1 /**************************************************************************
3 * Copyright 2007-2009 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * The setup code is concerned with point/line/triangle setup and
31 * putting commands/data into the bins.
35 #ifndef LP_SETUP_CONTEXT_H
36 #define LP_SETUP_CONTEXT_H
40 #include "lp_tile_soa.h" /* for TILE_SIZE */
43 #include "draw/draw_vbuf.h"
45 #define LP_SETUP_NEW_FS 0x01
46 #define LP_SETUP_NEW_CONSTANTS 0x02
47 #define LP_SETUP_NEW_BLEND_COLOR 0x04
48 #define LP_SETUP_NEW_SCISSOR 0x08
51 struct lp_scene_queue;
54 /** Max number of scenes */
60 * Point/line/triangle setup context.
61 * Note: "stored" below indicates data which is stored in the bins,
62 * not arbitrary malloc'd memory.
65 * Subclass of vbuf_render, plugged directly into the draw module as
66 * the rendering backend.
68 struct lp_setup_context
70 struct vbuf_render base;
72 struct vertex_info *vertex_info;
76 uint vertex_buffer_size;
79 /* Final pipeline stage for draw module. Draw module should
80 * create/install this itself now.
82 struct draw_stage *vbuf;
83 struct lp_rasterizer *rast;
84 struct lp_scene *scenes[MAX_SCENES]; /**< all the scenes */
85 struct lp_scene *scene; /**< current scene being built */
86 struct lp_scene_queue *empty_scenes; /**< queue of empty scenes */
88 boolean flatshade_first;
89 boolean ccw_is_frontface;
94 struct pipe_framebuffer_state fb;
98 union lp_rast_cmd_arg color; /**< lp_rast_clear_color() cmd */
99 union lp_rast_cmd_arg zstencil; /**< lp_rast_clear_zstencil() cmd */
109 struct lp_shader_input input[PIPE_MAX_ATTRIBS];
112 const struct lp_rast_state *stored; /**< what's in the scene */
113 struct lp_rast_state current; /**< currently set state */
114 struct pipe_resource *current_tex[PIPE_MAX_SAMPLERS];
117 /** fragment shader constants */
119 struct pipe_resource *current;
120 unsigned stored_size;
121 const void *stored_data;
125 struct pipe_blend_color current;
130 struct pipe_scissor_state current;
134 unsigned dirty; /**< bitmask of LP_SETUP_NEW_x bits */
136 void (*point)( struct lp_setup_context *,
137 const float (*v0)[4]);
139 void (*line)( struct lp_setup_context *,
140 const float (*v0)[4],
141 const float (*v1)[4]);
143 void (*triangle)( struct lp_setup_context *,
144 const float (*v0)[4],
145 const float (*v1)[4],
146 const float (*v2)[4]);
149 void lp_setup_choose_triangle( struct lp_setup_context *setup );
150 void lp_setup_choose_line( struct lp_setup_context *setup );
151 void lp_setup_choose_point( struct lp_setup_context *setup );
153 struct lp_scene *lp_setup_get_current_scene(struct lp_setup_context *setup);
155 void lp_setup_init_vbuf(struct lp_setup_context *setup);
157 void lp_setup_update_state( struct lp_setup_context *setup );
159 void lp_setup_destroy( struct lp_setup_context *setup );