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
85 unsigned num_samplers[PIPE_SHADER_TYPES];
86 unsigned num_sampler_views[PIPE_SHADER_TYPES];
87
88 unsigned num_vertex_buffers;
89
90 struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
91 int num_so_targets;
92 struct pipe_query_data_so_statistics so_stats;
93
94 struct pipe_query_data_pipeline_statistics pipeline_statistics;
95 unsigned active_statistics_queries;
96
97 unsigned active_occlusion_queries;
98
99 unsigned dirty; /**< Mask of LP_NEW_x flags */
100
101 /** Mapped vertex buffers */
102 ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
103
104 /** Vertex format */
105 struct vertex_info vertex_info;
106
107 /** Which vertex shader output slot contains color */
108 int8_t color_slot[2];
109
110 /** Which vertex shader output slot contains bcolor */
111 int8_t bcolor_slot[2];
112
113 /** Which vertex shader output slot contains point size */
114 int8_t psize_slot;
115
116 /** Which vertex shader output slot contains viewport index */
117 int8_t viewport_index_slot;
118
119 /** Which geometry shader output slot contains layer */
120 int8_t layer_slot;
121
122 /** A fake frontface output for unfilled primitives */
123 int8_t face_slot;
124
125 /** Depth format and bias settings. */
126 boolean floating_point_depth;
127 double mrd; /**< minimum resolvable depth value, for polygon offset */
128
129 /** The tiling engine */
130 struct lp_setup_context *setup;
131 struct lp_setup_variant setup_variant;
132
133 /** The primitive drawing context */
134 struct draw_context *draw;
135
136 struct blitter_context *blitter;
137
138 unsigned tex_timestamp;
139 boolean no_rast;
140
141 /** List of all fragment shader variants */
142 struct lp_fs_variant_list_item fs_variants_list;
143 unsigned nr_fs_variants;
144 unsigned nr_fs_instrs;
145
146 struct lp_setup_variant_list_item setup_variants_list;
147 unsigned nr_setup_variants;
148
149 /** Conditional query object and mode */
150 struct pipe_query *render_cond_query;
151 enum pipe_render_cond_flag render_cond_mode;
152 boolean render_cond_cond;
153
154 /** The LLVMContext to use for LLVM related work */
155 LLVMContextRef context;
156 };
157
158
159 struct pipe_context *
160 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
161 unsigned flags);
162
163 struct pipe_resource *
164 llvmpipe_user_buffer_create(struct pipe_screen *screen,
165 void *ptr,
166 unsigned bytes,
167 unsigned bind_flags);
168
169
170 static inline struct llvmpipe_context *
llvmpipe_context(struct pipe_context * pipe)171 llvmpipe_context( struct pipe_context *pipe )
172 {
173 return (struct llvmpipe_context *)pipe;
174 }
175
176 #endif /* LP_CONTEXT_H */
177
178