C++ Allocation::sendDirty方法代码示例

// Avoid having to reallocate memory and render quad by quad
void FontState::initVertexArrayBuffers() {
    // Now lets write index data
    ObjectBaseRef<const Element> indexElem = Element::createRef(mRSC, RS_TYPE_UNSIGNED_16, RS_KIND_USER, false, 1);
    uint32_t numIndicies = mMaxNumberOfQuads * 6;
    ObjectBaseRef<Type> indexType = Type::getTypeRef(mRSC, indexElem.get(), numIndicies, 0, 0, false, false, 0);

    Allocation *indexAlloc = Allocation::createAllocation(mRSC, indexType.get(),
                                                          RS_ALLOCATION_USAGE_SCRIPT |
                                                          RS_ALLOCATION_USAGE_GRAPHICS_VERTEX);
    uint16_t *indexPtr = (uint16_t*)mRSC->mHal.funcs.allocation.lock1D(mRSC, indexAlloc);

    // Four verts, two triangles , six indices per quad
    for (uint32_t i = 0; i < mMaxNumberOfQuads; i ++) {
        int32_t i6 = i * 6;
        int32_t i4 = i * 4;

        indexPtr[i6 + 0] = i4 + 0;
        indexPtr[i6 + 1] = i4 + 1;
        indexPtr[i6 + 2] = i4 + 2;

        indexPtr[i6 + 3] = i4 + 0;
        indexPtr[i6 + 4] = i4 + 2;
        indexPtr[i6 + 5] = i4 + 3;
    }

    indexAlloc->sendDirty(mRSC);

    ObjectBaseRef<const Element> posElem = Element::createRef(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3);
    ObjectBaseRef<const Element> texElem = Element::createRef(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 2);

    const char *ebn1[] = { "position", "texture0" };
    const Element *ebe1[] = {posElem.get(), texElem.get()};
    ObjectBaseRef<const Element> vertexDataElem = Element::create(mRSC, 2, ebe1, ebn1);

    ObjectBaseRef<Type> vertexDataType = Type::getTypeRef(mRSC, vertexDataElem.get(),
                                                          mMaxNumberOfQuads * 4,
                                                          0, 0, false, false, 0);

    Allocation *vertexAlloc = Allocation::createAllocation(mRSC, vertexDataType.get(),
                                                           RS_ALLOCATION_USAGE_SCRIPT);
    mTextMeshPtr = (float*)mRSC->mHal.funcs.allocation.lock1D(mRSC, vertexAlloc);

    mMesh.set(new Mesh(mRSC, 1, 1));
    mMesh->setVertexBuffer(vertexAlloc, 0);
    mMesh->setPrimitive(indexAlloc, RS_PRIMITIVE_TRIANGLE, 0);
    mMesh->init();
    mRSC->mHal.funcs.allocation.unlock1D(mRSC, indexAlloc);
    mRSC->mHal.funcs.allocation.unlock1D(mRSC, vertexAlloc);
}

RsAllocation rsi_AllocationCreateFromBitmap(Context *rsc, RsType vtype,
                                            RsAllocationMipmapControl mips,
                                            const void *data, size_t data_length, uint32_t usages) {
    Type *t = static_cast<Type *>(vtype);

    RsAllocation vTexAlloc = rsi_AllocationCreateTyped(rsc, vtype, mips, usages);
    Allocation *texAlloc = static_cast<Allocation *>(vTexAlloc);
    if (texAlloc == NULL) {
        ALOGE("Memory allocation failure");
        return NULL;
    }

    memcpy(texAlloc->getPtr(), data, t->getDimX() * t->getDimY() * t->getElementSizeBytes());
    if (mips == RS_ALLOCATION_MIPMAP_FULL) {
        AllocationGenerateScriptMips(rsc, texAlloc);
    }

    texAlloc->sendDirty(rsc);
    return texAlloc;
}

RsAllocation rsi_AllocationCreateFromBitmap(Context *rsc, RsType vtype,
                                            RsAllocationMipmapControl mipmaps,
                                            const void *data, size_t sizeBytes, uint32_t usages) {
    Type *t = static_cast<Type *>(vtype);

    RsAllocation vTexAlloc = rsi_AllocationCreateTyped(rsc, vtype, mipmaps, usages, 0);
    Allocation *texAlloc = static_cast<Allocation *>(vTexAlloc);
    if (texAlloc == nullptr) {
        ALOGE("Memory allocation failure");
        return nullptr;
    }

    texAlloc->data(rsc, 0, 0, 0, RS_ALLOCATION_CUBEMAP_FACE_POSITIVE_X,
                   t->getDimX(), t->getDimY(), data, sizeBytes, 0);
    if (mipmaps == RS_ALLOCATION_MIPMAP_FULL) {
        rsc->mHal.funcs.allocation.generateMipmaps(rsc, texAlloc);
    }

    texAlloc->sendDirty(rsc);
    return texAlloc;
}

RsAllocation rsi_AllocationCubeCreateFromBitmap(Context *rsc, RsType vtype,
                                                RsAllocationMipmapControl mips,
                                                const void *data, size_t data_length, uint32_t usages) {
    Type *t = static_cast<Type *>(vtype);

    // Cubemap allocation's faces should be Width by Width each.
    // Source data should have 6 * Width by Width pixels
    // Error checking is done in the java layer
    RsAllocation vTexAlloc = rsi_AllocationCreateTyped(rsc, vtype, mips, usages);
    Allocation *texAlloc = static_cast<Allocation *>(vTexAlloc);
    if (texAlloc == NULL) {
        ALOGE("Memory allocation failure");
        return NULL;
    }

    uint32_t faceSize = t->getDimX();
    uint32_t strideBytes = faceSize * 6 * t->getElementSizeBytes();
    uint32_t copySize = faceSize * t->getElementSizeBytes();

    uint8_t *sourcePtr = (uint8_t*)data;
    for (uint32_t face = 0; face < 6; face ++) {
        Adapter2D faceAdapter(rsc, texAlloc);
        faceAdapter.setFace(face);

        for (uint32_t dI = 0; dI < faceSize; dI ++) {
            memcpy(faceAdapter.getElement(0, dI), sourcePtr + strideBytes * dI, copySize);
        }

        // Move the data pointer to the next cube face
        sourcePtr += copySize;
    }

    if (mips == RS_ALLOCATION_MIPMAP_FULL) {
        AllocationGenerateScriptMips(rsc, texAlloc);
    }

    texAlloc->sendDirty(rsc);
    return texAlloc;
}

RsAllocation rsi_AllocationCubeCreateFromBitmap(Context *rsc, RsType vtype,
                                                RsAllocationMipmapControl mipmaps,
                                                const void *data, size_t sizeBytes, uint32_t usages) {
    Type *t = static_cast<Type *>(vtype);

    // Cubemap allocation's faces should be Width by Width each.
    // Source data should have 6 * Width by Width pixels
    // Error checking is done in the java layer
    RsAllocation vTexAlloc = rsi_AllocationCreateTyped(rsc, vtype, mipmaps, usages, 0);
    Allocation *texAlloc = static_cast<Allocation *>(vTexAlloc);
    if (texAlloc == nullptr) {
        ALOGE("Memory allocation failure");
        return nullptr;
    }

    uint32_t faceSize = t->getDimX();
    uint32_t strideBytes = faceSize * 6 * t->getElementSizeBytes();
    uint32_t copySize = faceSize * t->getElementSizeBytes();

    uint8_t *sourcePtr = (uint8_t*)data;
    for (uint32_t face = 0; face < 6; face ++) {
        for (uint32_t dI = 0; dI < faceSize; dI ++) {
            texAlloc->data(rsc, 0, dI, 0, (RsAllocationCubemapFace)face,
                           t->getDimX(), 1, sourcePtr + strideBytes * dI, copySize, 0);
        }

        // Move the data pointer to the next cube face
        sourcePtr += copySize;
    }

    if (mipmaps == RS_ALLOCATION_MIPMAP_FULL) {
        rsc->mHal.funcs.allocation.generateMipmaps(rsc, texAlloc);
    }

    texAlloc->sendDirty(rsc);
    return texAlloc;
}

void rsi_AllocationSyncAll(Context *rsc, RsAllocation va, RsAllocationUsageType src) {
    Allocation *a = static_cast<Allocation *>(va);
    a->sendDirty(rsc);
    a->syncAll(rsc, src);
}