blob: c2edef2b9ea49e16700ecab0b0509c9eebef4419 [file] [log] [blame]
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkData.h"
#include "include/core/SkFont.h"
#include "include/core/SkImage.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSamplingOptions.h"
#include "include/core/SkSerialProcs.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkTDArray.h"
#include "tests/Test.h"
#include "tools/Resources.h"
#include "tools/ToolUtils.h"
#include <algorithm>
#include <cstring>
#include <functional>
#include <iterator>
static sk_sp<SkImage> picture_to_image(sk_sp<SkPicture> pic) {
SkIRect r = pic->cullRect().round();
auto surf = SkSurface::MakeRasterN32Premul(r.width(), r.height());
surf->getCanvas()->drawPicture(pic);
return surf->makeImageSnapshot();
}
struct State {
const char* fStr;
SkImage* fImg;
};
DEF_TEST(serial_procs_image, reporter) {
auto src_img = GetResourceAsImage("images/mandrill_128.png");
const char magic_str[] = "magic signature";
const SkSerialImageProc sprocs[] = {
[](SkImage* img, void* ctx) -> sk_sp<SkData> { return nullptr; },
[](SkImage* img, void* ctx) { return img->encodeToData(); },
[](SkImage* img, void* ctx) { return SkData::MakeWithCString(((State*)ctx)->fStr); },
};
const SkDeserialImageProc dprocs[] = {
[](const void* data, size_t length, void*) -> sk_sp<SkImage> {
return nullptr;
},
[](const void* data, size_t length, void*) {
return SkImage::MakeFromEncoded(SkData::MakeWithCopy(data, length));
},
[](const void* data, size_t length, void* ctx) -> sk_sp<SkImage> {
State* state = (State*)ctx;
if (length != strlen(state->fStr)+1 || 0 != memcmp(data, state->fStr, length)) {
return nullptr;
}
return sk_ref_sp(state->fImg);
},
};
sk_sp<SkPicture> pic;
{
SkPictureRecorder rec;
SkCanvas* canvas = rec.beginRecording(128, 128);
canvas->drawImage(src_img, 0, 0);
pic = rec.finishRecordingAsPicture();
}
State state = { magic_str, src_img.get() };
SkSerialProcs sproc;
sproc.fImageCtx = &state;
SkDeserialProcs dproc;
dproc.fImageCtx = &state;
for (size_t i = 0; i < std::size(sprocs); ++i) {
sproc.fImageProc = sprocs[i];
auto data = pic->serialize(&sproc);
REPORTER_ASSERT(reporter, data);
dproc.fImageProc = dprocs[i];
auto new_pic = SkPicture::MakeFromData(data.get(), &dproc);
REPORTER_ASSERT(reporter, data);
auto dst_img = picture_to_image(new_pic);
REPORTER_ASSERT(reporter, ToolUtils::equal_pixels(src_img.get(), dst_img.get()));
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
static sk_sp<SkPicture> make_pic(const std::function<void(SkCanvas*)>& drawer) {
SkPictureRecorder rec;
drawer(rec.beginRecording(128, 128));
return rec.finishRecordingAsPicture();
}
static SkSerialProcs makes(SkSerialPictureProc proc, void* ctx = nullptr) {
SkSerialProcs procs;
procs.fPictureProc = proc;
procs.fPictureCtx = ctx;
return procs;
}
static SkDeserialProcs maked(SkDeserialPictureProc proc, const void* ctx = nullptr) {
SkDeserialProcs procs;
procs.fPictureProc = proc;
procs.fPictureCtx = const_cast<void*>(ctx);
return procs;
}
// packages the picture's point in the skdata, and records it in the ctx as an array
struct Context {
SkTDArray<SkPicture*> fArray;
SkPicture* fSkipMe = nullptr;
};
static sk_sp<SkData> array_serial_proc(SkPicture* pic, void* ctx) {
Context* c = (Context*)ctx;
if (c->fSkipMe == pic) {
return nullptr;
}
*c->fArray.append() = pic;
return SkData::MakeWithCopy(&pic, sizeof(pic));
}
static sk_sp<SkPicture> array_deserial_proc(const void* data, size_t size, void* ctx) {
SkASSERT(sizeof(SkPicture*) == size);
Context* c = (Context*)ctx;
SkPicture* pic;
memcpy(&pic, data, size);
auto found = std::find(c->fArray.begin(), c->fArray.end(), pic);
SkASSERT(found != c->fArray.end());
if (found != c->fArray.end()) {
c->fArray.removeShuffle(std::distance(c->fArray.begin(), found));
}
return sk_ref_sp(pic);
}
static void test_pictures(skiatest::Reporter* reporter, sk_sp<SkPicture> p0, int count,
bool skipRoot) {
Context ctx;
if (skipRoot) {
ctx.fSkipMe = p0.get();
}
SkSerialProcs sprocs = makes(array_serial_proc, &ctx);
auto d0 = p0->serialize(&sprocs);
REPORTER_ASSERT(reporter, ctx.fArray.size() == count);
SkDeserialProcs dprocs = maked(array_deserial_proc, &ctx);
p0 = SkPicture::MakeFromData(d0.get(), &dprocs);
REPORTER_ASSERT(reporter, ctx.fArray.size() == 0);
}
DEF_TEST(serial_procs_picture, reporter) {
auto p1 = make_pic([](SkCanvas* c) {
// need to be large enough that drawPictures doesn't "unroll" us
for (int i = 0; i < 20; ++i) {
c->drawColor(SK_ColorRED);
}
});
// now use custom serialization
auto p0 = make_pic([](SkCanvas* c) { c->drawColor(SK_ColorBLUE); });
test_pictures(reporter, p0, 1, false);
// test inside effect
p0 = make_pic([p1](SkCanvas* c) {
SkPaint paint;
SkTileMode tm = SkTileMode::kClamp;
paint.setShader(p1->makeShader(tm, tm, SkFilterMode::kNearest));
c->drawPaint(paint);
});
test_pictures(reporter, p0, 1, true);
// test nested picture
p0 = make_pic([p1](SkCanvas* c) {
c->drawColor(SK_ColorRED);
c->drawPicture(p1);
c->drawColor(SK_ColorBLUE);
});
test_pictures(reporter, p0, 1, true);
}
static sk_sp<SkPicture> make_picture(sk_sp<SkTypeface> tf0, sk_sp<SkTypeface> tf1) {
SkPictureRecorder rec;
SkCanvas* canvas = rec.beginRecording(100, 100);
SkPaint paint;
SkFont font;
font.setTypeface(tf0); canvas->drawString("hello", 0, 0, font, paint);
font.setTypeface(tf1); canvas->drawString("hello", 0, 0, font, paint);
font.setTypeface(tf0); canvas->drawString("hello", 0, 0, font, paint);
font.setTypeface(tf1); canvas->drawString("hello", 0, 0, font, paint);
return rec.finishRecordingAsPicture();
}
DEF_TEST(serial_typeface, reporter) {
auto tf0 = MakeResourceAsTypeface("fonts/hintgasp.ttf");
auto tf1 = MakeResourceAsTypeface("fonts/Roboto2-Regular_NoEmbed.ttf");
if (!tf0 || !tf1 || tf0.get() == tf1.get()) {
return; // need two different typefaces for this test to make sense.
}
auto pic = make_picture(tf0, tf1);
int counter = 0;
SkSerialProcs procs;
procs.fTypefaceProc = [](SkTypeface* tf, void* ctx) -> sk_sp<SkData> {
*(int*)ctx += 1;
return nullptr;
};
procs.fTypefaceCtx = &counter;
auto data = pic->serialize(&procs);
// The picture has 2 references to each typeface, but we want the serialized picture to
// only have written the data 1 time per typeface.
REPORTER_ASSERT(reporter, counter == 2);
}