Commit Graph

736 Commits

Author SHA1 Message Date
Cameron Gutman ed98f256e8 Fix typo 2026-01-06 02:14:45 -06:00
Cameron Gutman 8aec35a650 Allow primary planes to be overlays for video underlays 2026-01-06 02:12:32 -06:00
Cameron Gutman a3237b741c Support underlay planes by turning off unused active planes 2026-01-06 01:59:34 -06:00
Cameron Gutman 377409f313 Fix oversized DRM dumb buffer for 4:2:0 uploads 2026-01-06 00:49:49 -06:00
Cameron Gutman 80ddd5ba13 Fix software upload for DRM renderer with non-720p resolutions
The buffer allocated for the 720p test frame was left around
and we would attempt to reuse it even if the stream had frames
of a different size.
2026-01-06 00:35:36 -06:00
Cameron Gutman 4a547eb05e Add fourcc_mod_is_vendor() definition for older headers 2026-01-05 23:00:31 -06:00
Cameron Gutman 1c6ed8f390 Remove atomic test-only commit
This is currently race-prone because nothing is synchronizing
between other Qt and SDL uses of DRM master, so it can cause
false negatives if we can't retake master ourselves.
2026-01-05 21:50:31 -06:00
Cameron Gutman 0a58af4fa1 Allow plane selection overrides using environment variables 2026-01-05 21:27:52 -06:00
Cameron Gutman 50a094c917 Fix percentage math 2026-01-05 21:01:23 -06:00
Cameron Gutman d14cf984f4 Print flip stats after the DrmRenderer is destroyed 2026-01-05 20:52:53 -06:00
Cameron Gutman 13d9d79fe3 Implement support for adjusting zpos to make planes visible 2026-01-05 20:39:12 -06:00
Cameron Gutman 70d4f24455 Fix pending frame leak on destruction 2026-01-05 19:15:58 -06:00
Cameron Gutman 705cd3ddc4 Allow rendering to a cursor plane via opt-in
This is required for some Rockchip devices running vendor kernels.
2026-01-05 19:08:22 -06:00
Cameron Gutman ea5b062da3 Set VRR, BPC, and content type properties 2026-01-05 18:58:21 -06:00
Cameron Gutman e6f41f5574 Improve DRM renderer plane compatibility testing
For atomic drivers, use a test-only commit to fully exercise the
path that we will be using when rendering.

For legacy drivers, mask the variable portion of Broadcom modifiers
before matching with IN_FORMATS.
2026-01-05 18:20:39 -06:00
Cameron Gutman 83d770cdba Prefer BT2020_YCC to allow chroma subsampling 2026-01-04 22:16:52 -06:00
Cameron Gutman 25e2d39e26 Fix copy-paste mistake in 8726c1 2026-01-04 21:52:12 -06:00
Cameron Gutman bd32370b6d Fix libdrm return value vs errno confusion
libdrm is inconsistent between returning -1 with an errno set
and just returning -errno as the return value. Figuring out which
behavior a given libdrm function has require reading the source :/
2026-01-04 21:50:40 -06:00
Cameron Gutman 8726c1c7d0 Bring back atomic async page flip support
Now that we're referencing the AVFrame to keep the buffers from
being reused during scanout, this should hopefully work better.
2026-01-04 19:34:13 -06:00
Cameron Gutman 34881599f5 Reference the AVFrame while the backing DMA-BUFs are used for scanout
This prevents tearing and other artifacts caused by the decoder
writing to a DMA-BUF that is currently being displayed.
2026-01-04 18:47:00 -06:00
Cameron Gutman de0fb72424 av_buffer_create() copies the pointer not the data 2026-01-04 18:24:20 -06:00
Cameron Gutman 46c76534bc Use AVBufferRefs to keep EGLImages and DRM FDs around for the lifetime of the frame 2026-01-04 18:06:24 -06:00
Cameron Gutman b8c3658c42 Skip modifier check if the frame doesn't have any modifiers 2026-01-03 02:53:44 -06:00
Cameron Gutman d3fb52c5a0 Check modifiers support in IN_FORMATS property
As it turns out, there *are* in fact hardware vendors dumb enough
to ship V4L2 decoders that output buffers which are unsupported by
any plane on their display hardware. By checking modifiers, we can
still fall back to GLES on GL_IS_SLOW=1 builds in this case.
2026-01-03 02:43:15 -06:00
Cameron Gutman 2972022ced Remove async and non-blocking page flip support
It doesn't work well in practice for a few major reasons:
- It can result in the decoder writing on DMA-BUFs being used by the display
- It can generate page flip events that collide with Qt/SDL
- It can stall the decoder if the DMA-BUF has a fence on it from the display driver
2026-01-03 00:41:14 -06:00
Cameron Gutman c0846155c3 Fix page flipping bugs 2026-01-02 20:01:54 -06:00
Cameron Gutman ac6dadffc6 Use page flip events to correctly synchronize with async flips 2026-01-02 19:47:43 -06:00
Cameron Gutman 745ac34b15 Improve page flipping and modifier handling in DrmRenderer 2026-01-02 18:44:18 -06:00
Cameron Gutman 5f89636ed7 Improve robustness of DRM property value handling 2026-01-02 02:06:11 -06:00
Cameron Gutman 46d58e55a3 Add macro for printing FourCC values 2026-01-02 01:46:20 -06:00
Cameron Gutman be460970a8 Remove use of DMA_BUF_IOCTL_SYNC
It's only necessary on "real" DMA-BUFs, not dumb buffers.
2026-01-02 01:30:03 -06:00
Cameron Gutman d50ba06321 Implement DRM atomic renderer with overlay support
Fixes #1733
2026-01-02 01:24:35 -06:00
Cameron Gutman b6d10a34c8 Update blocking swap buffer opt-out comment 2025-12-30 15:43:31 -06:00
Cameron Gutman 232ff0b3c6 Revert "Remove opt-out of blocking swap buffers logic for KMSDRM"
This significantly hurts performance on slower GPUs by preventing
the pipelining required when frametimes exceed the video frame
interval.

This reverts commit c26e437f40.
2025-12-30 15:39:47 -06:00
Cameron Gutman c26e437f40 Remove opt-out of blocking swap buffers logic for KMSDRM
We don't set SDL_HINT_VIDEO_DOUBLE_BUFFER since b1c77ff.
2025-12-29 16:51:03 -06:00
Cameron Gutman e89f63b8fb Skip unnecessary glClear() on X11 2025-12-29 16:50:15 -06:00
Cameron Gutman 93dc6d6b60 Convert Metal shaders to FP16 2025-12-29 01:45:49 -06:00
Cameron Gutman 3e5aa9b127 Simplify EGLImageFactory and remove caching logic for now
The platforms that would most benefit (embedded V4L2 decoders)
either don't use frame pooling or don't synchronize with
modified DMA-BUFs unless eglCreateImage() is called each time.
2025-12-28 17:54:31 -06:00
Cameron Gutman 085480e9f4 Add EGLImage caching to improve performance 2025-12-28 17:08:45 -06:00
Cameron Gutman c3ce0918b3 Optimize blending in DXVA2 and D3D11VA renderers 2025-12-28 13:53:13 -06:00
Cameron Gutman c5b7a9c679 Optimize EGLRenderer with overlay VAOs and reduced GL_BLEND usage 2025-12-28 13:14:16 -06:00
Cameron Gutman f1451a0db3 Fix UB due to missing shader attribute location binding
Mesa drivers seem to generally bind attributes in order, but the
proprietary PowerVR driver (pvr) doesn't and renders incorrectly
as a result.
2025-12-27 23:56:17 -06:00
Cameron Gutman 8a5f34fb01 Remove logic to force the OpenGL ES library to load
This isn't necessary now that we turn on EGL everywhere,
and it breaks OpenGL ES 2.0 support too.
2025-12-27 23:11:53 -06:00
Cameron Gutman d1f43ca258 Use ESSL 1.0 for EGLRenderer shaders
We still ostensibly support GLES 2.0 GPUs.
2025-12-27 22:56:20 -06:00
Cameron Gutman 4f08d52754 Enable DRM_PRIME frames for the TH1520 2025-12-27 15:40:59 -06:00
Cameron Gutman 41ad3c0938 Add environment variable override helper function
This allows FORCE_QT_GLES and SEPARATE_TEST_DECODER to override both true and false.
2025-12-27 15:33:39 -06:00
Cameron Gutman a6f8901a18 Reuse the test decoder to improve startup performance 2025-12-23 00:32:36 -06:00
Cameron Gutman d501a627f0 Test all renderers before use
Every renderer except SDL had opted-in for testing due to various
quirks discovered over the years, so just do away with this option
and test all renderers.
2025-12-22 23:58:26 -06:00
Cameron Gutman 3425fec33d Use EGL+GLES workaround for Nvidia X11
We can avoid disabling EGL entirely by forcing Qt to use GLES,
which is not impacted by the black window issue. This lets us
simplify back to EGL everywhere.
2025-12-14 16:21:32 -06:00
Cameron Gutman de844f2a0c Deprioritize the Nvidia VAAPI driver if Vulkan or CUDA are available 2025-12-11 20:13:14 -06:00