main.cpp (1)

28-28: Concrete PipelineWrapper member simplifies usage; ensure copy/move semantics are as intended

Switching from an optional to a concrete sopho::PipelineWrapper constructed via gpu_wrapper->create_pipeline() and then using it directly in init()/iterate() is a nice simplification—no more has_value()/-> indirection and the pipeline is always initialized before use.

Given that PipelineWrapper is returned by value from GpuWrapper::create_pipeline() and owns GPU resources, this pattern relies on the copy/move behavior of PipelineWrapper. To avoid surprises, it’s worth aligning this with the suggestion in sdl_wrapper/sdl_wrapper.pipeline.ixx (explicitly delete copies and, if needed, enable moves) and then ensuring you don’t inadvertently copy pipeline_wrapper elsewhere.

Once you lock down those semantics in the wrapper type, the usage here is straightforward and robust.

Also applies to: 74-76, 154-154, 163-163, 195-195

sdl_wrapper/sdl_wrapper.gpu.ixx (2)

8-8: Window member and teardown ordering look good; add a small guard for robustness

The added SDL_Window* m_window plus inclusion of the video header and the destructor’s order of operations (release-from-device, then destroy window, then destroy device) are all sensible and keep window/device lifetimes consistent.

To be a bit more defensive in failure cases (e.g. device creation failed but a window was somehow created later), consider guarding the release call on m_device as well, mirroring the later if (m_device):

        ~GpuWrapper()
        {
            if (m_window)
            {
-                SDL_ReleaseWindowFromGPUDevice(m_device, m_window);
+                if (m_device)
+                {
+                    SDL_ReleaseWindowFromGPUDevice(m_device, m_window);
+                }
                 SDL_DestroyWindow(m_window);
            }
            if (m_device)
            {
                SDL_DestroyGPUDevice(m_device);
            }
            m_device = nullptr;
        }

This keeps behavior unchanged in the normal path while avoiding calling SDL with a null device pointer in edge cases.

Also applies to: 19-21, 31-37

---

74-82: Tighten acquire_window() API surface (return by value instead of non-const reference)

acquire_window() currently returns a non-const reference to the internal SDL_Window*, which lets callers accidentally reassign m_window and break invariants inside GpuWrapper.

You can keep behavior identical while tightening encapsulation by returning the pointer by value:

-        auto& acquire_window()
+        SDL_Window* acquire_window()
         {
             if (!m_window)
             {
                 m_window = SDL_CreateWindow("Hello, Triangle!", 960, 540, SDL_WINDOW_RESIZABLE);
                 SDL_ClaimWindowForGPUDevice(m_device, m_window);
             }
             return m_window;
         }

Call sites that currently pass gpu_wrapper->acquire_window() to SDL/ImGui APIs will continue to compile unchanged.

sdl_wrapper/sdl_wrapper.pipeline.ixx (1)

29-40: Constructor access restriction is good; consider making PipelineWrapper explicitly non-copyable (or move-only)

Making the PipelineWrapper(std::shared_ptr<GpuWrapper>) constructor private and friending GpuWrapper nicely centralizes pipeline creation in the GPU wrapper.

However, with only a user-defined destructor and no explicit copy/move declarations, PipelineWrapper is still copyable by default while move operations are suppressed. If PipelineWrapper owns the SDL_GPUGraphicsPipeline* and releases it in the destructor, accidental copies could lead to subtle lifetime issues.

Consider making ownership explicit, e.g.:

    class PipelineWrapper
    {
        SDL_GPUGraphicsPipeline* m_graphics_pipeline{};
        std::shared_ptr<GpuWrapper> m_device{};
        // ...

        bool m_modified = false;

        PipelineWrapper(std::shared_ptr<GpuWrapper> p_device);
    public:
+       PipelineWrapper(const PipelineWrapper&) = delete;
+       PipelineWrapper& operator=(const PipelineWrapper&) = delete;
+
+       PipelineWrapper(PipelineWrapper&&) = default;
+       PipelineWrapper& operator=(PipelineWrapper&&) = default;

This keeps construction restricted to GpuWrapper while preventing accidental copies and allowing move semantics if you need them later.

main.cpp (1)

104-104: Good use of acquire_window(); consider also using GpuWrapper::get_texture_format()

Routing ImGui and swapchain acquisition through gpu_wrapper->acquire_window() nicely reflects the new window ownership model in GpuWrapper and avoids carrying a raw SDL_Window* in UserApp.

Since GpuWrapper now exposes get_texture_format(), you can also avoid duplicating the device+window pairing logic when setting init_info.ColorTargetFormat:

-        ImGui_ImplSDL3_InitForSDLGPU(gpu_wrapper->acquire_window());
-        ImGui_ImplSDLGPU3_InitInfo init_info = {};
-        init_info.Device = gpu_wrapper->data();
-        init_info.ColorTargetFormat =
-            SDL_GetGPUSwapchainTextureFormat(gpu_wrapper->data(), gpu_wrapper->acquire_window());
+        ImGui_ImplSDL3_InitForSDLGPU(gpu_wrapper->acquire_window());
+        ImGui_ImplSDLGPU3_InitInfo init_info = {};
+        init_info.Device = gpu_wrapper->data();
+        init_info.ColorTargetFormat = gpu_wrapper->get_texture_format();

The later SDL_WaitAndAcquireGPUSwapchainTexture(commandBuffer, gpu_wrapper->acquire_window(), ...) call already cleanly uses the wrapper, so this keeps all swapchain/window handling consistently funneled through GpuWrapper.

Also applies to: 107-108, 171-172

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.gpu.ixx:73-76
Timestamp: 2025-11-14T00:45:09.377Z
Learning: In sdl_wrapper/sdl_wrapper.gpu.ixx, validation for m_window in the GpuWrapper::get_texture_formate() method (checking if m_window is nullptr before calling SDL_GetGPUSwapchainTextureFormat) is deferred to a future window wrapper implementation and should not be flagged in reviews.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.gpu.ixx:37-43
Timestamp: 2025-11-13T11:35:48.273Z
Learning: In sdl_wrapper/sdl_wrapper.gpu.ixx, null pointer validation for the GpuWrapper::create_buffer method (checking m_device, SDL_CreateGPUBuffer return value, and shared_from_this() validity) is deferred to a future issue and should not be flagged in reviews.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.buffer.ixx:0-0
Timestamp: 2025-11-13T11:34:32.714Z
Learning: In sdl_wrapper/sdl_wrapper.buffer.ixx, null pointer validation for the BufferWrapper constructor (checking p_gpu, p_gpu->data(), and SDL_CreateGPUBuffer return value) is deferred to a future issue and should not be flagged in reviews.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.gpu.ixx:0-0
Timestamp: 2025-11-13T02:58:26.859Z
Learning: The sdl_wrapper library (in the repository WSQS/sdl_test) does not allow throwing exceptions. Error handling must use return codes, validity checks, or other non-exception mechanisms.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.gpu.ixx:73-76
Timestamp: 2025-11-14T00:45:09.377Z
Learning: In sdl_wrapper/sdl_wrapper.gpu.ixx, validation for m_window in the GpuWrapper::get_texture_formate() method (checking if m_window is nullptr before calling SDL_GetGPUSwapchainTextureFormat) is deferred to a future window wrapper implementation and should not be flagged in reviews.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.gpu.ixx:37-43
Timestamp: 2025-11-13T11:35:48.273Z
Learning: In sdl_wrapper/sdl_wrapper.gpu.ixx, null pointer validation for the GpuWrapper::create_buffer method (checking m_device, SDL_CreateGPUBuffer return value, and shared_from_this() validity) is deferred to a future issue and should not be flagged in reviews.

Learnt from: WSQS
Repo: WSQS/sdl_test PR: 7
File: sdl_wrapper/sdl_wrapper.buffer.ixx:0-0
Timestamp: 2025-11-13T11:34:32.714Z
Learning: In sdl_wrapper/sdl_wrapper.buffer.ixx, null pointer validation for the BufferWrapper constructor (checking p_gpu, p_gpu->data(), and SDL_CreateGPUBuffer return value) is deferred to a future issue and should not be flagged in reviews.