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Backends: Fixed various warnings discovered when using MinGW GCC 15/Clang on latest backends.

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dx12: 'ImGui_ImplDX12_Data* bd' shadowed local in spite of being in lambda.
This commit is contained in:
ocornut
2025-06-20 14:46:32 +02:00
parent 2f9c518ca8
commit e97e55adbc
12 changed files with 66 additions and 25 deletions
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6
backends/imgui_impl_dx10.cpp
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@@ -50,6 +50,12 @@
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// DirectX10 data
struct ImGui_ImplDX10_Texture
{

6
backends/imgui_impl_dx11.cpp
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@@ -52,6 +52,12 @@
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// DirectX11 data
struct ImGui_ImplDX11_Texture
{

47
backends/imgui_impl_dx12.cpp
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@@ -62,6 +62,12 @@
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// MinGW workaround, see #4594
typedef decltype(D3D12SerializeRootSignature) *_PFN_D3D12_SERIALIZE_ROOT_SIGNATURE;
@@ -800,6 +806,28 @@ void ImGui_ImplDX12_InvalidateDeviceObjects()
}
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
static void ImGui_ImplDX12_InitLegacySingleDescriptorMode(ImGui_ImplDX12_InitInfo* init_info)
{
// Wrap legacy behavior of passing space for a single descriptor
IM_ASSERT(init_info->LegacySingleSrvCpuDescriptor.ptr != 0 && init_info->LegacySingleSrvGpuDescriptor.ptr != 0);
init_info->SrvDescriptorAllocFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_handle)
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd->LegacySingleDescriptorUsed == false && "Only 1 simultaneous texture allowed with legacy ImGui_ImplDX12_Init() signature!");
*out_cpu_handle = bd->InitInfo.LegacySingleSrvCpuDescriptor;
*out_gpu_handle = bd->InitInfo.LegacySingleSrvGpuDescriptor;
bd->LegacySingleDescriptorUsed = true;
};
init_info->SrvDescriptorFreeFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE, D3D12_GPU_DESCRIPTOR_HANDLE)
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd->LegacySingleDescriptorUsed == true);
bd->LegacySingleDescriptorUsed = false;
};
}
#endif
bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
{
ImGuiIO& io = ImGui::GetIO();
@@ -826,24 +854,7 @@ bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
if (init_info->SrvDescriptorAllocFn == nullptr)
{
// Wrap legacy behavior of passing space for a single descriptor
IM_ASSERT(init_info->LegacySingleSrvCpuDescriptor.ptr != 0 && init_info->LegacySingleSrvGpuDescriptor.ptr != 0);
init_info->SrvDescriptorAllocFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_handle)
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd->LegacySingleDescriptorUsed == false && "Only 1 simultaneous texture allowed with legacy ImGui_ImplDX12_Init() signature!");
*out_cpu_handle = bd->InitInfo.LegacySingleSrvCpuDescriptor;
*out_gpu_handle = bd->InitInfo.LegacySingleSrvGpuDescriptor;
bd->LegacySingleDescriptorUsed = true;
};
init_info->SrvDescriptorFreeFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE, D3D12_GPU_DESCRIPTOR_HANDLE)
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd->LegacySingleDescriptorUsed == true);
bd->LegacySingleDescriptorUsed = false;
};
}
ImGui_ImplDX12_InitLegacySingleDescriptorMode(init_info);
#endif
IM_ASSERT(init_info->SrvDescriptorAllocFn != nullptr && init_info->SrvDescriptorFreeFn != nullptr);

10
backends/imgui_impl_dx9.cpp
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@@ -46,6 +46,12 @@
// DirectX
#include <d3d9.h>
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// DirectX data
struct ImGui_ImplDX9_Data
{
@@ -368,8 +374,8 @@ static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* sr
#endif
for (int y = 0; y < h; y++)
{
ImU32* src_p = (ImU32*)((unsigned char*)src + src_pitch * y);
ImU32* dst_p = (ImU32*)((unsigned char*)dst + dst_pitch * y);
const ImU32* src_p = (const ImU32*)(void*)((const unsigned char*)src + src_pitch * y);
ImU32* dst_p = (ImU32*)(void*)((unsigned char*)dst + dst_pitch * y);
if (convert_rgba_to_bgra)
for (int x = w; x > 0; x--, src_p++, dst_p++) // Convert copy
*dst_p = IMGUI_COL_TO_DX9_ARGB(*src_p);

1
backends/imgui_impl_glfw.cpp
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@@ -545,6 +545,7 @@ static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wPara
case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK: case WM_XBUTTONUP:
io.AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo());
break;
default: break;
}
return ::CallWindowProcW(bd->PrevWndProc, hWnd, msg, wParam, lParam);
}

5
backends/imgui_impl_sdl2.cpp
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@@ -104,6 +104,7 @@
// Clang warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#endif
@@ -434,7 +435,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
// (event->type == SDL_KEYDOWN) ? "DOWN" : "UP ", event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym), event->key.keysym.scancode, SDL_GetScancodeName(event->key.keysym.scancode), event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL2_KeyEventToImGuiKey(event->key.keysym.sym, event->key.keysym.scancode);
io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
io.SetKeyEventNativeData(key, (int)event->key.keysym.sym, (int)event->key.keysym.scancode, (int)event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_WINDOWEVENT:
@@ -466,6 +467,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
bd->WantUpdateGamepadsList = true;
return true;
}
default:
break;
}
return false;
}

7
backends/imgui_impl_sdl3.cpp
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@@ -64,6 +64,7 @@
// Clang warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#endif
@@ -409,7 +410,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
// (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP ", event->key.key, SDL_GetKeyName(event->key.key), event->key.scancode, SDL_GetScancodeName(event->key.scancode), event->key.mod);
ImGuiKey key = ImGui_ImplSDL3_KeyEventToImGuiKey(event->key.key, event->key.scancode);
io.AddKeyEvent(key, (event->type == SDL_EVENT_KEY_DOWN));
io.SetKeyEventNativeData(key, event->key.key, event->key.scancode, event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
io.SetKeyEventNativeData(key, (int)event->key.key, (int)event->key.scancode, (int)event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_EVENT_WINDOW_MOUSE_ENTER:
@@ -445,6 +446,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
bd->WantUpdateGamepadsList = true;
return true;
}
default:
break;
}
return false;
}
@@ -471,7 +474,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
// Setup backend capabilities flags
ImGui_ImplSDL3_Data* bd = IM_NEW(ImGui_ImplSDL3_Data)();
snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl3 (%u.%u.%u; %u.%u.%u)",
snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl3 (%d.%d.%d; %d.%d.%d)",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_MICRO_VERSION, SDL_VERSIONNUM_MAJOR(ver_linked), SDL_VERSIONNUM_MINOR(ver_linked), SDL_VERSIONNUM_MICRO(ver_linked));
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = bd->BackendPlatformName;

2
backends/imgui_impl_sdlrenderer2.cpp
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@@ -44,6 +44,8 @@
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wfloat-equal" // warning: comparing floating-point with '==' or '!=' is unsafe
#endif
// SDL

2
backends/imgui_impl_sdlrenderer3.cpp
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@@ -41,6 +41,8 @@
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wfloat-equal" // warning: comparing floating-point with '==' or '!=' is unsafe
#endif
// SDL

2
backends/imgui_impl_vulkan.cpp
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@@ -1250,7 +1250,7 @@ void ImGui_ImplVulkan_Shutdown()
ImGui_ImplVulkan_DestroyDeviceObjects();
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
IM_FREE((void*)bd->VulkanInitInfo.PipelineRenderingCreateInfo.pColorAttachmentFormats);
IM_FREE((void*)const_cast<VkFormat*>(bd->VulkanInitInfo.PipelineRenderingCreateInfo.pColorAttachmentFormats));
#endif
io.BackendRendererName = nullptr;

1
backends/imgui_impl_win32.cpp
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@@ -571,6 +571,7 @@ ImGuiKey ImGui_ImplWin32_KeyEventToImGuiKey(WPARAM wParam, LPARAM lParam)
case 51: return ImGuiKey_Comma;
case 52: return ImGuiKey_Period;
case 53: return ImGuiKey_Slash;
default: break;
}
return ImGuiKey_None;

2
imgui_demo.cpp
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@@ -8146,7 +8146,7 @@ void ImGui::ShowAboutWindow(bool* p_open)
if (io.BackendFlags & ImGuiBackendFlags_RendererHasTextures) ImGui::Text(" RendererHasTextures");
ImGui::Separator();
ImGui::Text("io.Fonts: %d fonts, Flags: 0x%08X, TexSize: %d,%d", io.Fonts->Fonts.Size, io.Fonts->Flags, io.Fonts->TexData->Width, io.Fonts->TexData->Height);
ImGui::Text("io.Fonts->FontLoaderName: \"%s\"", io.Fonts->FontLoaderName ? io.Fonts->FontLoaderName : "NULL");
ImGui::Text("io.Fonts->FontLoaderName: %s", io.Fonts->FontLoaderName ? io.Fonts->FontLoaderName : "NULL");
ImGui::Text("io.DisplaySize: %.2f,%.2f", io.DisplaySize.x, io.DisplaySize.y);
ImGui::Text("io.DisplayFramebufferScale: %.2f,%.2f", io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
ImGui::Separator();