1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2013 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "gm.h" 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "sk_tool_utils.h" 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "Resources.h" 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkBlurImageFilter.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkCanvas.h" 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkColorFilterImageFilter.h" 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkColorMatrixFilter.h" 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkGradientShader.h" 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkStream.h" 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkTypeface.h" 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Spits out a dummy gradient to test blur with shader on paint 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic sk_sp<SkShader> MakeLinear() { 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot constexpr SkPoint kPts[] = { { 0, 0 }, { 32, 32 } }; 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot constexpr SkScalar kPos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot constexpr SkColor kColors[] = {0x80F00080, 0xF0F08000, 0x800080F0 }; 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return SkGradientShader::MakeLinear(kPts, kColors, kPos, SK_ARRAY_COUNT(kColors), 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkShader::kClamp_TileMode); 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic sk_sp<SkImageFilter> make_grayscale(sk_sp<SkImageFilter> input) { 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar matrix[20]; 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot memset(matrix, 0, 20 * sizeof(SkScalar)); 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot matrix[0] = matrix[5] = matrix[10] = 0.2126f; 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot matrix[1] = matrix[6] = matrix[11] = 0.7152f; 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot matrix[2] = matrix[7] = matrix[12] = 0.0722f; 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot matrix[18] = 1.0f; 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkColorFilter> filter(SkColorFilter::MakeMatrixFilterRowMajor255(matrix)); 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return SkColorFilterImageFilter::Make(std::move(filter), std::move(input)); 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic sk_sp<SkImageFilter> make_blur(float amount, sk_sp<SkImageFilter> input) { 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return SkBlurImageFilter::Make(amount, amount, std::move(input)); 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic sk_sp<SkColorFilter> make_color_filter() { 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return SkColorMatrixFilter::MakeLightingFilter(SkColorSetRGB(0x00, 0x80, 0xFF), 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkColorSetRGB(0xFF, 0x20, 0x00)); 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotnamespace skiagm { 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotclass ColorEmojiGM : public GM { 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotpublic: 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot ColorEmojiGM() { } 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotprotected: 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot struct EmojiFont { 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkTypeface> typeface; 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const char* text; 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } emojiFont; 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot virtual void onOnceBeforeDraw() override { 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot emojiFont.typeface = sk_tool_utils::emoji_typeface(); 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot emojiFont.text = sk_tool_utils::emoji_sample_text(); 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString onShortName() override { 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString name("coloremoji"); 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot name.append(sk_tool_utils::platform_font_manager()); 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return name; 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkISize onISize() override { return SkISize::Make(650, 1200); } 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 75fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onDraw(SkCanvas* canvas) override { 76fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 77fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawColor(sk_tool_utils::color_to_565(SK_ColorGRAY)); 78fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 79fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint paint; 80fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTypeface(emojiFont.typeface); 81fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const char* text = emojiFont.text; 82fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 83fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // draw text at different point sizes 84fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot constexpr SkScalar textSizes[] = { 10, 30, 50, }; 85fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint::FontMetrics metrics; 86fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar y = 0; 87fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (const bool& fakeBold : { false, true }) { 88fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setFakeBoldText(fakeBold); 89fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (const SkScalar& textSize : textSizes) { 90fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTextSize(textSize); 91fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.getFontMetrics(&metrics); 92fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += -metrics.fAscent; 93fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawString(text, 10, y, paint); 94fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += metrics.fDescent + metrics.fLeading; 95fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 96fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 97fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 98fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += 20; 99fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar savedY = y; 100fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // draw with shaders and image filters 101fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int makeLinear = 0; makeLinear < 2; makeLinear++) { 102fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int makeBlur = 0; makeBlur < 2; makeBlur++) { 103fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int makeGray = 0; makeGray < 2; makeGray++) { 104fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int makeMode = 0; makeMode < 2; ++makeMode) { 105fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int alpha = 0; alpha < 2; ++alpha) { 106fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint shaderPaint; 107fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setTypeface(sk_ref_sp(paint.getTypeface())); 108fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (SkToBool(makeLinear)) { 109fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setShader(MakeLinear()); 110fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 111fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 112fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (SkToBool(makeBlur) && SkToBool(makeGray)) { 113fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkImageFilter> grayScale(make_grayscale(nullptr)); 114fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkImageFilter> blur(make_blur(3.0f, std::move(grayScale))); 115fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setImageFilter(std::move(blur)); 116fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } else if (SkToBool(makeBlur)) { 117fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setImageFilter(make_blur(3.0f, nullptr)); 118fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } else if (SkToBool(makeGray)) { 119fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setImageFilter(make_grayscale(nullptr)); 120fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 121fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (makeMode) { 122fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setColorFilter(make_color_filter()); 123fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 124fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (alpha) { 125fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setAlpha(0x80); 126fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 127fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.setTextSize(30); 128fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot shaderPaint.getFontMetrics(&metrics); 129fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += -metrics.fAscent; 130fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawString(text, 380, y, shaderPaint); 131fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += metrics.fDescent + metrics.fLeading; 132fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 133fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 134fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 135fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 136fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 137fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // setup work needed to draw text with different clips 138fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->translate(10, savedY); 139fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTextSize(40); 140fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 141fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // compute the bounds of the text 142fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRect bounds; 143fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.measureText(text, strlen(text), &bounds); 144fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 145fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf; 146fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHalf; 147fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkScalar boundsQuarterWidth = boundsHalfWidth * SK_ScalarHalf; 148fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkScalar boundsQuarterHeight = boundsHalfHeight * SK_ScalarHalf; 149fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 150fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRect upperLeftClip = SkRect::MakeXYWH(bounds.left(), bounds.top(), 151fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot boundsHalfWidth, boundsHalfHeight); 152fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRect lowerRightClip = SkRect::MakeXYWH(bounds.centerX(), bounds.centerY(), 153fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot boundsHalfWidth, boundsHalfHeight); 154fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRect interiorClip = bounds; 155fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot interiorClip.inset(boundsQuarterWidth, boundsQuarterHeight); 156fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 157fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkRect clipRects[] = { bounds, upperLeftClip, lowerRightClip, interiorClip }; 158fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 159fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint clipHairline; 160fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot clipHairline.setColor(SK_ColorWHITE); 161fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot clipHairline.setStyle(SkPaint::kStroke_Style); 162fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 163fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (const SkRect& clipRect : clipRects) { 164fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->translate(0, bounds.height()); 165fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->save(); 166fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawRect(clipRect, clipHairline); 167fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setAlpha(0x20); 168fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawString(text, 0, 0, paint); 169fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->clipRect(clipRect); 170fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setAlpha(0xFF); 171fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawString(text, 0, 0, paint); 172fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->restore(); 173fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->translate(0, SkIntToScalar(25)); 174fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 175fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 176fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 177fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot typedef GM INHERITED; 178fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 179fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 180fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot////////////////////////////////////////////////////////////////////////////// 181fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 182fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team RobotDEF_GM(return new ColorEmojiGM;) 183fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 184fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 185