2 #include "bufferable.h"
10 Bufferable::Bufferable(Bufferable &&other):
13 next_in_buffer(other.next_in_buffer),
14 prev_in_buffer(other.prev_in_buffer),
15 location_dirty(other.location_dirty),
19 other.next_in_buffer = 0;
20 other.prev_in_buffer = 0;
22 next_in_buffer->prev_in_buffer = this;
24 prev_in_buffer->next_in_buffer = this;
27 Bufferable::~Bufferable()
32 void Bufferable::use_buffer(Buffer *buf, Bufferable *prev)
34 if(prev && buf!=prev->buffer)
35 throw invalid_argument("Bufferable::use_buffer");
43 prev_in_buffer = prev;
46 next_in_buffer = prev_in_buffer->next_in_buffer;
47 prev_in_buffer->next_in_buffer = this;
51 location_dirty = true;
56 void Bufferable::change_buffer(Buffer *buf)
58 for(Bufferable *b=this; b; b=b->next_in_buffer)
61 b->location_dirty = true;
64 for(Bufferable *b=prev_in_buffer; b; b=b->prev_in_buffer)
67 b->location_dirty = true;
72 size_t Bufferable::get_required_buffer_size(bool align) const
74 const Bufferable *last = this;
75 for(; last->next_in_buffer; last=last->next_in_buffer) ;
76 size_t size = last->offset+last->get_data_size();
79 const Bufferable *first = this;
80 for(; first->prev_in_buffer; first=first->prev_in_buffer) ;
81 size_t alignment = first->get_alignment();
83 size -= size%alignment;
88 void Bufferable::unlink_from_buffer()
91 prev_in_buffer->next_in_buffer = next_in_buffer;
94 next_in_buffer->prev_in_buffer = prev_in_buffer;
95 next_in_buffer->update_offset();
103 void Bufferable::update_offset()
105 size_t new_offset = 0;
107 new_offset = prev_in_buffer->offset+prev_in_buffer->get_data_size();
109 size_t align = get_alignment();
110 new_offset += align-1;
111 new_offset -= new_offset%align;
112 if(new_offset!=offset)
115 location_dirty = true;
120 next_in_buffer->update_offset();
121 else if(buffer && offset+get_data_size()>buffer->get_size())
123 location_dirty = true;
128 void Bufferable::mark_dirty()
133 void Bufferable::upload_data(unsigned frame, char *target) const
136 throw invalid_operation("Bufferable::upload_data");
138 unsigned multi_buf = buffer->get_multiplicity();
140 uint8_t mask = 1<<frame;
144 size_t data_size = get_data_size();
147 buffer->require_size(offset+data_size);
148 location_dirty = false;
153 const char *source = reinterpret_cast<const char *>(get_data_pointer());
154 copy(source, source+data_size, target);
157 buffer->sub_data(frame*buffer->get_size()+offset, data_size, get_data_pointer());
159 if(!(dirty&((1<<multi_buf)-1)))
163 Bufferable::AsyncUpdater *Bufferable::create_async_updater() const
165 if(!buffer || buffer->get_multiplicity()>1)
166 throw invalid_operation("Bufferable::create_async_updater");
167 return new AsyncUpdater(*this);
171 Bufferable::AsyncUpdater::AsyncUpdater(const Bufferable &b):
173 transfer(b.buffer->sub_data_async(0, bufferable.get_required_buffer_size()))
176 void Bufferable::AsyncUpdater::upload_data()
178 char *mapped_address = static_cast<char *>(transfer.get_address());
179 bufferable.upload_data(0, mapped_address+bufferable.offset);
180 // Update all bufferables in the same buffer at once
181 for(const Bufferable *b=bufferable.prev_in_buffer; b; b=b->prev_in_buffer)
183 b->upload_data(0, mapped_address+b->offset);
184 for(const Bufferable *b=bufferable.next_in_buffer; b; b=b->next_in_buffer)
186 b->upload_data(0, mapped_address+b->offset);