From 6393cda6766b707ef01e925d378239a66d143ae0 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Thu, 14 Jun 2007 18:11:48 +0100 Subject: Renamed softpipe directories and files to something less confusing. softpipe/state_tracker --> state_tracker/ softpipe/ --> pipe/ softpipe/generic --> pipe/softpipe/ I don't think pipe is a great name, but I disliked all the others too. Luckily it's fairly easy to rename with git, so this can be revisited later. --- src/mesa/pipe/softpipe/sp_headers.h | 116 ++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 src/mesa/pipe/softpipe/sp_headers.h (limited to 'src/mesa/pipe/softpipe/sp_headers.h') diff --git a/src/mesa/pipe/softpipe/sp_headers.h b/src/mesa/pipe/softpipe/sp_headers.h new file mode 100644 index 0000000000..96ff52a453 --- /dev/null +++ b/src/mesa/pipe/softpipe/sp_headers.h @@ -0,0 +1,116 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell + */ +#ifndef G_HEADERS_H +#define G_HEADERS_H + +#define PRIM_POINT 1 +#define PRIM_LINE 2 +#define PRIM_TRI 3 + +struct prim_header { + GLfloat det; + struct vertex_header *v[3]; +}; + +/* Carry some useful information around with the vertices in the prim + * pipe. + */ +struct vertex_header { + GLuint clipmask:12; + GLuint edgeflag:1; + GLuint pad:19; + + GLfloat clip[4]; + + GLfloat data[][4]; /* Note variable size */ +}; + + + + + +/* The rasterizer generates 2x2 quads of fragment and feeds them to + * the current fp_machine (see below). + */ +#define QUAD_BOTTOM_LEFT 0 +#define QUAD_BOTTOM_RIGHT 1 +#define QUAD_TOP_LEFT 2 +#define QUAD_TOP_RIGHT 3 +#define QUAD_SIZE (2*2) + +#define MASK_BOTTOM_LEFT 0x1 +#define MASK_BOTTOM_RIGHT 0x2 +#define MASK_TOP_LEFT 0x4 +#define MASK_TOP_RIGHT 0x8 +#define MASK_ALL 0xf + + +#define NUM_CHANNELS 4 /* avoid confusion between 4 pixels and 4 channels */ + + +struct setup_coefficient { + GLfloat a0[NUM_CHANNELS]; /* in an xyzw layout */ + GLfloat dadx[NUM_CHANNELS]; + GLfloat dady[NUM_CHANNELS]; +}; + + + +/* Encodes everything we need to know about a 2x2 pixel block. Uses + * "Channel-Serial" or "SoA" layout. + * + * Will expand to include non-attribute things like AA coverage and + * maybe prefetched depth from the depth buffer. + */ +struct quad_header { + GLint x0; + GLint y0; + GLuint mask; + GLuint facing; /**< Front or back facing? */ + + struct { + GLfloat color[4][QUAD_SIZE]; /* rrrr, gggg, bbbb, aaaa */ + GLfloat depth[QUAD_SIZE]; + } outputs; + + const struct setup_coefficient *coef; + + const enum interp_mode *interp; /* XXX: this information should be + * encoded in fragment program DECL + * statements. */ + + GLuint nr_attrs; +}; + + + + + +#endif -- cgit v1.2.3