reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | /* libs/graphics/sgl/SkScan.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #include "SkScan.h" |
| 19 | #include "SkBlitter.h" |
| 20 | #include "SkRegion.h" |
| 21 | |
| 22 | static inline void blitrect(SkBlitter* blitter, const SkIRect& r) { |
| 23 | blitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 24 | } |
| 25 | |
| 26 | void SkScan::FillIRect(const SkIRect& r, const SkRegion* clip, |
| 27 | SkBlitter* blitter) { |
| 28 | if (!r.isEmpty()) { |
| 29 | if (clip) { |
| 30 | if (clip->isRect()) { |
| 31 | const SkIRect& clipBounds = clip->getBounds(); |
| 32 | |
| 33 | if (clipBounds.contains(r)) { |
| 34 | blitrect(blitter, r); |
| 35 | } else { |
| 36 | SkIRect rr = r; |
| 37 | if (rr.intersect(clipBounds)) { |
| 38 | blitrect(blitter, rr); |
| 39 | } |
| 40 | } |
| 41 | } else { |
| 42 | SkRegion::Cliperator cliper(*clip, r); |
| 43 | const SkIRect& rr = cliper.rect(); |
| 44 | |
| 45 | while (!cliper.done()) { |
| 46 | blitrect(blitter, rr); |
| 47 | cliper.next(); |
| 48 | } |
| 49 | } |
| 50 | } else { |
| 51 | blitrect(blitter, r); |
| 52 | } |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | void SkScan::FillXRect(const SkXRect& xr, const SkRegion* clip, |
| 57 | SkBlitter* blitter) { |
| 58 | SkIRect r; |
| 59 | |
| 60 | XRect_round(xr, &r); |
| 61 | SkScan::FillIRect(r, clip, blitter); |
| 62 | } |
| 63 | |
| 64 | #ifdef SK_SCALAR_IS_FLOAT |
| 65 | |
| 66 | void SkScan::FillRect(const SkRect& r, const SkRegion* clip, |
| 67 | SkBlitter* blitter) { |
| 68 | SkIRect ir; |
| 69 | |
| 70 | r.round(&ir); |
| 71 | SkScan::FillIRect(ir, clip, blitter); |
| 72 | } |
| 73 | |
| 74 | #endif |
| 75 | |