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Fix output scale auto-detection

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Closes: https://github.com/swaywm/sway/issues/4960
This commit is contained in:
Simon Ser 2020-02-10 18:42:45 +01:00 • committed by Brian Ashworth
parent 33a984bbc5
commit 555b0d4087
1 changed files with 36 additions and 14 deletions
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50
sway/config/output.c
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@ -283,8 +283,28 @@ static bool phys_size_is_aspect_ratio(struct wlr_output *output) {
#define MM_PER_INCH 25.4
static int compute_default_scale(struct wlr_output *output) {
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
struct wlr_box box = { .width = output->width, .height = output->height };
if (output->pending.committed & WLR_OUTPUT_STATE_MODE) {
switch (output->pending.mode_type) {
case WLR_OUTPUT_STATE_MODE_FIXED:
box.width = output->pending.mode->width;
box.height = output->pending.mode->height;
break;
case WLR_OUTPUT_STATE_MODE_CUSTOM:
box.width = output->pending.custom_mode.width;
box.height = output->pending.custom_mode.height;
break;
}
}
enum wl_output_transform transform = output->transform;
if (output->pending.committed & WLR_OUTPUT_STATE_TRANSFORM) {
transform = output->pending.transform;
}
wlr_box_transform(&box, &box, transform, box.width, box.height);
int width = box.width;
int height = box.height;
if (height < HIDPI_MIN_HEIGHT) {
return 1;
}
@ -349,18 +369,6 @@ bool apply_output_config(struct output_config *oc, struct sway_output *output) {
output->current_mode = wlr_output->pending.mode;
}
float scale;
if (oc && oc->scale > 0) {
scale = oc->scale;
} else {
scale = compute_default_scale(wlr_output);
sway_log(SWAY_DEBUG, "Auto-detected output scale: %f", scale);
}
if (scale != wlr_output->scale) {
sway_log(SWAY_DEBUG, "Set %s scale to %f", oc->name, scale);
wlr_output_set_scale(wlr_output, scale);
}
if (oc) {
enum scale_filter_mode scale_filter_old = output->scale_filter;
switch (oc->scale_filter) {
@ -393,6 +401,20 @@ bool apply_output_config(struct output_config *oc, struct sway_output *output) {
wlr_output_set_transform(wlr_output, oc->transform);
}
// Apply the scale last before the commit, because the scale auto-detection
// reads the pending output size
float scale;
if (oc && oc->scale > 0) {
scale = oc->scale;
} else {
scale = compute_default_scale(wlr_output);
sway_log(SWAY_DEBUG, "Auto-detected output scale: %f", scale);
}
if (scale != wlr_output->scale) {
sway_log(SWAY_DEBUG, "Set %s scale to %f", oc->name, scale);
wlr_output_set_scale(wlr_output, scale);
}
sway_log(SWAY_DEBUG, "Committing output %s", wlr_output->name);
if (!wlr_output_commit(wlr_output)) {
// Failed to modeset, maybe the output is missing a CRTC. Leave the