e964c18b98
Change-Id: I705180db106ec4515aaec5f347199b98b21976fa Reviewed-on: https://skia-review.googlesource.com/c/186081 Auto-Submit: Hal Canary <halcanary@google.com> Reviewed-by: Herb Derby <herb@google.com> Commit-Queue: Hal Canary <halcanary@google.com>
146 lines
4.1 KiB
C++
146 lines
4.1 KiB
C++
/*
|
|
* Copyright 2013 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 "SkBitmap.h"
|
|
#include "SkShader.h"
|
|
#include "SkBlendModePriv.h"
|
|
#include "SkColorPriv.h"
|
|
#include "SkTextUtils.h"
|
|
|
|
namespace skiagm {
|
|
|
|
class Xfermodes2GM : public GM {
|
|
public:
|
|
Xfermodes2GM() {}
|
|
|
|
protected:
|
|
SkString onShortName() override {
|
|
return SkString("xfermodes2");
|
|
}
|
|
|
|
SkISize onISize() override {
|
|
return SkISize::Make(455, 475);
|
|
}
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
|
|
|
|
const SkScalar w = SkIntToScalar(kSize);
|
|
const SkScalar h = SkIntToScalar(kSize);
|
|
|
|
SkFont font(sk_tool_utils::create_portable_typeface());
|
|
|
|
const int W = 6;
|
|
|
|
SkScalar x = 0, y = 0;
|
|
for (size_t m = 0; m <= (size_t)SkBlendMode::kLastMode; m++) {
|
|
SkBlendMode mode = static_cast<SkBlendMode>(m);
|
|
|
|
canvas->save();
|
|
|
|
canvas->translate(x, y);
|
|
SkPaint p;
|
|
p.setAntiAlias(false);
|
|
p.setStyle(SkPaint::kFill_Style);
|
|
p.setShader(fBG);
|
|
SkRect r = SkRect::MakeWH(w, h);
|
|
canvas->drawRect(r, p);
|
|
|
|
canvas->saveLayer(&r, nullptr);
|
|
|
|
p.setShader(fDst);
|
|
canvas->drawRect(r, p);
|
|
p.setShader(fSrc);
|
|
p.setBlendMode(mode);
|
|
canvas->drawRect(r, p);
|
|
|
|
canvas->restore();
|
|
|
|
r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
|
|
p.setStyle(SkPaint::kStroke_Style);
|
|
p.setShader(nullptr);
|
|
p.setBlendMode(SkBlendMode::kSrcOver);
|
|
canvas->drawRect(r, p);
|
|
|
|
canvas->restore();
|
|
|
|
#if 1
|
|
SkTextUtils::DrawString(canvas, SkBlendMode_Name(mode), x + w/2, y - font.getSize()/2, font, SkPaint(),
|
|
SkTextUtils::kCenter_Align);
|
|
#endif
|
|
x += w + SkIntToScalar(10);
|
|
if ((m % W) == W - 1) {
|
|
x = 0;
|
|
y += h + SkIntToScalar(30);
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
void onOnceBeforeDraw() override {
|
|
const uint32_t kCheckData[] = {
|
|
SkPackARGB32(0xFF, 0x42, 0x41, 0x42),
|
|
SkPackARGB32(0xFF, 0xD6, 0xD3, 0xD6),
|
|
SkPackARGB32(0xFF, 0xD6, 0xD3, 0xD6),
|
|
SkPackARGB32(0xFF, 0x42, 0x41, 0x42)
|
|
};
|
|
SkBitmap bg;
|
|
bg.allocN32Pixels(2, 2, true);
|
|
memcpy(bg.getPixels(), kCheckData, sizeof(kCheckData));
|
|
|
|
SkMatrix lm;
|
|
lm.setScale(SkIntToScalar(16), SkIntToScalar(16));
|
|
fBG = SkShader::MakeBitmapShader(bg, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode,
|
|
&lm);
|
|
|
|
SkBitmap srcBmp;
|
|
srcBmp.allocN32Pixels(kSize, kSize);
|
|
SkPMColor* pixels = reinterpret_cast<SkPMColor*>(srcBmp.getPixels());
|
|
|
|
for (int y = 0; y < kSize; ++y) {
|
|
int c = y * (1 << kShift);
|
|
SkPMColor rowColor = SkPackARGB32(c, c, 0, c/2);
|
|
for (int x = 0; x < kSize; ++x) {
|
|
pixels[kSize * y + x] = rowColor;
|
|
}
|
|
}
|
|
fSrc = SkShader::MakeBitmapShader(srcBmp, SkShader::kClamp_TileMode,
|
|
SkShader::kClamp_TileMode);
|
|
SkBitmap dstBmp;
|
|
dstBmp.allocN32Pixels(kSize, kSize);
|
|
pixels = reinterpret_cast<SkPMColor*>(dstBmp.getPixels());
|
|
|
|
for (int x = 0; x < kSize; ++x) {
|
|
int c = x * (1 << kShift);
|
|
SkPMColor colColor = SkPackARGB32(c, 0, c, c/2);
|
|
for (int y = 0; y < kSize; ++y) {
|
|
pixels[kSize * y + x] = colColor;
|
|
}
|
|
}
|
|
fDst = SkShader::MakeBitmapShader(dstBmp, SkShader::kClamp_TileMode,
|
|
SkShader::kClamp_TileMode);
|
|
}
|
|
|
|
enum {
|
|
kShift = 2,
|
|
kSize = 256 >> kShift,
|
|
};
|
|
|
|
sk_sp<SkShader> fBG;
|
|
sk_sp<SkShader> fSrc;
|
|
sk_sp<SkShader> fDst;
|
|
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM( return new Xfermodes2GM; )
|
|
|
|
}
|