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https://github.com/hyprwm/wlroots-hyprland.git
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bf93d2e67c
The output backend API is now mostly state-less thanks to the atomic hooks (commit and test). There is one exception though: attach_render. This function makes the rendering context current. However sometimes the compositor might decide not to render after attach_render (e.g. when there's nothing new to render to the back buffer). Thus wlr_output_rollback has been introduced to revert the pending state. Because the output backend API is mostly state-less, the only thing wlr_output_impl.rollback needs to do is revert the current rendering context. Rename the function to rollback_render to make this clear. Add a check in the common wlr_output code to only call rollback_render when attach_buffer has been previously called. On the long term, we'll be able to remove attach_render and rollback_render together.
45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_INTERFACES_WLR_OUTPUT_H
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#define WLR_INTERFACES_WLR_OUTPUT_H
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#include <stdbool.h>
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#include <wlr/backend.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_output.h>
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struct wlr_output_impl {
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bool (*set_cursor)(struct wlr_output *output, struct wlr_texture *texture,
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float scale, enum wl_output_transform transform,
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int32_t hotspot_x, int32_t hotspot_y, bool update_texture);
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bool (*move_cursor)(struct wlr_output *output, int x, int y);
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void (*destroy)(struct wlr_output *output);
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bool (*attach_render)(struct wlr_output *output, int *buffer_age);
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bool (*test)(struct wlr_output *output);
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bool (*commit)(struct wlr_output *output);
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void (*rollback_render)(struct wlr_output *output);
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size_t (*get_gamma_size)(struct wlr_output *output);
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bool (*export_dmabuf)(struct wlr_output *output,
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struct wlr_dmabuf_attributes *attribs);
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};
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void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
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const struct wlr_output_impl *impl, struct wl_display *display);
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void wlr_output_update_mode(struct wlr_output *output,
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struct wlr_output_mode *mode);
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void wlr_output_update_custom_mode(struct wlr_output *output, int32_t width,
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int32_t height, int32_t refresh);
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void wlr_output_update_enabled(struct wlr_output *output, bool enabled);
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void wlr_output_update_needs_frame(struct wlr_output *output);
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void wlr_output_damage_whole(struct wlr_output *output);
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void wlr_output_send_frame(struct wlr_output *output);
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void wlr_output_send_present(struct wlr_output *output,
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struct wlr_output_event_present *event);
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#endif
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