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() const
75 const Bufferable *last = this;
76 for(; last->next_in_buffer; last=last->next_in_buffer) ;
77 return last->offset+last->get_data_size();
80 void Bufferable::unlink_from_buffer()
83 prev_in_buffer->next_in_buffer = next_in_buffer;
86 next_in_buffer->prev_in_buffer = prev_in_buffer;
87 next_in_buffer->update_offset();
95 void Bufferable::update_offset()
97 size_t new_offset = 0;
99 new_offset = prev_in_buffer->offset+prev_in_buffer->get_data_size();
101 size_t align = get_alignment();
102 new_offset += align-1;
103 new_offset -= new_offset%align;
104 if(new_offset!=offset)
107 location_dirty = true;
112 next_in_buffer->update_offset();
113 else if(buffer && offset+get_data_size()>buffer->get_size())
115 location_dirty = true;
120 void Bufferable::upload_data(char *target) const
123 throw invalid_operation("Bufferable::upload_data");
125 size_t data_size = get_data_size();
128 buffer->require_size(offset+data_size);
129 location_dirty = false;
134 const char *source = reinterpret_cast<const char *>(get_data_pointer());
135 copy(source, source+data_size, target);
138 buffer->sub_data(offset, data_size, get_data_pointer());
143 Bufferable::AsyncUpdater::AsyncUpdater(const Bufferable &b):
146 bufferable.buffer->require_size(bufferable.get_required_buffer_size());
147 mapped_address = reinterpret_cast<char *>(bufferable.buffer->map());
150 Bufferable::AsyncUpdater::~AsyncUpdater()
152 bufferable.buffer->unmap();
155 void Bufferable::AsyncUpdater::upload_data()
157 bufferable.upload_data(mapped_address+bufferable.offset);
158 // Update all bufferables in the same buffer at once
159 for(const Bufferable *b=bufferable.prev_in_buffer; b; b=b->prev_in_buffer)
161 b->upload_data(mapped_address+b->offset);
162 for(const Bufferable *b=bufferable.next_in_buffer; b; b=b->next_in_buffer)
164 b->upload_data(mapped_address+b->offset);