#include "include/core/SkAlphaType.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkString.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/GrDirectContext.h"
#include "include/gpu/GrTypes.h"
#include "include/private/base/SkTDArray.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/base/SkHalf.h"
#include "src/gpu/ganesh/GrDirectContextPriv.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPixmap.h"
#include "src/gpu/ganesh/GrSurfaceProxyView.h"
#include "src/gpu/ganesh/SurfaceContext.h"
#include "tests/CtsEnforcement.h"
#include "tests/Test.h"
#include "tools/gpu/ProxyUtils.h"
#include <cstring>
#include <initializer_list>
#include <memory>
#include <utility>

Functions
template<typename T >
void	runFPTest (skiatest::Reporter reporter, GrDirectContext dContext, T min, T max, T epsilon, T maxInt, int arraySize, GrColorType colorType)

	DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS (HalfFloatAlphaTextureTest, reporter, ctxInfo, CtsEnforcement::kApiLevel_T)

	DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS (HalfFloatRGBATextureTest, reporter, ctxInfo, CtsEnforcement::kApiLevel_T)

Variables
static const int	DEV_W = 100

static const int	DEV_H = 100

static const int	HALF_ALPHA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 1

static const SkHalf	kMaxIntegerRepresentableInHalfFloatingPoint = 0x6800

static const int	HALF_RGBA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 4

Function Documentation

◆ DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS() [1/2]

DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS	(	HalfFloatAlphaTextureTest	,
		reporter	,
		ctxInfo	,
		CtsEnforcement::kApiLevel_T
	)

Definition at line 90 of file FloatingPointTextureTest.cpp.

                                                                  {
    auto direct = ctxInfo.directContext();
 
    runFPTest<SkHalf>(reporter, direct, SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
                      kMaxIntegerRepresentableInHalfFloatingPoint, HALF_ALPHA_CONTROL_ARRAY_SIZE,
                      GrColorType::kAlpha_F16);
}

◆ DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS() [2/2]

DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS	(	HalfFloatRGBATextureTest	,
		reporter	,
		ctxInfo	,
		CtsEnforcement::kApiLevel_T
	)

Definition at line 103 of file FloatingPointTextureTest.cpp.

                                                                  {
    auto direct = ctxInfo.directContext();
 
    runFPTest<SkHalf>(reporter, direct, SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
                      kMaxIntegerRepresentableInHalfFloatingPoint, HALF_RGBA_CONTROL_ARRAY_SIZE,
                      GrColorType::kRGBA_F16);
}

◆ runFPTest()

template<typename T >

void runFPTest	(	skiatest::Reporter *	reporter,
		GrDirectContext *	dContext,
		T	min,
		T	max,
		T	epsilon,
		T	maxInt,
		int	arraySize,
		GrColorType	colorType
	)

Definition at line 44 of file FloatingPointTextureTest.cpp.

                                                     {
    if (0 != arraySize % 4) {
        REPORT_FAILURE(reporter, "(0 != arraySize % 4)",
                       SkString("arraySize must be divisible by 4."));
        return;
    }
 
    SkTDArray<T> controlPixelData, readBuffer;
    controlPixelData.resize(arraySize);
    readBuffer.resize(arraySize);
 
    for (int i = 0; i < arraySize; i += 4) {
        controlPixelData[i + 0] = min;
        controlPixelData[i + 1] = max;
        controlPixelData[i + 2] = epsilon;
        controlPixelData[i + 3] = maxInt;
    }
 
    for (auto origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
        GrImageInfo info(colorType, kPremul_SkAlphaType, nullptr, {DEV_W, DEV_H});
        GrCPixmap controlPixmap(info, controlPixelData.begin(), info.minRowBytes());
        auto fpView = sk_gpu_test::MakeTextureProxyViewFromData(dContext,
                                                                GrRenderable::kYes,
                                                                origin,
                                                                controlPixmap);
        // Floating point textures are NOT supported everywhere
        if (!fpView) {
            continue;
        }
 
        auto sc = dContext->priv().makeSC(std::move(fpView), info.colorInfo());
        REPORTER_ASSERT(reporter, sc);
 
        GrPixmap readPixmap(info, readBuffer.begin(), info.minRowBytes());
        bool result = sc->readPixels(dContext, readPixmap, {0, 0});
        REPORTER_ASSERT(reporter, result);
        REPORTER_ASSERT(reporter,
            !memcmp(readBuffer.begin(), controlPixelData.begin(), readBuffer.size_bytes()));
    }
}