blob: fca9a8cb8e4a9282426fcd086eaaac02d27c96c1 [file] [log] [blame]
* Copyright 2015 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef GrDistanceFieldAdjustTable_DEFINED
#define GrDistanceFieldAdjustTable_DEFINED
#include "SkRefCnt.h"
#include "SkScalar.h"
// Distance field text needs this table to compute a value for use in the fragment shader.
// Because the GrTextContext can go out of scope before the final flush, this needs to be
// refcnted and malloced
struct GrDistanceFieldAdjustTable : public SkNVRefCnt<GrDistanceFieldAdjustTable> {
GrDistanceFieldAdjustTable() { this->buildDistanceAdjustTables(); }
~GrDistanceFieldAdjustTable() {
delete[] fTable;
delete[] fGammaCorrectTable;
const SkScalar& getAdjustment(int i, bool useGammaCorrectTable) const {
return useGammaCorrectTable ? fGammaCorrectTable[i] : fTable[i];
void buildDistanceAdjustTables();
SkScalar* fTable;
SkScalar* fGammaCorrectTable;