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

skia/effects/SkNinePatch.cpp

Index: skia/effects/SkNinePatch.cpp
===================================================================
--- skia/effects/SkNinePatch.cpp	(revision 16859)
+++ skia/effects/SkNinePatch.cpp	(working copy)
@@ -1,287 +0,0 @@
-/*
-** 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.
-*/
-
-#include "SkNinePatch.h"
-#include "SkCanvas.h"
-#include "SkShader.h"
-
-static const uint16_t g3x3Indices[] = {
-    0, 5, 1,    0, 4, 5,
-    1, 6, 2,    1, 5, 6,
-    2, 7, 3,    2, 6, 7,
-    
-    4, 9, 5,    4, 8, 9,
-    5, 10, 6,   5, 9, 10,
-    6, 11, 7,   6, 10, 11,
-    
-    8, 13, 9,   8, 12, 13,
-    9, 14, 10,  9, 13, 14,
-    10, 15, 11, 10, 14, 15
-};
-
-static int fillIndices(uint16_t indices[], int xCount, int yCount) {
-    uint16_t* startIndices = indices;
-    
-    int n = 0;
-    for (int y = 0; y < yCount; y++) {
-        for (int x = 0; x < xCount; x++) {
-            *indices++ = n;
-            *indices++ = n + xCount + 2;
-            *indices++ = n + 1;
-            
-            *indices++ = n;
-            *indices++ = n + xCount + 1;
-            *indices++ = n + xCount + 2;
-            
-            n += 1;
-        }
-        n += 1;
-    }
-    return indices - startIndices;
-}
-
-static void fillRow(SkPoint verts[], SkPoint texs[],
-                    const SkScalar vy, const SkScalar ty,
-                    const SkRect& bounds, const int32_t xDivs[], int numXDivs,
-                    const SkScalar stretchX, int width) {
-    SkScalar vx = bounds.fLeft;
-    verts->set(vx, vy); verts++;
-    texs->set(0, ty); texs++;
-    for (int x = 0; x < numXDivs; x++) {
-        SkScalar tx = SkIntToScalar(xDivs[x]);
-        if (x & 1) {
-            vx += stretchX;
-        } else {
-            vx += tx;
-        }
-        verts->set(vx, vy); verts++;
-        texs->set(tx, ty); texs++;
-    }
-    verts->set(bounds.fRight, vy); verts++;
-    texs->set(SkIntToScalar(width), ty); texs++;
-}
-
-struct Mesh {
-    const SkPoint*  fVerts;
-    const SkPoint*  fTexs;
-    const SkColor*  fColors;
-    const uint16_t* fIndices;
-};
-
-void SkNinePatch::DrawMesh(SkCanvas* canvas, const SkRect& bounds,
-                           const SkBitmap& bitmap,
-                           const int32_t xDivs[], int numXDivs,
-                           const int32_t yDivs[], int numYDivs,
-                           const SkPaint* paint) {
-    if (bounds.isEmpty() || bitmap.width() == 0 || bitmap.height() == 0) {
-        return;
-    }
-    
-    // should try a quick-reject test before calling lockPixels
-    SkAutoLockPixels alp(bitmap);
-    // after the lock, it is valid to check
-    if (!bitmap.readyToDraw()) {
-        return;
-    }
-    
-    // check for degenerate divs (just an optimization, not required)
-    {
-        int i;
-        int zeros = 0;
-        for (i = 0; i < numYDivs && yDivs[i] == 0; i++) {
-            zeros += 1;
-        }
-        numYDivs -= zeros;
-        yDivs += zeros;
-        for (i = numYDivs - 1; i >= 0 && yDivs[i] == bitmap.height(); --i) {
-            numYDivs -= 1;
-        }
-    }
-    
-    Mesh mesh;
-    
-    const int numXStretch = (numXDivs + 1) >> 1;
-    const int numYStretch = (numYDivs + 1) >> 1;
-    
-    if (numXStretch < 1 && numYStretch < 1) {
-    BITMAP_RECT:
-//        SkDebugf("------ drawasamesh revert to bitmaprect\n");
-        canvas->drawBitmapRect(bitmap, NULL, bounds, paint);
-        return;
-    }
-    
-    if (false) {
-        int i;
-        for (i = 0; i < numXDivs; i++) {
-            SkDebugf("--- xdivs[%d] %d\n", i, xDivs[i]);
-        }
-        for (i = 0; i < numYDivs; i++) {
-            SkDebugf("--- ydivs[%d] %d\n", i, yDivs[i]);
-        }
-    }
-    
-    SkScalar stretchX = 0, stretchY = 0;
-    
-    if (numXStretch > 0) {
-        int stretchSize = 0;
-        for (int i = 1; i < numXDivs; i += 2) {
-            stretchSize += xDivs[i] - xDivs[i-1];
-        }
-        int fixed = bitmap.width() - stretchSize;
-        stretchX = (bounds.width() - SkIntToScalar(fixed)) / numXStretch;
-        if (stretchX < 0) {
-            goto BITMAP_RECT;
-        }
-    }
-    
-    if (numYStretch > 0) {
-        int stretchSize = 0;
-        for (int i = 1; i < numYDivs; i += 2) {
-            stretchSize += yDivs[i] - yDivs[i-1];
-        }
-        int fixed = bitmap.height() - stretchSize;
-        stretchY = (bounds.height() - SkIntToScalar(fixed)) / numYStretch;
-        if (stretchY < 0) {
-            goto BITMAP_RECT;
-        }
-    }
-    
-#if 0
-    SkDebugf("---- drawasamesh [%d %d] -> [%g %g] <%d %d> (%g %g)\n",
-             bitmap.width(), bitmap.height(),
-             SkScalarToFloat(bounds.width()), SkScalarToFloat(bounds.height()),
-             numXDivs + 1, numYDivs + 1,
-             SkScalarToFloat(stretchX), SkScalarToFloat(stretchY));
-#endif
-
-    const int vCount = (numXDivs + 2) * (numYDivs + 2);
-    // number of celss * 2 (tris per cell) * 3 (verts per tri)
-    const int indexCount = (numXDivs + 1) * (numYDivs + 1) * 2 * 3;
-    // allocate 2 times, one for verts, one for texs, plus indices
-    SkAutoMalloc storage(vCount * sizeof(SkPoint) * 2 +
-                         indexCount * sizeof(uint16_t));
-    SkPoint* verts = (SkPoint*)storage.get();
-    SkPoint* texs = verts + vCount;
-    uint16_t* indices = (uint16_t*)(texs + vCount);
-    
-    mesh.fVerts = verts;
-    mesh.fTexs = texs;
-    mesh.fColors = NULL;
-    mesh.fIndices = NULL;
-    
-    // we use <= for YDivs, since the prebuild indices work for 3x2 and 3x1 too
-    if (numXDivs == 2 && numYDivs <= 2) {
-        mesh.fIndices = g3x3Indices;
-    } else {
-        int n = fillIndices(indices, numXDivs + 1, numYDivs + 1);
-        SkASSERT(n == indexCount);
-        mesh.fIndices = indices;
-    }
-    
-    SkScalar vy = bounds.fTop;
-    fillRow(verts, texs, vy, 0, bounds, xDivs, numXDivs,
-            stretchX, bitmap.width());
-    verts += numXDivs + 2;
-    texs += numXDivs + 2;
-    for (int y = 0; y < numYDivs; y++) {
-        const SkScalar ty = SkIntToScalar(yDivs[y]);
-        if (y & 1) {
-            vy += stretchY;
-        } else {
-            vy += ty;
-        }
-        fillRow(verts, texs, vy, ty, bounds, xDivs, numXDivs,
-                stretchX, bitmap.width());
-        verts += numXDivs + 2;
-        texs += numXDivs + 2;
-    }
-    fillRow(verts, texs, bounds.fBottom, SkIntToScalar(bitmap.height()),
-            bounds, xDivs, numXDivs, stretchX, bitmap.width());
-    
-    SkShader* shader = SkShader::CreateBitmapShader(bitmap,
-                                                    SkShader::kClamp_TileMode,
-                                                    SkShader::kClamp_TileMode);
-    SkPaint p;
-    if (paint) {
-        p = *paint;
-    }
-    p.setShader(shader)->unref();
-    canvas->drawVertices(SkCanvas::kTriangles_VertexMode, vCount,
-                         mesh.fVerts, mesh.fTexs, mesh.fColors, NULL,
-                         mesh.fIndices, indexCount, p);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-static void drawNineViaRects(SkCanvas* canvas, const SkRect& dst,
-                             const SkBitmap& bitmap, const SkIRect& margins,
-                             const SkPaint* paint) {
-    const int32_t srcX[4] = {
-        0, margins.fLeft, bitmap.width() - margins.fRight, bitmap.width()
-    };
-    const int32_t srcY[4] = {
-        0, margins.fTop, bitmap.height() - margins.fBottom, bitmap.height()
-    };
-    const SkScalar dstX[4] = {
-        dst.fLeft, dst.fLeft + SkIntToScalar(margins.fLeft),
-        dst.fRight - SkIntToScalar(margins.fRight), dst.fRight
-    };
-    const SkScalar dstY[4] = {
-        dst.fTop, dst.fTop + SkIntToScalar(margins.fTop),
-        dst.fBottom - SkIntToScalar(margins.fBottom), dst.fBottom
-    };
-    
-    SkIRect s;
-    SkRect  d;
-    for (int y = 0; y < 3; y++) {
-        s.fTop = srcY[y];
-        s.fBottom = srcY[y+1];
-        d.fTop = dstY[y];
-        d.fBottom = dstY[y+1];
-        for (int x = 0; x < 3; x++) {
-            s.fLeft = srcX[x];
-            s.fRight = srcX[x+1];
-            d.fLeft = dstX[x];
-            d.fRight = dstX[x+1];
-            canvas->drawBitmapRect(bitmap, &s, d, paint);
-        }
-    }
-}
-
-void SkNinePatch::DrawNine(SkCanvas* canvas, const SkRect& bounds,
-                           const SkBitmap& bitmap, const SkIRect& margins,
-                           const SkPaint* paint) {
-    /** Our vertices code has numerical precision problems if the transformed
-     coordinates land directly on a 1/2 pixel boundary. To work around that
-     for now, we only take the vertices case if we are in opengl. Also,
-     when not in GL, the vertices impl is slower (more math) than calling
-     the viaRects code.
-     */
-    if (canvas->getViewport(NULL)) {    // returns true for OpenGL
-        int32_t xDivs[2];
-        int32_t yDivs[2];
-        
-        xDivs[0] = margins.fLeft;
-        xDivs[1] = bitmap.width() - margins.fRight;
-        yDivs[0] = margins.fTop;
-        yDivs[1] = bitmap.height() - margins.fBottom;
-        
-        SkNinePatch::DrawMesh(canvas, bounds, bitmap,
-                              xDivs, 2, yDivs, 2, paint);
-    } else {
-        drawNineViaRects(canvas, bounds, bitmap, margins, paint);
-    }
-}