96f16e835e
BUG=skia:1902 Review URL: https://codereview.chromium.org/1518893002
201 lines
6.9 KiB
C++
201 lines
6.9 KiB
C++
/*
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* Copyright 2011 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.h"
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#include "SkCanvas.h"
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#include "SkColorFilter.h"
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#include "SkColorPriv.h"
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#include "SkShader.h"
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#include "SkBlurImageFilter.h"
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#include "SkMorphologyImageFilter.h"
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#include "SkColorFilterImageFilter.h"
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#include "SkMergeImageFilter.h"
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#include "SkOffsetImageFilter.h"
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#include "SkTestImageFilters.h"
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///////////////////////////////////////////////////////////////////////////////
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static void draw_paint(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
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SkPaint paint;
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paint.setImageFilter(imf);
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paint.setColor(SK_ColorBLACK);
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canvas->save();
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canvas->clipRect(r);
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canvas->drawPaint(paint);
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canvas->restore();
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}
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static void draw_path(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
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SkPaint paint;
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paint.setColor(SK_ColorMAGENTA);
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paint.setImageFilter(imf);
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paint.setAntiAlias(true);
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canvas->drawCircle(r.centerX(), r.centerY(), r.width()*2/5, paint);
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}
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static void draw_text(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
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SkPaint paint;
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paint.setImageFilter(imf);
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paint.setColor(SK_ColorGREEN);
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paint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&paint);
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paint.setTextSize(r.height()/2);
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paint.setTextAlign(SkPaint::kCenter_Align);
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canvas->drawText("Text", 4, r.centerX(), r.centerY(), paint);
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}
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static void draw_bitmap(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
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SkPaint paint;
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SkIRect bounds;
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r.roundOut(&bounds);
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SkBitmap bm;
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bm.allocN32Pixels(bounds.width(), bounds.height());
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bm.eraseColor(SK_ColorTRANSPARENT);
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SkCanvas c(bm);
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draw_path(&c, r, nullptr);
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paint.setImageFilter(imf);
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canvas->drawBitmap(bm, 0, 0, &paint);
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}
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static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
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SkPaint paint;
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SkIRect bounds;
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r.roundOut(&bounds);
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SkBitmap bm;
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bm.allocN32Pixels(bounds.width(), bounds.height());
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bm.eraseColor(SK_ColorRED);
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SkCanvas c(bm);
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SkIRect cropRect = SkIRect::MakeXYWH(10, 10, 44, 44);
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paint.setColor(SK_ColorGREEN);
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c.drawRect(SkRect::Make(cropRect), paint);
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paint.setImageFilter(imf);
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SkPoint loc = { r.fLeft, r.fTop };
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canvas->getTotalMatrix().mapPoints(&loc, 1);
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canvas->drawSprite(bm,
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SkScalarRoundToInt(loc.fX), SkScalarRoundToInt(loc.fY),
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&paint);
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}
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///////////////////////////////////////////////////////////////////////////////
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class ImageFiltersCroppedGM : public skiagm::GM {
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public:
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ImageFiltersCroppedGM () {}
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protected:
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virtual SkString onShortName() override {
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return SkString("imagefilterscropped");
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}
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virtual SkISize onISize() override { return SkISize::Make(400, 880); }
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void make_checkerboard() {
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fCheckerboard.allocN32Pixels(80, 80);
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SkCanvas canvas(fCheckerboard);
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canvas.clear(SK_ColorTRANSPARENT);
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SkPaint darkPaint;
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darkPaint.setColor(sk_tool_utils::color_to_565(0xFF404040));
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SkPaint lightPaint;
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lightPaint.setColor(sk_tool_utils::color_to_565(0xFFA0A0A0));
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for (int y = 0; y < 80; y += 16) {
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for (int x = 0; x < 80; x += 16) {
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canvas.save();
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canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
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canvas.restore();
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}
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}
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}
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void draw_frame(SkCanvas* canvas, const SkRect& r) {
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setColor(SK_ColorRED);
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canvas->drawRect(r, paint);
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}
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virtual void onOnceBeforeDraw() override{
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make_checkerboard();
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}
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virtual void onDraw(SkCanvas* canvas) override {
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void (*drawProc[])(SkCanvas*, const SkRect&, SkImageFilter*) = {
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draw_sprite, draw_bitmap, draw_path, draw_paint, draw_text
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};
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SkAutoTUnref<SkColorFilter> cf(
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SkColorFilter::CreateModeFilter(SK_ColorBLUE, SkXfermode::kSrcIn_Mode));
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SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), SkImageFilter::CropRect::kHasAll_CropEdge);
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SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)), SkImageFilter::CropRect::kHasAll_CropEdge);
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SkAutoTUnref<SkImageFilter> offset(SkOffsetImageFilter::Create(
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SkIntToScalar(-10), SkIntToScalar(-10)));
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SkAutoTUnref<SkImageFilter> cfOffset(SkColorFilterImageFilter::Create(cf.get(), offset.get()));
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SkAutoTUnref<SkImageFilter> erodeX(SkErodeImageFilter::Create(8, 0, nullptr, &cropRect));
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SkAutoTUnref<SkImageFilter> erodeY(SkErodeImageFilter::Create(0, 8, nullptr, &cropRect));
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SkImageFilter* filters[] = {
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nullptr,
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SkColorFilterImageFilter::Create(cf.get(), nullptr, &cropRect),
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SkBlurImageFilter::Create(1.0f, 1.0f, nullptr, &cropRect),
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SkBlurImageFilter::Create(8.0f, 0.0f, nullptr, &cropRect),
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SkBlurImageFilter::Create(0.0f, 8.0f, nullptr, &cropRect),
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SkBlurImageFilter::Create(8.0f, 8.0f, nullptr, &cropRect),
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SkErodeImageFilter::Create(1, 1, nullptr, &cropRect),
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SkErodeImageFilter::Create(8, 0, erodeY, &cropRect),
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SkErodeImageFilter::Create(0, 8, erodeX, &cropRect),
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SkErodeImageFilter::Create(8, 8, nullptr, &cropRect),
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SkMergeImageFilter::Create(nullptr, cfOffset.get(), SkXfermode::kSrcOver_Mode, &cropRect),
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SkBlurImageFilter::Create(8.0f, 8.0f, nullptr, &bogusRect),
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SkColorFilterImageFilter::Create(cf.get(), nullptr, &bogusRect),
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};
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SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
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SkScalar MARGIN = SkIntToScalar(16);
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SkScalar DX = r.width() + MARGIN;
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SkScalar DY = r.height() + MARGIN;
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canvas->translate(MARGIN, MARGIN);
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for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) {
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canvas->save();
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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SkPaint paint;
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canvas->drawBitmap(fCheckerboard, 0, 0);
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drawProc[j](canvas, r, filters[i]);
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canvas->translate(0, DY);
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}
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canvas->restore();
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canvas->translate(DX, 0);
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}
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for(size_t j = 0; j < SK_ARRAY_COUNT(filters); ++j) {
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SkSafeUnref(filters[j]);
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}
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}
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private:
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SkBitmap fCheckerboard;
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typedef GM INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new ImageFiltersCroppedGM; )
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