mirror of
https://github.com/italicsjenga/vello.git
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06ec395b68
The bones of coarse rasterization are in place (so far, fills only). Still not suitable for end-to-end (need to generate bounding boxes, among other things), but getting closer.
48 lines
1.3 KiB
WebGPU Shading Language
48 lines
1.3 KiB
WebGPU Shading Language
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Also licensed under MIT license, at your choice.
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struct Config {
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width_in_tiles: u32,
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height_in_tiles: u32,
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n_drawobj: u32,
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// offsets within scene buffer (in u32 units)
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// Note: this is a difference from piet-gpu, which is in bytes
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drawtag_base: u32,
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drawdata_base: u32,
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}
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// Geometry of tiles and bins
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let TILE_WIDTH = 16u;
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let TILE_HEIGHT = 16u;
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// Number of tiles per bin
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let N_TILE_X = 16u;
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let N_TILE_Y = 16u;
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let N_TILE = N_TILE_X * N_TILE_Y;
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// Should ptcl stuff move to a separate import?
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// Layout of per-tile command list
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// Initial allocation, in u32's.
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let PTCL_INITIAL_ALLOC = 64u;
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let PTCL_INCREMENT = 256u;
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// Amount of space taken by jump
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let PTCL_HEADROOM = 2u;
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