SkSLCross.cpp File Reference

#include "include/core/SkAlphaType.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkColorType.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkSurfaceProps.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GrDirectContext.h"
#include "include/private/SkColorData.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/core/SkSLTypeShared.h"
#include "src/gpu/SkBackingFit.h"
#include "src/gpu/ganesh/GrColor.h"
#include "src/gpu/ganesh/GrFragmentProcessor.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPaint.h"
#include "src/gpu/ganesh/GrPixmap.h"
#include "src/gpu/ganesh/SurfaceDrawContext.h"
#include "src/gpu/ganesh/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/ganesh/glsl/GrGLSLProgramDataManager.h"
#include "src/gpu/ganesh/glsl/GrGLSLUniformHandler.h"
#include "tests/CtsEnforcement.h"
#include "tests/Test.h"
#include <memory>
#include <utility>

Go to the source code of this file.

Namespaces
namespace	skgpu

Functions
static void	run_test (skiatest::Reporter *, GrDirectContext *, skgpu::ganesh::SurfaceDrawContext *, SkVector a, SkVector b, float expectedCrossProduct)
	DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS (SkSLCross, reporter, ctxInfo, CtsEnforcement::kApiLevel_T)

Function Documentation

DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS()

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

Definition at line 51 of file SkSLCross.cpp.

                                                                                                {
    GrDirectContext* dContext = ctxInfo.directContext();
    auto sdc = skgpu::ganesh::SurfaceDrawContext::Make(dContext,
                                                       GrColorType::kRGBA_8888,
                                                       nullptr,
                                                       SkBackingFit::kExact,
                                                       {1, 1},
                                                       SkSurfaceProps(),
                                                       /*label=*/"SkSLCross_Test");
    if (!sdc) {
        ERRORF(reporter, "could not create render target context.");
        return;
    }
    run_test(reporter, dContext, sdc.get(), {3,4}, {5,6}, -2);  // Negative.
    run_test(reporter, dContext, sdc.get(), {3,4}, {-5,-6}, 2);  // Positive.
    run_test(reporter, dContext, sdc.get(), {0, 2.287f}, {0, -7.741f}, 0);  // Zero.
    run_test(reporter, dContext, sdc.get(), {62.17f, 0}, {-43.49f, 0}, 0);  // Zero.
}

run_test()

static void run_test ( skiatest::Reporter *  reporter, GrDirectContext *  directContext, skgpu::ganesh::SurfaceDrawContext *  sdc, SkVector  a, SkVector  b, float  expectedCrossProduct  )

static

Definition at line 128 of file SkSLCross.cpp.

                                                 {
    SkASSERT(sdc->width() == 1);
    SkASSERT(sdc->height() == 1);
 
    sdc->clear(SkPMColor4f::FromBytes_RGBA(0xbaaaaaad));
 
    GrPaint crossPaint;
    crossPaint.setColor4f(SK_PMColor4fWHITE);
    crossPaint.setPorterDuffXPFactory(SkBlendMode::kSrcOver);
    crossPaint.setColorFragmentProcessor(std::make_unique<VisualizeCrossProductSignFP>(a, b));
    sdc->drawRect(/*clip=*/nullptr, std::move(crossPaint), GrAA::kNo, SkMatrix::I(),
                  SkRect::MakeWH(1,1));
 
    GrColor result;
    GrPixmap resultPM(SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kPremul_SkAlphaType),
                      &result,
                      sizeof(GrColor));
    sdc->readPixels(directContext, resultPM, {0, 0});
 
    SkASSERT(expectedCrossProduct == a.cross(b));
    if (expectedCrossProduct > 0) {
        REPORTER_ASSERT(reporter, result == GrColorPackRGBA(0, 255, 0, 255));  // Green.
    } else if (expectedCrossProduct < 0) {
        REPORTER_ASSERT(reporter, result == GrColorPackRGBA(255, 0, 0, 255));  // Red.
    } else {
        REPORTER_ASSERT(reporter, result == GrColorPackRGBA(0, 0, 0, 255));  // Black.
    }
}