Files
t5de-renderer/adapter/plugin.cpp
T
dhkatzandClaude Opus 5.5 2d9da249fa
CI / build (push) Failing after 0s
Draw the whole 3D view in place of the client's renderer
The full view is now the default. While the renderer process covers the whole
view (Channel::covering, set after each frame it presents), the adapter skips
the client's renderer's clears and draws, decided per frame; the client's
renderer still gets state and resources, and draws again as soon as the
renderer process stops covering the view.

The client's window no longer gets WS_CLIPCHILDREN: the client draws when its
window gets WM_PAINT, which a window entirely covered by clipped children never
gets (it fell to about one frame a second). The flip model swap chain shows
above the client's drawing anyway.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-28 18:14:17 -07:00

77 lines
3.1 KiB
C++

// The renderer plugin's entry points, which SceneWindow.dll's createDLLRenderer looks up by name (exported
// undecorated by plugin.def). The engine is the adapter's (engine.hpp): IMVU's Direct3D engine draws, and the
// renderer process draws over part of it.
#include <windows.h>
#include <exception>
#include <string_view>
#include "log.hpp"
#include "engine.hpp"
#include "recorder.hpp"
#include "renderer_process.hpp"
#include "t5de/imvu/render_engine.hpp"
namespace {
using namespace t5de;
// IMVU's Direct3D 9 engine, made by SceneWindow.dll (already loaded: it's what loads this plugin). Direct3D
// rather than IMVU's OpenGL engine, which needs a real graphics driver: Direct3D also works on Windows' basic
// display driver (virtual machines), and it's what most players use.
imvu::SharedPtr<imvu::PiRenderEngine> create_imvu_engine(imvu::SharedPtr<imvu::INativeWindow> window)
{
HMODULE scene_window = GetModuleHandleW(L"SceneWindow.dll");
auto create = scene_window == nullptr
? nullptr
: reinterpret_cast<imvu::CreateRenderer>(GetProcAddress(scene_window, imvu::createRendererName));
if (create == nullptr) {
log::info("SceneWindow.dll's createRenderer not found");
return {};
}
return create(std::move(window), imvu::RendererType::Direct3D);
}
// What the renderer process draws: T5DE_RENDERER_VIEW=off, split (the right half), full (the default) or compare.
// (The renderer process can also be switched while it runs: renderer/main.cpp.)
protocol::View view()
{
wchar_t value[16] = {};
GetEnvironmentVariableW(L"T5DE_RENDERER_VIEW", value, 16);
const std::wstring_view setting = value;
return setting == L"off" ? protocol::View::Off
: setting == L"split" ? protocol::View::Split
: setting == L"compare" ? protocol::View::Compare
: protocol::View::Full;
}
} // namespace
extern "C" int __cdecl isRenderEngineSupported() { return 1; }
// Returns a C++ object from a C-linkage function: fine here, the caller is C++ built for the same ABI.
#pragma warning(suppress : 4190)
extern "C" imvu::SharedPtr<imvu::PiRenderEngine> __cdecl createRenderEngine(imvu::SharedPtr<imvu::INativeWindow> window)
{
try {
log::info("createRenderEngine: window {}", static_cast<void*>(window.get()));
HWND hwnd = window ? window->getPlatformWindow() : nullptr;
auto inner = create_imvu_engine(std::move(window));
if (!inner) {
return {};
}
const protocol::View shown = view();
auto renderer = hwnd != nullptr && shown != protocol::View::Off ? RendererProcess::start(hwnd, shown) : nullptr;
return imvu::SharedPtr<imvu::PiRenderEngine>(std::make_unique<Engine>(
std::move(inner), std::make_shared<Recorder>(std::move(renderer))));
} catch (const std::exception& e) {
// Exceptions mustn't cross into IMVU's code (a different C++ runtime).
log::info("createRenderEngine failed: {}", e.what());
return {};
} catch (...) {
log::info("createRenderEngine failed");
return {};
}
}