/* * 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 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 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 dstProxy = GrSurfaceProxy::Copy(context, proxy, GrMipMapped::kNo, SkBackingFit::kExact, SkBudgeted::kYes); SkASSERT(dstProxy); sk_sp 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 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(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& 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 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 floatA(new char[floatRowBytes * infoA.height()]); std::unique_ptr 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(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& error) { return compare_pixels(a.info(), static_cast(a.addr()), a.rowBytes(), b.info(), static_cast(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); } } }