X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbufferable.cpp;h=60df3eec92c1bd188dbab825e998baf1dd97e7b4;hb=900cf40469972b1f32a6dbac95c42f46c3726fa8;hp=abd10b3a865baa44bbc078c0745b65cb5682fba6;hpb=c21d4de686e7abd51b0a779af00f06ce459e18d6;p=libs%2Fgl.git diff --git a/source/bufferable.cpp b/source/bufferable.cpp index abd10b3a..60df3eec 100644 --- a/source/bufferable.cpp +++ b/source/bufferable.cpp @@ -9,7 +9,7 @@ namespace GL { Bufferable::Bufferable(): buffer(0), - buffer_offset(0), + offset(0), next_in_buffer(0), prev_in_buffer(0), dirty(false) @@ -33,10 +33,13 @@ void Bufferable::use_buffer(Buffer *buf, Bufferable *prev) { prev_in_buffer = prev; if(prev_in_buffer) + { + next_in_buffer = prev_in_buffer->next_in_buffer; prev_in_buffer->next_in_buffer = this; + } } - update_buffer_offset(); + update_offset(); } void Bufferable::unlink_from_buffer() @@ -46,43 +49,44 @@ void Bufferable::unlink_from_buffer() if(next_in_buffer) { next_in_buffer->prev_in_buffer = prev_in_buffer; - next_in_buffer->update_buffer_offset(); + next_in_buffer->update_offset(); } prev_in_buffer = 0; next_in_buffer = 0; + buffer = 0; } -void Bufferable::update_buffer_offset() +void Bufferable::update_offset() { - unsigned offset = 0; + unsigned new_offset = 0; if(prev_in_buffer) - offset = prev_in_buffer->buffer_offset+prev_in_buffer->get_data_size(); + new_offset = prev_in_buffer->offset+prev_in_buffer->get_data_size(); unsigned align = get_alignment(); - offset += align-1; - offset -= offset%align; - if(offset!=buffer_offset) + new_offset += align-1; + new_offset -= new_offset%align; + if(new_offset!=offset) { - buffer_offset = offset; + offset = new_offset; dirty = true; offset_changed(); } if(next_in_buffer) - next_in_buffer->update_buffer_offset(); + next_in_buffer->update_offset(); - /* Do not resize the buffer here, as the offsets may change multiple times - before the buffer is actually used */ + /* Do not resize the buffer here, as more bufferables may be added before + the buffer is actually used. */ } -void Bufferable::update_buffer_data() const +void Bufferable::update_buffer() const { - if(buffer_offset+get_data_size()>=buffer->get_size()) + 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->buffer_offset+last->get_data_size(); + unsigned total_size = last->offset+last->get_data_size(); if(total_size>buffer->get_size()) {