1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Mesa 3-D graphics library 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Version: 6.5 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice shall be included 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * in all copies or substantial portions of the Software. 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Authors: 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Keith Whitwell <keith@tungstengraphics.com> 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Render whole vertex buffers, including projection of vertices from 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * clip space and clipping of primitives. 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * This file makes calls to project vertices and to the point, line 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and triangle rasterizers via the function pointers: 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * context->Driver.Render.* 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/glheader.h" 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/context.h" 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/enums.h" 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/macros.h" 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/imports.h" 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/mtypes.h" 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "math/m_xform.h" 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_pipeline.h" 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Clip single primitives */ 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define W(i) coord[i][3] 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define Z(i) coord[i][2] 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define Y(i) coord[i][1] 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define X(i) coord[i][0] 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define SIZE 4 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TAG(x) x##_4 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_vb_cliptmp.h" 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Clip and render whole begin/end objects */ 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL) 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx] 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* This does NOT include the CLIP_USER_BIT! */ 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define CLIPMASK (CLIP_FRUSTUM_BITS | CLIP_CULL_BIT) 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Vertices, with the possibility of clipping. 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_POINTS( start, count ) \ 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Points( ctx, start, count ) 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_LINE( v1, v2 ) \ 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgdo { \ 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c1 = mask[v1], c2 = mask[v2]; \ 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte ormask = c1|c2; \ 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!ormask) \ 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LineFunc( ctx, v1, v2 ); \ 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (!(c1 & c2 & CLIPMASK)) \ 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org clip_line_4( ctx, v1, v2, ormask ); \ 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} while (0) 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_TRI( v1, v2, v3 ) \ 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgdo { \ 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c1 = mask[v1], c2 = mask[v2], c3 = mask[v3]; \ 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte ormask = c1|c2|c3; \ 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!ormask) \ 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TriangleFunc( ctx, v1, v2, v3 ); \ 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (!(c1 & c2 & c3 & CLIPMASK)) \ 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org clip_tri_4( ctx, v1, v2, v3, ormask ); \ 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} while (0) 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_QUAD( v1, v2, v3, v4 ) \ 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgdo { \ 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c1 = mask[v1], c2 = mask[v2]; \ 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c3 = mask[v3], c4 = mask[v4]; \ 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte ormask = c1|c2|c3|c4; \ 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!ormask) \ 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org QuadFunc( ctx, v1, v2, v3, v4 ); \ 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (!(c1 & c2 & c3 & c4 & CLIPMASK)) \ 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org clip_quad_4( ctx, v1, v2, v3, v4, ormask ); \ 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} while (0) 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define LOCAL_VARS \ 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); \ 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &tnl->vb; \ 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLuint * const elt = VB->Elts; \ 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLubyte *mask = VB->ClipMask; \ 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLuint sz = VB->ClipPtr->size; \ 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_line_func LineFunc = tnl->Driver.Render.Line; \ 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \ 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \ 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLboolean stipple = ctx->Line.StippleFlag; \ 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) (LineFunc && TriangleFunc && QuadFunc); \ 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) elt; (void) mask; (void) sz; (void) stipple; 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TAG(x) clip_##x##_verts 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x ) 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx ) 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define PRESERVE_VB_DEFS 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_vb_rendertmp.h" 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Elts, with the possibility of clipping. 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#undef ELT 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#undef TAG 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define ELT(x) elt[x] 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TAG(x) clip_##x##_elts 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_vb_rendertmp.h" 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* TODO: do this for all primitives, verts and elts: 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void clip_elt_triangles( struct gl_context *ctx, 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint start, 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint count, 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint flags ) 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl_render_func render_tris = tnl->Driver.Render.PrimTabElts[GL_TRIANGLES]; 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &tnl->vb; 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLuint * const elt = VB->Elts; 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte *mask = VB->ClipMask; 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint last = count-2; 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint j; 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) flags; 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.PrimitiveNotify( ctx, GL_TRIANGLES ); 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (j=start; j < last; j+=3 ) { 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c1 = mask[elt[j]]; 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c2 = mask[elt[j+1]]; 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte c3 = mask[elt[j+2]]; 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte ormask = c1|c2|c3; 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (ormask) { 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (start < j) 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org render_tris( ctx, start, j, 0 ); 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!(c1&c2&c3&CLIPMASK)) 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org clip_tri_4( ctx, elt[j], elt[j+1], elt[j+2], ormask ); 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org start = j+3; 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (start < j) 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org render_tris( ctx, start, j, 0 ); 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Render whole begin/end objects */ 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL) 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx] 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Vertices, no clipping. 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_POINTS( start, count ) \ 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Points( ctx, start, count ) 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_LINE( v1, v2 ) \ 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LineFunc( ctx, v1, v2 ) 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_TRI( v1, v2, v3 ) \ 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TriangleFunc( ctx, v1, v2, v3 ) 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_QUAD( v1, v2, v3, v4 ) \ 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org QuadFunc( ctx, v1, v2, v3, v4 ) 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TAG(x) _tnl_##x##_verts 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define LOCAL_VARS \ 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); \ 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &tnl->vb; \ 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLuint * const elt = VB->Elts; \ 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_line_func LineFunc = tnl->Driver.Render.Line; \ 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \ 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \ 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLboolean stipple = ctx->Line.StippleFlag; \ 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) (LineFunc && TriangleFunc && QuadFunc); \ 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) elt; (void) stipple 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx ) 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x ) 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define RENDER_TAB_QUALIFIER 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define PRESERVE_VB_DEFS 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_vb_rendertmp.h" 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Elts, no clipping. 227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#undef ELT 229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TAG(x) _tnl_##x##_elts 230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define ELT(x) elt[x] 231f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_vb_rendertmp.h" 232f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 233f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 234f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 235f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Helper functions for drivers */ 236f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 237f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 238f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid _tnl_RenderClippedPolygon( struct gl_context *ctx, const GLuint *elts, GLuint n ) 239f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 240f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); 241f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &tnl->vb; 242f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint *tmp = VB->Elts; 243f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 244f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org VB->Elts = (GLuint *)elts; 245f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END ); 246f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org VB->Elts = tmp; 247f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 248f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 249f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid _tnl_RenderClippedLine( struct gl_context *ctx, GLuint ii, GLuint jj ) 250f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 251f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); 252f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Line( ctx, ii, jj ); 253f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 254f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 255f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 256f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 257f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 258f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Clip and render whole vertex buffers */ 259f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 260f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 261f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 262f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic GLboolean run_render( struct gl_context *ctx, 263f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tnl_pipeline_stage *stage ) 264f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 265f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org TNLcontext *tnl = TNL_CONTEXT(ctx); 266f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &tnl->vb; 267f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl_render_func *tab; 268f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLint pass = 0; 269f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 270f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Allow the drivers to lock before projected verts are built so 271f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * that window coordinates are guarenteed not to change before 272f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * rendering. 273f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 274f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Start); 275f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 276f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Start( ctx ); 277f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 278f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.BuildVertices); 279f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.PrimitiveNotify); 280f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Points); 281f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Line); 282f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Triangle); 283f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Quad); 284f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.ResetLineStipple); 285f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Interp); 286f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.CopyPV); 287f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.ClippedLine); 288f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.ClippedPolygon); 289f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(tnl->Driver.Render.Finish); 290f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 291f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.BuildVertices( ctx, 0, VB->Count, ~0 ); 292f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 293f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (VB->ClipOrMask) { 294f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tab = VB->Elts ? clip_render_tab_elts : clip_render_tab_verts; 295f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org clip_render_tab_elts[GL_TRIANGLES] = clip_elt_triangles; 296f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 297f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else { 298f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tab = (VB->Elts ? 299f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.PrimTabElts : 300f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.PrimTabVerts); 301f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 302f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 303f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org do 304f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 305f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint i; 306f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 307f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0 ; i < VB->PrimitiveCount ; i++) 308f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 309f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint prim = _tnl_translate_prim(&VB->Primitive[i]); 310f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint start = VB->Primitive[i].start; 311f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint length = VB->Primitive[i].count; 312f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 313f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert((prim & PRIM_MODE_MASK) <= GL_POLYGON); 314f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 315f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (MESA_VERBOSE & VERBOSE_PRIMS) 316f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_debug(NULL, "MESA prim %s %d..%d\n", 317f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_lookup_enum_by_nr(prim & PRIM_MODE_MASK), 318f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org start, start+length); 319f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 320f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (length) 321f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tab[prim & PRIM_MODE_MASK]( ctx, start, start + length, prim ); 322f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 323f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } while (tnl->Driver.Render.Multipass && 324f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Multipass( ctx, ++pass )); 325f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 326f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tnl->Driver.Render.Finish( ctx ); 327f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 328f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return GL_FALSE; /* finished the pipe */ 329f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 330f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 331f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 332f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 333f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Render pipeline stage */ 334f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**********************************************************************/ 335f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 336f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 337f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 338f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 339f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 340f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgconst struct tnl_pipeline_stage _tnl_render_stage = 341f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 342f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "render", /* name */ 343f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, /* private data */ 344f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, /* creator */ 345f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, /* destructor */ 346f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, /* validate */ 347f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org run_render /* run */ 348f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 349