Graphics processing

When tile-based rendering is performed in a graphics processing system, a list representing segments to be processed is maintained for respective sub-regions of tiles to be rendered, wherein each list entry includes, inter alia, at least an indication of a coverage of a set of segments represented by the list entry within the tile sub-region and an indication of whether the set of segments represented by the list entry is eligible to undergo a particular processing operation. The coverage information and eligibility information of the list entries are then used to control the processing of segments for the sub-regions of the tile in such a manner that processing order dependencies are implemented and satisfied. 当在图形处理系统中执行基于图块的渲染时，针对待渲染的图块的相应子区域维护表示待处理的片段的列表，其中每个列表条目尤其至少包括列表条目所表示的一组片段在图块子区域内的覆盖范围的指示和列表条目所表示的一组片段是否有资格经历特定处理操作的指示。然后，列表条目的覆盖范围信息和资格信息用于控制针对图块的子区域的片段的处理，以此类方式确保处理顺序依赖性被实施和满足。