BlackMark
36b861d167
Add an injected IDXGISwapChain::Present / Present1 hook as a lower-latency, border-free alternative to WGC. The hook copies the swapchain backbuffer into a shared keyed-mutex texture (coop_video_<pid>); the host opens it by name and samples it. New opt-in HookSubsys_Video (protocol v6 -> v7); the Video mirror panel gains a WGC vs Hooked source toggle that installs/removes the subsystem. Verified by present_hook_test (drives a real D3D11 swapchain end-to-end and reads the rendered pixels back through the shared texture) and against Phantom Brave (D3D9: hook installs cleanly and stays idle, WGC fallback). All 5 tests pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
// Owns the video-mirror pipeline and its UI. Two interchangeable sources feed the
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// same letterboxed renderer: Windows Graphics Capture (no injection, the default)
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// and the injected Present-hook's shared backbuffer texture (lower latency, needs
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// the video subsystem hooked). The target window/pid come from the injected hook.
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#pragma once
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#include <cstdint>
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#include <d3d11.h>
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#include <windows.h>
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#include "capture/frame_renderer.hpp"
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#include "capture/shared_texture.hpp"
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#include "capture/window_capture.hpp"
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#include "ui/app_chrome.hpp"
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namespace coop
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{
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class InjectionPanel;
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class CapturePanel
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{
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public:
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bool init(ID3D11Device* device);
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// The window to mirror via WGC (0 if none yet); typically the injected game's HWND.
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void set_target(HWND target)
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{
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target_ = target;
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}
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// The injection panel supplies the target pid + Present-hook video channel and
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// lets this panel install/remove the video subsystem when the source is Hooked.
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void set_injection(InjectionPanel* injection)
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{
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injection_ = injection;
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}
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// `stats` are the host's render frame-timing, drawn as the mirror's
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// frametime / FPS graphs (this window is what the mirror renders into).
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void draw_ui(const FrameStats& stats);
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// Render thread: draw the mirrored frame as the window background.
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void render(ID3D11DeviceContext* ctx, std::uint32_t dst_w, std::uint32_t dst_h);
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private:
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enum Source : int
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{
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Source_Wgc = 0, // Windows Graphics Capture
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Source_Hooked = 1, // injected Present-hook shared texture
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};
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void draw_perf_graphs(const FrameStats& stats);
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ID3D11Device* device_ = nullptr;
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FrameRenderer renderer_;
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WindowCapture capture_;
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SharedTextureSource shared_;
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InjectionPanel* injection_ = nullptr;
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HWND target_ = nullptr;
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bool enabled_ = false;
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int source_ = Source_Wgc;
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};
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} // namespace coop
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