lp_context.h revision cab2fed135bc1edf7b65ddca3236020638427061 
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
45struct llvmpipe_vbuf_render;
46struct draw_context;
47struct draw_stage;
48struct lp_fragment_shader;
49struct lp_vertex_shader;
50struct lp_blend_state;
51struct lp_setup_context;
52struct lp_setup_variant;
53struct lp_velems_state;
54
55struct 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 */
147extern unsigned llvmpipe_variant_count;
148
149
150struct pipe_context *
151llvmpipe_create_context( struct pipe_screen *screen, void *priv );
152
153struct pipe_resource *
154llvmpipe_user_buffer_create(struct pipe_screen *screen,
155                            void *ptr,
156                            unsigned bytes,
157			    unsigned bind_flags);
158
159
160static INLINE struct llvmpipe_context *
161llvmpipe_context( struct pipe_context *pipe )
162{
163   return (struct llvmpipe_context *)pipe;
164}
165
166#endif /* LP_CONTEXT_H */
167
168