brw_clip.c revision 125bd4cae51c6deaacd2e90f14931c2052f146ab
19f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt/* 29f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Copyright (C) Intel Corp. 2006. All Rights Reserved. 39f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to 49f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt develop this 3D driver. 59f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 69f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Permission is hereby granted, free of charge, to any person obtaining 79f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt a copy of this software and associated documentation files (the 89f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt "Software"), to deal in the Software without restriction, including 99f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt without limitation the rights to use, copy, modify, merge, publish, 109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt distribute, sublicense, and/or sell copies of the Software, and to 119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt permit persons to whom the Software is furnished to do so, subject to 129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt the following conditions: 139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 149f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt The above copyright notice and this permission notice (including the 159f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt next paragraph) shall be included in all copies or substantial 169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt portions of the Software. 179f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt **********************************************************************/ 279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* 289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * Authors: 299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * Keith Whitwell <keith@tungstengraphics.com> 309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 319f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 329f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "glheader.h" 339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "macros.h" 349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "enums.h" 359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "intel_batchbuffer.h" 379f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 389f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_defines.h" 399f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_context.h" 409f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_eu.h" 419f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_util.h" 429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_state.h" 439f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_clip.h" 449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#define FRONT_UNFILLED_BIT 0x1 479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#define BACK_UNFILLED_BIT 0x2 489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 509f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtstatic void compile_clip_prog( struct brw_context *brw, 519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct brw_clip_prog_key *key ) 529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct brw_clip_compile c; 549f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt const GLuint *program; 559f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint program_size; 569f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint delta; 579f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint i; 589f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt memset(&c, 0, sizeof(c)); 609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Begin the compilation: 629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_init_compile(&c.func); 649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 651b9f78195f62959601d440475a6cbba5e8046813Eric Anholt c.func.single_program_flow = 1; 661b9f78195f62959601d440475a6cbba5e8046813Eric Anholt 679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.key = *key; 689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Need to locate the two positions present in vertex + header. 719f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * These are currently hardcoded: 729f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 739f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.header_position_offset = ATTR_SIZE; 749f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 759f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt for (i = 0, delta = REG_SIZE; i < VERT_RESULT_MAX; i++) 769f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (c.key.attrs & (1<<i)) { 779f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.offset[i] = delta; 789f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt delta += ATTR_SIZE; 799f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 809f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 819f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.nr_attrs = brw_count_bits(c.key.attrs); 829f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.nr_regs = (c.nr_attrs + 1) / 2 + 1; /* are vertices packed, or reg-aligned? */ 839f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.nr_bytes = c.nr_regs * REG_SIZE; 849f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 859f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt c.prog_data.clip_mode = c.key.clip_mode; /* XXX */ 869f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 879f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* For some reason the thread is spawned with only 4 channels 889f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * unmasked. 899f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 909f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_set_mask_control(&c.func, BRW_MASK_DISABLE); 919f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 929f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 939f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Would ideally have the option of producing a program which could 949f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * do all three: 959f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 969f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt switch (key->primitive) { 979f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_TRIANGLES: 989f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (key->do_unfilled) 999f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_emit_unfilled_clip( &c ); 1009f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt else 1019f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_emit_tri_clip( &c ); 1029f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1039f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINES: 1049f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_emit_line_clip( &c ); 1059f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1069f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_POINTS: 1079f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw_emit_point_clip( &c ); 1089f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1099f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 1109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt assert(0); 1119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return; 1129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1149f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1159f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* get the program 1179f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt program = brw_get_program(&c.func, &program_size); 1199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Upload 1219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw->clip.prog_gs_offset = brw_upload_cache( &brw->cache[BRW_CLIP_PROG], 1239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt &c.key, 1249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sizeof(c.key), 1259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt program, 1269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt program_size, 1279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt &c.prog_data, 1289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt &brw->clip.prog_data ); 1299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 1309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 131125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt 132125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholtstatic GLboolean search_cache( struct brw_context *brw, 133125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt struct brw_clip_prog_key *key ) 134125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt{ 135125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt return brw_search_cache(&brw->cache[BRW_CLIP_PROG], 136125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt key, sizeof(*key), 137125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt &brw->clip.prog_data, 138125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt &brw->clip.prog_gs_offset); 139125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt} 140125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt 141125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt 142125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt 143125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt 1449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt/* Calculate interpolants for triangle and line rasterization. 1459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtstatic void upload_clip_prog( struct brw_context *brw ) 1479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 1489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLcontext *ctx = &brw->intel.ctx; 1499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct brw_clip_prog_key key; 1509f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt memset(&key, 0, sizeof(key)); 1529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Populate the key: 1549f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1559f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* BRW_NEW_REDUCED_PRIMITIVE */ 1569f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.primitive = brw->intel.reduced_primitive; 1579f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* CACHE_NEW_VS_PROG */ 1589f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.attrs = brw->vs.prog_data->outputs_written; 1599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* _NEW_LIGHT */ 1609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.do_flat_shading = (brw->attribs.Light->ShadeModel == GL_FLAT); 1619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* _NEW_TRANSFORM */ 1629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.nr_userclip = brw_count_bits(brw->attribs.Transform->ClipPlanesEnabled); 1639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.clip_mode = BRW_CLIPMODE_NORMAL; 1649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* _NEW_POLYGON */ 1669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (key.primitive == GL_TRIANGLES) { 1679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (brw->attribs.Polygon->CullFaceMode == GL_FRONT_AND_BACK) 1689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.clip_mode = BRW_CLIPMODE_REJECT_ALL; 1699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt else { 1709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint fill_front = CLIP_CULL; 1719f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint fill_back = CLIP_CULL; 1729f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint offset_front = 0; 1739f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt GLuint offset_back = 0; 1749f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1759f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (!brw->attribs.Polygon->CullFlag || 1769f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw->attribs.Polygon->CullFaceMode != GL_FRONT) { 1779f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt switch (brw->attribs.Polygon->FrontMode) { 1789f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_FILL: 1799f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_front = CLIP_FILL; 1809f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_front = 0; 1819f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1829f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINE: 1839f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.do_unfilled = 1; 1849f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_front = CLIP_LINE; 1859f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_front = brw->attribs.Polygon->OffsetLine; 1869f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1879f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_POINT: 1889f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.do_unfilled = 1; 1899f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_front = CLIP_POINT; 1909f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_front = brw->attribs.Polygon->OffsetPoint; 1919f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1929f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1939f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1949f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1959f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (!brw->attribs.Polygon->CullFlag || 1969f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw->attribs.Polygon->CullFaceMode != GL_BACK) { 1979f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt switch (brw->attribs.Polygon->BackMode) { 1989f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_FILL: 1999f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_back = CLIP_FILL; 2009f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_back = 0; 2019f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 2029f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINE: 2039f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.do_unfilled = 1; 2049f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_back = CLIP_LINE; 2059f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_back = brw->attribs.Polygon->OffsetLine; 2069f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 2079f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_POINT: 2089f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.do_unfilled = 1; 2099f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt fill_back = CLIP_POINT; 2109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt offset_back = brw->attribs.Polygon->OffsetPoint; 2119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 2129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2149f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2153ee6a77e97f7d2996f8fffdbb4787a9589189b39Xiang, Haihao if (brw->attribs.Polygon->BackMode != GL_FILL || 2163ee6a77e97f7d2996f8fffdbb4787a9589189b39Xiang, Haihao brw->attribs.Polygon->FrontMode != GL_FILL) 2173ee6a77e97f7d2996f8fffdbb4787a9589189b39Xiang, Haihao key.do_unfilled = 1; 2183ee6a77e97f7d2996f8fffdbb4787a9589189b39Xiang, Haihao 2199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Most cases the fixed function units will handle. Cases where 2209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * one or more polygon faces are unfilled will require help: 2219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (key.do_unfilled) { 2239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.clip_mode = BRW_CLIPMODE_CLIP_NON_REJECTED; 2249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (offset_back || offset_front) { 2269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* _NEW_POLYGON, _NEW_BUFFERS */ 2279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_units = brw->attribs.Polygon->OffsetUnits * brw->intel.polygon_offset_scale; 2289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_factor = brw->attribs.Polygon->OffsetFactor * ctx->DrawBuffer->_MRD; 2299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2319f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt switch (brw->attribs.Polygon->FrontFace) { 2329f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_CCW: 2339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_ccw = fill_front; 2349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_cw = fill_back; 2359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_ccw = offset_front; 2369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_cw = offset_back; 2379f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (brw->attribs.Light->Model.TwoSide && 2389f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_cw != CLIP_CULL) 2399f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.copy_bfc_cw = 1; 2409f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 2419f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_CW: 2429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_cw = fill_front; 2439f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_ccw = fill_back; 2449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_cw = offset_front; 2459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.offset_ccw = offset_back; 2469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt if (brw->attribs.Light->Model.TwoSide && 2479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.fill_ccw != CLIP_CULL) 2489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt key.copy_bfc_ccw = 1; 2499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 2509f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2549f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 255125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt if (!search_cache(brw, &key)) 256125bd4cae51c6deaacd2e90f14931c2052f146abEric Anholt compile_clip_prog( brw, &key ); 2579f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 2589f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtconst struct brw_tracked_state brw_clip_prog = { 2619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .dirty = { 2629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .mesa = (_NEW_LIGHT | 2639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt _NEW_TRANSFORM | 2649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt _NEW_POLYGON | 2659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt _NEW_BUFFERS), 2669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .brw = (BRW_NEW_REDUCED_PRIMITIVE), 2679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .cache = CACHE_NEW_VS_PROG 2689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt }, 2699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .update = upload_clip_prog 2709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt}; 271