1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 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.
25 *
26 **************************************************************************/
27
28 /* Authors: Keith Whitwell <keithw@vmware.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 #include "util/u_blitter.h"
38
39 #include "lp_tex_sample.h"
40 #include "lp_jit.h"
41 #include "lp_setup.h"
42 #include "lp_state_fs.h"
43 #include "lp_state_setup.h"
44
45
46 struct llvmpipe_vbuf_render;
47 struct draw_context;
48 struct draw_stage;
49 struct draw_vertex_shader;
50 struct lp_fragment_shader;
51 struct lp_blend_state;
52 struct lp_setup_context;
53 struct lp_setup_variant;
54 struct lp_velems_state;
55
56 struct llvmpipe_context {
57 struct pipe_context pipe; /**< base class */
58
59 /** Constant state objects */
60 const struct pipe_blend_state *blend;
61 struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
62
63 const struct pipe_depth_stencil_alpha_state *depth_stencil;
64 const struct pipe_rasterizer_state *rasterizer;
65 struct lp_fragment_shader *fs;
66 struct draw_vertex_shader *vs;
67 const struct lp_geometry_shader *gs;
68 const struct lp_velems_state *velems;
69 const struct lp_so_state *so;
70
71 /** Other rendering state */
72 unsigned sample_mask;
73 struct pipe_blend_color blend_color;
74 struct pipe_stencil_ref stencil_ref;
75 struct pipe_clip_state clip;
76 struct pipe_constant_buffer constants[PIPE_SHADER_TYPES][LP_MAX_TGSI_CONST_BUFFERS];
77 struct pipe_framebuffer_state framebuffer;
78 struct pipe_poly_stipple poly_stipple;
79 struct pipe_scissor_state scissors[PIPE_MAX_VIEWPORTS];
80 struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
81
82 struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
83 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
84 struct pipe_index_buffer index_buffer;
85
86 unsigned num_samplers[PIPE_SHADER_TYPES];
87 unsigned num_sampler_views[PIPE_SHADER_TYPES];
88
89 unsigned num_vertex_buffers;
90
91 struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
92 int num_so_targets;
93 struct pipe_query_data_so_statistics so_stats;
94
95 struct pipe_query_data_pipeline_statistics pipeline_statistics;
96 unsigned active_statistics_queries;
97
98 unsigned active_occlusion_queries;
99
100 unsigned dirty; /**< Mask of LP_NEW_x flags */
101
102 /** Mapped vertex buffers */
103 ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
104
105 /** Vertex format */
106 struct vertex_info vertex_info;
107
108 /** Which vertex shader output slot contains color */
109 int8_t color_slot[2];
110
111 /** Which vertex shader output slot contains bcolor */
112 int8_t bcolor_slot[2];
113
114 /** Which vertex shader output slot contains point size */
115 int8_t psize_slot;
116
117 /** Which vertex shader output slot contains viewport index */
118 int8_t viewport_index_slot;
119
120 /** Which geometry shader output slot contains layer */
121 int8_t layer_slot;
122
123 /** A fake frontface output for unfilled primitives */
124 int8_t face_slot;
125
126 /** Depth format and bias settings. */
127 boolean floating_point_depth;
128 double mrd; /**< minimum resolvable depth value, for polygon offset */
129
130 /** The tiling engine */
131 struct lp_setup_context *setup;
132 struct lp_setup_variant setup_variant;
133
134 /** The primitive drawing context */
135 struct draw_context *draw;
136
137 struct blitter_context *blitter;
138
139 unsigned tex_timestamp;
140 boolean no_rast;
141
142 /** List of all fragment shader variants */
143 struct lp_fs_variant_list_item fs_variants_list;
144 unsigned nr_fs_variants;
145 unsigned nr_fs_instrs;
146
147 struct lp_setup_variant_list_item setup_variants_list;
148 unsigned nr_setup_variants;
149
150 /** Conditional query object and mode */
151 struct pipe_query *render_cond_query;
152 uint render_cond_mode;
153 boolean render_cond_cond;
154
155 /** The LLVMContext to use for LLVM related work */
156 LLVMContextRef context;
157 };
158
159
160 struct pipe_context *
161 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
162 unsigned flags);
163
164 struct pipe_resource *
165 llvmpipe_user_buffer_create(struct pipe_screen *screen,
166 void *ptr,
167 unsigned bytes,
168 unsigned bind_flags);
169
170
171 static inline struct llvmpipe_context *
llvmpipe_context(struct pipe_context * pipe)172 llvmpipe_context( struct pipe_context *pipe )
173 {
174 return (struct llvmpipe_context *)pipe;
175 }
176
177 #endif /* LP_CONTEXT_H */
178
179