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RmlUi_Renderer_VK.cpp
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RmlUi_Renderer_VK.cpp
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/*
* This source file is part of RmlUi, the HTML/CSS Interface Middleware
*
* For the latest information, see http://github.com/mikke89/RmlUi
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
* Copyright (c) 2019-2023 The RmlUi Team, and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "RmlUi_Renderer_VK.h"
#include "RmlUi_Vulkan/ShadersCompiledSPV.h"
#include <RmlUi/Core/Core.h>
#include <RmlUi/Core/FileInterface.h>
#include <RmlUi/Core/Log.h>
#include <RmlUi/Core/Platform.h>
#include <RmlUi/Core/Profiling.h>
#include <algorithm>
#include <string.h>
// AlignUp(314, 256) = 512
template <typename T>
static T AlignUp(T val, T alignment)
{
return (val + alignment - (T)1) & ~(alignment - (T)1);
}
VkValidationFeaturesEXT debug_validation_features_ext = {};
VkValidationFeatureEnableEXT debug_validation_features_ext_requested[] = {
VK_VALIDATION_FEATURE_ENABLE_GPU_ASSISTED_EXT,
VK_VALIDATION_FEATURE_ENABLE_SYNCHRONIZATION_VALIDATION_EXT,
VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT,
};
#ifdef RMLUI_VK_DEBUG
static Rml::String FormatByteSize(VkDeviceSize size) noexcept
{
constexpr VkDeviceSize K = VkDeviceSize(1024);
if (size < K)
return Rml::CreateString(32, "%zu B", size);
else if (size < K * K)
return Rml::CreateString(32, "%g KB", double(size) / double(K));
return Rml::CreateString(32, "%g MB", double(size) / double(K * K));
}
static VKAPI_ATTR VkBool32 VKAPI_CALL MyDebugReportCallback(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT /*objectType*/,
uint64_t /*object*/, size_t /*location*/, int32_t /*messageCode*/, const char* /*pLayerPrefix*/, const char* pMessage, void* /*pUserData*/)
{
if (flags & VkDebugReportFlagBitsEXT::VK_DEBUG_REPORT_INFORMATION_BIT_EXT || flags & VkDebugReportFlagBitsEXT::VK_DEBUG_REPORT_DEBUG_BIT_EXT)
{
return VK_FALSE;
}
#ifdef RMLUI_PLATFORM_WIN32
if (flags & VkDebugReportFlagBitsEXT::VK_DEBUG_REPORT_ERROR_BIT_EXT)
{
// some logs are not passed to our UI, because of early calling for explicity I put native log output
OutputDebugString(TEXT("\n"));
OutputDebugStringA(pMessage);
}
#endif
Rml::Log::Message(Rml::Log::LT_ERROR, "[Vulkan][VALIDATION] %s ", pMessage);
return VK_FALSE;
}
#endif
RenderInterface_VK::RenderInterface_VK() :
m_is_transform_enabled{false}, m_is_apply_to_regular_geometry_stencil{false}, m_is_use_scissor_specified{false}, m_is_use_stencil_pipeline{false},
m_width{}, m_height{}, m_queue_index_present{}, m_queue_index_graphics{}, m_queue_index_compute{}, m_semaphore_index{},
m_semaphore_index_previous{}, m_image_index{}, m_p_instance{}, m_p_device{}, m_p_physical_device{}, m_p_surface{}, m_p_swapchain{},
m_p_allocator{}, m_p_current_command_buffer{}, m_p_descriptor_set_layout_vertex_transform{}, m_p_descriptor_set_layout_texture{},
m_p_pipeline_layout{}, m_p_pipeline_with_textures{}, m_p_pipeline_without_textures{},
m_p_pipeline_stencil_for_region_where_geometry_will_be_drawn{}, m_p_pipeline_stencil_for_regular_geometry_that_applied_to_region_with_textures{},
m_p_pipeline_stencil_for_regular_geometry_that_applied_to_region_without_textures{}, m_p_descriptor_set{}, m_p_render_pass{},
m_p_sampler_linear{}, m_scissor{}, m_scissor_original{}, m_viewport{}, m_p_queue_present{}, m_p_queue_graphics{}, m_p_queue_compute{},
#ifdef RMLUI_VK_DEBUG
m_debug_report_callback_instance{},
#endif
m_swapchain_format{}, m_texture_depthstencil{}, m_pending_for_deletion_textures_by_frames{}
{}
RenderInterface_VK::~RenderInterface_VK() {}
void RenderInterface_VK::RenderGeometry(Rml::Vertex* vertices, int num_vertices, int* indices, int num_indices, Rml::TextureHandle texture,
const Rml::Vector2f& translation)
{
Rml::CompiledGeometryHandle handle = CompileGeometry(vertices, num_vertices, indices, num_indices, texture);
if (handle)
{
RenderCompiledGeometry(handle, translation);
ReleaseCompiledGeometry(handle);
}
}
Rml::CompiledGeometryHandle RenderInterface_VK::CompileGeometry(Rml::Vertex* vertices, int num_vertices, int* indices, int num_indices,
Rml::TextureHandle texture)
{
RMLUI_ZoneScopedN("Vulkan - CompileGeometry");
texture_data_t* p_texture = reinterpret_cast<texture_data_t*>(texture);
VkDescriptorSet p_current_descriptor_set = nullptr;
p_current_descriptor_set = m_p_descriptor_set;
RMLUI_VK_ASSERTMSG(p_current_descriptor_set,
"you can't have here an invalid pointer of VkDescriptorSet. Two reason might be. 1. - you didn't allocate it "
"at all or 2. - Somehing is wrong with allocation and somehow it was corrupted by something.");
auto* p_geometry_handle = new geometry_handle_t{};
VkDescriptorImageInfo info_descriptor_image = {};
if (p_texture && p_texture->m_p_vk_descriptor_set == nullptr)
{
VkDescriptorSet p_texture_set = nullptr;
m_manager_descriptors.Alloc_Descriptor(m_p_device, &m_p_descriptor_set_layout_texture, &p_texture_set);
info_descriptor_image.imageView = p_texture->m_p_vk_image_view;
info_descriptor_image.sampler = p_texture->m_p_vk_sampler;
info_descriptor_image.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
VkWriteDescriptorSet info_write = {};
info_write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
info_write.dstSet = p_texture_set;
info_write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
info_write.dstBinding = 2;
info_write.pImageInfo = &info_descriptor_image;
info_write.descriptorCount = 1;
vkUpdateDescriptorSets(m_p_device, 1, &info_write, 0, nullptr);
p_texture->m_p_vk_descriptor_set = p_texture_set;
}
uint32_t* pCopyDataToBuffer = nullptr;
const void* pData = reinterpret_cast<const void*>(vertices);
bool status = m_memory_pool.Alloc_VertexBuffer(num_vertices, sizeof(Rml::Vertex), reinterpret_cast<void**>(&pCopyDataToBuffer),
&p_geometry_handle->m_p_vertex, &p_geometry_handle->m_p_vertex_allocation);
RMLUI_VK_ASSERTMSG(status, "failed to AllocVertexBuffer");
memcpy(pCopyDataToBuffer, pData, sizeof(Rml::Vertex) * num_vertices);
status = m_memory_pool.Alloc_IndexBuffer(num_indices, sizeof(int), reinterpret_cast<void**>(&pCopyDataToBuffer), &p_geometry_handle->m_p_index,
&p_geometry_handle->m_p_index_allocation);
RMLUI_VK_ASSERTMSG(status, "failed to AllocIndexBuffer");
memcpy(pCopyDataToBuffer, indices, sizeof(int) * num_indices);
p_geometry_handle->m_has_texture = static_cast<bool>(texture);
p_geometry_handle->m_num_indices = num_indices;
p_geometry_handle->m_p_texture = p_texture;
return Rml::CompiledGeometryHandle(p_geometry_handle);
}
void RenderInterface_VK::RenderCompiledGeometry(Rml::CompiledGeometryHandle geometry, const Rml::Vector2f& translation)
{
RMLUI_ZoneScopedN("Vulkan - RenderCompiledGeometry");
if (m_p_current_command_buffer == nullptr)
return;
RMLUI_VK_ASSERTMSG(m_p_current_command_buffer, "must be valid otherwise you can't render now!!! (can't be)");
geometry_handle_t* p_casted_compiled_geometry = reinterpret_cast<geometry_handle_t*>(geometry);
m_user_data_for_vertex_shader.m_translate = translation;
VkDescriptorSet p_current_descriptor_set = nullptr;
p_current_descriptor_set = m_p_descriptor_set;
RMLUI_VK_ASSERTMSG(p_current_descriptor_set,
"you can't have here an invalid pointer of VkDescriptorSet. Two reason might be. 1. - you didn't allocate it "
"at all or 2. - Somehing is wrong with allocation and somehow it was corrupted by something.");
shader_vertex_user_data_t* p_data = nullptr;
if (p_casted_compiled_geometry->m_p_shader_allocation == nullptr)
{
// it means it was freed in ReleaseCompiledGeometry method
bool status = m_memory_pool.Alloc_GeneralBuffer(sizeof(m_user_data_for_vertex_shader), reinterpret_cast<void**>(&p_data),
&p_casted_compiled_geometry->m_p_shader, &p_casted_compiled_geometry->m_p_shader_allocation);
RMLUI_VK_ASSERTMSG(status, "failed to allocate VkDescriptorBufferInfo for uniform data to shaders");
}
else
{
// it means our state is dirty and we need to update data, but it is not right in terms of architecture, for real better experience would
// be great to free all "compiled" geometries and "re-build" them in one general way, but here I got only three callings for
// font-face-layer textures (loaddocument example) and that shit. So better to think how to make it right, if it is fine okay, if it is
// not okay and like we really expect that ReleaseCompiledGeometry for all objects that needs to be rebuilt so better to implement that,
// but still it is a big architectural thing (or at least you need to do something big commits here to implement a such feature), so my
// implementation doesn't break anything what we had, but still it looks strange. If I get callings for releasing maybe I need to use it
// for all objects not separately????? Otherwise it is better to provide method for resizing (or some kind of "resizing" callback) for
// recalculating all geometry IDK, so it means you pass the existed geometry that wasn't pass to ReleaseCompiledGeometry, but from another
// hand you need to re-build compiled geometry again so we have two kinds of geometry one is compiled and never changes and one is dynamic
// and it goes through pipeline InitializationOfProgram...->Compile->Render->Release->Compile->Render->Release...
m_memory_pool.Free_GeometryHandle_ShaderDataOnly(p_casted_compiled_geometry);
bool status = m_memory_pool.Alloc_GeneralBuffer(sizeof(m_user_data_for_vertex_shader), reinterpret_cast<void**>(&p_data),
&p_casted_compiled_geometry->m_p_shader, &p_casted_compiled_geometry->m_p_shader_allocation);
RMLUI_VK_ASSERTMSG(status, "failed to allocate VkDescriptorBufferInfo for uniform data to shaders");
}
if (p_data)
{
p_data->m_transform = m_user_data_for_vertex_shader.m_transform;
p_data->m_translate = m_user_data_for_vertex_shader.m_translate;
}
else
{
RMLUI_VK_ASSERTMSG(p_data, "you can't reach this zone, it means something bad");
}
const uint32_t pDescriptorOffsets = static_cast<uint32_t>(p_casted_compiled_geometry->m_p_shader.offset);
VkDescriptorSet p_texture_descriptor_set = nullptr;
if (p_casted_compiled_geometry->m_p_texture)
{
p_texture_descriptor_set = p_casted_compiled_geometry->m_p_texture->m_p_vk_descriptor_set;
}
VkDescriptorSet p_sets[] = {p_current_descriptor_set, p_texture_descriptor_set};
int real_size_of_sets = 2;
if (p_casted_compiled_geometry->m_p_texture == nullptr)
real_size_of_sets = 1;
vkCmdBindDescriptorSets(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_p_pipeline_layout, 0, real_size_of_sets, p_sets, 1,
&pDescriptorOffsets);
if (m_is_use_stencil_pipeline)
{
vkCmdBindPipeline(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_p_pipeline_stencil_for_region_where_geometry_will_be_drawn);
}
else
{
if (p_casted_compiled_geometry->m_has_texture)
{
if (m_is_apply_to_regular_geometry_stencil)
{
vkCmdBindPipeline(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
m_p_pipeline_stencil_for_regular_geometry_that_applied_to_region_with_textures);
}
else
{
vkCmdBindPipeline(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_p_pipeline_with_textures);
}
}
else
{
if (m_is_apply_to_regular_geometry_stencil)
{
vkCmdBindPipeline(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
m_p_pipeline_stencil_for_regular_geometry_that_applied_to_region_without_textures);
}
else
{
vkCmdBindPipeline(m_p_current_command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_p_pipeline_without_textures);
}
}
}
vkCmdBindVertexBuffers(m_p_current_command_buffer, 0, 1, &p_casted_compiled_geometry->m_p_vertex.buffer,
&p_casted_compiled_geometry->m_p_vertex.offset);
vkCmdBindIndexBuffer(m_p_current_command_buffer, p_casted_compiled_geometry->m_p_index.buffer, p_casted_compiled_geometry->m_p_index.offset,
VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(m_p_current_command_buffer, p_casted_compiled_geometry->m_num_indices, 1, 0, 0, 0);
}
void RenderInterface_VK::ReleaseCompiledGeometry(Rml::CompiledGeometryHandle geometry)
{
RMLUI_ZoneScopedN("Vulkan - ReleaseCompiledGeometry");
geometry_handle_t* p_casted_geometry = reinterpret_cast<geometry_handle_t*>(geometry);
m_pending_for_deletion_geometries.push_back(p_casted_geometry);
}
void RenderInterface_VK::EnableScissorRegion(bool enable)
{
if (m_p_current_command_buffer == nullptr)
return;
if (m_is_transform_enabled)
{
m_is_apply_to_regular_geometry_stencil = true;
}
m_is_use_scissor_specified = enable;
if (m_is_use_scissor_specified == false)
{
m_is_apply_to_regular_geometry_stencil = false;
vkCmdSetScissor(m_p_current_command_buffer, 0, 1, &m_scissor_original);
}
}
void RenderInterface_VK::SetScissorRegion(int x, int y, int width, int height)
{
if (m_is_use_scissor_specified)
{
if (m_is_transform_enabled)
{
float left = static_cast<float>(x);
float right = static_cast<float>(x + width);
float top = static_cast<float>(y);
float bottom = static_cast<float>(y + height);
Rml::Vertex vertices[4];
vertices[0].position = {left, top};
vertices[1].position = {right, top};
vertices[2].position = {right, bottom};
vertices[3].position = {left, bottom};
int indices[6] = {0, 2, 1, 0, 3, 2};
m_is_use_stencil_pipeline = true;
#ifdef RMLUI_DEBUG
VkDebugUtilsLabelEXT info{};
info.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT;
info.color[0] = 1.0f;
info.color[1] = 1.0f;
info.color[2] = 0.0f;
info.color[3] = 1.0f;
info.pLabelName = "SetScissorRegion (generated region)";
vkCmdInsertDebugUtilsLabelEXT(m_p_current_command_buffer, &info);
#endif
VkClearDepthStencilValue info_clear_color{};
info_clear_color.depth = 1.0f;
info_clear_color.stencil = 0;
VkImageSubresourceRange info_range{};
info_range.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
info_range.baseMipLevel = 0;
info_range.baseArrayLayer = 0;
info_range.levelCount = 1;
info_range.layerCount = 1;
vkCmdClearDepthStencilImage(m_p_current_command_buffer, m_texture_depthstencil.m_p_vk_image,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, &info_clear_color, 1, &info_range);
RenderGeometry(vertices, 4, indices, 6, 0, Rml::Vector2f(0.0f, 0.0f));
m_is_use_stencil_pipeline = false;
m_is_apply_to_regular_geometry_stencil = true;
}
else
{
m_scissor.extent.width = width;
m_scissor.extent.height = height;
m_scissor.offset.x = static_cast<int32_t>(std::abs(x));
m_scissor.offset.y = static_cast<int32_t>(std::abs(y));
#ifdef RMLUI_DEBUG
VkDebugUtilsLabelEXT info{};
info.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT;
info.color[0] = 1.0f;
info.color[1] = 0.0f;
info.color[2] = 0.0f;
info.color[3] = 1.0f;
info.pLabelName = "SetScissorRegion (offset)";
vkCmdInsertDebugUtilsLabelEXT(m_p_current_command_buffer, &info);
#endif
vkCmdSetScissor(m_p_current_command_buffer, 0, 1, &m_scissor);
}
}
}
// Set to byte packing, or the compiler will expand our struct, which means it won't read correctly from file
#pragma pack(1)
struct TGAHeader {
char idLength;
char colourMapType;
char dataType;
short int colourMapOrigin;
short int colourMapLength;
char colourMapDepth;
short int xOrigin;
short int yOrigin;
short int width;
short int height;
char bitsPerPixel;
char imageDescriptor;
};
// Restore packing
#pragma pack()
bool RenderInterface_VK::LoadTexture(Rml::TextureHandle& texture_handle, Rml::Vector2i& texture_dimensions, const Rml::String& source)
{
Rml::FileInterface* file_interface = Rml::GetFileInterface();
Rml::FileHandle file_handle = file_interface->Open(source);
if (!file_handle)
{
return false;
}
file_interface->Seek(file_handle, 0, SEEK_END);
size_t buffer_size = file_interface->Tell(file_handle);
file_interface->Seek(file_handle, 0, SEEK_SET);
RMLUI_ASSERTMSG(buffer_size > sizeof(TGAHeader), "Texture file size is smaller than TGAHeader, file must be corrupt or otherwise invalid");
if (buffer_size <= sizeof(TGAHeader))
{
file_interface->Close(file_handle);
return false;
}
char* buffer = new char[buffer_size];
file_interface->Read(buffer, buffer_size, file_handle);
file_interface->Close(file_handle);
TGAHeader header;
memcpy(&header, buffer, sizeof(TGAHeader));
int color_mode = header.bitsPerPixel / 8;
int image_size = header.width * header.height * 4; // We always make 32bit textures
if (header.dataType != 2)
{
Rml::Log::Message(Rml::Log::LT_ERROR, "Only 24/32bit uncompressed TGAs are supported.");
return false;
}
// Ensure we have at least 3 colors
if (color_mode < 3)
{
Rml::Log::Message(Rml::Log::LT_ERROR, "Only 24 and 32bit textures are supported");
return false;
}
const char* image_src = buffer + sizeof(TGAHeader);
unsigned char* image_dest = new unsigned char[image_size];
// Targa is BGR, swap to RGB and flip Y axis
for (long y = 0; y < header.height; y++)
{
long read_index = y * header.width * color_mode;
long write_index = ((header.imageDescriptor & 32) != 0) ? read_index : (header.height - y - 1) * header.width * color_mode;
for (long x = 0; x < header.width; x++)
{
image_dest[write_index] = image_src[read_index + 2];
image_dest[write_index + 1] = image_src[read_index + 1];
image_dest[write_index + 2] = image_src[read_index];
if (color_mode == 4)
image_dest[write_index + 3] = image_src[read_index + 3];
else
image_dest[write_index + 3] = 255;
write_index += 4;
read_index += color_mode;
}
}
texture_dimensions.x = header.width;
texture_dimensions.y = header.height;
bool status = CreateTexture(texture_handle, image_dest, texture_dimensions, source);
delete[] image_dest;
delete[] buffer;
return status;
}
bool RenderInterface_VK::GenerateTexture(Rml::TextureHandle& texture_handle, const Rml::byte* source, const Rml::Vector2i& source_dimensions)
{
Rml::String source_name = "generated-texture";
return CreateTexture(texture_handle, source, source_dimensions, source_name);
}
/*
How vulkan works with textures efficiently?
You need to create buffer that has CPU memory accessibility it means it uses your RAM memory for storing data and it has only CPU visibility (RAM)
After you create buffer that has GPU memory accessibility it means it uses by your video hardware and it has only VRAM (Video RAM) visibility
So you copy data to CPU_buffer and after you copy that thing to GPU_buffer, but delete CPU_buffer
So it means you "uploaded" data to GPU
Again, you need to "write" data into CPU buffer after you need to copy that data from buffer to GPU buffer and after that buffer go to GPU.
RAW_POINTER_DATA_BYTES_LITERALLY->COPY_TO->CPU->COPY_TO->GPU->Releasing_CPU <= that's how works uploading textures in Vulkan if you want to have
efficient handling otherwise it is cpu_to_gpu visibility and it means you create only ONE buffer that is accessible for CPU and for GPU, but it
will cause the worst performance...
*/
bool RenderInterface_VK::CreateTexture(Rml::TextureHandle& texture_handle, const Rml::byte* source, const Rml::Vector2i& dimensions,
const Rml::String& name)
{
RMLUI_ZoneScopedN("Vulkan - GenerateTexture");
RMLUI_VK_ASSERTMSG(source, "you pushed not valid data for copying to buffer");
RMLUI_VK_ASSERTMSG(m_p_allocator, "you have to initialize Vma Allocator for this method");
(void)name;
int width = dimensions.x;
int height = dimensions.y;
RMLUI_VK_ASSERTMSG(width, "invalid width");
RMLUI_VK_ASSERTMSG(height, "invalid height");
VkDeviceSize image_size = width * height * 4;
VkFormat format = VkFormat::VK_FORMAT_R8G8B8A8_UNORM;
buffer_data_t cpu_buffer = CreateResource_StagingBuffer(image_size, VK_BUFFER_USAGE_TRANSFER_SRC_BIT);
void* data;
vmaMapMemory(m_p_allocator, cpu_buffer.m_p_vma_allocation, &data);
memcpy(data, source, static_cast<size_t>(image_size));
vmaUnmapMemory(m_p_allocator, cpu_buffer.m_p_vma_allocation);
VkExtent3D extent_image = {};
extent_image.width = static_cast<uint32_t>(width);
extent_image.height = static_cast<uint32_t>(height);
extent_image.depth = 1;
auto* p_texture = new texture_data_t{};
VkImageCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
info.pNext = nullptr;
info.imageType = VK_IMAGE_TYPE_2D;
info.format = format;
info.extent = extent_image;
info.mipLevels = 1;
info.arrayLayers = 1;
info.samples = VK_SAMPLE_COUNT_1_BIT;
info.tiling = VK_IMAGE_TILING_OPTIMAL;
info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
VmaAllocationCreateInfo info_allocation = {};
info_allocation.usage = VMA_MEMORY_USAGE_GPU_ONLY;
VkImage p_image = nullptr;
VmaAllocation p_allocation = nullptr;
VmaAllocationInfo info_stats = {};
VkResult status = vmaCreateImage(m_p_allocator, &info, &info_allocation, &p_image, &p_allocation, &info_stats);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "failed to vmaCreateImage");
#ifdef RMLUI_VK_DEBUG
Rml::Log::Message(Rml::Log::LT_DEBUG, "Created texture '%s' [%dx%d, %s]", name.c_str(), dimensions.x, dimensions.y,
FormatByteSize(info_stats.size).c_str());
#endif
p_texture->m_p_vk_image = p_image;
p_texture->m_p_vma_allocation = p_allocation;
#ifdef RMLUI_VK_DEBUG
vmaSetAllocationName(m_p_allocator, p_allocation, name.c_str());
#endif
/*
* So Vulkan works only through VkCommandBuffer, it is for remembering API commands what you want to call from GPU
* So on CPU side you need to create a scope that consists of two things
* vkBeginCommandBuffer
* ... <= here your commands what you want to place into your command buffer and send it to GPU through vkQueueSubmit function
* vkEndCommandBuffer
*
* So commands start to work ONLY when you called the vkQueueSubmit otherwise you just "place" commands into your command buffer but you
* didn't issue any thing in order to start the work on GPU side. ALWAYS remember that just sumbit means execute async mode, so you have to wait
* operations before they exeecute fully otherwise you will get some errors or write/read concurrent state and all other stuff, vulkan validation
* will notify you :) (in most cases)
*
* BUT you need always sync what you have done when you called your vkQueueSubmit function, so it is wait method, but generally you can create
* another queue and isolate all stuff tbh
*
* So understing these principles you understand how to work with API and your GPU
*
* There's nothing hard, but it makes all stuff on programmer side if you remember OpenGL and how it was easy to load texture upload it and create
* buffers and it In OpenGL all stuff is handled by driver and other things, not a programmer definitely
*
* What we do here? We need to change the layout of our image. it means where we want to use it. So in our case we want to see that this image
* will be in shaders Because the initial state of create object is VK_IMAGE_LAYOUT_UNDEFINED means you can't just pass that VkImage handle to
* your functions and wait that it comes to shaders for exmaple No it doesn't work like that you have to have the explicit states of your resource
* and where it goes
*
* In our case we want to see in our pixel shader so we need to change transfer into this flag VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, because we
* want to copy so it means some transfer thing, but after we say it goes to pixel after our copying operation
*/
m_upload_manager.UploadToGPU([p_image, extent_image, cpu_buffer](VkCommandBuffer p_cmd) {
VkImageSubresourceRange range = {};
range.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
range.baseMipLevel = 0;
range.baseArrayLayer = 0;
range.levelCount = 1;
range.layerCount = 1;
VkImageMemoryBarrier info_barrier = {};
info_barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
info_barrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
info_barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
info_barrier.image = p_image;
info_barrier.subresourceRange = range;
info_barrier.srcAccessMask = 0;
info_barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
vkCmdPipelineBarrier(p_cmd, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &info_barrier);
VkBufferImageCopy region = {};
region.bufferOffset = 0;
region.bufferRowLength = 0;
region.bufferImageHeight = 0;
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.mipLevel = 0;
region.imageSubresource.baseArrayLayer = 0;
region.imageSubresource.layerCount = 1;
region.imageExtent = extent_image;
vkCmdCopyBufferToImage(p_cmd, cpu_buffer.m_p_vk_buffer, p_image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
VkImageMemoryBarrier info_barrier_shader_read = {};
info_barrier_shader_read.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
info_barrier_shader_read.pNext = nullptr;
info_barrier_shader_read.image = p_image;
info_barrier_shader_read.subresourceRange = range;
info_barrier_shader_read.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
info_barrier_shader_read.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
info_barrier_shader_read.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
info_barrier_shader_read.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
vkCmdPipelineBarrier(p_cmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1,
&info_barrier_shader_read);
});
DestroyResource_StagingBuffer(cpu_buffer);
VkImageViewCreateInfo info_image_view = {};
info_image_view.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
info_image_view.pNext = nullptr;
info_image_view.image = p_texture->m_p_vk_image;
info_image_view.viewType = VK_IMAGE_VIEW_TYPE_2D;
info_image_view.format = format;
info_image_view.subresourceRange.baseMipLevel = 0;
info_image_view.subresourceRange.levelCount = 1;
info_image_view.subresourceRange.baseArrayLayer = 0;
info_image_view.subresourceRange.layerCount = 1;
info_image_view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
VkImageView p_image_view = nullptr;
status = vkCreateImageView(m_p_device, &info_image_view, nullptr, &p_image_view);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "failed to vkCreateImageView");
p_texture->m_p_vk_image_view = p_image_view;
p_texture->m_p_vk_sampler = m_p_sampler_linear;
texture_handle = reinterpret_cast<Rml::TextureHandle>(p_texture);
return true;
}
void RenderInterface_VK::ReleaseTexture(Rml::TextureHandle texture_handle)
{
texture_data_t* p_texture = reinterpret_cast<texture_data_t*>(texture_handle);
if (p_texture)
{
m_pending_for_deletion_textures_by_frames[m_semaphore_index_previous].push_back(p_texture);
}
}
void RenderInterface_VK::SetTransform(const Rml::Matrix4f* transform)
{
m_is_transform_enabled = !!(transform);
m_user_data_for_vertex_shader.m_transform = m_projection * (transform ? *transform : Rml::Matrix4f::Identity());
}
void RenderInterface_VK::BeginFrame()
{
Wait();
Update_PendingForDeletion_Textures_By_Frames();
Update_PendingForDeletion_Geometries();
m_command_buffer_ring.OnBeginFrame();
m_p_current_command_buffer = m_command_buffer_ring.GetCommandBufferForActiveFrame(CommandBufferName::Primary);
VkCommandBufferBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
info.pInheritanceInfo = nullptr;
info.pNext = nullptr;
info.flags = VkCommandBufferUsageFlagBits::VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
auto status = vkBeginCommandBuffer(m_p_current_command_buffer, &info);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "failed to vkBeginCommandBuffer");
VkClearValue for_filling_back_buffer_color;
VkClearValue for_stencil_depth;
for_stencil_depth.depthStencil = {1.0f, 0};
for_filling_back_buffer_color.color = {{0.0f, 0.0f, 0.0f, 1.0f}};
const VkClearValue p_color_rt[] = {for_filling_back_buffer_color, for_stencil_depth};
VkRenderPassBeginInfo info_pass = {};
info_pass.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info_pass.pNext = nullptr;
info_pass.renderPass = m_p_render_pass;
info_pass.framebuffer = m_swapchain_frame_buffers[m_image_index];
info_pass.pClearValues = p_color_rt;
info_pass.clearValueCount = 2;
info_pass.renderArea.offset.x = 0;
info_pass.renderArea.offset.y = 0;
info_pass.renderArea.extent.width = m_width;
info_pass.renderArea.extent.height = m_height;
vkCmdBeginRenderPass(m_p_current_command_buffer, &info_pass, VkSubpassContents::VK_SUBPASS_CONTENTS_INLINE);
vkCmdSetViewport(m_p_current_command_buffer, 0, 1, &m_viewport);
m_is_apply_to_regular_geometry_stencil = false;
}
void RenderInterface_VK::EndFrame()
{
if (m_p_current_command_buffer == nullptr)
return;
vkCmdEndRenderPass(m_p_current_command_buffer);
auto status = vkEndCommandBuffer(m_p_current_command_buffer);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "failed to vkEndCommandBuffer");
Submit();
Present();
m_p_current_command_buffer = nullptr;
}
void RenderInterface_VK::SetViewport(int width, int height)
{
auto status = vkDeviceWaitIdle(m_p_device);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "failed to vkDeviceWaitIdle");
if (width > 0 && height > 0)
{
m_width = width;
m_height = height;
}
if (m_p_swapchain)
{
Destroy_Swapchain();
DestroyResourcesDependentOnSize();
m_p_swapchain = {};
}
VkExtent2D window_extent = GetValidSurfaceExtent();
if (window_extent.width == 0 || window_extent.height == 0)
return;
Initialize_Swapchain(window_extent);
CreateResourcesDependentOnSize();
}
bool RenderInterface_VK::IsSwapchainValid()
{
return m_p_swapchain != nullptr;
}
void RenderInterface_VK::RecreateSwapchain()
{
SetViewport(m_width, m_height);
}
bool RenderInterface_VK::Initialize(Rml::Vector<const char*> required_extensions, CreateSurfaceCallback create_surface_callback)
{
RMLUI_ZoneScopedN("Vulkan - Initialize");
int glad_result = 0;
glad_result = gladLoaderLoadVulkan(VK_NULL_HANDLE, VK_NULL_HANDLE, VK_NULL_HANDLE);
RMLUI_VK_ASSERTMSG(glad_result != 0, "Vulkan loader failed - Global functions");
Initialize_Instance(std::move(required_extensions));
VkPhysicalDeviceProperties physical_device_properties = {};
Initialize_PhysicalDevice(physical_device_properties);
glad_result = gladLoaderLoadVulkan(m_p_instance, m_p_physical_device, VK_NULL_HANDLE);
RMLUI_VK_ASSERTMSG(glad_result != 0, "Vulkan loader failed - Instance functions");
Initialize_Surface(create_surface_callback);
Initialize_QueueIndecies();
Initialize_Device();
glad_result = gladLoaderLoadVulkan(m_p_instance, m_p_physical_device, m_p_device);
RMLUI_VK_ASSERTMSG(glad_result != 0, "Vulkan loader failed - Device functions");
Initialize_Queues();
Initialize_SyncPrimitives();
Initialize_Allocator();
Initialize_Resources(physical_device_properties);
return true;
}
void RenderInterface_VK::Shutdown()
{
RMLUI_ZoneScopedN("Vulkan - Shutdown");
auto status = vkDeviceWaitIdle(m_p_device);
RMLUI_VK_ASSERTMSG(status == VkResult::VK_SUCCESS, "you must have a valid status here");
DestroyResourcesDependentOnSize();
Destroy_Resources();
Destroy_Allocator();
Destroy_SyncPrimitives();
Destroy_Swapchain();
Destroy_Surface();
Destroy_Device();
Destroy_ReportDebugCallback();
Destroy_Instance();
gladLoaderUnloadVulkan();
}
void RenderInterface_VK::Initialize_Instance(Rml::Vector<const char*> required_extensions) noexcept
{
uint32_t required_version = GetRequiredVersionAndValidateMachine();
VkApplicationInfo info = {};
info.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
info.pNext = nullptr;
info.pApplicationName = "RmlUi Shell";
info.applicationVersion = 50;
info.pEngineName = "RmlUi";
info.apiVersion = required_version;
Rml::Vector<const char*> instance_layer_names;
Rml::Vector<const char*> instance_extension_names = std::move(required_extensions);
CreatePropertiesFor_Instance(instance_layer_names, instance_extension_names);
VkInstanceCreateInfo info_instance = {};
info_instance.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
info_instance.pNext = &debug_validation_features_ext;
info_instance.flags = 0;
info_instance.pApplicationInfo = &info;
info_instance.enabledExtensionCount = static_cast<uint32_t>(instance_extension_names.size());
info_instance.ppEnabledExtensionNames = instance_extension_names.data();
info_instance.enabledLayerCount = static_cast<uint32_t>(instance_layer_names.size());
info_instance.ppEnabledLayerNames = instance_layer_names.data();
VkResult status = vkCreateInstance(&info_instance, nullptr, &m_p_instance);
RMLUI_VK_ASSERTMSG(status == VK_SUCCESS, "failed to vkCreateInstance");
CreateReportDebugCallback();
}
void RenderInterface_VK::Initialize_Device() noexcept
{
ExtensionPropertiesList device_extension_properties;
CreatePropertiesFor_Device(device_extension_properties);
Rml::Vector<const char*> device_extension_names;
AddExtensionToDevice(device_extension_names, device_extension_properties, VK_KHR_SWAPCHAIN_EXTENSION_NAME);
AddExtensionToDevice(device_extension_names, device_extension_properties, VK_EXT_SCALAR_BLOCK_LAYOUT_EXTENSION_NAME);
#ifdef RMLUI_DEBUG
AddExtensionToDevice(device_extension_names, device_extension_properties, VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
#endif
float queue_priorities[1] = {0.0f};
VkDeviceQueueCreateInfo info_queue[2] = {};
info_queue[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
info_queue[0].pNext = nullptr;
info_queue[0].queueCount = 1;
info_queue[0].pQueuePriorities = queue_priorities;
info_queue[0].queueFamilyIndex = m_queue_index_graphics;
info_queue[1].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
info_queue[1].pNext = nullptr;
info_queue[1].queueCount = 1;
info_queue[1].pQueuePriorities = queue_priorities;
info_queue[1].queueFamilyIndex = m_queue_index_compute;
VkPhysicalDeviceFeatures features_physical_device = {};
features_physical_device.fillModeNonSolid = true;
features_physical_device.pipelineStatisticsQuery = true;
features_physical_device.fragmentStoresAndAtomics = true;
features_physical_device.vertexPipelineStoresAndAtomics = true;
features_physical_device.shaderImageGatherExtended = true;
features_physical_device.wideLines = true;
VkPhysicalDeviceShaderSubgroupExtendedTypesFeaturesKHR shader_subgroup_extended_type = {};
shader_subgroup_extended_type.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_EXTENDED_TYPES_FEATURES_KHR;
shader_subgroup_extended_type.pNext = nullptr;
shader_subgroup_extended_type.shaderSubgroupExtendedTypes = VK_TRUE;
VkPhysicalDeviceFeatures2 features_physical_device2 = {};
features_physical_device2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
features_physical_device2.features = features_physical_device;
features_physical_device2.pNext = &shader_subgroup_extended_type;
VkDeviceCreateInfo info_device = {};
info_device.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
info_device.pNext = &features_physical_device2;
info_device.queueCreateInfoCount = m_queue_index_compute != m_queue_index_graphics ? 2 : 1;
info_device.pQueueCreateInfos = info_queue;
info_device.enabledExtensionCount = static_cast<uint32_t>(device_extension_names.size());
info_device.ppEnabledExtensionNames = info_device.enabledExtensionCount ? device_extension_names.data() : nullptr;
info_device.pEnabledFeatures = nullptr;
VkResult status = vkCreateDevice(m_p_physical_device, &info_device, nullptr, &m_p_device);
RMLUI_VK_ASSERTMSG(status == VK_SUCCESS, "failed to vkCreateDevice");
}
void RenderInterface_VK::Initialize_PhysicalDevice(VkPhysicalDeviceProperties& out_physical_device_properties) noexcept
{
PhysicalDeviceWrapperList physical_devices;
CollectPhysicalDevices(physical_devices);
const PhysicalDeviceWrapper* selected_physical_device =
ChoosePhysicalDevice(physical_devices, VkPhysicalDeviceType::VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU);
if (!selected_physical_device)
{
Rml::Log::Message(Rml::Log::LT_WARNING, "Failed to pick the discrete gpu, now trying to pick integrated GPU");
selected_physical_device = ChoosePhysicalDevice(physical_devices, VkPhysicalDeviceType::VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU);
if (!selected_physical_device)
{
Rml::Log::Message(Rml::Log::LT_WARNING, "Failed to pick the integrated gpu, now trying to pick the CPU");
selected_physical_device = ChoosePhysicalDevice(physical_devices, VkPhysicalDeviceType::VK_PHYSICAL_DEVICE_TYPE_CPU);
}
}
RMLUI_VK_ASSERTMSG(selected_physical_device, "there's no suitable physical device for rendering, abort this application");
m_p_physical_device = selected_physical_device->m_p_physical_device;
vkGetPhysicalDeviceProperties(m_p_physical_device, &out_physical_device_properties);
#ifdef RMLUI_VK_DEBUG
const auto& properties = selected_physical_device->m_physical_device_properties;
Rml::Log::Message(Rml::Log::LT_DEBUG, "Picked physical device: %s", properties.deviceName);
#endif
}
void RenderInterface_VK::Initialize_Swapchain(VkExtent2D window_extent) noexcept
{
m_swapchain_format = ChooseSwapchainFormat();
VkSwapchainCreateInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
info.pNext = nullptr;
info.surface = m_p_surface;
info.imageFormat = m_swapchain_format.format;
info.minImageCount = Choose_SwapchainImageCount();
info.imageColorSpace = m_swapchain_format.colorSpace;
info.imageExtent = window_extent;
info.preTransform = CreatePretransformSwapchain();
info.compositeAlpha = ChooseSwapchainCompositeAlpha();
info.imageArrayLayers = 1;
info.presentMode = GetPresentMode();
info.oldSwapchain = nullptr;
info.clipped = true;
info.imageUsage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;