Greg Pomerantz
93b27d724b
The 19-26 ms mid-scroll stalls (Mali-only, fixed content offsets) were the Skia renderer's final synchronous GrDirectContext::flush() blocking the UI thread on Mali driver back-pressure — proven by per-stage timestamps in the vendored renderer (stall frames: flush 19-24 ms, walk 1-3 ms, 1 binding re-eval, image imports 0.1 ms each). - vendor/i-slint-renderer-skia (pinned 1.18.1, [patch.crates-io]): remove that one flush. Redundant on the wgpu backend: the surface already calls flush_and_submit before queue.present, same Vulkan queue, in-order. Phone: 0 stalls across 4 runs (max 3.6-7.4 ms vs the 8.3 ms budget), display verified clean. - docs/BUGS/slint-skia-final-flush-jank.md: full evidence, prior art (slint-ui/slint#12030 closest), open question for a future upstream filing (not filed yet). - Profiling also retired the O(n)-walk theory: Slint 1.18 prunes the item walk to ~133-152 items; the windowed Flickable built on that theory was already reverted (ListView is smooth with the fix). - Strip all jank-hunt instrumentation: FR/SCR/TICK/APLYD/STG logging, stg markers, .gallery_* file knobs, jsamp thread sampler, DbgScroll programmatic scroll, nblog perf-file mirroring. Also fixes the 'launches into unstoppable fast scroll' bug: a leftover .gallery_cmd was re-read on every launch (file never deleted) and overrode user swipes — the hook is gone. - Keep: nblog (logd backpressure is real), zero-dimension decode guards, keep-alive (default-off). - HANDOFF: replace stale windowed-Flickable section with the actual root cause/fix; 15 unit tests pass. Verified on phone (aarch64, 8580 photos) and emulator (x86_64).
118 lines
5.3 KiB
TOML
118 lines
5.3 KiB
TOML
# Copyright © SixtyFPS GmbH <info@slint.dev>
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# SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
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# cSpell: ignore CFCG
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[package]
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name = "i-slint-renderer-skia"
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description = "Skia based renderer for Slint"
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authors.workspace = true
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edition = "2024"
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homepage.workspace = true
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license.workspace = true
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repository.workspace = true
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rust-version.workspace = true
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version.workspace = true
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build = "build.rs"
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[lib]
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path = "lib.rs"
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# Note, these features need to be kept in sync (along with their defaults) in
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# the C++ crate's CMakeLists.txt
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[features]
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wayland = ["glutin/wayland", "softbuffer/wayland", "softbuffer/wayland-dlopen"]
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x11 = ["glutin/x11", "glutin/glx", "softbuffer/x11", "softbuffer/x11-dlopen"]
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opengl = []
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# `vulkan-portability` is how wgpu compiles its Vulkan backend on Apple platforms (MoltenVK).
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# It feeds an apple-target-gated dependency of wgpu-core, so it's inert elsewhere.
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vulkan = [
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"skia-safe/vulkan",
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"wgpu-30",
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"wgpu-30/vulkan",
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"wgpu-30/vulkan-portability",
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"wgpu-29?/vulkan",
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"wgpu-29?/vulkan-portability",
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]
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kms = ["softbuffer/kms"]
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# wgpu-{29,30} enables the wgpu surface module for internal use (e.g. linuxkms DRM rendering), as well as
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# the explicit graphics APIs: Direct3D 12 on Windows, Metal on Apple, Vulkan on apple and other unix
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wgpu-29 = ["i-slint-core/wgpu-29", "dep:wgpu-29", "dep:spin_on", "dep:windows-core", "dep:wgpu-hal-29"]
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unstable-wgpu-29 = ["i-slint-core/unstable-wgpu-29", "wgpu-29"]
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wgpu-30 = ["i-slint-core/wgpu-30", "dep:wgpu-30", "dep:spin_on", "dep:windows-core", "dep:wgpu-hal-30"]
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unstable-wgpu-30 = ["i-slint-core/unstable-wgpu-30", "wgpu-30"]
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default = ["softbuffer", "wgpu-30"]
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[dependencies]
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i-slint-core = { workspace = true, features = ["default", "box-shadow-cache", "shared-parley", "image-decoders", "svg"] }
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i-slint-core-macros = { workspace = true, features = ["default"] }
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i-slint-common = { workspace = true, features = ["default"] }
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const-field-offset = { version = "0.2.1", path = "../../../helper_crates/const-field-offset" }
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vtable = { workspace = true }
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cfg-if = "1"
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lyon_path = { workspace = true }
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pin-weak = "1"
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scoped-tls-hkt = "0.1"
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raw-window-handle = { version = "0.6", features = ["std"] }
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clru = { workspace = true }
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skia-safe = { version = "0.153.3", features = ["gl"] }
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glow = { workspace = true }
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unicode-segmentation = { workspace = true }
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wgpu-29 = { workspace = true, optional = true }
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wgpu-30 = { workspace = true, optional = true }
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spin_on = { version = "0.1", optional = true }
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[target.'cfg(any(not(target_vendor = "apple"), target_os = "macos"))'.dependencies]
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glutin = { workspace = true, default-features = false, features = ["egl", "wgl"] }
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[target.'cfg(not(target_os = "android"))'.dependencies]
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# software renderer fallback
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softbuffer = { workspace = true, default-features = false, optional = true }
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bytemuck = { workspace = true }
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[target.'cfg(target_family = "windows")'.dependencies]
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windows = { workspace = true, features = ["Win32", "Win32_Graphics", "Win32_Graphics_Dxgi", "Win32_Graphics_Direct3D12", "Win32_Graphics_Direct3D", "Win32_Foundation", "Win32_Graphics_Dxgi_Common"] }
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windows-core = { workspace = true, optional = true }
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skia-safe = { version = "0.153.3", features = ["d3d"] }
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wgpu-29 = { workspace = true, optional = true, features = ["dx12"] }
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wgpu-30 = { workspace = true, optional = true, features = ["dx12"] }
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[target.'cfg(target_vendor = "apple")'.dependencies]
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objc2 = { version = "0.6.0" }
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objc2-metal = { version = "0.3.2", default-features = false, features = ["std", "MTLCommandQueue", "MTLCommandBuffer", "MTLDevice", "MTLResource", "MTLTexture", "MTLTypes"] }
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objc2-foundation = { version = "0.3.2", default-features = false, features = ["std", "NSGeometry"] }
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objc2-quartz-core = { version = "0.3.2", default-features = false, features = ["std", "objc2-metal", "CALayer", "CAMetalLayer", "objc2-core-foundation"] }
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objc2-app-kit = { version = "0.3.2", default-features = false, features = ["std", "NSResponder", "NSView"] }
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objc2-core-foundation = { version = "0.3.2", default-features = false, features = ["CFCGTypes"] }
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skia-safe = { version = "0.153.3", features = ["metal"] }
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wgpu-29 = { workspace = true, optional = true, features = ["metal"] }
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wgpu-30 = { workspace = true, optional = true, features = ["metal"] }
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# Version floor for `metal::Queue::as_raw` (used in wgpu_29_surface/metal.rs),
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# which was added in wgpu-hal 29.0.4. Enabled by the `wgpu-29` feature; only
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# declared here (Apple) because that is the only target using the API.
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wgpu-hal-29 = { workspace = true, optional = true }
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wgpu-hal-30 = { workspace = true, optional = true }
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read-fonts = { workspace = true }
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# Pinned to 0.50 to align with read-fonts from parley and avoid duplicated dependencies
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write-fonts = { version = "0.50" }
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[target.'cfg(not(any(target_vendor = "apple", target_family = "windows")))'.dependencies]
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skia-safe = { version = "0.153.3", features = ["gl", "vulkan"] }
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wgpu-29 = { workspace = true, optional = true, features = ["vulkan"] }
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wgpu-30 = { workspace = true, optional = true, features = ["vulkan"] }
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[target.aarch64-apple-ios-sim.dependencies]
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# Disabling encoding assertions until https://github.com/madsmtm/objc2/issues/795 is fixed.
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objc2 = { version = "0.6.0", features = ["disable-encoding-assertions"] }
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[build-dependencies]
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cfg_aliases = { workspace = true }
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[package.metadata.docs.rs]
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rustdoc-args = ["--generate-link-to-definition"]
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