTexture(const char* filename, VkFormat format, bool forceLinearTiling)
{
VkFormatProperties formatProperties;
VkResult err;
gli::textureCube texCube(gli::load(filename));
assert(!texCube.empty());
cubeMap.width = texCube[0].dimensions().x;
cubeMap.height = texCube[0].dimensions().y;
// Get device properites for the requested texture format
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.extent = { cubeMap.width, cubeMap.height, 1 };
imageCreateInfo.mipLevels = 1;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_LINEAR;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
imageCreateInfo.flags = 0;
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
struct {
VkImage image;
VkDeviceMemory memory;
} cubeFace[6];
// Allocate command buffer for image copies and layouts
VkCommandBuffer cmdBuffer;
VkCommandBufferAllocateInfo cmdBufAlllocatInfo =
vkTools::initializers::commandBufferAllocateInfo(
cmdPool,
VK_COMMAND_BUFFER_LEVEL_PRIMARY,
1);
err = vkAllocateCommandBuffers(device, &cmdBufAlllocatInfo, &cmdBuffer);
assert(!err);
VkCommandBufferBeginInfo cmdBufInfo =
vkTools::initializers::commandBufferBeginInfo();
err = vkBeginCommandBuffer(cmdBuffer, &cmdBufInfo);
assert(!err);
// Load separate cube map faces into linear tiled textures
for (uint32_t face = 0; face < 6; ++face)
{
err = vkCreateImage(device, &imageCreateInfo, nullptr, &cubeFace[face].image);
assert(!err);
vkGetImageMemoryRequirements(device, cubeFace[face].image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &cubeFace[face].memory);
assert(!err);
err = vkBindImageMemory(device, cubeFace[face].image, cubeFace[face].memory, 0);
assert(!err);
VkImageSubresource subRes = {};
subRes.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
VkSubresourceLayout subResLayout;
void *data;
vkGetImageSubresourceLayout(device, cubeFace[face].image, &subRes, &subResLayout);
assert(!err);
err = vkMapMemory(device, cubeFace[face].memory, 0, memReqs.size, 0, &data);
assert(!err);
memcpy(data, texCube[face][subRes.mipLevel].data(), texCube[face][subRes.mipLevel].size());
vkUnmapMemory(device, cubeFace[face].memory);
// Image barrier for linear image (base)
// Linear image will be used as a source for the copy
vkTools::setImageLayout(
cmdBuffer,
cubeFace[face].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
}
// Transfer cube map faces to optimal tiling
// Setup texture as blit target with optimal tiling
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
imageCreateInfo.arrayLayers = 6;
err = vkCreateImage(device, &imageCreateInfo, nullptr, &cubeMap.image);
assert(!err);
vkGetImageMemoryRequirements(device, cubeMap.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &cubeMap.deviceMemory);
assert(!err);
err = vkBindImageMemory(device, cubeMap.image, cubeMap.deviceMemory, 0);
assert(!err);
// Image barrier for optimal image (target)
// Optimal image will be used as destination for the copy
// Set initial layout for all array layers of the optimal (target) tiled texture
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = 6;
vkTools::setImageLayout(
cmdBuffer,
cubeMap.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
subresourceRange);
// Copy cube map faces one by one
for (uint32_t face = 0; face < 6; ++face)
{
// Copy region for image blit
VkImageCopy copyRegion = {};
copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.srcSubresource.baseArrayLayer = 0;
copyRegion.srcSubresource.mipLevel = 0;
copyRegion.srcSubresource.layerCount = 1;
copyRegion.srcOffset = { 0, 0, 0 };
copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.dstSubresource.baseArrayLayer = face;
copyRegion.dstSubresource.mipLevel = 0;
copyRegion.dstSubresource.layerCount = 1;
copyRegion.dstOffset = { 0, 0, 0 };
copyRegion.extent.width = cubeMap.width;
copyRegion.extent.height = cubeMap.height;
copyRegion.extent.depth = 1;
// Put image copy into command buffer
vkCmdCopyImage(
cmdBuffer,
cubeFace[face].image,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
cubeMap.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1, ©Region);
}
// Change texture image layout to shader read after all faces have been copied
cubeMap.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
cmdBuffer,
cubeMap.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
cubeMap.imageLayout,
subresourceRange);
err = vkEndCommandBuffer(cmdBuffer);
assert(!err);
VkFence nullFence = { VK_NULL_HANDLE };
// Submit command buffer to graphis queue
VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmdBuffer;
err = vkQueueSubmit(queue, 1, &submitInfo, nullFence);
assert(!err);
err = vkQueueWaitIdle(queue);
assert(!err);
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 8;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
err = vkCreateSampler(device, &sampler, nullptr, &cubeMap.sampler);
assert(!err);
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = VK_NULL_HANDLE;
view.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
view.subresourceRange.layerCount = 6;
view.image = cubeMap.image;
err = vkCreateImageView(device, &view, nullptr, &cubeMap.view);
assert(!err);
// Cleanup
for (auto& face : cubeFace)
{
vkDestroyImage(device, face.image, nullptr);
vkFreeMemory(device, face.memory, nullptr);
}
}
void loadTextureArray(std::string filename, VkFormat format)
{
#if defined(__ANDROID__)
// Textures are stored inside the apk on Android (compressed)
// So they need to be loaded via the asset manager
AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
void *textureData = malloc(size);
AAsset_read(asset, textureData, size);
AAsset_close(asset);
gli::texture2DArray tex2DArray(gli::load((const char*)textureData, size));
#else
gli::texture2DArray tex2DArray(gli::load(filename));
#endif
assert(!tex2DArray.empty());
textureArray.width = tex2DArray.dimensions().x;
textureArray.height = tex2DArray.dimensions().y;
layerCount = tex2DArray.layers();
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
// Create a host-visible staging buffer that contains the raw image data
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkBufferCreateInfo bufferCreateInfo = vkTools::initializers::bufferCreateInfo();
bufferCreateInfo.size = tex2DArray.size();
// This buffer is used as a transfer source for the buffer copy
bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
vkTools::checkResult(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &stagingBuffer));
// Get memory requirements for the staging buffer (alignment, memory type bits)
vkGetBufferMemoryRequirements(device, stagingBuffer, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
// Get memory type index for a host visible buffer
memAllocInfo.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
vkTools::checkResult(vkAllocateMemory(device, &memAllocInfo, nullptr, &stagingMemory));
vkTools::checkResult(vkBindBufferMemory(device, stagingBuffer, stagingMemory, 0));
// Copy texture data into staging buffer
uint8_t *data;
vkTools::checkResult(vkMapMemory(device, stagingMemory, 0, memReqs.size, 0, (void **)&data));
memcpy(data, tex2DArray.data(), tex2DArray.size());
vkUnmapMemory(device, stagingMemory);
// Setup buffer copy regions for array layers
std::vector<VkBufferImageCopy> bufferCopyRegions;
uint32_t offset = 0;
// Check if all array layers have the same dimesions
bool sameDims = true;
for (uint32_t layer = 0; layer < layerCount; layer++)
{
if (tex2DArray[layer].dimensions().x != textureArray.width || tex2DArray[layer].dimensions().y != textureArray.height)
{
sameDims = false;
break;
}
}
// If all layers of the texture array have the same dimensions, we only need to do one copy
if (sameDims)
{
VkBufferImageCopy bufferCopyRegion = {};
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
bufferCopyRegion.imageSubresource.mipLevel = 0;
bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
bufferCopyRegion.imageSubresource.layerCount = layerCount;
bufferCopyRegion.imageExtent.width = tex2DArray[0].dimensions().x;
bufferCopyRegion.imageExtent.height = tex2DArray[0].dimensions().y;
bufferCopyRegion.imageExtent.depth = 1;
bufferCopyRegion.bufferOffset = offset;
bufferCopyRegions.push_back(bufferCopyRegion);
}
else
{
// If dimensions differ, copy layer by layer and pass offsets
for (uint32_t layer = 0; layer < layerCount; layer++)
{
VkBufferImageCopy bufferCopyRegion = {};
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
bufferCopyRegion.imageSubresource.mipLevel = 0;
bufferCopyRegion.imageSubresource.baseArrayLayer = layer;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = tex2DArray[layer].dimensions().x;
bufferCopyRegion.imageExtent.height = tex2DArray[layer].dimensions().y;
bufferCopyRegion.imageExtent.depth = 1;
bufferCopyRegion.bufferOffset = offset;
bufferCopyRegions.push_back(bufferCopyRegion);
offset += tex2DArray[layer].size();
}
}
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
imageCreateInfo.extent = { textureArray.width, textureArray.height, 1 };
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.arrayLayers = layerCount;
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &textureArray.image));
vkGetImageMemoryRequirements(device, textureArray.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &textureArray.deviceMemory));
VK_CHECK_RESULT(vkBindImageMemory(device, textureArray.image, textureArray.deviceMemory, 0));
VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
// Image barrier for optimal image (target)
// Set initial layout for all array layers (faces) of the optimal (target) tiled texture
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = layerCount;
vkTools::setImageLayout(
copyCmd,
textureArray.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
subresourceRange);
// Copy the cube map faces from the staging buffer to the optimal tiled image
vkCmdCopyBufferToImage(
copyCmd,
stagingBuffer,
textureArray.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
bufferCopyRegions.size(),
bufferCopyRegions.data()
);
// Change texture image layout to shader read after all faces have been copied
textureArray.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
copyCmd,
textureArray.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
textureArray.imageLayout,
subresourceRange);
VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 8;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &textureArray.sampler));
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
view.subresourceRange.layerCount = layerCount;
view.image = textureArray.image;
VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &textureArray.view));
// Clean up staging resources
vkFreeMemory(device, stagingMemory, nullptr);
vkDestroyBuffer(device, stagingBuffer, nullptr);
}
/**
* Prepare all vulkan resources required to render the font
* The text overlay uses separate resources for descriptors (pool, sets, layouts), pipelines and command buffers
*/
void prepareResources()
{
static unsigned char font24pixels[STB_FONT_HEIGHT][STB_FONT_WIDTH];
STB_FONT_NAME(stbFontData, font24pixels, STB_FONT_HEIGHT);
// Command buffer
// Pool
VkCommandPoolCreateInfo cmdPoolInfo = {};
cmdPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
cmdPoolInfo.queueFamilyIndex = vulkanDevice->queueFamilyIndices.graphics;
cmdPoolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
VK_CHECK_RESULT(vkCreateCommandPool(vulkanDevice->logicalDevice, &cmdPoolInfo, nullptr, &commandPool));
VkCommandBufferAllocateInfo cmdBufAllocateInfo =
vks::initializers::commandBufferAllocateInfo(
commandPool,
VK_COMMAND_BUFFER_LEVEL_PRIMARY,
(uint32_t)cmdBuffers.size());
VK_CHECK_RESULT(vkAllocateCommandBuffers(vulkanDevice->logicalDevice, &cmdBufAllocateInfo, cmdBuffers.data()));
// Vertex buffer
VK_CHECK_RESULT(vulkanDevice->createBuffer(
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
&vertexBuffer,
MAX_CHAR_COUNT * sizeof(glm::vec4)));
// Map persistent
vertexBuffer.map();
// Font texture
VkImageCreateInfo imageInfo = vks::initializers::imageCreateInfo();
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.format = VK_FORMAT_R8_UNORM;
imageInfo.extent.width = STB_FONT_WIDTH;
imageInfo.extent.height = STB_FONT_HEIGHT;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
VK_CHECK_RESULT(vkCreateImage(vulkanDevice->logicalDevice, &imageInfo, nullptr, &image));
VkMemoryRequirements memReqs;
VkMemoryAllocateInfo allocInfo = vks::initializers::memoryAllocateInfo();
vkGetImageMemoryRequirements(vulkanDevice->logicalDevice, image, &memReqs);
allocInfo.allocationSize = memReqs.size;
allocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(vulkanDevice->logicalDevice, &allocInfo, nullptr, &imageMemory));
VK_CHECK_RESULT(vkBindImageMemory(vulkanDevice->logicalDevice, image, imageMemory, 0));
// Staging
vks::Buffer stagingBuffer;
VK_CHECK_RESULT(vulkanDevice->createBuffer(
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
&stagingBuffer,
allocInfo.allocationSize));
stagingBuffer.map();
memcpy(stagingBuffer.mapped, &font24pixels[0][0], STB_FONT_WIDTH * STB_FONT_HEIGHT); // Only one channel, so data size = W * H (*R8)
stagingBuffer.unmap();
// Copy to image
VkCommandBuffer copyCmd;
cmdBufAllocateInfo.commandBufferCount = 1;
VK_CHECK_RESULT(vkAllocateCommandBuffers(vulkanDevice->logicalDevice, &cmdBufAllocateInfo, ©Cmd));
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
VK_CHECK_RESULT(vkBeginCommandBuffer(copyCmd, &cmdBufInfo));
// Prepare for transfer
vks::tools::setImageLayout(
copyCmd,
image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkBufferImageCopy bufferCopyRegion = {};
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
bufferCopyRegion.imageSubresource.mipLevel = 0;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = STB_FONT_WIDTH;
bufferCopyRegion.imageExtent.height = STB_FONT_HEIGHT;
bufferCopyRegion.imageExtent.depth = 1;
vkCmdCopyBufferToImage(
copyCmd,
stagingBuffer.buffer,
image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&bufferCopyRegion
);
// Prepare for shader read
vks::tools::setImageLayout(
copyCmd,
image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
VK_CHECK_RESULT(vkEndCommandBuffer(copyCmd));
VkSubmitInfo submitInfo = vks::initializers::submitInfo();
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = ©Cmd;
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
VK_CHECK_RESULT(vkQueueWaitIdle(queue));
stagingBuffer.destroy();
vkFreeCommandBuffers(vulkanDevice->logicalDevice, commandPool, 1, ©Cmd);
VkImageViewCreateInfo imageViewInfo = vks::initializers::imageViewCreateInfo();
imageViewInfo.image = image;
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageViewInfo.format = imageInfo.format;
imageViewInfo.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
imageViewInfo.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
VK_CHECK_RESULT(vkCreateImageView(vulkanDevice->logicalDevice, &imageViewInfo, nullptr, &view));
// Sampler
VkSamplerCreateInfo samplerInfo = vks::initializers::samplerCreateInfo();
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
samplerInfo.mipLodBias = 0.0f;
samplerInfo.compareOp = VK_COMPARE_OP_NEVER;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = 1.0f;
samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
samplerInfo.maxAnisotropy = 1.0f;
VK_CHECK_RESULT(vkCreateSampler(vulkanDevice->logicalDevice, &samplerInfo, nullptr, &sampler));
// Descriptor
// Font uses a separate descriptor pool
std::array<VkDescriptorPoolSize, 1> poolSizes;
poolSizes[0] = vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1);
VkDescriptorPoolCreateInfo descriptorPoolInfo =
vks::initializers::descriptorPoolCreateInfo(
static_cast<uint32_t>(poolSizes.size()),
poolSizes.data(),
1);
VK_CHECK_RESULT(vkCreateDescriptorPool(vulkanDevice->logicalDevice, &descriptorPoolInfo, nullptr, &descriptorPool));
// Descriptor set layout
std::array<VkDescriptorSetLayoutBinding, 1> setLayoutBindings;
setLayoutBindings[0] = vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0);
VkDescriptorSetLayoutCreateInfo descriptorSetLayoutInfo =
vks::initializers::descriptorSetLayoutCreateInfo(
setLayoutBindings.data(),
static_cast<uint32_t>(setLayoutBindings.size()));
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(vulkanDevice->logicalDevice, &descriptorSetLayoutInfo, nullptr, &descriptorSetLayout));
// Pipeline layout
VkPipelineLayoutCreateInfo pipelineLayoutInfo =
vks::initializers::pipelineLayoutCreateInfo(
&descriptorSetLayout,
1);
VK_CHECK_RESULT(vkCreatePipelineLayout(vulkanDevice->logicalDevice, &pipelineLayoutInfo, nullptr, &pipelineLayout));
// Descriptor set
VkDescriptorSetAllocateInfo descriptorSetAllocInfo =
vks::initializers::descriptorSetAllocateInfo(
descriptorPool,
&descriptorSetLayout,
1);
VK_CHECK_RESULT(vkAllocateDescriptorSets(vulkanDevice->logicalDevice, &descriptorSetAllocInfo, &descriptorSet));
VkDescriptorImageInfo texDescriptor =
vks::initializers::descriptorImageInfo(
sampler,
view,
VK_IMAGE_LAYOUT_GENERAL);
std::array<VkWriteDescriptorSet, 1> writeDescriptorSets;
writeDescriptorSets[0] = vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &texDescriptor);
vkUpdateDescriptorSets(vulkanDevice->logicalDevice, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
// Pipeline cache
VkPipelineCacheCreateInfo pipelineCacheCreateInfo = {};
pipelineCacheCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
VK_CHECK_RESULT(vkCreatePipelineCache(vulkanDevice->logicalDevice, &pipelineCacheCreateInfo, nullptr, &pipelineCache));
// Command buffer execution fence
VkFenceCreateInfo fenceCreateInfo = vks::initializers::fenceCreateInfo();
VK_CHECK_RESULT(vkCreateFence(vulkanDevice->logicalDevice, &fenceCreateInfo, nullptr, &fence));
}
// Setup the offscreen framebuffer for rendering the blurred scene
// The color attachment of this framebuffer will then be used to sample frame in the fragment shader of the final pass
void prepareOffscreen()
{
offscreenPass.width = FB_DIM;
offscreenPass.height = FB_DIM;
// Find a suitable depth format
VkFormat fbDepthFormat;
VkBool32 validDepthFormat = vks::tools::getSupportedDepthFormat(physicalDevice, &fbDepthFormat);
assert(validDepthFormat);
// Color attachment
VkImageCreateInfo image = vks::initializers::imageCreateInfo();
image.imageType = VK_IMAGE_TYPE_2D;
image.format = FB_COLOR_FORMAT;
image.extent.width = offscreenPass.width;
image.extent.height = offscreenPass.height;
image.extent.depth = 1;
image.mipLevels = 1;
image.arrayLayers = 1;
image.samples = VK_SAMPLE_COUNT_1_BIT;
image.tiling = VK_IMAGE_TILING_OPTIMAL;
// We will sample directly from the color attachment
image.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.color.image));
vkGetImageMemoryRequirements(device, offscreenPass.color.image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &offscreenPass.color.mem));
VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.color.image, offscreenPass.color.mem, 0));
VkImageViewCreateInfo colorImageView = vks::initializers::imageViewCreateInfo();
colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
colorImageView.format = FB_COLOR_FORMAT;
colorImageView.subresourceRange = {};
colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
colorImageView.subresourceRange.baseMipLevel = 0;
colorImageView.subresourceRange.levelCount = 1;
colorImageView.subresourceRange.baseArrayLayer = 0;
colorImageView.subresourceRange.layerCount = 1;
colorImageView.image = offscreenPass.color.image;
VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offscreenPass.color.view));
// Create sampler to sample from the attachment in the fragment shader
VkSamplerCreateInfo samplerInfo = vks::initializers::samplerCreateInfo();
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerInfo.addressModeV = samplerInfo.addressModeU;
samplerInfo.addressModeW = samplerInfo.addressModeU;
samplerInfo.mipLodBias = 0.0f;
samplerInfo.maxAnisotropy = 1.0f;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = 1.0f;
samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &samplerInfo, nullptr, &offscreenPass.sampler));
// Depth stencil attachment
image.format = fbDepthFormat;
image.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.depth.image));
vkGetImageMemoryRequirements(device, offscreenPass.depth.image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &offscreenPass.depth.mem));
VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.depth.image, offscreenPass.depth.mem, 0));
VkImageViewCreateInfo depthStencilView = vks::initializers::imageViewCreateInfo();
depthStencilView.viewType = VK_IMAGE_VIEW_TYPE_2D;
depthStencilView.format = fbDepthFormat;
depthStencilView.flags = 0;
depthStencilView.subresourceRange = {};
depthStencilView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
depthStencilView.subresourceRange.baseMipLevel = 0;
depthStencilView.subresourceRange.levelCount = 1;
depthStencilView.subresourceRange.baseArrayLayer = 0;
depthStencilView.subresourceRange.layerCount = 1;
depthStencilView.image = offscreenPass.depth.image;
VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offscreenPass.depth.view));
// Create a separate render pass for the offscreen rendering as it may differ from the one used for scene rendering
std::array<VkAttachmentDescription, 2> attchmentDescriptions = {};
// Color attachment
attchmentDescriptions[0].format = FB_COLOR_FORMAT;
attchmentDescriptions[0].samples = VK_SAMPLE_COUNT_1_BIT;
attchmentDescriptions[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attchmentDescriptions[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attchmentDescriptions[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attchmentDescriptions[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attchmentDescriptions[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Depth attachment
attchmentDescriptions[1].format = fbDepthFormat;
attchmentDescriptions[1].samples = VK_SAMPLE_COUNT_1_BIT;
attchmentDescriptions[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attchmentDescriptions[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attchmentDescriptions[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attchmentDescriptions[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
VkAttachmentReference depthReference = { 1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL };
VkSubpassDescription subpassDescription = {};
subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpassDescription.colorAttachmentCount = 1;
subpassDescription.pColorAttachments = &colorReference;
subpassDescription.pDepthStencilAttachment = &depthReference;
// Use subpass dependencies for layout transitions
std::array<VkSubpassDependency, 2> dependencies;
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
// Create the actual renderpass
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attchmentDescriptions.size());
renderPassInfo.pAttachments = attchmentDescriptions.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpassDescription;
renderPassInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
renderPassInfo.pDependencies = dependencies.data();
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreenPass.renderPass));
VkImageView attachments[2];
attachments[0] = offscreenPass.color.view;
attachments[1] = offscreenPass.depth.view;
VkFramebufferCreateInfo fbufCreateInfo = vks::initializers::framebufferCreateInfo();
fbufCreateInfo.renderPass = offscreenPass.renderPass;
fbufCreateInfo.attachmentCount = 2;
fbufCreateInfo.pAttachments = attachments;
fbufCreateInfo.width = offscreenPass.width;
fbufCreateInfo.height = offscreenPass.height;
fbufCreateInfo.layers = 1;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreenPass.frameBuffer));
// Fill a descriptor for later use in a descriptor set
offscreenPass.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
offscreenPass.descriptor.imageView = offscreenPass.color.view;
offscreenPass.descriptor.sampler = offscreenPass.sampler;
}
void loadTexture(const char* fileName, VkFormat format, bool forceLinearTiling)
{
VkFormatProperties formatProperties;
VkResult err;
AAsset* asset = AAssetManager_open(app->activity->assetManager, fileName, AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
void *textureData = malloc(size);
AAsset_read(asset, textureData, size);
AAsset_close(asset);
gli::texture2D tex2D(gli::load((const char*)textureData, size));
assert(!tex2D.empty());
texture.width = tex2D[0].dimensions().x;
texture.height = tex2D[0].dimensions().y;
texture.mipLevels = tex2D.levels();
// Get device properites for the requested texture format
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
// Only use linear tiling if requested (and supported by the device)
// Support for linear tiling is mostly limited, so prefer to use
// optimal tiling instead
// On most implementations linear tiling will only support a very
// limited amount of formats and features (mip maps, cubemaps, arrays, etc.)
VkBool32 useStaging = true;
// Only use linear tiling if forced
if (forceLinearTiling)
{
// Don't use linear if format is not supported for (linear) shader sampling
useStaging = !(formatProperties.linearTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT);
}
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = 1;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_LINEAR;
imageCreateInfo.usage = (useStaging) ? VK_IMAGE_USAGE_TRANSFER_SRC_BIT : VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.flags = 0;
imageCreateInfo.extent = { texture.width, texture.height, 1 };
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
startSetupCommandBuffer();
if (useStaging)
{
// Load all available mip levels into linear textures
// and copy to optimal tiling target
struct MipLevel {
VkImage image;
VkDeviceMemory memory;
};
std::vector<MipLevel> mipLevels;
mipLevels.resize(texture.mipLevels);
// Copy mip levels
for (uint32_t level = 0; level < texture.mipLevels; ++level)
{
imageCreateInfo.extent.width = tex2D[level].dimensions().x;
imageCreateInfo.extent.height = tex2D[level].dimensions().y;
imageCreateInfo.extent.depth = 1;
err = vkCreateImage(device, &imageCreateInfo, nullptr, &mipLevels[level].image);
assert(!err);
vkGetImageMemoryRequirements(device, mipLevels[level].image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &mipLevels[level].memory);
assert(!err);
err = vkBindImageMemory(device, mipLevels[level].image, mipLevels[level].memory, 0);
assert(!err);
VkImageSubresource subRes = {};
subRes.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
VkSubresourceLayout subResLayout;
void *data;
vkGetImageSubresourceLayout(device, mipLevels[level].image, &subRes, &subResLayout);
assert(!err);
err = vkMapMemory(device, mipLevels[level].memory, 0, memReqs.size, 0, &data);
assert(!err);
size_t levelSize = tex2D[level].size();
memcpy(data, tex2D[level].data(), levelSize);
vkUnmapMemory(device, mipLevels[level].memory);
LOGW("setImageLayout %d", 1);
// Image barrier for linear image (base)
// Linear image will be used as a source for the copy
vkTools::setImageLayout(
setupCmdBuffer,
mipLevels[level].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
}
// Setup texture as blit target with optimal tiling
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.mipLevels = texture.mipLevels;
imageCreateInfo.extent = { texture.width, texture.height, 1 };
err = vkCreateImage(device, &imageCreateInfo, nullptr, &texture.image);
assert(!err);
vkGetImageMemoryRequirements(device, texture.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &texture.deviceMemory);
assert(!err);
err = vkBindImageMemory(device, texture.image, texture.deviceMemory, 0);
assert(!err);
// Image barrier for optimal image (target)
// Optimal image will be used as destination for the copy
vkTools::setImageLayout(
setupCmdBuffer,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
// Copy mip levels one by one
for (uint32_t level = 0; level < texture.mipLevels; ++level)
{
// Copy region for image blit
VkImageCopy copyRegion = {};
copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.srcSubresource.baseArrayLayer = 0;
copyRegion.srcSubresource.mipLevel = 0;
copyRegion.srcSubresource.layerCount = 1;
copyRegion.srcOffset = { 0, 0, 0 };
copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copyRegion.dstSubresource.baseArrayLayer = 0;
// Set mip level to copy the linear image to
copyRegion.dstSubresource.mipLevel = level;
copyRegion.dstSubresource.layerCount = 1;
copyRegion.dstOffset = { 0, 0, 0 };
copyRegion.extent.width = tex2D[level].dimensions().x;
copyRegion.extent.height = tex2D[level].dimensions().y;
copyRegion.extent.depth = 1;
// Put image copy into command buffer
vkCmdCopyImage(
setupCmdBuffer,
mipLevels[level].image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
texture.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1, ©Region);
// Change texture image layout to shader read after the copy
texture.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
setupCmdBuffer,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
texture.imageLayout);
}
// Clean up linear images
// No longer required after mip levels
// have been transformed over to optimal tiling
for (auto& level : mipLevels)
{
vkDestroyImage(device, level.image, nullptr);
vkFreeMemory(device, level.memory, nullptr);
}
}
else
{
// Prefer using optimal tiling, as linear tiling
// may support only a small set of features
// depending on implementation (e.g. no mip maps, only one layer, etc.)
VkImage mappableImage;
VkDeviceMemory mappableMemory;
// Load mip map level 0 to linear tiling image
err = vkCreateImage(device, &imageCreateInfo, nullptr, &mappableImage);
assert(!err);
// Get memory requirements for this image
// like size and alignment
vkGetImageMemoryRequirements(device, mappableImage, &memReqs);
// Set memory allocation size to required memory size
memAllocInfo.allocationSize = memReqs.size;
// Get memory type that can be mapped to host memory
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
// Allocate host memory
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &mappableMemory);
assert(!err);
// Bind allocated image for use
err = vkBindImageMemory(device, mappableImage, mappableMemory, 0);
assert(!err);
// Get sub resource layout
// Mip map count, array layer, etc.
VkImageSubresource subRes = {};
subRes.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
VkSubresourceLayout subResLayout;
void *data;
// Get sub resources layout
// Includes row pitch, size offsets, etc.
vkGetImageSubresourceLayout(device, mappableImage, &subRes, &subResLayout);
assert(!err);
// Map image memory
err = vkMapMemory(device, mappableMemory, 0, memReqs.size, 0, &data);
assert(!err);
// Copy image data into memory
memcpy(data, tex2D[subRes.mipLevel].data(), tex2D[subRes.mipLevel].size());
vkUnmapMemory(device, mappableMemory);
// Linear tiled images don't need to be staged
// and can be directly used as textures
texture.image = mappableImage;
texture.deviceMemory = mappableMemory;
texture.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Setup image memory barrier
vkTools::setImageLayout(
setupCmdBuffer,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
texture.imageLayout);
}
flushSetupCommandBuffer();
// Create sampler
// In Vulkan textures are accessed by samplers
// This separates all the sampling information from the
// texture data
// This means you could have multiple sampler objects
// for the same texture with different settings
// Similar to the samplers available with OpenGL 3.3
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
// Max level-of-detail should match mip level count
sampler.maxLod = (useStaging) ? (float)texture.mipLevels : 0.0f;
// Enable anisotropic filtering
sampler.maxAnisotropy = 8;
sampler.anisotropyEnable = VK_TRUE;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
err = vkCreateSampler(device, &sampler, nullptr, &texture.sampler);
assert(!err);
// Create image view
// Textures are not directly accessed by the shaders and
// are abstracted by image views containing additional
// information and sub resource ranges
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = VK_NULL_HANDLE;
view.viewType = VK_IMAGE_VIEW_TYPE_2D;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view.subresourceRange.baseMipLevel = 0;
view.subresourceRange.baseArrayLayer = 0;
view.subresourceRange.layerCount = 1;
// Linear tiling usually won't support mip maps
// Only set mip map count if optimal tiling is used
view.subresourceRange.levelCount = (useStaging) ? texture.mipLevels : 1;
view.image = texture.image;
err = vkCreateImageView(device, &view, nullptr, &texture.view);
assert(!err);
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Texture Initialization Sample";
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_connection(info);
init_window_size(info, 50, 50);
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);
/* VULKAN_KEY_START */
/*
* Set up textures:
* - Create a linear tiled image
* - Map it and write the texture data into it
* - If linear images cannot be used as textures, create an optimally
* tiled image and blit from the linearly tiled image to the optimally
* tiled image
* -
* -
* -
*/
struct texture_object texObj;
std::string filename = get_base_data_dir();
filename.append("lunarg.ppm");
if (!read_ppm(filename.c_str(), texObj.tex_width, texObj.tex_height, 0,
NULL)) {
std::cout << "Could not read texture file lunarg.ppm\n";
exit(-1);
}
VkFormatProperties formatProps;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], VK_FORMAT_R8G8B8A8_UNORM,
&formatProps);
/* See if we can use a linear tiled image for a texture, if not, we will
* need a staging image for the texture data */
bool needStaging = (!(formatProps.linearTilingFeatures &
VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
? true
: false;
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 = VK_FORMAT_R8G8B8A8_UNORM;
image_create_info.extent.width = texObj.tex_width;
image_create_info.extent.height = texObj.tex_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_LINEAR;
image_create_info.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
image_create_info.usage = needStaging ? VK_IMAGE_USAGE_TRANSFER_SRC_BIT
: VK_IMAGE_USAGE_SAMPLED_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 mappableImage;
VkDeviceMemory mappableMemory;
VkMemoryRequirements mem_reqs;
/* Create a mappable image. It will be the texture if linear images are ok
* to be textures or it will be the staging image if they are not.
*/
res = vkCreateImage(info.device, &image_create_info, NULL, &mappableImage);
assert(res == VK_SUCCESS);
vkGetImageMemoryRequirements(info.device, mappableImage, &mem_reqs);
mem_alloc.allocationSize = mem_reqs.size;
/* Find the memory type that is host mappable */
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&mem_alloc.memoryTypeIndex);
assert(pass);
/* allocate memory */
res = vkAllocateMemory(info.device, &mem_alloc, NULL, &(mappableMemory));
assert(res == VK_SUCCESS);
/* bind memory */
res = vkBindImageMemory(info.device, mappableImage, mappableMemory, 0);
assert(res == VK_SUCCESS);
VkImageSubresource subres = {};
subres.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subres.mipLevel = 0;
subres.arrayLayer = 0;
VkSubresourceLayout layout;
void *data;
/* Get the subresource layout so we know what the row pitch is */
vkGetImageSubresourceLayout(info.device, mappableImage, &subres, &layout);
res = vkMapMemory(info.device, mappableMemory, 0, mem_reqs.size, 0, &data);
assert(res == VK_SUCCESS);
/* Read the ppm file into the mappable image's memory */
if (!read_ppm(filename.c_str(), texObj.tex_width, texObj.tex_height,
layout.rowPitch, (unsigned char *)data)) {
std::cout << "Could not load texture file lunarg.ppm\n";
exit(-1);
}
vkUnmapMemory(info.device, mappableMemory);
if (!needStaging) {
/* If we can use the linear tiled image as a texture, just do it */
texObj.image = mappableImage;
texObj.mem = mappableMemory;
texObj.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
set_image_layout(info, texObj.image, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED, texObj.imageLayout);
} else {
/* The mappable image cannot be our texture, so create an optimally
* tiled image and blit to it */
image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL;
image_create_info.usage =
VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
res =
vkCreateImage(info.device, &image_create_info, NULL, &texObj.image);
assert(res == VK_SUCCESS);
vkGetImageMemoryRequirements(info.device, texObj.image, &mem_reqs);
mem_alloc.allocationSize = mem_reqs.size;
/* Find memory type - don't specify any mapping requirements */
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits, 0,
&mem_alloc.memoryTypeIndex);
assert(pass);
/* allocate memory */
res = vkAllocateMemory(info.device, &mem_alloc, NULL, &texObj.mem);
assert(res == VK_SUCCESS);
/* bind memory */
res = vkBindImageMemory(info.device, texObj.image, texObj.mem, 0);
assert(res == VK_SUCCESS);
/* Since we're going to blit from the mappable image, set its layout to
* SOURCE_OPTIMAL */
/* Side effect is that this will create info.cmd */
set_image_layout(info, mappableImage, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_PREINITIALIZED,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
/* Since we're going to blit to the texture image, set its layout to
* DESTINATION_OPTIMAL */
set_image_layout(info, texObj.image, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkImageCopy copy_region;
copy_region.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copy_region.srcSubresource.mipLevel = 0;
copy_region.srcSubresource.baseArrayLayer = 0;
copy_region.srcSubresource.layerCount = 1;
copy_region.srcOffset.x = 0;
copy_region.srcOffset.y = 0;
copy_region.srcOffset.z = 0;
copy_region.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copy_region.dstSubresource.mipLevel = 0;
copy_region.dstSubresource.baseArrayLayer = 0;
copy_region.dstSubresource.layerCount = 1;
copy_region.dstOffset.x = 0;
copy_region.dstOffset.y = 0;
copy_region.dstOffset.z = 0;
copy_region.extent.width = texObj.tex_width;
copy_region.extent.height = texObj.tex_height;
copy_region.extent.depth = 1;
/* Put the copy command into the command buffer */
vkCmdCopyImage(info.cmd, mappableImage,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, texObj.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ©_region);
/* Set the layout for the texture image from DESTINATION_OPTIMAL to
* SHADER_READ_ONLY */
texObj.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
set_image_layout(info, texObj.image, VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
texObj.imageLayout);
}
execute_end_command_buffer(info);
execute_queue_command_buffer(info);
VkSamplerCreateInfo samplerCreateInfo = {};
samplerCreateInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerCreateInfo.magFilter = VK_FILTER_NEAREST;
samplerCreateInfo.minFilter = VK_FILTER_NEAREST;
samplerCreateInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
samplerCreateInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerCreateInfo.mipLodBias = 0.0;
samplerCreateInfo.anisotropyEnable = VK_FALSE,
samplerCreateInfo.maxAnisotropy = 0;
samplerCreateInfo.compareEnable = VK_FALSE;
samplerCreateInfo.compareOp = VK_COMPARE_OP_NEVER;
samplerCreateInfo.minLod = 0.0;
samplerCreateInfo.maxLod = 0.0;
samplerCreateInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
/* create sampler */
res =
vkCreateSampler(info.device, &samplerCreateInfo, NULL, &texObj.sampler);
assert(res == VK_SUCCESS);
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 = VK_FORMAT_R8G8B8A8_UNORM;
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;
/* create image view */
view_info.image = texObj.image;
res = vkCreateImageView(info.device, &view_info, NULL, &texObj.view);
assert(res == VK_SUCCESS);
info.textures.push_back(texObj);
/* VULKAN_KEY_END */
/* Clean Up */
vkDestroySampler(info.device, texObj.sampler, NULL);
vkDestroyImageView(info.device, texObj.view, NULL);
vkDestroyImage(info.device, texObj.image, NULL);
vkFreeMemory(info.device, texObj.mem, NULL);
if (needStaging) {
/* Release the resources for the staging image */
vkFreeMemory(info.device, mappableMemory, NULL);
vkDestroyImage(info.device, mappableImage, NULL);
}
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
// Prepare all Vulkan resources for the 3D texture (including descriptors)
// Does not fill the texture with data
void prepareNoiseTexture(uint32_t width, uint32_t height, uint32_t depth)
{
// A 3D texture is described as width x height x depth
texture.width = width;
texture.height = height;
texture.depth = depth;
texture.mipLevels = 1;
texture.format = VK_FORMAT_R8_UNORM;
// Format support check
// 3D texture support in Vulkan is mandatory (in contrast to OpenGL) so no need to check if it's supported
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, texture.format, &formatProperties);
// Check if format supports transfer
if (0 == (formatProperties.optimalTilingFeatures & VK_IMAGE_USAGE_TRANSFER_DST_BIT))
{
std::cout << "Error: Device does not support flag TRANSFER_DST for selected texture format!" << std::endl;
return;
}
// Check if GPU supports requested 3D texture dimensions
uint32_t maxImageDimension3D(vulkanDevice->properties.limits.maxImageDimension3D);
if (width > maxImageDimension3D || height > maxImageDimension3D || depth > maxImageDimension3D)
{
std::cout << "Error: Requested texture dimensions is greater than supported 3D texture dimension!" << std::endl;
return;
}
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_3D;
imageCreateInfo.format = texture.format;
imageCreateInfo.mipLevels = texture.mipLevels;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.extent.width = texture.width;
imageCreateInfo.extent.height = texture.width;
imageCreateInfo.extent.depth = texture.depth;
// Set initial layout of the image to undefined
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &texture.image));
// Device local memory to back up image
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs = {};
vkGetImageMemoryRequirements(device, texture.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &texture.deviceMemory));
VK_CHECK_RESULT(vkBindImageMemory(device, texture.image, texture.deviceMemory, 0));
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.mipLodBias = 0.0f;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.maxAnisotropy = 1.0;
sampler.anisotropyEnable = VK_FALSE;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &texture.sampler));
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = texture.image;
view.viewType = VK_IMAGE_VIEW_TYPE_3D;
view.format = texture.format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view.subresourceRange.baseMipLevel = 0;
view.subresourceRange.baseArrayLayer = 0;
view.subresourceRange.layerCount = 1;
view.subresourceRange.levelCount = 1;
VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &texture.view));
// Fill image descriptor image info to be used descriptor set setup
texture.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
texture.descriptor.imageView = texture.view;
texture.descriptor.sampler = texture.sampler;
}
void loadTexture(std::string fileName, VkFormat format, bool forceLinearTiling)
{
#if defined(__ANDROID__)
// Textures are stored inside the apk on Android (compressed)
// So they need to be loaded via the asset manager
AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, fileName.c_str(), AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
void *textureData = malloc(size);
AAsset_read(asset, textureData, size);
AAsset_close(asset);
gli::texture2d tex2D(gli::load((const char*)textureData, size));
#else
gli::texture2d tex2D(gli::load(fileName));
#endif
assert(!tex2D.empty());
VkFormatProperties formatProperties;
texture.width = static_cast<uint32_t>(tex2D[0].extent().x);
texture.height = static_cast<uint32_t>(tex2D[0].extent().y);
// calculate num of mip maps
// numLevels = 1 + floor(log2(max(w, h, d)))
// Calculated as log2(max(width, height, depth))c + 1 (see specs)
texture.mipLevels = floor(log2(std::max(texture.width, texture.height))) + 1;
// Get device properites for the requested texture format
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
// Mip-chain generation requires support for blit source and destination
assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_SRC_BIT);
assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_DST_BIT);
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs = {};
// Create a host-visible staging buffer that contains the raw image data
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkBufferCreateInfo bufferCreateInfo = vkTools::initializers::bufferCreateInfo();
bufferCreateInfo.size = tex2D.size();
// This buffer is used as a transfer source for the buffer copy
bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
VK_CHECK_RESULT(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &stagingBuffer));
vkGetBufferMemoryRequirements(device, stagingBuffer, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &stagingMemory));
VK_CHECK_RESULT(vkBindBufferMemory(device, stagingBuffer, stagingMemory, 0));
// Copy texture data into staging buffer
uint8_t *data;
VK_CHECK_RESULT(vkMapMemory(device, stagingMemory, 0, memReqs.size, 0, (void **)&data));
memcpy(data, tex2D.data(), tex2D.size());
vkUnmapMemory(device, stagingMemory);
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = texture.mipLevels;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageCreateInfo.extent = { texture.width, texture.height, 1 };
imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &texture.image));
vkGetImageMemoryRequirements(device, texture.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &texture.deviceMemory));
VK_CHECK_RESULT(vkBindImageMemory(device, texture.image, texture.deviceMemory, 0));
VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = 1;
// Optimal image will be used as destination for the copy, so we must transfer from our initial undefined image layout to the transfer destination layout
vkTools::setImageLayout(copyCmd, texture.image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, subresourceRange);
// Copy the first mip of the chain, remaining mips will be generated
VkBufferImageCopy bufferCopyRegion = {};
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
bufferCopyRegion.imageSubresource.mipLevel = 0;
bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = texture.width;
bufferCopyRegion.imageExtent.height = texture.height;
bufferCopyRegion.imageExtent.depth = 1;
vkCmdCopyBufferToImage(copyCmd, stagingBuffer, texture.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &bufferCopyRegion);
// Transition first mip level to transfer source for read during blit
texture.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
copyCmd,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
subresourceRange);
VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
// Clean up staging resources
vkFreeMemory(device, stagingMemory, nullptr);
vkDestroyBuffer(device, stagingBuffer, nullptr);
// Generate the mip chain
// ---------------------------------------------------------------
// We copy down the whole mip chain doing a blit from mip-1 to mip
// An alternative way would be to always blit from the first mip level and sample that one down
VkCommandBuffer blitCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
// Copy down mips from n-1 to n
for (int32_t i = 1; i < texture.mipLevels; i++)
{
VkImageBlit imageBlit{};
// Source
imageBlit.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageBlit.srcSubresource.layerCount = 1;
imageBlit.srcSubresource.mipLevel = i-1;
imageBlit.srcOffsets[1].x = int32_t(texture.width >> (i - 1));
imageBlit.srcOffsets[1].y = int32_t(texture.height >> (i - 1));
imageBlit.srcOffsets[1].z = 1;
// Destination
imageBlit.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageBlit.dstSubresource.layerCount = 1;
imageBlit.dstSubresource.mipLevel = i;
imageBlit.dstOffsets[1].x = int32_t(texture.width >> i);
imageBlit.dstOffsets[1].y = int32_t(texture.height >> i);
imageBlit.dstOffsets[1].z = 1;
VkImageSubresourceRange mipSubRange = {};
mipSubRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
mipSubRange.baseMipLevel = i;
mipSubRange.levelCount = 1;
mipSubRange.layerCount = 1;
// Transiton current mip level to transfer dest
vkTools::setImageLayout(
blitCmd,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
mipSubRange,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_HOST_BIT);
// Blit from previous level
vkCmdBlitImage(
blitCmd,
texture.image,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
texture.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&imageBlit,
VK_FILTER_LINEAR);
// Transiton current mip level to transfer source for read in next iteration
vkTools::setImageLayout(
blitCmd,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
mipSubRange,
VK_PIPELINE_STAGE_HOST_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
}
// After the loop, all mip layers are in TRANSFER_SRC layout, so transition all to SHADER_READ
subresourceRange.levelCount = texture.mipLevels;
vkTools::setImageLayout(
blitCmd,
texture.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
texture.imageLayout,
subresourceRange);
VulkanExampleBase::flushCommandBuffer(blitCmd, queue, true);
// ---------------------------------------------------------------
// Create samplers
samplers.resize(3);
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
sampler.addressModeV = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
sampler.addressModeW = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
sampler.mipLodBias = 0.0f;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
sampler.maxAnisotropy = 1.0;
sampler.anisotropyEnable = VK_FALSE;
// Without mip mapping
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &samplers[0]));
// With mip mapping
sampler.maxLod = (float)texture.mipLevels;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &samplers[1]));
// With mip mapping and anisotropic filtering
if (vulkanDevice->features.samplerAnisotropy)
{
sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
sampler.anisotropyEnable = VK_TRUE;
}
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &samplers[2]));
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = texture.image;
view.viewType = VK_IMAGE_VIEW_TYPE_2D;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view.subresourceRange.baseMipLevel = 0;
view.subresourceRange.baseArrayLayer = 0;
view.subresourceRange.layerCount = 1;
view.subresourceRange.levelCount = texture.mipLevels;
VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &texture.view));
}
// Preapre an empty texture as the blit target from
// the offscreen framebuffer
void prepareTextureTarget(uint32_t width, uint32_t height, VkFormat format)
{
createSetupCommandBuffer();
VkResult err;
// Get device properites for the requested texture format
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
// Check if format is supported for optimal tiling
assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT);
// Prepare blit target texture
offScreenFrameBuf.textureTarget.width = width;
offScreenFrameBuf.textureTarget.height = height;
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = format;
imageCreateInfo.extent = { width, height, 1 };
imageCreateInfo.mipLevels = 1;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
imageCreateInfo.flags = 0;
imageCreateInfo.pQueueFamilyIndices = 0;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
err = vkCreateImage(device, &imageCreateInfo, nullptr, &offScreenFrameBuf.textureTarget.image);
assert(!err);
vkGetImageMemoryRequirements(device, offScreenFrameBuf.textureTarget.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &memAllocInfo.memoryTypeIndex);
err = vkAllocateMemory(device, &memAllocInfo, nullptr, &offScreenFrameBuf.textureTarget.deviceMemory);
assert(!err);
err = vkBindImageMemory(device, offScreenFrameBuf.textureTarget.image, offScreenFrameBuf.textureTarget.deviceMemory, 0);
assert(!err);
offScreenFrameBuf.textureTarget.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
setupCmdBuffer,
offScreenFrameBuf.textureTarget.image,
VK_IMAGE_ASPECT_DEPTH_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
offScreenFrameBuf.textureTarget.imageLayout);
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = TEX_FILTER;
sampler.minFilter = TEX_FILTER;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
err = vkCreateSampler(device, &sampler, nullptr, &offScreenFrameBuf.textureTarget.sampler);
assert(!err);
// Create image view
VkImageViewCreateInfo view = {};
view.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view.pNext = NULL;
view.viewType = VK_IMAGE_VIEW_TYPE_2D;
view.format = format;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_DEPTH_BIT, 0, 1, 0, 1 };
view.image = offScreenFrameBuf.textureTarget.image;
err = vkCreateImageView(device, &view, nullptr, &offScreenFrameBuf.textureTarget.view);
assert(!err);
flushSetupCommandBuffer();
}
