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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "util/u_string.h"
#include "util/u_memory.h"
#include "fd4_rasterizer.h"
#include "fd4_context.h"
#include "fd4_format.h"
void *
fd4_rasterizer_state_create(struct pipe_context *pctx,
const struct pipe_rasterizer_state *cso)
{
struct fd4_rasterizer_stateobj *so;
float psize_min, psize_max;
so = CALLOC_STRUCT(fd4_rasterizer_stateobj);
if (!so)
return NULL;
so->base = *cso;
if (cso->point_size_per_vertex) {
psize_min = util_get_min_point_size(cso);
psize_max = 4092;
} else {
/* Force the point size to be as if the vertex output was disabled. */
psize_min = cso->point_size;
psize_max = cso->point_size;
}
/*
if (cso->line_stipple_enable) {
??? TODO line stipple
}
TODO cso->half_pixel_center
if (cso->multisample)
TODO
*/
so->gras_cl_clip_cntl = 0x80000; /* ??? */
so->gras_su_point_minmax =
A4XX_GRAS_SU_POINT_MINMAX_MIN(psize_min) |
A4XX_GRAS_SU_POINT_MINMAX_MAX(psize_max);
so->gras_su_point_size = A4XX_GRAS_SU_POINT_SIZE(cso->point_size);
so->gras_su_poly_offset_scale =
A4XX_GRAS_SU_POLY_OFFSET_SCALE(cso->offset_scale);
so->gras_su_poly_offset_offset =
A4XX_GRAS_SU_POLY_OFFSET_OFFSET(cso->offset_units);
so->gras_su_mode_control =
A4XX_GRAS_SU_MODE_CONTROL_LINEHALFWIDTH(cso->line_width/2.0);
so->pc_prim_vtx_cntl2 =
A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE(fd_polygon_mode(cso->fill_front)) |
A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE(fd_polygon_mode(cso->fill_back));
if (cso->fill_front != PIPE_POLYGON_MODE_FILL ||
cso->fill_back != PIPE_POLYGON_MODE_FILL)
so->pc_prim_vtx_cntl2 |= A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_ENABLE;
if (cso->cull_face & PIPE_FACE_FRONT)
so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_CULL_FRONT;
if (cso->cull_face & PIPE_FACE_BACK)
so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_CULL_BACK;
if (!cso->front_ccw)
so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_FRONT_CW;
if (!cso->flatshade_first)
so->pc_prim_vtx_cntl |= A4XX_PC_PRIM_VTX_CNTL_PROVOKING_VTX_LAST;
if (cso->offset_tri)
so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_POLY_OFFSET;
if (!cso->depth_clip_near)
so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_ZNEAR_CLIP_DISABLE |
A4XX_GRAS_CL_CLIP_CNTL_ZFAR_CLIP_DISABLE;
if (cso->clip_halfz)
so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_ZERO_GB_SCALE_Z;
return so;
}
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