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#include "shaders/vulkan_program_pool.hpp"
#include "shaders/program_params.hpp"
#include "drape/vulkan/vulkan_base_context.hpp"
#include "drape/vulkan/vulkan_utils.hpp"
#include "platform/platform.hpp"
#include "coding/reader.hpp"
#include "coding/serdes_json.hpp"
#include "base/file_name_utils.hpp"
#include "base/logging.hpp"
#include <cstdint>
#include <map>
#include <string>
#include <vector>
namespace gpu
{
namespace vulkan
{
namespace
{
int8_t constexpr kInvalidBindingIndex = -1;
std::string const kShadersDir = "vulkan_shaders";
std::string const kShadersReflecton = "reflection.json";
std::string const kShadersPackFile = "shaders_pack.spv";
std::vector<uint8_t> ReadShadersPackFile(std::string const & filename)
{
std::vector<uint8_t> result;
try
{
ReaderPtr<Reader> reader(GetPlatform().GetReader(filename));
auto const size = static_cast<size_t>(reader.Size());
CHECK(size % sizeof(uint32_t) == 0, ("Incorrect SPIR-V file alignment."));
result.resize(size);
reader.Read(0, result.data(), size);
}
catch (RootException const & e)
{
CHECK(false, ("Error reading shader file ", filename, " : ", e.what()));
return {};
}
return result;
}
struct TextureBindingReflectionInfo
{
std::string m_name;
int8_t m_index = kInvalidBindingIndex;
int8_t m_isInFragmentShader = 1;
DECLARE_VISITOR(visitor(m_name, "name"),
visitor(m_index, "idx"),
visitor(m_isInFragmentShader, "frag"))
};
struct ReflectionInfo
{
int8_t m_vsUniformsIndex = kInvalidBindingIndex;
int8_t m_fsUniformsIndex = kInvalidBindingIndex;
std::vector<TextureBindingReflectionInfo> m_textures;
DECLARE_VISITOR(visitor(m_vsUniformsIndex, "vs_uni"),
visitor(m_fsUniformsIndex, "fs_uni"),
visitor(m_textures, "tex"))
};
struct ReflectionData
{
int32_t m_programIndex = -1;
uint32_t m_vsOffset = 0;
uint32_t m_fsOffset = 0;
uint32_t m_vsSize = 0;
uint32_t m_fsSize = 0;
ReflectionInfo m_info;
DECLARE_VISITOR(visitor(m_programIndex, "prg"),
visitor(m_vsOffset, "vs_off"),
visitor(m_fsOffset, "fs_off"),
visitor(m_vsSize, "vs_size"),
visitor(m_fsSize, "fs_size"),
visitor(m_info, "info"))
};
struct ReflectionFile
{
std::vector<ReflectionData> m_reflectionData;
DECLARE_VISITOR(visitor(m_reflectionData))
};
std::map<uint8_t, ReflectionData> ReadReflectionFile(std::string const & filename)
{
std::map<uint8_t, ReflectionData> result;
std::string jsonStr;
try
{
ReaderPtr<Reader>(GetPlatform().GetReader(filename)).ReadAsString(jsonStr);
}
catch (RootException const & e)
{
LOG(LERROR, ("Error reading file ", filename, ":", e.what()));
return {};
}
ReflectionFile reflectionFile;
try
{
coding::DeserializerJson des(jsonStr);
des(reflectionFile);
}
catch (base::Json::Exception const & e)
{
LOG(LERROR, ("Error deserialization reflection file :", e.what()));
return {};
}
for (auto & d : reflectionFile.m_reflectionData)
{
auto const index = d.m_programIndex;
result.insert(std::make_pair(index, std::move(d)));
}
return result;
}
std::vector<VkDescriptorSetLayoutBinding> GetLayoutBindings(ReflectionInfo const & reflectionInfo)
{
std::vector<VkDescriptorSetLayoutBinding> result;
VkDescriptorSetLayoutBinding uniformsBinding = {};
uniformsBinding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
uniformsBinding.descriptorCount = 1;
if (reflectionInfo.m_vsUniformsIndex != kInvalidBindingIndex &&
reflectionInfo.m_fsUniformsIndex != kInvalidBindingIndex)
{
CHECK_EQUAL(reflectionInfo.m_vsUniformsIndex, reflectionInfo.m_fsUniformsIndex, ());
uniformsBinding.binding = static_cast<uint32_t>(reflectionInfo.m_vsUniformsIndex);
uniformsBinding.stageFlags = VK_SHADER_STAGE_ALL_GRAPHICS;
result.push_back(std::move(uniformsBinding));
}
else if (reflectionInfo.m_vsUniformsIndex != kInvalidBindingIndex)
{
uniformsBinding.binding = static_cast<uint32_t>(reflectionInfo.m_vsUniformsIndex);
uniformsBinding.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
result.push_back(std::move(uniformsBinding));
}
else if (reflectionInfo.m_fsUniformsIndex != kInvalidBindingIndex)
{
uniformsBinding.binding = static_cast<uint32_t>(reflectionInfo.m_fsUniformsIndex);
uniformsBinding.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
result.push_back(std::move(uniformsBinding));
}
else
{
CHECK(false, ("Uniforms must be at least in one shader."));
}
for (auto const & t : reflectionInfo.m_textures)
{
CHECK_GREATER_OR_EQUAL(t.m_index, 0, ());
VkDescriptorSetLayoutBinding textureBinding = {};
textureBinding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
textureBinding.binding = static_cast<uint32_t>(t.m_index);
textureBinding.descriptorCount = 1;
textureBinding.stageFlags =
(t.m_isInFragmentShader == 1) ? VK_SHADER_STAGE_FRAGMENT_BIT : VK_SHADER_STAGE_VERTEX_BIT;
result.push_back(std::move(textureBinding));
}
return result;
}
VkShaderModule LoadShaderModule(VkDevice device, std::vector<uint8_t> const & packData,
uint32_t offset, uint32_t size)
{
VkShaderModule shaderModule;
CHECK(offset % sizeof(uint32_t) == 0, ("Incorrect SPIR-V file alignment."));
CHECK(size % sizeof(uint32_t) == 0, ("Incorrect SPIR-V file size."));
VkShaderModuleCreateInfo moduleCreateInfo = {};
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = nullptr;
moduleCreateInfo.codeSize = size;
moduleCreateInfo.pCode = reinterpret_cast<uint32_t const *>(packData.data() + offset);
moduleCreateInfo.flags = 0;
CHECK_VK_CALL(vkCreateShaderModule(device, &moduleCreateInfo, nullptr, &shaderModule));
return shaderModule;
}
} // namespace
VulkanProgramPool::VulkanProgramPool(ref_ptr<dp::GraphicsContext> context)
{
ref_ptr<dp::vulkan::VulkanBaseContext> vulkanContext = context;
VkDevice device = vulkanContext->GetDevice();
auto reflection = ReadReflectionFile(base::JoinPath(kShadersDir, kShadersReflecton));
CHECK_EQUAL(reflection.size(), static_cast<size_t>(Program::ProgramsCount), ());
auto packFileData = ReadShadersPackFile(base::JoinPath(kShadersDir, kShadersPackFile));
for (size_t i = 0; i < static_cast<size_t>(Program::ProgramsCount); ++i)
{
auto const & refl = reflection[i];
m_programData[i].m_vertexShader = LoadShaderModule(device, packFileData,
refl.m_vsOffset, refl.m_vsSize);
m_programData[i].m_fragmentShader = LoadShaderModule(device, packFileData,
refl.m_fsOffset, refl.m_fsSize);
auto bindings = GetLayoutBindings(refl.m_info);
VkDescriptorSetLayoutCreateInfo descriptorLayout = {};
descriptorLayout.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptorLayout.pBindings = bindings.data();
descriptorLayout.bindingCount = static_cast<uint32_t>(bindings.size());
CHECK_VK_CALL(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr,
&m_programData[i].m_descriptorSetLayout));
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo = {};
pipelineLayoutCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo.setLayoutCount = 1;
pipelineLayoutCreateInfo.pSetLayouts = &m_programData[i].m_descriptorSetLayout;
CHECK_VK_CALL(vkCreatePipelineLayout(device, &pipelineLayoutCreateInfo, nullptr,
&m_programData[i].m_pipelineLayout));
for (auto const & t : refl.m_info.m_textures)
m_programData[i].m_textureBindings[t.m_name] = t.m_index;
}
ProgramParams::Init();
}
VulkanProgramPool::~VulkanProgramPool()
{
ProgramParams::Destroy();
}
void VulkanProgramPool::Destroy(ref_ptr<dp::GraphicsContext> context)
{
ref_ptr<dp::vulkan::VulkanBaseContext> vulkanContext = context;
VkDevice device = vulkanContext->GetDevice();
for (auto & d : m_programData)
{
vkDestroyPipelineLayout(device, d.m_pipelineLayout, nullptr);
vkDestroyDescriptorSetLayout(device, d.m_descriptorSetLayout, nullptr);
vkDestroyShaderModule(device, d.m_vertexShader, nullptr);
vkDestroyShaderModule(device, d.m_fragmentShader, nullptr);
}
}
drape_ptr<dp::GpuProgram> VulkanProgramPool::Get(Program program)
{
auto const & d = m_programData[static_cast<size_t>(program)];
VkPipelineShaderStageCreateInfo vsStage = {};
vsStage.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
vsStage.stage = VK_SHADER_STAGE_VERTEX_BIT;
vsStage.module = d.m_vertexShader;
vsStage.pName = "main";
VkPipelineShaderStageCreateInfo fsStage = {};
fsStage.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
fsStage.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
fsStage.module = d.m_fragmentShader;
fsStage.pName = "main";
return make_unique_dp<dp::vulkan::VulkanGpuProgram>(DebugPrint(program),
vsStage, fsStage,
d.m_descriptorSetLayout,
d.m_pipelineLayout,
d.m_textureBindings);
}
} // namespace vulkan
} // namespace gpu
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