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Remove bbox guard

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It's probably not necessary.

This development still work in progress.
This commit is contained in:
Raph Levien 2020-06-03 20:59:19 -07:00
parent 7f4a6523a8
commit e1aa9b2f5d
2 changed files with 12 additions and 16 deletions
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28
piet-gpu/shader/coarse.comp
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@ -413,22 +413,18 @@ void main() {
// should probably be stored in the annotated element.
uint path_ix = element_ix;
Path path = Path_read(PathRef(path_ix * Path_size));
// It may be we have a strong guarantee this will always be `true`, but
// I prefer not to take chances.
if (tile_x >= path.bbox.x && tile_x < path.bbox.z && tile_y >= path.bbox.y && tile_y < path.bbox.w) {
uint stride = path.bbox.z - path.bbox.x;
uint tile_subix = (tile_y - path.bbox.y) * stride + tile_x - path.bbox.x;
Tile tile = Tile_read(Tile_index(path.tiles, tile_subix));
if (tile.tile.offset != 0) {
AnnoStroke stroke = Annotated_Stroke_read(ref);
CmdStroke cmd_stroke;
cmd_stroke.tile_ref = tile.tile.offset;
cmd_stroke.half_width = 0.5 * stroke.linewidth;
cmd_stroke.rgba_color = stroke.rgba_color;
alloc_cmd(cmd_ref, cmd_limit);
Cmd_Stroke_write(cmd_ref, cmd_stroke);
cmd_ref.offset += Cmd_size;
}
uint stride = path.bbox.z - path.bbox.x;
uint tile_subix = (tile_y - path.bbox.y) * stride + tile_x - path.bbox.x;
Tile tile = Tile_read(Tile_index(path.tiles, tile_subix));
if (tile.tile.offset != 0) {
AnnoStroke stroke = Annotated_Stroke_read(ref);
CmdStroke cmd_stroke;
cmd_stroke.tile_ref = tile.tile.offset;
cmd_stroke.half_width = 0.5 * stroke.linewidth;
cmd_stroke.rgba_color = stroke.rgba_color;
alloc_cmd(cmd_ref, cmd_limit);
Cmd_Stroke_write(cmd_ref, cmd_stroke);
cmd_ref.offset += Cmd_size;
}
break;
}

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piet-gpu/shader/coarse.spv
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