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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