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- /*
- * 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 "tests/TestUtils.h"
- #include "include/encode/SkPngEncoder.h"
- #include "include/utils/SkBase64.h"
- #include "src/core/SkUtils.h"
- #include "src/gpu/GrContextPriv.h"
- #include "src/gpu/GrDrawingManager.h"
- #include "src/gpu/GrGpu.h"
- #include "src/gpu/GrSurfaceContext.h"
- #include "src/gpu/GrSurfaceProxy.h"
- #include "src/gpu/GrTextureContext.h"
- #include "src/gpu/GrTextureProxy.h"
- #include "src/gpu/SkGr.h"
- void test_read_pixels(skiatest::Reporter* reporter,
- GrSurfaceContext* srcContext, uint32_t expectedPixelValues[],
- const char* testName) {
- int pixelCnt = srcContext->width() * srcContext->height();
- SkAutoTMalloc<uint32_t> pixels(pixelCnt);
- memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt);
- SkImageInfo ii = SkImageInfo::Make(srcContext->width(), srcContext->height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType);
- bool read = srcContext->readPixels(ii, pixels.get(), 0, {0, 0});
- if (!read) {
- ERRORF(reporter, "%s: Error reading from texture.", testName);
- }
- for (int i = 0; i < pixelCnt; ++i) {
- if (pixels.get()[i] != expectedPixelValues[i]) {
- ERRORF(reporter, "%s: Error, pixel value %d should be 0x%08x, got 0x%08x.",
- testName, i, expectedPixelValues[i], pixels.get()[i]);
- break;
- }
- }
- }
- void test_write_pixels(skiatest::Reporter* reporter,
- GrSurfaceContext* dstContext, bool expectedToWork,
- const char* testName) {
- int pixelCnt = dstContext->width() * dstContext->height();
- SkAutoTMalloc<uint32_t> pixels(pixelCnt);
- for (int y = 0; y < dstContext->width(); ++y) {
- for (int x = 0; x < dstContext->height(); ++x) {
- pixels.get()[y * dstContext->width() + x] =
- SkColorToPremulGrColor(SkColorSetARGB(2*y, x, y, x + y));
- }
- }
- SkImageInfo ii = SkImageInfo::Make(dstContext->width(), dstContext->height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType);
- bool write = dstContext->writePixels(ii, pixels.get(), 0, {0, 0});
- if (!write) {
- if (expectedToWork) {
- ERRORF(reporter, "%s: Error writing to texture.", testName);
- }
- return;
- }
- if (write && !expectedToWork) {
- ERRORF(reporter, "%s: writePixels succeeded when it wasn't supposed to.", testName);
- return;
- }
- test_read_pixels(reporter, dstContext, pixels.get(), testName);
- }
- void test_copy_from_surface(skiatest::Reporter* reporter, GrContext* context, GrSurfaceProxy* proxy,
- GrColorType colorType, uint32_t expectedPixelValues[],
- const char* testName) {
- sk_sp<GrTextureProxy> dstProxy = GrSurfaceProxy::Copy(context, proxy, GrMipMapped::kNo,
- SkBackingFit::kExact, SkBudgeted::kYes);
- SkASSERT(dstProxy);
- sk_sp<GrSurfaceContext> dstContext = context->priv().makeWrappedSurfaceContext(
- std::move(dstProxy), colorType, kPremul_SkAlphaType);
- SkASSERT(dstContext.get());
- test_read_pixels(reporter, dstContext.get(), expectedPixelValues, testName);
- }
- void fill_pixel_data(int width, int height, GrColor* data) {
- for (int j = 0; j < height; ++j) {
- for (int i = 0; i < width; ++i) {
- unsigned int red = (unsigned int)(256.f * (i / (float)width));
- unsigned int green = (unsigned int)(256.f * (j / (float)height));
- data[i + j * width] = GrColorPackRGBA(red - (red >> 8), green - (green >> 8),
- 0xff, 0xff);
- }
- }
- }
- bool create_backend_texture(GrContext* context, GrBackendTexture* backendTex,
- const SkImageInfo& ii, const SkColor4f& color,
- GrMipMapped mipMapped, GrRenderable renderable) {
- // TODO: use the color-init version of createBackendTexture once Metal supports it.
- #if 0
- *backendTex = context->createBackendTexture(ii.width(), ii.height(), ii.colorType(),
- color, mipMapped, renderable);
- #else
- SkBitmap bm;
- bm.allocPixels(ii);
- sk_memset32(bm.getAddr32(0, 0), color.toSkColor(), ii.width() * ii.height());
- SkASSERT(GrMipMapped::kNo == mipMapped);
- *backendTex = context->priv().createBackendTexture(&bm.pixmap(), 1, renderable,
- GrProtected::kNo);
- #endif
- return backendTex->isValid();
- }
- void delete_backend_texture(GrContext* context, const GrBackendTexture& backendTex) {
- GrFlushInfo flushInfo;
- flushInfo.fFlags = kSyncCpu_GrFlushFlag;
- context->flush(flushInfo);
- context->deleteBackendTexture(backendTex);
- }
- bool does_full_buffer_contain_correct_color(const GrColor* srcBuffer,
- const GrColor* dstBuffer,
- int width,
- int height) {
- const GrColor* srcPtr = srcBuffer;
- const GrColor* dstPtr = dstBuffer;
- for (int j = 0; j < height; ++j) {
- for (int i = 0; i < width; ++i) {
- if (srcPtr[i] != dstPtr[i]) {
- return false;
- }
- }
- srcPtr += width;
- dstPtr += width;
- }
- return true;
- }
- bool bitmap_to_base64_data_uri(const SkBitmap& bitmap, SkString* dst) {
- SkPixmap pm;
- if (!bitmap.peekPixels(&pm)) {
- dst->set("peekPixels failed");
- return false;
- }
- // We're going to embed this PNG in a data URI, so make it as small as possible
- SkPngEncoder::Options options;
- options.fFilterFlags = SkPngEncoder::FilterFlag::kAll;
- options.fZLibLevel = 9;
- SkDynamicMemoryWStream wStream;
- if (!SkPngEncoder::Encode(&wStream, pm, options)) {
- dst->set("SkPngEncoder::Encode failed");
- return false;
- }
- sk_sp<SkData> pngData = wStream.detachAsData();
- size_t len = SkBase64::Encode(pngData->data(), pngData->size(), nullptr);
- // The PNG can be almost arbitrarily large. We don't want to fill our logs with enormous URLs.
- // Infra says these can be pretty big, as long as we're only outputting them on failure.
- static const size_t kMaxBase64Length = 1024 * 1024;
- if (len > kMaxBase64Length) {
- dst->printf("Encoded image too large (%u bytes)", static_cast<uint32_t>(len));
- return false;
- }
- dst->resize(len);
- SkBase64::Encode(pngData->data(), pngData->size(), dst->writable_str());
- dst->prepend("data:image/png;base64,");
- return true;
- }
- bool compare_pixels(const GrPixelInfo& infoA, const char* a, size_t rowBytesA,
- const GrPixelInfo& infoB, const char* b, size_t rowBytesB,
- const float tolRGBA[4], std::function<ComparePixmapsErrorReporter>& error) {
- if (infoA.width() != infoB.width() || infoA.height() != infoB.height()) {
- static constexpr float kDummyDiffs[4] = {};
- error(-1, -1, kDummyDiffs);
- return false;
- }
- SkAlphaType floatAlphaType = infoA.alphaType();
- // If one is premul and the other is unpremul we do the comparison in premul space.
- if ((infoA.alphaType() == kPremul_SkAlphaType ||
- infoB.alphaType() == kPremul_SkAlphaType) &&
- (infoA.alphaType() == kUnpremul_SkAlphaType ||
- infoB.alphaType() == kUnpremul_SkAlphaType)) {
- floatAlphaType = kPremul_SkAlphaType;
- }
- sk_sp<SkColorSpace> floatCS;
- if (SkColorSpace::Equals(infoA.colorSpace(), infoB.colorSpace())) {
- floatCS = infoA.refColorSpace();
- } else {
- floatCS = SkColorSpace::MakeSRGBLinear();
- }
- GrPixelInfo floatInfo(GrColorType::kRGBA_F32, floatAlphaType, std::move(floatCS),
- infoA.width(), infoA.height());
- size_t floatBpp = GrColorTypeBytesPerPixel(GrColorType::kRGBA_F32);
- size_t floatRowBytes = floatBpp * infoA.width();
- std::unique_ptr<char[]> floatA(new char[floatRowBytes * infoA.height()]);
- std::unique_ptr<char[]> floatB(new char[floatRowBytes * infoA.height()]);
- SkAssertResult(GrConvertPixels(floatInfo, floatA.get(), floatRowBytes, infoA, a, rowBytesA));
- SkAssertResult(GrConvertPixels(floatInfo, floatB.get(), floatRowBytes, infoB, b, rowBytesB));
- auto at = [floatBpp, floatRowBytes](const char* floatBuffer, int x, int y) {
- return reinterpret_cast<const float*>(floatBuffer + y * floatRowBytes + x * floatBpp);
- };
- for (int y = 0; y < infoA.height(); ++y) {
- for (int x = 0; x < infoA.width(); ++x) {
- const float* rgbaA = at(floatA.get(), x, y);
- const float* rgbaB = at(floatB.get(), x, y);
- float diffs[4];
- bool bad = false;
- for (int i = 0; i < 4; ++i) {
- diffs[i] = rgbaB[i] - rgbaA[i];
- if (std::abs(diffs[i]) > std::abs(tolRGBA[i])) {
- bad = true;
- }
- }
- if (bad) {
- error(x, y, diffs);
- return false;
- }
- }
- }
- return true;
- }
- bool compare_pixels(const SkPixmap& a, const SkPixmap& b, const float tolRGBA[4],
- std::function<ComparePixmapsErrorReporter>& error) {
- return compare_pixels(a.info(), static_cast<const char*>(a.addr()), a.rowBytes(),
- b.info(), static_cast<const char*>(b.addr()), b.rowBytes(),
- tolRGBA, error);
- }
- #include "src/utils/SkCharToGlyphCache.h"
- static SkGlyphID hash_to_glyph(uint32_t value) {
- return SkToU16(((value >> 16) ^ value) & 0xFFFF);
- }
- namespace {
- class UnicharGen {
- SkUnichar fU;
- const int fStep;
- public:
- UnicharGen(int step) : fU(0), fStep(step) {}
- SkUnichar next() {
- fU += fStep;
- return fU;
- }
- };
- }
- DEF_TEST(chartoglyph_cache, reporter) {
- SkCharToGlyphCache cache;
- const int step = 3;
- UnicharGen gen(step);
- for (int i = 0; i < 500; ++i) {
- SkUnichar c = gen.next();
- SkGlyphID glyph = hash_to_glyph(c);
- int index = cache.findGlyphIndex(c);
- if (index >= 0) {
- index = cache.findGlyphIndex(c);
- }
- REPORTER_ASSERT(reporter, index < 0);
- cache.insertCharAndGlyph(~index, c, glyph);
- UnicharGen gen2(step);
- for (int j = 0; j <= i; ++j) {
- c = gen2.next();
- glyph = hash_to_glyph(c);
- index = cache.findGlyphIndex(c);
- if ((unsigned)index != glyph) {
- index = cache.findGlyphIndex(c);
- }
- REPORTER_ASSERT(reporter, (unsigned)index == glyph);
- }
- }
- }
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