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Add new struct wlr_multi_gpu

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For development to continue on systems (such as optimus laptops) that
have multiple GPUs, we need a way to reference all of the renderers
that have been created for devices in the system. A wlr_multi_gpu
struct holds renderers coming from two different sources:
1. the primary renderer (given to us by the compositor)
2. drm sub backends, each of which has a renderer created for
   cross-GPU copies.

This change provides a way to access all of these from the same
place.
This commit is contained in:
Austin Shafer 2022-07-27 16:07:21 -04:00
parent ed8961b309
commit 5a38cc57c8
7 changed files with 142 additions and 4 deletions
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8
include/wlr/render/wlr_renderer.h
View file

@ -14,13 +14,10 @@
#include <wlr/render/pass.h>
#include <wlr/render/wlr_texture.h>
#include <wlr/util/box.h>
#include <wlr/backend/multi.h>
struct wlr_backend;
struct wlr_renderer_impl;
struct wlr_drm_format_set;
struct wlr_buffer;
struct wlr_box;
struct wlr_fbox;
/**
* A renderer for basic 2D operations.
@ -39,6 +36,9 @@ struct wlr_renderer {
// private state
const struct wlr_renderer_impl *impl;
/* The GPU list we are a part of, may be null if not created from multi backend */
struct wlr_multi_gpu *multi_gpu;
};
/**