src/gallium/drivers/svga/svga_context.h

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #ifndef SVGA_CONTEXT_H
  27 #define SVGA_CONTEXT_H
  28
  29
  30 #include "pipe/p_context.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_state.h"
  33
  34 #include "util/u_double_list.h"
  35
  36 #include "tgsi/tgsi_scan.h"
  37
  38 #include "svga_state.h"
  39 #include "svga_tgsi.h"
  40 #include "svga_hw_reg.h"
  41 #include "svga3d_shaderdefs.h"
  42
  43
  44 #define SVGA_MAX_POINTSIZE 80.0
  45
  46 struct draw_vertex_shader;
  47 struct draw_fragment_shader;
  48 struct svga_shader_result;
  49 struct SVGACmdMemory;
  50 struct util_bitmask;
  51 struct u_upload_mgr;
  52
  53
  54 struct svga_shader
  55 {
  56    const struct tgsi_token *tokens;
  57
  58    struct tgsi_shader_info info;
  59
  60    struct svga_shader_result *results;
  61
  62    unsigned id;
  63
  64    boolean use_sm30;
  65 };
  66
  67 struct svga_fragment_shader
  68 {
  69    struct svga_shader base;
  70
  71    struct draw_fragment_shader *draw_shader;
  72
  73    /** Mask of which generic varying variables are read by this shader */
  74    unsigned generic_inputs;
  75    /** Table mapping original TGSI generic indexes to low integers */
  76    int8_t generic_remap_table[MAX_GENERIC_VARYING];
  77 };
  78
  79 struct svga_vertex_shader
  80 {
  81    struct svga_shader base;
  82
  83    struct draw_vertex_shader *draw_shader;
  84 };
  85
  86
  87 struct svga_cache_context;
  88 struct svga_tracked_state;
  89
  90 struct svga_blend_state {
  91
  92    boolean need_white_fragments;
  93
  94    /* Should be per-render-target:
  95     */
  96    struct {
  97       uint8_t writemask;
  98
  99       boolean blend_enable;
 100       uint8_t srcblend;
 101       uint8_t dstblend;
 102       uint8_t blendeq;
 103
 104       boolean separate_alpha_blend_enable;
 105       uint8_t srcblend_alpha;
 106       uint8_t dstblend_alpha;
 107       uint8_t blendeq_alpha;
 108
 109    } rt[1];
 110 };
 111
 112 struct svga_depth_stencil_state {
 113    unsigned zfunc:8;
 114    unsigned zenable:1;
 115    unsigned zwriteenable:1;
 116
 117    unsigned alphatestenable:1;
 118    unsigned alphafunc:8;
 119
 120    struct {
 121       unsigned enabled:1;
 122       unsigned func:8;
 123       unsigned fail:8;
 124       unsigned zfail:8;
 125       unsigned pass:8;
 126    } stencil[2];
 127
 128    /* SVGA3D has one ref/mask/writemask triple shared between front &
 129     * back face stencil.  We really need two:
 130     */
 131    unsigned stencil_mask:8;
 132    unsigned stencil_writemask:8;
 133
 134    float    alpharef;
 135 };
 136
 137 #define SVGA_UNFILLED_DISABLE 0
 138 #define SVGA_UNFILLED_LINE    1
 139 #define SVGA_UNFILLED_POINT   2
 140
 141 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 142 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 143 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 144
 145 struct svga_rasterizer_state {
 146    struct pipe_rasterizer_state templ; /* needed for draw module */
 147
 148    unsigned shademode:8;
 149    unsigned cullmode:8;
 150    unsigned scissortestenable:1;
 151    unsigned multisampleantialias:1;
 152    unsigned antialiasedlineenable:1;
 153    unsigned lastpixel:1;
 154    unsigned pointsprite:1;
 155
 156    unsigned linepattern;
 157
 158    float slopescaledepthbias;
 159    float depthbias;
 160    float pointsize;
 161
 162    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 163
 164    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 165    unsigned need_pipeline:16;
 166
 167    /** For debugging: */
 168    const char* need_pipeline_tris_str;
 169    const char* need_pipeline_lines_str;
 170    const char* need_pipeline_points_str;
 171 };
 172
 173 struct svga_sampler_state {
 174    unsigned mipfilter;
 175    unsigned magfilter;
 176    unsigned minfilter;
 177    unsigned aniso_level;
 178    float lod_bias;
 179    unsigned addressu;
 180    unsigned addressv;
 181    unsigned addressw;
 182    unsigned bordercolor;
 183    unsigned normalized_coords:1;
 184    unsigned compare_mode:1;
 185    unsigned compare_func:3;
 186
 187    unsigned min_lod;
 188    unsigned view_min_lod;
 189    unsigned view_max_lod;
 190 };
 191
 192 struct svga_velems_state {
 193    unsigned count;
 194    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 195 };
 196
 197 /* Use to calculate differences between state emitted to hardware and
 198  * current driver-calculated state.
 199  */
 200 struct svga_state
 201 {
 202    const struct svga_blend_state *blend;
 203    const struct svga_depth_stencil_state *depth;
 204    const struct svga_rasterizer_state *rast;
 205    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 206    const struct svga_velems_state *velems;
 207
 208    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 209    struct svga_fragment_shader *fs;
 210    struct svga_vertex_shader *vs;
 211
 212    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 213    struct pipe_index_buffer ib;
 214    struct pipe_resource *cb[PIPE_SHADER_TYPES];
 215
 216    struct pipe_framebuffer_state framebuffer;
 217    float depthscale;
 218
 219    /* Hack to limit the number of different render targets between
 220     * flushes.  Helps avoid blowing out our surface cache in EXA.
 221     */
 222    int nr_fbs;
 223
 224    struct pipe_poly_stipple poly_stipple;
 225    struct pipe_scissor_state scissor;
 226    struct pipe_blend_color blend_color;
 227    struct pipe_stencil_ref stencil_ref;
 228    struct pipe_clip_state clip;
 229    struct pipe_viewport_state viewport;
 230
 231    unsigned num_samplers;
 232    unsigned num_sampler_views;
 233    unsigned num_vertex_buffers;
 234    unsigned reduced_prim;
 235
 236    struct {
 237       unsigned flag_1d;
 238       unsigned flag_srgb;
 239    } tex_flags;
 240
 241    boolean any_user_vertex_buffers;
 242
 243    unsigned zero_stride_vertex_elements;
 244    unsigned num_zero_stride_vertex_elements;
 245    /* ### maybe dynamically allocate this */
 246    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 247 };
 248
 249 struct svga_prescale {
 250    float translate[4];
 251    float scale[4];
 252    boolean enabled;
 253 };
 254
 255
 256 /* Updated by calling svga_update_state( SVGA_STATE_HW_CLEAR )
 257  */
 258 struct svga_hw_clear_state
 259 {
 260    struct {
 261       unsigned x,y,w,h;
 262    } viewport;
 263
 264    struct {
 265       float zmin, zmax;
 266    } depthrange;
 267
 268    struct pipe_framebuffer_state framebuffer;
 269    struct svga_prescale prescale;
 270 };
 271
 272 struct svga_hw_view_state
 273 {
 274    struct pipe_resource *texture;
 275    struct svga_sampler_view *v;
 276    unsigned min_lod;
 277    unsigned max_lod;
 278    int dirty;
 279 };
 280
 281 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 282  */
 283 struct svga_hw_draw_state
 284 {
 285    unsigned rs[SVGA3D_RS_MAX];
 286    unsigned ts[SVGA3D_PIXEL_SAMPLERREG_MAX][SVGA3D_TS_MAX];
 287    float cb[PIPE_SHADER_TYPES][SVGA3D_CONSTREG_MAX][4];
 288
 289    struct svga_shader_result *fs;
 290    struct svga_shader_result *vs;
 291    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 292
 293    unsigned num_views;
 294 };
 295
 296
 297 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 298  */
 299 struct svga_sw_state
 300 {
 301    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 302
 303    /* which parts we need */
 304    boolean need_swvfetch;
 305    boolean need_pipeline;
 306    boolean need_swtnl;
 307
 308    /* Flag to make sure that need sw is on while
 309     * updating state within a swtnl call.
 310     */
 311    boolean in_swtnl_draw;
 312 };
 313
 314
 315 /* Queue some state updates (like rss) and submit them to hardware in
 316  * a single packet.
 317  */
 318 struct svga_hw_queue;
 319
 320 struct svga_query;
 321
 322 struct svga_context
 323 {
 324    struct pipe_context pipe;
 325    struct svga_winsys_context *swc;
 326
 327    struct {
 328       boolean no_swtnl;
 329       boolean force_swtnl;
 330       boolean use_min_mipmap;
 331
 332       /* incremented for each shader */
 333       unsigned shader_id;
 334
 335       unsigned disable_shader;
 336
 337       boolean no_line_width;
 338       boolean force_hw_line_stipple;
 339    } debug;
 340
 341    struct {
 342       struct draw_context *draw;
 343       struct vbuf_render *backend;
 344       unsigned hw_prim;
 345       boolean new_vbuf;
 346       boolean new_vdecl;
 347    } swtnl;
 348
 349    /* Bitmask of used shader IDs */
 350    struct util_bitmask *fs_bm;
 351    struct util_bitmask *vs_bm;
 352
 353    struct {
 354       unsigned dirty[SVGA_STATE_MAX];
 355
 356       unsigned texture_timestamp;
 357
 358       /*
 359        */
 360       struct svga_sw_state          sw;
 361       struct svga_hw_draw_state     hw_draw;
 362       struct svga_hw_clear_state    hw_clear;
 363    } state;
 364
 365    struct svga_state curr;      /* state from the state tracker */
 366    unsigned dirty;              /* statechanges since last update_state() */
 367
 368    struct {
 369       unsigned rendertargets:1;
 370       unsigned texture_samplers:1;
 371    } rebind;
 372
 373    struct u_upload_mgr *upload_ib;
 374    struct u_upload_mgr *upload_vb;
 375    struct svga_hwtnl *hwtnl;
 376
 377    /** The occlusion query currently in progress */
 378    struct svga_query *sq;
 379
 380    /** List of buffers with queued transfers */
 381    struct list_head dirty_buffers;
 382 };
 383
 384 /* A flag for each state_tracker state object:
 385  */
 386 #define SVGA_NEW_BLEND               0x1
 387 #define SVGA_NEW_DEPTH_STENCIL       0x2
 388 #define SVGA_NEW_RAST                0x4
 389 #define SVGA_NEW_SAMPLER             0x8
 390 #define SVGA_NEW_TEXTURE             0x10
 391 #define SVGA_NEW_VBUFFER             0x20
 392 #define SVGA_NEW_VELEMENT            0x40
 393 #define SVGA_NEW_FS                  0x80
 394 #define SVGA_NEW_VS                  0x100
 395 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 396 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 397 #define SVGA_NEW_FRAME_BUFFER        0x800
 398 #define SVGA_NEW_STIPPLE             0x1000
 399 #define SVGA_NEW_SCISSOR             0x2000
 400 #define SVGA_NEW_BLEND_COLOR         0x4000
 401 #define SVGA_NEW_CLIP                0x8000
 402 #define SVGA_NEW_VIEWPORT            0x10000
 403 #define SVGA_NEW_PRESCALE            0x20000
 404 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 405 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 406 #define SVGA_NEW_NEED_PIPELINE       0x100000
 407 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 408 #define SVGA_NEW_NEED_SWTNL          0x400000
 409 #define SVGA_NEW_FS_RESULT           0x800000
 410 #define SVGA_NEW_VS_RESULT           0x1000000
 411 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 412 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 413 #define SVGA_NEW_STENCIL_REF         0x8000000
 414
 415
 416
 417
 418
 419 /***********************************************************************
 420  * svga_clear.c:
 421  */
 422 void svga_clear(struct pipe_context *pipe,
 423                 unsigned buffers,
 424                 const union pipe_color_union *color,
 425                 double depth,
 426                 unsigned stencil);
 427
 428
 429 /***********************************************************************
 430  * svga_screen_texture.c:
 431  */
 432 void svga_mark_surfaces_dirty(struct svga_context *svga);
 433
 434
 435
 436
 437 void svga_init_state_functions( struct svga_context *svga );
 438 void svga_init_flush_functions( struct svga_context *svga );
 439 void svga_init_string_functions( struct svga_context *svga );
 440 void svga_init_blit_functions(struct svga_context *svga);
 441
 442 void svga_init_blend_functions( struct svga_context *svga );
 443 void svga_init_depth_stencil_functions( struct svga_context *svga );
 444 void svga_init_misc_functions( struct svga_context *svga );
 445 void svga_init_rasterizer_functions( struct svga_context *svga );
 446 void svga_init_sampler_functions( struct svga_context *svga );
 447 void svga_init_fs_functions( struct svga_context *svga );
 448 void svga_init_vs_functions( struct svga_context *svga );
 449 void svga_init_vertex_functions( struct svga_context *svga );
 450 void svga_init_constbuffer_functions( struct svga_context *svga );
 451 void svga_init_draw_functions( struct svga_context *svga );
 452 void svga_init_query_functions( struct svga_context *svga );
 453 void svga_init_surface_functions(struct svga_context *svga);
 454
 455 void svga_cleanup_vertex_state( struct svga_context *svga );
 456 void svga_cleanup_tss_binding( struct svga_context *svga );
 457 void svga_cleanup_framebuffer( struct svga_context *svga );
 458
 459 void svga_context_flush( struct svga_context *svga,
 460                          struct pipe_fence_handle **pfence );
 461
 462 void svga_hwtnl_flush_retry( struct svga_context *svga );
 463 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 464                               struct pipe_resource *buffer );
 465
 466 void svga_surfaces_flush(struct svga_context *svga);
 467
 468 struct pipe_context *
 469 svga_context_create(struct pipe_screen *screen,
 470                     void *priv);
 471
 472
 473 /***********************************************************************
 474  * Inline conversion functions.  These are better-typed than the
 475  * macros used previously:
 476  */
 477 static INLINE struct svga_context *
 478 svga_context( struct pipe_context *pipe )
 479 {
 480    return (struct svga_context *)pipe;
 481 }
 482
 483
 484
 485 #endif