| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTextBlob.h" |
| #include "include/core/SkTypeface.h" |
| #include "tools/ToolUtils.h" |
| #include "tools/fonts/FontToolUtils.h" |
| |
| #include <string.h> |
| |
| namespace skiagm { |
| class TextBlobBlockReordering : public GM { |
| public: |
| // This gm tests that textblobs translate properly when their draw order is different from their |
| // flush order |
| TextBlobBlockReordering() { } |
| |
| protected: |
| void onOnceBeforeDraw() override { |
| SkTextBlobBuilder builder; |
| |
| // make textblob |
| // Large text is used to trigger atlas eviction |
| SkFont font(ToolUtils::DefaultPortableTypeface(), 56); |
| font.setEdging(SkFont::Edging::kAlias); |
| const char* text = "AB"; |
| |
| SkRect bounds; |
| font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds); |
| |
| SkScalar yOffset = bounds.height(); |
| ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset - 30); |
| |
| // build |
| fBlob = builder.make(); |
| } |
| |
| SkString getName() const override { return SkString("textblobblockreordering"); } |
| |
| SkISize getISize() override { return SkISize::Make(kWidth, kHeight); } |
| |
| // This draws the same text blob 3 times. The second draw used a different xfer mode so its |
| // GrDrawOp doesn't get combined with the first and third. Ultimately, they will be flushed in |
| // the order first, third, and then second. |
| void onDraw(SkCanvas* canvas) override { |
| canvas->drawColor(SK_ColorGRAY); |
| |
| SkPaint paint; |
| canvas->translate(10, 40); |
| |
| SkRect bounds = fBlob->bounds(); |
| const int yDelta = SkScalarFloorToInt(bounds.height()) + 20; |
| const int xDelta = SkScalarFloorToInt(bounds.width()); |
| |
| canvas->drawTextBlob(fBlob, 0, 0, paint); |
| |
| canvas->translate(SkIntToScalar(xDelta), SkIntToScalar(yDelta)); |
| |
| // Draw a rect where the text should be, and then twiddle the xfermode so we don't combine. |
| SkPaint redPaint; |
| redPaint.setColor(SK_ColorRED); |
| canvas->drawRect(bounds, redPaint); |
| SkPaint srcInPaint(paint); |
| srcInPaint.setBlendMode(SkBlendMode::kSrcIn); |
| canvas->drawTextBlob(fBlob, 0, 0, srcInPaint); |
| |
| canvas->translate(SkIntToScalar(xDelta), SkIntToScalar(yDelta)); |
| canvas->drawTextBlob(fBlob, 0, 0, paint); |
| } |
| |
| private: |
| sk_sp<SkTextBlob> fBlob; |
| |
| inline static constexpr int kWidth = 275; |
| inline static constexpr int kHeight = 200; |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new TextBlobBlockReordering;) |
| } // namespace skiagm |