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
41 #include "lp_bld_interp.h" /* for struct lp_shader_input */
43 #include "draw/draw_vbuf.h"
44 #include "util/u_rect.h"
46 #define LP_SETUP_NEW_FS 0x01
47 #define LP_SETUP_NEW_CONSTANTS 0x02
48 #define LP_SETUP_NEW_BLEND_COLOR 0x04
49 #define LP_SETUP_NEW_SCISSOR 0x08
52 struct lp_setup_variant;
55 /** Max number of scenes */
61 * Point/line/triangle setup context.
62 * Note: "stored" below indicates data which is stored in the bins,
63 * not arbitrary malloc'd memory.
66 * Subclass of vbuf_render, plugged directly into the draw module as
67 * the rendering backend.
69 struct lp_setup_context
71 struct vbuf_render base;
73 struct pipe_context *pipe;
74 struct vertex_info *vertex_info;
78 uint sprite_coord_enable, sprite_coord_origin;
79 uint vertex_buffer_size;
82 /* Final pipeline stage for draw module. Draw module should
83 * create/install this itself now.
85 struct draw_stage *vbuf;
88 struct lp_scene *scenes[MAX_SCENES]; /**< all the scenes */
89 struct lp_scene *scene; /**< current scene being built */
91 struct lp_fence *last_fence;
92 struct llvmpipe_query *active_query[PIPE_QUERY_TYPES];
94 boolean subdivide_large_triangles;
95 boolean flatshade_first;
96 boolean ccw_is_frontface;
98 boolean point_size_per_vertex;
99 boolean rasterizer_discard;
101 unsigned bottom_edge_rule;
106 unsigned viewport_index_slot;
108 struct pipe_framebuffer_state fb;
109 struct u_rect framebuffer;
110 struct u_rect scissors[PIPE_MAX_VIEWPORTS];
111 struct u_rect draw_regions[PIPE_MAX_VIEWPORTS]; /* intersection of fb & scissor */
115 union lp_rast_cmd_arg color; /**< lp_rast_clear_color() cmd */
117 uint64_t zsvalue; /**< lp_rast_clear_zstencil() cmd */
121 SETUP_FLUSHED, /**< scene is null */
122 SETUP_CLEARED, /**< scene exists but has only clears */
123 SETUP_ACTIVE /**< scene exists and has at least one draw/query */
127 const struct lp_rast_state *stored; /**< what's in the scene */
128 struct lp_rast_state current; /**< currently set state */
129 struct pipe_resource *current_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
132 /** fragment shader constants */
134 struct pipe_constant_buffer current;
135 unsigned stored_size;
136 const void *stored_data;
137 } constants[LP_MAX_TGSI_CONST_BUFFERS];
140 struct pipe_blend_color current;
146 const struct lp_setup_variant *variant;
149 unsigned dirty; /**< bitmask of LP_SETUP_NEW_x bits */
151 void (*point)( struct lp_setup_context *,
152 const float (*v0)[4]);
154 void (*line)( struct lp_setup_context *,
155 const float (*v0)[4],
156 const float (*v1)[4]);
158 void (*triangle)( struct lp_setup_context *,
159 const float (*v0)[4],
160 const float (*v1)[4],
161 const float (*v2)[4]);
164 void lp_setup_choose_triangle( struct lp_setup_context *setup );
165 void lp_setup_choose_line( struct lp_setup_context *setup );
166 void lp_setup_choose_point( struct lp_setup_context *setup );
168 void lp_setup_init_vbuf(struct lp_setup_context *setup);
170 boolean lp_setup_update_state( struct lp_setup_context *setup,
171 boolean update_scene);
173 void lp_setup_destroy( struct lp_setup_context *setup );
175 boolean lp_setup_flush_and_restart(struct lp_setup_context *setup);
178 lp_setup_print_triangle(struct lp_setup_context *setup,
179 const float (*v0)[4],
180 const float (*v1)[4],
181 const float (*v2)[4]);
184 lp_setup_print_vertex(struct lp_setup_context *setup,
186 const float (*v)[4]);
189 struct lp_rast_triangle *
190 lp_setup_alloc_triangle(struct lp_scene *scene,
196 lp_setup_bin_triangle( struct lp_setup_context *setup,
197 struct lp_rast_triangle *tri,
198 const struct u_rect *bbox,
200 unsigned scissor_index );