Module strips 

The strip instance the vertex shader steps over, and the conversion into it from a rasterized Strip.

One GpuStrip is one instance of a four-vertex quad: there is no geometry buffer at all, the vertex shader builds the quad’s corners from the instance’s own fields (see GpuStrip::vertex_range).

Structs

GpuStrip

One strip instance, matching the shaders’ StripInstance byte for byte.

StripDraw

The per-draw values every strip instance of one draw shares.

Enums

PaintType

How the fragment shader turns an instance’s payload into colour.

Constants

PAINT_TEXTURE_INDEX_MASK

Mask covering the encoded-paint texel index in GpuStrip::paint_and_rect_flag — everything below the paint type.

RECT_STRIP_FLAG

Bit 31 of GpuStrip::paint_and_rect_flag, marking an instance as a whole rectangle rather than a strip: the shader then reads GpuStrip::dense_width_or_rect_height as a height and GpuStrip::col_idx_or_rect_frac as a coverage fraction.

Functions

alpha_column

The alpha column the strip shader addresses coverage by, from the byte index a Strip carries.

pack_paint_descriptor

The packed paint descriptor for a paint_type instance whose encoded-paint record starts at texel_index.