DEF_TEST(DrawText, reporter) {
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setTextSize(SkIntToScalar(20));
SkIRect drawTextRect = SkIRect::MakeWH(64, 64);
SkBitmap drawTextBitmap;
create(&drawTextBitmap, drawTextRect);
SkCanvas drawTextCanvas(drawTextBitmap);
SkIRect drawPosTextRect = SkIRect::MakeWH(64, 64);
SkBitmap drawPosTextBitmap;
create(&drawPosTextBitmap, drawPosTextRect);
SkCanvas drawPosTextCanvas(drawPosTextBitmap);
// Two test cases "A" for the normal path through the code, and " " to check the
// early return path.
const char* cases[] = {"A", " "};
for (auto c : cases) {
for (float offsetY = 0.0f; offsetY < 1.0f; offsetY += (1.0f / 16.0f)) {
for (float offsetX = 0.0f; offsetX < 1.0f; offsetX += (1.0f / 16.0f)) {
SkPoint point = SkPoint::Make(25.0f + offsetX,
25.0f + offsetY);
for (int align = 0; align < SkPaint::kAlignCount; ++align) {
paint.setTextAlign(static_cast<SkPaint::Align>(align));
for (unsigned int flags = 0; flags < (1 << 3); ++flags) {
static const unsigned int antiAliasFlag = 1;
static const unsigned int subpixelFlag = 1 << 1;
static const unsigned int lcdFlag = 1 << 2;
paint.setAntiAlias(SkToBool(flags & antiAliasFlag));
paint.setSubpixelText(SkToBool(flags & subpixelFlag));
paint.setLCDRenderText(SkToBool(flags & lcdFlag));
// Test: drawText and drawPosText draw the same.
drawBG(&drawTextCanvas);
drawTextCanvas.drawText(c, 1, point.fX, point.fY, paint);
drawBG(&drawPosTextCanvas);
drawPosTextCanvas.drawPosText(c, 1, &point, paint);
REPORTER_ASSERT(reporter,
compare(drawTextBitmap, drawTextRect,
drawPosTextBitmap, drawPosTextRect));
}
}
}
}
}
}
static void test_drawText(skiatest::Reporter* reporter) {
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setTextSize(SkIntToScalar(20));
SkIRect drawTextRect = SkIRect::MakeWH(64, 64);
SkBitmap drawTextBitmap;
create(&drawTextBitmap, drawTextRect, SkBitmap::kARGB_8888_Config);
SkCanvas drawTextCanvas(drawTextBitmap);
SkIRect drawPosTextRect = SkIRect::MakeWH(64, 64);
SkBitmap drawPosTextBitmap;
create(&drawPosTextBitmap, drawPosTextRect, SkBitmap::kARGB_8888_Config);
SkCanvas drawPosTextCanvas(drawPosTextBitmap);
for (float offsetY = 0.0f; offsetY < 1.0f; offsetY += (1.0f / 16.0f)) {
for (float offsetX = 0.0f; offsetX < 1.0f; offsetX += (1.0f / 16.0f)) {
SkPoint point = SkPoint::Make(SkFloatToScalar(25.0f + offsetX),
SkFloatToScalar(25.0f + offsetY));
for (int align = 0; align < SkPaint::kAlignCount; ++align) {
paint.setTextAlign(static_cast<SkPaint::Align>(align));
for (unsigned int flags = 0; flags < (1 << 3); ++flags) {
static const unsigned int antiAliasFlag = 1;
static const unsigned int subpixelFlag = 1 << 1;
static const unsigned int lcdFlag = 1 << 2;
paint.setAntiAlias(SkToBool(flags & antiAliasFlag));
paint.setSubpixelText(SkToBool(flags & subpixelFlag));
paint.setLCDRenderText(SkToBool(flags & lcdFlag));
// Test: drawText and drawPosText draw the same.
drawBG(&drawTextCanvas);
drawTextCanvas.drawText("A", 1, point.fX, point.fY, paint);
drawBG(&drawPosTextCanvas);
drawPosTextCanvas.drawPosText("A", 1, &point, paint);
REPORTER_ASSERT(reporter,
compare(drawTextBitmap, drawTextRect,
drawPosTextBitmap, drawPosTextRect));
}
}
}
}
}
/** Test that drawing glyphs with empty paths is different from drawing glyphs without paths. */
DEF_TEST(DrawText_dashout, reporter) {
SkIRect size = SkIRect::MakeWH(64, 64);
SkBitmap drawTextBitmap;
create(&drawTextBitmap, size);
SkCanvas drawTextCanvas(drawTextBitmap);
SkBitmap drawDashedTextBitmap;
create(&drawDashedTextBitmap, size);
SkCanvas drawDashedTextCanvas(drawDashedTextBitmap);
SkBitmap emptyBitmap;
create(&emptyBitmap, size);
SkCanvas emptyCanvas(emptyBitmap);
SkPoint point = SkPoint::Make(25.0f, 25.0f);
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setTextSize(SkIntToScalar(20));
paint.setAntiAlias(true);
paint.setSubpixelText(true);
paint.setLCDRenderText(true);
paint.setStyle(SkPaint::kStroke_Style);
// Draw a stroked "A" without a dash which will draw something.
drawBG(&drawTextCanvas);
drawTextCanvas.drawText("A", 1, point.fX, point.fY, paint);
// Draw an "A" but with a dash which will never draw anything.
paint.setStrokeWidth(2);
constexpr SkScalar bigInterval = 10000;
static constexpr SkScalar intervals[] = { 1, bigInterval };
paint.setPathEffect(SkDashPathEffect::Make(intervals, SK_ARRAY_COUNT(intervals), 2));
drawBG(&drawDashedTextCanvas);
drawDashedTextCanvas.drawText("A", 1, point.fX, point.fY, paint);
// Draw nothing.
drawBG(&emptyCanvas);
REPORTER_ASSERT(reporter, !compare(drawTextBitmap, size, emptyBitmap, size));
REPORTER_ASSERT(reporter, compare(drawDashedTextBitmap, size, emptyBitmap, size));
}