skia2/src/core/SkScan.cpp
reed@google.com 045e62d715 enable soft clipping (yikes)
git-svn-id: http://skia.googlecode.com/svn/trunk@2515 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-10-24 12:19:46 +00:00

119 lines
2.9 KiB
C++

/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkScan.h"
#include "SkBlitter.h"
#include "SkRasterClip.h"
static inline void blitrect(SkBlitter* blitter, const SkIRect& r) {
blitter->blitRect(r.fLeft, r.fTop, r.width(), r.height());
}
void SkScan::FillIRect(const SkIRect& r, const SkRegion* clip,
SkBlitter* blitter) {
if (!r.isEmpty()) {
if (clip) {
if (clip->isRect()) {
const SkIRect& clipBounds = clip->getBounds();
if (clipBounds.contains(r)) {
blitrect(blitter, r);
} else {
SkIRect rr = r;
if (rr.intersect(clipBounds)) {
blitrect(blitter, rr);
}
}
} else {
SkRegion::Cliperator cliper(*clip, r);
const SkIRect& rr = cliper.rect();
while (!cliper.done()) {
blitrect(blitter, rr);
cliper.next();
}
}
} else {
blitrect(blitter, r);
}
}
}
void SkScan::FillXRect(const SkXRect& xr, const SkRegion* clip,
SkBlitter* blitter) {
SkIRect r;
XRect_round(xr, &r);
SkScan::FillIRect(r, clip, blitter);
}
#ifdef SK_SCALAR_IS_FLOAT
void SkScan::FillRect(const SkRect& r, const SkRegion* clip,
SkBlitter* blitter) {
SkIRect ir;
r.round(&ir);
SkScan::FillIRect(ir, clip, blitter);
}
#endif
///////////////////////////////////////////////////////////////////////////////
void SkScan::FillIRect(const SkIRect& r, const SkRasterClip& clip,
SkBlitter* blitter) {
if (clip.isEmpty() || r.isEmpty()) {
return;
}
if (clip.isBW()) {
FillIRect(r, &clip.bwRgn(), blitter);
return;
}
SkAAClipBlitterWrapper wrapper(clip, blitter);
FillIRect(r, &wrapper.getRgn(), wrapper.getBlitter());
}
void SkScan::FillXRect(const SkXRect& xr, const SkRasterClip& clip,
SkBlitter* blitter) {
if (clip.isEmpty() || xr.isEmpty()) {
return;
}
if (clip.isBW()) {
FillXRect(xr, &clip.bwRgn(), blitter);
return;
}
SkAAClipBlitterWrapper wrapper(clip, blitter);
FillXRect(xr, &wrapper.getRgn(), wrapper.getBlitter());
}
#ifdef SK_SCALAR_IS_FLOAT
void SkScan::FillRect(const SkRect& r, const SkRasterClip& clip,
SkBlitter* blitter) {
if (clip.isEmpty() || r.isEmpty()) {
return;
}
if (clip.isBW()) {
FillRect(r, &clip.bwRgn(), blitter);
return;
}
SkAAClipBlitterWrapper wrapper(clip, blitter);
FillRect(r, &wrapper.getRgn(), wrapper.getBlitter());
}
#endif