Path rendering

Change-Id: I5379a676c9ec6a9b25f21bc1e050053f27e411dd
diff --git a/graphics/java/android/renderscript/Path.java b/graphics/java/android/renderscript/Path.java
new file mode 100644
index 0000000..83ae150
--- /dev/null
+++ b/graphics/java/android/renderscript/Path.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2008 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.
+ */
+
+package android.renderscript;
+
+import java.util.Vector;
+import android.util.Log;
+
+/**
+ * @hide
+ *
+ */
+public class Path extends BaseObj {
+
+    public enum Primitive {
+        QUADRATIC_BEZIER(0),
+        CUBIC_BEZIER(1);
+
+        int mID;
+        Primitive(int id) {
+            mID = id;
+        }
+    }
+
+    Allocation mVertexBuffer;
+    Allocation mLoopBuffer;
+    Primitive mPrimitive;
+    float mQuality;
+    boolean mCoverageToAlpha;
+
+    Path(int id, RenderScript rs, Primitive p, Allocation vtx, Allocation loop, float q) {
+        super(id, rs);
+        mVertexBuffer = vtx;
+        mLoopBuffer = loop;
+        mPrimitive = p;
+        mQuality = q;
+    }
+
+    public Allocation getVertexAllocation() {
+        return mVertexBuffer;
+    }
+
+    public Allocation getLoopAllocation() {
+        return mLoopBuffer;
+    }
+
+    public Primitive getPrimitive() {
+        return mPrimitive;
+    }
+
+    @Override
+    void updateFromNative() {
+    }
+
+
+    public static Path createStaticPath(RenderScript rs, Primitive p, float quality, Allocation vtx) {
+        int id = rs.nPathCreate(p.mID, false, vtx.getID(), 0, quality);
+        Path newPath = new Path(id, rs, p, null, null, quality);
+        return newPath;
+    }
+
+    public static Path createStaticPath(RenderScript rs, Primitive p, float quality, Allocation vtx, Allocation loops) {
+        return null;
+    }
+
+    public static Path createDynamicPath(RenderScript rs, Primitive p, float quality, Allocation vtx) {
+        return null;
+    }
+
+    public static Path createDynamicPath(RenderScript rs, Primitive p, float quality, Allocation vtx, Allocation loops) {
+        return null;
+    }
+
+
+}
+
+
diff --git a/graphics/java/android/renderscript/RenderScript.java b/graphics/java/android/renderscript/RenderScript.java
index 1305633..5746e94 100644
--- a/graphics/java/android/renderscript/RenderScript.java
+++ b/graphics/java/android/renderscript/RenderScript.java
@@ -581,6 +581,11 @@
         rsnMeshGetIndices(mContext, id, idxIds, primitives, vtxIdCount);
     }
 
+    native int  rsnPathCreate(int con, int prim, boolean isStatic, int vtx, int loop, float q);
+    synchronized int nPathCreate(int prim, boolean isStatic, int vtx, int loop, float q) {
+        validate();
+        return rsnPathCreate(mContext, prim, isStatic, vtx, loop, q);
+    }
 
     int     mDev;
     int     mContext;
diff --git a/graphics/jni/android_renderscript_RenderScript.cpp b/graphics/jni/android_renderscript_RenderScript.cpp
index c4ef993..7b1f67d 100644
--- a/graphics/jni/android_renderscript_RenderScript.cpp
+++ b/graphics/jni/android_renderscript_RenderScript.cpp
@@ -1122,6 +1122,17 @@
 
 // ---------------------------------------------------------------------------
 
+//native int  rsnPathCreate(int con, int prim, boolean isStatic, int vtx, int loop, float q);
+static jint
+nPathCreate(JNIEnv *_env, jobject _this, RsContext con, jint prim, jboolean isStatic, jint _vtx, jint _loop, jfloat q) {
+    LOG_API("nPathCreate, con(%p)", con);
+
+    int id = (int)rsPathCreate(con, (RsPathPrimitive)prim, isStatic,
+                               (RsAllocation)_vtx,
+                               (RsAllocation)_loop, q);
+    return id;
+}
+
 static jint
 nMeshCreate(JNIEnv *_env, jobject _this, RsContext con, jintArray _vtx, jintArray _idx, jintArray _prim)
 {
@@ -1310,6 +1321,7 @@
 
 {"rsnSamplerCreate",                 "(IIIIIIF)I",                            (void*)nSamplerCreate },
 
+{"rsnPathCreate",                    "(IIZIIF)I",                             (void*)nPathCreate },
 {"rsnMeshCreate",                    "(I[I[I[I)I",                            (void*)nMeshCreate },
 
 {"rsnMeshGetVertexBufferCount",      "(II)I",                                 (void*)nMeshGetVertexBufferCount },
diff --git a/libs/rs/Android.mk b/libs/rs/Android.mk
index 58d3e5c..7f0cbeb 100644
--- a/libs/rs/Android.mk
+++ b/libs/rs/Android.mk
@@ -96,6 +96,7 @@
 	rsMatrix4x4.cpp \
 	rsMesh.cpp \
 	rsMutex.cpp \
+	rsPath.cpp \
 	rsProgram.cpp \
 	rsProgramFragment.cpp \
 	rsProgramStore.cpp \
@@ -118,6 +119,7 @@
 	driver/rsdGL.cpp \
 	driver/rsdMesh.cpp \
 	driver/rsdMeshObj.cpp \
+	driver/rsdPath.cpp \
 	driver/rsdProgram.cpp \
 	driver/rsdProgramRaster.cpp \
 	driver/rsdProgramStore.cpp \
@@ -203,6 +205,7 @@
 	rsMatrix4x4.cpp \
 	rsMesh.cpp \
 	rsMutex.cpp \
+	rsPath.cpp \
 	rsProgram.cpp \
 	rsProgramFragment.cpp \
 	rsProgramStore.cpp \
diff --git a/libs/rs/RenderScriptDefines.h b/libs/rs/RenderScriptDefines.h
index d092520..728b27a 100644
--- a/libs/rs/RenderScriptDefines.h
+++ b/libs/rs/RenderScriptDefines.h
@@ -41,6 +41,7 @@
 typedef void * RsSampler;
 typedef void * RsScript;
 typedef void * RsMesh;
+typedef void * RsPath;
 typedef void * RsType;
 typedef void * RsObjectBase;
 
@@ -258,6 +259,11 @@
     RS_PRIMITIVE_TRIANGLE_FAN
 };
 
+enum RsPathPrimitive {
+    RS_PATH_PRIMITIVE_QUADRATIC_BEZIER,
+    RS_PATH_PRIMITIVE_CUBIC_BEZIER
+};
+
 enum RsError {
     RS_ERROR_NONE = 0,
     RS_ERROR_BAD_SHADER = 1,
diff --git a/libs/rs/driver/rsdCore.cpp b/libs/rs/driver/rsdCore.cpp
index 9292fa1..a65e23b 100644
--- a/libs/rs/driver/rsdCore.cpp
+++ b/libs/rs/driver/rsdCore.cpp
@@ -18,6 +18,7 @@
 #include "rsdAllocation.h"
 #include "rsdBcc.h"
 #include "rsdGL.h"
+#include "rsdPath.h"
 #include "rsdProgramStore.h"
 #include "rsdProgramRaster.h"
 #include "rsdProgramVertex.h"
@@ -115,6 +116,13 @@
     },
 
     {
+        rsdPathInitStatic,
+        rsdPathInitDynamic,
+        rsdPathDraw,
+        rsdPathDestroy
+    },
+
+    {
         rsdSamplerInit,
         rsdSamplerDestroy
     },
diff --git a/libs/rs/driver/rsdPath.cpp b/libs/rs/driver/rsdPath.cpp
new file mode 100644
index 0000000..d475beb
--- /dev/null
+++ b/libs/rs/driver/rsdPath.cpp
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2011 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 <GLES/gl.h>
+#include <GLES2/gl2.h>
+#include <GLES/glext.h>
+
+#include <rs_hal.h>
+#include <rsContext.h>
+#include <rsPath.h>
+
+#include "rsdCore.h"
+#include "rsdPath.h"
+#include "rsdAllocation.h"
+#include "rsdGL.h"
+#include "rsdVertexArray.h"
+#include "rsdShaderCache.h"
+
+using namespace android;
+using namespace android::renderscript;
+
+class DrvPath {
+protected:
+    DrvPath();
+public:
+    virtual ~DrvPath();
+    virtual void draw(Context *) = 0;
+};
+
+class DrvPathStatic : public DrvPath {
+public:
+    typedef struct {
+        float x1, xc, x2;
+        float y1, yc, y2;
+    } segment_t;
+
+    segment_t *mSegments;
+    uint32_t mSegmentCount;
+
+    DrvPathStatic(const Allocation *vtx, const Allocation *loops);
+    virtual ~DrvPathStatic();
+
+    virtual void draw(Context *);
+};
+
+class DrvPathDynamic : public DrvPath {
+public:
+    DrvPathDynamic();
+    virtual ~DrvPathDynamic();
+};
+
+static void cleanup(const Context *rsc, const Path *m) {
+    DrvPath *dp = (DrvPath *)m->mHal.drv;
+    if (dp) {
+        delete dp;
+    }
+}
+
+bool rsdPathInitStatic(const Context *rsc, const Path *m,
+                       const Allocation *vtx, const Allocation *loops) {
+    DrvPathStatic *drv = NULL;
+    cleanup(rsc, m);
+
+    DrvPathStatic *dps = new DrvPathStatic(vtx, loops);
+    LOGE("init path m %p,  %p", m, dps);
+    m->mHal.drv = dps;
+    return dps != NULL;
+}
+
+bool rsdPathInitDynamic(const Context *rsc, const Path *m) {
+    return false;
+}
+
+
+void rsdPathDraw(const Context *rsc, const Path *m) {
+    LOGE("render m=%p", m);
+
+    DrvPath *drv = (DrvPath *)m->mHal.drv;
+    if(drv) {
+        LOGE("render 2 drv=%p", drv);
+        drv->draw((Context *)rsc);
+    }
+}
+
+void rsdPathDestroy(const Context *rsc, const Path *m) {
+    cleanup(rsc, m);
+    m->mHal.drv = NULL;
+}
+
+
+
+
+DrvPath::DrvPath() {
+}
+
+DrvPath::~DrvPath() {
+}
+
+DrvPathStatic::DrvPathStatic(const Allocation *vtx, const Allocation *loops) {
+    mSegmentCount = vtx->getType()->getDimX() / 3;
+    mSegments = new segment_t[mSegmentCount];
+
+    const float *fin = (const float *)vtx->getPtr();
+    for (uint32_t ct=0; ct < mSegmentCount; ct++) {
+        segment_t *s = &mSegments[ct];
+        s->x1 = fin[0];
+        s->y1 = fin[1];
+
+        s->xc = fin[2];
+        s->yc = fin[3];
+
+        s->x2 = fin[4];
+        s->y2 = fin[5];
+        fin += 6;
+    }
+}
+
+DrvPathStatic::~DrvPathStatic() {
+}
+
+void DrvPathStatic::draw(Context *rsc) {
+    const static float color[24] = {
+        1.f, 0.f, 0.f, 1.f,  0.5f, 0.f, 0.f, 1.f,
+        1.f, 0.f, 0.f, 1.f,  0.5f, 0.f, 0.f, 1.f,
+        1.f, 1.f, 1.f, 1.f,  1.f, 1.f, 1.f, 1.f};
+    float vtx[12];
+
+    LOGE("draw");
+    if (!rsc->setupCheck()) {
+        return;
+    }
+
+    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
+    if (!dc->gl.shaderCache->setup(rsc)) {
+        return;
+    }
+
+    RsdVertexArray::Attrib attribs[2];
+    attribs[0].set(GL_FLOAT, 2, 8, false, (uint32_t)vtx, "ATTRIB_position");
+    attribs[1].set(GL_FLOAT, 4, 16, false, (uint32_t)color, "ATTRIB_color");
+    RsdVertexArray va(attribs, 2);
+    va.setup(rsc);
+
+    LOGE("mSegmentCount %i", mSegmentCount);
+    for (uint32_t ct=0; ct < mSegmentCount; ct++) {
+        segment_t *s = &mSegments[ct];
+
+        vtx[0] = s->x1;
+        vtx[1] = s->y1;
+        vtx[2] = s->xc;
+        vtx[3] = s->yc;
+
+        vtx[4] = s->x2;
+        vtx[5] = s->y2;
+        vtx[6] = s->xc;
+        vtx[7] = s->yc;
+
+        vtx[8] = s->x1;
+        vtx[9] = s->y1;
+        vtx[10] = s->x2;
+        vtx[11] = s->y2;
+
+        RSD_CALL_GL(glDrawArrays, GL_LINES, 0, 6);
+    }
+
+}
+
+DrvPathDynamic::DrvPathDynamic() {
+}
+
+DrvPathDynamic::~DrvPathDynamic() {
+}
diff --git a/libs/rs/driver/rsdPath.h b/libs/rs/driver/rsdPath.h
new file mode 100644
index 0000000..fa00972
--- /dev/null
+++ b/libs/rs/driver/rsdPath.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2011 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 RSD_PATH_H
+#define RSD_PATH_H
+
+#include <rs_hal.h>
+
+
+bool rsdPathInitStatic(const android::renderscript::Context *rsc,
+                       const android::renderscript::Path *m,
+                       const android::renderscript::Allocation *vertex,
+                       const android::renderscript::Allocation *loops);
+bool rsdPathInitDynamic(const android::renderscript::Context *rsc,
+                        const android::renderscript::Path *m);
+void rsdPathDraw(const android::renderscript::Context *rsc,
+                 const android::renderscript::Path *m);
+void rsdPathDestroy(const android::renderscript::Context *rsc,
+                    const android::renderscript::Path *m);
+
+
+#endif
diff --git a/libs/rs/driver/rsdRuntimeStubs.cpp b/libs/rs/driver/rsdRuntimeStubs.cpp
index 90c8928..c2201be 100644
--- a/libs/rs/driver/rsdRuntimeStubs.cpp
+++ b/libs/rs/driver/rsdRuntimeStubs.cpp
@@ -25,6 +25,7 @@
 #include "rsdCore.h"
 
 #include "rsdRuntime.h"
+#include "rsdPath.h"
 
 #include <time.h>
 
@@ -204,6 +205,12 @@
     rsrDrawRect(rsc, sc, x1, y1, x2, y2, z);
 }
 
+static void SC_DrawPath(Path *p) {
+    GET_TLS();
+    //rsrDrawPath(rsc, sc, p);
+    rsdPathDraw(rsc, p);
+}
+
 static void SC_DrawMesh(Mesh *m) {
     GET_TLS();
     rsrDrawMesh(rsc, sc, m);
@@ -533,6 +540,10 @@
     { "_Z13rsClearObjectP9rs_script", (void *)&SC_ClearObject, true },
     { "_Z10rsIsObject9rs_script", (void *)&SC_IsObject, true },
 
+    { "_Z11rsSetObjectP7rs_pathS_", (void *)&SC_SetObject, true },
+    { "_Z13rsClearObjectP7rs_path", (void *)&SC_ClearObject, true },
+    { "_Z10rsIsObject7rs_path", (void *)&SC_IsObject, true },
+
     { "_Z11rsSetObjectP7rs_meshS_", (void *)&SC_SetObject, true },
     { "_Z13rsClearObjectP7rs_mesh", (void *)&SC_ClearObject, true },
     { "_Z10rsIsObject7rs_mesh", (void *)&SC_IsObject, true },
@@ -603,6 +614,8 @@
     { "_Z11rsgDrawMesh7rs_meshjjj", (void *)&SC_DrawMeshPrimitiveRange, false },
     { "_Z25rsgMeshComputeBoundingBox7rs_meshPfS0_S0_S0_S0_S0_", (void *)&SC_MeshComputeBoundingBox, false },
 
+    { "_Z11rsgDrawPath7rs_path", (void *)&SC_DrawPath, false },
+
     { "_Z13rsgClearColorffff", (void *)&SC_ClearColor, false },
     { "_Z13rsgClearDepthf", (void *)&SC_ClearDepth, false },
 
diff --git a/libs/rs/rs.spec b/libs/rs/rs.spec
index 20b1f52..31487f2 100644
--- a/libs/rs/rs.spec
+++ b/libs/rs/rs.spec
@@ -388,3 +388,13 @@
 	param uint32_t *primType
 	ret RsMesh
 	}
+
+PathCreate {
+    param RsPathPrimitive pp
+    param bool isStatic
+    param RsAllocation vertex
+    param RsAllocation loops
+    param float quality
+    ret RsPath
+    }
+
diff --git a/libs/rs/rsContext.h b/libs/rs/rsContext.h
index 199cc5a..31dfd95 100644
--- a/libs/rs/rsContext.h
+++ b/libs/rs/rsContext.h
@@ -32,6 +32,7 @@
 #include "rsAdapter.h"
 #include "rsSampler.h"
 #include "rsFont.h"
+#include "rsPath.h"
 #include "rsProgramFragment.h"
 #include "rsProgramStore.h"
 #include "rsProgramRaster.h"
diff --git a/libs/rs/rsPath.cpp b/libs/rs/rsPath.cpp
new file mode 100644
index 0000000..89a0770
--- /dev/null
+++ b/libs/rs/rsPath.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011 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 "rsContext.h"
+
+using namespace android;
+using namespace android::renderscript;
+
+
+Path::Path(Context *rsc) : ObjectBase(rsc) {
+}
+
+Path::Path(Context *rsc, RsPathPrimitive pp, bool isStatic,
+                      Allocation *vtx, Allocation *loops, float quality)
+: ObjectBase(rsc) {
+
+    memset(&mHal, 0, sizeof(mHal));
+    mHal.state.quality = quality;
+    mHal.state.primitive = pp;
+
+    LOGE("i1");
+    rsc->mHal.funcs.path.initStatic(rsc, this, vtx, loops);
+
+    LOGE("i2");
+}
+
+Path::Path(Context *rsc, uint32_t vertexBuffersCount, uint32_t primitivesCount)
+: ObjectBase(rsc) {
+
+}
+
+Path::~Path() {
+
+}
+
+
+void Path::rasterize(const BezierSegment_t *s, uint32_t num, Allocation *alloc) {
+
+    for (uint32_t i=0; i < num; i++) {
+
+    }
+
+}
+
+void Path::render(Context *rsc) {
+}
+
+void Path::serialize(OStream *stream) const {
+
+}
+
+RsA3DClassID Path::getClassId() const {
+    return RS_A3D_CLASS_ID_UNKNOWN;
+}
+
+namespace android {
+namespace renderscript {
+
+RsPath rsi_PathCreate(Context *rsc, RsPathPrimitive pp, bool isStatic,
+                      RsAllocation vtx, RsAllocation loops, float quality) {
+    return new Path(rsc, pp, isStatic, (Allocation *)vtx, (Allocation *)loops, quality);
+}
+
+}
+}
diff --git a/libs/rs/rsPath.h b/libs/rs/rsPath.h
new file mode 100644
index 0000000..dac795e
--- /dev/null
+++ b/libs/rs/rsPath.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2011 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 ANDROID_RS_PATH_H
+#define ANDROID_RS_PATH_H
+
+
+#include "RenderScript.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+namespace renderscript {
+
+class Path : public ObjectBase {
+public:
+    struct {
+        mutable void * drv;
+
+        struct State {
+            RsPathPrimitive primitive;
+            float quality;
+        };
+        State state;
+    } mHal;
+
+    Path(Context *);
+    Path(Context *, uint32_t vertexBuffersCount, uint32_t primitivesCount);
+    Path(Context *, RsPathPrimitive pp, bool isStatic, Allocation *vtx, Allocation *loop, float q);
+
+    ~Path();
+
+    void render(Context *);
+    virtual void serialize(OStream *stream) const;
+    virtual RsA3DClassID getClassId() const;
+
+private:
+
+
+    typedef struct {
+        float x[4];
+        float y[4];
+    } BezierSegment_t;
+
+    bool subdivideCheck(const BezierSegment_t *s, float u1, float u2);
+
+    void rasterize(const BezierSegment_t *s, uint32_t num, Allocation *alloc);
+
+
+};
+
+}
+}
+#endif //ANDROID_RS_PATH_H
+
+
+
diff --git a/libs/rs/rsRuntime.h b/libs/rs/rsRuntime.h
index cb962a8..b0869f6 100644
--- a/libs/rs/rsRuntime.h
+++ b/libs/rs/rsRuntime.h
@@ -68,6 +68,7 @@
 void rsrDrawSpriteScreenspace(Context *, Script *,
                               float x, float y, float z, float w, float h);
 void rsrDrawRect(Context *, Script *, float x1, float y1, float x2, float y2, float z);
+void rsrDrawPath(Context *, Script *, Path *);
 void rsrDrawMesh(Context *, Script *, Mesh *);
 void rsrDrawMeshPrimitive(Context *, Script *, Mesh *, uint32_t primIndex);
 void rsrDrawMeshPrimitiveRange(Context *, Script *, Mesh *,
diff --git a/libs/rs/rsScriptC_LibGL.cpp b/libs/rs/rsScriptC_LibGL.cpp
index 7862f3c..ce2e1f2 100644
--- a/libs/rs/rsScriptC_LibGL.cpp
+++ b/libs/rs/rsScriptC_LibGL.cpp
@@ -195,6 +195,14 @@
     rsrDrawQuad(rsc, sc, x1, y2, z, x2, y2, z, x2, y1, z, x1, y1, z);
 }
 
+void rsrDrawPath(Context *rsc, Script *sc, Path *sm) {
+    CHECK_OBJ(sm);
+    if (!rsc->setupCheck()) {
+        return;
+    }
+    sm->render(rsc);
+}
+
 void rsrDrawMesh(Context *rsc, Script *sc, Mesh *sm) {
     CHECK_OBJ(sm);
     if (!rsc->setupCheck()) {
diff --git a/libs/rs/rs_hal.h b/libs/rs/rs_hal.h
index b8d7351..a5df600 100644
--- a/libs/rs/rs_hal.h
+++ b/libs/rs/rs_hal.h
@@ -29,6 +29,7 @@
 class Allocation;
 class Script;
 class ScriptC;
+class Path;
 class Program;
 class ProgramStore;
 class ProgramRaster;
@@ -189,6 +190,13 @@
     } mesh;
 
     struct {
+        bool (*initStatic)(const Context *rsc, const Path *m, const Allocation *vtx, const Allocation *loops);
+        bool (*initDynamic)(const Context *rsc, const Path *m);
+        void (*draw)(const Context *rsc, const Path *m);
+        void (*destroy)(const Context *rsc, const Path *m);
+    } path;
+
+    struct {
         bool (*init)(const Context *rsc, const Sampler *m);
         void (*destroy)(const Context *rsc, const Sampler *m);
     } sampler;
diff --git a/libs/rs/scriptc/rs_graphics.rsh b/libs/rs/scriptc/rs_graphics.rsh
index 2581953..06a2772 100644
--- a/libs/rs/scriptc/rs_graphics.rsh
+++ b/libs/rs/scriptc/rs_graphics.rsh
@@ -288,6 +288,9 @@
 extern void __attribute__((overloadable))
     rsgDrawSpriteScreenspace(float x, float y, float z, float w, float h);
 
+extern void __attribute__((overloadable))
+    rsgDrawPath(rs_path p);
+
 /**
  * Draw a mesh using the current context state.  The whole mesh is
  * rendered.
diff --git a/libs/rs/scriptc/rs_object.rsh b/libs/rs/scriptc/rs_object.rsh
index a431219..1fc3f83 100644
--- a/libs/rs/scriptc/rs_object.rsh
+++ b/libs/rs/scriptc/rs_object.rsh
@@ -56,6 +56,11 @@
  * \overload
  */
 extern void __attribute__((overloadable))
+    rsSetObject(rs_path *dst, rs_path src);
+/**
+ * \overload
+ */
+extern void __attribute__((overloadable))
     rsSetObject(rs_mesh *dst, rs_mesh src);
 /**
  * \overload
@@ -114,6 +119,11 @@
  * \overload
  */
 extern void __attribute__((overloadable))
+    rsClearObject(rs_path *dst);
+/**
+ * \overload
+ */
+extern void __attribute__((overloadable))
     rsClearObject(rs_mesh *dst);
 /**
  * \overload
@@ -175,6 +185,11 @@
  * \overload
  */
 extern bool __attribute__((overloadable))
+    rsIsObject(rs_path);
+/**
+ * \overload
+ */
+extern bool __attribute__((overloadable))
     rsIsObject(rs_mesh);
 /**
  * \overload
diff --git a/libs/rs/scriptc/rs_types.rsh b/libs/rs/scriptc/rs_types.rsh
index e9c3c5e..28b7bf5 100644
--- a/libs/rs/scriptc/rs_types.rsh
+++ b/libs/rs/scriptc/rs_types.rsh
@@ -138,6 +138,12 @@
  */
 typedef struct { const int* const p; } __attribute__((packed, aligned(4))) rs_mesh;
 /**
+ * \brief Opaque handle to a Renderscript Path object.
+ *
+ * See: android.renderscript.Path
+ */
+typedef struct { const int* const p; } __attribute__((packed, aligned(4))) rs_path;
+/**
  * \brief Opaque handle to a Renderscript ProgramFragment object.
  *
  * See: android.renderscript.ProgramFragment