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_blitter.h"
  35 #include "util/u_double_list.h"
  36
  37 #include "tgsi/tgsi_scan.h"
  38
  39 #include "svga_screen.h"
  40 #include "svga_state.h"
  41 #include "svga_tgsi.h"
  42 #include "svga_winsys.h"
  43 #include "svga_hw_reg.h"
  44 #include "svga3d_shaderdefs.h"
  45
  46
  47 /** Non-GPU queries for gallium HUD */
  48 #define SVGA_QUERY_DRAW_CALLS   (PIPE_QUERY_DRIVER_SPECIFIC + 0)
  49 #define SVGA_QUERY_FALLBACKS    (PIPE_QUERY_DRIVER_SPECIFIC + 1)
  50 #define SVGA_QUERY_MEMORY_USED  (PIPE_QUERY_DRIVER_SPECIFIC + 2)
  51
  52
  53 struct draw_vertex_shader;
  54 struct draw_fragment_shader;
  55 struct svga_shader_variant;
  56 struct SVGACmdMemory;
  57 struct util_bitmask;
  58
  59
  60 struct svga_shader
  61 {
  62    const struct tgsi_token *tokens;
  63
  64    struct tgsi_shader_info info;
  65
  66    /** Head of linked list of variants */
  67    struct svga_shader_variant *variants;
  68
  69    unsigned id;  /**< for debugging only */
  70 };
  71
  72
  73 struct svga_fragment_shader
  74 {
  75    struct svga_shader base;
  76
  77    struct draw_fragment_shader *draw_shader;
  78
  79    /** Mask of which generic varying variables are read by this shader */
  80    unsigned generic_inputs;
  81    /** Table mapping original TGSI generic indexes to low integers */
  82    int8_t generic_remap_table[MAX_GENERIC_VARYING];
  83 };
  84
  85
  86 struct svga_vertex_shader
  87 {
  88    struct svga_shader base;
  89
  90    struct draw_vertex_shader *draw_shader;
  91 };
  92
  93
  94 struct svga_cache_context;
  95 struct svga_tracked_state;
  96
  97 struct svga_blend_state {
  98
  99    boolean need_white_fragments;
 100
 101    /* Should be per-render-target:
 102     */
 103    struct {
 104       uint8_t writemask;
 105
 106       boolean blend_enable;
 107       uint8_t srcblend;
 108       uint8_t dstblend;
 109       uint8_t blendeq;
 110
 111       boolean separate_alpha_blend_enable;
 112       uint8_t srcblend_alpha;
 113       uint8_t dstblend_alpha;
 114       uint8_t blendeq_alpha;
 115
 116    } rt[1];
 117 };
 118
 119 struct svga_depth_stencil_state {
 120    unsigned zfunc:8;
 121    unsigned zenable:1;
 122    unsigned zwriteenable:1;
 123
 124    unsigned alphatestenable:1;
 125    unsigned alphafunc:8;
 126
 127    struct {
 128       unsigned enabled:1;
 129       unsigned func:8;
 130       unsigned fail:8;
 131       unsigned zfail:8;
 132       unsigned pass:8;
 133    } stencil[2];
 134
 135    /* SVGA3D has one ref/mask/writemask triple shared between front &
 136     * back face stencil.  We really need two:
 137     */
 138    unsigned stencil_mask:8;
 139    unsigned stencil_writemask:8;
 140
 141    float    alpharef;
 142 };
 143
 144 #define SVGA_UNFILLED_DISABLE 0
 145 #define SVGA_UNFILLED_LINE    1
 146 #define SVGA_UNFILLED_POINT   2
 147
 148 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 149 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 150 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 151
 152 struct svga_rasterizer_state {
 153    struct pipe_rasterizer_state templ; /* needed for draw module */
 154
 155    unsigned shademode:8;
 156    unsigned cullmode:8;
 157    unsigned scissortestenable:1;
 158    unsigned multisampleantialias:1;
 159    unsigned antialiasedlineenable:1;
 160    unsigned lastpixel:1;
 161    unsigned pointsprite:1;
 162
 163    unsigned linepattern;
 164
 165    float slopescaledepthbias;
 166    float depthbias;
 167    float pointsize;
 168    float linewidth;
 169
 170    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 171
 172    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 173    unsigned need_pipeline:16;
 174
 175    /** For debugging: */
 176    const char* need_pipeline_tris_str;
 177    const char* need_pipeline_lines_str;
 178    const char* need_pipeline_points_str;
 179 };
 180
 181 struct svga_sampler_state {
 182    unsigned mipfilter;
 183    unsigned magfilter;
 184    unsigned minfilter;
 185    unsigned aniso_level;
 186    float lod_bias;
 187    unsigned addressu;
 188    unsigned addressv;
 189    unsigned addressw;
 190    unsigned bordercolor;
 191    unsigned normalized_coords:1;
 192    unsigned compare_mode:1;
 193    unsigned compare_func:3;
 194
 195    unsigned min_lod;
 196    unsigned view_min_lod;
 197    unsigned view_max_lod;
 198 };
 199
 200 struct svga_velems_state {
 201    unsigned count;
 202    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 203    SVGA3dDeclType decl_type[PIPE_MAX_ATTRIBS]; /**< vertex attrib formats */
 204 };
 205
 206 /* Use to calculate differences between state emitted to hardware and
 207  * current driver-calculated state.
 208  */
 209 struct svga_state
 210 {
 211    const struct svga_blend_state *blend;
 212    const struct svga_depth_stencil_state *depth;
 213    const struct svga_rasterizer_state *rast;
 214    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 215    const struct svga_velems_state *velems;
 216
 217    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 218    struct svga_fragment_shader *fs;
 219    struct svga_vertex_shader *vs;
 220
 221    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 222    struct pipe_index_buffer ib;
 223    struct pipe_constant_buffer cbufs[PIPE_SHADER_TYPES];
 224
 225    struct pipe_framebuffer_state framebuffer;
 226    float depthscale;
 227
 228    /* Hack to limit the number of different render targets between
 229     * flushes.  Helps avoid blowing out our surface cache in EXA.
 230     */
 231    int nr_fbs;
 232
 233    struct pipe_poly_stipple poly_stipple;
 234    struct pipe_scissor_state scissor;
 235    struct pipe_blend_color blend_color;
 236    struct pipe_stencil_ref stencil_ref;
 237    struct pipe_clip_state clip;
 238    struct pipe_viewport_state viewport;
 239
 240    unsigned num_samplers;
 241    unsigned num_sampler_views;
 242    unsigned num_vertex_buffers;
 243    unsigned reduced_prim;
 244
 245    struct {
 246       unsigned flag_1d;
 247       unsigned flag_srgb;
 248    } tex_flags;
 249 };
 250
 251 struct svga_prescale {
 252    float translate[4];
 253    float scale[4];
 254    boolean enabled;
 255 };
 256
 257
 258 /* Updated by calling svga_update_state( SVGA_STATE_HW_CLEAR )
 259  */
 260 struct svga_hw_clear_state
 261 {
 262    struct {
 263       unsigned x,y,w,h;
 264    } viewport;
 265
 266    struct {
 267       float zmin, zmax;
 268    } depthrange;
 269
 270    struct pipe_framebuffer_state framebuffer;
 271    struct svga_prescale prescale;
 272 };
 273
 274 struct svga_hw_view_state
 275 {
 276    struct pipe_resource *texture;
 277    struct svga_sampler_view *v;
 278    unsigned min_lod;
 279    unsigned max_lod;
 280    int dirty;
 281 };
 282
 283 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 284  */
 285 struct svga_hw_draw_state
 286 {
 287    unsigned rs[SVGA3D_RS_MAX];
 288    unsigned ts[SVGA3D_PIXEL_SAMPLERREG_MAX][SVGA3D_TS_MAX];
 289    float cb[PIPE_SHADER_TYPES][SVGA3D_CONSTREG_MAX][4];
 290
 291    /**
 292     * For guest backed shader constants only.
 293     */
 294    struct svga_winsys_surface *hw_cb[PIPE_SHADER_TYPES];
 295
 296    struct svga_shader_variant *fs;
 297    struct svga_shader_variant *vs;
 298    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 299
 300    unsigned num_views;
 301 };
 302
 303
 304 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 305  */
 306 struct svga_sw_state
 307 {
 308    /* which parts we need */
 309    boolean need_swvfetch;
 310    boolean need_pipeline;
 311    boolean need_swtnl;
 312
 313    /* Flag to make sure that need sw is on while
 314     * updating state within a swtnl call.
 315     */
 316    boolean in_swtnl_draw;
 317 };
 318
 319
 320 /* Queue some state updates (like rss) and submit them to hardware in
 321  * a single packet.
 322  */
 323 struct svga_hw_queue;
 324
 325 struct svga_query;
 326
 327 struct svga_context
 328 {
 329    struct pipe_context pipe;
 330    struct svga_winsys_context *swc;
 331    struct blitter_context *blitter;
 332
 333    struct {
 334       boolean no_swtnl;
 335       boolean force_swtnl;
 336       boolean use_min_mipmap;
 337
 338       /* incremented for each shader */
 339       unsigned shader_id;
 340
 341       unsigned disable_shader;
 342
 343       boolean no_line_width;
 344       boolean force_hw_line_stipple;
 345    } debug;
 346
 347    struct {
 348       struct draw_context *draw;
 349       struct vbuf_render *backend;
 350       unsigned hw_prim;
 351       boolean new_vbuf;
 352       boolean new_vdecl;
 353    } swtnl;
 354
 355    /* Bitmask of used shader IDs */
 356    struct util_bitmask *shader_id_bm;
 357
 358    struct {
 359       unsigned dirty[SVGA_STATE_MAX];
 360
 361       unsigned texture_timestamp;
 362
 363       /*
 364        */
 365       struct svga_sw_state          sw;
 366       struct svga_hw_draw_state     hw_draw;
 367       struct svga_hw_clear_state    hw_clear;
 368    } state;
 369
 370    struct svga_state curr;      /* state from the state tracker */
 371    unsigned dirty;              /* statechanges since last update_state() */
 372
 373    struct {
 374       unsigned rendertargets:1;
 375       unsigned texture_samplers:1;
 376       unsigned vs:1;
 377       unsigned fs:1;
 378    } rebind;
 379
 380    struct svga_hwtnl *hwtnl;
 381
 382    /** The occlusion query currently in progress */
 383    struct svga_query *sq;
 384
 385    /** List of buffers with queued transfers */
 386    struct list_head dirty_buffers;
 387
 388    /** performance / info queries */
 389    uint64_t num_draw_calls;  /**< SVGA_QUERY_DRAW_CALLS */
 390    uint64_t num_fallbacks;   /**< SVGA_QUERY_FALLBACKS */
 391 };
 392
 393 /* A flag for each state_tracker state object:
 394  */
 395 #define SVGA_NEW_BLEND               0x1
 396 #define SVGA_NEW_DEPTH_STENCIL       0x2
 397 #define SVGA_NEW_RAST                0x4
 398 #define SVGA_NEW_SAMPLER             0x8
 399 #define SVGA_NEW_TEXTURE             0x10
 400 #define SVGA_NEW_VBUFFER             0x20
 401 #define SVGA_NEW_VELEMENT            0x40
 402 #define SVGA_NEW_FS                  0x80
 403 #define SVGA_NEW_VS                  0x100
 404 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 405 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 406 #define SVGA_NEW_FRAME_BUFFER        0x800
 407 #define SVGA_NEW_STIPPLE             0x1000
 408 #define SVGA_NEW_SCISSOR             0x2000
 409 #define SVGA_NEW_BLEND_COLOR         0x4000
 410 #define SVGA_NEW_CLIP                0x8000
 411 #define SVGA_NEW_VIEWPORT            0x10000
 412 #define SVGA_NEW_PRESCALE            0x20000
 413 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 414 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 415 #define SVGA_NEW_NEED_PIPELINE       0x100000
 416 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 417 #define SVGA_NEW_NEED_SWTNL          0x400000
 418 #define SVGA_NEW_FS_VARIANT          0x800000
 419 #define SVGA_NEW_VS_VARIANT          0x1000000
 420 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 421 #define SVGA_NEW_STENCIL_REF         0x8000000
 422
 423
 424
 425
 426
 427 /***********************************************************************
 428  * svga_clear.c:
 429  */
 430 void svga_clear(struct pipe_context *pipe,
 431                 unsigned buffers,
 432                 const union pipe_color_union *color,
 433                 double depth,
 434                 unsigned stencil);
 435
 436
 437 /***********************************************************************
 438  * svga_screen_texture.c:
 439  */
 440 void svga_mark_surfaces_dirty(struct svga_context *svga);
 441
 442
 443
 444
 445 void svga_init_state_functions( struct svga_context *svga );
 446 void svga_init_flush_functions( struct svga_context *svga );
 447 void svga_init_string_functions( struct svga_context *svga );
 448 void svga_init_blit_functions(struct svga_context *svga);
 449
 450 void svga_init_blend_functions( struct svga_context *svga );
 451 void svga_init_depth_stencil_functions( struct svga_context *svga );
 452 void svga_init_misc_functions( struct svga_context *svga );
 453 void svga_init_rasterizer_functions( struct svga_context *svga );
 454 void svga_init_sampler_functions( struct svga_context *svga );
 455 void svga_init_fs_functions( struct svga_context *svga );
 456 void svga_init_vs_functions( struct svga_context *svga );
 457 void svga_init_vertex_functions( struct svga_context *svga );
 458 void svga_init_constbuffer_functions( struct svga_context *svga );
 459 void svga_init_draw_functions( struct svga_context *svga );
 460 void svga_init_query_functions( struct svga_context *svga );
 461 void svga_init_surface_functions(struct svga_context *svga);
 462
 463 void svga_cleanup_vertex_state( struct svga_context *svga );
 464 void svga_cleanup_tss_binding( struct svga_context *svga );
 465 void svga_cleanup_framebuffer( struct svga_context *svga );
 466
 467 void svga_context_flush( struct svga_context *svga,
 468                          struct pipe_fence_handle **pfence );
 469
 470 void svga_hwtnl_flush_retry( struct svga_context *svga );
 471 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 472                               struct pipe_resource *buffer );
 473
 474 void svga_surfaces_flush(struct svga_context *svga);
 475
 476 struct pipe_context *
 477 svga_context_create(struct pipe_screen *screen,
 478                     void *priv);
 479
 480
 481 /***********************************************************************
 482  * Inline conversion functions.  These are better-typed than the
 483  * macros used previously:
 484  */
 485 static INLINE struct svga_context *
 486 svga_context( struct pipe_context *pipe )
 487 {
 488    return (struct svga_context *)pipe;
 489 }
 490
 491
 492 static INLINE boolean
 493 svga_have_gb_objects(const struct svga_context *svga)
 494 {
 495    return svga_screen(svga->pipe.screen)->sws->have_gb_objects;
 496 }
 497
 498 static INLINE boolean
 499 svga_have_gb_dma(const struct svga_context *svga)
 500 {
 501    return svga_screen(svga->pipe.screen)->sws->have_gb_dma;
 502 }
 503
 504
 505 #endif