shape ops work in progress

M    Intersection/DataTypes.cpp
M    Intersection/QuadraticIntersection_Test.cpp
M    Intersection/EdgeWalker.cpp
M    Intersection/LineQuadraticIntersection_Test.cpp
M    Intersection/LineIntersection_Test.cpp
M    Intersection/LineIntersection.cpp
D    Intersection/edge.xcodeproj
M    Intersection/SimplifyFindTop_Test.cpp
M    Intersection/DataTypes.h
A    Intersection/SimplifyRect4x4_Test.cpp
M    Intersection/CubicIntersection_Test.cpp
M    Intersection/QuadraticUtilities.h
M    Intersection/LineCubicIntersection_Test.cpp
A    Intersection/CurveUtilities.h
M    Intersection/QuadraticBezierClip.cpp
M    Intersection/QuadraticBounds.cpp
M    Intersection/LineUtilities.h
M    Intersection/Intersection_Tests.cpp
M    Intersection/Simplify.cpp
M    Intersection/EdgeWalker_TestUtility.cpp
M    Intersection/QuadraticUtilities.cpp
M    Intersection/thingsToDo.txt
M    Intersection/LineUtilities.cpp
M    Intersection/CubicUtilities.h
M    Intersection/SimplifyFindNext_Test.cpp
M    Intersection/Intersection_Tests.h
M    Intersection/CubicBezierClip.cpp
M    Intersection/ActiveEdge_Test.cpp
M    Intersection/CubicBounds.cpp
M    Intersection/Simplify.h
M    Intersection/SimplifyNew_Test.cpp
M    Intersection/EdgeWalker_Test.h
M    Intersection/CubicUtilities.cpp
M    Intersection/op.htm
M    Intersection/ConvexHull.cpp
D    Intersection/RectUtilities.cpp
M    Intersection/SimplifyAddIntersectingTs_Test.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@4429 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/SimplifyRect4x4_Test.cpp b/experimental/Intersection/SimplifyRect4x4_Test.cpp
new file mode 100644
index 0000000..b83c1cd
--- /dev/null
+++ b/experimental/Intersection/SimplifyRect4x4_Test.cpp
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "EdgeWalker_Test.h"
+#include "Intersection_Tests.h"
+#include "ShapeOps.h"
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include <assert.h>
+#include <pthread.h>
+
+// four rects, of four sizes
+// for 3 smaller sizes, tall, wide
+    // top upper mid lower bottom aligned (3 bits, 5 values)
+    // same with x (3 bits, 5 values)
+// not included, square, tall, wide (2 bits)
+// cw or ccw (1 bit)
+
+static void* testSimplify4x4RectsMain(void* data)
+{
+    char pathStr[1024]; // gdb: set print elements 400
+    bzero(pathStr, sizeof(pathStr));
+    SkASSERT(data);
+    State4& state = *(State4*) data;
+    int aShape = state.a & 0x03;
+    int aCW = state.a >> 1;
+    int bShape = state.b & 0x03;
+    int bCW = state.b >> 1;
+    int cShape = state.c & 0x03;
+    int cCW = state.c >> 1;
+    int dShape = state.d & 0x03;
+    int dCW = state.d >> 1;
+    for (int aXAlign = 0 ; aXAlign < 5; ++aXAlign) {
+    for (int aYAlign = 0 ; aYAlign < 5; ++aYAlign) {
+    for (int bXAlign = 0 ; bXAlign < 5; ++bXAlign) {
+    for (int bYAlign = 0 ; bYAlign < 5; ++bYAlign) {
+    for (int cXAlign = 0 ; cXAlign < 5; ++cXAlign) {
+    for (int cYAlign = 0 ; cYAlign < 5; ++cYAlign) {
+    for (int dXAlign = 0 ; dXAlign < 5; ++dXAlign) {
+    for (int dYAlign = 0 ; dYAlign < 5; ++dYAlign) {
+        SkPath path, out;
+        char* str = pathStr;
+        path.setFillType(SkPath::kWinding_FillType);
+        int l, t, r, b;
+        if (aShape) {
+            switch (aShape) {
+                case 1: // square
+                    l =  0; r = 60;
+                    t =  0; b = 60;
+                    aXAlign = 5;
+                    aYAlign = 5;
+                    break;
+                case 2:
+                    l =  aXAlign * 12;
+                    r =  l + 30; 
+                    t =  0; b = 60;
+                    aYAlign = 5;
+                    break;
+                case 3:
+                    l =  0; r = 60;
+                    t =  aYAlign * 12;
+                    b =  l + 30; 
+                    aXAlign = 5;
+                    break;
+            }
+            path.addRect(l, t, r, b, (SkPath::Direction) aCW);
+            str += sprintf(str, "    path.addRect(%d, %d, %d, %d,"
+                    " (SkPath::Direction) %d);\n", l, t, r, b, aCW);
+        } else {
+            aXAlign = 5;
+            aYAlign = 5;
+        }
+        if (bShape) {
+            switch (bShape) {
+                case 1: // square
+                    l =  bXAlign * 10;
+                    r =  l + 20; 
+                    t =  bYAlign * 10;
+                    b =  l + 20; 
+                    break;
+                case 2:
+                    l =  bXAlign * 10;
+                    r =  l + 20; 
+                    t =  10; b = 40;
+                    bYAlign = 5;
+                    break;
+                case 3:
+                    l =  10; r = 40;
+                    t =  bYAlign * 10;
+                    b =  l + 20; 
+                    bXAlign = 5;
+                    break;
+            }
+            path.addRect(l, t, r, b, (SkPath::Direction) bCW);
+            str += sprintf(str, "    path.addRect(%d, %d, %d, %d,"
+                    " (SkPath::Direction) %d);\n", l, t, r, b, bCW);
+        } else {
+            bXAlign = 5;
+            bYAlign = 5;
+        }
+        if (cShape) {
+            switch (cShape) {
+                case 1: // square
+                    l =  cXAlign * 6;
+                    r =  l + 12; 
+                    t =  cYAlign * 6;
+                    b =  l + 12; 
+                    break;
+                case 2:
+                    l =  cXAlign * 6;
+                    r =  l + 12; 
+                    t =  20; b = 30;
+                    cYAlign = 5;
+                    break;
+                case 3:
+                    l =  20; r = 30;
+                    t =  cYAlign * 6;
+                    b =  l + 20; 
+                    cXAlign = 5;
+                    break;
+            }
+            path.addRect(l, t, r, b, (SkPath::Direction) cCW);
+            str += sprintf(str, "    path.addRect(%d, %d, %d, %d,"
+                    " (SkPath::Direction) %d);\n", l, t, r, b, cCW);
+        } else {
+            cXAlign = 5;
+            cYAlign = 5;
+        }
+        if (dShape) {
+            switch (dShape) {
+                case 1: // square
+                    l =  dXAlign * 4;
+                    r =  l + 9; 
+                    t =  dYAlign * 4;
+                    b =  l + 9; 
+                    break;
+                case 2:
+                    l =  dXAlign * 6;
+                    r =  l + 9; 
+                    t =  32; b = 36;
+                    dYAlign = 5;
+                    break;
+                case 3:
+                    l =  32; r = 36;
+                    t =  dYAlign * 6;
+                    b =  l + 9; 
+                    dXAlign = 5;
+                    break;
+            }
+            path.addRect(l, t, r, b, (SkPath::Direction) dCW);
+            str += sprintf(str, "    path.addRect(%d, %d, %d, %d,"
+                    " (SkPath::Direction) %d);\n", l, t, r, b, dCW);
+        } else {
+            dXAlign = 5;
+            dYAlign = 5;
+        }
+        path.close();
+        SkDebugf("%s", pathStr);
+        if (!testSimplifyx(path, out, state.bitmap, state.canvas)) {
+            SkDebugf("*/\n{ %s %d, %d, %d, %d, %d, %d, %d, %d,"
+                    " %d, %d, %d, %d },\n/*\n", 
+                    __FUNCTION__, state.a, state.b, state.c, state.d,
+                    aXAlign, aYAlign, bXAlign, bYAlign,
+                    cXAlign, cYAlign, dXAlign, dYAlign);
+        }               
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return NULL;
+}
+
+const int maxThreads = 1; // gRunTestsInOneThread ? 1 : 24;
+
+void Simplify4x4RectsThreaded_Test()
+{
+    State4 threadState[maxThreads];
+    int threadIndex = 0;
+    for (int a = 0; a < 8; ++a) { // outermost
+        for (int b = a ; b < 8; ++b) {
+            for (int c = b ; c < 8; ++c) {
+                for (int d = c; d < 8; ++d) {                 
+                    State4* statePtr = &threadState[threadIndex];
+                    statePtr->a = a;
+                    statePtr->b = b;
+                    statePtr->c = c;
+                    statePtr->d = d;
+                    if (maxThreads > 1) {
+                        createThread(statePtr, testSimplify4x4RectsMain);
+                        if (++threadIndex >= maxThreads) {
+                            waitForCompletion(threadState, threadIndex);
+                        }
+                    } else {
+                        testSimplify4x4RectsMain(statePtr);
+                    }
+                }
+            }
+        }
+    }
+    waitForCompletion(threadState, threadIndex);
+}
+