src/gallium/drivers/nv40/nv40_state_stipple.c

   1 #include "nv40_context.h"
   2
   3 static boolean
   4 nv40_state_stipple_validate(struct nvfx_context *nvfx)
   5 {
   6         struct pipe_rasterizer_state *rast = &nvfx->rasterizer->pipe;
   7         struct nouveau_grobj *eng3d = nvfx->screen->eng3d;
   8         struct nouveau_stateobj *so;
   9
  10         if (nvfx->state.hw[NVFX_STATE_STIPPLE] &&
  11            (rast->poly_stipple_enable == 0 && nvfx->state.stipple_enabled == 0))
  12                 return FALSE;
  13
  14         if (rast->poly_stipple_enable) {
  15                 unsigned i;
  16
  17                 so = so_new(2, 33, 0);
  18                 so_method(so, eng3d, NV34TCL_POLYGON_STIPPLE_ENABLE, 1);
  19                 so_data  (so, 1);
  20                 so_method(so, eng3d, NV34TCL_POLYGON_STIPPLE_PATTERN(0), 32);
  21                 for (i = 0; i < 32; i++)
  22                         so_data(so, nvfx->stipple[i]);
  23         } else {
  24                 so = so_new(1, 1, 0);
  25                 so_method(so, eng3d, NV34TCL_POLYGON_STIPPLE_ENABLE, 1);
  26                 so_data  (so, 0);
  27         }
  28
  29         so_ref(so, &nvfx->state.hw[NVFX_STATE_STIPPLE]);
  30         return TRUE;
  31 }
  32
  33 struct nvfx_state_entry nv40_state_stipple = {
  34         .validate = nv40_state_stipple_validate,
  35         .dirty = {
  36                 .pipe = NVFX_NEW_STIPPLE | NVFX_NEW_RAST,
  37                 .hw = NVFX_STATE_STIPPLE,
  38         }
  39 };