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skia2/gm/image.cpp
Ben Wagner 7fde8e1728 IWYU for gms. 
This almost gets gms to be iwyu clean. The last bit is around gm.cpp
and the tracing framework and its use of atomic. Will also need a way
of keeping things from regressing, which is difficult due to needing to
do this outside-in.

Change-Id: I1393531e99da8b0f1a29f55c53c86d53f459af7d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211593
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-05-02 17:48:53 +00:00

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/*
* 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 "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorPriv.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkData.h"
#include "include/core/SkEncodedImageFormat.h"
#include "include/core/SkFilterQuality.h"
#include "include/core/SkFont.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageEncoder.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/private/SkMalloc.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkWriteBuffer.h"
#include "tools/ToolUtils.h"
#include <functional>
#include <utility>
class GrContext;
class GrRenderTargetContext;
static void drawContents(SkSurface* surface, SkColor fillC) {
SkSize size = SkSize::Make(SkIntToScalar(surface->width()),
SkIntToScalar(surface->height()));
SkCanvas* canvas = surface->getCanvas();
SkScalar stroke = size.fWidth / 10;
SkScalar radius = (size.fWidth - stroke) / 2;
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(fillC);
canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(stroke);
paint.setColor(SK_ColorBLACK);
canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint);
}
static void test_surface(SkCanvas* canvas, SkSurface* surf, bool usePaint) {
drawContents(surf, SK_ColorRED);
sk_sp<SkImage> imgR = surf->makeImageSnapshot();
if (true) {
sk_sp<SkImage> imgR2 = surf->makeImageSnapshot();
SkASSERT(imgR == imgR2);
}
drawContents(surf, SK_ColorGREEN);
sk_sp<SkImage> imgG = surf->makeImageSnapshot();
// since we've drawn after we snapped imgR, imgG will be a different obj
SkASSERT(imgR != imgG);
drawContents(surf, SK_ColorBLUE);
SkPaint paint;
// paint.setFilterBitmap(true);
// paint.setAlpha(0x80);
canvas->drawImage(imgR, 0, 0, usePaint ? &paint : nullptr);
canvas->drawImage(imgG, 0, 80, usePaint ? &paint : nullptr);
surf->draw(canvas, 0, 160, usePaint ? &paint : nullptr);
SkRect src1, src2, src3;
src1.iset(0, 0, surf->width(), surf->height());
src2.iset(-surf->width() / 2, -surf->height() / 2,
surf->width(), surf->height());
src3.iset(0, 0, surf->width() / 2, surf->height() / 2);
SkRect dst1, dst2, dst3, dst4;
dst1.set(0, 240, 65, 305);
dst2.set(0, 320, 65, 385);
dst3.set(0, 400, 65, 465);
dst4.set(0, 480, 65, 545);
canvas->drawImageRect(imgR, src1, dst1, usePaint ? &paint : nullptr);
canvas->drawImageRect(imgG, src2, dst2, usePaint ? &paint : nullptr);
canvas->drawImageRect(imgR, src3, dst3, usePaint ? &paint : nullptr);
canvas->drawImageRect(imgG, dst4, usePaint ? &paint : nullptr);
}
class ImageGM : public skiagm::GM {
void* fBuffer;
size_t fBufferSize;
SkSize fSize;
enum {
W = 64,
H = 64,
RB = W * 4 + 8,
};
public:
ImageGM() {
fBufferSize = RB * H;
fBuffer = sk_malloc_throw(fBufferSize);
fSize.set(SkIntToScalar(W), SkIntToScalar(H));
}
~ImageGM() override {
sk_free(fBuffer);
}
protected:
SkString onShortName() override {
return SkString("image-surface");
}
SkISize onISize() override {
return SkISize::Make(960, 1200);
}
void onDraw(SkCanvas* canvas) override {
canvas->scale(2, 2);
SkFont font(ToolUtils::create_portable_typeface(), 8);
canvas->drawString("Original Img", 10, 60, font, SkPaint());
canvas->drawString("Modified Img", 10, 140, font, SkPaint());
canvas->drawString("Cur Surface", 10, 220, font, SkPaint());
canvas->drawString("Full Crop", 10, 300, font, SkPaint());
canvas->drawString("Over-crop", 10, 380, font, SkPaint());
canvas->drawString("Upper-left", 10, 460, font, SkPaint());
canvas->drawString("No Crop", 10, 540, font, SkPaint());
canvas->drawString("Pre-Alloc Img", 80, 10, font, SkPaint());
canvas->drawString("New Alloc Img", 160, 10, font, SkPaint());
canvas->drawString( "GPU", 265, 10, font, SkPaint());
canvas->translate(80, 20);
// since we draw into this directly, we need to start fresh
sk_bzero(fBuffer, fBufferSize);
SkImageInfo info = SkImageInfo::MakeN32Premul(W, H);
sk_sp<SkSurface> surf0(SkSurface::MakeRasterDirect(info, fBuffer, RB));
sk_sp<SkSurface> surf1(SkSurface::MakeRaster(info));
sk_sp<SkSurface> surf2(SkSurface::MakeRenderTarget(canvas->getGrContext(),
SkBudgeted::kNo, info));
test_surface(canvas, surf0.get(), true);
canvas->translate(80, 0);
test_surface(canvas, surf1.get(), true);
if (surf2) {
canvas->translate(80, 0);
test_surface(canvas, surf2.get(), true);
}
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new ImageGM; )
///////////////////////////////////////////////////////////////////////////////////////////////////
static void draw_pixmap(SkCanvas* canvas, const SkPixmap& pmap) {
SkBitmap bitmap;
bitmap.installPixels(pmap);
canvas->drawBitmap(bitmap, 0, 0, nullptr);
}
static void show_scaled_pixels(SkCanvas* canvas, SkImage* image) {
SkAutoCanvasRestore acr(canvas, true);
canvas->drawImage(image, 0, 0, nullptr);
canvas->translate(110, 10);
const SkImageInfo info = SkImageInfo::MakeN32Premul(40, 40);
SkAutoPixmapStorage storage;
storage.alloc(info);
const SkImage::CachingHint chints[] = {
SkImage::kAllow_CachingHint, SkImage::kDisallow_CachingHint,
};
const SkFilterQuality qualities[] = {
kNone_SkFilterQuality, kLow_SkFilterQuality, kMedium_SkFilterQuality, kHigh_SkFilterQuality,
};
for (auto ch : chints) {
canvas->save();
for (auto q : qualities) {
if (image->scalePixels(storage, q, ch)) {
draw_pixmap(canvas, storage);
}
canvas->translate(70, 0);
}
canvas->restore();
canvas->translate(0, 45);
}
}
static void draw_contents(SkCanvas* canvas) {
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(20);
canvas->drawCircle(50, 50, 35, paint);
}
static sk_sp<SkImage> make_raster(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
auto surface(SkSurface::MakeRaster(info));
draw(surface->getCanvas());
return surface->makeImageSnapshot();
}
static sk_sp<SkImage> make_picture(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
SkPictureRecorder recorder;
draw(recorder.beginRecording(SkRect::MakeIWH(info.width(), info.height())));
return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
info.dimensions(), nullptr, nullptr, SkImage::BitDepth::kU8,
SkColorSpace::MakeSRGB());
}
static sk_sp<SkImage> make_codec(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
sk_sp<SkImage> image(make_raster(info, nullptr, draw));
return SkImage::MakeFromEncoded(image->encodeToData());
}
static sk_sp<SkImage> make_gpu(const SkImageInfo& info, GrContext* ctx, void (*draw)(SkCanvas*)) {
if (!ctx) { return nullptr; }
auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info));
if (!surface) { return nullptr; }
draw(surface->getCanvas());
return surface->makeImageSnapshot();
}
typedef sk_sp<SkImage> (*ImageMakerProc)(const SkImageInfo&, GrContext*, void (*)(SkCanvas*));
class ScalePixelsGM : public skiagm::GM {
public:
ScalePixelsGM() {}
protected:
SkString onShortName() override {
return SkString("scale-pixels");
}
SkISize onISize() override {
return SkISize::Make(960, 1200);
}
void onDraw(SkCanvas* canvas) override {
const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
const ImageMakerProc procs[] = {
make_codec, make_raster, make_picture, make_codec, make_gpu,
};
for (auto& proc : procs) {
sk_sp<SkImage> image(proc(info, canvas->getGrContext(), draw_contents));
if (image) {
show_scaled_pixels(canvas, image.get());
}
canvas->translate(0, 120);
}
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new ScalePixelsGM; )
///////////////////////////////////////////////////////////////////////////////////////////////////
DEF_SIMPLE_GPU_GM(new_texture_image, context, rtc, canvas, 280, 60) {
auto render_image = [](SkCanvas* canvas) {
canvas->clear(SK_ColorBLUE);
SkPaint paint;
paint.setColor(SK_ColorRED);
canvas->drawRect(SkRect::MakeXYWH(10.f,10.f,10.f,10.f), paint);
paint.setColor(SK_ColorGREEN);
canvas->drawRect(SkRect::MakeXYWH(30.f,10.f,10.f,10.f), paint);
paint.setColor(SK_ColorYELLOW);
canvas->drawRect(SkRect::MakeXYWH(10.f,30.f,10.f,10.f), paint);
paint.setColor(SK_ColorCYAN);
canvas->drawRect(SkRect::MakeXYWH(30.f,30.f,10.f,10.f), paint);
};
static constexpr int kSize = 50;
SkBitmap bmp;
bmp.allocPixels(SkImageInfo::MakeS32(kSize, kSize, kPremul_SkAlphaType));
SkCanvas bmpCanvas(bmp);
render_image(&bmpCanvas);
std::function<sk_sp<SkImage>()> imageFactories[] = {
// Create sw raster image.
[bmp] {
return SkImage::MakeFromBitmap(bmp);
},
// Create encoded image.
[bmp] {
auto src = SkEncodeBitmap(bmp, SkEncodedImageFormat::kPNG, 100);
return SkImage::MakeFromEncoded(std::move(src));
},
// Create YUV encoded image.
[bmp] {
auto src = SkEncodeBitmap(bmp, SkEncodedImageFormat::kJPEG, 100);
return SkImage::MakeFromEncoded(std::move(src));
},
// Create a picture image.
[render_image] {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kSize), SkIntToScalar(kSize));
render_image(canvas);
sk_sp<SkColorSpace> srgbColorSpace = SkColorSpace::MakeSRGB();
return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
SkISize::Make(kSize, kSize), nullptr, nullptr,
SkImage::BitDepth::kU8, srgbColorSpace);
},
// Create a texture image
[context, render_image]() -> sk_sp<SkImage> {
auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kYes,
SkImageInfo::MakeS32(kSize, kSize,
kPremul_SkAlphaType)));
if (!surface) {
return nullptr;
}
render_image(surface->getCanvas());
return surface->makeImageSnapshot();
}
};
constexpr SkScalar kPad = 5.f;
canvas->translate(kPad, kPad);
for (auto factory : imageFactories) {
auto image(factory());
if (image) {
sk_sp<SkImage> texImage(image->makeTextureImage(context,
canvas->imageInfo().colorSpace()));
if (texImage) {
canvas->drawImage(texImage, 0, 0);
}
}
canvas->translate(kSize + kPad, 0);
}
}
static void draw_pixmap(SkCanvas* canvas, const SkPixmap& pm, SkScalar x, SkScalar y) {
canvas->drawImage(SkImage::MakeRasterCopy(pm), x, y, nullptr);
}
static void slam_ff(const SkPixmap& pm) {
for (int y = 0; y < pm.height(); ++y) {
for (int x = 0; x < pm.width(); ++x) {
*pm.writable_addr32(x, y) = *pm.addr32(x, y) | SkPackARGB32(0xFF, 0, 0, 0);
}
}
}
DEF_SIMPLE_GM(scalepixels_unpremul, canvas, 1080, 280) {
SkImageInfo info = SkImageInfo::MakeN32(16, 16, kUnpremul_SkAlphaType);
SkAutoPixmapStorage pm;
pm.alloc(info);
for (int y = 0; y < 16; ++y) {
for (int x = 0; x < 16; ++x) {
*pm.writable_addr32(x, y) = SkPackARGB32NoCheck(0, (y << 4) | y, (x << 4) | x, 0xFF);
}
}
SkAutoPixmapStorage pm2;
pm2.alloc(SkImageInfo::MakeN32(256, 256, kUnpremul_SkAlphaType));
const SkFilterQuality qualities[] = {
kNone_SkFilterQuality, kLow_SkFilterQuality, kMedium_SkFilterQuality, kHigh_SkFilterQuality
};
for (auto fq : qualities) {
pm.scalePixels(pm2, fq);
slam_ff(pm2);
draw_pixmap(canvas, pm2, 10, 10);
canvas->translate(pm2.width() + 10.0f, 0);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
static sk_sp<SkImage> make_lazy_image(SkSurface* surf) {
surf->getCanvas()->drawCircle(100, 100, 100, SkPaint());
sk_sp<SkData> data = surf->makeImageSnapshot()->encodeToData();
if (!data) {
return nullptr;
}
return SkImage::MakeFromEncoded(std::move(data));
}
static sk_sp<SkImage> serial_deserial(SkImage* img) {
SkBinaryWriteBuffer writer;
writer.writeImage(img);
size_t length = writer.bytesWritten();
auto data = SkData::MakeUninitialized(length);
writer.writeToMemory(data->writable_data());
SkReadBuffer reader(data->data(), length);
return reader.readImage();
}
DEF_SIMPLE_GM_CAN_FAIL(image_subset, canvas, errorMsg, 440, 220) {
SkImageInfo info = SkImageInfo::MakeN32Premul(200, 200, nullptr);
auto surf = ToolUtils::makeSurface(canvas, info, nullptr);
auto img = make_lazy_image(surf.get());
if (!img) {
*errorMsg = "Failed to make lazy image.";
return skiagm::DrawResult::kFail;
}
canvas->drawImage(img, 10, 10, nullptr);
auto sub = img->makeSubset({100, 100, 200, 200});
canvas->drawImage(sub, 220, 10);
sub = serial_deserial(sub.get());
canvas->drawImage(sub, 220+110, 10);
return skiagm::DrawResult::kOk;
}
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