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Added ImGui precompiled shaders

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(And removed dependency to d3dcompile)
This commit is contained in:
Nemirtingas
2019-07-25 23:32:52 +02:00
parent ead81a704b
commit 3d3c8b26cd
6 changed files with 418 additions and 45 deletions
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27
ImGui/impls/imgui_impl_dx12.cpp
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@ -23,21 +23,22 @@
// 2018-06-08: DirectX12: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle (to ease support for future multi-viewport).
// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
#include "imgui.h"
#include "../imgui.h"
#include "imgui_impl_dx12.h"
// DirectX
#include <d3d12.h>
#include <dxgi1_4.h>
#include <d3dcompiler.h>
#ifdef _MSC_VER
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#include "../../overlay_experimental/ImGui_ShaderBlobs.h"
#ifdef USE_D3DCOMPILE
static ID3DBlob* g_pVertexShaderBlob = NULL;
static ID3DBlob* g_pPixelShaderBlob = NULL;
#endif
// DirectX data
static ID3D12Device* g_pd3dDevice = NULL;
static ID3D10Blob* g_pVertexShaderBlob = NULL;
static ID3D10Blob* g_pPixelShaderBlob = NULL;
static ID3D12RootSignature* g_pRootSignature = NULL;
static ID3D12PipelineState* g_pPipelineState = NULL;
static DXGI_FORMAT g_RTVFormat = DXGI_FORMAT_UNKNOWN;
@ -441,6 +442,8 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
ID3DBlob* blob = NULL;
static decltype(D3D12SerializeRootSignature)* D3D12SerializeRootSignature = (decltype(D3D12SerializeRootSignature))GetProcAddress(GetModuleHandle("d3d12.dll"), "D3D12SerializeRootSignature");
if (D3D12SerializeRootSignature(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, NULL) != S_OK)
return false;
@ -467,6 +470,7 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
// Create the vertex shader
{
#ifdef USE_D3DCOMPILE
static const char* vertexShader =
"cbuffer vertexBuffer : register(b0) \
{\
@ -499,7 +503,11 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
if (g_pVertexShaderBlob == NULL) // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
return false;
psoDesc.VS = { g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize() };
#else
psoDesc.VS = { ImGui_vertexShaderDX12, ImGui_vertexShaderDX12_len };
#endif
// Create the input layout
static D3D12_INPUT_ELEMENT_DESC local_layout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, IM_OFFSETOF(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
@ -511,6 +519,7 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
// Create the pixel shader
{
#ifdef USE_D3DCOMPILE
static const char* pixelShader =
"struct PS_INPUT\
{\
@ -531,6 +540,10 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
if (g_pPixelShaderBlob == NULL) // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
return false;
psoDesc.PS = { g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize() };
#else
psoDesc.PS = { ImGui_pixelShaderDX12, ImGui_pixelShaderDX12_len };
#endif
}
// Create the blending setup
@ -589,8 +602,10 @@ void ImGui_ImplDX12_InvalidateDeviceObjects()
return;
ImGuiIO& io = ImGui::GetIO();
#ifdef USE_D3DCOMPILE
if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; }
if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; }
#endif
if (g_pRootSignature) { g_pRootSignature->Release(); g_pRootSignature = NULL; }
if (g_pPipelineState) { g_pPipelineState->Release(); g_pPipelineState = NULL; }
if (g_pFontTextureResource) { g_pFontTextureResource->Release(); g_pFontTextureResource = NULL; io.Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.