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chromium-fourier: - patch 3/3 nv12-external-oes-on-modifier-external-only.patch — adds NativePixmapEGLBinding::ModifierRequiresExternalOES helper, extends OzoneImageGLTexturesHolder::GetBinding to honor EGL external_only flag for NV12 dmabufs on panfrost / panthor. Validated on ohm (RK3566 hantro mainline 6.19.10): bbb_1080p30_h264.mp4 plays at 34.7 % combined CPU vs ~131 % pre-patch baseline (~3.8x). - PKGBUILD pkgrel 1->2, source array + sha256sums + prepare() hook for patch 4, patch numbering 1/2,2/2 -> 1/3,2/3,3/3. - NEXT.md appended with 2026-04-28 section: patch 4 design, validation log, KWin GL_ALPHA bug pinpoint (preexisting since 2026-03-06, affects every wayland video client; unrelated to chromium-fourier), device-renumbering note (/dev/video1 = encoder post-reboot). - KWIN_PIVOT.md: 4-phase plan to identify and patch KWin's glTexImage2D(internalFormat=GL_ALPHA) site, ohm-only test plan, scope discipline. - patches/ now tracked (compiler-rt-adjust-paths, enable-v4l2, wayland-allow-direct-egl-gles2, nv12-external-oes); the dead-end chromeos-pipeline-bypass.patch removed. firefox-fourier: - 4 patches (gfxinfo v4l2 stateless fourccs, libwrapper hwdevice ctx, ffmpegvideo v4l2-request route, prefs v4l2-request default). - PKGBUILD bumped to firefox 150.0.1, Arch toolchain glue patches layered in, mozconfig with --without-wasm-sandboxed-libraries for ALARM, package() launcher fix (rm -f symlink before cat > to avoid ENOENT through the dangling /usr/local symlink mach install drops). - 150.0.1-1-aarch64.pkg.tar.zst built on boltzmann (95 MB), pending fresnel power-on for V4L2 stateless validation on RK3399.
76 lines
3.2 KiB
Diff
76 lines
3.2 KiB
Diff
From: Markus Fritsche <mfritsche@reauktion.de>
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Subject: [PATCH 1/4] widget/gtk: recognize V4L2 stateless fourccs in
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GfxInfo prober (S264 / S265 / VP9F)
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Date: 2026-04-27
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Background
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----------
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Firefox's V4L2 prober in `widget/gtk/GfxInfo.cpp::V4L2ProbeDevice`
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parses `v4l2test`'s `V4L2_OUTPUT_FMTS` line and matches against the
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fourccs of stateful V4L2-M2M decoders (`H264`, `VP80`, `VP90`, `HEVC`).
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That's correct for Pi4 / Mediatek / vendor-MPP stateful decoders but
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silently skips every mainline-Linux Rockchip board: RK3399 `rkvdec`,
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RK3566 `hantro` (multiplanar), RK3588 `hantro` and `rkvdec2` all
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expose stateless fourccs only — `S264`, `S265`, `VP9F`. The probe
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binary itself enumerates these correctly (verified end-to-end on
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fresnel / Pinebook Pro / RK3399 with `v4l2test --device /dev/video1`
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showing `V4L2_OUTPUT_FMTS: S265 S264 VP9F` and
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`V4L2_SUPPORTED: TRUE`); the gap is purely in this string table.
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This patch adds the three sibling blocks for the stateless fourccs,
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each identical in shape to the existing stateful blocks except for
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setting a new `mV4L2IsStateless` member. The follow-up patches in
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this series (2/4, 3/4, 4/4) consume that member to route through the
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libavcodec v4l2_request hwaccel (`AV_HWDEVICE_TYPE_DRM`) instead of
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the v4l2m2m codec wrapper used for stateful boards.
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Bug 1969297.
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diff --git a/widget/gtk/GfxInfo.h b/widget/gtk/GfxInfo.h
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--- a/widget/gtk/GfxInfo.h
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+++ b/widget/gtk/GfxInfo.h
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@@ -127,6 +127,10 @@
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mozilla::Maybe<bool> mIsVAAPISupported;
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int mVAAPISupportedCodecs = 0;
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mozilla::Maybe<bool> mIsV4L2Supported;
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+ // firefox-fourier: true when probe matched at least one stateless
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+ // V4L2 fourcc (S264 / S265 / VP9F). Drives libavcodec v4l2_request
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+ // hwaccel routing in FFmpegVideoDecoder.cpp.
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+ bool mV4L2IsStateless = false;
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int mV4L2SupportedCodecs = 0;
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static int sGLXTestPipe;
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diff --git a/widget/gtk/GfxInfo.cpp b/widget/gtk/GfxInfo.cpp
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--- a/widget/gtk/GfxInfo.cpp
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+++ b/widget/gtk/GfxInfo.cpp
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@@ -852,6 +852,29 @@ void GfxInfo::V4L2ProbeDevice(nsCString& dev) {
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media::MCSInfo::AddSupport(media::MediaCodecsSupport::HEVCHardwareDecode);
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mV4L2SupportedCodecs |= CODEC_HW_DEC_HEVC;
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}
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+ // firefox-fourier: V4L2 stateless (request API) fourccs. Mainline
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+ // Rockchip rkvdec / hantro / rkvdec2 expose these instead of the
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+ // V4L2-M2M-stateful fourccs above. Decoding routes through
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+ // libavcodec's v4l2_request hwaccel (AV_HWDEVICE_TYPE_DRM) rather
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+ // than the *_v4l2m2m codec wrappers — see FFmpegVideoDecoder.cpp.
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+ if (outFormats.Contains("S264")) {
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+ mIsV4L2Supported = Some(true);
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+ mV4L2IsStateless = true;
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+ media::MCSInfo::AddSupport(media::MediaCodecsSupport::H264HardwareDecode);
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+ mV4L2SupportedCodecs |= CODEC_HW_DEC_H264;
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+ }
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+ if (outFormats.Contains("S265")) {
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+ mIsV4L2Supported = Some(true);
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+ mV4L2IsStateless = true;
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+ media::MCSInfo::AddSupport(media::MediaCodecsSupport::HEVCHardwareDecode);
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+ mV4L2SupportedCodecs |= CODEC_HW_DEC_HEVC;
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+ }
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+ if (outFormats.Contains("VP9F")) {
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+ mIsV4L2Supported = Some(true);
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+ mV4L2IsStateless = true;
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+ media::MCSInfo::AddSupport(media::MediaCodecsSupport::VP9HardwareDecode);
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+ mV4L2SupportedCodecs |= CODEC_HW_DEC_VP9;
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+ }
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}
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const nsTArray<RefPtr<GfxDriverInfo>>& GfxInfo::GetGfxDriverInfo() {
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