3 #include "bufferable.h"
11 Bufferable::Bufferable(Bufferable &&other):
14 next_in_buffer(other.next_in_buffer),
15 prev_in_buffer(other.prev_in_buffer),
16 location_dirty(other.location_dirty),
20 other.next_in_buffer = 0;
21 other.prev_in_buffer = 0;
23 next_in_buffer->prev_in_buffer = this;
25 prev_in_buffer->next_in_buffer = this;
28 Bufferable::~Bufferable()
33 void Bufferable::use_buffer(Buffer *buf, Bufferable *prev)
35 if(prev && buf!=prev->buffer)
36 throw invalid_argument("Bufferable::use_buffer");
44 prev_in_buffer = prev;
47 next_in_buffer = prev_in_buffer->next_in_buffer;
48 prev_in_buffer->next_in_buffer = this;
52 location_dirty = true;
57 void Bufferable::change_buffer(Buffer *buf)
59 for(Bufferable *b=this; b; b=b->next_in_buffer)
62 b->location_dirty = true;
65 for(Bufferable *b=prev_in_buffer; b; b=b->prev_in_buffer)
68 b->location_dirty = true;
73 size_t Bufferable::get_required_buffer_size(bool align) const
75 const Bufferable *last = this;
76 for(; last->next_in_buffer; last=last->next_in_buffer) ;
77 size_t size = last->offset+last->get_data_size();
80 const Bufferable *first = this;
81 for(; first->prev_in_buffer; first=first->prev_in_buffer) ;
82 size_t alignment = first->get_alignment();
84 size -= size%alignment;
89 void Bufferable::unlink_from_buffer()
92 prev_in_buffer->next_in_buffer = next_in_buffer;
95 next_in_buffer->prev_in_buffer = prev_in_buffer;
96 next_in_buffer->update_offset();
104 void Bufferable::update_offset()
106 size_t new_offset = 0;
108 new_offset = prev_in_buffer->offset+prev_in_buffer->get_data_size();
110 size_t align = get_alignment();
111 new_offset += align-1;
112 new_offset -= new_offset%align;
113 if(new_offset!=offset)
116 location_dirty = true;
121 next_in_buffer->update_offset();
122 else if(buffer && offset+get_data_size()>buffer->get_size())
124 location_dirty = true;
129 void Bufferable::mark_dirty()
134 void Bufferable::upload_data(unsigned frame, char *target) const
137 throw invalid_operation("Bufferable::upload_data");
139 unsigned multi_buf = buffer->get_multiplicity();
141 uint8_t mask = 1<<frame;
145 size_t data_size = get_data_size();
148 buffer->require_size(offset+data_size);
149 location_dirty = false;
154 const char *source = reinterpret_cast<const char *>(get_data_pointer());
155 copy(source, source+data_size, target);
158 buffer->sub_data(frame*buffer->get_size()+offset, data_size, get_data_pointer());
160 if(!(dirty&((1<<multi_buf)-1)))
164 Bufferable::AsyncUpdater *Bufferable::create_async_updater() const
166 if(!buffer || buffer->get_multiplicity()>1)
167 throw invalid_operation("Bufferable::create_async_updater");
168 return new AsyncUpdater(*this);
172 Bufferable::AsyncUpdater::AsyncUpdater(const Bufferable &b):
175 bufferable.buffer->require_size(bufferable.get_required_buffer_size());
176 mapped_address = reinterpret_cast<char *>(bufferable.buffer->map());
179 Bufferable::AsyncUpdater::~AsyncUpdater()
181 bufferable.buffer->unmap();
184 void Bufferable::AsyncUpdater::upload_data()
186 bufferable.upload_data(0, mapped_address+bufferable.offset);
187 // Update all bufferables in the same buffer at once
188 for(const Bufferable *b=bufferable.prev_in_buffer; b; b=b->prev_in_buffer)
190 b->upload_data(0, mapped_address+b->offset);
191 for(const Bufferable *b=bufferable.next_in_buffer; b; b=b->next_in_buffer)
193 b->upload_data(0, mapped_address+b->offset);