diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_draw.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c index b0a162a..8737c64 100644 --- a/src/mesa/drivers/dri/i965/brw_draw.c +++ b/src/mesa/drivers/dri/i965/brw_draw.c @@ -491,9 +491,29 @@ brw_try_draw_prims(struct gl_context *ctx, } } - brw->draw.params.gl_basevertex = + /* Determine if we need to flag BRW_NEW_VERTICES for updating the + * gl_BaseVertexARB or gl_BaseInstanceARB values. For indirect draw, we + * always flag if the shader uses one of the values. For direct draws, + * we only flag if the values change. + */ + const int new_basevertex = prims[i].indexed ? prims[i].basevertex : prims[i].start; - brw->draw.params.gl_baseinstance = prims[i].base_instance; + const int new_baseinstance = prims[i].base_instance; + if (i > 0) { + const bool uses_draw_parameters = + brw->vs.prog_data->uses_basevertex || + brw->vs.prog_data->uses_baseinstance; + + if ((uses_draw_parameters && prims[i].is_indirect) || + (brw->vs.prog_data->uses_basevertex && + brw->draw.params.gl_basevertex != new_basevertex) || + (brw->vs.prog_data->uses_baseinstance && + brw->draw.params.gl_baseinstance != new_baseinstance)) + brw->ctx.NewDriverState |= BRW_NEW_VERTICES; + } + + brw->draw.params.gl_basevertex = new_basevertex; + brw->draw.params.gl_baseinstance = new_baseinstance; drm_intel_bo_unreference(brw->draw.draw_params_bo); if (prims[i].is_indirect) { |