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const drm = @import("../root.zig");
const graphics = @import("estd").graphics;
pub const Buffer = struct {
const Self = @This();
pub const Raw = @import("raw.zig").Raw;
current: Raw,
crtc: Raw,
pub fn init(card: drm.Card, width: u32, height: u32) !Self {
return .{
.current = try Raw.init(card, width, height),
.crtc = try Raw.init(card, width, height),
};
}
pub fn swap(self: *Self) void {
const bytes = self.current.bytes;
self.current.bytes = self.crtc.bytes;
self.crtc.bytes = bytes;
const id = self.current.id;
self.current.id = self.crtc.id;
self.crtc.id = id;
}
pub fn deinit(self: *Self) void {
self.current.deinit();
self.crtc.deinit();
}
pub fn canvas(self: *Self) graphics.Canvas {
return .{
.width = self.current.width,
.height = self.current.height,
.buffer = @as(
[*]volatile graphics.Pixel,
@ptrCast(@alignCast(self.current.bytes))
)[0..self.current.bytes.len / 4],
};
}
};
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