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backend/wayland: extract layer viewport check to a helper

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Improves readability, and we'll need to use it from another
function.
This commit is contained in:
Simon Ser 2023-06-06 17:11:58 +02:00
parent 26f9510e07
commit 09c7af0bd4
1 changed files with 18 additions and 10 deletions
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28
backend/wayland/output.c
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@ -247,6 +247,23 @@ static struct wlr_wl_buffer *get_or_create_wl_buffer(struct wlr_wl_backend *wl,
return create_wl_buffer(wl, wlr_buffer);
}
static bool layer_needs_viewport(struct wlr_output_layer_state *layer_state) {
if (layer_state->buffer == NULL) {
return false;
}
if (layer_state->dst_box.width != layer_state->buffer->width ||
layer_state->dst_box.height != layer_state->buffer->height) {
return true;
}
if (layer_state->src_box.x != 0 ||
layer_state->src_box.y != 0 ||
layer_state->src_box.width != layer_state->dst_box.width ||
layer_state->src_box.height != layer_state->dst_box.height) {
return true;
}
return false;
}
static bool test_layer(struct wlr_wl_output *output, struct wlr_output_layer_state *layer_state) {
if (layer_state->buffer == NULL) {
return true;
@ -265,16 +282,7 @@ static bool test_layer(struct wlr_wl_output *output, struct wlr_output_layer_sta
}
// We need viewporter for scaling and cropping
bool needs_viewport = width != layer_state->buffer->width ||
height != layer_state->buffer->height;
if (!wlr_fbox_empty(&layer_state->src_box)) {
needs_viewport = needs_viewport ||
layer_state->src_box.x != 0 ||
layer_state->src_box.y != 0 ||
layer_state->src_box.width != width ||
layer_state->src_box.height != height;
}
if (output->backend->viewporter == NULL && needs_viewport) {
if (output->backend->viewporter == NULL && layer_needs_viewport(layer_state)) {
return false;
}