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scaled_{img,scene}_buffer: add architecture graph

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Consolatis 2025-01-05 17:28:06 +01:00
parent 5d287ebda4
commit b58f8dab21
2 changed files with 63 additions and 0 deletions
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37
include/common/scaled-img-buffer.h
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@ -18,6 +18,43 @@ struct scaled_img_buffer {
int padding;
};
/*
* | |
* .------------------. .------------.
* scaled_img_buffer | new_output_scale | | set_buffer |
* architecture ´------------------` ´------------`
* | ^
* .--------------------------------|----------------|-------------.
* | v | |
* | .-------------------. .-------------------------. |
* | | scaled_img_buffer |----| wlr_buffer LRU cache(2) |<----, |
* | ´-------------------` ´-------------------------` | |
* | | | | |
* | | .--------------------------. | |
* | | | wlr_buffer LRU cache of | | |
* .-------. | | | other scaled_img_buffers | | |
* | theme | | | | with lab_img_equal() | | |
* ´-------` | | ´--------------------------` | |
* | | | / | | |
* | | | not found found | |
* .---------. | .---------. .----------. .------------. | |
* | lab_img |-img_copy-->| lab_img |-----| render() |--->| wlr_buffer |-----` |
* ´---------` | ´---------` ´----------` ´------------` |
* \ | / |
* \ ´----------/----------------------------------------------------`
* \ /
* .----------------. lab_img provides:
* | lab_img_data | - render function
* | refcount=2 | - list of modification functions
* | `-----------------. to apply on top of lib_img_data
* | | when rendering
* | provides (depending on backend): | - lab_img_equal() comparing the
* | - librsvg handle | lab_img_data reference and
* | - cairo surface | modification function pointers
* ´----------------------------------` of two given lab_img instances
*
*/
/*
* Create an auto scaling image buffer, providing a wlr_scene_buffer node for
* display. It gets destroyed automatically when the backing scaled_scene_buffer