text: /*
   * Copyright (C) 2012-2013 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 "fd2_rasterizer.h"
  #include "fd2_context.h"
  #include "fd2_util.h"
  
  
  void *
  fd2_rasterizer_state_create(struct pipe_context *pctx,
  		const struct pipe_rasterizer_state *cso)
  {
  	struct fd2_rasterizer_stateobj *so;
  	float psize_min, psize_max;
  
  	so = CALLOC_STRUCT(fd2_rasterizer_stateobj);
  	if (!so)
  		return NULL;
  
  	if (cso->point_size_per_vertex) {
  		psize_min = util_get_min_point_size(cso);
  		psize_max = 8192.0 - 0.0625;
  	} else {
  		/* Force the point size to be as if the vertex output was disabled. */
  		psize_min = cso->point_size;
  		psize_max = cso->point_size;
  	}
  
  	so->base = *cso;
  
  	so->pa_sc_line_stipple = cso->line_stipple_enable ?
  		A2XX_PA_SC_LINE_STIPPLE_LINE_PATTERN(cso->line_stipple_pattern) |
  		A2XX_PA_SC_LINE_STIPPLE_REPEAT_COUNT(cso->line_stipple_factor) : 0;
  
  	so->pa_cl_clip_cntl = 0; // TODO
  
  	so->pa_su_vtx_cntl =
  		A2XX_PA_SU_VTX_CNTL_PIX_CENTER(cso->half_pixel_center ? PIXCENTER_OGL : PIXCENTER_D3D) |
  		A2XX_PA_SU_VTX_CNTL_QUANT_MODE(ONE_SIXTEENTH);
  
  	so->pa_su_point_size =
  		A2XX_PA_SU_POINT_SIZE_HEIGHT(cso->point_size/2) |
  		A2XX_PA_SU_POINT_SIZE_WIDTH(cso->point_size/2);
  
  	so->pa_su_point_minmax =
  		A2XX_PA_SU_POINT_MINMAX_MIN(psize_min/2) |
  		A2XX_PA_SU_POINT_MINMAX_MAX(psize_max/2);
  
  	so->pa_su_line_cntl =
  		A2XX_PA_SU_LINE_CNTL_WIDTH(cso->line_width/2);
  
  	so->pa_su_sc_mode_cntl =
  		A2XX_PA_SU_SC_MODE_CNTL_VTX_WINDOW_OFFSET_ENABLE |
  		A2XX_PA_SU_SC_MODE_CNTL_FRONT_PTYPE(fd_polygon_mode(cso->fill_front)) |
  		A2XX_PA_SU_SC_MODE_CNTL_BACK_PTYPE(fd_polygon_mode(cso->fill_back));
  
  	if (cso->cull_face & PIPE_FACE_FRONT)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_CULL_FRONT;
  	if (cso->cull_face & PIPE_FACE_BACK)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_CULL_BACK;
  	if (!cso->flatshade_first)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_PROVOKING_VTX_LAST;
  	if (!cso->front_ccw)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_FACE;
  	if (cso->line_stipple_enable)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_LINE_STIPPLE_ENABLE;
  	if (cso->multisample)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_MSAA_ENABLE;
  
  	if (cso->fill_front != PIPE_POLYGON_MODE_FILL ||
  			cso->fill_back != PIPE_POLYGON_MODE_FILL)
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DUALMODE);
  	else
  		so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DISABLED);
  
  	if (cso->offset_tri)
  		so->pa_su_sc_mode_cntl |=
  			A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_FRONT_ENABLE |
  			A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_BACK_ENABLE |
  			A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_PARA_ENABLE;
  
  	return so;
  }
  