7571f9e490
Mechanically updated via Xcode "Replace Regular Expression":
typedef (.*) INHERITED;
-->
using INHERITED = $1;
The ClangTidy approach generated an even larger CL which would have
required a significant amount of hand-tweaking to be usable.
Change-Id: I671dc9d9efdf6d60151325c8d4d13fad7e10a15b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/314999
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
387 lines
13 KiB
C++
387 lines
13 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm/gm.h"
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#include "include/core/SkBlurTypes.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontStyle.h"
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#include "include/core/SkFontTypes.h"
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#include "include/core/SkMaskFilter.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPoint.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTextBlob.h"
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#include "include/core/SkTypeface.h"
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#include "include/core/SkTypes.h"
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#include "include/private/SkTemplates.h"
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#include "tools/Resources.h"
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#include <string.h>
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#include <utility>
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static void getGlyphPositions(const SkFont& font, const uint16_t glyphs[],
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int count, SkScalar x, SkScalar y, SkPoint pos[]) {
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SkAutoSTMalloc<128, SkScalar> widthStorage(count);
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SkScalar* widths = widthStorage.get();
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font.getWidths(glyphs, count, widths);
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for (int i = 0; i < count; ++i) {
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pos[i].set(x, y);
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x += widths[i];
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}
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}
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static void applyKerning(SkPoint pos[], const int32_t adjustments[], int count,
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const SkFont& font) {
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SkScalar scale = font.getSize() / font.getTypefaceOrDefault()->getUnitsPerEm();
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SkScalar globalAdj = 0;
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for (int i = 0; i < count - 1; ++i) {
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globalAdj += adjustments[i] * scale;
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pos[i + 1].fX += globalAdj;
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}
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}
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static void drawKernText(SkCanvas* canvas, const void* text, size_t len,
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SkScalar x, SkScalar y, const SkFont& font, const SkPaint& paint) {
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SkTypeface* face = font.getTypefaceOrDefault();
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if (!face) {
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canvas->drawSimpleText(text, len, SkTextEncoding::kUTF8, x, y, font, paint);
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return;
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}
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SkAutoSTMalloc<128, uint16_t> glyphStorage(len);
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uint16_t* glyphs = glyphStorage.get();
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int glyphCount = font.textToGlyphs(text, len, SkTextEncoding::kUTF8, glyphs, len);
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if (glyphCount < 1) {
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return;
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}
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SkAutoSTMalloc<128, int32_t> adjustmentStorage(glyphCount - 1);
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int32_t* adjustments = adjustmentStorage.get();
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if (!face->getKerningPairAdjustments(glyphs, glyphCount, adjustments)) {
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canvas->drawSimpleText(text, len, SkTextEncoding::kUTF8, x, y, font, paint);
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return;
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}
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SkTextBlobBuilder builder;
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auto rec = builder.allocRunPos(font, glyphCount);
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memcpy(rec.glyphs, glyphs, glyphCount * sizeof(SkGlyphID));
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getGlyphPositions(font, glyphs, glyphCount, x, y, rec.points());
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applyKerning(rec.points(), adjustments, glyphCount, font);
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canvas->drawTextBlob(builder.make(), 0, 0, paint);
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}
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static constexpr SkFontStyle gStyles[] = {
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SkFontStyle::Normal(),
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SkFontStyle::Bold(),
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SkFontStyle::Italic(),
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SkFontStyle::BoldItalic(),
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};
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constexpr int gStylesCount = SK_ARRAY_COUNT(gStyles);
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class TypefaceStylesGM : public skiagm::GM {
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sk_sp<SkTypeface> fFaces[gStylesCount];
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bool fApplyKerning;
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public:
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TypefaceStylesGM(bool applyKerning) : fApplyKerning(applyKerning) {}
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protected:
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void onOnceBeforeDraw() override {
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for (int i = 0; i < gStylesCount; i++) {
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fFaces[i] = SkTypeface::MakeFromName(nullptr, gStyles[i]);
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}
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}
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SkString onShortName() override {
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SkString name("typefacestyles");
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if (fApplyKerning) {
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name.append("_kerning");
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}
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return name;
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}
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SkISize onISize() override {
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return SkISize::Make(640, 480);
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}
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void onDraw(SkCanvas* canvas) override {
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SkFont font;
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font.setSize(30);
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const char* text = fApplyKerning ? "Type AWAY" : "Hamburgefons";
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const size_t textLen = strlen(text);
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SkScalar x = SkIntToScalar(10);
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SkScalar dy = font.getMetrics(nullptr);
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SkScalar y = dy;
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if (fApplyKerning) {
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font.setSubpixel(true);
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} else {
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font.setLinearMetrics(true);
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}
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SkPaint paint;
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for (int i = 0; i < gStylesCount; i++) {
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font.setTypeface(fFaces[i]);
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canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, x, y, font, paint);
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if (fApplyKerning) {
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drawKernText(canvas, text, textLen, x + 240, y, font, paint);
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}
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y += dy;
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}
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}
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private:
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using INHERITED = skiagm::GM;
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};
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DEF_GM( return new TypefaceStylesGM(false); )
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DEF_GM( return new TypefaceStylesGM(true); )
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////////////////////////////////////////////////////////////////////////////////
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static void draw_typeface_rendering_gm(SkCanvas* canvas, sk_sp<SkTypeface> face, SkGlyphID glyph) {
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struct AliasType {
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SkFont::Edging edging;
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bool inLayer;
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} constexpr aliasTypes[] {
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#ifndef SK_BUILD_FOR_IOS
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// This gm crashes on iOS when drawing an embedded bitmap when requesting aliased rendering.
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// The crash looks like
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// libTrueTypeScaler.dylib`<redacted> + 80
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// stop reason = EXC_BAD_ACCESS (code=EXC_ARM_DA_ALIGN, address=...)
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// -> 0x330b19d0 <+80>: strd r2, r3, [r5, #36]
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// 0x330b19d4 <+84>: movs r3, #0x0
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// 0x330b19d6 <+86>: add r2, sp, #0x28
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// 0x330b19d8 <+88>: ldr r0, [r4, #0x4]
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// Disable testing embedded bitmaps on iOS for now.
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// See https://bug.skia.org/5530 .
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{ SkFont::Edging::kAlias , false },
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#endif
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{ SkFont::Edging::kAntiAlias , false },
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{ SkFont::Edging::kSubpixelAntiAlias, false },
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{ SkFont::Edging::kAntiAlias , true },
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{ SkFont::Edging::kSubpixelAntiAlias, true },
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};
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// The hintgasp.ttf is designed for the following sizes to be different.
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// GASP_DOGRAY 0x0002 0<=ppem<=10
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// GASP_SYMMETRIC_SMOOTHING 0x0008 0<=ppem<=10
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// GASP_GRIDFIT 0x0001 11<=ppem<=12
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// GASP_SYMMETRIC_GRIDFIT 0x0004 11<=ppem<=12
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// GASP_DOGRAY|GASP_GRIDFIT 0x0003 13<=ppem<=14
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// GASP_SYMMETRIC_SMOOTHING|GASP_SYMMETRIC_GRIDFIT 0x000C 13<=ppem<=14
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// (neither) 0x0000 15<=ppem
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// Odd sizes have embedded bitmaps.
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constexpr SkScalar textSizes[] = { 9, 10, 11, 12, 13, 14, 15, 16 };
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constexpr SkFontHinting hintingTypes[] = {
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SkFontHinting::kNone,
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SkFontHinting::kSlight,
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SkFontHinting::kNormal,
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SkFontHinting::kFull
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};
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struct SubpixelType {
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bool requested;
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SkVector offset;
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} constexpr subpixelTypes[] = {
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{ false, { 0.00, 0.00 } },
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{ true , { 0.00, 0.00 } },
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{ true , { 0.25, 0.00 } },
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{ true , { 0.25, 0.25 } },
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};
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constexpr bool rotateABitTypes[] = { false, true };
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SkScalar y = 0; // The baseline of the previous output
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{
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SkPaint paint;
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SkFont font(face);
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font.setEmbeddedBitmaps(true);
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SkScalar x = 0;
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SkScalar xMax = x;
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SkScalar xBase = 0;
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for (const SubpixelType subpixel : subpixelTypes) {
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y = 0;
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font.setSubpixel(subpixel.requested);
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for (const AliasType& alias : aliasTypes) {
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font.setEdging(alias.edging);
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SkAutoCanvasRestore acr(canvas, false);
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if (alias.inLayer) {
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canvas->saveLayer(nullptr, &paint);
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}
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for (const SkScalar& textSize : textSizes) {
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x = xBase + 5;
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font.setSize(textSize);
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SkScalar dy = SkScalarCeilToScalar(font.getMetrics(nullptr));
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y += dy;
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for (const SkFontHinting& hinting : hintingTypes) {
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font.setHinting(hinting);
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for (const bool& rotateABit : rotateABitTypes) {
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SkAutoCanvasRestore acr(canvas, true);
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if (rotateABit) {
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canvas->rotate(2, x + subpixel.offset.x(),
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y + subpixel.offset.y());
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}
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canvas->drawSimpleText(&glyph, sizeof(glyph), SkTextEncoding::kGlyphID,
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x + subpixel.offset.x(),
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y + subpixel.offset.y(), font, paint);
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SkScalar dx = SkScalarCeilToScalar(font.measureText(
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&glyph, sizeof(glyph), SkTextEncoding::kGlyphID)) + 5;
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x += dx;
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xMax = std::max(x, xMax);
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}
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}
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}
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y += 10;
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}
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xBase = xMax;
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}
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}
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constexpr struct StyleTests {
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SkPaint::Style style;
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SkScalar strokeWidth;
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} styleTypes[] = {
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{ SkPaint::kFill_Style, 0.0f},
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{ SkPaint::kStroke_Style, 0.0f},
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{ SkPaint::kStroke_Style, 0.5f},
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{ SkPaint::kStrokeAndFill_Style, 1.0f},
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};
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constexpr bool fakeBoldTypes[] = { false, true };
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{
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SkPaint paint;
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SkFont font(face, 16);
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SkScalar x = 0;
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for (const bool& fakeBold : fakeBoldTypes) {
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SkScalar dy = SkScalarCeilToScalar(font.getMetrics(nullptr));
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y += dy;
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x = 5;
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font.setEmbolden(fakeBold);
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for (const AliasType& alias : aliasTypes) {
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font.setEdging(alias.edging);
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SkAutoCanvasRestore acr(canvas, false);
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if (alias.inLayer) {
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canvas->saveLayer(nullptr, &paint);
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}
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for (const StyleTests& style : styleTypes) {
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paint.setStyle(style.style);
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paint.setStrokeWidth(style.strokeWidth);
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canvas->drawSimpleText(&glyph, sizeof(glyph), SkTextEncoding::kGlyphID,
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x, y, font, paint);
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SkScalar dx = SkScalarCeilToScalar(font.measureText(
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&glyph, sizeof(glyph), SkTextEncoding::kGlyphID)) + 5;
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x += dx;
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}
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}
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y += 10;
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}
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}
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constexpr struct MaskTests {
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SkBlurStyle style;
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SkScalar sigma;
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} maskTypes[] = {
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{ SkBlurStyle::kNormal_SkBlurStyle, 0.0f},
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{ SkBlurStyle::kSolid_SkBlurStyle, 0.0f},
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{ SkBlurStyle::kOuter_SkBlurStyle, 0.0f},
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{ SkBlurStyle::kInner_SkBlurStyle, 0.0f},
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{ SkBlurStyle::kNormal_SkBlurStyle, 0.5f},
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{ SkBlurStyle::kSolid_SkBlurStyle, 0.5f},
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{ SkBlurStyle::kOuter_SkBlurStyle, 0.5f},
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{ SkBlurStyle::kInner_SkBlurStyle, 0.5f},
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{ SkBlurStyle::kNormal_SkBlurStyle, 2.0f},
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{ SkBlurStyle::kSolid_SkBlurStyle, 2.0f},
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{ SkBlurStyle::kOuter_SkBlurStyle, 2.0f},
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{ SkBlurStyle::kInner_SkBlurStyle, 2.0f},
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};
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{
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SkPaint paint;
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SkFont font(face, 16);
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SkScalar x = 0;
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{
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for (const AliasType& alias : aliasTypes) {
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SkScalar dy = SkScalarCeilToScalar(font.getMetrics(nullptr));
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y += dy;
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x = 5;
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font.setEdging(alias.edging);
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SkAutoCanvasRestore acr(canvas, false);
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if (alias.inLayer) {
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canvas->saveLayer(nullptr, &paint);
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}
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for (const MaskTests& mask : maskTypes) {
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paint.setMaskFilter(SkMaskFilter::MakeBlur(mask.style, mask.sigma));
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canvas->drawSimpleText(&glyph, sizeof(glyph), SkTextEncoding::kGlyphID,
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x, y, font, paint);
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SkScalar dx = SkScalarCeilToScalar(font.measureText(
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&glyph, sizeof(glyph), SkTextEncoding::kGlyphID)) + 5;
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x += dx;
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}
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paint.setMaskFilter(nullptr);
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}
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y += 10;
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}
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}
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}
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DEF_SIMPLE_GM(typefacerendering, canvas, 640, 840) {
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if (sk_sp<SkTypeface> face = MakeResourceAsTypeface("fonts/hintgasp.ttf")) {
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draw_typeface_rendering_gm(canvas, face, face->unicharToGlyph('A'));
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// Should draw nothing and not do anything undefined.
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draw_typeface_rendering_gm(canvas, face, 0xFFFF);
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}
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}
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// Type1 fonts don't currently work in Skia on Windows.
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#ifndef SK_BUILD_FOR_WIN
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DEF_SIMPLE_GM(typefacerendering_pfa, canvas, 640, 840) {
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if (sk_sp<SkTypeface> face = MakeResourceAsTypeface("fonts/Roboto2-Regular.pfa")) {
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draw_typeface_rendering_gm(canvas, face, face->unicharToGlyph('O'));
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}
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}
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DEF_SIMPLE_GM(typefacerendering_pfb, canvas, 640, 840) {
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if (sk_sp<SkTypeface> face = MakeResourceAsTypeface("fonts/Roboto2-Regular.pfb")) {
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draw_typeface_rendering_gm(canvas, face, face->unicharToGlyph('O'));
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}
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}
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#endif
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