1 /* 2 * Copyright 2009 Intel Corporation 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, sublicense, 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 next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * 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 NONINFRINGEMENT. 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 DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <eric (at) anholt.net> 25 * 26 */ 27 28 #include "brw_context.h" 29 #include "brw_state.h" 30 #include "brw_defines.h" 31 #include "compiler/brw_eu_defines.h" 32 #include "brw_util.h" 33 #include "intel_batchbuffer.h" 34 #include "main/fbobject.h" 35 #include "main/framebuffer.h" 36 37 bool 38 brw_is_drawing_points(const struct brw_context *brw) 39 { 40 /* Determine if the primitives *reaching the SF* are points */ 41 /* _NEW_POLYGON */ 42 if (brw->ctx.Polygon.FrontMode == GL_POINT || 43 brw->ctx.Polygon.BackMode == GL_POINT) { 44 return true; 45 } 46 47 if (brw->gs.base.prog_data) { 48 /* BRW_NEW_GS_PROG_DATA */ 49 return brw_gs_prog_data(brw->gs.base.prog_data)->output_topology == 50 _3DPRIM_POINTLIST; 51 } else if (brw->tes.base.prog_data) { 52 /* BRW_NEW_TES_PROG_DATA */ 53 return brw_tes_prog_data(brw->tes.base.prog_data)->output_topology == 54 BRW_TESS_OUTPUT_TOPOLOGY_POINT; 55 } else { 56 /* BRW_NEW_PRIMITIVE */ 57 return brw->primitive == _3DPRIM_POINTLIST; 58 } 59 } 60 61 bool 62 brw_is_drawing_lines(const struct brw_context *brw) 63 { 64 /* Determine if the primitives *reaching the SF* are points */ 65 /* _NEW_POLYGON */ 66 if (brw->ctx.Polygon.FrontMode == GL_LINE || 67 brw->ctx.Polygon.BackMode == GL_LINE) { 68 return true; 69 } 70 71 if (brw->gs.base.prog_data) { 72 /* BRW_NEW_GS_PROG_DATA */ 73 return brw_gs_prog_data(brw->gs.base.prog_data)->output_topology == 74 _3DPRIM_LINESTRIP; 75 } else if (brw->tes.base.prog_data) { 76 /* BRW_NEW_TES_PROG_DATA */ 77 return brw_tes_prog_data(brw->tes.base.prog_data)->output_topology == 78 BRW_TESS_OUTPUT_TOPOLOGY_LINE; 79 } else { 80 /* BRW_NEW_PRIMITIVE */ 81 switch (brw->primitive) { 82 case _3DPRIM_LINELIST: 83 case _3DPRIM_LINESTRIP: 84 case _3DPRIM_LINELOOP: 85 return true; 86 } 87 } 88 return false; 89 } 90 91
