skia2/gm/imagemakewithfilter.cpp
Cary Clark a24712e4dc Revert "makeSurface defaults to raster"
This reverts commit 29a4a684af.

Reason for revert: some configs fail

Original change's description:
> makeSurface defaults to raster
> 
> Rather that returning nullptr for a recording
> canvas, return a raster canvas instead.
> 
> R=​reed@google.com,robertphillips@google.com
> 
> Bug: skia:
> Change-Id: I211d8ef368b9aec6d14cc72d1652ac6a03f3fa7b
> Reviewed-on: https://skia-review.googlesource.com/151666
> Commit-Queue: Cary Clark <caryclark@skia.org>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,reed@google.com,caryclark@skia.org

Change-Id: I82d2c3e4589a2ca8523bbf86884ed68b1431631d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/151824
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
2018-09-05 18:41:45 +00:00

102 lines
3.6 KiB
C++

/*
* Copyright 2016 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 "sk_tool_utils.h"
#include "SkBlurImageFilter.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkColorFilterImageFilter.h"
#include "SkDropShadowImageFilter.h"
#include "SkSurface.h"
///////////////////////////////////////////////////////////////////////////////
static void show_bounds(SkCanvas* canvas, const SkIRect& subset, const SkIRect& clip) {
SkIRect rects[] { subset, clip };
SkColor colors[] { SK_ColorRED, SK_ColorBLUE };
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
for (size_t i = 0; i < SK_ARRAY_COUNT(rects); ++i) {
paint.setColor(colors[i]);
canvas->drawRect(SkRect::Make(rects[i]), paint);
}
}
// In this GM, we're going to feed the inner portion of a 100x100 checkboard
// (i.e., strip off a 25-wide border) through the makeWithFilter method.
// We'll then draw the appropriate subset of the result to the screen at the
// given offset.
class ImageMakeWithFilterGM : public skiagm::GM {
public:
ImageMakeWithFilterGM () {}
protected:
SkString onShortName() override {
return SkString("imagemakewithfilter");
}
SkISize onISize() override { return SkISize::Make(440, 530); }
void onDraw(SkCanvas* canvas) override {
auto cf = SkColorFilter::MakeModeFilter(SK_ColorGREEN, SkBlendMode::kSrc);
sk_sp<SkImageFilter> filters[] = {
SkColorFilterImageFilter::Make(std::move(cf), nullptr),
SkBlurImageFilter::Make(2.0f, 2.0f, nullptr),
SkDropShadowImageFilter::Make(
10.0f, 5.0f, 3.0f, 3.0f, SK_ColorBLUE,
SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode,
nullptr),
};
SkIRect clipBounds[] {
{ -20, -20, 100, 100 },
{ 0, 0, 75, 75 },
{ 20, 20, 100, 100 },
{ -20, -20, 50, 50 },
{ 20, 20, 50, 50 },
};
SkImageInfo info = SkImageInfo::MakeN32(100, 100, kPremul_SkAlphaType);
SkScalar MARGIN = SkIntToScalar(40);
SkScalar DX = info.width() + MARGIN;
SkScalar DY = info.height() + MARGIN;
canvas->translate(MARGIN, MARGIN);
sk_sp<SkSurface> surface = sk_tool_utils::makeSurface(canvas, info);
sk_tool_utils::draw_checkerboard(surface->getCanvas());
sk_sp<SkImage> source = surface->makeImageSnapshot();
for (auto clipBound : clipBounds) {
canvas->save();
for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
SkIRect subset = SkIRect::MakeXYWH(25, 25, 50, 50);
SkIRect outSubset;
SkIPoint offset;
sk_sp<SkImage> result = source->makeWithFilter(filters[i].get(), subset, clipBound,
&outSubset, &offset);
SkASSERT(result);
SkASSERT(source->isTextureBacked() == result->isTextureBacked());
result = result->makeSubset(outSubset);
canvas->drawImage(result.get(), SkIntToScalar(offset.fX), SkIntToScalar(offset.fY));
show_bounds(canvas, SkIRect::MakeXYWH(offset.x(), offset.y(), outSubset.width(),
outSubset.height()), clipBound);
canvas->translate(DX, 0);
}
canvas->restore();
canvas->translate(0, DY);
}
}
private:
typedef GM INHERITED;
};
DEF_GM( return new ImageMakeWithFilterGM; )