/* * Copyright 2017 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef TestUtils_DEFINED #define TestUtils_DEFINED #include "include/core/SkBitmap.h" #include "src/gpu/GrDataUtils.h" #include "tests/Test.h" class GrSurfaceContext; class GrSurfaceProxy; typedef uint32_t GrColor; // Ensure that reading back from 'srcContext' as RGBA 8888 matches 'expectedPixelValues void TestReadPixels(skiatest::Reporter*, GrDirectContext*, GrSurfaceContext* srcContext, uint32_t expectedPixelValues[], const char* testName); // See if trying to write RGBA 8888 pixels to 'dstContext' matches matches the // expectation ('expectedToWork') void TestWritePixels(skiatest::Reporter*, GrDirectContext*, GrSurfaceContext* srcContext, bool expectedToWork, const char* testName); // Ensure that the pixels can be copied from 'proxy' viewed as colorType, to an RGBA 8888 // destination (both texture-backed and rendertarget-backed). void TestCopyFromSurface(skiatest::Reporter*, GrDirectContext*, sk_sp<GrSurfaceProxy> proxy, GrSurfaceOrigin origin, GrColorType colorType, uint32_t expectedPixelValues[], const char* testName); // Encodes the bitmap into a data:/image/png;base64,... url suitable to view in a browser after // printing to a log. If false is returned, dst holds an error message instead of a URI. bool BipmapToBase64DataURI(const SkBitmap& bitmap, SkString* dst); /** Used by compare_pixels. */ using ComparePixmapsErrorReporter = void(int x, int y, const float diffs[4]); /** * Compares pixels pointed to by 'a' with 'infoA' and rowBytesA to pixels pointed to by 'b' with * 'infoB' and 'rowBytesB'. * * If the pixmaps have different dimensions error is called with negative coordinate values and * zero diffs and no comparisons are made. * * Before comparison pixels are converted to a common color type, alpha type, and color space. * The color type is always 32 bit float. The alpha type is premul if one of the pixmaps is * premul and the other is unpremul. The color space is linear sRGB if the pixmaps have * different colorspaces, otherwise their common color space is used. * * 'tolRGBA' expresses the allowed difference between pixels in the comparison space per channel. If * pixel components differ more than by 'tolRGBA' in absolute value in any channel then 'error' is * called with the coordinate and difference in the comparison space (B - A). * * The function quits after a single error is reported and returns false if 'error' was called and * true otherwise. */ bool ComparePixels(const GrCPixmap& a, const GrCPixmap& b, const float tolRGBA[4], std::function<ComparePixmapsErrorReporter>& error); /** * Convenience version that checks that 'pixmap' is a solid field of 'col' */ bool CheckSolidPixels(const SkColor4f& col, const SkPixmap& pixmap, const float tolRGBA[4], std::function<ComparePixmapsErrorReporter>& error); /** * Checks the ref cnt on a proxy and its backing store. This is only valid if the proxy and the * resource are both used on a single thread. */ void CheckSingleThreadedProxyRefs(skiatest::Reporter* reporter, GrSurfaceProxy* proxy, int32_t expectedProxyRefs, int32_t expectedBackingRefs); #endif