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8f1f25534f
Since we now have a way to enforce the zpos, check for the number of alpha planes, the only missing part is to assign our pipe automatically instead of hardcoding it. The algorithm is quite simple, but requires two iterations over the list of planes. In the first one (which is the same one that we've had to check for alpha, the frontend usage, and so on), we order the planes by their zpos. We can then do a second iteration over that array by ascending zpos starting with the pipe 0. When and if we encounter our alpha plane, we put it and all the other subsequent planes in the second pipe. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/e9caf21d831438d36a3ccc7cef229c9a7ea7f69f.1518802627.git-series.maxime.ripard@bootlin.com
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#ifndef _SUN4I_LAYER_H_
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#define _SUN4I_LAYER_H_
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struct sunxi_engine;
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struct sun4i_layer {
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struct drm_plane plane;
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struct sun4i_drv *drv;
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struct sun4i_backend *backend;
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int id;
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};
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struct sun4i_layer_state {
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struct drm_plane_state state;
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unsigned int pipe;
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bool uses_frontend;
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};
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static inline struct sun4i_layer *
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plane_to_sun4i_layer(struct drm_plane *plane)
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{
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return container_of(plane, struct sun4i_layer, plane);
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}
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static inline struct sun4i_layer_state *
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state_to_sun4i_layer_state(struct drm_plane_state *state)
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{
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return container_of(state, struct sun4i_layer_state, state);
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}
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struct drm_plane **sun4i_layers_init(struct drm_device *drm,
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struct sunxi_engine *engine);
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#endif /* _SUN4I_LAYER_H_ */
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