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 /** Do polygon stipple in the draw module? */
42 #define DO_PSTIPPLE_IN_DRAW_MODULE 0
43
44 /** Do polygon stipple with the util module? */
45 #define DO_PSTIPPLE_IN_HELPER_MODULE 1
46
47
48 struct softpipe_vbuf_render;
49 struct draw_context;
50 struct draw_stage;
51 struct softpipe_tile_cache;
52 struct softpipe_tex_tile_cache;
53 struct sp_fragment_shader;
54 struct sp_vertex_shader;
55 struct sp_velems_state;
56 struct sp_so_state;
57
58 struct softpipe_context {
59 struct pipe_context pipe; /**< base class */
60
61 /** Constant state objects */
62 struct pipe_blend_state *blend;
63 struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
64 struct pipe_depth_stencil_alpha_state *depth_stencil;
65 struct pipe_rasterizer_state *rasterizer;
66 struct sp_fragment_shader *fs;
67 struct sp_fragment_shader_variant *fs_variant;
68 struct sp_vertex_shader *vs;
69 struct sp_geometry_shader *gs;
70 struct sp_velems_state *velems;
71 struct sp_so_state *so;
72
73 /** Other rendering state */
74 struct pipe_blend_color blend_color;
75 struct pipe_blend_color blend_color_clamped;
76 struct pipe_stencil_ref stencil_ref;
77 struct pipe_clip_state clip;
78 struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
79 struct pipe_framebuffer_state framebuffer;
80 struct pipe_poly_stipple poly_stipple;
81 struct pipe_scissor_state scissor;
82 struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
83
84 struct pipe_viewport_state viewport;
85 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
86 struct pipe_index_buffer index_buffer;
87
88 struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
89 int num_so_targets;
90
91 struct pipe_query_data_so_statistics so_stats;
92 unsigned num_primitives_generated;
93
94 unsigned num_samplers[PIPE_SHADER_TYPES];
95 unsigned num_sampler_views[PIPE_SHADER_TYPES];
96
97 unsigned num_vertex_buffers;
98
99 unsigned dirty; /**< Mask of SP_NEW_x flags */
100
101 /* Counter for occlusion queries. Note this supports overlapping
102 * queries.
103 */
104 uint64_t occlusion_count;
105 unsigned active_query_count;
106
107 /** Mapped vertex buffers */
108 ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
109
110 /** Mapped constant buffers */
111 const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
112 unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
113
114 /** Vertex format */
115 struct vertex_info vertex_info;
116 struct vertex_info vertex_info_vbuf;
117
118 /** Which vertex shader output slot contains point size */
119 int psize_slot;
120
121 /** The reduced version of the primitive supplied by the state tracker */
122 unsigned reduced_api_prim;
123
124 /** Derived information about which winding orders to cull */
125 unsigned cull_mode;
126
127 /**
128 * The reduced primitive after unfilled triangles, wide-line decomposition,
129 * etc, are taken into account. This is the primitive type that's actually
130 * rasterized.
131 */
132 unsigned reduced_prim;
133
134 /** Derived from scissor and surface bounds: */
135 struct pipe_scissor_state cliprect;
136
137 unsigned line_stipple_counter;
138
139 /** Conditional query object and mode */
140 struct pipe_query *render_cond_query;
141 uint render_cond_mode;
142
143 /** Polygon stipple items */
144 struct {
145 struct pipe_resource *texture;
146 struct pipe_sampler_state *sampler;
147 struct pipe_sampler_view *sampler_view;
148 } pstipple;
149
150 /** Software quad rendering pipeline */
151 struct {
152 struct quad_stage *shade;
153 struct quad_stage *depth_test;
154 struct quad_stage *blend;
155 struct quad_stage *pstipple;
156 struct quad_stage *first; /**< points to one of the above stages */
157 } quad;
158
159 /** TGSI exec things */
160 struct {
161 struct sp_sampler_variant *samplers_list[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
162 } tgsi;
163
164 struct tgsi_exec_machine *fs_machine;
165
166 /** The primitive drawing context */
167 struct draw_context *draw;
168
169 /** Draw module backend */
170 struct vbuf_render *vbuf_backend;
171 struct draw_stage *vbuf;
172
173 boolean dirty_render_cache;
174
175 struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
176 struct softpipe_tile_cache *zsbuf_cache;
177
178 unsigned tex_timestamp;
179
180 /*
181 * Texture caches for vertex, fragment, geometry stages.
182 * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
183 * for compute shaders.
184 */
185 struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SAMPLERS];
186
187 unsigned dump_fs : 1;
188 unsigned dump_gs : 1;
189 unsigned no_rast : 1;
190 };
191
192
193 static INLINE struct softpipe_context *
softpipe_context(struct pipe_context * pipe)194 softpipe_context( struct pipe_context *pipe )
195 {
196 return (struct softpipe_context *)pipe;
197 }
198
199 void
200 softpipe_reset_sampler_variants(struct softpipe_context *softpipe);
201
202 struct pipe_context *
203 softpipe_create_context( struct pipe_screen *, void *priv );
204
205 struct pipe_resource *
206 softpipe_user_buffer_create(struct pipe_screen *screen,
207 void *ptr,
208 unsigned bytes,
209 unsigned bind_flags);
210
211 #define SP_UNREFERENCED 0
212 #define SP_REFERENCED_FOR_READ (1 << 0)
213 #define SP_REFERENCED_FOR_WRITE (1 << 1)
214
215 unsigned int
216 softpipe_is_resource_referenced( struct pipe_context *pipe,
217 struct pipe_resource *texture,
218 unsigned level, int layer);
219
220 #endif /* SP_CONTEXT_H */
221