remove mode namespace and condense api

This commit is contained in:
Jackson Netherwood-Imig
2026-01-28 14:28:44 -08:00
parent f40252c485
commit a57ac9e7e6
3 changed files with 404 additions and 451 deletions
+4 -4
View File
@@ -5,9 +5,9 @@ pub fn main(init: std.process.Init) !void {
const io = init.io;
const gpa = init.gpa;
const card = try drm.mode.Card.openAuto(io);
const card = try drm.Card.openAuto(io);
defer card.close(io);
const res = try card.getResourcesAlloc(gpa);
const res = try card.getModesettingResourcesAlloc(gpa);
defer res.deinit(gpa);
const connector = try chooseConnector(card, gpa, res.connectors);
@@ -25,10 +25,10 @@ pub fn main(init: std.process.Init) !void {
}
fn chooseConnector(
card: drm.mode.Card,
card: drm.Card,
gpa: std.mem.Allocator,
connectors: []const u32,
) !drm.mode.Connector {
) !drm.Connector {
for (connectors) |id| {
const connector = try card.getConnectorAlloc(gpa, id);
if (connector.connection == .connected) return connector;
+400 -8
View File
@@ -1,11 +1,10 @@
const std = @import("std");
const format = @import("format.zig");
const fmt = @import("format.zig");
const log = std.log.scoped(.drm);
pub const sys = @import("sys.zig");
pub const mode = @import("mode.zig");
pub const Format = format.Format;
pub const FormatModifiers = format.FormatModifiers;
pub const Format = fmt.Format;
pub const FormatModifiers = fmt.FormatModifiers;
pub const Card = struct {
handle: std.Io.File,
@@ -39,10 +38,6 @@ pub const Card = struct {
self.handle.close(io);
}
pub inline fn modeHandle(self: Card) mode.Card {
return .{ .handle = self.handle };
}
pub fn handleEvents(
self: Card,
io: std.Io,
@@ -68,6 +63,403 @@ pub const Card = struct {
try callback(self, event, args);
}
}
pub const GetResourcesError = sys.IoctlError || error{OutOfMemory};
pub fn getModesettingResourcesAlloc(self: Card, gpa: std.mem.Allocator) GetResourcesError!ModesettingResources {
while (true) {
var res = std.mem.zeroes(sys.mode.CardRes);
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
var ret = ModesettingResources{
.min_width = res.min_width,
.max_width = res.max_width,
.min_height = res.min_height,
.max_height = res.max_height,
.fbs = &.{},
.crtcs = &.{},
.connectors = &.{},
.encoders = &.{},
};
ret.fbs = try gpa.alloc(u32, res.count_fbs);
errdefer gpa.free(ret.fbs);
res.fb_id_ptr = @intFromPtr(ret.fbs.ptr);
ret.crtcs = try gpa.alloc(u32, res.count_crtcs);
errdefer gpa.free(ret.crtcs);
res.crtc_id_ptr = @intFromPtr(ret.crtcs.ptr);
ret.connectors = try gpa.alloc(u32, res.count_connectors);
errdefer gpa.free(ret.connectors);
res.connector_id_ptr = @intFromPtr(ret.connectors.ptr);
ret.encoders = try gpa.alloc(u32, res.count_encoders);
errdefer gpa.free(ret.encoders);
res.encoder_id_ptr = @intFromPtr(ret.encoders.ptr);
const cached = res;
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
if (cached.count_fbs < res.count_fbs or
cached.count_crtcs < res.count_crtcs or
cached.count_connectors < res.count_connectors or
cached.count_encoders < res.count_encoders)
{
gpa.free(ret.encoders);
gpa.free(ret.connectors);
gpa.free(ret.crtcs);
gpa.free(ret.fbs);
continue;
}
return ret;
}
}
pub fn getModesettingResourcesBuffered(
self: Card,
fbs: []u32,
crtcs: []u32,
connectors: []u32,
encoders: []u32,
) GetResourcesError!ModesettingResources {
var res = sys.mode.CardRes{
.min_width = 0,
.max_width = 0,
.min_height = 0,
.max_height = 0,
.count_fbs = @intCast(fbs.len),
.fb_id_ptr = @intFromPtr(fbs.ptr),
.count_crtcs = @intCast(crtcs.len),
.crtc_id_ptr = @intFromPtr(crtcs.ptr),
.count_connectors = @intCast(connectors.len),
.connector_id_ptr = @intFromPtr(connectors.ptr),
.count_encoders = @intCast(encoders.len),
.encoder_id_ptr = @intFromPtr(encoders.ptr),
};
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
if (res.count_fbs > fbs.len or
res.count_crtcs > crtcs.len or
res.count_connectors > connectors.len or
res.count_encoders > encoders.len)
return error.OutOfMemory;
return ModesettingResources{
.min_width = res.min_width,
.max_width = res.max_width,
.min_height = res.min_height,
.max_height = res.max_height,
.fbs = fbs[0..res.count_fbs],
.crtcs = crtcs[0..res.count_crtcs],
.connectors = connectors[0..res.count_connectors],
.encoders = encoders[0..res.count_encoders],
};
}
pub const GetConnectorError = sys.IoctlError || error{OutOfMemory};
pub fn getConnectorAlloc(self: Card, gpa: std.mem.Allocator, id: u32) GetConnectorError!Connector {
while (true) {
var get_conn = std.mem.zeroInit(sys.mode.GetConnector, .{ .connector_id = id });
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
const cached = get_conn;
const encoders = try gpa.alloc(u32, get_conn.count_encoders);
errdefer gpa.free(encoders);
const modes = try gpa.alloc(sys.mode.ModeInfo, get_conn.count_modes);
errdefer gpa.free(modes);
const props = try gpa.alloc(u32, get_conn.count_props);
errdefer gpa.free(props);
const prop_values = try gpa.alloc(u64, get_conn.count_props);
errdefer gpa.free(prop_values);
get_conn.encoders_ptr = @intFromPtr(encoders.ptr);
get_conn.modes_ptr = @intFromPtr(modes.ptr);
get_conn.props_ptr = @intFromPtr(props.ptr);
get_conn.prop_values_ptr = @intFromPtr(prop_values.ptr);
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
if (cached.count_encoders < get_conn.count_encoders or
cached.count_modes < get_conn.count_modes or
cached.count_props < get_conn.count_props)
{
gpa.free(prop_values);
gpa.free(props);
gpa.free(modes);
gpa.free(encoders);
continue;
}
return Connector{
.id = id,
.encoder_id = get_conn.encoder_id,
.connection = @enumFromInt(get_conn.connection),
// Unsure why libdrm does this conversion,
// but we'll follow suite for compatability.
.subpixel = @enumFromInt(get_conn.subpixel + 1),
.encoders = encoders[0..get_conn.count_encoders],
.modes = modes[0..get_conn.count_modes],
.props = props[0..get_conn.count_props],
.prop_values = prop_values[0..get_conn.count_props],
.mm_width = get_conn.mm_width,
.mm_height = get_conn.mm_height,
.type = get_conn.connector_type,
.type_id = get_conn.connector_type_id,
};
}
}
pub fn getConnectorBuffered(
self: Card,
encoders: []u32,
modes: []sys.mode.ModeInfo,
props: []u32,
prop_values: []u64,
id: u32,
) GetConnectorError!Connector {
std.debug.assert(props.len == prop_values.len);
var get_conn = std.mem.zeroInit(sys.mode.GetConnector, .{
.connector_id = id,
.count_encoders = @as(u32, @intCast(encoders.len)),
.encoders_ptr = @intFromPtr(encoders.ptr),
.count_modes = @as(u32, @intCast(modes.len)),
.modes_ptr = @intFromPtr(modes.ptr),
.count_props = @as(u32, @intCast(props.len)),
.props_ptr = @intFromPtr(props.ptr),
.prop_values_ptr = @intFromPtr(prop_values.ptr),
});
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
if (get_conn.count_encoders > encoders.len or
get_conn.count_modes > modes.len or
get_conn.count_props > props.len)
return error.OutOfMemory;
return Connector{
.id = id,
.encoder_id = get_conn.encoder_id,
.connection = @enumFromInt(get_conn.connection),
.subpixel = @enumFromInt(get_conn.subpixel + 1),
.encoders = encoders[0..get_conn.count_encoders],
.modes = modes[0..get_conn.count_modes],
.props = props[0..get_conn.count_props],
.prop_values = prop_values[0..get_conn.count_props],
.mm_width = get_conn.mm_width,
.mm_height = get_conn.mm_height,
.type = get_conn.connector_type,
.type_id = get_conn.connector_type_id,
};
}
pub fn getEncoder(self: Card, id: u32) sys.IoctlError!Encoder {
var get_encoder = std.mem.zeroInit(sys.mode.GetEncoder, .{ .encoder_id = id });
try sys.ioctl(self.handle.handle, .mode_getencoder, &get_encoder);
return Encoder{
.id = id,
.type = get_encoder.encoder_type,
.crtc_id = get_encoder.crtc_id,
.possible_crtcs = get_encoder.possible_crtcs,
.possible_clones = get_encoder.possible_clones,
};
}
pub const GetCrtcError = sys.IoctlError;
pub fn getCrtc(self: Card, id: u32) GetCrtcError!Crtc {
var crtc = std.mem.zeroInit(sys.mode.Crtc, .{ .crtc_id = id });
try sys.ioctl(self.handle.handle, .mode_getcrtc, &crtc);
return Crtc{
.id = id,
.fb_id = crtc.fb_id,
.x = crtc.x,
.y = crtc.y,
.gamma_size = crtc.gamma_size,
.mode = if (crtc.mode_valid != 0) crtc.mode else null,
};
}
pub fn setCrtc(
self: Card,
id: u32,
fb_id: u32,
x: u32,
y: u32,
connectors: []u32,
mode: ?sys.mode.ModeInfo,
) sys.IoctlError!void {
var crtc = std.mem.zeroInit(sys.mode.Crtc, .{
.crtc_id = id,
.fb_id = fb_id,
.x = x,
.y = y,
.count_connectors = @as(u32, @intCast(connectors.len)),
.set_connectors_ptr = @intFromPtr(connectors.ptr),
});
if (mode) |m| {
crtc.mode_valid = 1;
crtc.mode = m;
}
try sys.ioctl(self.handle.handle, .mode_setcrtc, &crtc);
}
pub fn createDumbBuffer(self: Card, width: u32, height: u32, bpp: u32) sys.IoctlError!DumbBuffer {
var create = std.mem.zeroInit(sys.mode.CreateDumb, .{
.width = width,
.height = height,
.bpp = bpp,
});
try sys.ioctl(self.handle.handle, .mode_create_dumb, &create);
return DumbBuffer{
.handle = create.handle,
.width = create.width,
.height = create.height,
.stride = create.pitch,
.size = @intCast(create.size),
};
}
pub fn destroyDumbBuffer(self: Card, handle: u32) sys.IoctlError!void {
var destroy = sys.mode.DestroyDumb{ .handle = handle };
try sys.ioctl(self.handle.handle, .mode_destroy_dumb, &destroy);
}
pub fn mapDumbBuffer(self: Card, dumb: DumbBuffer, offset: usize) sys.IoctlError!usize {
var map = sys.mode.MapDumb{ .handle = dumb.handle, .pad = 0, .offset = offset };
try sys.ioctl(self.handle.handle, .mode_map_dumb, &map);
return @intCast(map.offset);
}
pub fn addFb2(
self: Card,
width: u32,
height: u32,
format: fmt.Format,
handles: [4]u32,
pitches: [4]u32,
offsets: [4]u32,
flags: u32, // FIXME: add flags type
) sys.IoctlError!u32 {
var cmd = std.mem.zeroInit(sys.mode.FbCmd2, .{
.width = width,
.height = height,
.pixel_format = @intFromEnum(format),
.handles = handles,
.pitches = pitches,
.offsets = offsets,
.flags = flags,
});
try sys.ioctl(self.handle.handle, .mode_addfb2, &cmd);
return cmd.fb_id;
}
pub fn removeFb(self: Card, fb: u32) sys.IoctlError!void {
try sys.ioctl(self.handle.handle, .mode_rmfb, &fb);
}
pub fn pageFlip(
self: Card,
crtc_id: u32,
fb_id: u32,
flags: sys.mode.PageFlipFlags,
data: ?*anyopaque,
) sys.IoctlError!void {
var flip = sys.mode.CrtcPageFlip{
.crtc_id = crtc_id,
.fb_id = fb_id,
.flags = flags,
.reserved = 0,
.user_data = @intFromPtr(data),
};
try sys.ioctl(self.handle.handle, .mode_page_flip, &flip);
}
};
pub const Connection = enum(u32) {
connected = 1,
disconnected = 2,
unknown = 3,
};
pub const Subpixel = enum(u32) {
unknown = 1,
horizontal_rgb = 2,
horizontal_bgr = 3,
vertical_rgb = 4,
vertical_bgr = 5,
none = 6,
};
pub const ModesettingResources = struct {
min_width: u32,
max_width: u32,
min_height: u32,
max_height: u32,
fbs: []const u32,
crtcs: []const u32,
connectors: []const u32,
encoders: []const u32,
pub fn deinit(self: ModesettingResources, gpa: std.mem.Allocator) void {
gpa.free(self.encoders);
gpa.free(self.connectors);
gpa.free(self.crtcs);
gpa.free(self.fbs);
}
};
pub const Connector = struct {
id: u32,
encoder_id: u32,
connection: Connection,
mm_width: u32,
mm_height: u32,
subpixel: Subpixel,
encoders: []const u32,
modes: []const sys.mode.ModeInfo,
props: []const u32,
prop_values: []const u64,
type: sys.mode.ConnectorType,
type_id: u32,
pub fn deinit(self: Connector, gpa: std.mem.Allocator) void {
gpa.free(self.prop_values);
gpa.free(self.props);
gpa.free(self.modes);
gpa.free(self.encoders);
}
};
pub const Encoder = struct {
id: u32,
type: sys.mode.EncoderType,
crtc_id: u32,
possible_crtcs: u32,
possible_clones: u32,
};
pub const Crtc = struct {
id: u32,
fb_id: u32,
x: u32,
y: u32,
gamma_size: u32,
mode: ?sys.mode.ModeInfo,
};
pub const DumbBuffer = struct {
handle: u32,
width: u32,
height: u32,
stride: u32,
size: usize,
};
pub const Event = union(enum) {
-439
View File
@@ -1,439 +0,0 @@
const std = @import("std");
const sys = @import("sys.zig");
const base = @import("drm.zig");
const fmt = @import("format.zig");
const Allocator = std.mem.Allocator;
pub const Card = struct {
handle: std.Io.File,
pub const OpenError = std.Io.File.OpenError || std.Io.Dir.OpenError;
pub fn open(io: std.Io, path: []const u8) OpenError!Card {
if (std.fs.path.isAbsolute(path))
return Card{ .handle = try std.Io.Dir.openFileAbsolute(io, path, .{ .mode = .read_write }) };
const dir = try std.Io.Dir.openDirAbsolute(io, "/dev/dri", .{});
defer dir.close(io);
return Card{ .handle = try dir.openFile(io, path, .{ .mode = .read_write }) };
}
pub const OpenAutoError = OpenError || std.Io.Dir.Iterator.Error || error{NoDevicesFound};
pub fn openAuto(io: std.Io) OpenAutoError!Card {
const dir = try std.Io.Dir.openDirAbsolute(io, "/dev/dri", .{ .iterate = true });
defer dir.close(io);
var it = dir.iterateAssumeFirstIteration();
while (try it.next(io)) |entry| if (entry.kind == .character_device)
return Card{ .handle = try dir.openFile(io, entry.name, .{ .mode = .read_write }) };
return error.NoDevicesFound;
}
pub fn close(self: Card, io: std.Io) void {
self.handle.close(io);
}
pub inline fn baseHandle(self: Card) base.Card {
return .{ .handle = self.handle };
}
pub const GetResourcesError = sys.IoctlError || error{OutOfMemory};
pub fn getResourcesAlloc(self: Card, gpa: Allocator) GetResourcesError!Resources {
while (true) {
var res = std.mem.zeroes(sys.mode.CardRes);
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
var ret = Resources{
.min_width = res.min_width,
.max_width = res.max_width,
.min_height = res.min_height,
.max_height = res.max_height,
.fbs = &.{},
.crtcs = &.{},
.connectors = &.{},
.encoders = &.{},
};
ret.fbs = try gpa.alloc(u32, res.count_fbs);
errdefer gpa.free(ret.fbs);
res.fb_id_ptr = @intFromPtr(ret.fbs.ptr);
ret.crtcs = try gpa.alloc(u32, res.count_crtcs);
errdefer gpa.free(ret.crtcs);
res.crtc_id_ptr = @intFromPtr(ret.crtcs.ptr);
ret.connectors = try gpa.alloc(u32, res.count_connectors);
errdefer gpa.free(ret.connectors);
res.connector_id_ptr = @intFromPtr(ret.connectors.ptr);
ret.encoders = try gpa.alloc(u32, res.count_encoders);
errdefer gpa.free(ret.encoders);
res.encoder_id_ptr = @intFromPtr(ret.encoders.ptr);
const cached = res;
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
if (cached.count_fbs < res.count_fbs or
cached.count_crtcs < res.count_crtcs or
cached.count_connectors < res.count_connectors or
cached.count_encoders < res.count_encoders)
{
gpa.free(ret.encoders);
gpa.free(ret.connectors);
gpa.free(ret.crtcs);
gpa.free(ret.fbs);
continue;
}
return ret;
}
}
pub fn getResourcesBuffered(
self: Card,
fbs: []u32,
crtcs: []u32,
connectors: []u32,
encoders: []u32,
) GetResourcesError!Resources {
var res = sys.mode.CardRes{
.min_width = 0,
.max_width = 0,
.min_height = 0,
.max_height = 0,
.count_fbs = @intCast(fbs.len),
.fb_id_ptr = @intFromPtr(fbs.ptr),
.count_crtcs = @intCast(crtcs.len),
.crtc_id_ptr = @intFromPtr(crtcs.ptr),
.count_connectors = @intCast(connectors.len),
.connector_id_ptr = @intFromPtr(connectors.ptr),
.count_encoders = @intCast(encoders.len),
.encoder_id_ptr = @intFromPtr(encoders.ptr),
};
try sys.ioctl(self.handle.handle, .mode_getresources, &res);
if (res.count_fbs > fbs.len or
res.count_crtcs > crtcs.len or
res.count_connectors > connectors.len or
res.count_encoders > encoders.len)
return error.OutOfMemory;
return Resources{
.min_width = res.min_width,
.max_width = res.max_width,
.min_height = res.min_height,
.max_height = res.max_height,
.fbs = fbs[0..res.count_fbs],
.crtcs = crtcs[0..res.count_crtcs],
.connectors = connectors[0..res.count_connectors],
.encoders = encoders[0..res.count_encoders],
};
}
pub const GetConnectorError = sys.IoctlError || error{OutOfMemory};
pub fn getConnectorAlloc(self: Card, gpa: Allocator, id: u32) GetConnectorError!Connector {
while (true) {
var get_conn = std.mem.zeroInit(sys.mode.GetConnector, .{ .connector_id = id });
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
const cached = get_conn;
const encoders = try gpa.alloc(u32, get_conn.count_encoders);
errdefer gpa.free(encoders);
const modes = try gpa.alloc(sys.mode.ModeInfo, get_conn.count_modes);
errdefer gpa.free(modes);
const props = try gpa.alloc(u32, get_conn.count_props);
errdefer gpa.free(props);
const prop_values = try gpa.alloc(u64, get_conn.count_props);
errdefer gpa.free(prop_values);
get_conn.encoders_ptr = @intFromPtr(encoders.ptr);
get_conn.modes_ptr = @intFromPtr(modes.ptr);
get_conn.props_ptr = @intFromPtr(props.ptr);
get_conn.prop_values_ptr = @intFromPtr(prop_values.ptr);
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
if (cached.count_encoders < get_conn.count_encoders or
cached.count_modes < get_conn.count_modes or
cached.count_props < get_conn.count_props)
{
gpa.free(prop_values);
gpa.free(props);
gpa.free(modes);
gpa.free(encoders);
continue;
}
return Connector{
.id = id,
.encoder_id = get_conn.encoder_id,
.connection = @enumFromInt(get_conn.connection),
// Unsure why libdrm does this conversion,
// but we'll follow suite for compatability.
.subpixel = @enumFromInt(get_conn.subpixel + 1),
.encoders = encoders[0..get_conn.count_encoders],
.modes = modes[0..get_conn.count_modes],
.props = props[0..get_conn.count_props],
.prop_values = prop_values[0..get_conn.count_props],
.mm_width = get_conn.mm_width,
.mm_height = get_conn.mm_height,
.type = get_conn.connector_type,
.type_id = get_conn.connector_type_id,
};
}
}
pub fn getConnectorBuffered(
self: Card,
encoders: []u32,
modes: []sys.mode.ModeInfo,
props: []u32,
prop_values: []u64,
id: u32,
) GetConnectorError!Connector {
std.debug.assert(props.len == prop_values.len);
var get_conn = std.mem.zeroInit(sys.mode.GetConnector, .{
.connector_id = id,
.count_encoders = @as(u32, @intCast(encoders.len)),
.encoders_ptr = @intFromPtr(encoders.ptr),
.count_modes = @as(u32, @intCast(modes.len)),
.modes_ptr = @intFromPtr(modes.ptr),
.count_props = @as(u32, @intCast(props.len)),
.props_ptr = @intFromPtr(props.ptr),
.prop_values_ptr = @intFromPtr(prop_values.ptr),
});
try sys.ioctl(self.handle.handle, .mode_getconnector, &get_conn);
if (get_conn.count_encoders > encoders.len or
get_conn.count_modes > modes.len or
get_conn.count_props > props.len)
return error.OutOfMemory;
return Connector{
.id = id,
.encoder_id = get_conn.encoder_id,
.connection = @enumFromInt(get_conn.connection),
.subpixel = @enumFromInt(get_conn.subpixel + 1),
.encoders = encoders[0..get_conn.count_encoders],
.modes = modes[0..get_conn.count_modes],
.props = props[0..get_conn.count_props],
.prop_values = prop_values[0..get_conn.count_props],
.mm_width = get_conn.mm_width,
.mm_height = get_conn.mm_height,
.type = get_conn.connector_type,
.type_id = get_conn.connector_type_id,
};
}
pub fn getEncoder(self: Card, id: u32) sys.IoctlError!Encoder {
var get_encoder = std.mem.zeroInit(sys.mode.GetEncoder, .{ .encoder_id = id });
try sys.ioctl(self.handle.handle, .mode_getencoder, &get_encoder);
return Encoder{
.id = id,
.type = get_encoder.encoder_type,
.crtc_id = get_encoder.crtc_id,
.possible_crtcs = get_encoder.possible_crtcs,
.possible_clones = get_encoder.possible_clones,
};
}
pub const GetCrtcError = sys.IoctlError;
pub fn getCrtc(self: Card, id: u32) GetCrtcError!Crtc {
var crtc = std.mem.zeroInit(sys.mode.Crtc, .{ .crtc_id = id });
try sys.ioctl(self.handle.handle, .mode_getcrtc, &crtc);
return Crtc{
.id = id,
.fb_id = crtc.fb_id,
.x = crtc.x,
.y = crtc.y,
.gamma_size = crtc.gamma_size,
.mode = if (crtc.mode_valid != 0) crtc.mode else null,
};
}
pub fn setCrtc(
self: Card,
id: u32,
fb_id: u32,
x: u32,
y: u32,
connectors: []u32,
mode: ?sys.mode.ModeInfo,
) sys.IoctlError!void {
var crtc = std.mem.zeroInit(sys.mode.Crtc, .{
.crtc_id = id,
.fb_id = fb_id,
.x = x,
.y = y,
.count_connectors = @as(u32, @intCast(connectors.len)),
.set_connectors_ptr = @intFromPtr(connectors.ptr),
});
if (mode) |m| {
crtc.mode_valid = 1;
crtc.mode = m;
}
try sys.ioctl(self.handle.handle, .mode_setcrtc, &crtc);
}
pub fn createDumbBuffer(self: Card, width: u32, height: u32, bpp: u32) sys.IoctlError!DumbBuffer {
var create = std.mem.zeroInit(sys.mode.CreateDumb, .{
.width = width,
.height = height,
.bpp = bpp,
});
try sys.ioctl(self.handle.handle, .mode_create_dumb, &create);
return DumbBuffer{
.handle = create.handle,
.width = create.width,
.height = create.height,
.stride = create.pitch,
.size = @intCast(create.size),
};
}
pub fn destroyDumbBuffer(self: Card, handle: u32) sys.IoctlError!void {
var destroy = sys.mode.DestroyDumb{ .handle = handle };
try sys.ioctl(self.handle.handle, .mode_destroy_dumb, &destroy);
}
pub fn mapDumbBuffer(self: Card, dumb: DumbBuffer, offset: usize) sys.IoctlError!usize {
var map = sys.mode.MapDumb{ .handle = dumb.handle, .pad = 0, .offset = offset };
try sys.ioctl(self.handle.handle, .mode_map_dumb, &map);
return @intCast(map.offset);
}
pub fn addFb2(
self: Card,
width: u32,
height: u32,
format: fmt.Format,
handles: [4]u32,
pitches: [4]u32,
offsets: [4]u32,
flags: u32, // FIXME: add flags type
) sys.IoctlError!u32 {
var cmd = std.mem.zeroInit(sys.mode.FbCmd2, .{
.width = width,
.height = height,
.pixel_format = @intFromEnum(format),
.handles = handles,
.pitches = pitches,
.offsets = offsets,
.flags = flags,
});
try sys.ioctl(self.handle.handle, .mode_addfb2, &cmd);
return cmd.fb_id;
}
pub fn removeFb(self: Card, fb: u32) sys.IoctlError!void {
try sys.ioctl(self.handle.handle, .mode_rmfb, &fb);
}
pub fn pageFlip(
self: Card,
crtc_id: u32,
fb_id: u32,
flags: sys.mode.PageFlipFlags,
data: ?*anyopaque,
) sys.IoctlError!void {
var flip = sys.mode.CrtcPageFlip{
.crtc_id = crtc_id,
.fb_id = fb_id,
.flags = flags,
.reserved = 0,
.user_data = @intFromPtr(data),
};
try sys.ioctl(self.handle.handle, .mode_page_flip, &flip);
}
};
pub const Connection = enum(u32) {
connected = 1,
disconnected = 2,
unknown = 3,
};
pub const Subpixel = enum(u32) {
unknown = 1,
horizontal_rgb = 2,
horizontal_bgr = 3,
vertical_rgb = 4,
vertical_bgr = 5,
none = 6,
};
pub const Resources = struct {
min_width: u32,
max_width: u32,
min_height: u32,
max_height: u32,
fbs: []const u32,
crtcs: []const u32,
connectors: []const u32,
encoders: []const u32,
pub fn deinit(self: Resources, gpa: Allocator) void {
gpa.free(self.encoders);
gpa.free(self.connectors);
gpa.free(self.crtcs);
gpa.free(self.fbs);
}
};
pub const Connector = struct {
id: u32,
encoder_id: u32,
connection: Connection,
mm_width: u32,
mm_height: u32,
subpixel: Subpixel,
encoders: []const u32,
modes: []const sys.mode.ModeInfo,
props: []const u32,
prop_values: []const u64,
type: sys.mode.ConnectorType,
type_id: u32,
pub fn deinit(self: Connector, gpa: Allocator) void {
gpa.free(self.prop_values);
gpa.free(self.props);
gpa.free(self.modes);
gpa.free(self.encoders);
}
};
pub const Encoder = struct {
id: u32,
type: sys.mode.EncoderType,
crtc_id: u32,
possible_crtcs: u32,
possible_clones: u32,
};
pub const Crtc = struct {
id: u32,
fb_id: u32,
x: u32,
y: u32,
gamma_size: u32,
mode: ?sys.mode.ModeInfo,
};
pub const DumbBuffer = struct {
handle: u32,
width: u32,
height: u32,
stride: u32,
size: usize,
};