/************************************************************************** * * 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 "pipe/p_state.h" #include "pipe/p_context.h" struct softpipe_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_POINT 0x10 #define G_NEW_CLIP 0x20 #define G_NEW_SCISSOR 0x40 #define G_NEW_STIPPLE 0x80 #define G_NEW_FRAMEBUFFER 0x100 #define G_NEW_ALPHA_TEST 0x200 #define G_NEW_DEPTH_TEST 0x400 struct softpipe_context { struct pipe_context pipe; /* The most recent drawing state as set by the driver: */ struct pipe_framebuffer_state framebuffer; struct pipe_viewport viewport; struct pipe_setup_state setup; struct pipe_fs_state fs; struct pipe_blend_state blend; struct pipe_alpha_test_state alpha_test; struct pipe_clip_state clip; struct pipe_point_state point; struct pipe_scissor_rect scissor; struct pipe_poly_stipple poly_stipple; GLuint dirty; /* 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 softpipe_context * softpipe_context( struct pipe_context *pipe ) { return (struct softpipe_context *)pipe; } #endif