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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkShader.h"
#include "SkBlurImageFilter.h"
#include "SkColorFilterImageFilter.h"
#include "SkMergeImageFilter.h"
#include "SkOffsetImageFilter.h"
#include "SkTestImageFilters.h"
///////////////////////////////////////////////////////////////////////////////
static void draw_paint(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
SkPaint paint;
paint.setImageFilter(imf);
paint.setColor(SK_ColorBLACK);
canvas->save();
canvas->clipRect(r);
canvas->drawPaint(paint);
canvas->restore();
}
static void draw_path(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
SkPaint paint;
paint.setColor(SK_ColorMAGENTA);
paint.setImageFilter(imf);
paint.setAntiAlias(true);
canvas->save();
canvas->clipRect(r);
canvas->drawCircle(r.centerX(), r.centerY(), r.width()*2/5, paint);
canvas->restore();
}
static void draw_text(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
SkPaint paint;
paint.setImageFilter(imf);
paint.setColor(SK_ColorGREEN);
paint.setAntiAlias(true);
paint.setTextSize(r.height()/2);
paint.setTextAlign(SkPaint::kCenter_Align);
canvas->save();
canvas->clipRect(r);
canvas->drawText("Text", 4, r.centerX(), r.centerY(), paint);
canvas->restore();
}
static void draw_bitmap(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
SkPaint paint;
SkIRect bounds;
r.roundOut(&bounds);
SkBitmap bm;
bm.allocN32Pixels(bounds.width(), bounds.height());
bm.eraseColor(SK_ColorTRANSPARENT);
SkCanvas c(bm);
draw_path(&c, r, NULL);
paint.setImageFilter(imf);
canvas->save();
canvas->clipRect(r);
canvas->drawBitmap(bm, 0, 0, &paint);
canvas->restore();
}
static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
SkPaint paint;
SkIRect bounds;
r.roundOut(&bounds);
SkBitmap bm;
bm.allocN32Pixels(bounds.width(), bounds.height());
bm.eraseColor(SK_ColorRED);
SkCanvas c(bm);
SkIRect cropRect = SkIRect::MakeXYWH(10, 10, 44, 44);
paint.setColor(SK_ColorGREEN);
c.drawRect(SkRect::Make(cropRect), paint);
paint.setImageFilter(imf);
SkPoint loc = { r.fLeft, r.fTop };
canvas->getTotalMatrix().mapPoints(&loc, 1);
canvas->drawSprite(bm,
SkScalarRoundToInt(loc.fX), SkScalarRoundToInt(loc.fY),
&paint);
}
///////////////////////////////////////////////////////////////////////////////
class ImageFiltersCroppedGM : public skiagm::GM {
public:
ImageFiltersCroppedGM () {}
protected:
virtual SkString onShortName() {
return SkString("imagefilterscropped");
}
virtual SkISize onISize() { return SkISize::Make(400, 640); }
void draw_frame(SkCanvas* canvas, const SkRect& r) {
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setColor(SK_ColorRED);
canvas->drawRect(r, paint);
}
virtual uint32_t onGetFlags() const {
// Because of the use of drawSprite, this test is excluded
// from scaled replay tests because drawSprite ignores the
// reciprocal scale that is applied at record time, which is
// the intended behavior of drawSprite.
return kSkipScaledReplay_Flag;
}
virtual void onDraw(SkCanvas* canvas) {
void (*drawProc[])(SkCanvas*, const SkRect&, SkImageFilter*) = {
draw_sprite, draw_bitmap, draw_path, draw_paint, draw_text
};
SkAutoTUnref<SkColorFilter> cf(
SkColorFilter::CreateModeFilter(SK_ColorBLUE, SkXfermode::kSrcIn_Mode));
SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), SkImageFilter::CropRect::kHasAll_CropEdge);
SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)), SkImageFilter::CropRect::kHasAll_CropEdge);
SkAutoTUnref<SkImageFilter> offset(new SkOffsetImageFilter(
SkIntToScalar(-10), SkIntToScalar(-10)));
SkAutoTUnref<SkImageFilter> cfOffset(SkColorFilterImageFilter::Create(cf.get(), offset.get()));
SkImageFilter* filters[] = {
NULL,
SkColorFilterImageFilter::Create(cf.get(), NULL, &cropRect),
new SkBlurImageFilter(1.0f, 1.0f, NULL, &cropRect),
new SkBlurImageFilter(8.0f, 0.0f, NULL, &cropRect),
new SkBlurImageFilter(0.0f, 8.0f, NULL, &cropRect),
new SkBlurImageFilter(8.0f, 8.0f, NULL, &cropRect),
new SkMergeImageFilter(NULL, cfOffset.get(), SkXfermode::kSrcOver_Mode, &cropRect),
new SkBlurImageFilter(8.0f, 8.0f, NULL, &bogusRect),
SkColorFilterImageFilter::Create(cf.get(), NULL, &bogusRect),
};
SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
SkScalar MARGIN = SkIntToScalar(16);
SkScalar DX = r.width() + MARGIN;
SkScalar DY = r.height() + MARGIN;
canvas->translate(MARGIN, MARGIN);
for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) {
canvas->save();
for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
drawProc[j](canvas, r, filters[i]);
canvas->translate(0, DY);
}
canvas->restore();
canvas->translate(DX, 0);
}
for(size_t j = 0; j < SK_ARRAY_COUNT(filters); ++j) {
SkSafeUnref(filters[j]);
}
}
private:
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static skiagm::GM* MyFactory(void*) { return new ImageFiltersCroppedGM; }
static skiagm::GMRegistry reg(MyFactory);
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