485 lines
20 KiB
C++
485 lines
20 KiB
C++
// dear imgui: Renderer for Kiwano (DirectX10)
|
|
|
|
#include "../kiwano-imgui.h"
|
|
#include "imgui_impl_dx10.h"
|
|
|
|
// DirectX
|
|
#include <stdio.h>
|
|
#include <d3d10_1.h>
|
|
#include <d3d10.h>
|
|
#include <d3dcompiler.h>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
|
|
#endif
|
|
|
|
// DirectX data
|
|
static ID3D10Device* g_pd3dDevice = NULL;
|
|
static IDXGIFactory* g_pFactory = NULL;
|
|
static ID3D10Buffer* g_pVB = NULL;
|
|
static ID3D10Buffer* g_pIB = NULL;
|
|
static ID3D10Blob* g_pVertexShaderBlob = NULL;
|
|
static ID3D10VertexShader* g_pVertexShader = NULL;
|
|
static ID3D10InputLayout* g_pInputLayout = NULL;
|
|
static ID3D10Buffer* g_pVertexConstantBuffer = NULL;
|
|
static ID3D10Blob* g_pPixelShaderBlob = NULL;
|
|
static ID3D10PixelShader* g_pPixelShader = NULL;
|
|
static ID3D10SamplerState* g_pFontSampler = NULL;
|
|
static ID3D10ShaderResourceView*g_pFontTextureView = NULL;
|
|
static ID3D10RasterizerState* g_pRasterizerState = NULL;
|
|
static ID3D10BlendState* g_pBlendState = NULL;
|
|
static ID3D10DepthStencilState* g_pDepthStencilState = NULL;
|
|
static int g_VertexBufferSize = 5000, g_IndexBufferSize = 10000;
|
|
|
|
struct VERTEX_CONSTANT_BUFFER
|
|
{
|
|
float mvp[4][4];
|
|
};
|
|
|
|
// Render function
|
|
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
|
|
void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
|
|
{
|
|
ID3D10Device* ctx = g_pd3dDevice;
|
|
|
|
// Create and grow vertex/index buffers if needed
|
|
if (!g_pVB || g_VertexBufferSize < draw_data->TotalVtxCount)
|
|
{
|
|
if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
|
|
g_VertexBufferSize = draw_data->TotalVtxCount + 5000;
|
|
D3D10_BUFFER_DESC desc;
|
|
memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
|
|
desc.Usage = D3D10_USAGE_DYNAMIC;
|
|
desc.ByteWidth = g_VertexBufferSize * sizeof(ImDrawVert);
|
|
desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
|
|
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
|
|
desc.MiscFlags = 0;
|
|
if (ctx->CreateBuffer(&desc, NULL, &g_pVB) < 0)
|
|
return;
|
|
}
|
|
|
|
if (!g_pIB || g_IndexBufferSize < draw_data->TotalIdxCount)
|
|
{
|
|
if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
|
|
g_IndexBufferSize = draw_data->TotalIdxCount + 10000;
|
|
D3D10_BUFFER_DESC desc;
|
|
memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
|
|
desc.Usage = D3D10_USAGE_DYNAMIC;
|
|
desc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx);
|
|
desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
|
|
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
|
|
if (ctx->CreateBuffer(&desc, NULL, &g_pIB) < 0)
|
|
return;
|
|
}
|
|
|
|
// Copy and convert all vertices into a single contiguous buffer
|
|
ImDrawVert* vtx_dst = NULL;
|
|
ImDrawIdx* idx_dst = NULL;
|
|
g_pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&vtx_dst);
|
|
g_pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&idx_dst);
|
|
for (int n = 0; n < draw_data->CmdListsCount; n++)
|
|
{
|
|
const ImDrawList* cmd_list = draw_data->CmdLists[n];
|
|
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
|
|
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
|
|
vtx_dst += cmd_list->VtxBuffer.Size;
|
|
idx_dst += cmd_list->IdxBuffer.Size;
|
|
}
|
|
g_pVB->Unmap();
|
|
g_pIB->Unmap();
|
|
|
|
// Setup orthographic projection matrix into our constant buffer
|
|
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
|
|
{
|
|
void* mapped_resource;
|
|
if (g_pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
|
|
return;
|
|
VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource;
|
|
float L = draw_data->DisplayPos.x;
|
|
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
|
|
float T = draw_data->DisplayPos.y;
|
|
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
|
|
float mvp[4][4] =
|
|
{
|
|
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
|
|
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
|
|
{ 0.0f, 0.0f, 0.5f, 0.0f },
|
|
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
|
|
};
|
|
memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
|
|
g_pVertexConstantBuffer->Unmap();
|
|
}
|
|
|
|
// Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
|
|
struct BACKUP_DX10_STATE
|
|
{
|
|
UINT ScissorRectsCount, ViewportsCount;
|
|
D3D10_RECT ScissorRects[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
|
|
D3D10_VIEWPORT Viewports[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
|
|
ID3D10RasterizerState* RS;
|
|
ID3D10BlendState* BlendState;
|
|
FLOAT BlendFactor[4];
|
|
UINT SampleMask;
|
|
UINT StencilRef;
|
|
ID3D10DepthStencilState* DepthStencilState;
|
|
ID3D10ShaderResourceView* PSShaderResource;
|
|
ID3D10SamplerState* PSSampler;
|
|
ID3D10PixelShader* PS;
|
|
ID3D10VertexShader* VS;
|
|
D3D10_PRIMITIVE_TOPOLOGY PrimitiveTopology;
|
|
ID3D10Buffer* IndexBuffer, *VertexBuffer, *VSConstantBuffer;
|
|
UINT IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
|
|
DXGI_FORMAT IndexBufferFormat;
|
|
ID3D10InputLayout* InputLayout;
|
|
};
|
|
BACKUP_DX10_STATE old;
|
|
old.ScissorRectsCount = old.ViewportsCount = D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
|
|
ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
|
|
ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
|
|
ctx->RSGetState(&old.RS);
|
|
ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
|
|
ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
|
|
ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
|
|
ctx->PSGetSamplers(0, 1, &old.PSSampler);
|
|
ctx->PSGetShader(&old.PS);
|
|
ctx->VSGetShader(&old.VS);
|
|
ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
|
|
ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
|
|
ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
|
|
ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
|
|
ctx->IAGetInputLayout(&old.InputLayout);
|
|
|
|
// Setup viewport
|
|
D3D10_VIEWPORT vp;
|
|
memset(&vp, 0, sizeof(D3D10_VIEWPORT));
|
|
vp.Width = (UINT)draw_data->DisplaySize.x;
|
|
vp.Height = (UINT)draw_data->DisplaySize.y;
|
|
vp.MinDepth = 0.0f;
|
|
vp.MaxDepth = 1.0f;
|
|
vp.TopLeftX = vp.TopLeftY = 0;
|
|
ctx->RSSetViewports(1, &vp);
|
|
|
|
// Bind shader and vertex buffers
|
|
unsigned int stride = sizeof(ImDrawVert);
|
|
unsigned int offset = 0;
|
|
ctx->IASetInputLayout(g_pInputLayout);
|
|
ctx->IASetVertexBuffers(0, 1, &g_pVB, &stride, &offset);
|
|
ctx->IASetIndexBuffer(g_pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
|
|
ctx->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
|
|
ctx->VSSetShader(g_pVertexShader);
|
|
ctx->VSSetConstantBuffers(0, 1, &g_pVertexConstantBuffer);
|
|
ctx->PSSetShader(g_pPixelShader);
|
|
ctx->PSSetSamplers(0, 1, &g_pFontSampler);
|
|
|
|
// Setup render state
|
|
const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
|
|
ctx->OMSetBlendState(g_pBlendState, blend_factor, 0xffffffff);
|
|
ctx->OMSetDepthStencilState(g_pDepthStencilState, 0);
|
|
ctx->RSSetState(g_pRasterizerState);
|
|
|
|
// Render command lists
|
|
int vtx_offset = 0;
|
|
int idx_offset = 0;
|
|
ImVec2 pos = draw_data->DisplayPos;
|
|
for (int n = 0; n < draw_data->CmdListsCount; n++)
|
|
{
|
|
const ImDrawList* cmd_list = draw_data->CmdLists[n];
|
|
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
|
|
{
|
|
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
|
|
if (pcmd->UserCallback)
|
|
{
|
|
// User callback (registered via ImDrawList::AddCallback)
|
|
pcmd->UserCallback(cmd_list, pcmd);
|
|
}
|
|
else
|
|
{
|
|
// Apply scissor/clipping rectangle
|
|
const D3D10_RECT r = { (LONG)(pcmd->ClipRect.x - pos.x), (LONG)(pcmd->ClipRect.y - pos.y), (LONG)(pcmd->ClipRect.z - pos.x), (LONG)(pcmd->ClipRect.w - pos.y)};
|
|
ctx->RSSetScissorRects(1, &r);
|
|
|
|
// Bind texture, Draw
|
|
ID3D10ShaderResourceView* texture_srv = (ID3D10ShaderResourceView*)pcmd->TextureId;
|
|
ctx->PSSetShaderResources(0, 1, &texture_srv);
|
|
ctx->DrawIndexed(pcmd->ElemCount, idx_offset, vtx_offset);
|
|
}
|
|
idx_offset += pcmd->ElemCount;
|
|
}
|
|
vtx_offset += cmd_list->VtxBuffer.Size;
|
|
}
|
|
|
|
// Restore modified DX state
|
|
ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
|
|
ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
|
|
ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
|
|
ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
|
|
ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
|
|
ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
|
|
ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
|
|
ctx->PSSetShader(old.PS); if (old.PS) old.PS->Release();
|
|
ctx->VSSetShader(old.VS); if (old.VS) old.VS->Release();
|
|
ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
|
|
ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
|
|
ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
|
|
ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
|
|
ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
|
|
}
|
|
|
|
static void ImGui_ImplDX10_CreateFontsTexture()
|
|
{
|
|
// Build texture atlas
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
unsigned char* pixels;
|
|
int width, height;
|
|
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
|
|
|
|
// Upload texture to graphics system
|
|
{
|
|
D3D10_TEXTURE2D_DESC desc;
|
|
ZeroMemory(&desc, sizeof(desc));
|
|
desc.Width = width;
|
|
desc.Height = height;
|
|
desc.MipLevels = 1;
|
|
desc.ArraySize = 1;
|
|
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
desc.SampleDesc.Count = 1;
|
|
desc.Usage = D3D10_USAGE_DEFAULT;
|
|
desc.BindFlags = D3D10_BIND_SHADER_RESOURCE;
|
|
desc.CPUAccessFlags = 0;
|
|
|
|
ID3D10Texture2D *pTexture = NULL;
|
|
D3D10_SUBRESOURCE_DATA subResource;
|
|
subResource.pSysMem = pixels;
|
|
subResource.SysMemPitch = desc.Width * 4;
|
|
subResource.SysMemSlicePitch = 0;
|
|
g_pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
|
|
|
|
// Create texture view
|
|
D3D10_SHADER_RESOURCE_VIEW_DESC srv_desc;
|
|
ZeroMemory(&srv_desc, sizeof(srv_desc));
|
|
srv_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
srv_desc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
|
|
srv_desc.Texture2D.MipLevels = desc.MipLevels;
|
|
srv_desc.Texture2D.MostDetailedMip = 0;
|
|
g_pd3dDevice->CreateShaderResourceView(pTexture, &srv_desc, &g_pFontTextureView);
|
|
pTexture->Release();
|
|
}
|
|
|
|
// Store our identifier
|
|
io.Fonts->TexID = (ImTextureID)g_pFontTextureView;
|
|
|
|
// Create texture sampler
|
|
{
|
|
D3D10_SAMPLER_DESC desc;
|
|
ZeroMemory(&desc, sizeof(desc));
|
|
desc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR;
|
|
desc.AddressU = D3D10_TEXTURE_ADDRESS_WRAP;
|
|
desc.AddressV = D3D10_TEXTURE_ADDRESS_WRAP;
|
|
desc.AddressW = D3D10_TEXTURE_ADDRESS_WRAP;
|
|
desc.MipLODBias = 0.f;
|
|
desc.ComparisonFunc = D3D10_COMPARISON_ALWAYS;
|
|
desc.MinLOD = 0.f;
|
|
desc.MaxLOD = 0.f;
|
|
g_pd3dDevice->CreateSamplerState(&desc, &g_pFontSampler);
|
|
}
|
|
}
|
|
|
|
bool ImGui_ImplDX10_CreateDeviceObjects()
|
|
{
|
|
if (!g_pd3dDevice)
|
|
return false;
|
|
if (g_pFontSampler)
|
|
ImGui_ImplDX10_InvalidateDeviceObjects();
|
|
|
|
// By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
|
|
// If you would like to use this DX10 sample code but remove this dependency you can:
|
|
// 1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
|
|
// 2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
|
|
// See https://github.com/ocornut/imgui/pull/638 for sources and details.
|
|
|
|
// Create the vertex shader
|
|
{
|
|
static const char* vertexShader =
|
|
"cbuffer vertexBuffer : register(b0) \
|
|
{\
|
|
float4x4 ProjectionMatrix; \
|
|
};\
|
|
struct VS_INPUT\
|
|
{\
|
|
float2 pos : POSITION;\
|
|
float4 col : COLOR0;\
|
|
float2 uv : TEXCOORD0;\
|
|
};\
|
|
\
|
|
struct PS_INPUT\
|
|
{\
|
|
float4 pos : SV_POSITION;\
|
|
float4 col : COLOR0;\
|
|
float2 uv : TEXCOORD0;\
|
|
};\
|
|
\
|
|
PS_INPUT main(VS_INPUT input)\
|
|
{\
|
|
PS_INPUT output;\
|
|
output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
|
|
output.col = input.col;\
|
|
output.uv = input.uv;\
|
|
return output;\
|
|
}";
|
|
|
|
D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_4_0", 0, 0, &g_pVertexShaderBlob, NULL);
|
|
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;
|
|
if (g_pd3dDevice->CreateVertexShader((DWORD*)g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), &g_pVertexShader) != S_OK)
|
|
return false;
|
|
|
|
// Create the input layout
|
|
D3D10_INPUT_ELEMENT_DESC local_layout[] =
|
|
{
|
|
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->pos), D3D10_INPUT_PER_VERTEX_DATA, 0 },
|
|
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->uv), D3D10_INPUT_PER_VERTEX_DATA, 0 },
|
|
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (size_t)(&((ImDrawVert*)0)->col), D3D10_INPUT_PER_VERTEX_DATA, 0 },
|
|
};
|
|
if (g_pd3dDevice->CreateInputLayout(local_layout, 3, g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), &g_pInputLayout) != S_OK)
|
|
return false;
|
|
|
|
// Create the constant buffer
|
|
{
|
|
D3D10_BUFFER_DESC desc;
|
|
desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER);
|
|
desc.Usage = D3D10_USAGE_DYNAMIC;
|
|
desc.BindFlags = D3D10_BIND_CONSTANT_BUFFER;
|
|
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
|
|
desc.MiscFlags = 0;
|
|
g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pVertexConstantBuffer);
|
|
}
|
|
}
|
|
|
|
// Create the pixel shader
|
|
{
|
|
static const char* pixelShader =
|
|
"struct PS_INPUT\
|
|
{\
|
|
float4 pos : SV_POSITION;\
|
|
float4 col : COLOR0;\
|
|
float2 uv : TEXCOORD0;\
|
|
};\
|
|
sampler sampler0;\
|
|
Texture2D texture0;\
|
|
\
|
|
float4 main(PS_INPUT input) : SV_Target\
|
|
{\
|
|
float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
|
|
return out_col; \
|
|
}";
|
|
|
|
D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_4_0", 0, 0, &g_pPixelShaderBlob, NULL);
|
|
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;
|
|
if (g_pd3dDevice->CreatePixelShader((DWORD*)g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize(), &g_pPixelShader) != S_OK)
|
|
return false;
|
|
}
|
|
|
|
// Create the blending setup
|
|
{
|
|
D3D10_BLEND_DESC desc;
|
|
ZeroMemory(&desc, sizeof(desc));
|
|
desc.AlphaToCoverageEnable = false;
|
|
desc.BlendEnable[0] = true;
|
|
desc.SrcBlend = D3D10_BLEND_SRC_ALPHA;
|
|
desc.DestBlend = D3D10_BLEND_INV_SRC_ALPHA;
|
|
desc.BlendOp = D3D10_BLEND_OP_ADD;
|
|
desc.SrcBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
|
|
desc.DestBlendAlpha = D3D10_BLEND_ZERO;
|
|
desc.BlendOpAlpha = D3D10_BLEND_OP_ADD;
|
|
desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;
|
|
g_pd3dDevice->CreateBlendState(&desc, &g_pBlendState);
|
|
}
|
|
|
|
// Create the rasterizer state
|
|
{
|
|
D3D10_RASTERIZER_DESC desc;
|
|
ZeroMemory(&desc, sizeof(desc));
|
|
desc.FillMode = D3D10_FILL_SOLID;
|
|
desc.CullMode = D3D10_CULL_NONE;
|
|
desc.ScissorEnable = true;
|
|
desc.DepthClipEnable = true;
|
|
g_pd3dDevice->CreateRasterizerState(&desc, &g_pRasterizerState);
|
|
}
|
|
|
|
// Create depth-stencil State
|
|
{
|
|
D3D10_DEPTH_STENCIL_DESC desc;
|
|
ZeroMemory(&desc, sizeof(desc));
|
|
desc.DepthEnable = false;
|
|
desc.DepthWriteMask = D3D10_DEPTH_WRITE_MASK_ALL;
|
|
desc.DepthFunc = D3D10_COMPARISON_ALWAYS;
|
|
desc.StencilEnable = false;
|
|
desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D10_STENCIL_OP_KEEP;
|
|
desc.FrontFace.StencilFunc = D3D10_COMPARISON_ALWAYS;
|
|
desc.BackFace = desc.FrontFace;
|
|
g_pd3dDevice->CreateDepthStencilState(&desc, &g_pDepthStencilState);
|
|
}
|
|
|
|
ImGui_ImplDX10_CreateFontsTexture();
|
|
|
|
return true;
|
|
}
|
|
|
|
void ImGui_ImplDX10_InvalidateDeviceObjects()
|
|
{
|
|
if (!g_pd3dDevice)
|
|
return;
|
|
|
|
if (g_pFontSampler) { g_pFontSampler->Release(); g_pFontSampler = NULL; }
|
|
if (g_pFontTextureView) { g_pFontTextureView->Release(); g_pFontTextureView = NULL; ImGui::GetIO().Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
|
|
if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
|
|
if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
|
|
|
|
if (g_pBlendState) { g_pBlendState->Release(); g_pBlendState = NULL; }
|
|
if (g_pDepthStencilState) { g_pDepthStencilState->Release(); g_pDepthStencilState = NULL; }
|
|
if (g_pRasterizerState) { g_pRasterizerState->Release(); g_pRasterizerState = NULL; }
|
|
if (g_pPixelShader) { g_pPixelShader->Release(); g_pPixelShader = NULL; }
|
|
if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; }
|
|
if (g_pVertexConstantBuffer) { g_pVertexConstantBuffer->Release(); g_pVertexConstantBuffer = NULL; }
|
|
if (g_pInputLayout) { g_pInputLayout->Release(); g_pInputLayout = NULL; }
|
|
if (g_pVertexShader) { g_pVertexShader->Release(); g_pVertexShader = NULL; }
|
|
if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; }
|
|
}
|
|
|
|
bool ImGui_ImplDX10_Init(ID3D10Device* device)
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.BackendRendererName = "imgui_impl_dx10";
|
|
|
|
// Get factory from device
|
|
IDXGIDevice* pDXGIDevice = NULL;
|
|
IDXGIAdapter* pDXGIAdapter = NULL;
|
|
IDXGIFactory* pFactory = NULL;
|
|
|
|
if (device->QueryInterface(IID_PPV_ARGS(&pDXGIDevice)) == S_OK)
|
|
if (pDXGIDevice->GetParent(IID_PPV_ARGS(&pDXGIAdapter)) == S_OK)
|
|
if (pDXGIAdapter->GetParent(IID_PPV_ARGS(&pFactory)) == S_OK)
|
|
{
|
|
g_pd3dDevice = device;
|
|
g_pFactory = pFactory;
|
|
}
|
|
if (pDXGIDevice) pDXGIDevice->Release();
|
|
if (pDXGIAdapter) pDXGIAdapter->Release();
|
|
|
|
return true;
|
|
}
|
|
|
|
void ImGui_ImplDX10_Shutdown()
|
|
{
|
|
ImGui_ImplDX10_InvalidateDeviceObjects();
|
|
if (g_pFactory) { g_pFactory->Release(); g_pFactory = NULL; }
|
|
g_pd3dDevice = NULL;
|
|
}
|
|
|
|
void ImGui_ImplDX10_NewFrame()
|
|
{
|
|
if (!g_pFontSampler)
|
|
ImGui_ImplDX10_CreateDeviceObjects();
|
|
}
|