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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.
#ifndef TestUtils_DEFINED
#define TestUtils_DEFINED
#include "include/core/SkColor.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/GrTypes.h"
#include "src/gpu/SkBackingFit.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPixmap.h"
#include <cstdint>
#include <functional>
#include <memory>
class GrDirectContext;
class GrRecordingContext;
class GrSurfaceProxy;
class SkPixmap;
enum class GrColorType;
namespace skiatest { class Reporter; }
namespace skgpu::ganesh {
class SurfaceContext;
typedef uint32_t GrColor;
// Ensure that reading back from 'srcContext' as RGBA 8888 matches 'expectedPixelValues
void TestReadPixels(skiatest::Reporter*,
uint32_t expectedPixelValues[],
const char* testName);
// See if trying to write RGBA 8888 pixels to 'dstContext' matches the
// expectation ('expectedToWork')
void TestWritePixels(skiatest::Reporter*,
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*,
sk_sp<GrSurfaceProxy> proxy,
GrSurfaceOrigin origin,
GrColorType colorType,
uint32_t expectedPixelValues[],
const char* testName);
/** Used by compare_pixels. */
using ComparePixmapsErrorReporter = void(int x, int y, const float diffs[4]);
* Compares pixels pointed to by 'a' to pixels pointed to by 'b'.
* 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::ganesh::SurfaceContext> CreateSurfaceContext(
const GrImageInfo&,
SkBackingFit = SkBackingFit::kExact,
GrSurfaceOrigin = kTopLeft_GrSurfaceOrigin,
GrRenderable = GrRenderable::kNo,
int sampleCount = 1,
skgpu::Mipmapped = skgpu::Mipmapped::kNo,
GrProtected = GrProtected::kNo,
skgpu::Budgeted = skgpu::Budgeted::kYes);