Commit 97f5f399 authored by Rhys Perry's avatar Rhys Perry Committed by Brian Paul

st/mesa: add support for nvidia conservative rasterization extensions

Signed-off-by: Rhys Perry's avatarRhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Brian Paul's avatarBrian Paul <brianp@vmware.com>
parent fffe5e2d
......@@ -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);
}
......@@ -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;
}
......
......@@ -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;
}
}
}
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