module: event handlers are defined ahead of time
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst
Stephen Gutekanst
parent
0fc3bf6545
commit
3bfafe102d
12 changed files with 1099 additions and 967 deletions
|
|
@ -8,6 +8,12 @@ const assets = @import("assets");
|
|||
pub const name = .game_text;
|
||||
pub const Mod = mach.Mod(@This());
|
||||
|
||||
pub const events = .{
|
||||
.{ .global = .deinit, .handler = deinit },
|
||||
.{ .local = .init, .handler = init },
|
||||
.{ .local = .prepare, .handler = prepare },
|
||||
};
|
||||
|
||||
const RegionMap = std.AutoArrayHashMapUnmanaged(u21, mach.gfx.Atlas.Region);
|
||||
|
||||
texture_atlas: mach.gfx.Atlas,
|
||||
|
|
@ -16,7 +22,7 @@ ft: ft.Library,
|
|||
face: ft.Face,
|
||||
regions: RegionMap = .{},
|
||||
|
||||
pub fn deinit(
|
||||
fn deinit(
|
||||
engine: *mach.Engine.Mod,
|
||||
text_mod: *Mod,
|
||||
) !void {
|
||||
|
|
@ -27,97 +33,95 @@ pub fn deinit(
|
|||
text_mod.state.regions.deinit(engine.allocator);
|
||||
}
|
||||
|
||||
pub const local = struct {
|
||||
pub fn init(
|
||||
engine: *mach.Engine.Mod,
|
||||
text_mod: *Mod,
|
||||
) !void {
|
||||
const device = engine.state.device;
|
||||
fn init(
|
||||
engine: *mach.Engine.Mod,
|
||||
text_mod: *Mod,
|
||||
) !void {
|
||||
const device = engine.state.device;
|
||||
|
||||
// rgba32_pixels
|
||||
const img_size = gpu.Extent3D{ .width = 1024, .height = 1024 };
|
||||
// rgba32_pixels
|
||||
const img_size = gpu.Extent3D{ .width = 1024, .height = 1024 };
|
||||
|
||||
// Create a GPU texture
|
||||
const texture = device.createTexture(&.{
|
||||
.size = img_size,
|
||||
.format = .rgba8_unorm,
|
||||
.usage = .{
|
||||
.texture_binding = true,
|
||||
.copy_dst = true,
|
||||
.render_attachment = true,
|
||||
},
|
||||
});
|
||||
// Create a GPU texture
|
||||
const texture = device.createTexture(&.{
|
||||
.size = img_size,
|
||||
.format = .rgba8_unorm,
|
||||
.usage = .{
|
||||
.texture_binding = true,
|
||||
.copy_dst = true,
|
||||
.render_attachment = true,
|
||||
},
|
||||
});
|
||||
|
||||
var s = &text_mod.state;
|
||||
s.texture = texture;
|
||||
s.texture_atlas = try mach.gfx.Atlas.init(
|
||||
engine.allocator,
|
||||
img_size.width,
|
||||
.rgba,
|
||||
);
|
||||
var s = &text_mod.state;
|
||||
s.texture = texture;
|
||||
s.texture_atlas = try mach.gfx.Atlas.init(
|
||||
engine.allocator,
|
||||
img_size.width,
|
||||
.rgba,
|
||||
);
|
||||
|
||||
// TODO: state fields' default values do not work
|
||||
s.regions = .{};
|
||||
// TODO: state fields' default values do not work
|
||||
s.regions = .{};
|
||||
|
||||
s.ft = try ft.Library.init();
|
||||
s.face = try s.ft.createFaceMemory(assets.roboto_medium_ttf, 0);
|
||||
s.ft = try ft.Library.init();
|
||||
s.face = try s.ft.createFaceMemory(assets.roboto_medium_ttf, 0);
|
||||
|
||||
text_mod.send(.prepare, .{&[_]u21{ '?', '!', 'a', 'b', '#', '@', '%', '$', '&', '^', '*', '+', '=', '<', '>', '/', ':', ';', 'Q', '~' }});
|
||||
}
|
||||
text_mod.send(.prepare, .{&[_]u21{ '?', '!', 'a', 'b', '#', '@', '%', '$', '&', '^', '*', '+', '=', '<', '>', '/', ':', ';', 'Q', '~' }});
|
||||
}
|
||||
|
||||
pub fn prepare(
|
||||
engine: *mach.Engine.Mod,
|
||||
text_mod: *Mod,
|
||||
codepoints: []const u21,
|
||||
) !void {
|
||||
const device = engine.state.device;
|
||||
const queue = device.getQueue();
|
||||
var s = &text_mod.state;
|
||||
fn prepare(
|
||||
engine: *mach.Engine.Mod,
|
||||
text_mod: *Mod,
|
||||
codepoints: []const u21,
|
||||
) !void {
|
||||
const device = engine.state.device;
|
||||
const queue = device.getQueue();
|
||||
var s = &text_mod.state;
|
||||
|
||||
for (codepoints) |codepoint| {
|
||||
const font_size = 48 * 1;
|
||||
try s.face.setCharSize(font_size * 64, 0, 50, 0);
|
||||
try s.face.loadChar(codepoint, .{ .render = true });
|
||||
const glyph = s.face.glyph();
|
||||
const metrics = glyph.metrics();
|
||||
for (codepoints) |codepoint| {
|
||||
const font_size = 48 * 1;
|
||||
try s.face.setCharSize(font_size * 64, 0, 50, 0);
|
||||
try s.face.loadChar(codepoint, .{ .render = true });
|
||||
const glyph = s.face.glyph();
|
||||
const metrics = glyph.metrics();
|
||||
|
||||
const glyph_bitmap = glyph.bitmap();
|
||||
const glyph_width = glyph_bitmap.width();
|
||||
const glyph_height = glyph_bitmap.rows();
|
||||
const glyph_bitmap = glyph.bitmap();
|
||||
const glyph_width = glyph_bitmap.width();
|
||||
const glyph_height = glyph_bitmap.rows();
|
||||
|
||||
// Add 1 pixel padding to texture to avoid bleeding over other textures
|
||||
const margin = 1;
|
||||
const glyph_data = try engine.allocator.alloc([4]u8, (glyph_width + (margin * 2)) * (glyph_height + (margin * 2)));
|
||||
defer engine.allocator.free(glyph_data);
|
||||
const glyph_buffer = glyph_bitmap.buffer().?;
|
||||
for (glyph_data, 0..) |*data, i| {
|
||||
const x = i % (glyph_width + (margin * 2));
|
||||
const y = i / (glyph_width + (margin * 2));
|
||||
if (x < margin or x > (glyph_width + margin) or y < margin or y > (glyph_height + margin)) {
|
||||
data.* = [4]u8{ 0, 0, 0, 0 };
|
||||
} else {
|
||||
const alpha = glyph_buffer[((y - margin) * glyph_width + (x - margin)) % glyph_buffer.len];
|
||||
data.* = [4]u8{ 0, 0, 0, alpha };
|
||||
}
|
||||
// Add 1 pixel padding to texture to avoid bleeding over other textures
|
||||
const margin = 1;
|
||||
const glyph_data = try engine.allocator.alloc([4]u8, (glyph_width + (margin * 2)) * (glyph_height + (margin * 2)));
|
||||
defer engine.allocator.free(glyph_data);
|
||||
const glyph_buffer = glyph_bitmap.buffer().?;
|
||||
for (glyph_data, 0..) |*data, i| {
|
||||
const x = i % (glyph_width + (margin * 2));
|
||||
const y = i / (glyph_width + (margin * 2));
|
||||
if (x < margin or x > (glyph_width + margin) or y < margin or y > (glyph_height + margin)) {
|
||||
data.* = [4]u8{ 0, 0, 0, 0 };
|
||||
} else {
|
||||
const alpha = glyph_buffer[((y - margin) * glyph_width + (x - margin)) % glyph_buffer.len];
|
||||
data.* = [4]u8{ 0, 0, 0, alpha };
|
||||
}
|
||||
var glyph_atlas_region = try s.texture_atlas.reserve(engine.allocator, glyph_width + (margin * 2), glyph_height + (margin * 2));
|
||||
s.texture_atlas.set(glyph_atlas_region, @as([*]const u8, @ptrCast(glyph_data.ptr))[0 .. glyph_data.len * 4]);
|
||||
|
||||
glyph_atlas_region.x += margin;
|
||||
glyph_atlas_region.y += margin;
|
||||
glyph_atlas_region.width -= margin * 2;
|
||||
glyph_atlas_region.height -= margin * 2;
|
||||
|
||||
try s.regions.put(engine.allocator, codepoint, glyph_atlas_region);
|
||||
_ = metrics;
|
||||
}
|
||||
var glyph_atlas_region = try s.texture_atlas.reserve(engine.allocator, glyph_width + (margin * 2), glyph_height + (margin * 2));
|
||||
s.texture_atlas.set(glyph_atlas_region, @as([*]const u8, @ptrCast(glyph_data.ptr))[0 .. glyph_data.len * 4]);
|
||||
|
||||
// rgba32_pixels
|
||||
const img_size = gpu.Extent3D{ .width = 1024, .height = 1024 };
|
||||
const data_layout = gpu.Texture.DataLayout{
|
||||
.bytes_per_row = @as(u32, @intCast(img_size.width * 4)),
|
||||
.rows_per_image = @as(u32, @intCast(img_size.height)),
|
||||
};
|
||||
queue.writeTexture(&.{ .texture = s.texture }, &data_layout, &img_size, s.texture_atlas.data);
|
||||
glyph_atlas_region.x += margin;
|
||||
glyph_atlas_region.y += margin;
|
||||
glyph_atlas_region.width -= margin * 2;
|
||||
glyph_atlas_region.height -= margin * 2;
|
||||
|
||||
try s.regions.put(engine.allocator, codepoint, glyph_atlas_region);
|
||||
_ = metrics;
|
||||
}
|
||||
};
|
||||
|
||||
// rgba32_pixels
|
||||
const img_size = gpu.Extent3D{ .width = 1024, .height = 1024 };
|
||||
const data_layout = gpu.Texture.DataLayout{
|
||||
.bytes_per_row = @as(u32, @intCast(img_size.width * 4)),
|
||||
.rows_per_image = @as(u32, @intCast(img_size.height)),
|
||||
};
|
||||
queue.writeTexture(&.{ .texture = s.texture }, &data_layout, &img_size, s.texture_atlas.data);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue