void Shader::processShader(StreamReader* reader, const char* endtag, ByteArray* soureCode)
{
while (!reader->endOfStream())
{
ByteArray* line = reader->readLineToBytes();
if (line)
{
line->trim();
if (line->equals(endtag))
{
return;
}
else if (line->equals("[GLSL]"))
{
while (!reader->endOfStream())
{
ByteArray* line = reader->readLineToBytes();
if (line)
{
line->trim();
if (line->equals("[/GLSL]"))
{
break;
}
else
{
soureCode->append(line->cstr());
}
}
}
}
}
}
}
void Shader::load(StreamReader* reader)
{
DebugLog::print("Parsing shader...");
reader->retain();
while (!reader->endOfStream())
{
ByteArray* line = reader->readLineToBytes();
if (line)
{
line->trim();
if (line->equals("[EFFECT]"))
{
processEffectInfo(reader);
}
else if (line->equals("[VERTEXSHADER]"))
{
m_strVertexShader = ByteArray::create(false);
processShader(reader, "[/VERTEXSHADER]", m_strVertexShader);
}
else if (line->equals("[FRAGMENTSHADER]"))
{
m_strFragmentShader = ByteArray::create(false);
processShader(reader, "[/FRAGMENTSHADER]", m_strFragmentShader);
}
}
}
DebugLog::print("Compiling shader...");
build();
reader->release();
DebugLog::print("Done!");
}
void Shader::processEffectInfo(StreamReader* reader)
{
while (!reader->endOfStream())
{
ByteArray* line = reader->readLineToBytes();
if (line)
{
line->trim();
if (line->equals("[/EFFECT]"))
{
return;
}
else
{
List* params = line->split(NULL, 0);
if (params->count() >= 2)
{
ByteArray* param0 = (ByteArray*)params->get(0);
ByteArray* param1 = (ByteArray*)params->get(1);
param0->toUpper();
// Name
if (param0->equals("NAME"))
{
m_name = param1;
m_name->retain();
}
// Depth sorting
else if (param0->equals("RENDERQUEUE"))
{
m_renderQueue = parseRenderQueueFromString(param1);
}
// Z-Writing
else if (param0->equals("ZWRITE"))
{
m_isZWriting = param1->equalsIgnoreCase("On");
}
// Face Culling
else if (param0->equals("FACECULL"))
{
m_faceCullingMode = cullModeFromString(param1);
}
else if (param0->equals("ZTEST"))
{
if (param1->equalsIgnoreCase("Off"))
{
m_depthFunc = GL_ALWAYS;
}
else
{
m_depthFunc = depthFuncFromString(param1);
}
}
else if (params->count() >= 3)
{
ByteArray* param2 = (ByteArray*)params->get(2);
if (param0->equals("BLENDING"))
{
m_isAlphaBlending = true;
m_blendingSource = alphaFactorFromString(param1);
m_blendingDest = alphaFactorFromString(param2);
}
else if (param0->equals("ATTRIBUTE") || param0->equals("UNIFORM"))
{
SPVRTPFXUniform uniform;
// Variable name
uniform.sValueName = param1;
param1->retain();
// Semantic index
ByteArray* temp = ByteArray::create(param2->cstr());
if (ByteArray::isNumeric(temp->cstr()[param2->length() - 1]))
{
temp->subString(0, param2->length() - 1);
}
int len = 0;
const SPVRTPFXUniformSemantic* semantics = PVRTPFXSemanticsGetSemanticList();
uniform.nSemantic = 0;
for (int i = 0; i < ePVRTPFX_NumSemantics; ++i)
{
if (temp->equalsIgnoreCase(semantics[i].p))
{
len = (int)strlen(semantics[i].p);
uniform.nSemantic = i;
break;
}
}
uniform.nIdx = len < param2->length() ? param2->cstr()[len] - '0' : 0;
// Location to be retrieve when compiling shader
uniform.nLocation = 0;
m_uniforms->add(uniform);
}
}
}
}
}
}
}
/// Builds an index with payloads in the given Directory and performs different
/// tests to verify the payload encoding
static void encodingTest(const DirectoryPtr& dir) {
PayloadAnalyzerPtr analyzer = newLucene<PayloadAnalyzer>();
IndexWriterPtr writer = newLucene<IndexWriter>(dir, analyzer, true, IndexWriter::MaxFieldLengthLIMITED);
// should be in sync with value in TermInfosWriter
int32_t skipInterval = 16;
int32_t numTerms = 5;
String fieldName = L"f1";
int32_t numDocs = skipInterval + 1;
// create content for the test documents with just a few terms
Collection<TermPtr> terms = generateTerms(fieldName, numTerms);
StringStream sb;
for (Collection<TermPtr>::iterator term = terms.begin(); term != terms.end(); ++term) {
sb << (*term)->text() << L" ";
}
String content = sb.str();
int32_t payloadDataLength = numTerms * numDocs * 2 + numTerms * numDocs * (numDocs - 1) / 2;
ByteArray payloadData = generateRandomData(payloadDataLength);
DocumentPtr d = newLucene<Document>();
d->add(newLucene<Field>(fieldName, content, Field::STORE_NO, Field::INDEX_ANALYZED));
// add the same document multiple times to have the same payload lengths for all
// occurrences within two consecutive skip intervals
int32_t offset = 0;
for (int32_t i = 0; i < 2 * numDocs; ++i) {
analyzer->setPayloadData(fieldName, payloadData, offset, 1);
offset += numTerms;
writer->addDocument(d);
}
// make sure we create more than one segment to test merging
writer->commit();
for (int32_t i = 0; i < numDocs; ++i) {
analyzer->setPayloadData(fieldName, payloadData, offset, i);
offset += i * numTerms;
writer->addDocument(d);
}
writer->optimize();
// flush
writer->close();
// Verify the index
IndexReaderPtr reader = IndexReader::open(dir, true);
ByteArray verifyPayloadData(ByteArray::newInstance(payloadDataLength));
offset = 0;
Collection<TermPositionsPtr> tps = Collection<TermPositionsPtr>::newInstance(numTerms);
for (int32_t i = 0; i < numTerms; ++i) {
tps[i] = reader->termPositions(terms[i]);
}
while (tps[0]->next()) {
for (int32_t i = 1; i < numTerms; ++i) {
tps[i]->next();
}
int32_t freq = tps[0]->freq();
for (int32_t i = 0; i < freq; ++i) {
for (int32_t j = 0; j < numTerms; ++j) {
tps[j]->nextPosition();
tps[j]->getPayload(verifyPayloadData, offset);
offset += tps[j]->getPayloadLength();
}
}
}
for (int32_t i = 0; i < numTerms; ++i) {
tps[i]->close();
}
EXPECT_TRUE(payloadData.equals(verifyPayloadData));
// test lazy skipping
TermPositionsPtr tp = reader->termPositions(terms[0]);
tp->next();
tp->nextPosition();
// now we don't read this payload
tp->nextPosition();
EXPECT_EQ(1, tp->getPayloadLength());
ByteArray payload = tp->getPayload(ByteArray(), 0);
EXPECT_EQ(payload[0], payloadData[numTerms]);
tp->nextPosition();
// we don't read this payload and skip to a different document
tp->skipTo(5);
tp->nextPosition();
EXPECT_EQ(1, tp->getPayloadLength());
payload = tp->getPayload(ByteArray(), 0);
EXPECT_EQ(payload[0], payloadData[5 * numTerms]);
// Test different lengths at skip points
tp->seek(terms[1]);
tp->next();
tp->nextPosition();
EXPECT_EQ(1, tp->getPayloadLength());
tp->skipTo(skipInterval - 1);
tp->nextPosition();
EXPECT_EQ(1, tp->getPayloadLength());
tp->skipTo(2 * skipInterval - 1);
tp->nextPosition();
EXPECT_EQ(1, tp->getPayloadLength());
tp->skipTo(3 * skipInterval - 1);
tp->nextPosition();
EXPECT_EQ(3 * skipInterval - 2 * numDocs - 1, tp->getPayloadLength());
// Test multiple call of getPayload()
tp->getPayload(ByteArray(), 0);
// it is forbidden to call getPayload() more than once without calling nextPosition()
try {
tp->getPayload(ByteArray(), 0);
} catch (IOException& e) {
EXPECT_TRUE(check_exception(LuceneException::IO)(e));
}
reader->close();
// test long payload
analyzer = newLucene<PayloadAnalyzer>();
writer = newLucene<IndexWriter>(dir, analyzer, true, IndexWriter::MaxFieldLengthLIMITED);
String singleTerm = L"lucene";
d = newLucene<Document>();
d->add(newLucene<Field>(fieldName, singleTerm, Field::STORE_NO, Field::INDEX_ANALYZED));
// add a payload whose length is greater than the buffer size of BufferedIndexOutput
payloadData = generateRandomData(2000);
analyzer->setPayloadData(fieldName, payloadData, 100, 1500);
writer->addDocument(d);
writer->optimize();
// flush
writer->close();
reader = IndexReader::open(dir, true);
tp = reader->termPositions(newLucene<Term>(fieldName, singleTerm));
tp->next();
tp->nextPosition();
verifyPayloadData.resize(tp->getPayloadLength());
tp->getPayload(verifyPayloadData, 0);
ByteArray portion(ByteArray::newInstance(1500));
MiscUtils::arrayCopy(payloadData.get(), 100, portion.get(), 0, 1500);
EXPECT_TRUE(portion.equals(verifyPayloadData));
reader->close();
}
