From 97f5f399ef79d72dc7bb6e7fe7b35c10b9000855 Mon Sep 17 00:00:00 2001 From: Rhys Perry Date: Fri, 27 Apr 2018 08:43:00 -0600 Subject: [PATCH] st/mesa: add support for nvidia conservative rasterization extensions Signed-off-by: Rhys Perry Reviewed-by: Brian Paul --- src/mesa/state_tracker/st_atom_rasterizer.c | 15 +++++++++ src/mesa/state_tracker/st_context.c | 2 ++ src/mesa/state_tracker/st_extensions.c | 34 +++++++++++++++++++++ 3 files changed, 51 insertions(+) diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c index 1be072e6e39..0383b8ac4ad 100644 --- a/src/mesa/state_tracker/st_atom_rasterizer.c +++ b/src/mesa/state_tracker/st_atom_rasterizer.c @@ -298,5 +298,20 @@ st_update_rasterizer(struct st_context *st) raster->clip_plane_enable = ctx->Transform.ClipPlanesEnabled; raster->clip_halfz = (ctx->Transform.ClipDepthMode == GL_ZERO_TO_ONE); + /* ST_NEW_RASTERIZER */ + if (ctx->ConservativeRasterization) { + if (ctx->ConservativeRasterMode == GL_CONSERVATIVE_RASTER_MODE_POST_SNAP_NV) + raster->conservative_raster_mode = PIPE_CONSERVATIVE_RASTER_POST_SNAP; + else + raster->conservative_raster_mode = PIPE_CONSERVATIVE_RASTER_PRE_SNAP; + } else { + raster->conservative_raster_mode = PIPE_CONSERVATIVE_RASTER_OFF; + } + + raster->conservative_raster_dilate = ctx->ConservativeRasterDilate; + + raster->subpixel_precision_x = ctx->SubpixelPrecisionBias[0]; + raster->subpixel_precision_y = ctx->SubpixelPrecisionBias[1]; + cso_set_rasterizer(st->cso_context, raster); } diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c index b0266bef8b5..ee76e07a7d1 100644 --- a/src/mesa/state_tracker/st_context.c +++ b/src/mesa/state_tracker/st_context.c @@ -344,6 +344,8 @@ st_init_driver_flags(struct st_context *st) f->NewPolygonState = ST_NEW_RASTERIZER; f->NewPolygonStipple = ST_NEW_POLY_STIPPLE; f->NewViewport = ST_NEW_VIEWPORT; + f->NewNvConservativeRasterization = ST_NEW_RASTERIZER; + f->NewNvConservativeRasterizationParams = ST_NEW_RASTERIZER; } diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index 0dc8adb2622..5479e637aff 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -494,6 +494,16 @@ void st_init_limits(struct pipe_screen *screen, c->UseSTD430AsDefaultPacking = screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF); + c->MaxSubpixelPrecisionBiasBits = + screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS); + + c->ConservativeRasterDilateRange[0] = + screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE); + c->ConservativeRasterDilateRange[1] = + screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE); + c->ConservativeRasterDilateGranularity = + screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY); + /* limit the max combined shader output resources to a driver limit */ temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES); if (temp > 0 && c->MaxCombinedShaderOutputResources > temp) @@ -1364,4 +1374,28 @@ void st_init_extensions(struct pipe_screen *screen, extensions->ARB_texture_cube_map_array && extensions->ARB_texture_stencil8 && extensions->ARB_texture_multisample; + + if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) && + screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) && + screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) { + float max_dilate; + bool pre_snap_triangles, pre_snap_points_lines; + + max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE); + + pre_snap_triangles = + screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES); + pre_snap_points_lines = + screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES); + + extensions->NV_conservative_raster = + screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1; + + if (extensions->NV_conservative_raster) { + extensions->NV_conservative_raster_dilate = max_dilate >= 0.75; + extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles; + extensions->NV_conservative_raster_pre_snap = + pre_snap_triangles && pre_snap_points_lines; + } + } } -- 2.30.2