Add the Renderscript library. (Not in the build by default yet.)

This library can be used to create animated 3D User Interfaces.

This library is currently under heavy development, so it's not part of
the build by default.

In order to build this library, you must define

   BUILD_RENDERSCRIPT=true

in your build environment.

You will also have to manually edit

 build/core/prelink-linux-arm.map

And add libRS and libRS_jni at the end like this (exact address may change.)

libRS.so                0x9A100000
libRS_jni.so            0x9A000000

1 files changed, 299 insertions, 0 deletions

diff --git a/libs/rs/rsTriangleMesh.cpp b/libs/rs/rsTriangleMesh.cpp
new file mode 100644
index 0000000..6595ebc
--- /dev/null
+++ b/libs/rs/rsTriangleMesh.cpp
@@ -0,0 +1,299 @@
+/*
+ * Copyright (C) 2009 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;
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+#include <utils/Log.h>
+
+TriangleMesh::TriangleMesh()
+{
+    mVertexElement = NULL;
+    mIndexElement = NULL;
+    mVertexData = NULL;
+    mIndexData = NULL;
+    mTriangleCount = 0;
+    mVertexDataSize = 0;
+    mIndexDataSize = 0;
+
+    mBufferObjects[0] = 0;
+    mBufferObjects[1] = 0;
+
+    mOffsetCoord = 0;
+    mOffsetTex = 0;
+    mOffsetNorm = 0;
+
+    mSizeCoord = 0;
+    mSizeTex = 0;
+    mSizeNorm = 0;
+
+}
+
+TriangleMesh::~TriangleMesh()
+{
+    free(mVertexData);
+    free(mIndexData);
+}
+
+
+
+TriangleMeshContext::TriangleMeshContext()
+{
+    clear();
+}
+
+TriangleMeshContext::~TriangleMeshContext()
+{
+}
+
+void TriangleMeshContext::clear()
+{
+    mVertexElement = NULL;
+    mVertexSizeBits = 0;
+    mIndexElement = NULL;
+    mIndexSizeBits = 0;
+    mTriangleCount = 0;
+    mVertexData.clear();
+    mIndexData.clear();
+}
+
+void TriangleMesh::analyzeElement()
+{
+    for (uint32_t ct=0; ct < mVertexElement->getComponentCount(); ct++) {
+        const Component *c = mVertexElement->getComponent(ct);
+
+        if (c->getKind() == Component::X) {
+            rsAssert(mSizeCoord == 0);
+            mSizeCoord = 1;
+            mOffsetCoord = ct;
+        }
+        if (c->getKind() == Component::Y) {
+            rsAssert(mSizeCoord == 1);
+            mSizeCoord = 2;
+        }
+        if (c->getKind() == Component::Z) {
+            rsAssert(mSizeCoord == 2);
+            mSizeCoord = 3;
+        }
+        if (c->getKind() == Component::W) {
+            rsAssert(mSizeCoord == 4);
+            mSizeCoord = 4;
+        }
+
+        if (c->getKind() == Component::NX) {
+            rsAssert(mSizeNorm == 0);
+            mSizeNorm = 1;
+            mOffsetNorm = ct;
+        }
+        if (c->getKind() == Component::NY) {
+            rsAssert(mSizeNorm == 1);
+            mSizeNorm = 2;
+        }
+        if (c->getKind() == Component::NZ) {
+            rsAssert(mSizeNorm == 2);
+            mSizeNorm = 3;
+        }
+
+        if (c->getKind() == Component::S) {
+            rsAssert(mSizeTex == 0);
+            mSizeTex = 1;
+            mOffsetTex = ct;
+        }
+        if (c->getKind() == Component::T) {
+            rsAssert(mSizeTex == 1);
+            mSizeTex = 2;
+        }
+    }
+    LOGE("TriangleMesh %i,%i  %i,%i  %i,%i", mSizeCoord, mOffsetCoord, mSizeNorm, mOffsetNorm, mSizeTex, mOffsetTex);
+
+}
+
+
+namespace android {
+namespace renderscript {
+
+void rsi_TriangleMeshBegin(Context *rsc, RsElement vertex, RsElement index)
+{
+    //LOGE("tmb  %p %p", vertex, index);
+    TriangleMeshContext *tmc = &rsc->mStateTriangleMesh;
+
+    tmc->clear();
+    tmc->mVertexElement = static_cast<Element *>(vertex);
+    tmc->mVertexSizeBits = tmc->mVertexElement->getSizeBits();
+    tmc->mIndexElement = static_cast<Element *>(index);
+    tmc->mIndexSizeBits = tmc->mIndexElement->getSizeBits();
+
+    //LOGE("Element sizes  %i  %i", tmc->mVertexSizeBits, tmc->mIndexSizeBits);
+
+    assert(!(tmc->mVertexSizeBits & 0x7));
+    assert(!(tmc->mIndexSizeBits & 0x7));
+}
+
+void rsi_TriangleMeshAddVertex(Context *rsc, const void *data)
+{
+    TriangleMeshContext *tmc = &rsc->mStateTriangleMesh;
+
+    // todo: Make this efficient.
+    for (uint32_t ct = 0; (ct * 8) < tmc->mVertexSizeBits; ct++) {
+        tmc->mVertexData.add(static_cast<const uint8_t *>(data) [ct]);
+    }
+}
+
+void rsi_TriangleMeshAddTriangle(Context *rsc, uint32_t idx1, uint32_t idx2, uint32_t idx3)
+{
+    TriangleMeshContext *tmc = &rsc->mStateTriangleMesh;
+
+    // todo: Make this efficient.
+    switch(tmc->mIndexSizeBits) {
+    case 16:
+        tmc->mIndexData.add(idx1);
+        tmc->mIndexData.add(idx2);
+        tmc->mIndexData.add(idx3);
+        break;
+    default:
+        assert(0);
+    }
+
+    tmc->mTriangleCount++;
+}
+
+RsTriangleMesh rsi_TriangleMeshCreate(Context *rsc)
+{
+    TriangleMeshContext *tmc = &rsc->mStateTriangleMesh;
+
+    TriangleMesh * tm = new TriangleMesh();
+    if (!tm) {
+        LOGE("rsTriangleMeshCreate: Error OUT OF MEMORY");
+        // error
+        return 0;
+    }
+
+    tm->mTriangleCount = tmc->mTriangleCount;
+    tm->mIndexDataSize = tmc->mIndexData.size() * tmc->mIndexSizeBits >> 3;
+    tm->mVertexDataSize = tmc->mVertexData.size();
+    tm->mIndexElement = tmc->mIndexElement;
+    tm->mVertexElement = tmc->mVertexElement;
+
+    tm->mIndexData = malloc(tm->mIndexDataSize);
+    tm->mVertexData = malloc(tm->mVertexDataSize);
+    if (!tm->mIndexData || !tm->mVertexData) {
+        LOGE("rsTriangleMeshCreate: Error OUT OF MEMORY");
+        delete tm;
+        return 0;
+    }
+
+    LOGE("Create mesh, triangleCount %i", tm->mTriangleCount);
+
+    memcpy(tm->mVertexData, tmc->mVertexData.array(), tm->mVertexDataSize);
+    memcpy(tm->mIndexData, tmc->mIndexData.array(), tm->mIndexDataSize);
+    tm->analyzeElement();
+
+    return tm;
+}
+
+void rsi_TriangleMeshDestroy(Context *rsc, RsTriangleMesh vtm)
+{
+    TriangleMeshContext *tmc = &rsc->mStateTriangleMesh;
+    TriangleMesh * tm = static_cast<TriangleMesh *>(vtm);
+
+    free(tm->mIndexData);
+    free(tm->mVertexData);
+    delete tm;
+}
+
+
+
+void rsi_TriangleMeshRenderRange(Context *rsc, RsTriangleMesh vtm, uint32_t first, uint32_t count)
+{
+    TriangleMesh * tm = static_cast<TriangleMesh *>(vtm);
+
+    rsc->setupCheck();
+
+    //LOGE("1  %p   ", vtm);
+    //LOGE("1.1  %p   %p", tm->mVertexData,  tm->mIndexData);
+    if (!tm->mBufferObjects[0]) {
+        glGenBuffers(2, &tm->mBufferObjects[0]);
+
+        glBindBuffer(GL_ARRAY_BUFFER, tm->mBufferObjects[0]);
+        glBufferData(GL_ARRAY_BUFFER, tm->mVertexDataSize, tm->mVertexData, GL_STATIC_DRAW);
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, tm->mBufferObjects[1]);
+        glBufferData(GL_ELEMENT_ARRAY_BUFFER, tm->mIndexDataSize, tm->mIndexData, GL_STATIC_DRAW);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+    }
+
+    //LOGE("1.2");
+    if (first >= tm->mTriangleCount) {
+        return;
+    }
+    if (count >= (tm->mTriangleCount - first)) {
+        count = tm->mTriangleCount - first;
+    }
+    if (!count) {
+        return;
+    }
+
+    const float *f = (const float *)tm->mVertexData;
+
+    //LOGE("2");
+    glBindBuffer(GL_ARRAY_BUFFER, tm->mBufferObjects[0]);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, tm->mBufferObjects[1]);
+
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glVertexPointer(tm->mSizeCoord, 
+                    GL_FLOAT, 
+                    tm->mVertexElement->getSizeBytes(), 
+                    (void *)tm->mVertexElement->getComponentOffsetBytes(tm->mOffsetCoord));
+
+    if (tm->mSizeTex) {
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+        glTexCoordPointer(tm->mSizeTex, 
+                          GL_FLOAT, 
+                          tm->mVertexElement->getSizeBytes(), 
+                          (void *)tm->mVertexElement->getComponentOffsetBytes(tm->mOffsetTex));
+    } else {
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    }
+
+    if (tm->mSizeNorm) {
+        glEnableClientState(GL_NORMAL_ARRAY);
+        glNormalPointer(GL_FLOAT, 
+                        tm->mVertexElement->getSizeBytes(), 
+                        (void *)tm->mVertexElement->getComponentOffsetBytes(tm->mOffsetNorm));
+    } else {
+        glDisableClientState(GL_NORMAL_ARRAY);
+    }
+
+    glDrawElements(GL_TRIANGLES, count * 3, GL_UNSIGNED_SHORT, (GLvoid *)(first * 3 * 2));
+
+    //LOGE("4");
+
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+}
+
+void rsi_TriangleMeshRender(Context *rsc, RsTriangleMesh vtm)
+{
+    rsi_TriangleMeshRenderRange(rsc, vtm, 0, 0xffffff);
+}
+
+}}