SkTextBlob: Begin implementing Extended TextBlob API
BUG=skia:5434
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2084533004
Review-Url: https://codereview.chromium.org/2084533004
diff --git a/tests/TextBlobTest.cpp b/tests/TextBlobTest.cpp
index 6107024..82bbb21 100644
--- a/tests/TextBlobTest.cpp
+++ b/tests/TextBlobTest.cpp
@@ -349,3 +349,40 @@
DEF_TEST(TextBlob_paint, reporter) {
TextBlobTester::TestPaintProps(reporter);
}
+
+DEF_TEST(TextBlob_extended, reporter) {
+ SkTextBlobBuilder textBlobBuilder;
+ SkPaint paint;
+ const char text1[] = "Foo";
+ const char text2[] = "Bar";
+
+ int glyphCount = paint.textToGlyphs(text1, strlen(text1), nullptr);
+ SkAutoTMalloc<uint16_t> glyphs(glyphCount);
+ (void)paint.textToGlyphs(text1, strlen(text1), glyphs.get());
+ paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
+
+ auto run = textBlobBuilder.allocRunText(
+ paint, glyphCount, 0, 0, SkToInt(strlen(text2)), SkString(), nullptr);
+ memcpy(run.glyphs, glyphs.get(), sizeof(uint16_t) * glyphCount);
+ memcpy(run.utf8text, text2, strlen(text2));
+ for (int i = 0; i < glyphCount; ++i) {
+ run.clusters[i] = SkTMin(SkToU32(i), SkToU32(strlen(text2)));
+ }
+ sk_sp<const SkTextBlob> blob(textBlobBuilder.build());
+ REPORTER_ASSERT(reporter, blob);
+
+ for (SkTextBlobRunIterator it(blob.get()); !it.done(); it.next()) {
+ REPORTER_ASSERT(reporter, it.glyphCount() == (uint32_t)glyphCount);
+ for (uint32_t i = 0; i < it.glyphCount(); ++i) {
+ REPORTER_ASSERT(reporter, it.glyphs()[i] == glyphs[i]);
+ }
+ REPORTER_ASSERT(reporter, SkTextBlob::kDefault_Positioning == it.positioning());
+ REPORTER_ASSERT(reporter, (SkPoint{0.0f, 0.0f}) == it.offset());
+ REPORTER_ASSERT(reporter, it.textSize() > 0);
+ REPORTER_ASSERT(reporter, it.clusters());
+ for (uint32_t i = 0; i < it.glyphCount(); ++i) {
+ REPORTER_ASSERT(reporter, i == it.clusters()[i]);
+ }
+ REPORTER_ASSERT(reporter, 0 == strncmp(text2, it.text(), it.textSize()));
+ }
+}