blob: 8b28070fe85a878bd3997d174f6b4039e6ae6222 [file] [log] [blame]
/*
* 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 "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkShader.h"
#include "include/core/SkString.h"
#include "include/private/base/SkTArray.h"
#include "include/utils/SkCamera.h"
#include "src/effects/SkEmbossMaskFilter.h"
#include "tools/DecodeUtils.h"
#include "tools/Resources.h"
#include "tools/timer/TimeUtils.h"
#include "tools/viewer/Slide.h"
using namespace skia_private;
namespace {
class CameraSlide : public Slide {
TArray<sk_sp<SkShader>> fShaders;
int fShaderIndex = 0;
bool fFrontFace = false;
SkScalar fRX = 0;
SkScalar fRY = 0;
SkSize fSize;
public:
CameraSlide() { fName = "Camera"; }
void load(SkScalar w, SkScalar h) override {
fSize = {w, h};
for (const char* resource : {
"images/mandrill_512_q075.jpg",
"images/dog.jpg",
"images/gamut.png",
}) {
SkBitmap bm;
if (ToolUtils::GetResourceAsBitmap(resource, &bm)) {
SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) };
SkRect dst = { -150, -150, 150, 150 };
fShaders.push_back(bm.makeShader(SkSamplingOptions(SkFilterMode::kLinear),
SkMatrix::RectToRect(src, dst)));
}
}
}
void draw(SkCanvas* canvas) override {
canvas->clear(0xFFDDDDDD);
if (fShaders.size() > 0) {
canvas->translate(fSize.width()/2, fSize.height()/2);
Sk3DView view;
view.rotateX(fRX);
view.rotateY(fRY);
view.applyToCanvas(canvas);
bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0;
if (frontFace != fFrontFace) {
fFrontFace = frontFace;
fShaderIndex = (fShaderIndex + 1) % fShaders.size();
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setShader(fShaders[fShaderIndex]);
SkRect r = { -150, -150, 150, 150 };
canvas->drawRoundRect(r, 30, 30, paint);
}
}
void resize(SkScalar w, SkScalar h) override { fSize = {w, h}; }
bool animate(double nanos) override {
fRY = nanos ? TimeUtils::Scaled(1e-9 * nanos, 90, 360) : 0;
return true;
}
};
} // namespace
DEF_SLIDE( return new CameraSlide(); )