1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 TUNGSTEN GRAPHICS 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.
25 *
26 **************************************************************************/
27
28 /* Authors: Keith Whitwell <keith@tungstengraphics.com>
29 */
30
31 #ifndef LP_CONTEXT_H
32 #define LP_CONTEXT_H
33
34 #include "pipe/p_context.h"
35
36 #include "draw/draw_vertex.h"
37
38 #include "lp_tex_sample.h"
39 #include "lp_jit.h"
40 #include "lp_setup.h"
41 #include "lp_state_fs.h"
42 #include "lp_state_setup.h"
43
44
45 struct llvmpipe_vbuf_render;
46 struct draw_context;
47 struct draw_stage;
48 struct lp_fragment_shader;
49 struct lp_vertex_shader;
50 struct lp_blend_state;
51 struct lp_setup_context;
52 struct lp_setup_variant;
53 struct lp_velems_state;
54
55 struct llvmpipe_context {
56 struct pipe_context pipe; /**< base class */
57
58 /** Constant state objects */
59 const struct pipe_blend_state *blend;
60 struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
61
62 const struct pipe_depth_stencil_alpha_state *depth_stencil;
63 const struct pipe_rasterizer_state *rasterizer;
64 struct lp_fragment_shader *fs;
65 const struct lp_vertex_shader *vs;
66 const struct lp_geometry_shader *gs;
67 const struct lp_velems_state *velems;
68 const struct lp_so_state *so;
69
70 /** Other rendering state */
71 struct pipe_blend_color blend_color;
72 struct pipe_stencil_ref stencil_ref;
73 struct pipe_clip_state clip;
74 struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
75 struct pipe_framebuffer_state framebuffer;
76 struct pipe_poly_stipple poly_stipple;
77 struct pipe_scissor_state scissor;
78 struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
79
80 struct pipe_viewport_state viewport;
81 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
82 struct pipe_index_buffer index_buffer;
83 struct {
84 struct llvmpipe_resource *buffer[PIPE_MAX_SO_BUFFERS];
85 int offset[PIPE_MAX_SO_BUFFERS];
86 int so_count[PIPE_MAX_SO_BUFFERS];
87 int num_buffers;
88 } so_target;
89 struct pipe_resource *mapped_vs_tex[PIPE_MAX_SAMPLERS];
90
91 unsigned num_samplers[PIPE_SHADER_TYPES];
92 unsigned num_sampler_views[PIPE_SHADER_TYPES];
93
94 unsigned num_vertex_buffers;
95
96 unsigned dirty; /**< Mask of LP_NEW_x flags */
97
98 int active_query_count;
99
100 /** Mapped vertex buffers */
101 ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
102
103 /** Vertex format */
104 struct vertex_info vertex_info;
105
106 /** Which vertex shader output slot contains color */
107 int color_slot[2];
108
109 /** Which vertex shader output slot contains bcolor */
110 int bcolor_slot[2];
111
112 /** Which vertex shader output slot contains point size */
113 int psize_slot;
114
115 /**< minimum resolvable depth value, for polygon offset */
116 double mrd;
117
118 /** The tiling engine */
119 struct lp_setup_context *setup;
120 struct lp_setup_variant setup_variant;
121
122 /** The primitive drawing context */
123 struct draw_context *draw;
124
125 unsigned tex_timestamp;
126 boolean no_rast;
127
128 /** List of all fragment shader variants */
129 struct lp_fs_variant_list_item fs_variants_list;
130 unsigned nr_fs_variants;
131 unsigned nr_fs_instrs;
132
133 struct lp_setup_variant_list_item setup_variants_list;
134 unsigned nr_setup_variants;
135
136 /** Conditional query object and mode */
137 struct pipe_query *render_cond_query;
138 uint render_cond_mode;
139 };
140
141
142 /**
143 * Fragment and setup variant count, used to trigger garbage collection.
144 * This is global since all variants in all contexts will be free when
145 * we do garbage collection.
146 */
147 extern unsigned llvmpipe_variant_count;
148
149
150 struct pipe_context *
151 llvmpipe_create_context( struct pipe_screen *screen, void *priv );
152
153 struct pipe_resource *
154 llvmpipe_user_buffer_create(struct pipe_screen *screen,
155 void *ptr,
156 unsigned bytes,
157 unsigned bind_flags);
158
159
160 static INLINE struct llvmpipe_context *
llvmpipe_context(struct pipe_context * pipe)161 llvmpipe_context( struct pipe_context *pipe )
162 {
163 return (struct llvmpipe_context *)pipe;
164 }
165
166 #endif /* LP_CONTEXT_H */
167
168