Fix particle sizes, and add tools for comparing renderers

Particles: Direct3D 9's size limit evidently isn't the documented 64 pixels; unclamped (up to 2048) they match the client's renderer. A compare view shows the left half's scene over the right half, both renderers side by side; %TEMP%\t5de-renderer-view.txt switches views and %TEMP%\t5de-renderer-shaders\fixed_function.hlsl replaces the shaders while the client runs. The renderer process runs from a copy, so the program can be replaced meanwhile. The adapter recognizes only the textures and buffers it made (others reach the client renderer unchanged) and logs the others and render targets.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

adapter/resources.hpp

@@ -62,30 +62,34 @@ private:
     std::uint32_t id_;
 };
 
-// The client renderer's object and our id for something the engine made; null and 0 for null.
+// Whether an object is one of ours (live Texture, IndexBuffer or VertexBuffer): the client can also hand the engine
+// objects the client renderer made itself (render targets' textures), which must reach it unchanged.
+bool ours(const void* object);
+
+// The client renderer's object, and our id, for what the client passes in: ours unwrapped, others unchanged (id 0).
 inline imvu::PiRenderTexture* inner(imvu::PiRenderTexture* texture)
 {
-    return texture != nullptr ? static_cast<Texture*>(texture)->inner() : nullptr;
+    return ours(texture) ? static_cast<Texture*>(texture)->inner() : texture;
 }
 inline std::uint32_t id(imvu::PiRenderTexture* texture)
 {
-    return texture != nullptr ? static_cast<Texture*>(texture)->id() : 0;
+    return ours(texture) ? static_cast<Texture*>(texture)->id() : 0;
 }
 inline imvu::PiInternalIndexBuffer* inner(imvu::PiInternalIndexBuffer* buffer)
 {
-    return buffer != nullptr ? static_cast<IndexBuffer*>(buffer)->inner() : nullptr;
+    return ours(buffer) ? static_cast<IndexBuffer*>(buffer)->inner() : buffer;
 }
 inline std::uint32_t id(imvu::PiInternalIndexBuffer* buffer)
 {
-    return buffer != nullptr ? static_cast<IndexBuffer*>(buffer)->id() : 0;
+    return ours(buffer) ? static_cast<IndexBuffer*>(buffer)->id() : 0;
 }
 inline imvu::PiInternalVertexBuffer* inner(imvu::PiInternalVertexBuffer* buffer)
 {
-    return buffer != nullptr ? static_cast<VertexBuffer*>(buffer)->inner() : nullptr;
+    return ours(buffer) ? static_cast<VertexBuffer*>(buffer)->inner() : buffer;
 }
 inline std::uint32_t id(imvu::PiInternalVertexBuffer* buffer)
 {
-    return buffer != nullptr ? static_cast<VertexBuffer*>(buffer)->id() : 0;
+    return ours(buffer) ? static_cast<VertexBuffer*>(buffer)->id() : 0;
 }
 
 } // namespace t5de