Remove the remainder of the skia source code from the Chromium repo....

skia/sgl/SkScan.h

-/* libs/graphics/sgl/SkScan.h
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-#ifndef SkScan_DEFINED
-#define SkScan_DEFINED
-
-#include "SkRect.h"
-
-class SkRegion;
-class SkBlitter;
-class SkPath;
-
-/** Defines a fixed-point rectangle, identical to the integer SkIRect, but its
-    coordinates are treated as SkFixed rather than int32_t.
-*/
-typedef SkIRect SkXRect;
-
-class SkScan {
-public:
-    static void FillIRect(const SkIRect&, const SkRegion* clip, SkBlitter*);
-    static void FillXRect(const SkXRect&, const SkRegion* clip, SkBlitter*);
-
-#ifdef SK_SCALAR_IS_FIXED
-    static void FillRect(const SkRect& rect, const SkRegion* clip,
-                         SkBlitter* blitter) {
-        SkScan::FillXRect(*(const SkXRect*)&rect, clip, blitter);
-    }
-#else
-    static void FillRect(const SkRect&, const SkRegion* clip, SkBlitter*);
-#endif
-
-    static void FillTriangle(const SkPoint pts[], const SkRegion*, SkBlitter*);
-    static void FillPath(const SkPath&, const SkRegion& clip, SkBlitter*);
-
-    static void FillTriangle(const SkPoint& a, const SkPoint& b,
-                             const SkPoint& c, const SkRegion* clip,
-                             SkBlitter* blitter) {
-        SkPoint pts[3];
-        pts[0] = a;
-        pts[1] = b;
-        pts[2] = c;
-        FillTriangle(pts, clip, blitter);
-    }
-
-    static void HairLine(const SkPoint&, const SkPoint&, const SkRegion* clip, SkBlitter*);
-    static void HairRect(const SkRect&, const SkRegion* clip, SkBlitter*);
-    static void HairPath(const SkPath&, const SkRegion* clip, SkBlitter*);
-
-    static void FrameRect(const SkRect&, SkScalar width, const SkRegion* clip, SkBlitter*);
-
-    static void AntiFillXRect(const SkXRect&, const SkRegion* clip, SkBlitter*);
-#ifdef SK_SCALAR_IS_FIXED
-    static void AntiFillRect(const SkRect& rect, const SkRegion* clip,
-                         SkBlitter* blitter) {
-        SkScan::AntiFillXRect(*(const SkXRect*)&rect, clip, blitter);
-    }
-#else
-    static void AntiFillRect(const SkRect&, const SkRegion* clip, SkBlitter*);
-#endif
-    
-    static void AntiFillPath(const SkPath&, const SkRegion& clip, SkBlitter*);
-
-    static void AntiHairLine(const SkPoint&, const SkPoint&, const SkRegion* clip, SkBlitter*);
-    static void AntiHairRect(const SkRect&, const SkRegion* clip, SkBlitter*);
-    static void AntiHairPath(const SkPath&, const SkRegion* clip, SkBlitter*);
-};
-
-/** Assign an SkXRect from a SkIRect, by promoting the src rect's coordinates
-    from int to SkFixed. Does not check for overflow if the src coordinates
-    exceed 32K
-*/
-static void XRect_set(SkXRect* xr, const SkIRect& src) {
-    xr->fLeft = SkIntToFixed(src.fLeft);
-    xr->fTop = SkIntToFixed(src.fTop);
-    xr->fRight = SkIntToFixed(src.fRight);
-    xr->fBottom = SkIntToFixed(src.fBottom);
-}
-
-/** Assign an SkXRect from a SkRect, by promoting the src rect's coordinates
-    from SkScalar to SkFixed. Does not check for overflow if the src coordinates
-    exceed 32K
-*/
-static void XRect_set(SkXRect* xr, const SkRect& src) {
-    xr->fLeft = SkScalarToFixed(src.fLeft);
-    xr->fTop = SkScalarToFixed(src.fTop);
-    xr->fRight = SkScalarToFixed(src.fRight);
-    xr->fBottom = SkScalarToFixed(src.fBottom);
-}
-
-/** Round the SkXRect coordinates, and store the result in the SkIRect.
-*/
-static void XRect_round(const SkXRect& xr, SkIRect* dst) {
-    dst->fLeft = SkFixedRound(xr.fLeft);
-    dst->fTop = SkFixedRound(xr.fTop);
-    dst->fRight = SkFixedRound(xr.fRight);
-    dst->fBottom = SkFixedRound(xr.fBottom);
-}
-
-/** Round the SkXRect coordinates out (i.e. use floor for left/top, and ceiling
-    for right/bottom), and store the result in the SkIRect.
-*/
-static void XRect_roundOut(const SkXRect& xr, SkIRect* dst) {
-    dst->fLeft = SkFixedFloor(xr.fLeft);
-    dst->fTop = SkFixedFloor(xr.fTop);
-    dst->fRight = SkFixedCeil(xr.fRight);
-    dst->fBottom = SkFixedCeil(xr.fBottom);
-}
-
-#endif