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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrRectanizer_pow2.h"
bool GrRectanizerPow2::addRect(int width, int height, SkIPoint16* loc) {
if ((unsigned)width > (unsigned)this->width() ||
(unsigned)height > (unsigned)this->height()) {
return false;
}
int32_t area = width * height; // computed here since height will be modified
height = GrNextPow2(height);
if (height < kMIN_HEIGHT_POW2) {
height = kMIN_HEIGHT_POW2;
}
Row* row = &fRows[HeightToRowIndex(height)];
SkASSERT(row->fRowHeight == 0 || row->fRowHeight == height);
if (0 == row->fRowHeight) {
if (!this->canAddStrip(height)) {
return false;
}
this->initRow(row, height);
} else {
if (!row->canAddWidth(width, this->width())) {
if (!this->canAddStrip(height)) {
return false;
}
// that row is now "full", so retarget our Row record for
// another one
this->initRow(row, height);
}
}
SkASSERT(row->fRowHeight == height);
SkASSERT(row->canAddWidth(width, this->width()));
*loc = row->fLoc;
row->fLoc.fX += width;
SkASSERT(row->fLoc.fX <= this->width());
SkASSERT(row->fLoc.fY <= this->height());
SkASSERT(fNextStripY <= this->height());
fAreaSoFar += area;
return true;
}
///////////////////////////////////////////////////////////////////////////////
// factory is now in GrRectanizer_skyline.cpp
//GrRectanizer* GrRectanizer::Factory(int width, int height) {
// return new GrRectanizerPow2 (width, height);
//}
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