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sprite: all rasterized sprites should have a 1px padding

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This commit is contained in:
Mitchell Hashimoto
2023-06-30 22:43:09 -07:00
parent 362eeac74b
commit 3c5be0726f
1 changed files with 25 additions and 1 deletions
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26
src/font/sprite/canvas.zig
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@ -340,7 +340,31 @@ const PixmanImpl = struct {
const width = @as(u32, @intCast(self.image.getWidth()));
const height = @as(u32, @intCast(self.image.getHeight()));
const region = try atlas.reserve(alloc, width, height);
// Allocate our texture atlas region
const region = region: {
// We need to add a 1px padding to the font so that we don't
// get fuzzy issues when blending textures.
const padding = 1;
// Get the full padded region
var region = try atlas.reserve(
alloc,
width + (padding * 2), // * 2 because left+right
height + (padding * 2), // * 2 because top+bottom
);
// Modify the region so that we remove the padding so that
// we write to the non-zero location. The data in an Altlas
// is always initialized to zero (Atlas.clear) so we don't
// need to worry about zero-ing that.
region.x += padding;
region.y += padding;
region.width -= padding * 2;
region.height -= padding * 2;
break :region region;
};
if (region.width > 0 and region.height > 0) {
const depth = atlas.format.depth();