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6a4e26ef2a
Defining MEM_DEBUG in mem.h will add a size field to Alloc and enable bounds and alignment checks for every memory read and write. Notes: - Deriving an Alloc from Path.tiles is unsound, but it's more trouble to convert Path.tiles from TileRef to a variable sized Alloc. - elements.comp note that "We should be able to use an array of structs but the NV shader compiler doesn't seem to like it". If that's still relevant, does the shared arrays of Allocs work? Signed-off-by: Elias Naur <mail@eliasnaur.com>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
// SPDX-License-Identifier: Apache-2.0 OR MIT OR Unlicense
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// Various constants for the sizes of groups and tiles.
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// Much of this will be made dynamic in various ways, but for now it's easiest
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// to hardcode and keep all in one place.
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// A LG_WG_FACTOR of n scales workgroup sizes by 2^n. Use 0 for a
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// maximum workgroup size of 128, or 1 for a maximum size of 256.
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#define LG_WG_FACTOR 1
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#define WG_FACTOR (1<<LG_WG_FACTOR)
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#define TILE_WIDTH_PX 16
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#define TILE_HEIGHT_PX 16
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#define PTCL_INITIAL_ALLOC 1024
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// These should probably be renamed and/or reworked. In the binning
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// kernel, they represent the number of bins. Also, the workgroup size
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// of that kernel is equal to the number of bins, but should probably
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// be more flexible (it's 512 in the K&L paper).
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#define N_TILE_X 16
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#define N_TILE_Y (8 * WG_FACTOR)
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#define N_TILE (N_TILE_X * N_TILE_Y)
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#define LG_N_TILE (7 + LG_WG_FACTOR)
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#define N_SLICE (N_TILE / 32)
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struct Config {
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uint n_elements; // paths
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uint n_pathseg;
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uint width_in_tiles;
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uint height_in_tiles;
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Alloc tile_alloc;
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Alloc bin_alloc;
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Alloc ptcl_alloc;
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Alloc pathseg_alloc;
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Alloc anno_alloc;
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};
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