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1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 2012-2013 LunarG, Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *    Chia-I Wu <olv@lunarg.com>
26  */
27 
28 #ifndef ILO_STATE_H
29 #define ILO_STATE_H
30 
31 #include "core/ilo_builder_3d.h" /* for gen6_3dprimitive_info */
32 #include "core/ilo_state_cc.h"
33 #include "core/ilo_state_compute.h"
34 #include "core/ilo_state_raster.h"
35 #include "core/ilo_state_sampler.h"
36 #include "core/ilo_state_sbe.h"
37 #include "core/ilo_state_shader.h"
38 #include "core/ilo_state_sol.h"
39 #include "core/ilo_state_surface.h"
40 #include "core/ilo_state_urb.h"
41 #include "core/ilo_state_vf.h"
42 #include "core/ilo_state_viewport.h"
43 #include "core/ilo_state_zs.h"
44 #include "pipe/p_state.h"
45 #include "util/u_dynarray.h"
46 
47 #include "ilo_common.h"
48 
49 /**
50  * \see brw_context.h
51  */
52 #define ILO_MAX_DRAW_BUFFERS    8
53 #define ILO_MAX_CONST_BUFFERS   (1 + 12)
54 #define ILO_MAX_SAMPLER_VIEWS   16
55 #define ILO_MAX_SAMPLERS        16
56 #define ILO_MAX_SO_BINDINGS     64
57 #define ILO_MAX_SO_BUFFERS      4
58 #define ILO_MAX_VIEWPORTS       1
59 
60 #define ILO_MAX_SURFACES        256
61 
62 /**
63  * States that we track.
64  *
65  * XXX Do we want to count each sampler or vertex buffer as a state?  If that
66  * is the case, there are simply not enough bits.
67  *
68  * XXX We want to treat primitive type and depth clear value as states, but
69  * there are not enough bits.
70  */
71 enum ilo_state {
72    ILO_STATE_VB,
73    ILO_STATE_VE,
74    ILO_STATE_IB,
75    ILO_STATE_VS,
76    ILO_STATE_GS,
77    ILO_STATE_SO,
78    ILO_STATE_CLIP,
79    ILO_STATE_VIEWPORT,
80    ILO_STATE_SCISSOR,
81    ILO_STATE_RASTERIZER,
82    ILO_STATE_POLY_STIPPLE,
83    ILO_STATE_SAMPLE_MASK,
84    ILO_STATE_FS,
85    ILO_STATE_DSA,
86    ILO_STATE_STENCIL_REF,
87    ILO_STATE_BLEND,
88    ILO_STATE_BLEND_COLOR,
89    ILO_STATE_FB,
90 
91    ILO_STATE_SAMPLER_VS,
92    ILO_STATE_SAMPLER_GS,
93    ILO_STATE_SAMPLER_FS,
94    ILO_STATE_SAMPLER_CS,
95    ILO_STATE_VIEW_VS,
96    ILO_STATE_VIEW_GS,
97    ILO_STATE_VIEW_FS,
98    ILO_STATE_VIEW_CS,
99    ILO_STATE_CBUF,
100    ILO_STATE_RESOURCE,
101 
102    ILO_STATE_CS,
103    ILO_STATE_CS_RESOURCE,
104    ILO_STATE_GLOBAL_BINDING,
105 
106    ILO_STATE_COUNT,
107 };
108 
109 /**
110  * Dirty flags of the states.
111  */
112 enum ilo_dirty_flags {
113    ILO_DIRTY_VB               = 1 << ILO_STATE_VB,
114    ILO_DIRTY_VE               = 1 << ILO_STATE_VE,
115    ILO_DIRTY_IB               = 1 << ILO_STATE_IB,
116    ILO_DIRTY_VS               = 1 << ILO_STATE_VS,
117    ILO_DIRTY_GS               = 1 << ILO_STATE_GS,
118    ILO_DIRTY_SO               = 1 << ILO_STATE_SO,
119    ILO_DIRTY_CLIP             = 1 << ILO_STATE_CLIP,
120    ILO_DIRTY_VIEWPORT         = 1 << ILO_STATE_VIEWPORT,
121    ILO_DIRTY_SCISSOR          = 1 << ILO_STATE_SCISSOR,
122    ILO_DIRTY_RASTERIZER       = 1 << ILO_STATE_RASTERIZER,
123    ILO_DIRTY_POLY_STIPPLE     = 1 << ILO_STATE_POLY_STIPPLE,
124    ILO_DIRTY_SAMPLE_MASK      = 1 << ILO_STATE_SAMPLE_MASK,
125    ILO_DIRTY_FS               = 1 << ILO_STATE_FS,
126    ILO_DIRTY_DSA              = 1 << ILO_STATE_DSA,
127    ILO_DIRTY_STENCIL_REF      = 1 << ILO_STATE_STENCIL_REF,
128    ILO_DIRTY_BLEND            = 1 << ILO_STATE_BLEND,
129    ILO_DIRTY_BLEND_COLOR      = 1 << ILO_STATE_BLEND_COLOR,
130    ILO_DIRTY_FB               = 1 << ILO_STATE_FB,
131    ILO_DIRTY_SAMPLER_VS       = 1 << ILO_STATE_SAMPLER_VS,
132    ILO_DIRTY_SAMPLER_GS       = 1 << ILO_STATE_SAMPLER_GS,
133    ILO_DIRTY_SAMPLER_FS       = 1 << ILO_STATE_SAMPLER_FS,
134    ILO_DIRTY_SAMPLER_CS       = 1 << ILO_STATE_SAMPLER_CS,
135    ILO_DIRTY_VIEW_VS          = 1 << ILO_STATE_VIEW_VS,
136    ILO_DIRTY_VIEW_GS          = 1 << ILO_STATE_VIEW_GS,
137    ILO_DIRTY_VIEW_FS          = 1 << ILO_STATE_VIEW_FS,
138    ILO_DIRTY_VIEW_CS          = 1 << ILO_STATE_VIEW_CS,
139    ILO_DIRTY_CBUF             = 1 << ILO_STATE_CBUF,
140    ILO_DIRTY_RESOURCE         = 1 << ILO_STATE_RESOURCE,
141    ILO_DIRTY_CS               = 1 << ILO_STATE_CS,
142    ILO_DIRTY_CS_RESOURCE      = 1 << ILO_STATE_CS_RESOURCE,
143    ILO_DIRTY_GLOBAL_BINDING   = 1 << ILO_STATE_GLOBAL_BINDING,
144    ILO_DIRTY_ALL              = 0xffffffff,
145 };
146 
147 struct ilo_context;
148 struct ilo_shader_state;
149 
150 struct ilo_ve_state {
151    unsigned vb_mapping[PIPE_MAX_ATTRIBS];
152    unsigned vb_count;
153 
154    /* these are not valid until the state is finalized */
155    uint32_t vf_data[PIPE_MAX_ATTRIBS][4];
156    struct ilo_state_vf_params_info vf_params;
157    struct ilo_state_vf vf;
158 };
159 
160 struct ilo_vb_state {
161    struct pipe_vertex_buffer states[PIPE_MAX_ATTRIBS];
162    struct ilo_state_vertex_buffer vb[PIPE_MAX_ATTRIBS];
163    uint32_t enabled_mask;
164 };
165 
166 struct ilo_ib_state {
167    struct pipe_index_buffer state;
168 
169    /* these are not valid until the state is finalized */
170    struct pipe_resource *hw_resource;
171    unsigned hw_index_size;
172    struct ilo_state_index_buffer ib;
173 };
174 
175 struct ilo_cbuf_cso {
176    struct pipe_resource *resource;
177    struct ilo_state_surface_buffer_info info;
178    struct ilo_state_surface surface;
179 
180    /*
181     * this CSO is not so constant because user buffer needs to be uploaded in
182     * finalize_constant_buffers()
183     */
184    const void *user_buffer;
185 };
186 
187 struct ilo_sampler_cso {
188    struct ilo_state_sampler sampler;
189    struct ilo_state_sampler_border border;
190    bool saturate_s;
191    bool saturate_t;
192    bool saturate_r;
193 };
194 
195 struct ilo_sampler_state {
196    const struct ilo_sampler_cso *cso[ILO_MAX_SAMPLERS];
197 };
198 
199 struct ilo_cbuf_state {
200    struct ilo_cbuf_cso cso[ILO_MAX_CONST_BUFFERS];
201    uint32_t enabled_mask;
202 };
203 
204 struct ilo_resource_state {
205    struct pipe_surface *states[PIPE_MAX_SHADER_IMAGES];
206    unsigned count;
207 };
208 
209 struct ilo_view_cso {
210    struct pipe_sampler_view base;
211 
212    struct ilo_state_surface surface;
213 };
214 
215 struct ilo_view_state {
216    struct pipe_sampler_view *states[ILO_MAX_SAMPLER_VIEWS];
217    unsigned count;
218 };
219 
220 struct ilo_stream_output_target {
221    struct pipe_stream_output_target base;
222 
223    struct ilo_state_sol_buffer sb;
224 };
225 
226 struct ilo_so_state {
227    struct pipe_stream_output_target *states[ILO_MAX_SO_BUFFERS];
228    unsigned count;
229    unsigned append_bitmask;
230 
231    struct ilo_state_sol_buffer dummy_sb;
232 
233    bool enabled;
234 };
235 
236 struct ilo_rasterizer_state {
237    struct pipe_rasterizer_state state;
238 
239    /* these are invalid until finalize_rasterizer() */
240    struct ilo_state_raster_info info;
241    struct ilo_state_raster rs;
242 };
243 
244 struct ilo_viewport_state {
245    struct ilo_state_viewport_matrix_info matrices[ILO_MAX_VIEWPORTS];
246    struct ilo_state_viewport_scissor_info scissors[ILO_MAX_VIEWPORTS];
247    struct ilo_state_viewport_params_info params;
248 
249    struct pipe_viewport_state viewport0;
250    struct pipe_scissor_state scissor0;
251 
252    struct ilo_state_viewport vp;
253    uint32_t vp_data[20 * ILO_MAX_VIEWPORTS];
254 };
255 
256 struct ilo_surface_cso {
257    struct pipe_surface base;
258 
259    bool is_rt;
260    union {
261       struct ilo_state_surface rt;
262       struct ilo_state_zs zs;
263    } u;
264 };
265 
266 struct ilo_fb_state {
267    struct pipe_framebuffer_state state;
268 
269    struct ilo_state_surface null_rt;
270    struct ilo_state_zs null_zs;
271 
272    struct ilo_fb_blend_caps {
273       bool is_unorm;
274       bool is_integer;
275       bool force_dst_alpha_one;
276 
277       bool can_logicop;
278       bool can_blend;
279       bool can_alpha_test;
280    } blend_caps[PIPE_MAX_COLOR_BUFS];
281 
282    unsigned num_samples;
283 
284    bool has_integer_rt;
285    bool has_hiz;
286    enum gen_depth_format depth_offset_format;
287 };
288 
289 struct ilo_dsa_state {
290    struct ilo_state_cc_depth_info depth;
291 
292    struct ilo_state_cc_stencil_info stencil;
293    struct {
294       uint8_t test_mask;
295       uint8_t write_mask;
296    } stencil_front, stencil_back;
297 
298    bool alpha_test;
299    float alpha_ref;
300    enum gen_compare_function alpha_func;
301 };
302 
303 struct ilo_blend_state {
304    struct ilo_state_cc_blend_rt_info rt[PIPE_MAX_COLOR_BUFS];
305    struct ilo_state_cc_blend_rt_info dummy_rt;
306    bool dual_blend;
307 
308    /* these are invalid until finalize_blend() */
309    struct ilo_state_cc_blend_rt_info effective_rt[PIPE_MAX_COLOR_BUFS];
310    struct ilo_state_cc_info info;
311    struct ilo_state_cc cc;
312    bool alpha_may_kill;
313 };
314 
315 struct ilo_global_binding_cso {
316    struct pipe_resource *resource;
317    uint32_t *handle;
318 };
319 
320 /*
321  * In theory, we would like a "virtual" bo that serves as the global memory
322  * region.  The virtual bo would reserve a region in the GTT aperture, but the
323  * pages of it would come from those of the global bindings.
324  *
325  * The virtual bo would be created in launch_grid().  The global bindings
326  * would be added to the virtual bo.  A SURFACE_STATE for the virtual bo would
327  * be created.  The handles returned by set_global_binding() would be offsets
328  * into the virtual bo.
329  *
330  * But for now, we will create a SURFACE_STATE for each of the bindings.  The
331  * handle of a global binding consists of the offset and the binding table
332  * index.
333  */
334 struct ilo_global_binding {
335    struct util_dynarray bindings;
336    unsigned count;
337 };
338 
339 struct ilo_state_vector {
340    const struct pipe_draw_info *draw;
341    struct gen6_3dprimitive_info draw_info;
342 
343    uint32_t dirty;
344 
345    struct ilo_vb_state vb;
346    struct ilo_ve_state *ve;
347    struct ilo_ib_state ib;
348 
349    struct ilo_shader_state *vs;
350    struct ilo_shader_state *gs;
351 
352    struct ilo_state_hs disabled_hs;
353    struct ilo_state_ds disabled_ds;
354    struct ilo_state_gs disabled_gs;
355 
356    struct ilo_so_state so;
357 
358    struct pipe_clip_state clip;
359 
360    struct ilo_viewport_state viewport;
361 
362    struct ilo_rasterizer_state *rasterizer;
363 
364    struct ilo_state_line_stipple line_stipple;
365    struct ilo_state_poly_stipple poly_stipple;
366    unsigned sample_mask;
367 
368    struct ilo_shader_state *fs;
369 
370    struct ilo_state_cc_params_info cc_params;
371    struct pipe_stencil_ref stencil_ref;
372    const struct ilo_dsa_state *dsa;
373    struct ilo_blend_state *blend;
374 
375    struct ilo_fb_state fb;
376 
377    struct ilo_state_urb urb;
378 
379    /* shader resources */
380    struct ilo_sampler_state sampler[PIPE_SHADER_TYPES];
381    struct ilo_view_state view[PIPE_SHADER_TYPES];
382    struct ilo_cbuf_state cbuf[PIPE_SHADER_TYPES];
383    struct ilo_resource_state resource;
384 
385    struct ilo_state_sampler disabled_sampler;
386 
387    /* GPGPU */
388    struct ilo_shader_state *cs;
389    struct ilo_resource_state cs_resource;
390    struct ilo_global_binding global_binding;
391 };
392 
393 void
394 ilo_init_state_functions(struct ilo_context *ilo);
395 
396 void
397 ilo_finalize_3d_states(struct ilo_context *ilo,
398                        const struct pipe_draw_info *draw);
399 
400 void
401 ilo_finalize_compute_states(struct ilo_context *ilo);
402 
403 void
404 ilo_state_vector_init(const struct ilo_dev *dev,
405                       struct ilo_state_vector *vec);
406 
407 void
408 ilo_state_vector_cleanup(struct ilo_state_vector *vec);
409 
410 void
411 ilo_state_vector_resource_renamed(struct ilo_state_vector *vec,
412                                   struct pipe_resource *res);
413 
414 void
415 ilo_state_vector_dump_dirty(const struct ilo_state_vector *vec);
416 
417 #endif /* ILO_STATE_H */
418