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output-layer: add support for scaling buffers

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This allows callers to set a destination size different from the
buffer size to scale them.

The DRM backend supports this. The Wayland backend doesn't yet
(we'd need to wire up viewporter).
This commit is contained in:
Simon Ser 2023-04-04 19:38:48 +02:00
parent 89dcecba39
commit 835208db98
5 changed files with 27 additions and 16 deletions
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8
backend/drm/libliftoff.c
View file

@ -196,10 +196,10 @@ static bool set_layer_props(struct wlr_drm_backend *drm,
return false;
}
uint64_t crtc_x = (uint64_t)state->x;
uint64_t crtc_y = (uint64_t)state->y;
uint64_t crtc_w = (uint64_t)width;
uint64_t crtc_h = (uint64_t)height;
uint64_t crtc_x = (uint64_t)state->dst_box.x;
uint64_t crtc_y = (uint64_t)state->dst_box.y;
uint64_t crtc_w = (uint64_t)state->dst_box.width;
uint64_t crtc_h = (uint64_t)state->dst_box.height;
uint64_t src_x = to_fp16(0);
uint64_t src_y = to_fp16(0);