skia2/include/gpu/GrRect.h
robertphillips 952841bf41 Begin atlasing
This CL makes it possible for pulled-forward-layers to be atlased. It currently has a couple glaring limitations (which is why it is disabled):

1) the atlased layers cannot be purged nor aged out
2) the texture backing the atlas is not pulled from (or returned to) the resource cache

#1 is on hold until we have a recycling rectanizer

A separate major limitation (the non-atlased layers aren't cached) is blocked until we can transmute entries in the resource cache from scratch to non-scratch while potentially preserving their contents.

Committed: https://skia.googlesource.com/skia/+/55e61f0ef4e5c8c34ac107deaadc9b4ffef3111b

R=bsalomon@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/354533004
2014-06-30 08:26:50 -07:00

58 lines
1.4 KiB
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;
}
static GrIRect16 SK_WARN_UNUSED_RESULT MakeWH(int16_t w, int16_t h) {
GrIRect16 r;
r.set(0, 0, w, h);
return r;
}
static GrIRect16 SK_WARN_UNUSED_RESULT MakeXYWH(int16_t x, int16_t y, int16_t w, int16_t h) {
GrIRect16 r;
r.set(x, y, x + w, y + h);
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(int16_t left, int16_t top, int16_t right, int16_t bottom) {
fLeft = left;
fTop = top;
fRight = right;
fBottom = bottom;
}
void set(const SkIRect& r) {
fLeft = SkToS16(r.fLeft);
fTop = SkToS16(r.fTop);
fRight = SkToS16(r.fRight);
fBottom = SkToS16(r.fBottom);
}
};
#endif