X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbufferable.cpp;h=3178e0adefa38f72e2d8aa22ecbae6769c50cdc7;hp=e6b52ddfa53f622f1bdcbffe692dc337db92cb48;hb=HEAD;hpb=9f25c3632cfd5c669a2ad24255e2e85dfa1cb460 diff --git a/source/bufferable.cpp b/source/bufferable.cpp deleted file mode 100644 index e6b52ddf..00000000 --- a/source/bufferable.cpp +++ /dev/null @@ -1,170 +0,0 @@ -#include -#include "bindable.h" -#include "buffer.h" -#include "bufferable.h" - -using namespace std; - -namespace Msp { -namespace GL { - -Bufferable::Bufferable(): - buffer(0), - offset(0), - next_in_buffer(0), - prev_in_buffer(0), - dirty(false) -{ } - -Bufferable::~Bufferable() -{ - unlink_from_buffer(); -} - -void Bufferable::use_buffer(Buffer *buf, Bufferable *prev) -{ - if(prev && buf!=prev->buffer) - throw invalid_argument("Bufferable::use_buffer"); - - if(buffer) - unlink_from_buffer(); - - buffer = buf; - if(buffer) - { - prev_in_buffer = prev; - if(prev_in_buffer) - { - next_in_buffer = prev_in_buffer->next_in_buffer; - prev_in_buffer->next_in_buffer = this; - } - } - - dirty = true; - update_offset(); -} - -Bufferable::AsyncUpdater *Bufferable::refresh_async() const -{ - return dirty ? new AsyncUpdater(*this) : 0; -} - -void Bufferable::unlink_from_buffer() -{ - if(prev_in_buffer) - prev_in_buffer->next_in_buffer = next_in_buffer; - if(next_in_buffer) - { - next_in_buffer->prev_in_buffer = prev_in_buffer; - next_in_buffer->update_offset(); - } - prev_in_buffer = 0; - next_in_buffer = 0; - buffer = 0; -} - -void Bufferable::update_offset() -{ - unsigned new_offset = 0; - if(prev_in_buffer) - new_offset = prev_in_buffer->offset+prev_in_buffer->get_data_size(); - - unsigned align = get_alignment(); - new_offset += align-1; - new_offset -= new_offset%align; - if(new_offset!=offset) - { - offset = new_offset; - dirty = true; - offset_changed(); - } - - if(next_in_buffer) - next_in_buffer->update_offset(); - - /* Do not resize the buffer here, as more bufferables may be added before - the buffer is actually used. */ -} - -bool Bufferable::resize_buffer() const -{ - if(offset+get_data_size()>=buffer->get_size()) - { - const Bufferable *last = this; - for(; last->next_in_buffer; last=last->next_in_buffer) ; - - unsigned total_size = last->offset+last->get_data_size(); - - if(total_size>buffer->get_size()) - { - buffer->data(total_size, 0); - return true; - } - } - - return false; -} - -void Bufferable::update_buffer() const -{ - BindRestore bind(buffer, buffer->get_type()); - if(resize_buffer()) - { - /* Resizing the buffer invalidates its contents. Non-dirty data may - be in use, so reupload it. */ - for(const Bufferable *b=prev_in_buffer; b; b=b->prev_in_buffer) - if(!b->dirty) - b->upload_data(0); - for(const Bufferable *b=next_in_buffer; b; b=b->next_in_buffer) - if(!b->dirty) - b->upload_data(0); - } - - upload_data(0); - dirty = false; -} - -void Bufferable::upload_data(char *target) const -{ - if(target) - { - const char *source = reinterpret_cast(get_data_pointer()); - copy(source, source+get_data_size(), target); - } - else - buffer->sub_data(offset, get_data_size(), get_data_pointer()); -} - - -Bufferable::AsyncUpdater::AsyncUpdater(const Bufferable &b): - bufferable(b) -{ - buffer_resized = bufferable.resize_buffer(); - mapped_address = reinterpret_cast(bufferable.buffer->map(WRITE_ONLY)); -} - -Bufferable::AsyncUpdater::~AsyncUpdater() -{ - bufferable.buffer->unmap(); -} - -void Bufferable::AsyncUpdater::upload_data() -{ - bufferable.upload_data(mapped_address+bufferable.offset); - // Update all bufferables in the same buffer at once - for(const Bufferable *b=bufferable.prev_in_buffer; b; b=b->prev_in_buffer) - if(b->dirty || buffer_resized) - { - b->upload_data(mapped_address+b->offset); - b->dirty = false; - } - for(const Bufferable *b=bufferable.next_in_buffer; b; b=b->next_in_buffer) - if(b->dirty || buffer_resized) - { - b->upload_data(mapped_address+b->offset); - b->dirty = false; - } -} - -} // namespace GL -} // namespace Msp