mirror of
https://github.com/LGUG2Z/komorebi.git
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LGUG2Z
f01853ceca
komorebi-for-kde/nix/ -> nix/linux/ komorebi-for-mac/nix/ -> nix/macos/ The nix expressions of the platforms (modules, option files, VM test suites, kwin effects, the darwin module) sit next to the existing nix/workspace-src.nix. Renames only (252 files); the flakes that import them are replaced by one root flake later in this stack, so nix does not evaluate at this revision.
50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
virtio-gpu: let virglrenderer use video encode and decode
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virglrenderer can pass a guest's VA-API video encode and decode to the host's
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(virtio_gpu_drv_video in Mesa), but only when asked: with
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VIRGL_RENDERER_USE_VIDEO, and with a get_drm_fd callback to say which DRM node to
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open the host's video device on. QEMU passes neither, so a guest's vainfo lists
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VideoProc and no encoder. VIRGL_RENDERER_USE_VIDEO is only defined with
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VIRGL_RENDERER_UNSTABLE_APIS, which the build has to set.
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--- a/hw/display/virtio-gpu-virgl.c 2026-10-28 15:30:25.853615969 -0700
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+++ b/hw/display/virtio-gpu-virgl.c 2026-10-28 15:30:25.853715164 -0700
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@@ -14,6 +14,7 @@
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#include "qemu/osdep.h"
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#include "qemu/error-report.h"
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#include "qemu/iov.h"
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+#include "qemu/drm.h"
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#include "trace.h"
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/virtio-gpu.h"
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@@ -1345,6 +1346,18 @@
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return qemu_console_gl_ctx_make_current(g->parent_obj.scanout[scanout_idx].con, qctx);
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}
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+#ifdef VIRGL_RENDERER_USE_VIDEO
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+/*
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+ * virglrenderer opens the host's video encoder and decoder (VA-API) on a DRM
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+ * node of its caller's choosing, and disables video when it has none to ask
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+ * for. It owns the fd it gets and closes it.
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+ */
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+static int virgl_get_drm_fd(void *opaque)
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+{
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+ return qemu_drm_rendernode_open(NULL);
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+}
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+#endif
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+
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static struct virgl_renderer_callbacks virtio_gpu_3d_cbs = {
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#if VIRGL_VERSION_MAJOR >= 1
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.version = 3,
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@@ -1453,6 +1466,10 @@
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#endif
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}
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#endif
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+#ifdef VIRGL_RENDERER_USE_VIDEO
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+ virtio_gpu_3d_cbs.get_drm_fd = virgl_get_drm_fd;
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+ flags |= VIRGL_RENDERER_USE_VIDEO;
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+#endif
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#ifdef VIRGL_RENDERER_D3D11_SHARE_TEXTURE
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if (qemu_egl_angle_d3d) {
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flags |= VIRGL_RENDERER_D3D11_SHARE_TEXTURE;
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