diff options
| author | Alejandro Soto <alejandro@34project.org> | 2023-11-12 22:18:10 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2023-11-14 07:48:52 -0600 |
| commit | 58d647a047e8761ad1f619173ee51dd4b65831ac (patch) | |
| tree | e3a08d6321da9a031caf81d84a59ca4f05823fa9 /rtl/gfx/gfx_defs.sv | |
| parent | a401d413ba766b01aa980a8e013c79500a490c2e (diff) | |
rtl/gfx: implement perspective-corrected barycentric coordinates
Diffstat (limited to 'rtl/gfx/gfx_defs.sv')
| -rw-r--r-- | rtl/gfx/gfx_defs.sv | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/rtl/gfx/gfx_defs.sv b/rtl/gfx/gfx_defs.sv index bffbb1f..7da259a 100644 --- a/rtl/gfx/gfx_defs.sv +++ b/rtl/gfx/gfx_defs.sv @@ -67,6 +67,10 @@ typedef struct packed typedef logic signed[31:0] fixed; typedef fixed[2:0] fixed_tri; +`define EDGE_P0_TO_P1 0 +`define EDGE_P1_TO_P2 1 +`define EDGE_P2_TO_P0 2 + typedef struct packed { fixed x, y; @@ -134,6 +138,8 @@ typedef struct packed } frag_paint; `define GFX_FRAG_ADDR_STAGES 3 +`define GFX_FRAG_BARY_STAGES (`FIXED_DIV_STAGES + 2 + `FIXED_DIV_STAGES) `define GFX_FRAG_SHADE_STAGES (`LERP_STAGES + 1) +`define GFX_FRAG_STAGES (`GFX_FRAG_BARY_STAGES + `GFX_FRAG_SHADE_STAGES) `endif |