diff options
Diffstat (limited to 'chromium/third_party/skia/gm/atlastext.cpp')
| -rw-r--r-- | chromium/third_party/skia/gm/atlastext.cpp | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/chromium/third_party/skia/gm/atlastext.cpp b/chromium/third_party/skia/gm/atlastext.cpp deleted file mode 100644 index 626b46bdf24..00000000000 --- a/chromium/third_party/skia/gm/atlastext.cpp +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright 2017 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "include/core/SkTypes.h" - -#if SK_SUPPORT_ATLAS_TEXT - -#include "gm/gm.h" -#include "include/atlastext/SkAtlasTextContext.h" -#include "include/atlastext/SkAtlasTextFont.h" -#include "include/atlastext/SkAtlasTextRenderer.h" -#include "include/atlastext/SkAtlasTextTarget.h" -#include "include/core/SkBitmap.h" -#include "include/core/SkBlendMode.h" -#include "include/core/SkCanvas.h" -#include "include/core/SkFont.h" -#include "include/core/SkFontStyle.h" -#include "include/core/SkFontTypes.h" -#include "include/core/SkMatrix.h" -#include "include/core/SkPaint.h" -#include "include/core/SkPoint.h" -#include "include/core/SkRefCnt.h" -#include "include/core/SkScalar.h" -#include "include/core/SkSize.h" -#include "include/core/SkString.h" -#include "include/core/SkTypeface.h" -#include "include/utils/SkRandom.h" -#include "src/utils/SkUTF.h" -#include "tools/ToolUtils.h" -#include "tools/gpu/atlastext/GLTestAtlasTextRenderer.h" -#include "tools/gpu/atlastext/TestAtlasTextRenderer.h" - -#include <memory> -#include <utility> - -class GrContext; -class GrRenderTargetContext; - -// GM that draws text using the Atlas Text interface offscreen and then blits that to the canvas. - -static SkScalar draw_string(SkAtlasTextTarget* target, const SkString& text, SkScalar x, SkScalar y, - uint32_t color, sk_sp<SkTypeface> typeface, float size) { - if (!text.size()) { - return x; - } - auto atlas_font = SkAtlasTextFont::Make(typeface, size); - int cnt = SkUTF::CountUTF8(text.c_str(), text.size()); - std::unique_ptr<SkGlyphID[]> glyphs(new SkGlyphID[cnt]); - - // Using a paint to get the positions for each glyph. - SkFont font; - font.setSize(size); - font.setTypeface(std::move(typeface)); - - font.textToGlyphs(text.c_str(), text.size(), SkTextEncoding::kUTF8, glyphs.get(), cnt); - - std::unique_ptr<SkScalar[]> widths(new SkScalar[cnt]); - font.getWidths(glyphs.get(), cnt, widths.get()); - - std::unique_ptr<SkPoint[]> positions(new SkPoint[cnt]); - positions[0] = {x, y}; - for (int i = 1; i < cnt; ++i) { - positions[i] = {positions[i - 1].fX + widths[i - 1], y}; - } - - target->drawText(glyphs.get(), positions.get(), cnt, color, *atlas_font); - - // Return the width of the of draw. - return positions[cnt - 1].fX + widths[cnt - 1] - positions[0].fX; -} - -class AtlasTextGM : public skiagm::GpuGM { -public: - AtlasTextGM() = default; - -protected: - SkString onShortName() override { return SkString("atlastext"); } - - SkISize onISize() override { return SkISize::Make(kSize, kSize); } - - void onOnceBeforeDraw() override { - fRenderer = sk_gpu_test::MakeGLTestAtlasTextRenderer(); - if (!fRenderer) { - return; - } - fContext = SkAtlasTextContext::Make(fRenderer); - auto targetHandle = fRenderer->makeTargetHandle(kSize, kSize); - if (!targetHandle) { - return; - } - - fTarget = SkAtlasTextTarget::Make(fContext, kSize, kSize, targetHandle); - - fTypefaces[0] = ToolUtils::create_portable_typeface("serif", SkFontStyle::Italic()); - fTypefaces[1] = ToolUtils::create_portable_typeface("sans-serif", SkFontStyle::Italic()); - fTypefaces[2] = ToolUtils::create_portable_typeface("serif", SkFontStyle::Normal()); - fTypefaces[3] = ToolUtils::create_portable_typeface("sans-serif", SkFontStyle::Normal()); - fTypefaces[4] = ToolUtils::create_portable_typeface("serif", SkFontStyle::Bold()); - fTypefaces[5] = ToolUtils::create_portable_typeface("sans-serif", SkFontStyle::Bold()); - } - - DrawResult onDraw(GrContext*, - GrRenderTargetContext*, - SkCanvas* canvas, - SkString* errorMsg) override { - if (!fRenderer) { - *errorMsg = "No renderer... probably not supported."; - return DrawResult::kSkip; - } - if (!fTarget || !fTarget->handle()) { - *errorMsg = "No target... we can't continue."; - return DrawResult::kFail; - } - fRenderer->clearTarget(fTarget->handle(), 0xFF808080); - auto bmp = this->drawText(); - SkPaint paint; - paint.setBlendMode(SkBlendMode::kSrc); - canvas->drawBitmap(bmp, 0, 0); - return DrawResult::kOk; - } - -private: - SkBitmap drawText() { - static const int kSizes[] = {8, 13, 18, 23, 30}; - - static const SkString kTexts[] = {SkString("ABCDEFGHIJKLMNOPQRSTUVWXYZ"), - SkString("abcdefghijklmnopqrstuvwxyz"), - SkString("0123456789"), - SkString("!@#$%^&*()<>[]{}")}; - SkScalar x = 0; - SkScalar y = 10; - - SkRandom random; - do { - for (auto s : kSizes) { - auto size = 2 * s; - for (const auto& typeface : fTypefaces) { - for (const auto& text : kTexts) { - // Choose a random color but don't let alpha be too small to see. - uint32_t color = random.nextU() | 0x40000000; - fTarget->save(); - // Randomly add a little bit of perspective - if (random.nextBool()) { - SkMatrix persp; - persp.reset(); - persp.setPerspY(0.0005f); - persp.preTranslate(-x, -y + s); - persp.postTranslate(x, y - s); - fTarget->concat(persp); - } - // Randomly switch between positioning with a matrix vs x, y passed to draw. - SkScalar drawX = x, drawY = y; - if (random.nextBool()) { - fTarget->translate(x, y); - drawX = drawY = 0; - } - x += size + - draw_string(fTarget.get(), text, drawX, drawY, color, typeface, size); - x = SkScalarCeilToScalar(x); - fTarget->restore(); - // Flush periodically to test continued drawing after a flush. - if ((random.nextU() % 8) == 0) { - fTarget->flush(); - } - if (x + 100 > kSize) { - x = 0; - y += SkScalarCeilToScalar(size + 3); - if (y > kSize) { - fTarget->flush(); - return fRenderer->readTargetHandle(fTarget->handle()); - } - } - } - } - } - } while (true); - } - - static constexpr int kSize = 1280; - - sk_sp<SkTypeface> fTypefaces[6]; - sk_sp<sk_gpu_test::TestAtlasTextRenderer> fRenderer; - std::unique_ptr<SkAtlasTextTarget> fTarget; - sk_sp<SkAtlasTextContext> fContext; - - typedef GM INHERITED; -}; - -constexpr int AtlasTextGM::kSize; - -////////////////////////////////////////////////////////////////////////////// - -DEF_GM(return new AtlasTextGM;) - -#endif |