From 8e4a95a93d15a6707a29454cd47e10b08314cda2 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Thu, 24 May 2007 10:41:34 +0100 Subject: First version of the softpipe rasterizer. This will flesh out to hopefully acheive 3 things: - New software rasterizer for mesa - New driver model for mesa & dri with much smaller drivers - The basis for the cell driver. It's got a long way to go yet, but will at least run trivial/tri.c. --- src/mesa/softpipe/generic/g_context.h | 149 ++++++++++++++++++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 src/mesa/softpipe/generic/g_context.h (limited to 'src/mesa/softpipe/generic/g_context.h') diff --git a/src/mesa/softpipe/generic/g_context.h b/src/mesa/softpipe/generic/g_context.h new file mode 100644 index 0000000000..24d467f2c3 --- /dev/null +++ b/src/mesa/softpipe/generic/g_context.h @@ -0,0 +1,149 @@ +/************************************************************************** + * + * 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_CONTEXT_H +#define G_CONTEXT_H + +#include "glheader.h" + +#include "softpipe/sp_state.h" +#include "softpipe/sp_context.h" + + + +struct generic_surface; +struct draw_context; +struct prim_stage; + + +enum interp_mode { + INTERP_CONSTANT, + INTERP_LINEAR, + INTERP_PERSPECTIVE +}; + + +#define G_NEW_VIEWPORT 0x1 +#define G_NEW_SETUP 0x2 +#define G_NEW_FS 0x4 +#define G_NEW_BLEND 0x8 +#define G_NEW_CBUF 0x10 +#define G_NEW_CLIP 0x20 +#define G_NEW_SCISSOR 0x40 +#define G_NEW_STIPPLE 0x80 + + + +struct generic_context { + struct softpipe_context softpipe; + + + /* The most recent drawing state as set by the driver: + */ + struct softpipe_viewport viewport; + struct softpipe_setup_state setup; + struct softpipe_fs_state fs; + struct softpipe_blend_state blend; + struct softpipe_surface cbuf; + struct softpipe_clip_state clip; + struct softpipe_scissor_rect scissor; + struct softpipe_poly_stipple poly_stipple; + GLuint dirty; + + + /* Cbuf derived state??? + */ + struct generic_surface *cbuf_surface; + + /* Clip derived state: + */ + GLfloat plane[12][4]; + GLuint nr_planes; + + /* Setup derived state. TODO: this should be passed in the program + * tokens as parameters to DECL instructions. + * + * For now we just set colors to CONST on flatshade, textures to + * perspective always and everything else to linear. + */ + enum interp_mode interp[VF_ATTRIB_MAX]; + + + /* FS + setup derived state: + */ + GLuint fp_attr_to_slot[VF_ATTRIB_MAX]; + GLuint vf_attr_to_slot[VF_ATTRIB_MAX]; + GLuint nr_attrs; + GLuint nr_frag_attrs; + GLuint attr_mask; + + GLboolean need_z; + GLboolean need_w; + + /* Stipple derived state: + */ + GLubyte stipple_masks[16][16]; + + + /* The software clipper/setup engine. + */ + struct { + struct prim_stage *setup; + struct prim_stage *unfilled; + struct prim_stage *twoside; + struct prim_stage *clip; + struct prim_stage *flatshade; + struct prim_stage *offset; + struct prim_stage *cull; + + struct prim_stage *first; + + GLenum prim; + GLuint vertex_size; + } prim; + + /* Temp kludge: + */ + struct draw_context *draw; +}; + + + + +static INLINE struct generic_context * +generic_context( struct softpipe_context *softpipe ) +{ + return (struct generic_context *)softpipe; +} + + + + +#endif -- cgit v1.2.3