kevin-mai 3f1e4afd77 gpui_windows: add win-legacy-compat feature flag for Windows Server 2016 / pre-1809 back-compat ... Introduces a `win-legacy-compat` Cargo feature (forwarded from `gpui_platform`) that gates all Windows Server 2016 / pre-Windows 10 1809 workarounds behind a compile-time flag, preserving exact upstream behaviour and performance when the flag is absent. Changes when `win-legacy-compat` is enabled: - directx_devices.rs: use IDXGIFactory2 (DXGI 1.2, Win8+) instead of IDXGIFactory6 - direct_write.rs: use IDWriteFactory4 + IDWriteFontSetBuilder (Server 2016) instead of Factory5 + in-memory font loader; fall back to temp files for custom font loading - directx_renderer.rs: runtime is_pre_1809 check gates SRV FirstElement workaround; draw_* functions accept scene: &Scene for per-batch buffer re-upload on pre-1809; standard alpha blend replaces dual-source SRC1_COLOR for subpixel pipeline; MSAA quality 0 replaces D3D11_STANDARD_MULTISAMPLE_PATTERN (D3D11.1 sentinel); SM_REMOTESESSION check disables DirectComposition on RDP sessions - shaders.hlsl: #ifdef WIN_LEGACY_COMPAT collapses per-channel ClearType mask to scalar alpha for standard SRC_ALPHA/INV_SRC_ALPHA blending - build.rs: pass /D WIN_LEGACY_COMPAT to fxc (release); pass D3D_SHADER_MACRO define to D3DCompileFromFile (debug); fix /D argument order (must precede input filename); add rerun-if-env-changed for CARGO_FEATURE_WIN_LEGACY_COMPAT - gpui_platform/Cargo.toml: forward win-legacy-compat → gpui_windows/win-legacy-compat		2026-05-27 21:10:07 +08:00
..
src	GPUI updates (#51415)	2026-03-12 22:15:12 +00:00
Cargo.toml	gpui_windows: add win-legacy-compat feature flag for Windows Server 2016 / pre-1809 back-compat	2026-05-27 21:10:07 +08:00
LICENSE-APACHE	gpui: Extract gpui_platform out of gpui (#49277)	2026-02-19 18:57:49 +01:00