win32 gui: replace D2D renderer with D3d11 shader

This commit is contained in:
Jonathan Marler 2025-01-11 22:26:21 -07:00
parent 157dc3d47c
commit 5b83619f7a
13 changed files with 1945 additions and 425 deletions

View file

@ -1,4 +1,5 @@
const std = @import("std");
const build_options = @import("build_options");
const root = @import("root");
const c = @cImport({
@ -6,7 +7,7 @@ const c = @cImport({
});
const win32 = @import("win32").everything;
const ddui = @import("ddui");
const win32ext = @import("win32ext.zig");
const cbor = @import("cbor");
const thespian = @import("thespian");
@ -17,19 +18,24 @@ const RGB = @import("color").RGB;
const input = @import("input");
const windowmsg = @import("windowmsg.zig");
const HResultError = ddui.HResultError;
const render = if (build_options.d2d) @import("d2d.zig") else @import("d3d11.zig");
const FontFace = @import("FontFace.zig");
const XY = @import("xy.zig").XY;
const WM_APP_EXIT = win32.WM_APP + 1;
const WM_APP_SET_BACKGROUND = win32.WM_APP + 2;
const WM_APP_ADJUST_FONTSIZE = win32.WM_APP + 3;
const WM_APP_SET_FONTSIZE = win32.WM_APP + 4;
const WM_APP_SET_FONTFACE = win32.WM_APP + 5;
const WM_APP_UPDATE_SCREEN = win32.WM_APP + 6;
const WM_APP_EXIT_RESULT = 0x45feaa11;
const WM_APP_SET_BACKGROUND_RESULT = 0x369a26cd;
const WM_APP_ADJUST_FONTSIZE_RESULT = 0x79aba9ef;
const WM_APP_SET_FONTSIZE_RESULT = 0x72fa44bc;
const WM_APP_SET_FONTFACE_RESULT = 0x1a49ffa8;
const WM_APP_UPDATE_SCREEN_RESULT = 0x3add213b;
pub const DropWriter = struct {
pub const WriteError = error{};
@ -58,48 +64,27 @@ const global = struct {
var init_called: bool = false;
var start_called: bool = false;
var icons: Icons = undefined;
var dwrite_factory: *win32.IDWriteFactory = undefined;
var state: ?State = null;
var d2d_factory: *win32.ID2D1Factory = undefined;
var conf: ?gui_config = null;
var fontface: ?[:0]const u16 = null;
var fontface: ?FontFace = null;
var fontsize: ?f32 = null;
var font: ?Font = null;
var text_format_editor: ddui.TextFormatCache(FontCacheParams, createTextFormatEditor) = .{};
const shared_screen = struct {
var mutex: std.Thread.Mutex = .{};
// only access arena/obj while the mutex is locked
var arena: std.heap.ArenaAllocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
var obj: vaxis.Screen = .{};
};
var screen_arena: std.heap.ArenaAllocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
var screen: vaxis.Screen = .{};
};
const window_style_ex = win32.WINDOW_EX_STYLE{
.APPWINDOW = 1,
//.ACCEPTFILES = 1,
.NOREDIRECTIONBITMAP = render.NOREDIRECTIONBITMAP,
};
const window_style = win32.WS_OVERLAPPEDWINDOW;
pub fn init() void {
std.debug.assert(!global.init_called);
global.init_called = true;
{
const hr = win32.DWriteCreateFactory(
win32.DWRITE_FACTORY_TYPE_SHARED,
win32.IID_IDWriteFactory,
@ptrCast(&global.dwrite_factory),
);
if (hr < 0) fatalHr("DWriteCreateFactory", hr);
}
{
var err: HResultError = undefined;
global.d2d_factory = ddui.createFactory(
.SINGLE_THREADED,
.{},
&err,
) catch std.debug.panic("{}", .{err});
}
render.init();
}
const Icons = struct {
@ -135,35 +120,6 @@ fn getIcons(dpi: XY(u32)) Icons {
return .{ .small = @ptrCast(small), .large = @ptrCast(large) };
}
fn d2dColorFromVAxis(color: vaxis.Cell.Color) win32.D2D_COLOR_F {
return switch (color) {
.default => .{ .r = 0, .g = 0, .b = 0, .a = 0 },
.index => |idx| blk: {
const rgb = RGB.from_u24(xterm_colors[idx]);
break :blk .{
.r = @as(f32, @floatFromInt(rgb.r)) / 255.0,
.g = @as(f32, @floatFromInt(rgb.g)) / 255.0,
.b = @as(f32, @floatFromInt(rgb.b)) / 255.0,
.a = 1,
};
},
.rgb => |rgb| .{
.r = @as(f32, @floatFromInt(rgb[0])) / 255.0,
.g = @as(f32, @floatFromInt(rgb[1])) / 255.0,
.b = @as(f32, @floatFromInt(rgb[2])) / 255.0,
.a = 1,
},
};
}
const FontCacheParams = struct {
dpi: u32,
fontsize: f32,
pub fn eql(self: FontCacheParams, other: FontCacheParams) bool {
return self.dpi == other.dpi and self.fontsize == other.fontsize;
}
};
fn getConfig() *const gui_config {
if (global.conf == null) {
global.conf, _ = root.read_config(gui_config, global.arena);
@ -177,20 +133,34 @@ fn getFieldDefault(field: std.builtin.Type.StructField) ?*const field.type {
return @alignCast(@ptrCast(field.default_value orelse return null));
}
fn getFontFace() [:0]const u16 {
fn getDefaultFontFace() FontFace {
const default = comptime getFieldDefault(
std.meta.fieldInfo(gui_config, .fontface),
) orelse @compileError("gui_config fontface is missing default");
const default_wide = win32.L(default.*);
var result: FontFace = .{ .buf = undefined, .len = default_wide.len };
@memcpy(result.buf[0..default_wide.len], default_wide);
result.buf[default_wide.len] = 0;
return result;
}
fn getFontFace() *const FontFace {
if (global.fontface == null) {
const conf = getConfig();
global.fontface = blk: {
break :blk std.unicode.utf8ToUtf16LeAllocZ(std.heap.c_allocator, conf.fontface) catch |e| {
std.log.err("failed to convert fontface name with {s}", .{@errorName(e)});
const default = comptime getFieldDefault(
std.meta.fieldInfo(gui_config, .fontface),
) orelse @compileError("fontface is missing default");
break :blk win32.L(default.*);
break :blk FontFace.initUtf8(conf.fontface) catch |e| switch (e) {
error.TooLong => {
std.log.err("fontface '{s}' is too long", .{conf.fontface});
break :blk getDefaultFontFace();
},
error.InvalidUtf8 => {
std.log.err("fontface '{s}' is invalid utf8", .{conf.fontface});
break :blk getDefaultFontFace();
},
};
};
}
return global.fontface.?;
return &(global.fontface.?);
}
fn getFontSize() f32 {
@ -200,88 +170,34 @@ fn getFontSize() f32 {
return global.fontsize.?;
}
fn createTextFormatEditor(params: FontCacheParams) *win32.IDWriteTextFormat {
var err: HResultError = undefined;
return ddui.createTextFormat(global.dwrite_factory, &err, .{
.size = win32.scaleDpi(f32, params.fontsize, params.dpi),
.family_name = getFontFace(),
}) catch std.debug.panic("{s} failed, hresult=0x{x}", .{ err.context, err.hr });
fn getFont(dpi: u32, size: f32, face: *const FontFace) render.Font {
if (global.font) |*font| {
if (font.dpi == dpi and font.size == size and font.face.eql(face))
return font.render_object;
font.render_object.deinit();
global.font = null;
}
global.font = .{
.dpi = dpi,
.size = size,
.face = face.*,
.render_object = render.Font.init(dpi, size, face),
};
return global.font.?.render_object;
}
const D2d = struct {
target: *win32.ID2D1HwndRenderTarget,
brush: *win32.ID2D1SolidColorBrush,
pub fn init(hwnd: win32.HWND, err: *HResultError) error{HResult}!D2d {
var target: *win32.ID2D1HwndRenderTarget = undefined;
const target_props = win32.D2D1_RENDER_TARGET_PROPERTIES{
.type = .DEFAULT,
.pixelFormat = .{
.format = .B8G8R8A8_UNORM,
.alphaMode = .PREMULTIPLIED,
},
.dpiX = 0,
.dpiY = 0,
.usage = .{},
.minLevel = .DEFAULT,
};
const hwnd_target_props = win32.D2D1_HWND_RENDER_TARGET_PROPERTIES{
.hwnd = hwnd,
.pixelSize = .{ .width = 0, .height = 0 },
.presentOptions = .{},
};
{
const hr = global.d2d_factory.CreateHwndRenderTarget(
&target_props,
&hwnd_target_props,
&target,
);
if (hr < 0) return err.set(hr, "CreateHwndRenderTarget");
}
errdefer _ = target.IUnknown.Release();
{
var dc: *win32.ID2D1DeviceContext = undefined;
{
const hr = target.IUnknown.QueryInterface(win32.IID_ID2D1DeviceContext, @ptrCast(&dc));
if (hr < 0) return err.set(hr, "GetDeviceContext");
}
defer _ = dc.IUnknown.Release();
// just make everything DPI aware, all applications should just do this
dc.SetUnitMode(win32.D2D1_UNIT_MODE_PIXELS);
}
var brush: *win32.ID2D1SolidColorBrush = undefined;
{
const color: win32.D2D_COLOR_F = .{ .r = 0, .g = 0, .b = 0, .a = 0 };
const hr = target.ID2D1RenderTarget.CreateSolidColorBrush(&color, null, &brush);
if (hr < 0) return err.set(hr, "CreateSolidBrush");
}
errdefer _ = brush.IUnknown.Release();
return .{
.target = target,
.brush = brush,
};
}
pub fn deinit(self: *D2d) void {
_ = self.brush.IUnknown.Release();
_ = self.target.IUnknown.Release();
}
pub fn solid(self: *const D2d, color: win32.D2D_COLOR_F) *win32.ID2D1Brush {
self.brush.SetColor(&color);
return &self.brush.ID2D1Brush;
}
const Font = struct {
dpi: u32,
size: f32,
face: FontFace,
render_object: render.Font,
};
const State = struct {
hwnd: win32.HWND,
pid: thespian.pid,
maybe_d2d: ?D2d = null,
erase_bg_done: bool = false,
render_state: render.WindowState,
scroll_delta: isize = 0,
currently_rendered_cell_size: ?XY(i32) = null,
background: ?u32 = null,
last_sizing_edge: ?win32.WPARAM = null,
bounds: ?WindowBounds = null,
};
@ -290,67 +206,6 @@ fn stateFromHwnd(hwnd: win32.HWND) *State {
return &global.state.?;
}
fn paint(
d2d: *const D2d,
background: RGB,
screen: *const vaxis.Screen,
text_format_editor: *win32.IDWriteTextFormat,
cell_size: XY(i32),
) void {
{
const color = ddui.rgb8(background.r, background.g, background.b);
d2d.target.ID2D1RenderTarget.Clear(&color);
}
for (0..screen.height) |y| {
const row_y: i32 = cell_size.y * @as(i32, @intCast(y));
for (0..screen.width) |x| {
const column_x: i32 = cell_size.x * @as(i32, @intCast(x));
const cell_index = screen.width * y + x;
const cell = &screen.buf[cell_index];
const cell_rect: win32.RECT = .{
.left = column_x,
.top = row_y,
.right = column_x + cell_size.x,
.bottom = row_y + cell_size.y,
};
ddui.FillRectangle(
&d2d.target.ID2D1RenderTarget,
cell_rect,
d2d.solid(d2dColorFromVAxis(cell.style.bg)),
);
// TODO: pre-caclulate the buffer size needed, for now this should just
// cause out-of-bounds access
var buf_wtf16: [100]u16 = undefined;
const grapheme_len = blk: {
break :blk std.unicode.wtf8ToWtf16Le(&buf_wtf16, cell.char.grapheme) catch |err| switch (err) {
error.InvalidWtf8 => {
buf_wtf16[0] = std.unicode.replacement_character;
break :blk 1;
},
};
};
const grapheme = buf_wtf16[0..grapheme_len];
if (std.mem.eql(u16, grapheme, &[_]u16{' '}))
continue;
ddui.DrawText(
&d2d.target.ID2D1RenderTarget,
grapheme,
text_format_editor,
ddui.rectFloatFromInt(cell_rect),
d2d.solid(d2dColorFromVAxis(cell.style.fg)),
.{
.CLIP = 1,
.ENABLE_COLOR_FONT = 1,
},
.NATURAL,
);
}
}
}
const WindowPlacement = struct {
dpi: XY(u32),
size: XY(i32),
@ -409,7 +264,7 @@ fn calcWindowPlacement(
.x = @min(wanted_size.x, work_size.x),
.y = @min(wanted_size.y, work_size.y),
};
const bouding_rect: win32.RECT = ddui.rectIntFromSize(.{
const bouding_rect: win32.RECT = rectIntFromSize(.{
.left = work_rect.left + @divTrunc(work_size.x - bounding_size.x, 2),
.top = work_rect.top + @divTrunc(work_size.y - bounding_size.y, 2),
.width = bounding_size.x,
@ -440,6 +295,9 @@ pub fn start() !std.Thread {
return try std.Thread.spawn(.{}, entry, .{pid});
}
fn entry(pid: thespian.pid) !void {
std.debug.assert(global.init_called);
std.debug.assert(global.start_called);
const conf = getConfig();
const maybe_monitor: ?win32.HMONITOR = blk: {
@ -472,8 +330,7 @@ fn entry(pid: thespian.pid) !void {
break :blk dpi;
};
const text_format_editor = global.text_format_editor.getOrCreate(FontCacheParams{ .dpi = @max(dpi.x, dpi.y), .fontsize = @floatFromInt(conf.fontsize) });
const cell_size = getCellSize(text_format_editor);
const cell_size = getFont(@max(dpi.x, dpi.y), getFontSize(), getFontFace()).getCellSize(i32);
const initial_placement = calcWindowPlacement(
maybe_monitor,
@max(dpi.x, dpi.y),
@ -598,45 +455,25 @@ pub fn set_fontsize(hwnd: win32.HWND, fontsize: f32) void {
}
pub fn set_fontface(hwnd: win32.HWND, fontface_utf8: []const u8) void {
const fontface = std.unicode.utf8ToUtf16LeAllocZ(std.heap.c_allocator, fontface_utf8) catch |e| {
std.log.err("failed to convert fontface name '{s}' with {s}", .{ fontface_utf8, @errorName(e) });
const fontface = FontFace.initUtf8(fontface_utf8) catch |e| {
std.log.err("failed to set fontface '{s}' with {s}", .{ fontface_utf8, @errorName(e) });
return;
};
std.debug.assert(WM_APP_SET_FONTFACE_RESULT == win32.SendMessageW(
hwnd,
WM_APP_SET_FONTFACE,
@intFromPtr(fontface.ptr),
@intCast(fontface.len),
@intFromPtr(&fontface),
0,
));
}
pub fn updateScreen(screen: *const vaxis.Screen) void {
global.shared_screen.mutex.lock();
defer global.shared_screen.mutex.unlock();
_ = global.shared_screen.arena.reset(.retain_capacity);
const buf = global.shared_screen.arena.allocator().alloc(vaxis.Cell, screen.buf.len) catch |e| oom(e);
@memcpy(buf, screen.buf);
for (buf) |*cell| {
cell.char.grapheme = global.shared_screen.arena.allocator().dupe(
u8,
cell.char.grapheme,
) catch |e| oom(e);
}
global.shared_screen.obj = .{
.width = screen.width,
.height = screen.height,
.width_pix = screen.width_pix,
.height_pix = screen.height_pix,
.buf = buf,
.cursor_row = screen.cursor_row,
.cursor_col = screen.cursor_col,
.cursor_vis = screen.cursor_vis,
.unicode = undefined,
.width_method = undefined,
.mouse_shape = screen.mouse_shape,
.cursor_shape = undefined,
};
pub fn updateScreen(hwnd: win32.HWND, screen: *const vaxis.Screen) void {
std.debug.assert(WM_APP_UPDATE_SCREEN_RESULT == win32.SendMessageW(
hwnd,
WM_APP_UPDATE_SCREEN,
@intFromPtr(screen),
0,
));
}
const WindowBounds = struct {
@ -650,8 +487,8 @@ fn updateWindowSize(
bounds_ref: *?WindowBounds,
) void {
const dpi = win32.dpiFromHwnd(hwnd);
const text_format_editor = global.text_format_editor.getOrCreate(FontCacheParams{ .dpi = dpi, .fontsize = getFontSize() });
const cell_size = getCellSize(text_format_editor);
const font = getFont(dpi, getFontSize(), getFontFace());
const cell_size = font.getCellSize(i32);
var window_rect: win32.RECT = undefined;
if (0 == win32.GetWindowRect(hwnd, &window_rect)) fatalWin32(
@ -681,35 +518,6 @@ fn updateWindowSize(
setWindowPosRect(hwnd, new_rect);
}
// NOTE: we round the text metric up to the nearest integer which
// means our background rectangles will be aligned. We accomodate
// for any gap added by doing this by centering the text.
fn getCellSize(text_format: *win32.IDWriteTextFormat) XY(i32) {
var text_layout: *win32.IDWriteTextLayout = undefined;
{
const hr = global.dwrite_factory.CreateTextLayout(
win32.L(""),
1,
text_format,
std.math.floatMax(f32),
std.math.floatMax(f32),
&text_layout,
);
if (hr < 0) fatalHr("CreateTextLayout", hr);
}
defer _ = text_layout.IUnknown.Release();
var metrics: win32.DWRITE_TEXT_METRICS = undefined;
{
const hr = text_layout.GetMetrics(&metrics);
if (hr < 0) fatalHr("GetMetrics", hr);
}
return .{
.x = @max(1, @as(i32, @intFromFloat(@floor(metrics.width)))),
.y = @max(1, @as(i32, @intFromFloat(@floor(metrics.height)))),
};
}
const CellPos = struct {
cell: XY(i32),
offset: XY(i32),
@ -757,9 +565,10 @@ fn sendMouse(
wparam: win32.WPARAM,
lparam: win32.LPARAM,
) void {
const point = ddui.pointFromLparam(lparam);
const point = win32ext.pointFromLparam(lparam);
const state = stateFromHwnd(hwnd);
const cell_size = state.currently_rendered_cell_size orelse return;
const dpi = win32.dpiFromHwnd(hwnd);
const cell_size = getFont(dpi, getFontSize(), getFontFace()).getCellSize(i32);
const cell = CellPos.init(cell_size, point.x, point.y);
switch (kind) {
.move => {
@ -807,9 +616,10 @@ fn sendMouseWheel(
wparam: win32.WPARAM,
lparam: win32.LPARAM,
) void {
const point = ddui.pointFromLparam(lparam);
const point = win32ext.pointFromLparam(lparam);
const state = stateFromHwnd(hwnd);
const cell_size = state.currently_rendered_cell_size orelse return;
const dpi = win32.dpiFromHwnd(hwnd);
const cell_size = getFont(dpi, getFontSize(), getFontFace()).getCellSize(i32);
const cell = CellPos.init(cell_size, point.x, point.y);
// const fwKeys = win32.loword(wparam);
state.scroll_delta += @as(i16, @bitCast(win32.hiword(wparam)));
@ -1159,70 +969,30 @@ fn WndProc(
return 0;
},
win32.WM_PAINT => {
const dpi = win32.dpiFromHwnd(hwnd);
const client_size = getClientSize(hwnd);
const state = stateFromHwnd(hwnd);
const err: HResultError = blk: {
var ps: win32.PAINTSTRUCT = undefined;
_ = win32.BeginPaint(hwnd, &ps) orelse return fatalWin32(
"BeginPaint",
win32.GetLastError(),
);
defer if (0 == win32.EndPaint(hwnd, &ps)) fatalWin32(
"EndPaint",
win32.GetLastError(),
);
if (state.maybe_d2d == null) {
var err: HResultError = undefined;
state.maybe_d2d = D2d.init(hwnd, &err) catch break :blk err;
}
{
const size: win32.D2D_SIZE_U = .{
.width = @intCast(client_size.x),
.height = @intCast(client_size.y),
};
const hr = state.maybe_d2d.?.target.Resize(&size);
if (hr < 0) break :blk HResultError{ .context = "D2dResize", .hr = hr };
}
state.maybe_d2d.?.target.ID2D1RenderTarget.BeginDraw();
const text_format_editor = global.text_format_editor.getOrCreate(FontCacheParams{ .dpi = dpi, .fontsize = getFontSize() });
state.currently_rendered_cell_size = getCellSize(text_format_editor);
{
global.shared_screen.mutex.lock();
defer global.shared_screen.mutex.unlock();
paint(
&state.maybe_d2d.?,
RGB.from_u24(if (state.background) |b| @intCast(0xffffff & b) else 0),
&global.shared_screen.obj,
text_format_editor,
state.currently_rendered_cell_size.?,
);
}
break :blk HResultError{
.context = "D2dEndDraw",
.hr = state.maybe_d2d.?.target.ID2D1RenderTarget.EndDraw(null, null),
};
};
if (err.hr == win32.D2DERR_RECREATE_TARGET) {
std.log.debug("D2DERR_RECREATE_TARGET", .{});
state.maybe_d2d.?.deinit();
state.maybe_d2d = null;
win32.invalidateHwnd(hwnd);
} else if (err.hr < 0) std.debug.panic("paint error: {}", .{err});
const dpi = win32.dpiFromHwnd(hwnd);
const font = getFont(dpi, getFontSize(), getFontFace());
render.paint(hwnd, &state.render_state, font, &global.screen);
return 0;
},
win32.WM_GETDPISCALEDSIZE => {
const inout_size: *win32.SIZE = @ptrFromInt(@as(usize, @bitCast(lparam)));
const new_dpi: u32 = @intCast(0xffffffff & wparam);
const text_format_editor = global.text_format_editor.getOrCreate(FontCacheParams{ .dpi = new_dpi, .fontsize = getFontSize() });
const cell_size = getCellSize(text_format_editor);
// we don't want to update the font with the new dpi until after
// the dpi change is effective, so, we get the cell size from the current font/dpi
// and re-scale it based on the new dpi ourselves
const current_dpi = win32.dpiFromHwnd(hwnd);
const font = getFont(current_dpi, getFontSize(), getFontFace());
const current_cell_size_i32 = font.getCellSize(i32);
const current_cell_size: XY(f32) = .{
.x = @floatFromInt(current_cell_size_i32.x),
.y = @floatFromInt(current_cell_size_i32.y),
};
const scale: f32 = @as(f32, @floatFromInt(new_dpi)) / @as(f32, @floatFromInt(current_dpi));
const rescaled_cell_size: XY(i32) = .{
.x = @intFromFloat(@round(current_cell_size.x * scale)),
.y = @intFromFloat(@round(current_cell_size.y * scale)),
};
const new_rect = calcWindowRect(
new_dpi,
.{
@ -1232,7 +1002,7 @@ fn WndProc(
.bottom = inout_size.cy,
},
win32.WMSZ_BOTTOMRIGHT,
cell_size,
rescaled_cell_size,
);
inout_size.* = .{
.cx = new_rect.right,
@ -1254,13 +1024,13 @@ fn WndProc(
=> {
const do_sanity_check = true;
if (do_sanity_check) {
const client_pixel_size: XY(u16) = .{
const lparam_size: XY(u16) = .{
.x = win32.loword(lparam),
.y = win32.hiword(lparam),
};
const client_size = getClientSize(hwnd);
std.debug.assert(client_pixel_size.x == client_size.x);
std.debug.assert(client_pixel_size.y == client_size.y);
const client_size = getClientSize(u16, hwnd);
std.debug.assert(lparam_size.x == client_size.x);
std.debug.assert(lparam_size.y == client_size.y);
}
sendResize(hwnd);
return 0;
@ -1281,20 +1051,6 @@ fn WndProc(
win32.invalidateHwnd(hwnd);
return 0;
},
win32.WM_ERASEBKGND => {
const state = stateFromHwnd(hwnd);
if (!state.erase_bg_done) {
state.erase_bg_done = true;
const brush = win32.CreateSolidBrush(toColorRef(.{ .r = 29, .g = 29, .b = 29 })) orelse
fatalWin32("CreateSolidBrush", win32.GetLastError());
defer deleteObject(brush);
const hdc: win32.HDC = @ptrFromInt(wparam);
var rect: win32.RECT = undefined;
if (0 == win32.GetClientRect(hwnd, &rect)) @panic("");
if (0 == win32.FillRect(hdc, &rect, brush)) @panic("");
}
return 1; // background erased
},
win32.WM_CLOSE => {
const state = stateFromHwnd(hwnd);
state.pid.send(.{ "cmd", "quit" }) catch |e| onexit(e);
@ -1305,8 +1061,10 @@ fn WndProc(
return WM_APP_EXIT_RESULT;
},
WM_APP_SET_BACKGROUND => {
const state = stateFromHwnd(hwnd);
state.background = @intCast(wparam);
render.setBackground(
&stateFromHwnd(hwnd).render_state,
RGB.from_u24(@intCast(0xffffff & wparam)),
);
win32.invalidateHwnd(hwnd);
return WM_APP_SET_BACKGROUND_RESULT;
},
@ -1328,15 +1086,40 @@ fn WndProc(
},
WM_APP_SET_FONTFACE => {
const state = stateFromHwnd(hwnd);
var fontface: [:0]const u16 = undefined;
fontface.ptr = @ptrFromInt(wparam);
fontface.len = @intCast(lparam);
if (global.fontface) |old_fontface| std.heap.c_allocator.free(old_fontface);
global.fontface = fontface;
const fontface: *FontFace = @ptrFromInt(wparam);
global.fontface = fontface.*;
updateWindowSize(hwnd, win32.WMSZ_BOTTOMRIGHT, &state.bounds);
win32.invalidateHwnd(hwnd);
return WM_APP_SET_FONTFACE_RESULT;
},
WM_APP_UPDATE_SCREEN => {
const screen: *const vaxis.Screen = @ptrFromInt(wparam);
_ = global.screen_arena.reset(.retain_capacity);
const buf = global.screen_arena.allocator().alloc(vaxis.Cell, screen.buf.len) catch |e| oom(e);
@memcpy(buf, screen.buf);
for (buf) |*cell| {
cell.char.grapheme = global.screen_arena.allocator().dupe(
u8,
cell.char.grapheme,
) catch |e| oom(e);
}
global.screen = .{
.width = screen.width,
.height = screen.height,
.width_pix = screen.width_pix,
.height_pix = screen.height_pix,
.buf = buf,
.cursor_row = screen.cursor_row,
.cursor_col = screen.cursor_col,
.cursor_vis = screen.cursor_vis,
.unicode = undefined,
.width_method = undefined,
.mouse_shape = screen.mouse_shape,
.cursor_shape = undefined,
};
win32.invalidateHwnd(hwnd);
return WM_APP_UPDATE_SCREEN_RESULT;
},
win32.WM_CREATE => {
std.debug.assert(global.state == null);
const create_struct: *win32.CREATESTRUCTW = @ptrFromInt(@as(usize, @bitCast(lparam)));
@ -1344,6 +1127,7 @@ fn WndProc(
global.state = .{
.hwnd = hwnd,
.pid = create_args.pid,
.render_state = render.WindowState.init(hwnd),
};
std.debug.assert(&(global.state.?) == stateFromHwnd(hwnd));
sendResize(hwnd);
@ -1363,32 +1147,25 @@ fn sendResize(
) void {
const dpi = win32.dpiFromHwnd(hwnd);
const state = stateFromHwnd(hwnd);
if (state.maybe_d2d == null) {
var err: HResultError = undefined;
state.maybe_d2d = D2d.init(hwnd, &err) catch std.debug.panic(
"D2d.init failed with {}",
.{err},
);
}
const single_cell_size = getCellSize(
global.text_format_editor.getOrCreate(FontCacheParams{ .dpi = @intCast(dpi), .fontsize = getFontSize() }),
);
const client_pixel_size = getClientSize(hwnd);
const client_cell_size: XY(u16) = .{
.x = @intCast(@divTrunc(client_pixel_size.x, single_cell_size.x)),
.y = @intCast(@divTrunc(client_pixel_size.y, single_cell_size.y)),
const font = getFont(dpi, getFontSize(), getFontFace());
const cell_size = font.getCellSize(u16);
const client_size = getClientSize(u16, hwnd);
const client_cell_count: XY(u16) = .{
.x = @intCast(@divTrunc(client_size.x, cell_size.x)),
.y = @intCast(@divTrunc(client_size.y, cell_size.y)),
};
std.log.debug(
"Resize Px={}x{} Cells={}x{}",
.{ client_pixel_size.x, client_pixel_size.y, client_cell_size.x, client_cell_size.y },
.{ client_size.x, client_size.y, client_cell_count.x, client_cell_count.y },
);
state.pid.send(.{
"RDR",
"Resize",
client_cell_size.x,
client_cell_size.y,
client_pixel_size.x,
client_pixel_size.y,
client_cell_count.x,
client_cell_count.y,
client_size.x,
client_size.y,
}) catch @panic("pid send failed");
}
@ -1405,13 +1182,13 @@ fn fatalHr(what: []const u8, hresult: win32.HRESULT) noreturn {
fn deleteObject(obj: ?win32.HGDIOBJ) void {
if (0 == win32.DeleteObject(obj)) fatalWin32("DeleteObject", win32.GetLastError());
}
fn getClientSize(hwnd: win32.HWND) XY(i32) {
fn getClientSize(comptime T: type, hwnd: win32.HWND) XY(T) {
var rect: win32.RECT = undefined;
if (0 == win32.GetClientRect(hwnd, &rect))
fatalWin32("GetClientRect", win32.GetLastError());
std.debug.assert(rect.left == 0);
std.debug.assert(rect.top == 0);
return .{ .x = rect.right, .y = rect.bottom };
return .{ .x = @intCast(rect.right), .y = @intCast(rect.bottom) };
}
fn calcWindowRect(
@ -1495,6 +1272,15 @@ fn getClientInset(dpi: u32) XY(i32) {
};
}
fn rectIntFromSize(args: struct { left: i32, top: i32, width: i32, height: i32 }) win32.RECT {
return .{
.left = args.left,
.top = args.top,
.right = args.left + args.width,
.bottom = args.top + args.height,
};
}
fn setWindowPosRect(hwnd: win32.HWND, rect: win32.RECT) void {
if (0 == win32.SetWindowPos(
hwnd,
@ -1506,50 +1292,3 @@ fn setWindowPosRect(hwnd: win32.HWND, rect: win32.RECT) void {
.{ .NOZORDER = 1 },
)) fatalWin32("SetWindowPos", win32.GetLastError());
}
pub fn XY(comptime T: type) type {
return struct {
x: T,
y: T,
pub fn init(x: T, y: T) @This() {
return .{ .x = x, .y = y };
}
};
}
const xterm_colors: [256]u24 = .{
0x000000, 0x800000, 0x008000, 0x808000, 0x000080, 0x800080, 0x008080, 0xc0c0c0,
0x808080, 0xff0000, 0x00ff00, 0xffff00, 0x0000ff, 0xff00ff, 0x00ffff, 0xffffff,
0x000000, 0x00005f, 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, 0x008787, 0x0087af,
0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
0x00d700, 0x00d75f, 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
0x870000, 0x87005f, 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, 0x878787, 0x8787af,
0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
0x87d700, 0x87d75f, 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
0xd70000, 0xd7005f, 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, 0xff0087, 0xff00af,
0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
0xff8700, 0xff875f, 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
0x080808, 0x121212, 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
0x585858, 0x606060, 0x666666, 0x767676, 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee,
};