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gfx.cpp
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/****************************************************************************
MIT License
Copyright (c) 2024 Guillaume Boissé
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 "gfx.h"
#include <map> // std::map
#include <deque> // std::deque
#include <memory> // std::unique_ptr
#include <direct.h> // _mkdir()
#include <aclapi.h> // SetEntriesInAcl()
#include <accctrl.h> // EXPLICIT_ACCESS
#include <dxcapi.h> // shader compiler
#include <d3d12shader.h> // shader reflection
#include <dxgi1_6.h> // IDXGIFactory6 + IDXGIOutput6
#include <filesystem>
#ifdef __clang__
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wnested-anon-types"
# pragma clang diagnostic ignored "-Wmissing-field-initializers"
# pragma clang diagnostic ignored "-Wmisleading-indentation"
# pragma clang diagnostic ignored "-Wswitch"
# pragma clang diagnostic ignored "-Wunused-parameter"
# pragma clang diagnostic ignored "-Wtautological-undefined-compare"
# pragma clang diagnostic ignored "-Wunused-but-set-variable"
# pragma clang diagnostic ignored "-Wunused-function"
#elif defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wnested-anon-types"
# pragma GCC diagnostic ignored "-Wmissing-field-initializers"
# pragma GCC diagnostic ignored "-Wmisleading-indentation"
# pragma GCC diagnostic ignored "-Wswitch"
# pragma GCC diagnostic ignored "-Wunused-parameter"
# pragma GCC diagnostic ignored "-Wtautological-undefined-compare"
# pragma GCC diagnostic ignored "-Wunused-but-set-variable"
# pragma GCC diagnostic ignored "-Wunused-function"
#elif defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable : 4100) // unreferenced formal parameter
# pragma warning(disable : 4127) // conditional expression is constant
# pragma warning(disable : 4189) // local variable is initialized but not referenced
# pragma warning(disable : 4211) // nonstandard extension used: redefined extern to static
#endif
#include <D3D12MemAlloc.h> // D3D12 memory allocator
#include <WinPixEventRuntime/pix3.h>
#ifdef __clang__
# pragma clang diagnostic pop
#elif defined(__GNUC__)
# pragma GCC diagnostic pop
#elif defined(_MSC_VER)
# pragma warning(pop)
#endif
extern "C"
{
__declspec(dllexport) extern const UINT D3D12SDKVersion = GFX_AGILITY_VERSION;
__declspec(dllexport) extern char8_t const *D3D12SDKPath = u8".\\";
__declspec(dllexport) UINT GetD3D12SDKVersion()
{
return D3D12SDKVersion;
}
}
class GfxInternal
{
GFX_NON_COPYABLE(GfxInternal);
HWND window_ = {};
uint32_t window_width_ = 0;
uint32_t window_height_ = 0;
uint32_t max_frames_in_flight_ = 0;
ID3D12Device *device_ = nullptr;
IDXGIAdapter1 *adapter_ = nullptr;
ID3D12Device5 *dxr_device_ = nullptr;
ID3D12Device2 *mesh_device_ = nullptr;
ID3D12CommandQueue *command_queue_ = nullptr;
ID3D12GraphicsCommandList *command_list_ = nullptr;
ID3D12GraphicsCommandList4 *dxr_command_list_ = nullptr;
ID3D12GraphicsCommandList6 *mesh_command_list_ = nullptr;
ID3D12CommandAllocator **command_allocators_ = nullptr;
std::vector<IAmdExtD3DDevice1 *> amd_ext_devices_;
HANDLE fence_event_ = {};
uint32_t fence_index_ = 0;
ID3D12Fence **fences_ = nullptr;
uint64_t *fence_values_ = nullptr;
bool debug_shaders_ = false;
bool cache_shaders_ = false;
bool experimental_shaders_ = false;
IDxcUtils *dxc_utils_ = nullptr;
IDxcCompiler3 *dxc_compiler_ = nullptr;
IDxcIncludeHandler *dxc_include_handler_ = nullptr;
IDXGISwapChain3 *swap_chain_ = nullptr;
D3D12MA::Allocator *mem_allocator_ = nullptr;
ID3D12CommandSignature *dispatch_signature_ = nullptr;
ID3D12CommandSignature *multi_draw_signature_ = nullptr;
ID3D12CommandSignature *multi_draw_indexed_signature_ = nullptr;
ID3D12CommandSignature *dispatch_rays_signature_ = nullptr;
ID3D12CommandSignature *draw_mesh_signature_ = nullptr;
std::vector<D3D12_RESOURCE_BARRIER> resource_barriers_;
ID3D12Resource **back_buffers_ = nullptr;
D3D12MA::Allocation **back_buffer_allocations_ = nullptr;
DXGI_FORMAT back_buffer_format_ = DXGI_FORMAT_R8G8B8A8_UNORM;
DXGI_COLOR_SPACE_TYPE color_space_ = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709;
uint32_t *back_buffer_rtvs_ = nullptr;
bool is_interop_ = false;
GfxKernel bound_kernel_ = {};
GfxBuffer draw_id_buffer_ = {};
uint64_t descriptor_heap_id_ = 0;
GfxBuffer bound_index_buffer_ = {};
GfxBuffer bound_vertex_buffer_ = {};
GfxBuffer texture_upload_buffer_ = {};
GfxBuffer installed_index_buffer_ = {};
GfxBuffer installed_vertex_buffer_ = {};
bool force_install_index_buffer_ = false;
bool force_install_vertex_buffer_ = false;
bool force_install_draw_id_buffer_ = false;
GfxBuffer raytracing_scratch_buffer_ = {};
GfxBuffer *constant_buffer_pool_ = nullptr;
uint64_t *constant_buffer_pool_cursors_ = nullptr;
std::vector<GfxRaytracingPrimitive> active_raytracing_primitives_;
struct RenderTarget
{
GfxTexture texture_ = {};
uint32_t mip_level_ = 0;
uint32_t slice_ = 0;
};
RenderTarget bound_color_targets_[kGfxConstant_MaxRenderTarget] = {};
RenderTarget bound_depth_stencil_target_ = {};
struct Viewport
{
inline Viewport &operator =(D3D12_VIEWPORT const &other)
{
x_ = other.TopLeftX;
y_ = other.TopLeftY;
width_ = other.Width;
height_ = other.Height;
return *this;
}
inline bool operator !=(D3D12_VIEWPORT const &other) const
{
return (x_ != other.TopLeftX || y_ != other.TopLeftY || width_ != other.Width || height_ != other.Height);
}
inline void invalidate()
{
width_ = NAN;
height_ = NAN;
}
float x_ = 0.0f;
float y_ = 0.0f;
float width_ = 0.0f;
float height_ = 0.0f;
};
Viewport viewport_;
Viewport bound_viewport_;
struct ScissorRect
{
inline ScissorRect &operator =(D3D12_RECT const &other)
{
x_ = (int32_t)other.left;
y_ = (int32_t)other.top;
width_ = (int32_t)(other.right - other.left);
height_ = (int32_t)(other.bottom - other.top);
return *this;
}
inline bool operator !=(D3D12_RECT const &other) const
{
return (x_ != other.left || y_ != other.top || x_ + width_ != other.right || y_ + height_ != other.bottom);
}
inline void invalidate()
{
width_ = -1;
height_ = -1;
}
int32_t x_ = 0;
int32_t y_ = 0;
int32_t width_ = 0;
int32_t height_ = 0;
};
ScissorRect scissor_rect_;
ScissorRect bound_scissor_rect_;
GfxKernel clear_buffer_kernel_ = {};
GfxProgram clear_buffer_program_ = {};
bool issued_clear_buffer_warning_ = false;
GfxKernel copy_to_backbuffer_kernel_ = {};
GfxProgram copy_to_backbuffer_program_ = {};
struct MipKernels
{
GfxProgram mip_program_ = {};
GfxKernel mip_kernel_ = {};
};
std::map<uint32_t, MipKernels> mip_kernels_;
struct ScanKernels
{
GfxProgram scan_program_ = {};
GfxKernel reduce_kernel_ = {};
GfxKernel scan_add_kernel_ = {};
GfxKernel scan_kernel_ = {};
GfxKernel args_kernel_ = {};
};
std::map<uint32_t, ScanKernels> scan_kernels_;
struct SortKernels
{
GfxProgram sort_program_ = {};
GfxKernel histogram_kernel_ = {};
GfxKernel scatter_kernel_ = {};
GfxKernel args_kernel_ = {};
};
GfxBuffer sort_scratch_buffer_;
std::map<uint32_t, SortKernels> sort_kernels_;
struct String
{
char *data_;
GFX_NON_COPYABLE(String);
inline String() : data_(nullptr) {}
inline String(char const *data) : data_(nullptr) { *this = data; }
inline String(String &&other) : data_(other.data_) { other.data_ = nullptr; }
inline String &operator =(String &&other) { if(this != &other) { gfxFree(data_); data_ = other.data_; other.data_ = nullptr; } return *this; }
inline String &operator =(char const *data) { gfxFree(data_); if(!data) data_ = nullptr; else
{ data_ = (char *)gfxMalloc(strlen(data) + 1); strcpy(data_, data); }
return *this; }
inline operator char const *() const { return data_ ? data_ : ""; }
inline size_t size() const { return data_ ? strlen(data_) : 0; }
inline char const *c_str() const { return data_ ? data_ : ""; }
inline operator bool() const { return data_ != nullptr; }
inline ~String() { gfxFree(data_); }
};
struct Garbage
{
GFX_NON_COPYABLE(Garbage);
typedef void (*Collector)(Garbage const &garbage);
inline Garbage() : deletion_counter_(0), garbage_collector_(nullptr) { memset(garbage_, 0, sizeof(garbage_)); }
inline Garbage(Garbage &&other) : deletion_counter_(other.deletion_counter_), garbage_collector_(other.garbage_collector_) { memcpy(garbage_, other.garbage_, sizeof(garbage_)); other.garbage_collector_ = nullptr; }
inline Garbage &operator =(Garbage &&other) { if(this != &other) { GFX_ASSERT(!garbage_collector_); if(garbage_collector_) garbage_collector_(*this); memcpy(garbage_, other.garbage_, sizeof(garbage_)); deletion_counter_ = other.deletion_counter_; garbage_collector_ = other.garbage_collector_; other.garbage_collector_ = nullptr; } return *this; }
inline ~Garbage() { GFX_ASSERT(!!deletion_counter_ || !garbage_collector_); if(garbage_collector_) garbage_collector_(*this); }
template<typename TYPE>
static void ResourceCollector(Garbage const &garbage)
{
TYPE *resource = (TYPE *)garbage.garbage_[0];
GFX_ASSERT(resource != nullptr); if(resource == nullptr) return;
resource->Release(); // release resource
}
static void DescriptorCollector(Garbage const &garbage)
{
uint32_t const descriptor_slot = (uint32_t)garbage.garbage_[0];
GfxFreelist *descriptor_freelist = (GfxFreelist *)garbage.garbage_[1];
GFX_ASSERT(descriptor_freelist != nullptr); if(descriptor_freelist == nullptr) return;
descriptor_freelist->free_slot(descriptor_slot); // release descriptor slot
}
uintptr_t garbage_[2];
uint32_t deletion_counter_;
Collector garbage_collector_;
};
std::deque<Garbage> garbage_collection_;
struct DescriptorHeap
{
inline D3D12_CPU_DESCRIPTOR_HANDLE getCPUHandle(uint32_t descriptor_slot) const
{
GFX_ASSERT(descriptor_slot < (descriptor_heap_ != nullptr ? descriptor_heap_->GetDesc().NumDescriptors : 0));
D3D12_CPU_DESCRIPTOR_HANDLE cpu_handle = descriptor_heap_->GetCPUDescriptorHandleForHeapStart();
cpu_handle.ptr += descriptor_slot * descriptor_handle_size_;
return cpu_handle;
}
inline D3D12_GPU_DESCRIPTOR_HANDLE getGPUHandle(uint32_t descriptor_slot) const
{
GFX_ASSERT(descriptor_slot < (descriptor_heap_ != nullptr ? descriptor_heap_->GetDesc().NumDescriptors : 0));
D3D12_GPU_DESCRIPTOR_HANDLE gpu_handle = descriptor_heap_->GetGPUDescriptorHandleForHeapStart();
gpu_handle.ptr += descriptor_slot * descriptor_handle_size_;
return gpu_handle;
}
uint32_t descriptor_handle_size_ = 0;
ID3D12DescriptorHeap *descriptor_heap_ = nullptr;
};
DescriptorHeap descriptors_;
DescriptorHeap dsv_descriptors_;
DescriptorHeap rtv_descriptors_;
DescriptorHeap sampler_descriptors_;
GfxFreelist freelist_descriptors_;
GfxFreelist freelist_dsv_descriptors_;
GfxFreelist freelist_rtv_descriptors_;
GfxFreelist freelist_sampler_descriptors_;
struct DrawState
{
struct Data
{
DXGI_FORMAT color_formats_[kGfxConstant_MaxRenderTarget] = {};
DXGI_FORMAT depth_stencil_format_ = {};
D3D12_PRIMITIVE_TOPOLOGY_TYPE primitive_topology_type_ = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
struct
{
inline operator bool() const
{
return (src_blend_ != 0 && dst_blend_ != 0 && blend_op_ != 0 && src_blend_alpha_ != 0 && dst_blend_alpha_ != 0 && blend_op_alpha_ != 0);
}
D3D12_BLEND src_blend_ = {};
D3D12_BLEND dst_blend_ = {};
D3D12_BLEND_OP blend_op_ = {};
D3D12_BLEND src_blend_alpha_ = {};
D3D12_BLEND dst_blend_alpha_ = {};
D3D12_BLEND_OP blend_op_alpha_ = {};
} blend_state_;
struct
{
D3D12_COMPARISON_FUNC depth_func_ = D3D12_COMPARISON_FUNC_LESS;
D3D12_DEPTH_WRITE_MASK depth_write_mask_ = D3D12_DEPTH_WRITE_MASK_ALL;
} depth_stencil_state_;
struct
{
D3D12_CULL_MODE cull_mode_ = D3D12_CULL_MODE_BACK;
D3D12_FILL_MODE fill_mode_ = D3D12_FILL_MODE_SOLID;
} raster_state_;
};
DrawState() : reference_count_(0) {}
DrawState(DrawState &&other) : draw_state_(other.draw_state_), reference_count_(other.reference_count_) { other.reference_count_ = 0; }
~DrawState() { GFX_ASSERT(reference_count_ == 0); }
inline DrawState &operator =(DrawState &&other)
{
if(this != &other)
{
GFX_ASSERT(reference_count_ == 0);
draw_state_ = other.draw_state_;
reference_count_ = other.reference_count_;
other.reference_count_ = 0;
}
return *this;
}
Data draw_state_;
uint32_t reference_count_;
};
static GfxArray<DrawState> draw_states_;
static GfxHandles draw_state_handles_;
struct Object
{
enum Flag
{
kFlag_Named = 1 << 0
};
uint32_t flags_ = 0;
};
struct Buffer : public Object
{
inline bool isInterop() const { return (allocation_ == nullptr ? true : false); }
void *data_ = nullptr;
uint64_t data_offset_ = 0;
ID3D12Resource *resource_ = nullptr;
uint32_t *reference_count_ = nullptr;
D3D12MA::Allocation *allocation_ = nullptr;
D3D12_RESOURCE_STATES *resource_state_ = nullptr;
D3D12_RESOURCE_STATES initial_resource_state_ = D3D12_RESOURCE_STATE_COMMON;
};
GfxArray<Buffer> buffers_;
GfxHandles buffer_handles_;
struct Texture : public Object
{
enum Flag
{
kFlag_AutoResize = 1 << 0
};
inline bool isInterop() const { return (allocation_ == nullptr ? true : false); }
uint32_t flags_ = 0;
float clear_value_[4] = {};
ID3D12Resource *resource_ = nullptr;
D3D12MA::Allocation *allocation_ = nullptr;
std::vector<uint32_t> dsv_descriptor_slots_[D3D12_REQ_MIP_LEVELS];
std::vector<uint32_t> rtv_descriptor_slots_[D3D12_REQ_MIP_LEVELS];
D3D12_RESOURCE_STATES resource_state_ = D3D12_RESOURCE_STATE_COMMON;
D3D12_RESOURCE_STATES initial_resource_state_ = D3D12_RESOURCE_STATE_COMMON;
};
GfxArray<Texture> textures_;
GfxHandles texture_handles_;
struct SamplerState
{
D3D12_SAMPLER_DESC sampler_desc_ = {};
uint32_t descriptor_slot_ = 0xFFFFFFFFu;
};
GfxArray<SamplerState> sampler_states_;
GfxHandles sampler_state_handles_;
struct AccelerationStructure
{
bool needs_update_ = false;
bool needs_rebuild_ = false;
GfxBuffer bvh_buffer_ = {};
uint64_t bvh_data_size_ = 0;
std::vector<GfxRaytracingPrimitive> raytracing_primitives_;
};
GfxArray<AccelerationStructure> acceleration_structures_;
GfxHandles acceleration_structure_handles_;
struct RaytracingPrimitive
{
uint32_t index_ = 0;
float transform_[16] = {};
uint32_t instance_id_ = 0;
uint8_t instance_mask_ = 0xFFu;
uint32_t instance_contribution_to_hit_group_index_ = 0;
enum
{
kType_Triangles = 0,
kType_Instance,
kType_Procedural,
kType_Count
}
type_;
struct
{
uint32_t build_flags_ = 0;
GfxBuffer bvh_buffer_ = {};
uint64_t bvh_data_size_ = 0;
uint32_t index_stride_ = 0;
GfxBuffer index_buffer_ = {};
uint32_t vertex_stride_ = 0;
GfxBuffer vertex_buffer_ = {};
GfxAccelerationStructure acceleration_structure_ = {};
}
triangles_;
struct
{
GfxRaytracingPrimitive parent_ = {};
}
instance_;
struct
{
uint32_t build_flags_ = 0;
GfxBuffer bvh_buffer_ = {};
uint64_t bvh_data_size_ = 0;
uint32_t procedural_stride_ = 0;
GfxBuffer procedural_buffer_ = {};
GfxAccelerationStructure acceleration_structure_ = {};
}
procedural_;
};
GfxArray<RaytracingPrimitive> raytracing_primitives_;
GfxHandles raytracing_primitive_handles_;
struct Program
{
struct Parameter
{
enum Type
{
kType_Buffer = 0,
kType_Image,
kType_SamplerState,
kType_AccelerationStructure,
kType_Constants,
kType_Count
};
String name_;
uint32_t id_ = 0;
Type type_ = kType_Count;
union
{
struct { GfxBuffer *buffers_; uint32_t buffer_count; } buffer_;
struct { GfxTexture *textures_; uint32_t *mip_levels_; uint32_t texture_count; } image_;
GfxSamplerState sampler_state_;
struct { GfxAccelerationStructure bvh_; GfxBuffer bvh_buffer_; } acceleration_structure_;
void *constants_;
}
data_ = {};
uint32_t data_size_ = 0;
void set(GfxBuffer const *buffers, uint32_t buffer_count)
{
GFX_ASSERT(buffers != nullptr || buffer_count == 0);
if(type_ == kType_Buffer && data_.buffer_.buffer_count == buffer_count)
for(uint32_t i = 0; i < buffer_count; ++i) { if(buffers[i].handle != data_.buffer_.buffers_[i].handle) { ++id_; break; } }
else
{
unset();
type_ = kType_Buffer;
data_.buffer_.buffer_count = buffer_count;
data_size_ = buffer_count * sizeof(GfxBuffer);
data_.buffer_.buffers_ = (GfxBuffer *)(buffer_count > 0 ? gfxMalloc(buffer_count * sizeof(GfxBuffer)) : nullptr);
}
for(uint32_t i = 0; i < buffer_count; ++i)
data_.buffer_.buffers_[i] = buffers[i];
}
void set(GfxTexture const *textures, uint32_t const *mip_levels, uint32_t texture_count)
{
GFX_ASSERT(textures != nullptr || texture_count == 0);
if(type_ == kType_Image && data_.image_.texture_count == texture_count)
for(uint32_t i = 0; i < texture_count; ++i) { if(textures[i].handle != data_.image_.textures_[i].handle ||
(data_.image_.mip_levels_ != nullptr ? data_.image_.mip_levels_[i] : 0) != (mip_levels != nullptr ? mip_levels[i] : 0)) { ++id_; break; } }
else
{
unset();
type_ = kType_Image;
data_.image_.texture_count = texture_count;
data_size_ = texture_count * sizeof(GfxTexture);
data_.image_.textures_ = (GfxTexture *)(texture_count > 0 ? gfxMalloc(texture_count * sizeof(GfxTexture)) : nullptr);
data_.image_.mip_levels_ = (uint32_t *)(texture_count > 0 && mip_levels != nullptr ? gfxMalloc(texture_count * sizeof(uint32_t)) : nullptr);
}
for(uint32_t i = 0; i < texture_count; ++i)
{
data_.image_.textures_[i] = textures[i];
if(mip_levels != nullptr)
data_.image_.mip_levels_[i] = mip_levels[i];
}
}
void set(GfxSamplerState const &sampler_state)
{
if(type_ == kType_SamplerState)
id_ += (sampler_state.handle != data_.sampler_state_.handle);
else
{
unset();
type_ = kType_SamplerState;
data_size_ = sizeof(sampler_state);
}
data_.sampler_state_ = sampler_state;
}
void set(GfxAccelerationStructure const &acceleration_structure)
{
if(type_ == kType_AccelerationStructure)
id_ += (acceleration_structure.handle != data_.acceleration_structure_.bvh_.handle);
else
{
unset();
type_ = kType_AccelerationStructure;
data_size_ = sizeof(acceleration_structure);
}
data_.acceleration_structure_.bvh_ = acceleration_structure;
}
void set(void const *data, uint32_t data_size)
{
if(type_ == kType_Constants && data_size_ == data_size)
id_ += (memcmp(data, data_.constants_, data_size) != 0);
else
{
unset();
type_ = kType_Constants;
data_.constants_ = (data_size > 0 ? gfxMalloc(data_size) : nullptr);
}
memcpy(data_.constants_, data, data_size);
data_size_ = data_size;
}
void unset()
{
switch(type_)
{
case kType_Image:
gfxFree(data_.image_.textures_);
gfxFree(data_.image_.mip_levels_);
break;
case kType_Constants:
gfxFree(data_.constants_);
break;
default:
break;
}
memset(&data_, 0, sizeof(data_));
type_ = kType_Count;
data_size_ = 0;
++id_;
}
char const *getTypeName() const
{
switch(type_)
{
case kType_Buffer:
return "Buffer";
case kType_Image:
return "Texture";
case kType_SamplerState:
return "Sampler state";
case kType_AccelerationStructure:
return "Acceleration structure";
case kType_Constants:
return "Constants";
default:
break; // undefined type
}
return "undefined";
}
};
typedef std::map<uint64_t, Parameter> Parameters;
Parameter &insertParameter(char const *parameter_name)
{
uint64_t const parameter_id = Hash(parameter_name);
Parameters::iterator const it = parameters_.find(parameter_id);
GFX_ASSERT(parameter_name != nullptr && *parameter_name != '\0');
if(it == parameters_.end())
{
Parameter ¶meter = parameters_[parameter_id];
parameter.name_ = parameter_name;
return parameter;
}
GFX_ASSERT(strcmp((*it).second.name_.c_str(), parameter_name) == 0);
return (*it).second; // ^ assert on hashing conflicts
}
String cs_;
String as_;
String ms_;
String vs_;
String gs_;
String ps_;
String lib_;
String file_name_;
String file_path_;
String shader_model_;
Parameters parameters_;
std::vector<String> include_paths_;
};
GfxArray<Program> programs_;
GfxHandles program_handles_;
struct Kernel
{
enum Type
{
kType_Mesh = 0,
kType_Compute,
kType_Graphics,
kType_Raytracing,
kType_Count
};
inline bool isMesh() const { return type_ == kType_Mesh; }
inline bool isCompute() const { return type_ == kType_Compute; }
inline bool isGraphics() const { return type_ == kType_Graphics; }
inline bool isRaytracing() const { return type_ == kType_Raytracing; }
struct Parameter
{
enum Type
{
kType_Buffer = 0,
kType_RWBuffer,
kType_Texture2D,
kType_RWTexture2D,
kType_Texture2DArray,
kType_RWTexture2DArray,
kType_Texture3D,
kType_RWTexture3D,
kType_TextureCube,
kType_AccelerationStructure,
kType_Constants,
kType_ConstantBuffer,
kType_Sampler,
kType_Count
};
Type type_ = kType_Count;
uint32_t id_ = 0xFFFFFFFFu;
uint64_t parameter_id_ = 0;
uint32_t descriptor_count_ = 0;
uint32_t descriptor_slot_ = 0xFFFFFFFFu;
std::vector<ID3D12Resource *> bound_textures_;
Program::Parameter const *parameter_ = nullptr;
struct Variable
{
uint32_t id_ = 0;
uint32_t data_size_ = 0;
uint32_t data_start_ = 0;
uint64_t parameter_id_ = 0;
Program::Parameter const *parameter_ = nullptr;
};
Variable *variables_ = nullptr;
uint32_t variable_count_ = 0;
uint32_t variable_size_ = 0;
};
struct LocalParameter
{
ID3D12RootSignature *local_root_signature_ = nullptr;
std::vector<Parameter> parameters_;
};
struct LocalRootSignatureAssociation
{
uint32_t local_root_signature_space = 0;
GfxShaderGroupType shader_group_type = kGfxShaderGroupType_Count;
};
String entry_point_;
GfxProgram program_ = {};
Type type_ = kType_Count;
DrawState::Data draw_state_;
std::vector<String> defines_;
std::vector<String> exports_;
std::vector<String> subobjects_;
std::map<std::wstring, LocalRootSignatureAssociation> local_root_signature_associations_;
uint64_t descriptor_heap_id_ = 0;
uint32_t *num_threads_ = nullptr;
IDxcBlob *cs_bytecode_ = nullptr;
IDxcBlob *as_bytecode_ = nullptr;
IDxcBlob *ms_bytecode_ = nullptr;
IDxcBlob *vs_bytecode_ = nullptr;
IDxcBlob *gs_bytecode_ = nullptr;
IDxcBlob *ps_bytecode_ = nullptr;
IDxcBlob *lib_bytecode_ = nullptr;
ID3D12ShaderReflection *cs_reflection_ = nullptr;
ID3D12ShaderReflection *as_reflection_ = nullptr;
ID3D12ShaderReflection *ms_reflection_ = nullptr;
ID3D12ShaderReflection *vs_reflection_ = nullptr;
ID3D12ShaderReflection *gs_reflection_ = nullptr;
ID3D12ShaderReflection *ps_reflection_ = nullptr;
ID3D12LibraryReflection *lib_reflection_ = nullptr;
ID3D12RootSignature *root_signature_ = nullptr;
std::map<uint32_t, LocalParameter> local_parameters_;
size_t sbt_record_stride_[kGfxShaderGroupType_Count] = {};
ID3D12PipelineState *pipeline_state_ = nullptr;
ID3D12StateObject *state_object_ = nullptr;
Parameter *parameters_ = nullptr;
uint32_t parameter_count_ = 0;
uint32_t vertex_stride_ = 0;
};
GfxArray<Kernel> kernels_;
GfxHandles kernel_handles_;
enum ShaderType
{
kShaderType_CS = 0,
kShaderType_AS,
kShaderType_MS,
kShaderType_VS,
kShaderType_GS,
kShaderType_PS,
kShaderType_LIB,
kShaderType_Count
};
static char const *shader_extensions_[kShaderType_Count];
uint32_t dummy_descriptors_[Kernel::Parameter::kType_Count] = {};
uint32_t dummy_rtv_descriptor_ = 0xFFFFFFFFu;
struct TimestampQuery
{
float duration_ = 0.0f;
bool was_begun_ = false;
};
GfxArray<TimestampQuery> timestamp_queries_;
GfxHandles timestamp_query_handles_;
struct TimestampQueryHeap
{
GfxBuffer query_buffer_ = {};
ID3D12QueryHeap *query_heap_ = nullptr;
std::map<uint64_t, std::pair<uint32_t, GfxTimestampQuery>> timestamp_queries_;
};
uint64_t timestamp_query_ticks_per_second_ = 0;
TimestampQueryHeap *timestamp_query_heaps_ = nullptr;
struct Sbt
{
struct ShaderRecord
{
uint32_t id_ = 0;
uint32_t commited_id_ = 0xFFFFFFFFu;
std::wstring shader_identifier_;
std::vector<Kernel::Parameter> bound_parameters_;
std::unique_ptr<Program::Parameters> parameters_;
};
ShaderRecord &insertSbtRecord(GfxShaderGroupType shader_group_type, uint32_t index)
{
auto const it = shader_records_[shader_group_type].find(index);
if(it == shader_records_[shader_group_type].end())
{
ShaderRecord &record = shader_records_[shader_group_type][index];
record.parameters_ = std::make_unique<Program::Parameters>();
return record;
}
return (*it).second;
}
void insertSbtRecordShaderIdentifier(GfxShaderGroupType shader_group_type, uint32_t index, WCHAR *shader_identifier)
{
ShaderRecord &record = insertSbtRecord(shader_group_type, index);
record.id_ += record.shader_identifier_ != shader_identifier;
record.shader_identifier_ = shader_identifier;
}
std::pair<ShaderRecord &, Program::Parameter &> insertSbtRecordParameter(GfxShaderGroupType shader_group_type, uint32_t index, char const *parameter_name)
{
uint64_t const parameter_id = Hash(parameter_name);
ShaderRecord &record = insertSbtRecord(shader_group_type, index);
Program::Parameters::iterator const it = record.parameters_->find(parameter_id);
GFX_ASSERT(parameter_name != nullptr && *parameter_name != '\0');
if(it == record.parameters_->end())
{
Program::Parameter ¶meter = (*record.parameters_)[parameter_id];
parameter.name_ = parameter_name;
return {record, parameter};
}
GFX_ASSERT(strcmp((*it).second.name_.c_str(), parameter_name) == 0);
return {record, (*it).second}; // ^ assert on hashing conflicts
}
std::map<uint32_t, ShaderRecord> shader_records_[kGfxShaderGroupType_Count];
uint64_t descriptor_heap_id_ = 0;
GfxBuffer sbt_buffers_[kGfxShaderGroupType_Count] = {};
size_t sbt_max_record_stride_[kGfxShaderGroupType_Count];
D3D12_GPU_VIRTUAL_ADDRESS_RANGE ray_generation_shader_record_;
D3D12_GPU_VIRTUAL_ADDRESS_RANGE_AND_STRIDE miss_shader_table_;
D3D12_GPU_VIRTUAL_ADDRESS_RANGE_AND_STRIDE hit_group_table_;
D3D12_GPU_VIRTUAL_ADDRESS_RANGE_AND_STRIDE callable_shader_table_;
GfxKernel kernel_ = {};
};
GfxArray<Sbt> sbts_;
GfxHandles sbt_handles_;
struct WindowsSecurityAttributes
{
SECURITY_ATTRIBUTES security_attributes_ = {};
PSECURITY_DESCRIPTOR security_descriptor_ = {};
inline SECURITY_ATTRIBUTES *operator &()
{
return &security_attributes_;
}
inline WindowsSecurityAttributes()
{
security_descriptor_ = (PSECURITY_DESCRIPTOR)gfxMalloc(SECURITY_DESCRIPTOR_MIN_LENGTH + 2 * sizeof(void**));
GFX_ASSERT(security_descriptor_ != nullptr);
PSID *ppSID = (PSID *)((PBYTE)security_descriptor_ + SECURITY_DESCRIPTOR_MIN_LENGTH);
PACL *ppACL = (PACL *)((PBYTE)ppSID + sizeof(PSID *));
InitializeSecurityDescriptor(security_descriptor_, SECURITY_DESCRIPTOR_REVISION);
SID_IDENTIFIER_AUTHORITY identifier_authority = SECURITY_WORLD_SID_AUTHORITY;
AllocateAndInitializeSid(&identifier_authority, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, ppSID);
EXPLICIT_ACCESS
explicit_access = {};
explicit_access.grfAccessPermissions = STANDARD_RIGHTS_ALL | SPECIFIC_RIGHTS_ALL;
explicit_access.grfAccessMode = SET_ACCESS;
explicit_access.grfInheritance = INHERIT_ONLY;
explicit_access.Trustee.TrusteeForm = TRUSTEE_IS_SID;
explicit_access.Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
explicit_access.Trustee.ptstrName = (LPTSTR)*ppSID;
SetEntriesInAcl(1, &explicit_access, nullptr, ppACL);
SetSecurityDescriptorDacl(security_descriptor_, TRUE, *ppACL, FALSE);
security_attributes_.nLength = sizeof(security_attributes_);
security_attributes_.lpSecurityDescriptor = security_descriptor_;
security_attributes_.bInheritHandle = TRUE;
}
inline ~WindowsSecurityAttributes()
{
PSID *ppSID = (PSID *)((PBYTE)security_descriptor_ + SECURITY_DESCRIPTOR_MIN_LENGTH);
PACL *ppACL = (PACL *)((PBYTE)ppSID + sizeof(PSID *));
FreeSid(*ppSID);
LocalFree(*ppACL);
gfxFree(security_descriptor_);
}
};
public:
GfxInternal(GfxContext &gfx) : buffer_handles_("buffer"), texture_handles_("texture"), sampler_state_handles_("sampler state")
, acceleration_structure_handles_("acceleration structure"), raytracing_primitive_handles_("raytracing primitive")
, program_handles_("program"), kernel_handles_("kernel"), timestamp_query_handles_("timestamp query"), sbt_handles_("shader binding table")
{ gfx.handle = reinterpret_cast<uint64_t>(this); }
~GfxInternal() { terminate(); }
GfxResult initialize(HWND window, GfxCreateContextFlags flags, IDXGIAdapter *adapter, GfxContext &context)
{
if(!window)
return GFX_SET_ERROR(kGfxResult_InvalidParameter, "An invalid window handle was supplied");
IDXGIFactory4 *factory = nullptr;
if(!SUCCEEDED(CreateDXGIFactory1(IID_PPV_ARGS(&factory))))
return GFX_SET_ERROR(kGfxResult_InternalError, "Unable to create DXGI factory");
if((flags & kGfxCreateContextFlag_EnableExperimentalShaders) != 0)
{
IID const features[] = { D3D12ExperimentalShaderModels };
if(!IsDeveloperModeEnabled())
return GFX_SET_ERROR(kGfxResult_InternalError, "Unable to enable experimental shaders without Windows developer mode");
if(!SUCCEEDED(D3D12EnableExperimentalFeatures(ARRAYSIZE(features), features, nullptr, nullptr)))
return GFX_SET_ERROR(kGfxResult_InternalError, "Unable to enable experimental shaders");
experimental_shaders_ = true;
}
struct DXGIFactoryReleaser
{
IDXGIFactory4 *factory;
GFX_NON_COPYABLE(DXGIFactoryReleaser);
DXGIFactoryReleaser(IDXGIFactory4 *factory) : factory(factory) {}
~DXGIFactoryReleaser() { factory->Release(); }
};
DXGIFactoryReleaser const factory_releaser(factory);
GFX_TRY(initializeDevice(flags, adapter, factory));
window_ = window;
RECT window_rect = {};
GetClientRect(window_, &window_rect);
window_width_ = window_rect.right - window_rect.left;
window_height_ = window_rect.bottom - window_rect.top;
IDXGIOutput *output = nullptr;
color_space_ = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709;
UINT output_i = 0;
LONG best_area = -1;
IDXGIOutput *current_output;
while(adapter_->EnumOutputs(output_i, ¤t_output) != DXGI_ERROR_NOT_FOUND)
{
DXGI_OUTPUT_DESC output_desc;
if(SUCCEEDED(current_output->GetDesc(&output_desc))) {
RECT rect = output_desc.DesktopCoordinates;
int intersect_area =
GFX_MAX(0L, GFX_MIN(window_rect.right, rect.right) - GFX_MAX(window_rect.left, rect.left)) *
GFX_MAX(0l, GFX_MIN(window_rect.bottom, rect.bottom) - GFX_MAX(window_rect.top, rect.top));
if(intersect_area > best_area)
{
output = current_output;
best_area = intersect_area;
}
}
if(current_output != output) current_output->Release();
output_i++;
}
if(output != nullptr)
{
IDXGIOutput6 *output6 = nullptr;
output->QueryInterface(&output6);
if(output6 != nullptr)