3 commits

Author	SHA1	Message	Date
Raph Levien	acb3933d94	Variable size encoding of draw objects ... This patch switches to a variable size encoding of draw objects. In addition to the CPU-side scene encoding, it changes the representation of intermediate per draw object state from the `Annotated` struct to a variable "info" encoding. In addition, the bounding boxes are moved to a separate array (for a more "structure of "arrays" approach). Data that's unchanged from the scene encoding is not copied. Rather, downstream stages can access the data from the scene buffer (reducing allocation and copying). Prefix sums, computed in `DrawMonoid` track the offset of both scene and intermediate data. The tags for the CPU-side encoding have been split into their own stream (again a change from AoS to SoA style). This is not necessarily the final form. There's some stuff (including at least one piet-gpu-derive type) that can be deleted. In addition, the linewidth field should probably move from the info to path-specific. Also, the 1:1 correspondence between draw object and path has not yet been broken. Closes #152	2022-03-14 16:32:08 -07:00
Raph Levien	44327fe49f	Beginnings of new element pipeline ... This successfully renders the tiger; fills and strokes are supported. Other parts of the imaging model, not yet. Progress toward #119	2021-12-03 15:33:01 -08:00
Raph Levien	178761dcb3	Path stream processing ... This patch contains the core of the path stream processing, though some integration bits are missing. The core logic is tested, though combinations of path types, transforms, and line widths are not (yet). Progress towards #119	2021-12-01 07:33:24 -08:00