Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(206)

Side by Side Diff: skia/sgl/SkAutoKern.h

Issue 113827: Remove the remainder of the skia source code from the Chromium repo.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 6 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « skia/sgl/SkAntiRun.h ('k') | skia/sgl/SkBitmap.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 /* libs/graphics/sgl/SkAutoKern.h
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 #ifndef SkAutoKern_DEFINED
19 #define SkAutoKern_DEFINED
20
21 #include "SkScalerContext.h"
22
23 #define SkAutoKern_AdjustF(prev, next) (((next) - (prev) + 32) >> 6 << 16)
24 #define SkAutoKern_AdjustS(prev, next) SkIntToScalar(((next) - (prev) + 32) > > 6)
25
26 /* this is a helper class to perform auto-kerning
27 * the adjust() method returns a SkFixed corresponding
28 * to a +1/0/-1 pixel adjustment
29 */
30
31 class SkAutoKern {
32 public:
33 SkAutoKern() : fPrevRsbDelta(0) {}
34
35 SkFixed adjust(const SkGlyph& glyph)
36 {
37 // if (SkAbs32(glyph.fLsbDelta) > 47 || SkAbs32(glyph.fRsbDelta) > 47)
38 // printf("------- %d> L %d R %d\n", glyph.f_GlyphID, glyph.fLsbDelta , glyph.fRsbDelta);
39
40 #if 0
41 int distort = fPrevRsbDelta - glyph.fLsbDelta;
42
43 fPrevRsbDelta = glyph.fRsbDelta;
44
45 if (distort >= 32)
46 return -SK_Fixed1;
47 else if (distort < -32)
48 return +SK_Fixed1;
49 else
50 return 0;
51 #else
52 SkFixed adjust = SkAutoKern_AdjustF(fPrevRsbDelta, glyph.fLsbDelta);
53 fPrevRsbDelta = glyph.fRsbDelta;
54 return adjust;
55 #endif
56 }
57 private:
58 int fPrevRsbDelta;
59 };
60
61 #endif
62
OLDNEW
« no previous file with comments | « skia/sgl/SkAntiRun.h ('k') | skia/sgl/SkBitmap.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698