Merge branch 'mesa_7_6_branch'
[mesa.git] / src / gallium / drivers / softpipe / sp_context.h
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 SP_CONTEXT_H
32 #define SP_CONTEXT_H
33
34 #include "pipe/p_context.h"
35
36 #include "draw/draw_vertex.h"
37
38 #include "sp_quad_pipe.h"
39
40
41 struct softpipe_vbuf_render;
42 struct draw_context;
43 struct draw_stage;
44 struct softpipe_tile_cache;
45 struct softpipe_tex_tile_cache;
46 struct sp_fragment_shader;
47 struct sp_vertex_shader;
48
49
50 struct softpipe_context {
51 struct pipe_context pipe; /**< base class */
52
53 /** Constant state objects */
54 struct pipe_blend_state *blend;
55 struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
56 struct pipe_depth_stencil_alpha_state *depth_stencil;
57 struct pipe_rasterizer_state *rasterizer;
58 struct sp_fragment_shader *fs;
59 struct sp_vertex_shader *vs;
60
61 /** Other rendering state */
62 struct pipe_blend_color blend_color;
63 struct pipe_clip_state clip;
64 struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
65 struct pipe_framebuffer_state framebuffer;
66 struct pipe_poly_stipple poly_stipple;
67 struct pipe_scissor_state scissor;
68 struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
69 struct pipe_viewport_state viewport;
70 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
71 struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
72
73 unsigned num_samplers;
74 unsigned num_textures;
75 unsigned num_vertex_elements;
76 unsigned num_vertex_buffers;
77
78 unsigned dirty; /**< Mask of SP_NEW_x flags */
79
80 /* Counter for occlusion queries. Note this supports overlapping
81 * queries.
82 */
83 uint64_t occlusion_count;
84 unsigned active_query_count;
85
86 /** Mapped vertex buffers */
87 ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
88
89 /** Mapped constant buffers */
90 void *mapped_constants[PIPE_SHADER_TYPES];
91
92 /** Vertex format */
93 struct vertex_info vertex_info;
94 struct vertex_info vertex_info_vbuf;
95
96 /** Which vertex shader output slot contains point size */
97 int psize_slot;
98
99 /** The reduced version of the primitive supplied by the state tracker */
100 unsigned reduced_api_prim;
101
102 /**
103 * The reduced primitive after unfilled triangles, wide-line decomposition,
104 * etc, are taken into account. This is the primitive type that's actually
105 * rasterized.
106 */
107 unsigned reduced_prim;
108
109 /** Derived from scissor and surface bounds: */
110 struct pipe_scissor_state cliprect;
111
112 unsigned line_stipple_counter;
113
114 /** Software quad rendering pipeline */
115 struct {
116 struct quad_stage *shade;
117 struct quad_stage *depth_test;
118 struct quad_stage *blend;
119 struct quad_stage *first; /**< points to one of the above stages */
120 } quad;
121
122 /** TGSI exec things */
123 struct {
124 struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_SAMPLERS];
125 struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
126 } tgsi;
127
128 /** The primitive drawing context */
129 struct draw_context *draw;
130
131 /** Draw module backend */
132 struct vbuf_render *vbuf_backend;
133 struct draw_stage *vbuf;
134
135 boolean dirty_render_cache;
136
137 struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
138 struct softpipe_tile_cache *zsbuf_cache;
139
140 unsigned tex_timestamp;
141 struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
142
143 unsigned use_sse : 1;
144 unsigned dump_fs : 1;
145 unsigned no_rast : 1;
146 };
147
148
149 static INLINE struct softpipe_context *
150 softpipe_context( struct pipe_context *pipe )
151 {
152 return (struct softpipe_context *)pipe;
153 }
154
155 void
156 softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
157
158
159 #endif /* SP_CONTEXT_H */