/*
* 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 "Resources.h"
#include "SkCodec.h"
#include "SkColorSpace.h"
#include "SkColorSpacePriv.h"
#include "SkHalf.h"
#include "SkImage.h"
#include "SkImageInfoPriv.h"
#include "SkPictureRecorder.h"
static const int kWidth = 64;
static const int kHeight = 64;
static sk_sp<SkImage> make_raster_image(SkColorType colorType) {
std::unique_ptr<SkStream> stream(GetResourceAsStream("images/google_chrome.ico"));
std::unique_ptr<SkCodec> codec = SkCodec::MakeFromStream(std::move(stream));
if (!codec) {
return nullptr;
}
SkBitmap bitmap;
SkImageInfo info = codec->getInfo().makeWH(kWidth, kHeight)
.makeColorType(colorType)
.makeAlphaType(kPremul_SkAlphaType);
bitmap.allocPixels(info);
codec->getPixels(info, bitmap.getPixels(), bitmap.rowBytes());
bitmap.setImmutable();
return SkImage::MakeFromBitmap(bitmap);
}
static sk_sp<SkImage> make_codec_image() {
sk_sp<SkData> encoded = GetResourceAsData("images/randPixels.png");
return SkImage::MakeFromEncoded(encoded);
}
static void draw_contents(SkCanvas* canvas) {
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(20);
paint.setColor(0xFF800000);
canvas->drawCircle(40, 40, 35, paint);
paint.setColor(0xFF008000);
canvas->drawCircle(50, 50, 35, paint);
paint.setColor(0xFF000080);
canvas->drawCircle(60, 60, 35, paint);
}
static sk_sp<SkImage> make_picture_image() {
SkPictureRecorder recorder;
draw_contents(recorder.beginRecording(SkRect::MakeIWH(kWidth, kHeight)));
return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
SkISize::Make(kWidth, kHeight), nullptr, nullptr,
SkImage::BitDepth::kU8,
SkColorSpace::MakeSRGB());
}
static sk_sp<SkColorSpace> make_parametric_transfer_fn(const SkColorSpacePrimaries& primaries) {
skcms_Matrix3x3 toXYZD50;
SkAssertResult(primaries.toXYZD50(&toXYZD50));
skcms_TransferFunction fn = { 1.8f, 1.f, 0.f, 0.f, 0.f, 0.f, 0.f };
return SkColorSpace::MakeRGB(fn, toXYZD50);
}
static sk_sp<SkColorSpace> make_wide_gamut() {
// ProPhoto
SkColorSpacePrimaries primaries;
primaries.fRX = 0.7347f;
primaries.fRY = 0.2653f;
primaries.fGX = 0.1596f;
primaries.fGY = 0.8404f;
primaries.fBX = 0.0366f;
primaries.fBY = 0.0001f;
primaries.fWX = 0.34567f;
primaries.fWY = 0.35850f;
return make_parametric_transfer_fn(primaries);
}
static sk_sp<SkColorSpace> make_small_gamut() {
SkColorSpacePrimaries primaries;
primaries.fRX = 0.50f;
primaries.fRY = 0.33f;
primaries.fGX = 0.30f;
primaries.fGY = 0.50f;
primaries.fBX = 0.25f;
primaries.fBY = 0.16f;
primaries.fWX = 0.3127f;
primaries.fWY = 0.3290f;
return make_parametric_transfer_fn(primaries);
}
static void draw_image(SkCanvas* canvas, SkImage* image, SkColorType dstColorType,
SkAlphaType dstAlphaType, sk_sp<SkColorSpace> dstColorSpace,
SkImage::CachingHint hint) {
size_t rowBytes = image->width() * SkColorTypeBytesPerPixel(dstColorType);
sk_sp<SkData> data = SkData::MakeUninitialized(rowBytes * image->height());
SkImageInfo dstInfo = SkImageInfo::Make(image->width(), image->height(), dstColorType,
dstAlphaType, dstColorSpace);
if (!image->readPixels(dstInfo, data->writable_data(), rowBytes, 0, 0, hint)) {
memset(data->writable_data(), 0, rowBytes * image->height());
}
// Now that we have called readPixels(), dump the raw pixels into an srgb image.
sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
sk_sp<SkImage> raw = SkImage::MakeRasterData(dstInfo.makeColorSpace(srgb), data, rowBytes);
canvas->drawImage(raw.get(), 0.0f, 0.0f, nullptr);
}
class ReadPixelsGM : public skiagm::GM {
public:
ReadPixelsGM() {}
protected:
SkString onShortName() override {
return SkString("readpixels");
}
SkISize onISize() override {
return SkISize::Make(6 * kWidth, 9 * kHeight);
}
void onDraw(SkCanvas* canvas) override {
const SkAlphaType alphaTypes[] = {
kUnpremul_SkAlphaType,
kPremul_SkAlphaType,
};
const SkColorType colorTypes[] = {
kRGBA_8888_SkColorType,
kBGRA_8888_SkColorType,
kRGBA_F16_SkColorType,
};
const sk_sp<SkColorSpace> colorSpaces[] = {
make_wide_gamut(),
SkColorSpace::MakeSRGB(),
make_small_gamut(),
};
for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) {
for (SkColorType srcColorType : colorTypes) {
canvas->save();
sk_sp<SkImage> image = make_raster_image(srcColorType);
if (!image) {
continue;
}
if (GrContext* context = canvas->getGrContext()) {
image = image->makeTextureImage(context, canvas->imageInfo().colorSpace());
}
if (image) {
for (SkColorType dstColorType : colorTypes) {
for (SkAlphaType dstAlphaType : alphaTypes) {
draw_image(canvas, image.get(), dstColorType, dstAlphaType,
dstColorSpace, SkImage::kAllow_CachingHint);
canvas->translate((float)kWidth, 0.0f);
}
}
}
canvas->restore();
canvas->translate(0.0f, (float) kHeight);
}
}
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new ReadPixelsGM; )
class ReadPixelsCodecGM : public skiagm::GM {
public:
ReadPixelsCodecGM() {}
protected:
SkString onShortName() override {
return SkString("readpixelscodec");
}
SkISize onISize() override {
return SkISize::Make(3 * (kEncodedWidth + 1), 12 * (kEncodedHeight + 1));
}
void onDraw(SkCanvas* canvas) override {
if (!canvas->imageInfo().colorSpace()) {
// This gm is only interesting in color correct modes.
return;
}
const SkAlphaType alphaTypes[] = {
kUnpremul_SkAlphaType,
kPremul_SkAlphaType,
};
const SkColorType colorTypes[] = {
kRGBA_8888_SkColorType,
kBGRA_8888_SkColorType,
kRGBA_F16_SkColorType,
};
const sk_sp<SkColorSpace> colorSpaces[] = {
make_wide_gamut(),
SkColorSpace::MakeSRGB(),
make_small_gamut(),
};
const SkImage::CachingHint hints[] = {
SkImage::kAllow_CachingHint,
SkImage::kDisallow_CachingHint,
};
sk_sp<SkImage> image = make_codec_image();
for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) {
canvas->save();
for (SkColorType dstColorType : colorTypes) {
for (SkAlphaType dstAlphaType : alphaTypes) {
for (SkImage::CachingHint hint : hints) {
draw_image(canvas, image.get(), dstColorType, dstAlphaType, dstColorSpace,
hint);
canvas->translate(0.0f, (float) kEncodedHeight + 1);
}
}
}
canvas->restore();
canvas->translate((float) kEncodedWidth + 1, 0.0f);
}
}
private:
static const int kEncodedWidth = 8;
static const int kEncodedHeight = 8;
typedef skiagm::GM INHERITED;
};
DEF_GM( return new ReadPixelsCodecGM; )
class ReadPixelsPictureGM : public skiagm::GM {
public:
ReadPixelsPictureGM() {}
protected:
SkString onShortName() override {
return SkString("readpixelspicture");
}
SkISize onISize() override {
return SkISize::Make(3 * kWidth, 12 * kHeight);
}
void onDraw(SkCanvas* canvas) override {
if (!canvas->imageInfo().colorSpace()) {
// This gm is only interesting in color correct modes.
return;
}
const sk_sp<SkImage> images[] = {
make_picture_image(),
};
const SkAlphaType alphaTypes[] = {
kUnpremul_SkAlphaType,
kPremul_SkAlphaType,
};
const SkColorType colorTypes[] = {
kRGBA_8888_SkColorType,
kBGRA_8888_SkColorType,
kRGBA_F16_SkColorType,
};
const sk_sp<SkColorSpace> colorSpaces[] = {
make_wide_gamut(),
SkColorSpace::MakeSRGB(),
make_small_gamut(),
};
const SkImage::CachingHint hints[] = {
SkImage::kAllow_CachingHint,
SkImage::kDisallow_CachingHint,
};
for (sk_sp<SkImage> image : images) {
for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) {
canvas->save();
for (SkColorType dstColorType : colorTypes) {
for (SkAlphaType dstAlphaType : alphaTypes) {
for (SkImage::CachingHint hint : hints) {
draw_image(canvas, image.get(), dstColorType, dstAlphaType,
dstColorSpace, hint);
canvas->translate(0.0f, (float) kHeight);
}
}
}
canvas->restore();
canvas->translate((float) kWidth, 0.0f);
}
}
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new ReadPixelsPictureGM; )