blob: 1a351be0d6f7615d894257b5e43f26ef1e0ee05a [file] [log] [blame]
/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef skgpu_Rectanizer_DEFINED
#define skgpu_Rectanizer_DEFINED
#include "src/core/SkIPoint16.h"
namespace skgpu {
class Rectanizer {
public:
Rectanizer(int width, int height) : fWidth(width), fHeight(height) {
SkASSERT(width >= 0);
SkASSERT(height >= 0);
}
virtual ~Rectanizer() {}
virtual void reset() = 0;
int width() const { return fWidth; }
int height() const { return fHeight; }
// Attempt to add a rect. Return true on success; false on failure. If
// successful the position in the atlas is returned in 'loc'.
virtual bool addRect(int width, int height, SkIPoint16* loc) = 0;
virtual float percentFull() const = 0;
bool addPaddedRect(int width, int height, int16_t padding, SkIPoint16* loc) {
if (this->addRect(width + 2*padding, height + 2*padding, loc)) {
loc->fX += padding;
loc->fY += padding;
return true;
}
return false;
}
/**
* Our factory, which returns the subclass du jour
*/
static Rectanizer* Factory(int width, int height);
private:
const int fWidth;
const int fHeight;
};
} // End of namespace skgpu
#endif