skia2/include/gpu/GrRect.h
commit-bot@chromium.org 2f569980c9 Add MakeEmpty to GrIRect16
The GrLayerCache will use this capability.

R=jvanverth@google.com, reed@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/232563007

git-svn-id: http://skia.googlecode.com/svn/trunk@14136 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-04-10 18:36:19 +00:00

39 lines
910 B
C

/*
* 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 GrRect_DEFINED
#define GrRect_DEFINED
#include "SkTypes.h"
#include "SkRect.h"
struct GrIRect16 {
int16_t fLeft, fTop, fRight, fBottom;
static GrIRect16 SK_WARN_UNUSED_RESULT MakeEmpty() {
GrIRect16 r;
r.setEmpty();
return r;
}
int width() const { return fRight - fLeft; }
int height() const { return fBottom - fTop; }
int area() const { return this->width() * this->height(); }
bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; }
void setEmpty() { memset(this, 0, sizeof(*this)); }
void set(const SkIRect& r) {
fLeft = SkToS16(r.fLeft);
fTop = SkToS16(r.fTop);
fRight = SkToS16(r.fRight);
fBottom = SkToS16(r.fBottom);
}
};
#endif