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skia2/tests/ImageTest.cpp
Brian Osman 6c15cc7e9d Modify deferred texture image API's handling of gamma 
This tries to match the behavior you would see if you rendered directly to
a canvas without going through this round-trip. Specifically, mips are
built in the same way that they would be according to the context's
internal logic. To make things clearer, the user passes in the color space
of the destination surface, not our (internal) enum.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3526

Change-Id: If8c61500d34ae712227da0284f3a80cacf84113a
Reviewed-on: https://skia-review.googlesource.com/3526
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2016-10-17 20:48:55 +00:00

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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <functional>
#include <initializer_list>
#include <vector>
#include "SkAutoPixmapStorage.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkData.h"
#include "SkImageEncoder.h"
#include "SkImageGenerator.h"
#include "SkImage_Base.h"
#include "SkImagePriv.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkPixelSerializer.h"
#include "SkRRect.h"
#include "SkStream.h"
#include "SkSurface.h"
#include "SkUtils.h"
#include "Test.h"
#if SK_SUPPORT_GPU
#include "GrGpu.h"
#endif
using namespace sk_gpu_test;
static void assert_equal(skiatest::Reporter* reporter, SkImage* a, const SkIRect* subsetA,
SkImage* b) {
const int widthA = subsetA ? subsetA->width() : a->width();
const int heightA = subsetA ? subsetA->height() : a->height();
REPORTER_ASSERT(reporter, widthA == b->width());
REPORTER_ASSERT(reporter, heightA == b->height());
// see https://bug.skia.org/3965
//REPORTER_ASSERT(reporter, a->isOpaque() == b->isOpaque());
SkImageInfo info = SkImageInfo::MakeN32(widthA, heightA, a->alphaType());
SkAutoPixmapStorage pmapA, pmapB;
pmapA.alloc(info);
pmapB.alloc(info);
const int srcX = subsetA ? subsetA->x() : 0;
const int srcY = subsetA ? subsetA->y() : 0;
REPORTER_ASSERT(reporter, a->readPixels(pmapA, srcX, srcY));
REPORTER_ASSERT(reporter, b->readPixels(pmapB, 0, 0));
const size_t widthBytes = widthA * info.bytesPerPixel();
for (int y = 0; y < heightA; ++y) {
REPORTER_ASSERT(reporter, !memcmp(pmapA.addr32(0, y), pmapB.addr32(0, y), widthBytes));
}
}
static void draw_image_test_pattern(SkCanvas* canvas) {
canvas->clear(SK_ColorWHITE);
SkPaint paint;
paint.setColor(SK_ColorBLACK);
canvas->drawRect(SkRect::MakeXYWH(5, 5, 10, 10), paint);
}
static sk_sp<SkImage> create_image() {
const SkImageInfo info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
auto surface(SkSurface::MakeRaster(info));
draw_image_test_pattern(surface->getCanvas());
return surface->makeImageSnapshot();
}
static sk_sp<SkData> create_image_data(SkImageInfo* info) {
*info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
const size_t rowBytes = info->minRowBytes();
sk_sp<SkData> data(SkData::MakeUninitialized(rowBytes * info->height()));
{
SkBitmap bm;
bm.installPixels(*info, data->writable_data(), rowBytes);
SkCanvas canvas(bm);
draw_image_test_pattern(&canvas);
}
return data;
}
static sk_sp<SkImage> create_data_image() {
SkImageInfo info;
sk_sp<SkData> data(create_image_data(&info));
return SkImage::MakeRasterData(info, std::move(data), info.minRowBytes());
}
#if SK_SUPPORT_GPU // not gpu-specific but currently only used in GPU tests
static sk_sp<SkImage> create_image_565() {
const SkImageInfo info = SkImageInfo::Make(20, 20, kRGB_565_SkColorType, kOpaque_SkAlphaType);
auto surface(SkSurface::MakeRaster(info));
draw_image_test_pattern(surface->getCanvas());
return surface->makeImageSnapshot();
}
static sk_sp<SkImage> create_image_large() {
const SkImageInfo info = SkImageInfo::MakeN32(32000, 32, kOpaque_SkAlphaType);
auto surface(SkSurface::MakeRaster(info));
surface->getCanvas()->clear(SK_ColorWHITE);
SkPaint paint;
paint.setColor(SK_ColorBLACK);
surface->getCanvas()->drawRect(SkRect::MakeXYWH(4000, 2, 28000, 30), paint);
return surface->makeImageSnapshot();
}
static sk_sp<SkImage> create_image_ct() {
SkPMColor colors[] = {
SkPreMultiplyARGB(0xFF, 0xFF, 0xFF, 0x00),
SkPreMultiplyARGB(0x80, 0x00, 0xA0, 0xFF),
SkPreMultiplyARGB(0xFF, 0xBB, 0x00, 0xBB)
};
SkAutoTUnref<SkColorTable> colorTable(new SkColorTable(colors, SK_ARRAY_COUNT(colors)));
uint8_t data[] = {
0, 0, 0, 0, 0,
0, 1, 1, 1, 0,
0, 1, 2, 1, 0,
0, 1, 1, 1, 0,
0, 0, 0, 0, 0
};
SkImageInfo info = SkImageInfo::Make(5, 5, kIndex_8_SkColorType, kPremul_SkAlphaType);
return SkImage::MakeRasterCopy(SkPixmap(info, data, 5, colorTable));
}
static sk_sp<SkImage> create_picture_image() {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clear(SK_ColorCYAN);
return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(), SkISize::Make(10, 10),
nullptr, nullptr);
};
#endif
// Want to ensure that our Release is called when the owning image is destroyed
struct RasterDataHolder {
RasterDataHolder() : fReleaseCount(0) {}
sk_sp<SkData> fData;
int fReleaseCount;
static void Release(const void* pixels, void* context) {
RasterDataHolder* self = static_cast<RasterDataHolder*>(context);
self->fReleaseCount++;
self->fData.reset();
}
};
static sk_sp<SkImage> create_rasterproc_image(RasterDataHolder* dataHolder) {
SkASSERT(dataHolder);
SkImageInfo info;
dataHolder->fData = create_image_data(&info);
return SkImage::MakeFromRaster(SkPixmap(info, dataHolder->fData->data(), info.minRowBytes()),
RasterDataHolder::Release, dataHolder);
}
static sk_sp<SkImage> create_codec_image() {
SkImageInfo info;
sk_sp<SkData> data(create_image_data(&info));
SkBitmap bitmap;
bitmap.installPixels(info, data->writable_data(), info.minRowBytes());
sk_sp<SkData> src(SkImageEncoder::EncodeData(bitmap, SkImageEncoder::kPNG_Type, 100));
return SkImage::MakeFromEncoded(std::move(src));
}
#if SK_SUPPORT_GPU
static sk_sp<SkImage> create_gpu_image(GrContext* context) {
const SkImageInfo info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info));
draw_image_test_pattern(surface->getCanvas());
return surface->makeImageSnapshot();
}
#endif
static void test_encode(skiatest::Reporter* reporter, SkImage* image) {
const SkIRect ir = SkIRect::MakeXYWH(5, 5, 10, 10);
sk_sp<SkData> origEncoded(image->encode());
REPORTER_ASSERT(reporter, origEncoded);
REPORTER_ASSERT(reporter, origEncoded->size() > 0);
sk_sp<SkImage> decoded(SkImage::MakeFromEncoded(origEncoded));
if (!decoded) {
ERRORF(reporter, "failed to decode image!");
return;
}
REPORTER_ASSERT(reporter, decoded);
assert_equal(reporter, image, nullptr, decoded.get());
// Now see if we can instantiate an image from a subset of the surface/origEncoded
decoded = SkImage::MakeFromEncoded(origEncoded, &ir);
REPORTER_ASSERT(reporter, decoded);
assert_equal(reporter, image, &ir, decoded.get());
}
DEF_TEST(ImageEncode, reporter) {
test_encode(reporter, create_image().get());
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageEncode_Gpu, reporter, ctxInfo) {
test_encode(reporter, create_gpu_image(ctxInfo.grContext()).get());
}
#endif
DEF_TEST(Image_MakeFromRasterBitmap, reporter) {
const struct {
SkCopyPixelsMode fCPM;
bool fExpectSameAsMutable;
bool fExpectSameAsImmutable;
} recs[] = {
{ kIfMutable_SkCopyPixelsMode, false, true },
{ kAlways_SkCopyPixelsMode, false, false },
{ kNever_SkCopyPixelsMode, true, true },
};
for (auto rec : recs) {
SkPixmap pm;
SkBitmap bm;
bm.allocN32Pixels(100, 100);
auto img = SkMakeImageFromRasterBitmap(bm, rec.fCPM);
REPORTER_ASSERT(reporter, img->peekPixels(&pm));
const bool sameMutable = pm.addr32(0, 0) == bm.getAddr32(0, 0);
REPORTER_ASSERT(reporter, rec.fExpectSameAsMutable == sameMutable);
REPORTER_ASSERT(reporter, (bm.getGenerationID() == img->uniqueID()) == sameMutable);
bm.notifyPixelsChanged(); // force a new generation ID
bm.setImmutable();
img = SkMakeImageFromRasterBitmap(bm, rec.fCPM);
REPORTER_ASSERT(reporter, img->peekPixels(&pm));
const bool sameImmutable = pm.addr32(0, 0) == bm.getAddr32(0, 0);
REPORTER_ASSERT(reporter, rec.fExpectSameAsImmutable == sameImmutable);
REPORTER_ASSERT(reporter, (bm.getGenerationID() == img->uniqueID()) == sameImmutable);
}
}
namespace {
const char* kSerializedData = "serialized";
class MockSerializer : public SkPixelSerializer {
public:
MockSerializer(sk_sp<SkData> (*func)()) : fFunc(func), fDidEncode(false) { }
bool didEncode() const { return fDidEncode; }
protected:
bool onUseEncodedData(const void*, size_t) override {
return false;
}
SkData* onEncode(const SkPixmap&) override {
fDidEncode = true;
return fFunc().release();
}
private:
sk_sp<SkData> (*fFunc)();
bool fDidEncode;
typedef SkPixelSerializer INHERITED;
};
} // anonymous namespace
// Test that SkImage encoding observes custom pixel serializers.
DEF_TEST(Image_Encode_Serializer, reporter) {
MockSerializer serializer([]() -> sk_sp<SkData> {
return SkData::MakeWithCString(kSerializedData);
});
sk_sp<SkImage> image(create_image());
sk_sp<SkData> encoded(image->encode(&serializer));
sk_sp<SkData> reference(SkData::MakeWithCString(kSerializedData));
REPORTER_ASSERT(reporter, serializer.didEncode());
REPORTER_ASSERT(reporter, encoded);
REPORTER_ASSERT(reporter, encoded->size() > 0);
REPORTER_ASSERT(reporter, encoded->equals(reference.get()));
}
// Test that image encoding failures do not break picture serialization/deserialization.
DEF_TEST(Image_Serialize_Encoding_Failure, reporter) {
auto surface(SkSurface::MakeRasterN32Premul(100, 100));
surface->getCanvas()->clear(SK_ColorGREEN);
sk_sp<SkImage> image(surface->makeImageSnapshot());
REPORTER_ASSERT(reporter, image);
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->drawImage(image, 0, 0);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, picture);
REPORTER_ASSERT(reporter, picture->approximateOpCount() > 0);
MockSerializer emptySerializer([]() -> sk_sp<SkData> { return SkData::MakeEmpty(); });
MockSerializer nullSerializer([]() -> sk_sp<SkData> { return nullptr; });
MockSerializer* serializers[] = { &emptySerializer, &nullSerializer };
for (size_t i = 0; i < SK_ARRAY_COUNT(serializers); ++i) {
SkDynamicMemoryWStream wstream;
REPORTER_ASSERT(reporter, !serializers[i]->didEncode());
picture->serialize(&wstream, serializers[i]);
REPORTER_ASSERT(reporter, serializers[i]->didEncode());
SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
sk_sp<SkPicture> deserialized(SkPicture::MakeFromStream(rstream));
REPORTER_ASSERT(reporter, deserialized);
REPORTER_ASSERT(reporter, deserialized->approximateOpCount() > 0);
}
}
DEF_TEST(Image_NewRasterCopy, reporter) {
const SkPMColor red = SkPackARGB32(0xFF, 0xFF, 0, 0);
const SkPMColor green = SkPackARGB32(0xFF, 0, 0xFF, 0);
const SkPMColor blue = SkPackARGB32(0xFF, 0, 0, 0xFF);
SkPMColor colors[] = { red, green, blue, 0 };
SkAutoTUnref<SkColorTable> ctable(new SkColorTable(colors, SK_ARRAY_COUNT(colors)));
// The colortable made a copy, so we can trash the original colors
memset(colors, 0xFF, sizeof(colors));
const SkImageInfo srcInfo = SkImageInfo::Make(2, 2, kIndex_8_SkColorType, kPremul_SkAlphaType);
const size_t srcRowBytes = 2 * sizeof(uint8_t);
uint8_t indices[] = { 0, 1, 2, 3 };
sk_sp<SkImage> image(SkImage::MakeRasterCopy(SkPixmap(srcInfo, indices, srcRowBytes, ctable)));
// The image made a copy, so we can trash the original indices
memset(indices, 0xFF, sizeof(indices));
const SkImageInfo dstInfo = SkImageInfo::MakeN32Premul(2, 2);
const size_t dstRowBytes = 2 * sizeof(SkPMColor);
SkPMColor pixels[4];
memset(pixels, 0xFF, sizeof(pixels)); // init with values we don't expect
image->readPixels(dstInfo, pixels, dstRowBytes, 0, 0);
REPORTER_ASSERT(reporter, red == pixels[0]);
REPORTER_ASSERT(reporter, green == pixels[1]);
REPORTER_ASSERT(reporter, blue == pixels[2]);
REPORTER_ASSERT(reporter, 0 == pixels[3]);
}
// Test that a draw that only partially covers the drawing surface isn't
// interpreted as covering the entire drawing surface (i.e., exercise one of the
// conditions of SkCanvas::wouldOverwriteEntireSurface()).
DEF_TEST(Image_RetainSnapshot, reporter) {
const SkPMColor red = SkPackARGB32(0xFF, 0xFF, 0, 0);
const SkPMColor green = SkPackARGB32(0xFF, 0, 0xFF, 0);
SkImageInfo info = SkImageInfo::MakeN32Premul(2, 2);
auto surface(SkSurface::MakeRaster(info));
surface->getCanvas()->clear(0xFF00FF00);
SkPMColor pixels[4];
memset(pixels, 0xFF, sizeof(pixels)); // init with values we don't expect
const SkImageInfo dstInfo = SkImageInfo::MakeN32Premul(2, 2);
const size_t dstRowBytes = 2 * sizeof(SkPMColor);
sk_sp<SkImage> image1(surface->makeImageSnapshot());
REPORTER_ASSERT(reporter, image1->readPixels(dstInfo, pixels, dstRowBytes, 0, 0));
for (size_t i = 0; i < SK_ARRAY_COUNT(pixels); ++i) {
REPORTER_ASSERT(reporter, pixels[i] == green);
}
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc);
paint.setColor(SK_ColorRED);
surface->getCanvas()->drawRect(SkRect::MakeXYWH(1, 1, 1, 1), paint);
sk_sp<SkImage> image2(surface->makeImageSnapshot());
REPORTER_ASSERT(reporter, image2->readPixels(dstInfo, pixels, dstRowBytes, 0, 0));
REPORTER_ASSERT(reporter, pixels[0] == green);
REPORTER_ASSERT(reporter, pixels[1] == green);
REPORTER_ASSERT(reporter, pixels[2] == green);
REPORTER_ASSERT(reporter, pixels[3] == red);
}
/////////////////////////////////////////////////////////////////////////////////////////////////
static void make_bitmap_mutable(SkBitmap* bm) {
bm->allocN32Pixels(10, 10);
}
static void make_bitmap_immutable(SkBitmap* bm) {
bm->allocN32Pixels(10, 10);
bm->setImmutable();
}
DEF_TEST(image_newfrombitmap, reporter) {
const struct {
void (*fMakeProc)(SkBitmap*);
bool fExpectPeekSuccess;
bool fExpectSharedID;
bool fExpectLazy;
} rec[] = {
{ make_bitmap_mutable, true, false, false },
{ make_bitmap_immutable, true, true, false },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
SkBitmap bm;
rec[i].fMakeProc(&bm);
sk_sp<SkImage> image(SkImage::MakeFromBitmap(bm));
SkPixmap pmap;
const bool sharedID = (image->uniqueID() == bm.getGenerationID());
REPORTER_ASSERT(reporter, sharedID == rec[i].fExpectSharedID);
const bool peekSuccess = image->peekPixels(&pmap);
REPORTER_ASSERT(reporter, peekSuccess == rec[i].fExpectPeekSuccess);
const bool lazy = image->isLazyGenerated();
REPORTER_ASSERT(reporter, lazy == rec[i].fExpectLazy);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
#if SK_SUPPORT_GPU
#include "SkBitmapCache.h"
/*
* This tests the caching (and preemptive purge) of the raster equivalent of a gpu-image.
* We cache it for performance when drawing into a raster surface.
*
* A cleaner test would know if each drawImage call triggered a read-back from the gpu,
* but we don't have that facility (at the moment) so we use a little internal knowledge
* of *how* the raster version is cached, and look for that.
*/
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(c, reporter, ctxInfo) {
SkImageInfo info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
sk_sp<SkImage> image(create_gpu_image(ctxInfo.grContext()));
const uint32_t uniqueID = image->uniqueID();
auto surface(SkSurface::MakeRaster(info));
// now we can test drawing a gpu-backed image into a cpu-backed surface
{
SkBitmap cachedBitmap;
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(uniqueID, &cachedBitmap));
}
surface->getCanvas()->drawImage(image, 0, 0);
{
SkBitmap cachedBitmap;
if (SkBitmapCache::Find(uniqueID, &cachedBitmap)) {
REPORTER_ASSERT(reporter, cachedBitmap.getGenerationID() == uniqueID);
REPORTER_ASSERT(reporter, cachedBitmap.isImmutable());
REPORTER_ASSERT(reporter, cachedBitmap.getPixels());
} else {
// unexpected, but not really a bug, since the cache is global and this test may be
// run w/ other threads competing for its budget.
SkDebugf("SkImage_Gpu2Cpu : cachedBitmap was already purged\n");
}
}
image.reset(nullptr);
{
SkBitmap cachedBitmap;
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(uniqueID, &cachedBitmap));
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SkImage_newTextureImage, reporter, contextInfo) {
GrContext* context = contextInfo.grContext();
sk_gpu_test::TestContext* testContext = contextInfo.testContext();
GrContextFactory otherFactory;
GrContextFactory::ContextType otherContextType =
GrContextFactory::NativeContextTypeForBackend(testContext->backend());
ContextInfo otherContextInfo = otherFactory.getContextInfo(otherContextType);
testContext->makeCurrent();
std::function<sk_sp<SkImage>()> imageFactories[] = {
create_image,
create_codec_image,
create_data_image,
// Create an image from a picture.
create_picture_image,
// Create a texture image.
[context] { return create_gpu_image(context); },
// Create a texture image in a another GrContext.
[testContext, otherContextInfo] {
otherContextInfo.testContext()->makeCurrent();
sk_sp<SkImage> otherContextImage = create_gpu_image(otherContextInfo.grContext());
testContext->makeCurrent();
return otherContextImage;
}
};
for (auto factory : imageFactories) {
sk_sp<SkImage> image(factory());
if (!image) {
ERRORF(reporter, "Error creating image.");
continue;
}
GrTexture* origTexture = as_IB(image)->peekTexture();
sk_sp<SkImage> texImage(image->makeTextureImage(context));
if (!texImage) {
// We execpt to fail if image comes from a different GrContext.
if (!origTexture || origTexture->getContext() == context) {
ERRORF(reporter, "newTextureImage failed.");
}
continue;
}
GrTexture* copyTexture = as_IB(texImage)->peekTexture();
if (!copyTexture) {
ERRORF(reporter, "newTextureImage returned non-texture image.");
continue;
}
if (origTexture) {
if (origTexture != copyTexture) {
ERRORF(reporter, "newTextureImage made unnecessary texture copy.");
}
}
if (image->width() != texImage->width() || image->height() != texImage->height()) {
ERRORF(reporter, "newTextureImage changed the image size.");
}
if (image->alphaType() != texImage->alphaType()) {
ERRORF(reporter, "newTextureImage changed image alpha type.");
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SkImage_makeNonTextureImage, reporter, contextInfo) {
GrContext* context = contextInfo.grContext();
std::function<sk_sp<SkImage>()> imageFactories[] = {
create_image,
create_codec_image,
create_data_image,
create_picture_image,
[context] { return create_gpu_image(context); },
};
for (auto factory : imageFactories) {
sk_sp<SkImage> image = factory();
if (!image->isTextureBacked()) {
REPORTER_ASSERT(reporter, image->makeNonTextureImage().get() == image.get());
if (!(image = image->makeTextureImage(context))) {
continue;
}
}
auto rasterImage = image->makeNonTextureImage();
if (!rasterImage) {
ERRORF(reporter, "makeNonTextureImage failed for texture-backed image.");
}
REPORTER_ASSERT(reporter, !rasterImage->isTextureBacked());
assert_equal(reporter, image.get(), nullptr, rasterImage.get());
}
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(SkImage_drawAbandonedGpuImage, reporter, contextInfo) {
auto context = contextInfo.grContext();
auto image = create_gpu_image(context);
auto info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info));
as_IB(image)->peekTexture()->abandon();
surface->getCanvas()->drawImage(image, 0, 0);
}
#endif
// https://bug.skia.org/4390
DEF_TEST(ImageFromIndex8Bitmap, r) {
SkPMColor pmColors[1] = {SkPreMultiplyColor(SK_ColorWHITE)};
SkBitmap bm;
SkAutoTUnref<SkColorTable> ctable(
new SkColorTable(pmColors, SK_ARRAY_COUNT(pmColors)));
SkImageInfo info =
SkImageInfo::Make(1, 1, kIndex_8_SkColorType, kPremul_SkAlphaType);
bm.allocPixels(info, nullptr, ctable);
SkAutoLockPixels autoLockPixels(bm);
*bm.getAddr8(0, 0) = 0;
sk_sp<SkImage> img(SkImage::MakeFromBitmap(bm));
REPORTER_ASSERT(r, img != nullptr);
}
class EmptyGenerator : public SkImageGenerator {
public:
EmptyGenerator() : SkImageGenerator(SkImageInfo::MakeN32Premul(0, 0)) {}
};
DEF_TEST(ImageEmpty, reporter) {
const SkImageInfo info = SkImageInfo::Make(0, 0, kN32_SkColorType, kPremul_SkAlphaType);
SkPixmap pmap(info, nullptr, 0);
REPORTER_ASSERT(reporter, nullptr == SkImage::MakeRasterCopy(pmap));
REPORTER_ASSERT(reporter, nullptr == SkImage::MakeRasterData(info, nullptr, 0));
REPORTER_ASSERT(reporter, nullptr == SkImage::MakeFromRaster(pmap, nullptr, nullptr));
REPORTER_ASSERT(reporter, nullptr == SkImage::MakeFromGenerator(new EmptyGenerator));
}
DEF_TEST(ImageDataRef, reporter) {
SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
size_t rowBytes = info.minRowBytes();
size_t size = info.getSafeSize(rowBytes);
sk_sp<SkData> data = SkData::MakeUninitialized(size);
REPORTER_ASSERT(reporter, data->unique());
sk_sp<SkImage> image = SkImage::MakeRasterData(info, data, rowBytes);
REPORTER_ASSERT(reporter, !data->unique());
image.reset();
REPORTER_ASSERT(reporter, data->unique());
}
static bool has_pixels(const SkPMColor pixels[], int count, SkPMColor expected) {
for (int i = 0; i < count; ++i) {
if (pixels[i] != expected) {
return false;
}
}
return true;
}
static void test_read_pixels(skiatest::Reporter* reporter, SkImage* image) {
if (!image) {
ERRORF(reporter, "Failed to create image!");
return;
}
const SkPMColor expected = SkPreMultiplyColor(SK_ColorWHITE);
const SkPMColor notExpected = ~expected;
const int w = 2, h = 2;
const size_t rowBytes = w * sizeof(SkPMColor);
SkPMColor pixels[w*h];
SkImageInfo info;
info = SkImageInfo::MakeUnknown(w, h);
REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, 0));
// out-of-bounds should fail
info = SkImageInfo::MakeN32Premul(w, h);
REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, -w, 0));
REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, -h));
REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, image->width(), 0));
REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, image->height()));
// top-left should succeed
sk_memset32(pixels, notExpected, w*h);
REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes, 0, 0));
REPORTER_ASSERT(reporter, has_pixels(pixels, w*h, expected));
// bottom-right should succeed
sk_memset32(pixels, notExpected, w*h);
REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes,
image->width() - w, image->height() - h));
REPORTER_ASSERT(reporter, has_pixels(pixels, w*h, expected));
// partial top-left should succeed
sk_memset32(pixels, notExpected, w*h);
REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes, -1, -1));
REPORTER_ASSERT(reporter, pixels[3] == expected);
REPORTER_ASSERT(reporter, has_pixels(pixels, w*h - 1, notExpected));
// partial bottom-right should succeed
sk_memset32(pixels, notExpected, w*h);
REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes,
image->width() - 1, image->height() - 1));
REPORTER_ASSERT(reporter, pixels[0] == expected);
REPORTER_ASSERT(reporter, has_pixels(&pixels[1], w*h - 1, notExpected));
}
DEF_TEST(ImageReadPixels, reporter) {
sk_sp<SkImage> image(create_image());
test_read_pixels(reporter, image.get());
image = create_data_image();
test_read_pixels(reporter, image.get());
RasterDataHolder dataHolder;
image = create_rasterproc_image(&dataHolder);
test_read_pixels(reporter, image.get());
image.reset();
REPORTER_ASSERT(reporter, 1 == dataHolder.fReleaseCount);
image = create_codec_image();
test_read_pixels(reporter, image.get());
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageReadPixels_Gpu, reporter, ctxInfo) {
test_read_pixels(reporter, create_gpu_image(ctxInfo.grContext()).get());
}
#endif
static void check_legacy_bitmap(skiatest::Reporter* reporter, const SkImage* image,
const SkBitmap& bitmap, SkImage::LegacyBitmapMode mode) {
REPORTER_ASSERT(reporter, image->width() == bitmap.width());
REPORTER_ASSERT(reporter, image->height() == bitmap.height());
REPORTER_ASSERT(reporter, image->alphaType() == bitmap.alphaType());
if (SkImage::kRO_LegacyBitmapMode == mode) {
REPORTER_ASSERT(reporter, bitmap.isImmutable());
}
SkAutoLockPixels alp(bitmap);
REPORTER_ASSERT(reporter, bitmap.getPixels());
const SkImageInfo info = SkImageInfo::MakeN32(1, 1, bitmap.alphaType());
SkPMColor imageColor;
REPORTER_ASSERT(reporter, image->readPixels(info, &imageColor, sizeof(SkPMColor), 0, 0));
REPORTER_ASSERT(reporter, imageColor == *bitmap.getAddr32(0, 0));
}
static void test_legacy_bitmap(skiatest::Reporter* reporter, const SkImage* image, SkImage::LegacyBitmapMode mode) {
if (!image) {
ERRORF(reporter, "Failed to create image.");
return;
}
SkBitmap bitmap;
REPORTER_ASSERT(reporter, image->asLegacyBitmap(&bitmap, mode));
check_legacy_bitmap(reporter, image, bitmap, mode);
// Test subsetting to exercise the rowBytes logic.
SkBitmap tmp;
REPORTER_ASSERT(reporter, bitmap.extractSubset(&tmp, SkIRect::MakeWH(image->width() / 2,
image->height() / 2)));
sk_sp<SkImage> subsetImage(SkImage::MakeFromBitmap(tmp));
REPORTER_ASSERT(reporter, subsetImage.get());
SkBitmap subsetBitmap;
REPORTER_ASSERT(reporter, subsetImage->asLegacyBitmap(&subsetBitmap, mode));
check_legacy_bitmap(reporter, subsetImage.get(), subsetBitmap, mode);
}
DEF_TEST(ImageLegacyBitmap, reporter) {
const SkImage::LegacyBitmapMode modes[] = {
SkImage::kRO_LegacyBitmapMode,
SkImage::kRW_LegacyBitmapMode,
};
for (auto& mode : modes) {
sk_sp<SkImage> image(create_image());
test_legacy_bitmap(reporter, image.get(), mode);
image = create_data_image();
test_legacy_bitmap(reporter, image.get(), mode);
RasterDataHolder dataHolder;
image = create_rasterproc_image(&dataHolder);
test_legacy_bitmap(reporter, image.get(), mode);
image.reset();
REPORTER_ASSERT(reporter, 1 == dataHolder.fReleaseCount);
image = create_codec_image();
test_legacy_bitmap(reporter, image.get(), mode);
}
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageLegacyBitmap_Gpu, reporter, ctxInfo) {
const SkImage::LegacyBitmapMode modes[] = {
SkImage::kRO_LegacyBitmapMode,
SkImage::kRW_LegacyBitmapMode,
};
for (auto& mode : modes) {
sk_sp<SkImage> image(create_gpu_image(ctxInfo.grContext()));
test_legacy_bitmap(reporter, image.get(), mode);
}
}
#endif
static void test_peek(skiatest::Reporter* reporter, SkImage* image, bool expectPeekSuccess) {
if (!image) {
ERRORF(reporter, "Failed to create image!");
return;
}
SkPixmap pm;
bool success = image->peekPixels(&pm);
REPORTER_ASSERT(reporter, expectPeekSuccess == success);
if (success) {
const SkImageInfo& info = pm.info();
REPORTER_ASSERT(reporter, 20 == info.width());
REPORTER_ASSERT(reporter, 20 == info.height());
REPORTER_ASSERT(reporter, kN32_SkColorType == info.colorType());
REPORTER_ASSERT(reporter, kPremul_SkAlphaType == info.alphaType() ||
kOpaque_SkAlphaType == info.alphaType());
REPORTER_ASSERT(reporter, info.minRowBytes() <= pm.rowBytes());
REPORTER_ASSERT(reporter, SkPreMultiplyColor(SK_ColorWHITE) == *pm.addr32(0, 0));
}
}
DEF_TEST(ImagePeek, reporter) {
sk_sp<SkImage> image(create_image());
test_peek(reporter, image.get(), true);
image = create_data_image();
test_peek(reporter, image.get(), true);
RasterDataHolder dataHolder;
image = create_rasterproc_image(&dataHolder);
test_peek(reporter, image.get(), true);
image.reset();
REPORTER_ASSERT(reporter, 1 == dataHolder.fReleaseCount);
image = create_codec_image();
test_peek(reporter, image.get(), false);
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImagePeek_Gpu, reporter, ctxInfo) {
sk_sp<SkImage> image(create_gpu_image(ctxInfo.grContext()));
test_peek(reporter, image.get(), false);
}
#endif
#if SK_SUPPORT_GPU
struct TextureReleaseChecker {
TextureReleaseChecker() : fReleaseCount(0) {}
int fReleaseCount;
static void Release(void* self) {
static_cast<TextureReleaseChecker*>(self)->fReleaseCount++;
}
};
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(SkImage_NewFromTextureRelease, reporter, ctxInfo) {
const int kWidth = 10;
const int kHeight = 10;
SkAutoTDeleteArray<uint32_t> pixels(new uint32_t[kWidth * kHeight]);
GrBackendTextureDesc backendDesc;
backendDesc.fConfig = kRGBA_8888_GrPixelConfig;
backendDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
backendDesc.fWidth = kWidth;
backendDesc.fHeight = kHeight;
backendDesc.fSampleCnt = 0;
backendDesc.fTextureHandle = ctxInfo.grContext()->getGpu()->createTestingOnlyBackendTexture(
pixels.get(), kWidth, kHeight, kRGBA_8888_GrPixelConfig, true);
TextureReleaseChecker releaseChecker;
sk_sp<SkImage> refImg(
SkImage::MakeFromTexture(ctxInfo.grContext(), backendDesc, kPremul_SkAlphaType,
TextureReleaseChecker::Release, &releaseChecker));
// Now exercise the release proc
REPORTER_ASSERT(reporter, 0 == releaseChecker.fReleaseCount);
refImg.reset(nullptr); // force a release of the image
REPORTER_ASSERT(reporter, 1 == releaseChecker.fReleaseCount);
ctxInfo.grContext()->getGpu()->deleteTestingOnlyBackendTexture(backendDesc.fTextureHandle);
}
static void check_images_same(skiatest::Reporter* reporter, const SkImage* a, const SkImage* b) {
if (a->width() != b->width() || a->height() != b->height()) {
ERRORF(reporter, "Images must have the same size");
return;
}
if (a->alphaType() != b->alphaType()) {
ERRORF(reporter, "Images must have the same alpha type");
return;
}
SkImageInfo info = SkImageInfo::MakeN32Premul(a->width(), a->height());
SkAutoPixmapStorage apm;
SkAutoPixmapStorage bpm;
apm.alloc(info);
bpm.alloc(info);
if (!a->readPixels(apm, 0, 0)) {
ERRORF(reporter, "Could not read image a's pixels");
return;
}
if (!b->readPixels(bpm, 0, 0)) {
ERRORF(reporter, "Could not read image b's pixels");
return;
}
for (auto y = 0; y < info.height(); ++y) {
for (auto x = 0; x < info.width(); ++x) {
uint32_t pixelA = *apm.addr32(x, y);
uint32_t pixelB = *bpm.addr32(x, y);
if (pixelA != pixelB) {
ERRORF(reporter, "Expected image pixels to be the same. At %d,%d 0x%08x != 0x%08x",
x, y, pixelA, pixelB);
return;
}
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(NewTextureFromPixmap, reporter, ctxInfo) {
for (auto create : {&create_image,
&create_image_565,
&create_image_ct}) {
sk_sp<SkImage> image((*create)());
if (!image) {
ERRORF(reporter, "Could not create image");
return;
}
SkPixmap pixmap;
if (!image->peekPixels(&pixmap)) {
ERRORF(reporter, "peek failed");
} else {
sk_sp<SkImage> texImage(SkImage::MakeTextureFromPixmap(ctxInfo.grContext(), pixmap,
SkBudgeted::kNo));
if (!texImage) {
ERRORF(reporter, "NewTextureFromPixmap failed.");
} else {
check_images_same(reporter, image.get(), texImage.get());
}
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DeferredTextureImage, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
sk_gpu_test::TestContext* testContext = ctxInfo.testContext();
SkAutoTUnref<GrContextThreadSafeProxy> proxy(context->threadSafeProxy());
GrContextFactory otherFactory;
ContextInfo otherContextInfo =
otherFactory.getContextInfo(GrContextFactory::kNativeGL_ContextType);
testContext->makeCurrent();
REPORTER_ASSERT(reporter, proxy);
struct {
std::function<sk_sp<SkImage> ()> fImageFactory;
std::vector<SkImage::DeferredTextureImageUsageParams> fParams;
SkFilterQuality fExpectedQuality;
int fExpectedScaleFactor;
bool fExpectation;
} testCases[] = {
{ create_image, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, true },
{ create_codec_image, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, true },
{ create_data_image, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, true },
{ create_picture_image, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, false },
{ [context] { return create_gpu_image(context); },
{{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, false },
// Create a texture image in a another GrContext.
{ [testContext, otherContextInfo] {
otherContextInfo.testContext()->makeCurrent();
sk_sp<SkImage> otherContextImage = create_gpu_image(otherContextInfo.grContext());
testContext->makeCurrent();
return otherContextImage;
}, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, false },
// Create an image that is too large to upload.
{ create_image_large, {{SkMatrix::I(), kNone_SkFilterQuality, 0}},
kNone_SkFilterQuality, 1, false },
// Create an image that is too large, but is scaled to an acceptable size.
{ create_image_large, {{SkMatrix::I(), kMedium_SkFilterQuality, 4}},
kMedium_SkFilterQuality, 16, true},
// Create an image with multiple low filter qualities, make sure we round up.
{ create_image_large, {{SkMatrix::I(), kNone_SkFilterQuality, 4},
{SkMatrix::I(), kMedium_SkFilterQuality, 4}},
kMedium_SkFilterQuality, 16, true},
// Create an image with multiple prescale levels, make sure we chose the minimum scale.
{ create_image_large, {{SkMatrix::I(), kMedium_SkFilterQuality, 5},
{SkMatrix::I(), kMedium_SkFilterQuality, 4}},
kMedium_SkFilterQuality, 16, true},
};
for (auto testCase : testCases) {
sk_sp<SkImage> image(testCase.fImageFactory());
if (!image) {
ERRORF(reporter, "Failed to create image!");
continue;
}
size_t size = image->getDeferredTextureImageData(*proxy, testCase.fParams.data(),
static_cast<int>(testCase.fParams.size()),
nullptr, nullptr);
static const char *const kFS[] = { "fail", "succeed" };
if (SkToBool(size) != testCase.fExpectation) {
ERRORF(reporter, "This image was expected to %s but did not.",
kFS[testCase.fExpectation]);
}
if (size) {
void* buffer = sk_malloc_throw(size);
void* misaligned = reinterpret_cast<void*>(reinterpret_cast<intptr_t>(buffer) + 3);
if (image->getDeferredTextureImageData(*proxy, testCase.fParams.data(),
static_cast<int>(testCase.fParams.size()),
misaligned, nullptr)) {
ERRORF(reporter, "Should fail when buffer is misaligned.");
}
if (!image->getDeferredTextureImageData(*proxy, testCase.fParams.data(),
static_cast<int>(testCase.fParams.size()),
buffer, nullptr)) {
ERRORF(reporter, "deferred image size succeeded but creation failed.");
} else {
for (auto budgeted : { SkBudgeted::kNo, SkBudgeted::kYes }) {
sk_sp<SkImage> newImage(
SkImage::MakeFromDeferredTextureImageData(context, buffer, budgeted));
REPORTER_ASSERT(reporter, newImage != nullptr);
if (newImage) {
// Scale the image in software for comparison.
SkImageInfo scaled_info = SkImageInfo::MakeN32(
image->width() / testCase.fExpectedScaleFactor,
image->height() / testCase.fExpectedScaleFactor,
image->alphaType());
SkAutoPixmapStorage scaled;
scaled.alloc(scaled_info);
image->scalePixels(scaled, testCase.fExpectedQuality);
sk_sp<SkImage> scaledImage = SkImage::MakeRasterCopy(scaled);
check_images_same(reporter, scaledImage.get(), newImage.get());
}
// The other context should not be able to create images from texture data
// created by the original context.
sk_sp<SkImage> newImage2(SkImage::MakeFromDeferredTextureImageData(
otherContextInfo.grContext(), buffer, budgeted));
REPORTER_ASSERT(reporter, !newImage2);
testContext->makeCurrent();
}
}
sk_free(buffer);
}
}
}
#endif
///////////////////////////////////////////////////////////////////////////////////////////////////
static void make_all_premul(SkBitmap* bm) {
bm->allocPixels(SkImageInfo::MakeN32(256, 256, kPremul_SkAlphaType));
for (int a = 0; a < 256; ++a) {
for (int r = 0; r < 256; ++r) {
// make all valid premul combinations
int c = SkTMin(a, r);
*bm->getAddr32(a, r) = SkPackARGB32(a, c, c, c);
}
}
}
static bool equal(const SkBitmap& a, const SkBitmap& b) {
SkASSERT(a.width() == b.width());
SkASSERT(a.height() == b.height());
for (int y = 0; y < a.height(); ++y) {
if (0 != memcmp(a.getAddr32(0, y), b.getAddr32(0, y), a.width() * sizeof(SkPMColor))) {
return false;
}
}
return true;
}
DEF_TEST(image_roundtrip_encode, reporter) {
SkBitmap bm0;
make_all_premul(&bm0);
auto img0 = SkImage::MakeFromBitmap(bm0);
sk_sp<SkData> data(img0->encode(SkImageEncoder::kPNG_Type, 100));
auto img1 = SkImage::MakeFromEncoded(data);
SkBitmap bm1;
bm1.allocPixels(SkImageInfo::MakeN32(256, 256, kPremul_SkAlphaType));
img1->readPixels(bm1.info(), bm1.getPixels(), bm1.rowBytes(), 0, 0);
REPORTER_ASSERT(reporter, equal(bm0, bm1));
}
DEF_TEST(image_roundtrip_premul, reporter) {
SkBitmap bm0;
make_all_premul(&bm0);
SkBitmap bm1;
bm1.allocPixels(SkImageInfo::MakeN32(256, 256, kUnpremul_SkAlphaType));
bm0.readPixels(bm1.info(), bm1.getPixels(), bm1.rowBytes(), 0, 0);
SkBitmap bm2;
bm2.allocPixels(SkImageInfo::MakeN32(256, 256, kPremul_SkAlphaType));
bm1.readPixels(bm2.info(), bm2.getPixels(), bm2.rowBytes(), 0, 0);
REPORTER_ASSERT(reporter, equal(bm0, bm2));
}
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