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graphics.cpp
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graphics.cpp
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//
// Copyright (C) Tammo Hinrichs 2021. All rights reserved.
// Licensed under the MIT License. See LICENSE.md file for full license information
//
// Including SDKDDKVer.h defines the highest available Windows platform.
#include <SDKDDKVer.h>
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
// Windows Header Files
#include <windows.h>
#include <stdio.h>
#include "system.h"
#include "graphics.h"
#include "math3d.h"
// from system.cpp
//static HWND hWnd;
#include <timeApi.h>
#pragma comment (lib, "winmm.lib")
// Direct3D
#include <d3d11_4.h>
#include <dxgi1_6.h>
#include <d3dcompiler.h>
#pragma comment (lib, "d3d11.lib")
#pragma comment (lib, "dxguid.lib")
#pragma comment (lib, "dxgi.lib")
#pragma comment (lib, "d3dcompiler.lib")
// Windows Imaging component
#include <wincodec.h>
#pragma comment(lib, "Windowscodecs.lib")
extern const char* ErrorString(HRESULT id);
#if _DEBUG
#define DXERR(x) { HRESULT _hr=(x); if(FAILED(_hr)) Fatal("%s(%d): D3D call failed: %s\nCall: %s\n",__FILE__,__LINE__,ErrorString(_hr),#x); }
#else
#define DXERR(x) { HRESULT _hr=(x); if(FAILED(_hr)) Fatal("%s(%d): D3D call failed: %s\n",__FILE__,__LINE__,ErrorString(_hr)); }
#endif
struct OutputDef
{
String DisplayName;
RCPtr<IDXGIAdapter4> Adapter;
RCPtr<IDXGIOutput6> Output;
};
RCPtr<IDXGIFactory6> Factory;
Array<OutputDef> AllOutputs;
OutputDef Output;
//RCPtr<IDXGISwapChain4> SwapChain;
RCPtr<ID3D11Device5> Dev;
RCPtr<ID3D11DeviceContext4> Ctx;
RCPtr<IDXGIOutputDuplication> Dupl;
D3D_FEATURE_LEVEL FeatureLevel;
//extern ScreenMode screenMode;
RCPtr<ID3D11SamplerState> SmplWrap;
static DXGI_FORMAT GetDXGIFormat(PixelFormat fmt)
{
switch (fmt)
{
case PixelFormat::R8: return DXGI_FORMAT_R8_UNORM;
case PixelFormat::R16: return DXGI_FORMAT_R16_UNORM;
case PixelFormat::R16F: return DXGI_FORMAT_R16_FLOAT;
case PixelFormat::R16I: return DXGI_FORMAT_R16_UINT;
case PixelFormat::R32F: return DXGI_FORMAT_R32_FLOAT;
case PixelFormat::R32I: return DXGI_FORMAT_R32_UINT;
case PixelFormat::RG8: return DXGI_FORMAT_R8G8_UNORM;
case PixelFormat::RG16: return DXGI_FORMAT_R16G16_UNORM;
case PixelFormat::RG16F: return DXGI_FORMAT_R16G16_FLOAT;
case PixelFormat::RG16I: return DXGI_FORMAT_R16G16_UINT;
case PixelFormat::RG32F: return DXGI_FORMAT_R32G32_FLOAT;
case PixelFormat::RG32I: return DXGI_FORMAT_R32G32_UINT;
case PixelFormat::RGBA8: return DXGI_FORMAT_R8G8B8A8_UNORM;
case PixelFormat::RGBA8sRGB: return DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
case PixelFormat::RGBA16: return DXGI_FORMAT_R16G16B16A16_UNORM;
case PixelFormat::RGBA16F: return DXGI_FORMAT_R16G16B16A16_FLOAT;
case PixelFormat::RGBA16I: return DXGI_FORMAT_R16G16B16A16_UINT;
case PixelFormat::RGBA32F: return DXGI_FORMAT_R32G32B32A32_FLOAT;
case PixelFormat::RGBA32I: return DXGI_FORMAT_R32G32B32A32_UINT;
case PixelFormat::BGRA8: return DXGI_FORMAT_B8G8R8A8_UNORM;
case PixelFormat::BGRA8sRGB: return DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
case PixelFormat::RGB10A2: return DXGI_FORMAT_R10G10B10A2_UNORM;
case PixelFormat::D32F: return DXGI_FORMAT_D32_FLOAT;
case PixelFormat::D24S8: return DXGI_FORMAT_D24_UNORM_S8_UINT;
default: return DXGI_FORMAT_UNKNOWN;
}
}
static int GetBitsPerPixel(PixelFormat fmt)
{
switch (fmt)
{
case PixelFormat::R8: return 8;
case PixelFormat::R16: return 16;
case PixelFormat::R16F: return 16;
case PixelFormat::R16I: return 16;
case PixelFormat::R32F: return 32;
case PixelFormat::R32I: return 32;
case PixelFormat::RG8: return 16;
case PixelFormat::RG16: return 32;
case PixelFormat::RG16F: return 32;
case PixelFormat::RG16I: return 32;
case PixelFormat::RG32F: return 64;
case PixelFormat::RG32I: return 64;
case PixelFormat::RGBA8: return 32;
case PixelFormat::RGBA8sRGB: return 32;
case PixelFormat::RGBA16: return 64;
case PixelFormat::RGBA16F: return 64;
case PixelFormat::RGBA16I: return 64;
case PixelFormat::RGBA32F: return 128;
case PixelFormat::RGBA32I: return 128;
case PixelFormat::BGRA8: return 32;
case PixelFormat::BGRA8sRGB: return 32;
case PixelFormat::RGB10A2: return 32;
case PixelFormat::D32F: return 32;
case PixelFormat::D24S8: return 32;
default: return DXGI_FORMAT_UNKNOWN;
}
}
static PixelFormat GetPixelFormat(DXGI_FORMAT fmt)
{
switch (fmt)
{
case DXGI_FORMAT_R8_UNORM: return PixelFormat::R8;
case DXGI_FORMAT_R16_UNORM: return PixelFormat::R16;
case DXGI_FORMAT_R16_FLOAT: return PixelFormat::R16F;
case DXGI_FORMAT_R16_UINT: return PixelFormat::R16I;
case DXGI_FORMAT_R32_FLOAT: return PixelFormat::R32F;
case DXGI_FORMAT_R32_UINT: return PixelFormat::R32I;
case DXGI_FORMAT_R8G8_UNORM: return PixelFormat::RG8;
case DXGI_FORMAT_R16G16_UNORM: return PixelFormat::RG16;
case DXGI_FORMAT_R16G16_FLOAT: return PixelFormat::RG16F;
case DXGI_FORMAT_R16G16_UINT: return PixelFormat::RG16I;
case DXGI_FORMAT_R32G32_FLOAT: return PixelFormat::RG32F;
case DXGI_FORMAT_R32G32_UINT: return PixelFormat::RG32I;
case DXGI_FORMAT_R8G8B8A8_UNORM: return PixelFormat::RGBA8;
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB: return PixelFormat::RGBA8sRGB;
case DXGI_FORMAT_R16G16B16A16_UNORM: return PixelFormat::RGBA16;
case DXGI_FORMAT_R16G16B16A16_FLOAT: return PixelFormat::RGBA16F;
case DXGI_FORMAT_R16G16B16A16_UINT: return PixelFormat::RGBA16I;
case DXGI_FORMAT_R32G32B32A32_FLOAT: return PixelFormat::RGBA32F;
case DXGI_FORMAT_R32G32B32A32_UINT: return PixelFormat::RGBA32I;
case DXGI_FORMAT_B8G8R8A8_UNORM: return PixelFormat::BGRA8;
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB: return PixelFormat::BGRA8sRGB;
case DXGI_FORMAT_R10G10B10A2_UNORM: return PixelFormat::RGB10A2;
case DXGI_FORMAT_D24_UNORM_S8_UINT: return PixelFormat::D24S8;
case DXGI_FORMAT_D32_FLOAT: return PixelFormat::D32F;
default: return PixelFormat::None;
}
}
static TexturePara GetTexPara(RCPtr<ID3D11Texture2D> tex)
{
D3D11_TEXTURE2D_DESC desc;
tex->GetDesc(&desc);
return {
.sizeX = desc.Width,
.sizeY = desc.Height,
.format = GetPixelFormat(desc.Format),
};
}
double Time = 0;
RCPtr<ID3D11Texture2D> backBuffer;
RCPtr<ID3D11RenderTargetView> bbRTV;
struct ShaderResource::SR
{
RCPtr<ID3D11ShaderResourceView> srv;
RCPtr<ID3D11UnorderedAccessView> uav;
};
struct Texture::Priv
{
RCPtr<ID3D11Texture2D> tex;
RCPtr<ID3D11RenderTargetView> rtv;
RCPtr<ID3D11DepthStencilView> dsv;
RCPtr<ID3D11ShaderResourceView> srv_ui; // sRGB!
SR sr;
bool noPool = false;
void Clear()
{
tex.Clear();
rtv.Clear();
srv_ui.Clear();
sr.srv.Clear();
}
ID3D11RenderTargetView *GetRTV()
{
if (!rtv)
DXERR(Dev->CreateRenderTargetView(tex, nullptr, rtv));
return rtv;
}
ID3D11DepthStencilView* GetDSV()
{
if (!dsv)
DXERR(Dev->CreateDepthStencilView(tex, nullptr, dsv));
return dsv;
}
ID3D11ShaderResourceView* GetSRV_UI()
{
if (!srv_ui)
DXERR(Dev->CreateShaderResourceView(tex, NULL, srv_ui));
return srv_ui;
}
};
Texture::Texture() : P(new Priv) {}
Texture::~Texture() { delete P; }
RCPtr<ID3D11Texture2D> Texture::GetTex2D() const { return P->tex; }
ShaderResource::SR& Texture::GetSR(bool write)
{
ASSERT(!write);
if (!P->sr.srv)
DXERR(Dev->CreateShaderResourceView(P->tex, NULL, P->sr.srv));
return P->sr;
}
void Texture::CopyFrom(RCPtr<Texture> tex) const
{
Ctx->CopyResource(P->tex, tex->P->tex);
}
struct Shader::Priv
{
Type type = Type::None;
RCPtr<Buffer> code;
RCPtr<ID3D11VertexShader> vs;
RCPtr<ID3D11HullShader> hs;
RCPtr<ID3D11DomainShader> ds;
RCPtr<ID3D11GeometryShader> gs;
RCPtr<ID3D11PixelShader> ps;
RCPtr<ID3D11ComputeShader> cs;
struct Layout
{
const void* key;
RCPtr<ID3D11InputLayout> layout;
};
Array<Layout> Layouts;
};
Shader::Shader(Type t, const void* buf, size_t size)
{
P = new Priv();
P->code = Buffer::New(size);
memcpy(P->code->ptr, buf, size);
P->type = t;
switch (t)
{
case Type::Vertex: DXERR(Dev->CreateVertexShader(P->code->ptr, P->code->size, NULL, P->vs)); break;
case Type::Hull: DXERR(Dev->CreateHullShader(P->code->ptr, P->code->size, NULL, P->hs)); break;
case Type::Domain: DXERR(Dev->CreateDomainShader(P->code->ptr, P->code->size, NULL, P->ds)); break;
case Type::Geometry: DXERR(Dev->CreateGeometryShader(P->code->ptr, P->code->size, NULL, P->gs)); break;
case Type::Pixel: DXERR(Dev->CreatePixelShader(P->code->ptr, P->code->size, NULL, P->ps)); break;
case Type::Compute: DXERR(Dev->CreateComputeShader(P->code->ptr, P->code->size, NULL, P->cs)); break;
}
}
Shader::~Shader()
{
delete P;
}
static const Array<ShaderDefine> emptyMacros;
RCPtr<Shader> CompileShader(Shader::Type type, const Buffer *buffer, const char* entryPoint, const Array<ShaderDefine> ¯os, const char* name)
{
const char* target = nullptr;
if (!name) name = entryPoint;
switch (type)
{
case Shader::Type::Compute: target = "cs_5_0"; break;
case Shader::Type::Domain: target = "ds_5_0"; break;
case Shader::Type::Geometry: target = "gs_5_0"; break;
case Shader::Type::Hull: target = "hs_5_0"; break;
case Shader::Type::Pixel: target = "ps_5_0"; break;
case Shader::Type::Vertex: target = "vs_5_0"; break;
default: ASSERT0("unknown shader type");
}
Array<D3D_SHADER_MACRO> d3dmacros;
for (auto& m : macros)
d3dmacros += D3D_SHADER_MACRO{ m.name, m.value };
d3dmacros += D3D_SHADER_MACRO{ NULL, NULL };
UINT flags = D3DCOMPILE_OPTIMIZATION_LEVEL3;
#if _DEBUG
flags |= D3DCOMPILE_DEBUG;
#endif
RCPtr<ID3DBlob> code, errors;
HRESULT hr = D3DCompile(buffer->ptr, buffer->size, name, &d3dmacros[0], NULL, entryPoint, target, flags, 0, code, errors);
if (errors.IsValid())
DPrintF("\n%s\n", errors->GetBufferPointer());
if (FAILED(hr))
Fatal("Shader compilation of %s failed", name);
RCPtr<Shader> shader(new Shader(type, code->GetBufferPointer(), code->GetBufferSize()));
return shader;
}
RCPtr<Shader> CompileShader(Shader::Type type, const String& code, const char* entryPoint, const Array<ShaderDefine> ¯os, const char* name)
{
return CompileShader(type, Buffer::FromMemory((void*)(const char*)code, code.Length(), false), entryPoint, macros, name);
}
RCPtr<Shader> CompileShader(Shader::Type type, const Buffer *code, const char* entryPoint, const char* name)
{
return CompileShader(type, code, entryPoint, emptyMacros, name);
}
RCPtr<Shader> CompileShader(Shader::Type type, const String& code, const char* entryPoint, const char* name)
{
return CompileShader(type, Buffer::FromMemory((void*)(const char*)code, code.Length(), false), entryPoint, emptyMacros, name);
}
struct GpuBuffer::Priv
{
Priv(GpuBuffer* b, Type k, Usage m) : gb(b), type(k), usage(m)
{
ASSERT(usage != Usage::Dynamic); // guess what you'll have to implement now, LOL
}
Type type;
Usage usage;
GpuBuffer* gb;
RCPtr<ID3D11Buffer> buf;
SR sr;
operator ID3D11Buffer* () { if (!buf) gb->Commit(); return buf; }
void GetFlags(uint &bind, uint &misc) const
{
switch (type)
{
case Type::Constant: bind = D3D11_BIND_CONSTANT_BUFFER; misc = 0; return;
case Type::Vertex: bind = D3D11_BIND_VERTEX_BUFFER; misc = 0; return;
case Type::Index: bind = D3D11_BIND_INDEX_BUFFER; misc = 0; return;
case Type::Structured:
bind = D3D11_BIND_SHADER_RESOURCE;
if (usage != Usage::Immutable) bind |= D3D11_BIND_UNORDERED_ACCESS;
misc = D3D11_RESOURCE_MISC_BUFFER_STRUCTURED;
return;
case Type::ByteBuffer:
bind = D3D11_BIND_SHADER_RESOURCE;
if (usage != Usage::Immutable) bind |= D3D11_BIND_UNORDERED_ACCESS;
misc = D3D11_RESOURCE_MISC_BUFFER_ALLOW_RAW_VIEWS;
return;
}
ASSERT0("unknown buffer type");
}
};
GpuBuffer::GpuBuffer(Type type, Usage usage) { P = new Priv(this, type, usage); }
GpuBuffer::~GpuBuffer() { delete P; }
void GpuBuffer::Reset() { P->buf.Clear(); }
void GpuBuffer::Upload(const void* data, uint size, uint stride, uint totalsize)
{
uint bind, misc;
P->GetFlags(bind, misc);
D3D11_BUFFER_DESC desc =
{
.ByteWidth = size,
.BindFlags = bind,
.MiscFlags = misc,
.StructureByteStride = stride,
};
if (P->type == Type::ByteBuffer)
desc.ByteWidth = totalsize;
switch (P->usage)
{
case Usage::Immutable: ASSERT(data); desc.Usage = D3D11_USAGE_IMMUTABLE; break;
case Usage::GpuOnly: ASSERT(!data); desc.Usage = D3D11_USAGE_DEFAULT; break;
case Usage::Dynamic: desc.Usage = D3D11_USAGE_DYNAMIC; desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; break;
}
D3D11_SUBRESOURCE_DATA id =
{
.pSysMem = data,
};
DXERR(Dev->CreateBuffer(&desc, data ? &id : nullptr, this->P->buf));
}
ShaderResource::SR& GpuBuffer::GetSR(bool write, uint count)
{
if (count && !write && !P->sr.srv)
{
D3D11_SHADER_RESOURCE_VIEW_DESC desc = {
.Format = (P->type == Type::ByteBuffer) ? DXGI_FORMAT_R32_TYPELESS : DXGI_FORMAT_UNKNOWN,
.ViewDimension = D3D11_SRV_DIMENSION_BUFFER,
};
desc.Buffer.FirstElement = 0;
desc.Buffer.NumElements = (P->type == Type::ByteBuffer) ? (count + 3) / 4 : count;
DXERR(Dev->CreateShaderResourceView(*P, &desc, P->sr.srv));
}
if (count && write && !P->sr.uav)
{
D3D11_UNORDERED_ACCESS_VIEW_DESC desc = {
.Format = (P->type == Type::ByteBuffer) ? DXGI_FORMAT_R32_TYPELESS : DXGI_FORMAT_UNKNOWN,
.ViewDimension = D3D11_UAV_DIMENSION_BUFFER,
};
desc.Buffer.FirstElement = 0;
desc.Buffer.NumElements = (P->type == Type::ByteBuffer) ? (count + 3) / 4 : count;
desc.Buffer.Flags = (P->type == Type::ByteBuffer) ? D3D11_BUFFER_UAV_FLAG_RAW : 0;
DXERR(Dev->CreateUnorderedAccessView(*P, &desc, P->sr.uav));
}
return P->sr;
}
RCPtr<ID3D11Buffer> GpuBuffer::GetBuffer() const { return P->buf; }
template<typename T> uint MakeLayout(D3D11_INPUT_ELEMENT_DESC* desc);
static constexpr D3D11_INPUT_ELEMENT_DESC MakeVBDesc(const char* semantic, uint index, DXGI_FORMAT format, uint offset, uint slot = 0)
{
return D3D11_INPUT_ELEMENT_DESC {
.SemanticName = semantic,
.SemanticIndex = index,
.Format = format,
.InputSlot = slot,
.AlignedByteOffset = offset,
.InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA,
};
}
//------------------------------------------------------------------------------------------------
template<> uint MakeLayout<VertexC>(D3D11_INPUT_ELEMENT_DESC* desc)
{
desc[0] = MakeVBDesc("POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, offsetof(VertexC, pos));
desc[1] = MakeVBDesc("COLOR", 0, DXGI_FORMAT_B8G8R8A8_UNORM, offsetof(VertexC, color));
return 2;
}
template void Geometry<VertexC>::Draw(GState& , const GBindings&, int);
template<> uint MakeLayout<VertexCT>(D3D11_INPUT_ELEMENT_DESC* desc)
{
desc[0] = MakeVBDesc("POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, offsetof(VertexCT, pos));
desc[1] = MakeVBDesc("COLOR", 0, DXGI_FORMAT_B8G8R8A8_UNORM, offsetof(VertexCT, color));
desc[2] = MakeVBDesc("TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, offsetof(VertexCT, uv));
return 3;
}
template void Geometry<VertexCT>::Draw(GState&, const GBindings&, int);
//------------------------------------------------------------------------------------------------
template <typename TV> void SetVertexLayout(RCPtr<Shader> vs)
{
RCPtr<ID3D11InputLayout> layout;
D3D11_INPUT_ELEMENT_DESC iedesc[16];
uint niedesc = MakeLayout<TV>(iedesc);
const void* key = &MakeLayout<TV>; // unique per vertex structure
for (const auto &lay : vs->P->Layouts)
{
if (lay.key == key)
{
layout = lay.layout;
break;
}
}
if (!layout)
{
DXERR(Dev->CreateInputLayout(iedesc, niedesc, vs->P->code->ptr, vs->P->code->size, layout));
Shader::Priv::Layout cl;
cl.key = key;
cl.layout = layout;
vs->P->Layouts += cl;
}
Ctx->IASetInputLayout(layout);
}
static int GetSRVs(ShaderResource* const sr[], int n, ID3D11ShaderResourceView** srv)
{
int maxpst = -1;
for (int i = 0; i < n; i++)
{
auto tex = sr[i];
if (tex)
{
srv[i] = tex->GetSR(false).srv;
maxpst = i;
}
else
break;
}
return maxpst + 1;
}
static void DrawInternal(GState& state, const GBindings& binds, int instances, int vc, int ic)
{
Ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ID3D11ShaderResourceView* srvs[16] = {};
Ctx->VSSetShader(state.VS->P->vs, NULL, 0);
int maxvst = GetSRVs(binds.vsres, 16, srvs);
if (maxvst > 0)
Ctx->VSSetShaderResources(0, maxvst, srvs);
ID3D11Buffer* vscb[4] = {};
for (int i = 0; i < 4; i++)
{
auto cb = binds.vscb[i];
if (cb)
vscb[i] = *cb->P;
}
Ctx->VSSetConstantBuffers(0, 4, vscb);
ID3D11RenderTargetView* views[4] = {};
for (int i = 0; i < 4; i++)
{
auto tgt = binds.target[i];
if (tgt)
{
views[i] = tgt->P->GetRTV();
}
}
ID3D11DepthStencilView* dsv = binds.depth ? binds.depth->P->GetDSV() : nullptr;
Ctx->OMSetRenderTargets(4, views, dsv);
auto& tp0 = binds.target[0]->para;
D3D11_VIEWPORT viewport = {
.TopLeftX = 0,
.TopLeftY = 0,
.Width = (float)tp0.sizeX,
.Height = (float)tp0.sizeY,
.MinDepth = 0,
.MaxDepth = 1,
};
Ctx->RSSetViewports(1, &viewport);
Ctx->PSSetShader(state.PS->P->ps, NULL, 0);
int maxpst = GetSRVs(binds.psres, 16, srvs);
if (maxpst > 0)
Ctx->PSSetShaderResources(0, maxpst, srvs);
ID3D11SamplerState* pssmp[1] = { SmplWrap };
Ctx->PSSetSamplers(0, 1, pssmp);
ID3D11Buffer* pscb[4] = {};
for (int i = 0; i < 4; i++)
{
auto cb = binds.pscb[i];
if (cb)
pscb[i] = *cb->P;
}
Ctx->PSSetConstantBuffers(0, 4, pscb);
if (ic)
{
if (instances > 1)
Ctx->DrawIndexedInstanced(ic, instances, 0, 0, 0);
else
Ctx->DrawIndexed(ic, 0, 0);
}
else
{
if (instances > 1)
Ctx->DrawInstanced(vc, instances, 0, 0);
else
Ctx->Draw(vc, 0);
}
static ID3D11ShaderResourceView* nullsrv[16] = {};
if (maxvst > 0) Ctx->VSSetShaderResources(0, maxvst, nullsrv);
if (maxpst > 0) Ctx->PSSetShaderResources(0, maxpst, nullsrv);
}
template <class TV> void Geometry<TV>::Draw(GState& state, const GBindings& binds, int instances)
{
ID3D11Buffer* vbs[] = { *vb.P };
UINT vbstrides[] = { vb.Stride() };
UINT vboffs[] = { 0 };
Ctx->IASetVertexBuffers(0, 1, vbs, vbstrides, vboffs);
SetVertexLayout<TV>(state.VS);
if (ib.Count())
Ctx->IASetIndexBuffer(*ib.P, DXGI_FORMAT_R16_UINT, 0);
DrawInternal(state, binds, instances, vb.Count(), ib.Count());
}
/*
ScreenMode GetScreenMode()
{
return screenMode;
}
*/
static RCPtr<IWICImagingFactory> factory;
struct WICFormatTable
{
GUID pfGuid;
PixelFormat format;
};
static WICFormatTable WICFormats[] =
{
GUID_WICPixelFormat32bppRGBA1010102, PixelFormat::RGB10A2,
GUID_WICPixelFormat32bppRGBA1010102XR, PixelFormat::RGB10A2,
GUID_WICPixelFormat32bppR10G10B10A2,PixelFormat::RGB10A2,
GUID_WICPixelFormat32bppR10G10B10A2HDR10, PixelFormat::RGB10A2,
GUID_WICPixelFormat32bppRGB, PixelFormat::RGBA8sRGB,
GUID_WICPixelFormat32bppBGR, PixelFormat::BGRA8sRGB,
GUID_WICPixelFormat32bppRGBA, PixelFormat::RGBA8sRGB,
GUID_WICPixelFormat32bppBGRA, PixelFormat::BGRA8sRGB,
GUID_WICPixelFormat64bppRGB, PixelFormat::RGBA16,
GUID_WICPixelFormat64bppRGBA, PixelFormat::RGBA16,
GUID_WICPixelFormat64bppRGBHalf, PixelFormat::RGBA16F,
GUID_WICPixelFormat64bppRGBAHalf, PixelFormat::RGBA16F,
GUID_WICPixelFormat128bppRGBFloat, PixelFormat::RGBA32F,
GUID_WICPixelFormat128bppRGBAFloat, PixelFormat::RGBA32F,
GUID_WICPixelFormat8bppGray, PixelFormat::R8,
GUID_WICPixelFormat16bppGray, PixelFormat::R16,
GUID_WICPixelFormat16bppGrayFixedPoint, PixelFormat::R16,
GUID_WICPixelFormat16bppGrayHalf, PixelFormat::R16F,
GUID_WICPixelFormat32bppGrayFloat, PixelFormat::R32F,
GUID_WICPixelFormat32bppGrayFixedPoint, PixelFormat::R32I,
};
struct WICConvertFormatTable
{
GUID pfGuid;
GUID destGuid;
};
static WICConvertFormatTable WICConvertFormats[] =
{
GUID_WICPixelFormat8bppGray, GUID_WICPixelFormat8bppGray
};
bool TexturePara::Equals(const TexturePara& p) const
{
return sizeX == p.sizeX && sizeY == p.sizeY && mipmaps == p.mipmaps && format == p.format;
}
RCPtr<Texture> LoadImg(const char *filename)
{
HRESULT hr;
if (!factory)
{
hr = CoCreateInstance(CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_IWICImagingFactory, factory);
ASSERT(SUCCEEDED(hr));
}
RCPtr<IWICBitmapDecoder> decoder;
wchar_t fn16[2048];
MultiByteToWideChar(CP_UTF8, 0, filename, -1, fn16, 2048);
hr = factory->CreateDecoderFromFilename(fn16, NULL, GENERIC_READ, WICDecodeMetadataCacheOnDemand, decoder);
ASSERT(SUCCEEDED(hr));
RCPtr<IWICBitmapFrameDecode> frame;
hr = decoder->GetFrame(0, frame);
ASSERT(SUCCEEDED(hr));
UINT w, h;
frame->GetSize(&w, &h);
PixelFormat fmt = PixelFormat::None;
RCPtr<IWICBitmapSource> source = frame;
for (;;)
{
WICPixelFormatGUID pfguid;
source->GetPixelFormat(&pfguid);
for (auto& f : WICFormats)
if (pfguid == f.pfGuid)
fmt = f.format;
if (fmt != PixelFormat::None)
break;
GUID pfdest = GUID_WICPixelFormat32bppRGBA;
for (auto& f : WICConvertFormats)
if (pfguid == f.pfGuid)
pfdest = f.destGuid;
RCPtr<IWICBitmapSource> dest;
hr = WICConvertBitmapSource(pfdest, source, dest);
ASSERT(SUCCEEDED(hr));
source = dest;
}
int bpp = GetBitsPerPixel(fmt);
uint8* buffer = new uint8[2 * w * h * bpp];
hr = source->CopyPixels(NULL, w * bpp, w * h * bpp, buffer);
ASSERT(SUCCEEDED(hr));
return CreateTexture({ .sizeX = w, .sizeY = h, .format = fmt }, buffer);
}
static RCPtr<Texture> CreateTexture(RCPtr<ID3D11Texture2D> &from)
{
RCPtr<Texture> tex = new Texture();
tex->P->tex = from;
D3D11_TEXTURE2D_DESC tdesc;
tex->P->tex->GetDesc(&tdesc);
tex->para.sizeX = tdesc.Width;
tex->para.sizeY = tdesc.Height;
tex->para.format = GetPixelFormat(tdesc.Format);
tex->para.mipmaps = tdesc.MipLevels;
return tex;
}
RCPtr<Texture> CreateTexture(const TexturePara& para, const void* data)
{
RCPtr<Texture> tex = new Texture();
tex->para = para;
D3D11_TEXTURE2D_DESC tdesc = {
.Width = para.sizeX,
.Height = para.sizeY,
.MipLevels = 1,
.ArraySize = 1,
.Format = GetDXGIFormat(para.format),
.SampleDesc = {. Count = 1 },
.Usage = D3D11_USAGE_IMMUTABLE,
.BindFlags = D3D11_BIND_SHADER_RESOURCE,
};
D3D11_SUBRESOURCE_DATA id =
{
.pSysMem = data,
.SysMemPitch = para.sizeX * GetBitsPerPixel(para.format) / 8,
};
DXERR(Dev->CreateTexture2D(&tdesc, &id, tex->P->tex));
return tex;
}
static Array<Texture::Priv> RTPool;
static Array<Texture::Priv> lastRTPool;
RenderTarget::~RenderTarget() {
if (!P->noPool)
RTPool += *P;
}
void GfxInit()
{
CreateDXGIFactory1(__uuidof(IDXGIFactory6), Factory);
Array<DISPLAYCONFIG_PATH_INFO> dcPaths;
Array<DISPLAYCONFIG_MODE_INFO> dcModes;
{
// enumerate all display paths
// Determine how many path and mode structures to allocate
uint flags = QDC_ONLY_ACTIVE_PATHS | QDC_VIRTUAL_MODE_AWARE;
UINT32 pathCount, modeCount;
GetDisplayConfigBufferSizes(flags, &pathCount, &modeCount);
// Allocate the path and mode arrays
dcPaths.SetSize(pathCount);
dcModes.SetSize(modeCount);
// Get all active paths and their modes
QueryDisplayConfig(flags, &pathCount, &dcPaths[0], &modeCount, &dcModes[0], nullptr);
// The function may have returned fewer paths/modes than estimated
dcPaths.SetSize(pathCount);
dcModes.SetSize(modeCount);
}
// enumerate all adapters and outputs
RCPtr<IDXGIAdapter4> adapter;
// find first adapter with dedicated video memory. This should select the proper GPU on laptops.
for (UINT i = 0; Factory->EnumAdapterByGpuPreference(i, DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE, __uuidof(IDXGIAdapter4), adapter) != DXGI_ERROR_NOT_FOUND; ++i)
{
DXGI_ADAPTER_DESC3 adesc;
adapter->GetDesc3(&adesc);
String adapterName = String::PrintF("%d: %S", i + 1, adesc.Description);
RCPtr<IDXGIOutput> out0;
for (UINT oi = 0; SUCCEEDED(adapter->EnumOutputs(oi, out0)); ++oi)
{
RCPtr<IDXGIOutput6> output = out0;
DXGI_OUTPUT_DESC1 odesc;
output->GetDesc1(&odesc);
String name;
for (auto& path : dcPaths)
{
// Find the target (monitor) friendly name
DISPLAYCONFIG_SOURCE_DEVICE_NAME srcName = {
.header = {
.type = DISPLAYCONFIG_DEVICE_INFO_GET_SOURCE_NAME,
.size = sizeof(srcName),
.adapterId = path.sourceInfo.adapterId,
.id = path.sourceInfo.id,
}
};
DisplayConfigGetDeviceInfo(&srcName.header);
if (!wcscmp(srcName.viewGdiDeviceName, odesc.DeviceName))
{
DISPLAYCONFIG_TARGET_DEVICE_NAME targetName = {
.header = {
.type = DISPLAYCONFIG_DEVICE_INFO_GET_TARGET_NAME,
.size = sizeof(targetName),
.adapterId = path.targetInfo.adapterId,
.id = path.targetInfo.id,
}
};
DisplayConfigGetDeviceInfo(&targetName.header);
name = targetName.monitorFriendlyDeviceName;
break;
}
}
if (!name)
{
DISPLAY_DEVICEW dd = { .cb = sizeof(dd) };
if (EnumDisplayDevicesW(odesc.DeviceName, 0, &dd, 0))
name = dd.DeviceString;
}
name = String::PrintF("%d: %s (%s)", oi+1, (const char*)name, (const char*)adapterName);
AllOutputs += OutputDef{ .DisplayName = name, .Adapter = adapter, .Output = output, };
}
}
}
void GetVideoOutputs(Array<String>& into)
{
into.Clear();
for (auto& out : AllOutputs)
into += out.DisplayName;
}
void InitD3D(int outputIndex)
{
timeBeginPeriod(1);
Output = AllOutputs[outputIndex];
// create device and upgrade
const D3D_FEATURE_LEVEL levels[] = { D3D_FEATURE_LEVEL_12_1, D3D_FEATURE_LEVEL_12_0, D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0 };
UINT flags = 0;
#ifdef _DEBUG
flags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
RCPtr<ID3D11Device> dev0;
RCPtr<ID3D11DeviceContext> ctx0;
DXERR(D3D11CreateDevice(Output.Adapter, Output.Adapter.IsValid() ? D3D_DRIVER_TYPE_UNKNOWN : D3D_DRIVER_TYPE_HARDWARE , NULL, flags, levels, _countof(levels), D3D11_SDK_VERSION, dev0, &FeatureLevel, ctx0));
Dev = dev0;
Ctx = ctx0;
/*
// window description
DXGI_SWAP_CHAIN_DESC1 sd =
{
.Width = screenMode.width,
.Height = screenMode.height,
.Format = DXGI_FORMAT_R10G10B10A2_UNORM,
.Stereo = FALSE,
.SampleDesc = {.Count = 1, .Quality = 0,},
.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT,
.BufferCount = 2,
.Scaling = DXGI_SCALING_NONE,
.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD,
.AlphaMode = DXGI_ALPHA_MODE_IGNORE,
.Flags = 0,
};
// get swapchain and upgrade
RCPtr<IDXGISwapChain1> sc1;
DXERR(Factory->CreateSwapChainForHwnd(Dev, hWnd, &sd, nullptr, nullptr, sc1));
SwapChain = sc1;
sc1->GetDesc1(&sd);
screenMode.width = sd.Width;
screenMode.height = sd.Height;
D3D11_SAMPLER_DESC smpdesc = {
.Filter = D3D11_FILTER_ANISOTROPIC,
.AddressU = D3D11_TEXTURE_ADDRESS_WRAP,
.AddressV = D3D11_TEXTURE_ADDRESS_WRAP,
.AddressW = D3D11_TEXTURE_ADDRESS_WRAP,
.MaxAnisotropy = 16,
.MaxLOD = D3D11_FLOAT32_MAX,
};
DXERR(Dev->CreateSamplerState(&smpdesc, SmplWrap));
*/
}
void ExitD3D()
{
RTPool.Clear();
lastRTPool.Clear();
timeEndPeriod(1);
Output = {};
SmplWrap.Clear();
Dupl.Clear();
Ctx.Clear();
Dev.Clear();
}
RCPtr<IDXGIAdapter> GetAdapter() { return Output.Adapter; }
static int64 lastFrameTime = 0;
static RCPtr<Texture> capTex;
static DXGI_OUTPUT_DESC1 outdesc;
static DXGI_OUTDUPL_DESC odd;
static double frameCount = 0;
static const DXGI_FORMAT scanoutFormats[] = {
DXGI_FORMAT_R16G16B16A16_UINT,
DXGI_FORMAT_R16G16B16A16_FLOAT,
DXGI_FORMAT_R10G10B10A2_UNORM,
DXGI_FORMAT_R8G8B8A8_UNORM,
DXGI_FORMAT_B8G8R8A8_UNORM,
};
bool CaptureFrame(int timeoutMs, CaptureInfo &ci)
{
HRESULT hr;
// get output duplication object
if (!Dupl.IsValid())
{
hr = Output.Output->DuplicateOutput1(Dev, 0, _countof(scanoutFormats), scanoutFormats, Dupl);
if (hr == DXGI_ERROR_UNSUPPORTED)
hr = Output.Output->DuplicateOutput(Dev, Dupl);
if (hr == E_ACCESSDENIED)
{
// so far this only happens in the middle of a mode switch, try again later
Sleep(timeoutMs);
return false;
}
DXERR(hr);
Dupl->GetDesc(&odd);
Output.Output->GetDesc1(&outdesc);