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| author | Edward O'Callaghan <funfunctor@folklore1984.net> | 2017-03-07 00:39:15 +1100 |
|---|---|---|
| committer | Edward O'Callaghan <funfunctor@folklore1984.net> | 2017-03-07 00:51:07 +1100 |
| commit | 897875051d5e8f08fc83052ff8d8dcd344443987 (patch) | |
| tree | 3574104e2961c9a4e959fffec0de4f1476d15d47 | |
| parent | e51684a9fe21761ca7044d76c9e7770347b45832 (diff) | |
README.md: initial notes
Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
| -rw-r--r-- | README.md | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/README.md b/README.md new file mode 100644 index 0000000..211f21c --- /dev/null +++ b/README.md @@ -0,0 +1,26 @@ + +$ sudo dnf install mesa-libgbm-devel libdrm-devel + +$ pkg-config --cflags --libs egl gbm libdrm +-I/usr/include/libdrm -lEGL -lgbm -ldrm + + + +--------- DRM device --------------+ +/ \ + DRM fb => crtc => encoder => connector => display + \ + \ multiple + planes + + + * Framebuffer + - Memory information such as width, height, depth, bpp, pixel format,.. + * CRTC + - Mode information, resolution, depth, polarity, porch, refresh rate,.. + - Information of the buffer region displayed. + - Change current framebuffer to new one. + * Encoder + - Take the digitial bit-stream from the CRTC + - Convert to appropriate analog levels for transmission across the connector to the monitor. + * Connector + - Provide the appropriate physical plugs such as HDMI, DVI-D, VGA, S-Video,.. |