/**
* Allocate the render data necessary to render this node.
*
* This method allocates the Triangles data used by the TrianglesCommand
* in the rendering pipeline.
*/
void PolygonNode::generateRenderData() {
clearRenderData();
allocTriangles(_polygon);
updateColor();
updateTextureCoords();
}
int Layer_D3D::sendDrawCalls()
{
// Sort draw calls per material (shader/texture)
for (std::vector<RenderData>::const_iterator iter = m_renderData.cbegin(); iter != m_renderData.cend(); ++iter)
{
const RenderData &renderData = *iter;
std::vector<MaterialData>::const_iterator matIter = std::find(m_sortedMaterialData.cbegin(), m_sortedMaterialData.cend(), renderData.materialData);
if (matIter == m_sortedMaterialData.cend())
{
m_sortedMaterialData.push_back(renderData.materialData);
}
CallData &callData = m_sortedRenderData[renderData.materialData];
if (renderData.materialData.shader)
{
callData.instances.push_back(renderData.instanceData);
}
if (renderData.primitiveData.drawer)
{
callData.primitives.push_back(renderData.primitiveData);
}
}
GPU_BEGIN_EVENT("Layer_D3D::sendDrawCalls");
for (std::vector<MaterialData>::const_iterator iter = m_sortedMaterialData.cbegin(); iter != m_sortedMaterialData.cend(); ++iter)
{
const MaterialData &material = *iter;
CallData &callData = m_sortedRenderData[material];
UINT instanceCount = callData.instances.size();
if (instanceCount > 0)
{
g_context.m_pDeviceContext->OMSetDepthStencilState(g_context.m_pDepthStencilState, 0);
material.shader->bind();
material.shader->updateUniforms();
material.texture->bind();
if (m_pQuadVertexBuffer->getMaxInstanceCount() < instanceCount)
{
m_pQuadVertexBuffer->resetMaxInstanceCount(instanceCount);
}
m_pQuadVertexBuffer->copyInstanceFromBuffer(callData.instances.data(), sizeof(InstanceData) * instanceCount);
m_pQuadVertexBuffer->copyInstancesToGPU();
m_pQuadVertexBuffer->bind();
g_context.m_pDeviceContext->DrawInstanced(4, instanceCount, 0, 0);
}
// Primitives should go over image sprites
g_context.m_pDeviceContext->OMSetDepthStencilState(g_context.m_pNoDepthTestState, 0);
for (std::vector<PrimitiveData>::const_iterator iter = callData.primitives.cbegin(); iter != callData.primitives.cend(); ++iter)
{
const PrimitiveData &primData = *iter;
if (primData.drawer)
{
primData.drawer->drawAll(primData.offset);
}
}
}
GPU_END_EVENT();
int spriteCount = m_renderData.size();
clearRenderData();
return spriteCount;
}
