skia2/gm/bigmatrix.cpp
reed fb8c1fcab1 Revert of IWYU: 'core' target, files starting A-C. (patchset #5 id:80001 of https://codereview.chromium.org/1265033002/ )
Reason for revert:
revert to unblock DEPS roll

../../chrome/browser/chromeos/display/overscan_calibrator.cc:43:10: error: variable has incomplete type 'SkPath'
  SkPath base_path;

Original issue's description:
> IWYU: 'core' target, files starting A-C.
>
> TBR=reed@google.com
> Verbal lgtm, does not change API.
>
> Committed: https://skia.googlesource.com/skia/+/7403d87db8e43d4c2b5b25ac22a0ebc22bd09d69

TBR=reed@google.com,mtklein@google.com,bungeman@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1273613002
2015-08-04 18:44:57 -07:00

96 lines
2.7 KiB
C++

/*
* Copyright 2012 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 "SkColorPriv.h"
#include "SkShader.h"
namespace skiagm {
class BigMatrixGM : public GM {
public:
BigMatrixGM() {
this->setBGColor(sk_tool_utils::color_to_565(0xFF66AA99));
}
protected:
virtual SkString onShortName() {
return SkString("bigmatrix");
}
virtual SkISize onISize() {
return SkISize::Make(50, 50);
}
virtual void onDraw(SkCanvas* canvas) {
SkMatrix m;
m.reset();
m.setRotate(33 * SK_Scalar1);
m.postScale(3000 * SK_Scalar1, 3000 * SK_Scalar1);
m.postTranslate(6000 * SK_Scalar1, -5000 * SK_Scalar1);
canvas->concat(m);
SkPaint paint;
paint.setColor(SK_ColorRED);
paint.setAntiAlias(true);
bool success = m.invert(&m);
SkASSERT(success);
(void) success; // silence compiler :(
SkPath path;
SkPoint pt = {10 * SK_Scalar1, 10 * SK_Scalar1};
SkScalar small = 1 / (500 * SK_Scalar1);
m.mapPoints(&pt, 1);
path.addCircle(pt.fX, pt.fY, small);
canvas->drawPath(path, paint);
pt.set(30 * SK_Scalar1, 10 * SK_Scalar1);
m.mapPoints(&pt, 1);
SkRect rect = {pt.fX - small, pt.fY - small,
pt.fX + small, pt.fY + small};
canvas->drawRect(rect, paint);
SkBitmap bmp;
bmp.allocN32Pixels(2, 2);
uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp.getPixels());
pixels[0] = SkPackARGB32(0xFF, 0xFF, 0x00, 0x00);
pixels[1] = SkPackARGB32(0xFF, 0x00, 0xFF, 0x00);
pixels[2] = SkPackARGB32(0x80, 0x00, 0x00, 0x00);
pixels[3] = SkPackARGB32(0xFF, 0x00, 0x00, 0xFF);
pt.set(30 * SK_Scalar1, 30 * SK_Scalar1);
m.mapPoints(&pt, 1);
SkMatrix s;
s.reset();
s.setScale(SK_Scalar1 / 1000, SK_Scalar1 / 1000);
SkShader* shader = SkShader::CreateBitmapShader(
bmp,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode,
&s);
paint.setShader(shader)->unref();
paint.setAntiAlias(false);
paint.setFilterQuality(kLow_SkFilterQuality);
rect.setLTRB(pt.fX - small, pt.fY - small,
pt.fX + small, pt.fY + small);
canvas->drawRect(rect, paint);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new BigMatrixGM; }
static GMRegistry reg(MyFactory);
}