void Renderer::visitTransparentRenderQueue(const TransparentRenderQueue& queue)
{
// do not batch for transparent objects
ssize_t size = queue.size();
_batchedCommands.clear();
_filledVertex = 0;
_filledIndex = 0;
for (ssize_t index = 0; index < size; ++index)
{
auto command = queue[index];
auto commandType = command->getType();
if( RenderCommand::Type::TRIANGLES_COMMAND == commandType)
{
auto cmd = static_cast<TrianglesCommand*>(command);
_batchedCommands.push_back(cmd);
fillVerticesAndIndices(cmd);
drawBatchedTriangles();
}
else if(RenderCommand::Type::QUAD_COMMAND == commandType)
{
auto cmd = static_cast<QuadCommand*>(command);
_batchQuadCommands.push_back(cmd);
fillQuads(cmd);
drawBatchedQuads();
}
else if(RenderCommand::Type::GROUP_COMMAND == commandType)
{
int renderQueueID = (static_cast<GroupCommand*>(command))->getRenderQueueID();
visitRenderQueue(_renderGroups[renderQueueID]);
}
else if(RenderCommand::Type::CUSTOM_COMMAND == commandType)
{
auto cmd = static_cast<CustomCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::BATCH_COMMAND == commandType)
{
auto cmd = static_cast<BatchCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::PRIMITIVE_COMMAND == commandType)
{
auto cmd = static_cast<PrimitiveCommand*>(command);
cmd->execute();
}
else if (RenderCommand::Type::MESH_COMMAND == commandType)
{
auto cmd = static_cast<MeshCommand*>(command);
cmd->execute();
}
else
{
CCLOGERROR("Unknown commands in renderQueue");
}
}
}
void Renderer::processRenderCommand(RenderCommand* command)
{
auto commandType = command->getType();
if( RenderCommand::Type::TRIANGLES_COMMAND == commandType)
{
//Draw if we have batched other commands which are not triangle command
flush3D();
flushQuads();
//Process triangle command
auto cmd = static_cast<TrianglesCommand*>(command);
//Draw batched Triangles if necessary
if(cmd->isSkipBatching() || _filledVertex + cmd->getVertexCount() > VBO_SIZE || _filledIndex + cmd->getIndexCount() > INDEX_VBO_SIZE)
{
CCASSERT(cmd->getVertexCount()>= 0 && cmd->getVertexCount() < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
CCASSERT(cmd->getIndexCount()>= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE, "VBO for index is not big enough, please break the data down or use customized render command");
//Draw batched Triangles if VBO is full
drawBatchedTriangles();
}
//Batch Triangles
_batchedCommands.push_back(cmd);
fillVerticesAndIndices(cmd);
if(cmd->isSkipBatching())
{
drawBatchedTriangles();
}
}
else if ( RenderCommand::Type::QUAD_COMMAND == commandType )
{
//Draw if we have batched other commands which are not quad command
flush3D();
flushTriangles();
//Process quad command
auto cmd = static_cast<QuadCommand*>(command);
//Draw batched quads if necessary
if(cmd->isSkipBatching()|| (_numberQuads + cmd->getQuadCount()) * 4 > VBO_SIZE )
{
CCASSERT(cmd->getQuadCount()>= 0 && cmd->getQuadCount() * 4 < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
//Draw batched quads if VBO is full
drawBatchedQuads();
}
//Batch Quads
_batchQuadCommands.push_back(cmd);
fillQuads(cmd);
if(cmd->isSkipBatching())
{
drawBatchedQuads();
}
}
else if (RenderCommand::Type::MESH_COMMAND == commandType)
{
flush2D();
auto cmd = static_cast<MeshCommand*>(command);
if (cmd->isSkipBatching() || _lastBatchedMeshCommand == nullptr || _lastBatchedMeshCommand->getMaterialID() != cmd->getMaterialID())
{
flush3D();
if(cmd->isSkipBatching())
{
// XXX: execute() will call bind() and unbind()
// but unbind() shouldn't be call if the next command is a MESH_COMMAND with Material.
// Once most of cocos2d-x moves to Pass/StateBlock, only bind() should be used.
cmd->execute();
}
else
{
cmd->preBatchDraw();
cmd->batchDraw();
_lastBatchedMeshCommand = cmd;
}
}
else
{
cmd->batchDraw();
}
}
else if(RenderCommand::Type::GROUP_COMMAND == commandType)
{
flush();
int renderQueueID = ((GroupCommand*) command)->getRenderQueueID();
visitRenderQueue(_renderGroups[renderQueueID]);
}
else if(RenderCommand::Type::CUSTOM_COMMAND == commandType)
{
flush();
auto cmd = static_cast<CustomCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::BATCH_COMMAND == commandType)
{
flush();
auto cmd = static_cast<BatchCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::PRIMITIVE_COMMAND == commandType)
{
flush();
auto cmd = static_cast<PrimitiveCommand*>(command);
cmd->execute();
}
else
{
CCLOGERROR("Unknown commands in renderQueue");
}
}
void Renderer::processRenderCommand(RenderCommand* command)
{
auto commandType = command->getType();
if( RenderCommand::Type::TRIANGLES_COMMAND == commandType)
{
//Draw if we have batched other commands which are not triangle command
flush3D();
flushQuads();
//Process triangle command
auto cmd = static_cast<TrianglesCommand*>(command);
//Draw batched Triangles if necessary
if(cmd->isSkipBatching() || _filledVertex + cmd->getVertexCount() > VBO_SIZE || _filledIndex + cmd->getIndexCount() > INDEX_VBO_SIZE)
{
CCASSERT(cmd->getVertexCount()>= 0 && cmd->getVertexCount() < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
CCASSERT(cmd->getIndexCount()>= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE, "VBO for index is not big enough, please break the data down or use customized render command");
//Draw batched Triangles if VBO is full
drawBatchedTriangles();
}
//Batch Triangles
_batchedCommands.push_back(cmd);
fillVerticesAndIndices(cmd);
if(cmd->isSkipBatching())
{
drawBatchedTriangles();
}
}
else if ( RenderCommand::Type::QUAD_COMMAND == commandType )
{
//Draw if we have batched other commands which are not quad command
flush3D();
flushTriangles();
//Process quad command
auto cmd = static_cast<QuadCommand*>(command);
//Draw batched quads if necessary
if(cmd->isSkipBatching()|| (_numberQuads + cmd->getQuadCount()) * 4 > VBO_SIZE )
{
CCASSERT(cmd->getQuadCount()>= 0 && cmd->getQuadCount() * 4 < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
//Draw batched quads if VBO is full
drawBatchedQuads();
}
//Batch Quads
_batchQuadCommands.push_back(cmd);
fillQuads(cmd);
if(cmd->isSkipBatching())
{
drawBatchedQuads();
}
}
else if (RenderCommand::Type::MESH_COMMAND == commandType)
{
flush2D();
auto cmd = static_cast<MeshCommand*>(command);
if (cmd->isSkipBatching() || _lastBatchedMeshCommand == nullptr || _lastBatchedMeshCommand->getMaterialID() != cmd->getMaterialID())
{
flush3D();
if(cmd->isSkipBatching())
{
cmd->execute();
}
else
{
cmd->preBatchDraw();
cmd->batchDraw();
_lastBatchedMeshCommand = cmd;
}
}
else
{
cmd->batchDraw();
}
}
else if(RenderCommand::Type::GROUP_COMMAND == commandType)
{
flush();
int renderQueueID = ((GroupCommand*) command)->getRenderQueueID();
visitRenderQueue(_renderGroups[renderQueueID]);
}
else if(RenderCommand::Type::CUSTOM_COMMAND == commandType)
{
flush();
auto cmd = static_cast<CustomCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::BATCH_COMMAND == commandType)
{
flush();
auto cmd = static_cast<BatchCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::BEGIN_SCISSOR_COMMAND == commandType)
{
flush();
command->execute<BeginScissorCommand>();
}
else if(RenderCommand::Type::END_SCISSOR_COMMAND == commandType)
{
flush();
command->execute<EndScissorCommand>();
}
else if(RenderCommand::Type::BEGIN_STENCIL_COMMAND == commandType)
{
flush();
command->execute<BeginStencilCommand>();
}
else if(RenderCommand::Type::AFTER_STENCIL_COMMAND == commandType)
{
flush();
command->execute<AfterStencilCommand>();
}
else if(RenderCommand::Type::END_STENCIL_COMMAND == commandType)
{
flush();
command->execute<EndStencilCommand>();
}
else
{
CCLOGERROR("Unknown commands in renderQueue");
}
}
void Renderer::visitRenderQueue(const RenderQueue& queue)
{
ssize_t size = queue.size();
for (ssize_t index = 0; index < size; ++index)
{
auto command = queue[index];
auto commandType = command->getType();
if( RenderCommand::Type::TRIANGLES_COMMAND == commandType)
{
flush3D();
if(_numberQuads > 0)
{
drawBatchedQuads();
_lastMaterialID = 0;
}
auto cmd = static_cast<TrianglesCommand*>(command);
//Batch Triangles
if( _filledVertex + cmd->getVertexCount() > VBO_SIZE || _filledIndex + cmd->getIndexCount() > INDEX_VBO_SIZE)
{
CCASSERT(cmd->getVertexCount()>= 0 && cmd->getVertexCount() < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
CCASSERT(cmd->getIndexCount()>= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE, "VBO for index is not big enough, please break the data down or use customized render command");
//Draw batched Triangles if VBO is full
drawBatchedTriangles();
}
_batchedCommands.push_back(cmd);
fillVerticesAndIndices(cmd);
}
else if ( RenderCommand::Type::QUAD_COMMAND == commandType )
{
flush3D();
if(_filledIndex > 0)
{
drawBatchedTriangles();
_lastMaterialID = 0;
}
auto cmd = static_cast<QuadCommand*>(command);
//Batch quads
if( (_numberQuads + cmd->getQuadCount()) * 4 > VBO_SIZE )
{
CCASSERT(cmd->getQuadCount()>= 0 && cmd->getQuadCount() * 4 < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
//Draw batched quads if VBO is full
drawBatchedQuads();
}
_batchQuadCommands.push_back(cmd);
fillQuads(cmd);
}
else if(RenderCommand::Type::GROUP_COMMAND == commandType)
{
flush();
int renderQueueID = ((GroupCommand*) command)->getRenderQueueID();
visitRenderQueue(_renderGroups[renderQueueID]);
}
else if(RenderCommand::Type::CUSTOM_COMMAND == commandType)
{
flush();
auto cmd = static_cast<CustomCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::BATCH_COMMAND == commandType)
{
flush();
auto cmd = static_cast<BatchCommand*>(command);
cmd->execute();
}
else if(RenderCommand::Type::PRIMITIVE_COMMAND == commandType)
{
flush();
auto cmd = static_cast<PrimitiveCommand*>(command);
cmd->execute();
}
else if (RenderCommand::Type::MESH_COMMAND == commandType)
{
flush2D();
auto cmd = static_cast<MeshCommand*>(command);
if (_lastBatchedMeshCommand == nullptr || _lastBatchedMeshCommand->getMaterialID() != cmd->getMaterialID())
{
flush3D();
cmd->preBatchDraw();
cmd->batchDraw();
_lastBatchedMeshCommand = cmd;
}
else
{
cmd->batchDraw();
}
}
else
{
CCLOGERROR("Unknown commands in renderQueue");
}
}
}
void Renderer::drawBatchedTriangles()
{
if(_queuedTriangleCommands.empty())
return;
CCGL_DEBUG_INSERT_EVENT_MARKER("RENDERER_BATCH_TRIANGLES");
_filledVertex = 0;
_filledIndex = 0;
/************** 1: Setup up vertices/indices *************/
_triBatchesToDraw[0].offset = 0;
_triBatchesToDraw[0].indicesToDraw = 0;
_triBatchesToDraw[0].cmd = nullptr;
int batchesTotal = 0;
int prevMaterialID = -1;
bool firstCommand = true;
for(const auto& cmd : _queuedTriangleCommands)
{
auto currentMaterialID = cmd->getMaterialID();
const bool batchable = !cmd->isSkipBatching();
fillVerticesAndIndices(cmd);
// in the same batch ?
if (batchable && (prevMaterialID == currentMaterialID || firstCommand))
{
CC_ASSERT(firstCommand || _triBatchesToDraw[batchesTotal].cmd->getMaterialID() == cmd->getMaterialID() && "argh... error in logic");
_triBatchesToDraw[batchesTotal].indicesToDraw += cmd->getIndexCount();
_triBatchesToDraw[batchesTotal].cmd = cmd;
}
else
{
// is this the first one?
if (!firstCommand) {
batchesTotal++;
_triBatchesToDraw[batchesTotal].offset = _triBatchesToDraw[batchesTotal-1].offset + _triBatchesToDraw[batchesTotal-1].indicesToDraw;
}
_triBatchesToDraw[batchesTotal].cmd = cmd;
_triBatchesToDraw[batchesTotal].indicesToDraw = (int) cmd->getIndexCount();
// is this a single batch ? Prevent creating a batch group then
if (!batchable)
currentMaterialID = -1;
}
// capacity full ?
if (batchesTotal + 1 >= _triBatchesToDrawCapacity) {
_triBatchesToDrawCapacity *= 1.4;
_triBatchesToDraw = (TriBatchToDraw*) realloc(_triBatchesToDraw, sizeof(_triBatchesToDraw[0]) * _triBatchesToDrawCapacity);
}
prevMaterialID = currentMaterialID;
firstCommand = false;
}
batchesTotal++;
/************** 2: Copy vertices/indices to GL objects *************/
auto conf = Configuration::getInstance();
if (conf->supportsShareableVAO() && conf->supportsMapBuffer())
{
//Bind VAO
GL::bindVAO(_buffersVAO);
//Set VBO data
glBindBuffer(GL_ARRAY_BUFFER, _buffersVBO[0]);
// option 1: subdata
// glBufferSubData(GL_ARRAY_BUFFER, sizeof(_quads[0])*start, sizeof(_quads[0]) * n , &_quads[start] );
// option 2: data
// glBufferData(GL_ARRAY_BUFFER, sizeof(_verts[0]) * _filledVertex, _verts, GL_STATIC_DRAW);
// option 3: orphaning + glMapBuffer
// FIXME: in order to work as fast as possible, it must "and the exact same size and usage hints it had before."
// source: https://www.opengl.org/wiki/Buffer_Object_Streaming#Explicit_multiple_buffering
// so most probably we won't have any benefit of using it
glBufferData(GL_ARRAY_BUFFER, sizeof(_verts[0]) * _filledVertex, nullptr, GL_STATIC_DRAW);
void *buf = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
memcpy(buf, _verts, sizeof(_verts[0]) * _filledVertex);
glUnmapBuffer(GL_ARRAY_BUFFER);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffersVBO[1]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(_indices[0]) * _filledIndex, _indices, GL_STATIC_DRAW);
}
else
{
// Client Side Arrays
#define kQuadSize sizeof(_verts[0])
glBindBuffer(GL_ARRAY_BUFFER, _buffersVBO[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(_verts[0]) * _filledVertex , _verts, GL_DYNAMIC_DRAW);
GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POS_COLOR_TEX);
// vertices
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof(V3F_C4B_T2F, vertices));
// colors
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, kQuadSize, (GLvoid*) offsetof(V3F_C4B_T2F, colors));
// tex coords
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORD, 2, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof(V3F_C4B_T2F, texCoords));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffersVBO[1]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(_indices[0]) * _filledIndex, _indices, GL_STATIC_DRAW);
}
/************** 3: Draw *************/
for (int i=0; i<batchesTotal; ++i)
{
CC_ASSERT(_triBatchesToDraw[i].cmd && "Invalid batch");
_triBatchesToDraw[i].cmd->useMaterial();
glDrawElements(GL_TRIANGLES, (GLsizei) _triBatchesToDraw[i].indicesToDraw, GL_UNSIGNED_SHORT, (GLvoid*) (_triBatchesToDraw[i].offset*sizeof(_indices[0])) );
_drawnBatches++;
_drawnVertices += _triBatchesToDraw[i].indicesToDraw;
}
/************** 4: Cleanup *************/
if (Configuration::getInstance()->supportsShareableVAO())
{
//Unbind VAO
GL::bindVAO(0);
}
else
{
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
_queuedTriangleCommands.clear();
_filledVertex = 0;
_filledIndex = 0;
}
