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output: take a wlr_buffer in set_cursor

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Instead of passing a wlr_texture to the backend, directly pass a
wlr_buffer. Use get_cursor_size and get_cursor_formats to create
a wlr_buffer that can be used as a cursor.

We don't want to pass a wlr_texture because we want to remove as
many rendering bits from the backend as possible.
This commit is contained in:
Simon Ser 2020-12-04 16:41:16 +01:00
parent 01e0f51fad
commit 2b0a1aeed5
10 changed files with 301 additions and 279 deletions
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13
include/wlr/interfaces/wlr_output.h
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@ -24,22 +24,15 @@ struct wlr_output_impl {
/**
* Set the output cursor plane image.
*
* The parameters describe the image texture, its scale and its transform.
* If the scale and transform doesn't match the output's, the backend is
* responsible for scaling and transforming the texture appropriately.
* If texture is NULL, the cursor should be hidden.
* If buffer is NULL, the cursor should be hidden.
*
* The hotspot indicates the offset that needs to be applied to the
* top-left corner of the image to match the cursor position. In other
* words, the image should be displayed at (x - hotspot_x, y - hotspot_y).
* The hotspot is given in the texture's coordinate space.
*
* If update_texture is true, all parameters need to be taken into account.
* If update_texture is false, only the hotspot is to be updated.
*/
bool (*set_cursor)(struct wlr_output *output, struct wlr_texture *texture,
float scale, enum wl_output_transform transform,
int32_t hotspot_x, int32_t hotspot_y, bool update_texture);
bool (*set_cursor)(struct wlr_output *output, struct wlr_buffer *buffer,
int hotspot_x, int hotspot_y);
/**
* Set the output cursor plane position.
*