Update .gitignore and CMakeLists.txt for backend configurations; enhance cimgui_impl_sdlgpu3 API with new shader functions

Author: JunaMeinhold

.gitignore

@@ -39,3 +39,7 @@ cimgui/x64/
 # Test / Build
 bld/
 build/
+
+# Visual Studio
+.vs
+.vscode

CMakeLists.txt

@@ -68,6 +68,7 @@ endif()
 if (BACKENDS_NO_BASE)
 	set(BACKENDS_WIN32 OFF)
 	set(BACKENDS_OSX OFF)
+	set(BACKENDS_ANDROID OFF)
 	set(BACKENDS_NO_GRAPHICS ON)
 endif()
 
@@ -108,9 +109,6 @@ elseif(ANDROID)
 	set(BACKENDS_WIN32 OFF)
 	set(BACKENDS_OPENGL2 OFF)
 	set(BACKENDS_VULKAN OFF) # Too complicated at the moment maybe adding it later.
-	set(BACKENDS_GLFW OFF)
-	set(BACKENDS_SDL2 OFF)
-	set(BACKENDS_SDL3 OFF)
 	set(BACKENDS_METAL OFF)
 	set(BACKENDS_OSX OFF)
 

include/cimgui_config.h

@@ -34,6 +34,10 @@ typedef unsigned __int64 ImU64;
 // typedef unsigned long long ImU64;
 #endif
 
+#ifdef __APPLE__
+#define TARGET_OS_MAC 1
+#endif // __APPLE__
+
 #include "imgui.h"
 #ifdef CIMGUI_FREETYPE
 #include "misc/freetype/imgui_freetype.h"

include/cimgui_impl_sdlgpu3.h

@@ -37,7 +37,10 @@ CIMGUI_API void CImGui_ImplSDLGPU3_DestroyDeviceObjects();
 CIMGUI_API void CImGui_ImplSDLGPU3_GetSPIRVVertexShader(const void** ptr, size_t* size);
 CIMGUI_API void CImGui_ImplSDLGPU3_GetSPIRVFragmentShader(const void** ptr, size_t* size);
 CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCVertexShader(const void** ptr, size_t* size);
-CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCPixelShader(const void** ptr, size_t* size);
+CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCFragmentShader(const void** ptr, size_t* size);
+CIMGUI_API void CImGui_ImplSDLGPU3_GetMetallibVertexShader(const void** ptr, size_t* size);
+CIMGUI_API void CImGui_ImplSDLGPU3_GetMetallibFragmentShader(const void** ptr, size_t* size);
+
 #endif // CIMGUI_USE_SDLGPU3
 
 #endif // CIMGUI_IMPL_SDLGPU3_H

src/cimgui_impl_sdlgpu3.cpp

@@ -29,7 +29,6 @@ CIMGUI_API void CImGui_ImplSDLGPU3_DestroyDeviceObjects()
     ImGui_ImplSDLGPU3_DestroyDeviceObjects();
 }
 
-// Shader pointer/size C API (merged signature)
 CIMGUI_API void CImGui_ImplSDLGPU3_GetSPIRVVertexShader(const void** ptr, size_t* size) 
 {
     if (ptr) *ptr = (const void*)spirv_vertex;
@@ -45,8 +44,30 @@ CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCVertexShader(const void** ptr, size_t*
     if (ptr) *ptr = (const void*)dxbc_vertex;
     if (size) *size = sizeof(dxbc_vertex);
 }
-CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCPixelShader(const void** ptr, size_t* size) 
+CIMGUI_API void CImGui_ImplSDLGPU3_GetDXBCFragmentShader(const void** ptr, size_t* size) 
 {
-    if (ptr) *ptr = (const void*)dxbc_pixel;
-    if (size) *size = sizeof(dxbc_pixel);
+    if (ptr) *ptr = (const void*)dxbc_fragment;
+    if (size) *size = sizeof(dxbc_fragment);
+}
+
+CIMGUI_API void CImGui_ImplSDLGPU3_GetMetallibVertexShader(const void **ptr, size_t *size)
+{
+#ifdef __APPLE__
+    if (ptr) *ptr = (const void*)metallib_vertex;
+    if (size) *size = sizeof(metallib_vertex);
+#else
+    if (ptr) *ptr = nullptr;
+    if (size) *size = 0;
+#endif
+}
+
+CIMGUI_API void CImGui_ImplSDLGPU3_GetMetallibFragmentShader(const void **ptr, size_t *size)
+{
+#ifdef __APPLE__
+    if (ptr) *ptr = (const void*)metallib_fragment;
+    if (size) *size = sizeof(metallib_fragment);
+#else
+    if (ptr) *ptr = nullptr;
+    if (size) *size = 0;
+#endif
 }