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Add docs and comments
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3 changed files with 32 additions and 16 deletions
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@ -33,8 +33,6 @@ struct wlr_output_cursor {
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struct wl_listener surface_destroy;
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};
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#define WLR_OUTPUT_PREVIOUS_DAMAGE_COUNT 2
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struct wlr_output_impl;
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struct wlr_output {
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@ -51,21 +49,21 @@ struct wlr_output {
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char serial[16];
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int32_t phys_width, phys_height; // mm
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// Note: some backends may have zero modes
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struct wl_list modes;
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struct wlr_output_mode *current_mode;
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int32_t width, height;
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int32_t refresh; // mHz, may be zero
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bool enabled;
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float scale;
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enum wl_output_subpixel subpixel;
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enum wl_output_transform transform;
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bool needs_swap;
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pixman_region32_t damage;
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pixman_region32_t damage; // damage for cursors and fullscreen surface
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float transform_matrix[16];
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// Note: some backends may have zero modes
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struct wl_list modes;
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struct wlr_output_mode *current_mode;
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int32_t width, height;
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int32_t refresh; // mHz
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struct {
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struct wl_signal frame;
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struct wl_signal needs_swap;
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@ -107,16 +105,18 @@ void wlr_output_destroy(struct wlr_output *output);
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void wlr_output_effective_resolution(struct wlr_output *output,
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int *width, int *height);
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/**
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* Makes the output GL context current.
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* Makes the output rendering context current.
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*
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* `buffer_age` is set to the drawing buffer age in number of frames or -1 if
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* unknown.
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* unknown. This is useful for damage tracking.
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*/
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bool wlr_output_make_current(struct wlr_output *output, int *buffer_age);
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/**
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* Swaps the output buffers. If the time of the frame isn't known, set `when` to
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* NULL. If the compositor doesn't support damage tracking, set `damage` to
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* NULL.
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*
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* Swapping buffers schedules a `frame` event.
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*/
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bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
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pixman_region32_t *damage);
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@ -126,6 +126,7 @@ uint32_t wlr_output_get_gamma_size(struct wlr_output *output);
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void wlr_output_set_fullscreen_surface(struct wlr_output *output,
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struct wlr_surface *surface);
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struct wlr_output_cursor *wlr_output_cursor_create(struct wlr_output *output);
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/**
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* Sets the cursor image. The image must be already scaled for the output.
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