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render: do basic yes/no damage tracking

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This commit is contained in:
Isaac Freund
2021-05-23 17:10:26 +02:00
parent 3390f223a8
commit 13f01bcb4b
11 changed files with 233 additions and 54 deletions
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14
river/render.zig
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@ -53,7 +53,19 @@ pub fn renderOutput(output: *Output) void {
var now: os.timespec = undefined;
os.clock_gettime(os.CLOCK_MONOTONIC, &now) catch unreachable;
output.wlr_output.attachRender(null) catch return;
var needs_frame: bool = undefined;
var damage_region: pixman.Region32 = undefined;
damage_region.init();
defer damage_region.deinit();
output.damage.attachRender(&needs_frame, &damage_region) catch {
log.err("failed to attach renderer", .{});
return;
};
if (!needs_frame) {
output.wlr_output.rollback();
return;
}
renderer.begin(@intCast(u32, output.wlr_output.width), @intCast(u32, output.wlr_output.height));