SkLinearGradient.cpp File Reference

#include "src/shaders/gradients/SkLinearGradient.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/effects/SkGradientShader.h"
#include "include/private/base/SkFloatingPoint.h"
#include "include/private/base/SkTArray.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkWriteBuffer.h"
#include "src/shaders/SkLocalMatrixShader.h"
#include "src/shaders/SkShaderBase.h"
#include <cstdint>
#include <utility>

Go to the source code of this file.

Functions
static SkMatrix	pts_to_unit_matrix (const SkPoint pts[2])
void	SkRegisterLinearGradientShaderFlattenable ()

Function Documentation

pts_to_unit_matrix()

static SkMatrix pts_to_unit_matrix ( const SkPoint  pts[2] )

static

Definition at line 31 of file SkLinearGradient.cpp.

                                                         {
    SkVector    vec = pts[1] - pts[0];
    SkScalar    mag = vec.length();
    SkScalar    inv = mag ? SkScalarInvert(mag) : 0;
 
    vec.scale(inv);
    SkMatrix matrix;
    matrix.setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY);
    matrix.postTranslate(-pts[0].fX, -pts[0].fY);
    matrix.postScale(inv, inv);
    return matrix;
}

SkRegisterLinearGradientShaderFlattenable()

void SkRegisterLinearGradientShaderFlattenable

(

)

Definition at line 143 of file SkLinearGradient.cpp.

                                                 {
    SK_REGISTER_FLATTENABLE(SkLinearGradient);
}