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Backends: Cleanup, removed unnecessary create/destroy wrappers. Fix allegro5 backend + use same code as other backend.

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+ Update gallery links (#4280)
This commit is contained in:
ocornut
2021-06-30 15:22:15 +02:00
parent 6792e1a3e0
commit cf2daf353e
13 changed files with 129 additions and 121 deletions
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23
backends/imgui_impl_dx11.cpp
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@ -63,17 +63,18 @@ struct ImGui_ImplDX11_Data
ImGui_ImplDX11_Data() { memset(this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
};
// 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_ImplDX11_Data* ImGui_ImplDX11_CreateBackendData() { return IM_NEW(ImGui_ImplDX11_Data)(); }
static ImGui_ImplDX11_Data* ImGui_ImplDX11_GetBackendData() { return (ImGui_ImplDX11_Data*)ImGui::GetIO().BackendRendererUserData; }
static void ImGui_ImplDX11_DestroyBackendData() { IM_DELETE(ImGui_ImplDX11_GetBackendData()); }
struct VERTEX_CONSTANT_BUFFER
{
float mvp[4][4];
};
// 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_ImplDX11_Data* ImGui_ImplDX11_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplDX11_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Functions
static void ImGui_ImplDX11_SetupRenderState(ImDrawData* draw_data, ID3D11DeviceContext* ctx)
{
@ -536,7 +537,7 @@ bool ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_co
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_CreateBackendData();
ImGui_ImplDX11_Data* bd = IM_NEW(ImGui_ImplDX11_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_dx11";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
@ -568,12 +569,12 @@ void ImGui_ImplDX11_Shutdown()
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
ImGui_ImplDX11_InvalidateDeviceObjects();
if (bd->pFactory) { bd->pFactory->Release(); bd->pFactory = NULL; }
if (bd->pd3dDevice) { bd->pd3dDevice->Release(); bd->pd3dDevice = NULL; }
if (bd->pd3dDeviceContext) { bd->pd3dDeviceContext->Release(); bd->pd3dDeviceContext = NULL; }
if (bd->pFactory) { bd->pFactory->Release(); }
if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
if (bd->pd3dDeviceContext) { bd->pd3dDeviceContext->Release(); }
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
ImGui_ImplDX11_DestroyBackendData();
IM_DELETE(bd);
}
void ImGui_ImplDX11_NewFrame()