Add tests for issue #5112.

Without the fix:
 - The "viewport-overzoomed" test would show "Figueroa St." jumbled in the lower half of the screen
 - The "viewport-overzoomed-single-glyph" test would show the letter "C" upside down

test/integration/render-tests/text-pitch-alignment/viewport-overzoomed-single-glyph/style.json

@@ -0,0 +1,56 @@
+{
+ "version": 8,
+ "center": [
+ -118.28162,
+ 33.86852
+ ],
+ "zoom": 21,
+ "pitch": 60,
+ "bearing": 161.5,
+ "sources": {
+ "mapbox": {
+ "type": "vector",
+ "maxzoom": 16,
+ "tiles": [
+ "local://tiles/mapbox.mapbox-streets-v7/16-11235-26208.mvt"
+ ]
+ }
+ },
+ "glyphs": "local://glyphs/{fontstack}/{range}.pbf",
+ "layers": [
+ {
+ "id": "background",
+ "type": "background",
+ "paint": {
+ "background-color": "white"
+ }
+ },
+ {
+ "id": "road-label-large",
+ "type": "symbol",
+ "source": "mapbox",
+ "source-layer": "road_label",
+ "layout": {
+ "text-size": { "base": 1, "stops": [ [ 9, 10 ], [ 20, 16 ] ] },
+ "text-max-angle": 30,
+ "symbol-spacing": 250,
+ "text-font": [
+ "Open Sans Semibold",
+ "Arial Unicode MS Bold"
+ ],
+ "symbol-placement": "line",
+ "text-padding": 1,
+ "text-rotation-alignment": "map",
+ "text-pitch-alignment": "viewport",
+ "text-field": "C",
+ "text-letter-spacing": 0.01
+ },
+ "paint": {
+ "text-color": "hsl(0, 0%, 0%)",
+ "text-halo-color": "hsla(0, 0%, 100%, 0.75)",
+ "text-halo-width": 1,
+ "text-halo-blur": 1
+ }
+ }
+ ]
+}

test/integration/render-tests/text-pitch-alignment/viewport-overzoomed/style.json

@@ -0,0 +1,56 @@
+{
+ "version": 8,
+ "metadata": {
+ "test": {
+ "height": 1024
+ }
+ },
+ "center": [
+ 50,
+ 0
+ ],
+ "zoom": 18,
+ "pitch": 60,
+ "sources": {
+ "geojson": {
+ "type": "geojson",
+ "maxzoom": 16,
+ "data": {
+ "type": "LineString",
+ "coordinates": [
+ [ 50, -90 ],
+ [ 50, 90 ]
+ ]
+ }
+ }
+ },
+ "glyphs": "local://glyphs/{fontstack}/{range}.pbf",
+ "layers": [
+ {
+ "id": "background",
+ "type": "background",
+ "paint": {
+ "background-color": "white"
+ }
+ },
+ {
+ "id": "text",
+ "type": "symbol",
+ "source": "geojson",
+ "layout": {
+ "symbol-placement": "line",
+ "symbol-spacing": 10,
+ "text-rotation-alignment": "map",
+ "text-pitch-alignment": "viewport",
+ "text-field": "Figueroa St.",
+ "text-font": [
+ "Open Sans Semibold",
+ "Arial Unicode MS Bold"
+ ]
+ },
+ "paint": {
+ "text-opacity": 1
+ }
+ }
+ ]
+}