GrPathUtils.cpp File Reference

#include "src/gpu/ganesh/geometry/GrPathUtils.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkRect.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkFloatingPoint.h"
#include "src/core/SkGeometry.h"
#include "src/core/SkPathEnums.h"
#include "src/core/SkPointPriv.h"
#include "src/gpu/tessellate/WangsFormula.h"
#include <algorithm>

Go to the source code of this file.

Functions
static float	tolerance_to_wangs_precision (float srcTol)
uint32_t	max_bezier_vertices (uint32_t chopCount)

Variables
static const SkScalar	kMinCurveTol = 0.0001f

Function Documentation

max_bezier_vertices()

uint32_t max_bezier_vertices

(

uint32_t

chopCount

)

Definition at line 35 of file GrPathUtils.cpp.

                                                 {
    static constexpr uint32_t kMaxChopsPerCurve = 10;
    static_assert((1 << kMaxChopsPerCurve) == GrPathUtils::kMaxPointsPerCurve);
    return 1 << std::min(chopCount, kMaxChopsPerCurve);
}

tolerance_to_wangs_precision()

static float tolerance_to_wangs_precision ( float  srcTol )

static

Definition at line 25 of file GrPathUtils.cpp.

                                                        {
    // You should have called scaleToleranceToSrc, which guarantees this
    SkASSERT(srcTol >= kMinCurveTol);
 
    // The GrPathUtil API defines tolerance as the max distance the linear segment can be from
    // the real curve. Wang's formula guarantees the linear segments will be within 1/precision
    // of the true curve, so precision = 1/srcTol
    return 1.f / srcTol;
}

Variable Documentation

kMinCurveTol

const SkScalar kMinCurveTol = 0.0001f

static

Definition at line 23 of file GrPathUtils.cpp.