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e9ff509ab9
Encode stroke vs fill as tag flags, thereby reducing the number of scene elements. Encoding change only, no functional changes. The previous Stroke and Fill commands are merged to one command, FillColor. The encoding to annotated element is divergent, which is fixed when annotated elements move to tag flags. Updates #70 Signed-off-by: Elias Naur <mail@eliasnaur.com>
51 lines
1.4 KiB
C
51 lines
1.4 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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#define ENABLE_IMAGE_INDICES
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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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Alloc trans_alloc;
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};
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// Fill modes.
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#define MODE_NONZERO 0
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#define MODE_STROKE 1
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// fill_mode_from_flags extracts the fill mode from tag flags.
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uint fill_mode_from_flags(uint flags) {
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return flags & 0x1;
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}
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