s_lines.c revision 9ede048127ea71282fd97e01516dedcfb03e2a23
1e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell/* 2e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * Mesa 3-D graphics library 39ede048127ea71282fd97e01516dedcfb03e2a23Brian * Version: 6.5.3 422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * 59ede048127ea71282fd97e01516dedcfb03e2a23Brian * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * 7e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 8e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * copy of this software and associated documentation files (the "Software"), 9e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * to deal in the Software without restriction, including without limitation 10e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * and/or sell copies of the Software, and to permit persons to whom the 12e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * Software is furnished to do so, subject to the following conditions: 1322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * 14e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * The above copyright notice and this permission notice shall be included 15e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * in all copies or substantial portions of the Software. 1622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * 17e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell */ 24e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 25e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 26e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "glheader.h" 2729b4076f9acff96a867760fc885f5eaeb7586977Brian Paul#include "context.h" 2846b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell#include "colormac.h" 29e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "macros.h" 300070d398d13759adc519f9bc764ffd39bc88890eBrian Paul#include "s_aaline.h" 31cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell#include "s_context.h" 32e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_depth.h" 33cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell#include "s_feedback.h" 34b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul#include "s_lines.h" 35b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul#include "s_span.h" 36e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 37e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 38b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul/* 39b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul * Init the mask[] array to implement a line stipple. 40b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul */ 41b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paulstatic void 42b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paulcompute_stipple_mask( GLcontext *ctx, GLuint len, GLubyte mask[] ) 43b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul{ 44b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul SWcontext *swrast = SWRAST_CONTEXT(ctx); 45b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul GLuint i; 46e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 47b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (i = 0; i < len; i++) { 48b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf; 49b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if ((1 << bit) & ctx->Line.StipplePattern) { 50b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul mask[i] = GL_TRUE; 51b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 52b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else { 53b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul mask[i] = GL_FALSE; 54b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 55b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul swrast->StippleCounter++; 56b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 57b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul} 58e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 59e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 60e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell/* 61b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul * To draw a wide line we can simply redraw the span N times, side by side. 62e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell */ 63b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paulstatic void 64cdb27e8242215271364602995d85607cfc06d441Brian Pauldraw_wide_line( GLcontext *ctx, SWspan *span, GLboolean xMajor ) 65e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell{ 66b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul GLint width, start; 67cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell 68b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul ASSERT(span->end < MAX_WIDTH); 69e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 7054ef88109b3e135f7cc1feabbbc7dbf640a5d8ccKeith Whitwell width = (GLint) CLAMP( ctx->Line._Width, MIN_LINE_WIDTH, MAX_LINE_WIDTH ); 71e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 72b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if (width & 1) 73b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul start = width / 2; 74b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else 75b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul start = width / 2 - 1; 76b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul 77b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if (xMajor) { 7877df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul GLint *y = span->array->y; 79a670c1280b78e6da3b298b61f623e4c733c6be94Brian Paul GLuint i; 80a670c1280b78e6da3b298b61f623e4c733c6be94Brian Paul GLint w; 81b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (w = 0; w < width; w++) { 82b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if (w == 0) { 83b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (i = 0; i < span->end; i++) 8477df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul y[i] -= start; 85b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 86b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else { 87b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (i = 0; i < span->end; i++) 8877df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul y[i]++; 89b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 90a803b0c891404dcd7c376e91f6a033cd4e42abc3Brian Paul if (ctx->Visual.rgbMode) 9145bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_rgba_span(ctx, span); 92b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else 9345bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_index_span(ctx, span); 94b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 95b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 96b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else { 9777df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul GLint *x = span->array->x; 98a670c1280b78e6da3b298b61f623e4c733c6be94Brian Paul GLuint i; 99a670c1280b78e6da3b298b61f623e4c733c6be94Brian Paul GLint w; 100b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (w = 0; w < width; w++) { 101b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if (w == 0) { 102b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (i = 0; i < span->end; i++) 10377df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul x[i] -= start; 104b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 105b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else { 106b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul for (i = 0; i < span->end; i++) 10777df88727cb0a423dd5cb41498c2302d9df4fce7Brian Paul x[i]++; 108b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 109a803b0c891404dcd7c376e91f6a033cd4e42abc3Brian Paul if (ctx->Visual.rgbMode) 11045bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_rgba_span(ctx, span); 111b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else 11245bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_index_span(ctx, span); 113b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 114b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 115e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell} 116e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 117e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 118e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 119b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul/**********************************************************************/ 120b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul/***** Rasterization *****/ 121b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul/**********************************************************************/ 122b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul 12322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul/* Simple color index line (no stipple, width=1, no Z, no fog, no tex)*/ 12422a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME simple_ci_line 12522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_INDEX 12645bc887da226403f2c41077e40ca38b6f60f1359Brian Paul#define RENDER_SPAN(span) _swrast_write_index_span(ctx, &span) 127e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_linetemp.h" 128e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 12922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul/* Simple RGBA index line (no stipple, width=1, no Z, no fog, no tex)*/ 13022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME simple_rgba_line 13122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_RGBA 13245bc887da226403f2c41077e40ca38b6f60f1359Brian Paul#define RENDER_SPAN(span) _swrast_write_rgba_span(ctx, &span); 133e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_linetemp.h" 134e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 135e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 13622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul/* Z, fog, wide, stipple color index line */ 13722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME general_ci_line 13822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_INDEX 13922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_Z 14022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_FOG 14122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define RENDER_SPAN(span) \ 14222a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (ctx->Line.StippleFlag) { \ 14322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul span.arrayMask |= SPAN_MASK; \ 144dc24230de7f913969b52dee3579bb8fa3d50a8c0Karl Schultz compute_stipple_mask(ctx, span.end, span.array->mask); \ 14522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 14654ef88109b3e135f7cc1feabbbc7dbf640a5d8ccKeith Whitwell if (ctx->Line._Width > 1.0) { \ 147dc24230de7f913969b52dee3579bb8fa3d50a8c0Karl Schultz draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ 14822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 14922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else { \ 15045bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_index_span(ctx, &span); \ 151b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul } 152e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_linetemp.h" 153e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 154e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 15522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul/* Z, fog, wide, stipple RGBA line */ 15622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME general_rgba_line 15722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_RGBA 15822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_Z 15922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_FOG 16022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define RENDER_SPAN(span) \ 16122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (ctx->Line.StippleFlag) { \ 16222a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul span.arrayMask |= SPAN_MASK; \ 16322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul compute_stipple_mask(ctx, span.end, span.array->mask); \ 16422a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 16554ef88109b3e135f7cc1feabbbc7dbf640a5d8ccKeith Whitwell if (ctx->Line._Width > 1.0) { \ 166dc24230de7f913969b52dee3579bb8fa3d50a8c0Karl Schultz draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ 16722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 16822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else { \ 16945bc887da226403f2c41077e40ca38b6f60f1359Brian Paul _swrast_write_rgba_span(ctx, &span); \ 170e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 171e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_linetemp.h" 172b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul 173e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 1749ede048127ea71282fd97e01516dedcfb03e2a23Brian/* General-purpose textured line (any/all features). */ 17522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME textured_line 17622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_RGBA 17722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_SPEC 17822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_Z 17922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define INTERP_FOG 1809ede048127ea71282fd97e01516dedcfb03e2a23Brian#define INTERP_ATTRIBS 18122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define RENDER_SPAN(span) \ 18222a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (ctx->Line.StippleFlag) { \ 18322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul span.arrayMask |= SPAN_MASK; \ 18422a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul compute_stipple_mask(ctx, span.end, span.array->mask); \ 18522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 18654ef88109b3e135f7cc1feabbbc7dbf640a5d8ccKeith Whitwell if (ctx->Line._Width > 1.0) { \ 187dc24230de7f913969b52dee3579bb8fa3d50a8c0Karl Schultz draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ 18822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } \ 18922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else { \ 190a803b0c891404dcd7c376e91f6a033cd4e42abc3Brian Paul _swrast_write_rgba_span(ctx, &span); \ 191e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 192e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#include "s_linetemp.h" 193b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul 194e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 195e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 19622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paulvoid 19722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul_swrast_add_spec_terms_line( GLcontext *ctx, 19822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul const SWvertex *v0, 19922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul const SWvertex *v1 ) 20046b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell{ 20146b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell SWvertex *ncv0 = (SWvertex *)v0; 20246b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell SWvertex *ncv1 = (SWvertex *)v1; 20346b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell GLchan c[2][4]; 20446b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell COPY_CHAN4( c[0], ncv0->color ); 20546b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell COPY_CHAN4( c[1], ncv1->color ); 20646b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell ACC_3V( ncv0->color, ncv0->specular ); 20746b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell ACC_3V( ncv1->color, ncv1->specular ); 20846b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell SWRAST_CONTEXT(ctx)->SpecLine( ctx, ncv0, ncv1 ); 20946b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell COPY_CHAN4( ncv0->color, c[0] ); 21046b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell COPY_CHAN4( ncv1->color, c[1] ); 21146b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell} 21246b0988c673b28e072fd0cbf477632a9ab6f9f18Keith Whitwell 213e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 214e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#ifdef DEBUG 215ba41b8afb1b40b967cf5c0e604bbf09793eb8feeBrian Paulextern void 216ba41b8afb1b40b967cf5c0e604bbf09793eb8feeBrian Paul_mesa_print_line_function(GLcontext *ctx); /* silence compiler warning */ 217e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwellvoid 218e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell_mesa_print_line_function(GLcontext *ctx) 219e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell{ 220cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell SWcontext *swrast = SWRAST_CONTEXT(ctx); 221cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell 22268a7ee5cbbc93c0e746dc843e0fcc1e65ad1baf6Brian Paul _mesa_printf("Line Func == "); 22322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (swrast->Line == simple_ci_line) 22422a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul _mesa_printf("simple_ci_line\n"); 22522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else if (swrast->Line == simple_rgba_line) 22622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul _mesa_printf("simple_rgba_line\n"); 22722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else if (swrast->Line == general_ci_line) 22822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul _mesa_printf("general_ci_line\n"); 22922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else if (swrast->Line == general_rgba_line) 23022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul _mesa_printf("general_rgba_line\n"); 23122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else if (swrast->Line == textured_line) 23222a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul _mesa_printf("textured_line\n"); 233e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell else 234b5b8d22c4ee921dff99b898a5907023b20670a27Brian Paul _mesa_printf("Driver func %p\n", (void *(*)()) swrast->Line); 235e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell} 236e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell#endif 237e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 238e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 239e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 240233aafbb30594d0193b00705d0532be97060ebd1Brian Paul#ifdef DEBUG 241233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 242233aafbb30594d0193b00705d0532be97060ebd1Brian Paul/* record the current line function name */ 243233aafbb30594d0193b00705d0532be97060ebd1Brian Paulstatic const char *lineFuncName = NULL; 244233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 245233aafbb30594d0193b00705d0532be97060ebd1Brian Paul#define USE(lineFunc) \ 246233aafbb30594d0193b00705d0532be97060ebd1Brian Pauldo { \ 247233aafbb30594d0193b00705d0532be97060ebd1Brian Paul lineFuncName = #lineFunc; \ 24868a7ee5cbbc93c0e746dc843e0fcc1e65ad1baf6Brian Paul /*_mesa_printf("%s\n", lineFuncName);*/ \ 249233aafbb30594d0193b00705d0532be97060ebd1Brian Paul swrast->Line = lineFunc; \ 250233aafbb30594d0193b00705d0532be97060ebd1Brian Paul} while (0) 251233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 252233aafbb30594d0193b00705d0532be97060ebd1Brian Paul#else 253233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 254c123a9b2edc5852cb50485f344219508254081a8Brian Paul#define USE(lineFunc) swrast->Line = lineFunc 255233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 256233aafbb30594d0193b00705d0532be97060ebd1Brian Paul#endif 257233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 258233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 259233aafbb30594d0193b00705d0532be97060ebd1Brian Paul 260e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell/* 261e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * Determine which line drawing function to use given the current 262e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * rendering context. 263e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * 264e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * Please update the summary flag _SWRAST_NEW_LINE if you add or remove 265e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell * tests to this code. 266e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell */ 267e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwellvoid 268cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell_swrast_choose_line( GLcontext *ctx ) 269e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell{ 270cd03ed4f54444d96e4e47cdb118a3dfd94d92bb0Keith Whitwell SWcontext *swrast = SWRAST_CONTEXT(ctx); 271b6bcae5698df88f7730d40004ce7ce0462e97a20Brian Paul const GLboolean rgbmode = ctx->Visual.rgbMode; 272e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 273b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul if (ctx->RenderMode == GL_RENDER) { 274e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell if (ctx->Line.SmoothFlag) { 275e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell /* antialiased lines */ 2760070d398d13759adc519f9bc764ffd39bc88890eBrian Paul _swrast_choose_aa_line_function(ctx); 27764b4298181373d64ef2226935f70e9062536de8bBrian Paul ASSERT(swrast->Line); 278e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 279ccea3ff8a9eae16d2ca11b9cedef1318cffe3fb4Brian else if (ctx->Texture._EnabledCoordUnits 280ccea3ff8a9eae16d2ca11b9cedef1318cffe3fb4Brian || ctx->FragmentProgram._Current) { 28122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul /* textured lines */ 2829ede048127ea71282fd97e01516dedcfb03e2a23Brian USE(textured_line); 283e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 284dcf4c17fb1624af47181c63af4c3ad29f919c17aBrian Paul else if (ctx->Depth.Test || swrast->_FogEnabled || ctx->Line._Width != 1.0 28522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul || ctx->Line.StippleFlag) { 28622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul /* no texture, but Z, fog, width>1, stipple, etc. */ 28722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (rgbmode) 28822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul USE(general_rgba_line); 28922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else 29022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul USE(general_ci_line); 29122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul } 292e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell else { 29322a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul /* simplest lines */ 29422a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul if (rgbmode) 29522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul USE(simple_rgba_line); 29622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul else 29722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul USE(simple_ci_line); 298e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 299e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 300b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul else if (ctx->RenderMode == GL_FEEDBACK) { 30145bc887da226403f2c41077e40ca38b6f60f1359Brian Paul USE(_swrast_feedback_line); 302e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 303e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell else { 304b37a084357dd08573b86d6d8c5ba43d65bdc1bd7Brian Paul ASSERT(ctx->RenderMode == GL_SELECT); 30545bc887da226403f2c41077e40ca38b6f60f1359Brian Paul USE(_swrast_select_line); 306e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell } 307e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell 308e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell /*_mesa_print_line_function(ctx);*/ 309e3a051e0538a605551f4d58294c94f5eb00ed07fKeith Whitwell} 310