/**
loads specified mesh from file. If loading of 3 uvs is selected then layer of atlas is
*/
InternalMeshInfo ModelLoader::load(const std::string &name){
if(not scene){
error("No scene for ModelLoader");
hardPause();
return {};
}
InternalMeshInfo info {(u32)vertex.size(), (u32)texcoord.size(), (u32)normal.size(), (u32)tangent.size(), (u32)indices.size()};
auto meshes = find(name);
if(meshes.empty()){
error("no mesh:", name);
return {};
}
for(auto mesh : meshes){
InternalMeshInfo subinfo {(u32)vertex.size(), (u32)texcoord.size(), (u32)normal.size(), (u32)tangent.size(), (u32)indices.size()};
copyIndices(mesh);
copyVertices(mesh);
copyTexcoords(mesh);
copyNormals(mesh);
copyTangents(mesh);
info.count = indices.size() - info.iID;
info.vertexCount = (vertex.size() - info.vID)/4;
subinfo.count = indices.size() - subinfo.iID;
subinfo.vertexCount = (vertex.size() - subinfo.vID)/4;
if(getLayer) setTextureLayer(subinfo, getLayer(getTextureName(mesh)));
}
return info;
}
GLenum IndexDataManager::prepareIndexData(GLenum type, GLsizei count, Buffer *buffer, const void *indices, TranslatedIndexData *translated)
{
if(!mStreamingBuffer)
{
return GL_OUT_OF_MEMORY;
}
intptr_t offset = reinterpret_cast<intptr_t>(indices);
if(buffer != NULL)
{
if(typeSize(type) * count + offset > static_cast<std::size_t>(buffer->size()))
{
return GL_INVALID_OPERATION;
}
indices = static_cast<const GLubyte*>(buffer->data()) + offset;
}
StreamingIndexBuffer *streamingBuffer = mStreamingBuffer;
sw::Resource *staticBuffer = buffer ? buffer->getResource() : NULL;
if(staticBuffer)
{
computeRange(type, indices, count, &translated->minIndex, &translated->maxIndex);
translated->indexBuffer = staticBuffer;
translated->indexOffset = offset;
}
else
{
unsigned int streamOffset = 0;
int convertCount = count;
streamingBuffer->reserveSpace(convertCount * typeSize(type), type);
void *output = streamingBuffer->map(typeSize(type) * convertCount, &streamOffset);
if(output == NULL)
{
ERR("Failed to map index buffer.");
return GL_OUT_OF_MEMORY;
}
copyIndices(type, staticBuffer ? buffer->data() : indices, convertCount, output);
streamingBuffer->unmap();
computeRange(type, indices, count, &translated->minIndex, &translated->maxIndex);
translated->indexBuffer = streamingBuffer->getResource();
translated->indexOffset = streamOffset;
}
return GL_NO_ERROR;
}