1 /* 2 * Copyright (c) 2012-2015 Etnaviv Project 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sub license, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #include "etnaviv_rasterizer.h" 25 #include "etnaviv_context.h" 26 #include "etnaviv_screen.h" 27 28 #include "hw/common.xml.h" 29 30 #include "etnaviv_translate.h" 31 #include "util/u_math.h" 32 #include "util/u_memory.h" 33 34 void * 35 etna_rasterizer_state_create(struct pipe_context *pctx, 36 const struct pipe_rasterizer_state *so) 37 { 38 struct etna_rasterizer_state *cs; 39 struct etna_context *ctx = etna_context(pctx); 40 41 /* Disregard flatshading on GC880+, as a HW bug there seem to disable all 42 * varying interpolation if it's enabled */ 43 bool flatshade = ctx->screen->model < 880 ? so->flatshade : false; 44 45 if (so->fill_front != so->fill_back) 46 DBG("Different front and back fill mode not supported"); 47 48 cs = CALLOC_STRUCT(etna_rasterizer_state); 49 if (!cs) 50 return NULL; 51 52 cs->base = *so; 53 54 cs->PA_CONFIG = (flatshade ? VIVS_PA_CONFIG_SHADE_MODEL_FLAT : VIVS_PA_CONFIG_SHADE_MODEL_SMOOTH) | 55 translate_cull_face(so->cull_face, so->front_ccw) | 56 translate_polygon_mode(so->fill_front) | 57 COND(so->point_quad_rasterization, VIVS_PA_CONFIG_POINT_SPRITE_ENABLE) | 58 COND(so->point_size_per_vertex, VIVS_PA_CONFIG_POINT_SIZE_ENABLE) | 59 COND(VIV_FEATURE(ctx->screen, chipMinorFeatures1, WIDE_LINE), VIVS_PA_CONFIG_WIDE_LINE); 60 cs->PA_LINE_WIDTH = fui(so->line_width / 2.0f); 61 cs->PA_POINT_SIZE = fui(so->point_size / 2.0f); 62 cs->SE_DEPTH_SCALE = fui(so->offset_scale); 63 cs->SE_DEPTH_BIAS = fui(so->offset_units) / 65535.0f; 64 cs->SE_CONFIG = COND(so->line_last_pixel, VIVS_SE_CONFIG_LAST_PIXEL_ENABLE); 65 /* XXX anything else? */ 66 /* XXX bottom_edge_rule */ 67 cs->PA_SYSTEM_MODE = 68 COND(so->half_pixel_center, VIVS_PA_SYSTEM_MODE_UNK0 | VIVS_PA_SYSTEM_MODE_UNK4); 69 70 /* so->scissor overrides the scissor, defaulting to the whole framebuffer, 71 * with the scissor state */ 72 cs->scissor = so->scissor; 73 74 /* point size per vertex adds a vertex shader output */ 75 cs->point_size_per_vertex = so->point_size_per_vertex; 76 77 assert(!so->clip_halfz); /* could be supported with shader magic, actually 78 D3D z is default on older gc */ 79 80 return cs; 81 } 82
