b579f07110
Bug: skia: Change-Id: I8ba252e3fc5c0970fd9d83f73c32b68f3c68452e Reviewed-on: https://skia-review.googlesource.com/c/180771 Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Mike Reed <reed@google.com> Auto-Submit: Mike Reed <reed@google.com>
111 lines
3.5 KiB
C++
111 lines
3.5 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 "DecodeFile.h"
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#include "Sample.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 "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkString.h"
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#include "SkTextUtils.h"
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#include "SkTime.h"
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#include "SkUTF.h"
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static const char* gNames[] = {
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"/skimages/background_01.png"
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};
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class Filter2View : public Sample {
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public:
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SkBitmap* fBitmaps;
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int fBitmapCount;
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int fCurrIndex;
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Filter2View() {
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fBitmapCount = SK_ARRAY_COUNT(gNames)*2;
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fBitmaps = new SkBitmap[fBitmapCount];
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for (int i = 0; i < fBitmapCount/2; i++) {
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decode_file(gNames[i], &fBitmaps[i]);
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}
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for (int i = fBitmapCount/2; i < fBitmapCount; i++) {
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decode_file(gNames[i-fBitmapCount/2], &fBitmaps[i], kRGB_565_SkColorType);
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}
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fCurrIndex = 0;
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this->setBGColor(SK_ColorGRAY);
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}
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virtual ~Filter2View() {
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delete[] fBitmaps;
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}
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protected:
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virtual bool onQuery(Sample::Event* evt) {
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if (Sample::TitleQ(*evt)) {
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SkString str("Filter/Dither ");
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str.append(gNames[fCurrIndex]);
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Sample::TitleR(evt, str.c_str());
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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canvas->translate(SkIntToScalar(10), SkIntToScalar(50));
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const SkScalar W = SkIntToScalar(fBitmaps[0].width() + 1);
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const SkScalar H = SkIntToScalar(fBitmaps[0].height() + 1);
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SkPaint paint;
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const SkScalar scale = 0.897917f;
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canvas->scale(SK_Scalar1, scale);
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for (int k = 0; k < 2; k++) {
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paint.setFilterQuality(k == 1 ? kLow_SkFilterQuality : kNone_SkFilterQuality);
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for (int j = 0; j < 2; j++) {
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paint.setDither(j == 1);
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for (int i = 0; i < fBitmapCount; i++) {
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SkScalar x = (k * fBitmapCount + j) * W;
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SkScalar y = i * H;
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x = SkScalarRoundToScalar(x);
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y = SkScalarRoundToScalar(y);
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canvas->drawBitmap(fBitmaps[i], x, y, &paint);
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SkFont font;
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font.setSize(SkIntToScalar(18));
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if (i == 0) {
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SkString s("dither=");
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s.appendS32(paint.isDither());
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s.append(" filter=");
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s.appendS32(paint.getFilterQuality() != kNone_SkFilterQuality);
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SkTextUtils::DrawString(canvas, s.c_str(), x + W/2, y - font.getSize(), font, SkPaint(),
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SkTextUtils::kCenter_Align);
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}
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if (k+j == 2) {
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SkString s;
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s.append(" depth=");
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s.appendS32(fBitmaps[i].colorType() == kRGB_565_SkColorType ? 16 : 32);
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SkTextUtils::DrawString(canvas, s.c_str(), x + W + SkIntToScalar(4), y + H/2, font, SkPaint());
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}
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}
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}
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}
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}
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private:
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new Filter2View(); )
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