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wlr-output-management: leverage new wlroots APIs

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These new functions allow testing commits without messing up the
pending state of the output and needing to rollback. The new apply()
function also makes the code considerably more concise.
This commit is contained in:
Isaac Freund
2023-01-24 13:55:40 +01:00
parent 4c6f47669b
commit 946173005d
2 changed files with 19 additions and 46 deletions
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63
river/Root.zig
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@ -19,6 +19,7 @@ const Self = @This();
const build_options = @import("build_options");
const std = @import("std");
const assert = std.debug.assert;
const mem = std.mem;
const wlr = @import("wlroots");
const wl = @import("wayland").server.wl;
@ -450,58 +451,30 @@ fn processOutputConfig(
const wlr_output = head.state.output;
const output = @intToPtr(*Output, wlr_output.data);
if (head.state.enabled) {
wlr_output.enable(true);
var proposed_state = wlr.Output.State.init();
head.state.apply(&proposed_state);
if (head.state.mode) |mode| {
wlr_output.setMode(mode);
} else {
const custom_mode = &head.state.custom_mode;
wlr_output.setCustomMode(custom_mode.width, custom_mode.height, custom_mode.refresh);
}
wlr_output.setScale(head.state.scale);
wlr_output.setTransform(head.state.transform);
wlr_output.enableAdaptiveSync(head.state.adaptive_sync_enabled);
switch (action) {
.test_only => {
if (!output.wlr_output.testCommit()) success = false;
output.wlr_output.rollback();
},
.apply => {
if (output.wlr_output.commit()) {
switch (action) {
.test_only => {
if (!wlr_output.testState(&proposed_state)) success = false;
},
.apply => {
if (wlr_output.commitState(&proposed_state)) {
if (head.state.enabled) {
// Just updates the output's position if it is already in the layout
self.output_layout.add(output.wlr_output, head.state.x, head.state.y);
output.arrangeLayers(.mapped);
} else |_| {
std.log.scoped(.output_manager).err("failed to apply config to output {s}", .{output.wlr_output.name});
success = false;
}
},
}
} else {
// The output is already disabled, so there's nothing to do
if (!wlr_output.enabled) continue;
wlr_output.enable(false);
switch (action) {
.test_only => {
if (!output.wlr_output.testCommit()) success = false;
output.wlr_output.rollback();
},
.apply => {
if (output.wlr_output.commit()) {
} else {
self.removeOutput(output);
self.output_layout.remove(output.wlr_output);
} else |_| {
std.log.scoped(.output_manager).err("failed to apply config to output {s}", .{
output.wlr_output.name,
});
success = false;
}
},
}
} else |_| {
std.log.scoped(.output_manager).err("failed to apply config to output {s}", .{
output.wlr_output.name,
});
success = false;
}
},
}
}