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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#include "Resources.h"
#include "Test.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#endif
#include "SkCanvas.h"
#include "SkColorSpace_Base.h"
#include "SkImage.h"
#include "SkSurface.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
static void test_flatten(skiatest::Reporter* reporter, const SkImageInfo& info) {
// Need a safe amount of 4-byte aligned storage. Note that one of the test ICC profiles
// is ~7500 bytes.
const size_t storageBytes = 8000;
SkAutoTMalloc<uint32_t> storage(storageBytes / sizeof(uint32_t));
SkBinaryWriteBuffer wb(storage.get(), storageBytes);
info.flatten(wb);
SkASSERT(wb.bytesWritten() < storageBytes);
SkReadBuffer rb(storage.get(), wb.bytesWritten());
// pick a noisy byte pattern, so we ensure that unflatten sets all of our fields
SkImageInfo info2 = SkImageInfo::Make(0xB8, 0xB8, (SkColorType) 0xB8, (SkAlphaType) 0xB8);
info2.unflatten(rb);
REPORTER_ASSERT(reporter, rb.offset() == wb.bytesWritten());
REPORTER_ASSERT(reporter, info == info2);
}
DEF_TEST(ImageInfo_flattening, reporter) {
sk_sp<SkData> data = GetResourceAsData("icc_profiles/HP_ZR30w.icc");
sk_sp<SkColorSpace> space0 = SkColorSpace::MakeICC(data->data(), data->size());
data = GetResourceAsData("icc_profiles/HP_Z32x.icc");
sk_sp<SkColorSpace> space1 = SkColorSpace::MakeICC(data->data(), data->size());
data = GetResourceAsData("icc_profiles/upperLeft.icc");
sk_sp<SkColorSpace> space2 = SkColorSpace::MakeICC(data->data(), data->size());
data = GetResourceAsData("icc_profiles/upperRight.icc");
sk_sp<SkColorSpace> space3 = SkColorSpace::MakeICC(data->data(), data->size());
sk_sp<SkColorSpace> spaces[] = {
nullptr,
SkColorSpace::MakeSRGB(),
space0,
space1,
space2,
space3,
};
for (int ct = 0; ct <= kLastEnum_SkColorType; ++ct) {
for (int at = 0; at <= kLastEnum_SkAlphaType; ++at) {
for (auto& cs : spaces) {
SkImageInfo info = SkImageInfo::Make(100, 200,
static_cast<SkColorType>(ct),
static_cast<SkAlphaType>(at),
cs);
test_flatten(reporter, info);
}
}
}
}
static void check_isopaque(skiatest::Reporter* reporter, const sk_sp<SkSurface>& surface,
bool expectedOpaque) {
sk_sp<SkImage> image(surface->makeImageSnapshot());
REPORTER_ASSERT(reporter, image->isOpaque() == expectedOpaque);
}
DEF_TEST(ImageIsOpaqueTest, reporter) {
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
auto surfaceTransparent(SkSurface::MakeRaster(infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
auto surfaceOpaque(SkSurface::MakeRaster(infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageIsOpaqueTest_Gpu, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
auto surfaceTransparent(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
auto surfaceOpaque(SkSurface::MakeRenderTarget(context,SkBudgeted::kNo, infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
#endif
///////////////////////////////////////////////////////////////////////////////////////////////////
#include "SkPictureRecorder.h"
static sk_sp<SkPicture> make_picture() {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording({ 0, 0, 10, 10 });
canvas->drawColor(SK_ColorRED);
return recorder.finishRecordingAsPicture();
}
DEF_TEST(Image_isAlphaOnly, reporter) {
SkPMColor pmColors = 0;
SkPixmap pmap = {
SkImageInfo::MakeN32Premul(1, 1),
&pmColors,
sizeof(pmColors)
};
for (auto& image : {
SkImage::MakeRasterCopy(pmap),
GetResourceAsImage("images/mandrill_128.png"),
GetResourceAsImage("images/color_wheel.jpg"),
SkImage::MakeFromPicture(make_picture(), { 10, 10 }, nullptr, nullptr,
SkImage::BitDepth::kU8,
SkColorSpace::MakeSRGB()),
})
{
REPORTER_ASSERT(reporter, image->isAlphaOnly() == false);
}
REPORTER_ASSERT(reporter, SkImage::MakeRasterCopy({
SkImageInfo::MakeA8(1, 1), (uint8_t*)&pmColors, 1})->isAlphaOnly() == true);
}
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