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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 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 "freedreno_rasterizer.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
static enum adreno_pa_su_sc_draw
polygon_mode(unsigned mode)
{
switch (mode) {
case PIPE_POLYGON_MODE_POINT:
return PC_DRAW_POINTS;
case PIPE_POLYGON_MODE_LINE:
return PC_DRAW_LINES;
case PIPE_POLYGON_MODE_FILL:
return PC_DRAW_TRIANGLES;
default:
DBG("invalid polygon mode: %u", mode);
return 0;
}
}
static void *
fd_rasterizer_state_create(struct pipe_context *pctx,
const struct pipe_rasterizer_state *cso)
{
struct fd_rasterizer_stateobj *so;
float psize_min, psize_max;
so = CALLOC_STRUCT(fd_rasterizer_stateobj);
if (!so)
return NULL;
if (cso->point_size_per_vertex) {
psize_min = util_get_min_point_size(cso);
psize_max = 8192;
} 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(polygon_mode(cso->fill_front)) |
A2XX_PA_SU_SC_MODE_CNTL_BACK_PTYPE(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;
}
static void
fd_rasterizer_state_bind(struct pipe_context *pctx, void *hwcso)
{
struct fd_context *ctx = fd_context(pctx);
ctx->rasterizer = hwcso;
ctx->dirty |= FD_DIRTY_RASTERIZER;
}
static void
fd_rasterizer_state_delete(struct pipe_context *pctx, void *hwcso)
{
FREE(hwcso);
}
void
fd_rasterizer_init(struct pipe_context *pctx)
{
pctx->create_rasterizer_state = fd_rasterizer_state_create;
pctx->bind_rasterizer_state = fd_rasterizer_state_bind;
pctx->delete_rasterizer_state = fd_rasterizer_state_delete;
}
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