michael@0: 
michael@0: /*
michael@0:  * Copyright 2006 The Android Open Source Project
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #include "SkScan.h"
michael@0: #include "SkBlitter.h"
michael@0: #include "SkRasterClip.h"
michael@0: 
michael@0: static inline void blitrect(SkBlitter* blitter, const SkIRect& r) {
michael@0:     blitter->blitRect(r.fLeft, r.fTop, r.width(), r.height());
michael@0: }
michael@0: 
michael@0: void SkScan::FillIRect(const SkIRect& r, const SkRegion* clip,
michael@0:                        SkBlitter* blitter) {
michael@0:     if (!r.isEmpty()) {
michael@0:         if (clip) {
michael@0:             if (clip->isRect()) {
michael@0:                 const SkIRect& clipBounds = clip->getBounds();
michael@0: 
michael@0:                 if (clipBounds.contains(r)) {
michael@0:                     blitrect(blitter, r);
michael@0:                 } else {
michael@0:                     SkIRect rr = r;
michael@0:                     if (rr.intersect(clipBounds)) {
michael@0:                         blitrect(blitter, rr);
michael@0:                     }
michael@0:                 }
michael@0:             } else {
michael@0:                 SkRegion::Cliperator    cliper(*clip, r);
michael@0:                 const SkIRect&          rr = cliper.rect();
michael@0: 
michael@0:                 while (!cliper.done()) {
michael@0:                     blitrect(blitter, rr);
michael@0:                     cliper.next();
michael@0:                 }
michael@0:             }
michael@0:         } else {
michael@0:             blitrect(blitter, r);
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkScan::FillXRect(const SkXRect& xr, const SkRegion* clip,
michael@0:                        SkBlitter* blitter) {
michael@0:     SkIRect r;
michael@0: 
michael@0:     XRect_round(xr, &r);
michael@0:     SkScan::FillIRect(r, clip, blitter);
michael@0: }
michael@0: 
michael@0: void SkScan::FillRect(const SkRect& r, const SkRegion* clip,
michael@0:                        SkBlitter* blitter) {
michael@0:     SkIRect ir;
michael@0: 
michael@0:     r.round(&ir);
michael@0:     SkScan::FillIRect(ir, clip, blitter);
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: void SkScan::FillIRect(const SkIRect& r, const SkRasterClip& clip,
michael@0:                        SkBlitter* blitter) {
michael@0:     if (clip.isEmpty() || r.isEmpty()) {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (clip.isBW()) {
michael@0:         FillIRect(r, &clip.bwRgn(), blitter);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     SkAAClipBlitterWrapper wrapper(clip, blitter);
michael@0:     FillIRect(r, &wrapper.getRgn(), wrapper.getBlitter());
michael@0: }
michael@0: 
michael@0: void SkScan::FillXRect(const SkXRect& xr, const SkRasterClip& clip,
michael@0:                        SkBlitter* blitter) {
michael@0:     if (clip.isEmpty() || xr.isEmpty()) {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (clip.isBW()) {
michael@0:         FillXRect(xr, &clip.bwRgn(), blitter);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     SkAAClipBlitterWrapper wrapper(clip, blitter);
michael@0:     FillXRect(xr, &wrapper.getRgn(), wrapper.getBlitter());
michael@0: }
michael@0: 
michael@0: void SkScan::FillRect(const SkRect& r, const SkRasterClip& clip,
michael@0:                       SkBlitter* blitter) {
michael@0:     if (clip.isEmpty() || r.isEmpty()) {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (clip.isBW()) {
michael@0:         FillRect(r, &clip.bwRgn(), blitter);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     SkAAClipBlitterWrapper wrapper(clip, blitter);
michael@0:     FillRect(r, &wrapper.getRgn(), wrapper.getBlitter());
michael@0: }