Method CommitIndices

Sources/nCine/Graphics/Geometry.cpp:246–267

	}

	void Geometry::CommitIndices()
	{
		if (hostIndexPointer_ != nullptr && hasDirtyIndices_) {
			// Checking if the common IBO is allowed to use mapping and do the same for the custom one
			const GLenum mapFlags = RenderResources::GetBuffersManager().Specs(RenderBuffersManager::BufferTypes::ElementArray).mapFlags;

			if (mapFlags == 0 && ibo_ != nullptr) {
				// Using buffer orphaning + `glBufferSubData()` when having a custom IBO with no mapping available
				ibo_->BufferData(iboParams_.size, nullptr, iboUsageFlags_);
				ibo_->BufferSubData(iboParams_.offset, iboParams_.size, hostIndexPointer_);
			} else {
				GLushort* indices = ibo_ ? AcquireIndexPointer() : AcquireIndexPointer(numIndices_);
				memcpy(indices, hostIndexPointer_, numIndices_ * sizeof(GLushort));
				ReleaseIndexPointer();
			}

			// The dirty flag is only useful with a custom IBO. If the render command uses the common one, it must always copy indices.
			if (ibo_ != nullptr) {
				hasDirtyIndices_ = false;
			}
		}
	}
}