| /* |
| * 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/ganesh/GrDataUtils.h" |
| #include "tests/Test.h" |
| |
| namespace skgpu { class SurfaceContext; } |
| class GrSurfaceProxy; |
| typedef uint32_t GrColor; |
| |
| // Ensure that reading back from 'srcContext' as RGBA 8888 matches 'expectedPixelValues |
| void TestReadPixels(skiatest::Reporter*, GrDirectContext*, skgpu::SurfaceContext*, |
| 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*, skgpu::SurfaceContext*, |
| 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); |
| |
| // Makes either a SurfaceContext, SurfaceFillContext, or a SurfaceDrawContext, depending on |
| // GrRenderable and the GrImageInfo. |
| // The texture format is the default for the provided color type. |
| std::unique_ptr<skgpu::SurfaceContext> CreateSurfaceContext( |
| GrRecordingContext*, |
| const GrImageInfo&, |
| SkBackingFit = SkBackingFit::kExact, |
| GrSurfaceOrigin = kTopLeft_GrSurfaceOrigin, |
| GrRenderable = GrRenderable::kNo, |
| int sampleCount = 1, |
| GrMipmapped = GrMipmapped::kNo, |
| GrProtected = GrProtected::kNo, |
| SkBudgeted = SkBudgeted::kYes); |
| |
| #endif |