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