skia WIPjarred/canvas

1 files changed, 107 insertions, 0 deletions

diff --git a/src/deps/skia/include/utils/SkCamera.h b/src/deps/skia/include/utils/SkCamera.h
new file mode 100644
index 000000000..51a7d4d6b
--- /dev/null
+++ b/src/deps/skia/include/utils/SkCamera.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+//  Inspired by Rob Johnson's most excellent QuickDraw GX sample code
+
+#ifndef SkCamera_DEFINED
+#define SkCamera_DEFINED
+
+#include "include/core/SkM44.h"
+#include "include/core/SkMatrix.h"
+#include "include/private/SkNoncopyable.h"
+
+// NOTE -- This entire header / impl is deprecated, and will be removed from Skia soon.
+//
+// Skia now has support for a 4x matrix (SkM44) in SkCanvas.
+//
+
+class SkCanvas;
+
+// DEPRECATED
+class SkPatch3D {
+public:
+    SkPatch3D();
+
+    void    reset();
+    void    transform(const SkM44&, SkPatch3D* dst = nullptr) const;
+
+    // dot a unit vector with the patch's normal
+    SkScalar dotWith(SkScalar dx, SkScalar dy, SkScalar dz) const;
+    SkScalar dotWith(const SkV3& v) const {
+        return this->dotWith(v.x, v.y, v.z);
+    }
+
+    // deprecated, but still here for animator (for now)
+    void rotate(SkScalar /*x*/, SkScalar /*y*/, SkScalar /*z*/) {}
+    void rotateDegrees(SkScalar /*x*/, SkScalar /*y*/, SkScalar /*z*/) {}
+
+private:
+public: // make public for SkDraw3D for now
+    SkV3  fU, fV;
+    SkV3  fOrigin;
+
+    friend class SkCamera3D;
+};
+
+// DEPRECATED
+class SkCamera3D {
+public:
+    SkCamera3D();
+
+    void reset();
+    void update();
+    void patchToMatrix(const SkPatch3D&, SkMatrix* matrix) const;
+
+    SkV3   fLocation;   // origin of the camera's space
+    SkV3   fAxis;       // view direction
+    SkV3   fZenith;     // up direction
+    SkV3   fObserver;   // eye position (may not be the same as the origin)
+
+private:
+    mutable SkMatrix    fOrientation;
+    mutable bool        fNeedToUpdate;
+
+    void doUpdate() const;
+};
+
+// DEPRECATED
+class SK_API Sk3DView : SkNoncopyable {
+public:
+    Sk3DView();
+    ~Sk3DView();
+
+    void save();
+    void restore();
+
+    void translate(SkScalar x, SkScalar y, SkScalar z);
+    void rotateX(SkScalar deg);
+    void rotateY(SkScalar deg);
+    void rotateZ(SkScalar deg);
+
+#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
+    void setCameraLocation(SkScalar x, SkScalar y, SkScalar z);
+    SkScalar getCameraLocationX() const;
+    SkScalar getCameraLocationY() const;
+    SkScalar getCameraLocationZ() const;
+#endif
+
+    void getMatrix(SkMatrix*) const;
+    void applyToCanvas(SkCanvas*) const;
+
+    SkScalar dotWithNormal(SkScalar dx, SkScalar dy, SkScalar dz) const;
+
+private:
+    struct Rec {
+        Rec*    fNext;
+        SkM44   fMatrix;
+    };
+    Rec*        fRec;
+    Rec         fInitialRec;
+    SkCamera3D  fCamera;
+};
+
+#endif