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opengl: render underlines using sprite system, not shaders

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This commit is contained in:
Mitchell Hashimoto
2022-11-27 15:18:03 -08:00
parent 278668c953
commit 3a248f6051
1 changed files with 28 additions and 13 deletions
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41
src/renderer/OpenGL.zig
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@ -501,12 +501,6 @@ pub fn setFontSize(self: *OpenGL, size: font.face.DesiredSize) !void {
if (std.meta.eql(self.cell_size, new_cell_size)) return;
self.cell_size = new_cell_size;
// Set the cell size of the box font
if (self.font_group.group.sprite) |*sprite| {
sprite.width = @floatToInt(u32, self.cell_size.width);
sprite.height = @floatToInt(u32, self.cell_size.height);
}
// Notify the window that the cell size changed.
_ = self.window_mailbox.push(.{
.cell_size = new_cell_size,
@ -530,6 +524,14 @@ fn resetFontMetrics(
};
log.debug("cell dimensions={}", .{metrics});
// Set details for our sprite font
font_group.group.sprite = font.sprite.Face{
.width = @floatToInt(u32, metrics.cell_width),
.height = @floatToInt(u32, metrics.cell_height),
.thickness = 2,
.underline_position = @floatToInt(u32, metrics.underline_position),
};
// Set our uniforms that rely on metrics
const pbind = try program.use();
defer pbind.unbind();
@ -1003,17 +1005,30 @@ pub fn updateCell(
}
if (cell.attrs.underline != .none) {
const sprite: font.Sprite = switch (cell.attrs.underline) {
.none => unreachable,
.single => .underline,
.double => .underline_double,
else => .underline,
};
const underline_glyph = try self.font_group.renderGlyph(
self.alloc,
font.sprite_index,
@enumToInt(sprite),
null,
);
self.cells.appendAssumeCapacity(.{
.mode = .underline,
.mode = .fg,
.grid_col = @intCast(u16, x),
.grid_row = @intCast(u16, y),
.grid_width = cell.widthLegacy(),
.glyph_x = 0,
.glyph_y = 0,
.glyph_width = 0,
.glyph_height = 0,
.glyph_offset_x = 0,
.glyph_offset_y = 0,
.glyph_x = underline_glyph.atlas_x,
.glyph_y = underline_glyph.atlas_y,
.glyph_width = underline_glyph.width,
.glyph_height = underline_glyph.height,
.glyph_offset_x = underline_glyph.offset_x,
.glyph_offset_y = underline_glyph.offset_y,
.fg_r = colors.fg.r,
.fg_g = colors.fg.g,
.fg_b = colors.fg.b,