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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 SP_STATE_H
32 #define SP_STATE_H
33 
34 #include "pipe/p_state.h"
35 #include "tgsi/tgsi_scan.h"
36 
37 
38 #define SP_NEW_VIEWPORT      0x1
39 #define SP_NEW_RASTERIZER    0x2
40 #define SP_NEW_FS            0x4
41 #define SP_NEW_BLEND         0x8
42 #define SP_NEW_CLIP          0x10
43 #define SP_NEW_SCISSOR       0x20
44 
45 #define SP_NEW_FRAMEBUFFER   0x80
46 #define SP_NEW_DEPTH_STENCIL_ALPHA 0x100
47 #define SP_NEW_CONSTANTS     0x200
48 #define SP_NEW_SAMPLER       0x400
49 #define SP_NEW_TEXTURE       0x800
50 #define SP_NEW_VERTEX        0x1000
51 #define SP_NEW_VS            0x2000
52 #define SP_NEW_QUERY         0x4000
53 #define SP_NEW_GS            0x8000
54 #define SP_NEW_SO            0x10000
55 #define SP_NEW_SO_BUFFERS    0x20000
56 
57 
58 struct tgsi_sampler;
59 struct tgsi_image;
60 struct tgsi_buffer;
61 struct tgsi_exec_machine;
62 struct vertex_info;
63 
64 
65 struct sp_fragment_shader_variant_key
66 {
67    /* Standard C doesn't allow 0-size structs */
68    int dummy;
69 };
70 
71 
72 struct sp_fragment_shader_variant
73 {
74    const struct tgsi_token *tokens;
75    struct sp_fragment_shader_variant_key key;
76    struct tgsi_shader_info info;
77 
78    /* See comments about this elsewhere */
79 #if 0
80    struct draw_fragment_shader *draw_shader;
81 #endif
82 
83    void (*prepare)(const struct sp_fragment_shader_variant *shader,
84 		   struct tgsi_exec_machine *machine,
85 		   struct tgsi_sampler *sampler,
86 		   struct tgsi_image *image,
87 		   struct tgsi_buffer *buffer);
88 
89    unsigned (*run)(const struct sp_fragment_shader_variant *shader,
90 		   struct tgsi_exec_machine *machine,
91 		   struct quad_header *quad,
92 		   bool early_depth_test);
93 
94    /* Deletes this instance of the object */
95    void (*delete)(struct sp_fragment_shader_variant *shader,
96                   struct tgsi_exec_machine *machine);
97 
98    struct sp_fragment_shader_variant *next;
99 };
100 
101 
102 /** Subclass of pipe_shader_state */
103 struct sp_fragment_shader {
104    struct pipe_shader_state shader;
105    struct sp_fragment_shader_variant *variants;
106    struct draw_fragment_shader *draw_shader;
107 };
108 
109 
110 /** Subclass of pipe_shader_state */
111 struct sp_vertex_shader {
112    struct pipe_shader_state shader;
113    struct draw_vertex_shader *draw_data;
114    int max_sampler;             /* -1 if no samplers */
115 };
116 
117 /** Subclass of pipe_shader_state */
118 struct sp_geometry_shader {
119    struct pipe_shader_state shader;
120    struct draw_geometry_shader *draw_data;
121    int max_sampler;
122 };
123 
124 struct sp_velems_state {
125    unsigned count;
126    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
127 };
128 
129 struct sp_so_state {
130    struct pipe_stream_output_info base;
131 };
132 
133 /** Subclass of pipe_compute_state */
134 struct sp_compute_shader {
135    struct pipe_compute_state shader;
136    struct tgsi_token *tokens;
137    struct tgsi_shader_info info;
138    int max_sampler;             /* -1 if no samplers */
139 };
140 
141 void
142 softpipe_init_blend_funcs(struct pipe_context *pipe);
143 
144 void
145 softpipe_init_clip_funcs(struct pipe_context *pipe);
146 
147 void
148 softpipe_init_sampler_funcs(struct pipe_context *pipe);
149 
150 void
151 softpipe_init_rasterizer_funcs(struct pipe_context *pipe);
152 
153 void
154 softpipe_init_shader_funcs(struct pipe_context *pipe);
155 
156 void
157 softpipe_init_streamout_funcs(struct pipe_context *pipe);
158 
159 void
160 softpipe_init_vertex_funcs(struct pipe_context *pipe);
161 
162 void
163 softpipe_init_image_funcs(struct pipe_context *pipe);
164 
165 void
166 softpipe_set_framebuffer_state(struct pipe_context *,
167                                const struct pipe_framebuffer_state *);
168 
169 void
170 softpipe_update_derived(struct softpipe_context *softpipe, unsigned prim);
171 
172 void
173 softpipe_set_sampler_views(struct pipe_context *pipe,
174                            enum pipe_shader_type shader,
175                            unsigned start,
176                            unsigned num,
177                            unsigned unbind_num_trailing_slots,
178                            bool take_ownership,
179                            struct pipe_sampler_view **views);
180 
181 
182 void
183 softpipe_draw_vbo(struct pipe_context *pipe,
184                   const struct pipe_draw_info *info,
185                   unsigned drawid_offset,
186                   const struct pipe_draw_indirect_info *indirect,
187                   const struct pipe_draw_start_count_bias *draws,
188                   unsigned num_draws);
189 
190 void
191 softpipe_map_texture_surfaces(struct softpipe_context *sp);
192 
193 void
194 softpipe_unmap_texture_surfaces(struct softpipe_context *sp);
195 
196 
197 struct vertex_info *
198 softpipe_get_vbuf_vertex_info(struct softpipe_context *softpipe);
199 
200 
201 struct sp_fragment_shader_variant *
202 softpipe_find_fs_variant(struct softpipe_context *softpipe,
203                          struct sp_fragment_shader *fs,
204                          const struct sp_fragment_shader_variant_key *key);
205 
206 void
207 softpipe_prepare_vertex_sampling(struct softpipe_context *ctx,
208                                  unsigned num,
209                                  struct pipe_sampler_view **views);
210 void
211 softpipe_cleanup_vertex_sampling(struct softpipe_context *ctx);
212 
213 
214 void
215 softpipe_prepare_geometry_sampling(struct softpipe_context *ctx,
216                                    unsigned num,
217                                    struct pipe_sampler_view **views);
218 void
219 softpipe_cleanup_geometry_sampling(struct softpipe_context *ctx);
220 
221 
222 void
223 softpipe_launch_grid(struct pipe_context *context,
224                      const struct pipe_grid_info *info);
225 
226 void
227 softpipe_update_compute_samplers(struct softpipe_context *softpipe);
228 #endif
229