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Diffstat (limited to 'lib/imgui-1.90.7/backends/imgui_impl_dx9.cpp')
| -rw-r--r-- | lib/imgui-1.90.7/backends/imgui_impl_dx9.cpp | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/lib/imgui-1.90.7/backends/imgui_impl_dx9.cpp b/lib/imgui-1.90.7/backends/imgui_impl_dx9.cpp new file mode 100644 index 0000000..3eff9ab --- /dev/null +++ b/lib/imgui-1.90.7/backends/imgui_impl_dx9.cpp @@ -0,0 +1,411 @@ +// dear imgui: Renderer Backend for DirectX9 +// This needs to be used along with a Platform Backend (e.g. Win32) + +// Implemented features: +// [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID! +// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices. + +// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this. +// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need. +// Learn about Dear ImGui: +// - FAQ https://dearimgui.com/faq +// - Getting Started https://dearimgui.com/getting-started +// - Documentation https://dearimgui.com/docs (same as your local docs/ folder). +// - Introduction, links and more at the top of imgui.cpp + +// CHANGELOG +// (minor and older changes stripped away, please see git history for details) +// 2024-02-12: DirectX9: Using RGBA format when supported by the driver to avoid CPU side conversion. (#6575) +// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11. +// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX). +// 2021-06-25: DirectX9: Explicitly disable texture state stages after >= 1. +// 2021-05-19: DirectX9: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement) +// 2021-04-23: DirectX9: Explicitly setting up more graphics states to increase compatibility with unusual non-default states. +// 2021-03-18: DirectX9: Calling IDirect3DStateBlock9::Capture() after CreateStateBlock() as a workaround for state restoring issues (see #3857). +// 2021-03-03: DirectX9: Added support for IMGUI_USE_BGRA_PACKED_COLOR in user's imconfig file. +// 2021-02-18: DirectX9: Change blending equation to preserve alpha in output buffer. +// 2019-05-29: DirectX9: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag. +// 2019-04-30: DirectX9: Added support for special ImDrawCallback_ResetRenderState callback to reset render state. +// 2019-03-29: Misc: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects(). +// 2019-01-16: Misc: Disabled fog before drawing UI's. Fixes issue #2288. +// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window. +// 2018-06-08: Misc: Extracted imgui_impl_dx9.cpp/.h away from the old combined DX9+Win32 example. +// 2018-06-08: DirectX9: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle. +// 2018-05-07: Render: Saving/restoring Transform because they don't seem to be included in the StateBlock. Setting shading mode to Gouraud. +// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX9_RenderDrawData() in the .h file so you can call it yourself. +// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves. + +#include "imgui.h" +#ifndef IMGUI_DISABLE +#include "imgui_impl_dx9.h" + +// DirectX +#include <d3d9.h> + +// DirectX data +struct ImGui_ImplDX9_Data +{ + LPDIRECT3DDEVICE9 pd3dDevice; + LPDIRECT3DVERTEXBUFFER9 pVB; + LPDIRECT3DINDEXBUFFER9 pIB; + LPDIRECT3DTEXTURE9 FontTexture; + int VertexBufferSize; + int IndexBufferSize; + + ImGui_ImplDX9_Data() { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; } +}; + +struct CUSTOMVERTEX +{ + float pos[3]; + D3DCOLOR col; + float uv[2]; +}; +#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1) + +#ifdef IMGUI_USE_BGRA_PACKED_COLOR +#define IMGUI_COL_TO_DX9_ARGB(_COL) (_COL) +#else +#define IMGUI_COL_TO_DX9_ARGB(_COL) (((_COL) & 0xFF00FF00) | (((_COL) & 0xFF0000) >> 16) | (((_COL) & 0xFF) << 16)) +#endif + +// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts +// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts. +static ImGui_ImplDX9_Data* ImGui_ImplDX9_GetBackendData() +{ + return ImGui::GetCurrentContext() ? (ImGui_ImplDX9_Data*)ImGui::GetIO().BackendRendererUserData : nullptr; +} + +// Functions +static void ImGui_ImplDX9_SetupRenderState(ImDrawData* draw_data) +{ + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + + // Setup viewport + D3DVIEWPORT9 vp; + vp.X = vp.Y = 0; + vp.Width = (DWORD)draw_data->DisplaySize.x; + vp.Height = (DWORD)draw_data->DisplaySize.y; + vp.MinZ = 0.0f; + vp.MaxZ = 1.0f; + bd->pd3dDevice->SetViewport(&vp); + + // Setup render state: fixed-pipeline, alpha-blending, no face culling, no depth testing, shade mode (for gradient), bilinear sampling. + bd->pd3dDevice->SetPixelShader(nullptr); + bd->pd3dDevice->SetVertexShader(nullptr); + bd->pd3dDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID); + bd->pd3dDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_GOURAUD); + bd->pd3dDevice->SetRenderState(D3DRS_ZWRITEENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); + bd->pd3dDevice->SetRenderState(D3DRS_ZENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE); + bd->pd3dDevice->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD); + bd->pd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA); + bd->pd3dDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA); + bd->pd3dDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE); + bd->pd3dDevice->SetRenderState(D3DRS_SRCBLENDALPHA, D3DBLEND_ONE); + bd->pd3dDevice->SetRenderState(D3DRS_DESTBLENDALPHA, D3DBLEND_INVSRCALPHA); + bd->pd3dDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, TRUE); + bd->pd3dDevice->SetRenderState(D3DRS_FOGENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_RANGEFOGENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_SPECULARENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_STENCILENABLE, FALSE); + bd->pd3dDevice->SetRenderState(D3DRS_CLIPPING, TRUE); + bd->pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE); + bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE); + bd->pd3dDevice->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_DISABLE); + bd->pd3dDevice->SetTextureStageState(1, D3DTSS_ALPHAOP, D3DTOP_DISABLE); + bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR); + bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR); + + // Setup orthographic projection matrix + // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps. + // Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH() + { + float L = draw_data->DisplayPos.x + 0.5f; + float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x + 0.5f; + float T = draw_data->DisplayPos.y + 0.5f; + float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y + 0.5f; + D3DMATRIX mat_identity = { { { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f } } }; + D3DMATRIX mat_projection = + { { { + 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, + (L+R)/(L-R), (T+B)/(B-T), 0.5f, 1.0f + } } }; + bd->pd3dDevice->SetTransform(D3DTS_WORLD, &mat_identity); + bd->pd3dDevice->SetTransform(D3DTS_VIEW, &mat_identity); + bd->pd3dDevice->SetTransform(D3DTS_PROJECTION, &mat_projection); + } +} + +// Render function. +void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data) +{ + // Avoid rendering when minimized + if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f) + return; + + // Create and grow buffers if needed + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount) + { + if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; } + bd->VertexBufferSize = draw_data->TotalVtxCount + 5000; + if (bd->pd3dDevice->CreateVertexBuffer(bd->VertexBufferSize * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &bd->pVB, nullptr) < 0) + return; + } + if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount) + { + if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; } + bd->IndexBufferSize = draw_data->TotalIdxCount + 10000; + if (bd->pd3dDevice->CreateIndexBuffer(bd->IndexBufferSize * sizeof(ImDrawIdx), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, sizeof(ImDrawIdx) == 2 ? D3DFMT_INDEX16 : D3DFMT_INDEX32, D3DPOOL_DEFAULT, &bd->pIB, nullptr) < 0) + return; + } + + // Backup the DX9 state + IDirect3DStateBlock9* d3d9_state_block = nullptr; + if (bd->pd3dDevice->CreateStateBlock(D3DSBT_ALL, &d3d9_state_block) < 0) + return; + if (d3d9_state_block->Capture() < 0) + { + d3d9_state_block->Release(); + return; + } + + // Backup the DX9 transform (DX9 documentation suggests that it is included in the StateBlock but it doesn't appear to) + D3DMATRIX last_world, last_view, last_projection; + bd->pd3dDevice->GetTransform(D3DTS_WORLD, &last_world); + bd->pd3dDevice->GetTransform(D3DTS_VIEW, &last_view); + bd->pd3dDevice->GetTransform(D3DTS_PROJECTION, &last_projection); + + // Allocate buffers + CUSTOMVERTEX* vtx_dst; + ImDrawIdx* idx_dst; + if (bd->pVB->Lock(0, (UINT)(draw_data->TotalVtxCount * sizeof(CUSTOMVERTEX)), (void**)&vtx_dst, D3DLOCK_DISCARD) < 0) + { + d3d9_state_block->Release(); + return; + } + if (bd->pIB->Lock(0, (UINT)(draw_data->TotalIdxCount * sizeof(ImDrawIdx)), (void**)&idx_dst, D3DLOCK_DISCARD) < 0) + { + bd->pVB->Unlock(); + d3d9_state_block->Release(); + return; + } + + // Copy and convert all vertices into a single contiguous buffer, convert colors to DX9 default format. + // FIXME-OPT: This is a minor waste of resource, the ideal is to use imconfig.h and + // 1) to avoid repacking colors: #define IMGUI_USE_BGRA_PACKED_COLOR + // 2) to avoid repacking vertices: #define IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT struct ImDrawVert { ImVec2 pos; float z; ImU32 col; ImVec2 uv; } + for (int n = 0; n < draw_data->CmdListsCount; n++) + { + const ImDrawList* cmd_list = draw_data->CmdLists[n]; + const ImDrawVert* vtx_src = cmd_list->VtxBuffer.Data; + for (int i = 0; i < cmd_list->VtxBuffer.Size; i++) + { + vtx_dst->pos[0] = vtx_src->pos.x; + vtx_dst->pos[1] = vtx_src->pos.y; + vtx_dst->pos[2] = 0.0f; + vtx_dst->col = IMGUI_COL_TO_DX9_ARGB(vtx_src->col); + vtx_dst->uv[0] = vtx_src->uv.x; + vtx_dst->uv[1] = vtx_src->uv.y; + vtx_dst++; + vtx_src++; + } + memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx)); + idx_dst += cmd_list->IdxBuffer.Size; + } + bd->pVB->Unlock(); + bd->pIB->Unlock(); + bd->pd3dDevice->SetStreamSource(0, bd->pVB, 0, sizeof(CUSTOMVERTEX)); + bd->pd3dDevice->SetIndices(bd->pIB); + bd->pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX); + + // Setup desired DX state + ImGui_ImplDX9_SetupRenderState(draw_data); + + // Render command lists + // (Because we merged all buffers into a single one, we maintain our own offset into them) + int global_vtx_offset = 0; + int global_idx_offset = 0; + ImVec2 clip_off = 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 != nullptr) + { + // User callback, registered via ImDrawList::AddCallback() + // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.) + if (pcmd->UserCallback == ImDrawCallback_ResetRenderState) + ImGui_ImplDX9_SetupRenderState(draw_data); + else + pcmd->UserCallback(cmd_list, pcmd); + } + else + { + // Project scissor/clipping rectangles into framebuffer space + ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y); + ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y); + if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y) + continue; + + // Apply Scissor/clipping rectangle, Bind texture, Draw + const RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y }; + const LPDIRECT3DTEXTURE9 texture = (LPDIRECT3DTEXTURE9)pcmd->GetTexID(); + bd->pd3dDevice->SetTexture(0, texture); + bd->pd3dDevice->SetScissorRect(&r); + bd->pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, pcmd->VtxOffset + global_vtx_offset, 0, (UINT)cmd_list->VtxBuffer.Size, pcmd->IdxOffset + global_idx_offset, pcmd->ElemCount / 3); + } + } + global_idx_offset += cmd_list->IdxBuffer.Size; + global_vtx_offset += cmd_list->VtxBuffer.Size; + } + + // Restore the DX9 transform + bd->pd3dDevice->SetTransform(D3DTS_WORLD, &last_world); + bd->pd3dDevice->SetTransform(D3DTS_VIEW, &last_view); + bd->pd3dDevice->SetTransform(D3DTS_PROJECTION, &last_projection); + + // Restore the DX9 state + d3d9_state_block->Apply(); + d3d9_state_block->Release(); +} + +bool ImGui_ImplDX9_Init(IDirect3DDevice9* device) +{ + ImGuiIO& io = ImGui::GetIO(); + IMGUI_CHECKVERSION(); + IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!"); + + // Setup backend capabilities flags + ImGui_ImplDX9_Data* bd = IM_NEW(ImGui_ImplDX9_Data)(); + io.BackendRendererUserData = (void*)bd; + io.BackendRendererName = "imgui_impl_dx9"; + io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes. + + bd->pd3dDevice = device; + bd->pd3dDevice->AddRef(); + + return true; +} + +void ImGui_ImplDX9_Shutdown() +{ + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?"); + ImGuiIO& io = ImGui::GetIO(); + + ImGui_ImplDX9_InvalidateDeviceObjects(); + if (bd->pd3dDevice) { bd->pd3dDevice->Release(); } + io.BackendRendererName = nullptr; + io.BackendRendererUserData = nullptr; + io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset; + IM_DELETE(bd); +} + +static bool ImGui_ImplDX9_CheckFormatSupport(IDirect3DDevice9* pDevice, D3DFORMAT format) +{ + IDirect3D9* pd3d = nullptr; + if (pDevice->GetDirect3D(&pd3d) != D3D_OK) + return false; + D3DDEVICE_CREATION_PARAMETERS param = {}; + D3DDISPLAYMODE mode = {}; + if (pDevice->GetCreationParameters(¶m) != D3D_OK || pDevice->GetDisplayMode(0, &mode) != D3D_OK) + { + pd3d->Release(); + return false; + } + // Font texture should support linear filter, color blend and write to render-target + bool support = (pd3d->CheckDeviceFormat(param.AdapterOrdinal, param.DeviceType, mode.Format, D3DUSAGE_DYNAMIC | D3DUSAGE_QUERY_FILTER | D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, D3DRTYPE_TEXTURE, format)) == D3D_OK; + pd3d->Release(); + return support; +} + +static bool ImGui_ImplDX9_CreateFontsTexture() +{ + // Build texture atlas + ImGuiIO& io = ImGui::GetIO(); + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + unsigned char* pixels; + int width, height, bytes_per_pixel; + io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &bytes_per_pixel); + + // Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices) +#ifndef IMGUI_USE_BGRA_PACKED_COLOR + const bool rgba_support = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8); + if (!rgba_support && io.Fonts->TexPixelsUseColors) + { + ImU32* dst_start = (ImU32*)ImGui::MemAlloc((size_t)width * height * bytes_per_pixel); + for (ImU32* src = (ImU32*)pixels, *dst = dst_start, *dst_end = dst_start + (size_t)width * height; dst < dst_end; src++, dst++) + *dst = IMGUI_COL_TO_DX9_ARGB(*src); + pixels = (unsigned char*)dst_start; + } +#else + const bool rgba_support = false; +#endif + + // Upload texture to graphics system + bd->FontTexture = nullptr; + if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, rgba_support ? D3DFMT_A8B8G8R8 : D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, nullptr) < 0) + return false; + D3DLOCKED_RECT tex_locked_rect; + if (bd->FontTexture->LockRect(0, &tex_locked_rect, nullptr, 0) != D3D_OK) + return false; + for (int y = 0; y < height; y++) + memcpy((unsigned char*)tex_locked_rect.pBits + (size_t)tex_locked_rect.Pitch * y, pixels + (size_t)width * bytes_per_pixel * y, (size_t)width * bytes_per_pixel); + bd->FontTexture->UnlockRect(0); + + // Store our identifier + io.Fonts->SetTexID((ImTextureID)bd->FontTexture); + +#ifndef IMGUI_USE_BGRA_PACKED_COLOR + if (!rgba_support && io.Fonts->TexPixelsUseColors) + ImGui::MemFree(pixels); +#endif + + return true; +} + +bool ImGui_ImplDX9_CreateDeviceObjects() +{ + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + if (!bd || !bd->pd3dDevice) + return false; + if (!ImGui_ImplDX9_CreateFontsTexture()) + return false; + return true; +} + +void ImGui_ImplDX9_InvalidateDeviceObjects() +{ + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + if (!bd || !bd->pd3dDevice) + return; + if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; } + if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; } + if (bd->FontTexture) { bd->FontTexture->Release(); bd->FontTexture = nullptr; ImGui::GetIO().Fonts->SetTexID(0); } // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well. +} + +void ImGui_ImplDX9_NewFrame() +{ + ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); + IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX9_Init()?"); + + if (!bd->FontTexture) + ImGui_ImplDX9_CreateDeviceObjects(); +} + +//----------------------------------------------------------------------------- + +#endif // #ifndef IMGUI_DISABLE |