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03da52cff8
This should get the "right_edge" value for each segment plumbed through to the binning phase. It also needs to be plumbed to coarse raster and wired up there. Also considering WIP because none of this logic has been tested yet.
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
// 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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// TODO: make the image size dynamic.
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#define IMAGE_WIDTH 2048
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#define IMAGE_HEIGHT 1536
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// TODO: compute this
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#define WIDTH_IN_TILEGROUPS 4
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#define TILEGROUP_WIDTH_PX 512
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#define TILEGROUP_HEIGHT_PX 16
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#define TILEGROUP_INITIAL_ALLOC 1024
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// Quick note on layout of tilegroups (k1 output): in the base,
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// there is a region of size TILEGROUP_STRIDE for each tilegroup.
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// At offset 0 are the main instances, encoded with Jump. At offset
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// TILEGROUP_STROKE_START are the stroke instances, encoded with
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// Head and Link. Similarly for fill.
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#define TILEGROUP_STRIDE 2048
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#define TILEGROUP_STROKE_START 1024
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#define TILEGROUP_FILL_START 1536
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#define TILEGROUP_STROKE_ALLOC 1024
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#define TILEGROUP_FILL_ALLOC 1024
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#define TILEGROUP_INITIAL_STROKE_ALLOC 512
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#define TILEGROUP_INITIAL_FILL_ALLOC 512
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// TODO: compute all these
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#define WIDTH_IN_TILES 128
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#define TILEGROUP_WIDTH_TILES 32
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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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// Maximum number of segments in a SegChunk
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#define SEG_CHUNK_N 32
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#define SEG_CHUNK_ALLOC 512
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// Stuff for new algorithm follows; some of the above should get
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// deleted.
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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 16
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#define N_TILE (N_TILE_X * N_TILE_Y)
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#define LG_N_TILE 8
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#define N_SLICE (N_TILE / 32)
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// Number of workgroups for binning kernel
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#define N_WG 16
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// This is the ratio of the number of elements in a binning workgroup
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// over the number of elements in a partition workgroup.
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#define ELEMENT_BINNING_RATIO 4
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#define BIN_INITIAL_ALLOC 64
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#define BIN_ALLOC 256
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