screen: drm change struct layout

6 files changed, 161 insertions, 0 deletions

diff --git a/src/screen/drm/request/connector.zig b/src/screen/drm/request/connector.zig
new file mode 100644
index 0000000..7f0b788
--- /dev/null
+++ b/src/screen/drm/request/connector.zig
@@ -0,0 +1,24 @@
+const drm = @import("../root.zig");
+const Mode = drm.Connector.Mode;
+const Kind = drm.Connector.Kind;
+const Status = drm.Connector.Status;
+
+pub const Connector = extern struct {
+	encoder_ids: ?*u32,
+	modes: ?*Mode,
+	prop_ids: ?*u32,
+	prop_value_ids: ?*u64,
+	count_modes: u32,
+	count_props: u32,
+	count_encoders: u32,
+	encoder_id: u32,
+	id: u32,
+	type: Kind,
+	type_id: u32,
+	connection: Status,
+	mm_width: u32,
+	mm_height: u32,
+	subpixel: u32,
+	pad: u32,
+};
+
diff --git a/src/screen/drm/request/crtc.zig b/src/screen/drm/request/crtc.zig
new file mode 100644
index 0000000..f52a9ff
--- /dev/null
+++ b/src/screen/drm/request/crtc.zig
@@ -0,0 +1,29 @@
+const Mode = @import("../connector/mode.zig").Mode;
+
+pub const Crtc = extern struct {
+	connector_ids: ?*u32,
+	count_connectors: u32,
+	id: u32,
+	buffer_id: u32,
+	x: u32,
+	y: u32,
+	gamma_size: u32,
+	mode_valid: u32,
+	mode: Mode,
+};
+
+pub const PageFlip = extern struct {
+	pub const Event = packed struct(u32) {
+		event: bool,
+		is_async: bool,
+		absolute: bool,
+		relative: bool,
+		__padding: u28,
+	};
+
+	crtc_id: u32,
+	buffer_id: u32,
+	flags: Event,
+	__reserved: u32,
+	user_data: u64,
+};
diff --git a/src/screen/drm/request/encoder.zig b/src/screen/drm/request/encoder.zig
new file mode 100644
index 0000000..3cf7985
--- /dev/null
+++ b/src/screen/drm/request/encoder.zig
@@ -0,0 +1,9 @@
+const drm = @import("../root.zig");
+
+pub const Encoder = extern struct {
+	id: u32,
+	type: drm.Encoder.Kind,
+	crtc_id: u32,
+	possible_crtcs: u32,
+	possible_clones: u32,
+};
diff --git a/src/screen/drm/request/frame-buffer.zig b/src/screen/drm/request/frame-buffer.zig
new file mode 100644
index 0000000..8f93862
--- /dev/null
+++ b/src/screen/drm/request/frame-buffer.zig
@@ -0,0 +1,29 @@
+const drm = @import("../root.zig");
+
+pub const CreateDumb = extern struct {
+	height: u32,
+	width: u32,
+	bpp: u32,
+	flags: u32,
+	handle: u32,
+	pitch: u32,
+	size: u32,
+};
+
+pub const FrameBufferCmd2 = extern struct {
+	id: u32,
+	width: u32,
+	height: u32,
+	pixel_format: drm.Pixel.Format,
+	flags: u32,
+	handles: [4]u32,
+	pitches: [4]u32,
+	offsets: [4]u32,
+	modifier: [4]u32,
+};
+
+pub const MapDumb = extern struct {
+	handle: u32,
+	__padding: u32,
+	offset: i64,
+};
diff --git a/src/screen/drm/request/resources.zig b/src/screen/drm/request/resources.zig
new file mode 100644
index 0000000..bc3ce3c
--- /dev/null
+++ b/src/screen/drm/request/resources.zig
@@ -0,0 +1,15 @@
+pub const Resources = extern struct {
+	fb_ids: ?*u32,
+	crtc_ids: ?*u32,
+	connector_ids: ?*u32,
+	encoder_ids: ?*u32,
+	count_fbs: u32,
+	count_crtcs: u32,
+	count_connectors: u32,
+	count_encoders: u32,
+	min_width: u32,
+	max_width: u32,
+	min_height: u32,
+	max_height: u32,
+};
+
diff --git a/src/screen/drm/request/root.zig b/src/screen/drm/request/root.zig
new file mode 100644
index 0000000..7576893
--- /dev/null
+++ b/src/screen/drm/request/root.zig
@@ -0,0 +1,55 @@
+const std = @import("std");
+const os = std.os.linux;
+const cerror = @import("../../cerror.zig");
+
+pub const Resources = @import("resources.zig").Resources;
+pub const Encoder = @import("encoder.zig").Encoder;
+pub const Connector = @import("connector.zig").Connector;
+
+const crtc = @import("crtc.zig");
+pub const Crtc = crtc.Crtc;
+pub const PageFlip = crtc.PageFlip;
+
+const frame_buffer = @import("frame-buffer.zig");
+pub const CreateDumb = frame_buffer.CreateDumb;
+pub const FrameBufferCmd2 = frame_buffer.FrameBufferCmd2;
+pub const MapDumb = frame_buffer.MapDumb;
+
+
+pub const Kind = enum(u8) {
+	const Self = @This();
+
+	get_resources = 0xa0,
+	get_crtc = 0xa1,
+	set_crtc = 0xa2,
+	get_encoder = 0xa6,
+	get_connector = 0xa7,
+	remove_frame_buffer = 0xaf,
+	page_flip = 0xb0,
+	create_dumb = 0xb2,
+	map_dumb = 0xb3,
+	destroy_dumb = 0xb4,
+	add_frame_buffer2 = 0xb8,
+
+	pub fn payload(comptime self: *const Self) type {
+		return comptime switch (self.*) {
+			.get_resources => Resources,
+			.get_crtc => Crtc,
+			.set_crtc => Crtc,
+			.get_encoder => Encoder,
+			.get_connector => Connector,
+			.remove_frame_buffer => u32,
+			.page_flip => PageFlip,
+			.create_dumb => CreateDumb,
+			.map_dumb => MapDumb,
+			.destroy_dumb => u32,
+			.add_frame_buffer2 => FrameBufferCmd2,
+		};
+	}
+
+	pub fn id(comptime self: *const Self, comptime pointer_type: type) u32 {
+		const payload_type = self.payload();
+		comptime std.debug.assert(*payload_type == pointer_type);
+		return comptime os.IOCTL.IOWR('d', @intFromEnum(self.*), payload_type);
+	}
+};