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/*
* Copyright (c) 2012-2015 Etnaviv Project
*
* 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, sub license,
* 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 NON-INFRINGEMENT. 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.
*/
#include "etnaviv_rasterizer.h"
#include "etnaviv_context.h"
#include "etnaviv_screen.h"
#include "hw/common.xml.h"
#include "etnaviv_translate.h"
#include "util/u_math.h"
#include "util/u_memory.h"
void *
etna_rasterizer_state_create(struct pipe_context *pctx,
const struct pipe_rasterizer_state *so)
{
struct etna_rasterizer_state *cs;
struct etna_context *ctx = etna_context(pctx);
if (so->fill_front != so->fill_back)
DBG("Different front and back fill mode not supported");
cs = CALLOC_STRUCT(etna_rasterizer_state);
if (!cs)
return NULL;
cs->base = *so;
cs->PA_CONFIG = (so->flatshade ? VIVS_PA_CONFIG_SHADE_MODEL_FLAT : VIVS_PA_CONFIG_SHADE_MODEL_SMOOTH) |
translate_cull_face(so->cull_face, so->front_ccw) |
translate_polygon_mode(so->fill_front) |
COND(so->point_quad_rasterization, VIVS_PA_CONFIG_POINT_SPRITE_ENABLE) |
COND(so->point_size_per_vertex, VIVS_PA_CONFIG_POINT_SIZE_ENABLE) |
COND(VIV_FEATURE(ctx->screen, chipMinorFeatures1, WIDE_LINE), VIVS_PA_CONFIG_WIDE_LINE);
cs->PA_LINE_WIDTH = fui(so->line_width / 2.0f);
cs->PA_POINT_SIZE = fui(so->point_size / 2.0f);
cs->SE_DEPTH_SCALE = fui(so->offset_scale);
cs->SE_DEPTH_BIAS = fui(so->offset_units) / 65535.0f;
cs->SE_CONFIG = COND(so->line_last_pixel, VIVS_SE_CONFIG_LAST_PIXEL_ENABLE);
/* XXX anything else? */
/* XXX bottom_edge_rule */
cs->PA_SYSTEM_MODE =
COND(!so->flatshade_first, VIVS_PA_SYSTEM_MODE_PROVOKING_VERTEX_LAST) |
COND(so->half_pixel_center, VIVS_PA_SYSTEM_MODE_HALF_PIXEL_CENTER);
/* so->scissor overrides the scissor, defaulting to the whole framebuffer,
* with the scissor state */
cs->scissor = so->scissor;
/* point size per vertex adds a vertex shader output */
cs->point_size_per_vertex = so->point_size_per_vertex;
assert(!so->clip_halfz); /* could be supported with shader magic, actually
D3D z is default on older gc */
return cs;
}
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