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_TEX_UNITS 8
  45 #define SVGA_MAX_POINTSIZE 80.0
  46
  47 struct draw_vertex_shader;
  48 struct draw_fragment_shader;
  49 struct svga_shader_result;
  50 struct SVGACmdMemory;
  51 struct util_bitmask;
  52 struct u_upload_mgr;
  53
  54
  55 struct svga_shader
  56 {
  57    const struct tgsi_token *tokens;
  58
  59    struct tgsi_shader_info info;
  60
  61    struct svga_shader_result *results;
  62
  63    unsigned id;
  64
  65    boolean use_sm30;
  66 };
  67
  68 struct svga_fragment_shader
  69 {
  70    struct svga_shader base;
  71
  72    struct draw_fragment_shader *draw_shader;
  73
  74    /** Mask of which generic varying variables are read by this shader */
  75    unsigned generic_inputs;
  76    /** Table mapping original TGSI generic indexes to low integers */
  77    int8_t generic_remap_table[MAX_GENERIC_VARYING];
  78 };
  79
  80 struct svga_vertex_shader
  81 {
  82    struct svga_shader base;
  83
  84    struct draw_vertex_shader *draw_shader;
  85 };
  86
  87
  88 struct svga_cache_context;
  89 struct svga_tracked_state;
  90
  91 struct svga_blend_state {
  92
  93    boolean need_white_fragments;
  94
  95    /* Should be per-render-target:
  96     */
  97    struct {
  98       uint8_t writemask;
  99
 100       boolean blend_enable;
 101       uint8_t srcblend;
 102       uint8_t dstblend;
 103       uint8_t blendeq;
 104
 105       boolean separate_alpha_blend_enable;
 106       uint8_t srcblend_alpha;
 107       uint8_t dstblend_alpha;
 108       uint8_t blendeq_alpha;
 109
 110    } rt[1];
 111 };
 112
 113 struct svga_depth_stencil_state {
 114    unsigned zfunc:8;
 115    unsigned zenable:1;
 116    unsigned zwriteenable:1;
 117
 118    unsigned alphatestenable:1;
 119    unsigned alphafunc:8;
 120
 121    struct {
 122       unsigned enabled:1;
 123       unsigned func:8;
 124       unsigned fail:8;
 125       unsigned zfail:8;
 126       unsigned pass:8;
 127    } stencil[2];
 128
 129    /* SVGA3D has one ref/mask/writemask triple shared between front &
 130     * back face stencil.  We really need two:
 131     */
 132    unsigned stencil_mask:8;
 133    unsigned stencil_writemask:8;
 134
 135    float    alpharef;
 136 };
 137
 138 #define SVGA_UNFILLED_DISABLE 0
 139 #define SVGA_UNFILLED_LINE    1
 140 #define SVGA_UNFILLED_POINT   2
 141
 142 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 143 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 144 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 145
 146 struct svga_rasterizer_state {
 147    struct pipe_rasterizer_state templ; /* needed for draw module */
 148
 149    unsigned shademode:8;
 150    unsigned cullmode:8;
 151    unsigned scissortestenable:1;
 152    unsigned multisampleantialias:1;
 153    unsigned antialiasedlineenable:1;
 154    unsigned lastpixel:1;
 155    unsigned pointsprite:1;
 156
 157    unsigned linepattern;
 158
 159    float slopescaledepthbias;
 160    float depthbias;
 161    float pointsize;
 162
 163    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 164
 165    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 166    unsigned need_pipeline:16;
 167
 168    /** For debugging: */
 169    const char* need_pipeline_tris_str;
 170    const char* need_pipeline_lines_str;
 171    const char* need_pipeline_points_str;
 172 };
 173
 174 struct svga_sampler_state {
 175    unsigned mipfilter;
 176    unsigned magfilter;
 177    unsigned minfilter;
 178    unsigned aniso_level;
 179    float lod_bias;
 180    unsigned addressu;
 181    unsigned addressv;
 182    unsigned addressw;
 183    unsigned bordercolor;
 184    unsigned normalized_coords:1;
 185    unsigned compare_mode:1;
 186    unsigned compare_func:3;
 187
 188    unsigned min_lod;
 189    unsigned view_min_lod;
 190    unsigned view_max_lod;
 191 };
 192
 193 struct svga_velems_state {
 194    unsigned count;
 195    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 196 };
 197
 198 /* Use to calculate differences between state emitted to hardware and
 199  * current driver-calculated state.
 200  */
 201 struct svga_state
 202 {
 203    const struct svga_blend_state *blend;
 204    const struct svga_depth_stencil_state *depth;
 205    const struct svga_rasterizer_state *rast;
 206    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 207    const struct svga_velems_state *velems;
 208
 209    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 210    struct svga_fragment_shader *fs;
 211    struct svga_vertex_shader *vs;
 212
 213    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 214    struct pipe_index_buffer ib;
 215    struct pipe_resource *cb[PIPE_SHADER_TYPES];
 216
 217    struct pipe_framebuffer_state framebuffer;
 218    float depthscale;
 219
 220    /* Hack to limit the number of different render targets between
 221     * flushes.  Helps avoid blowing out our surface cache in EXA.
 222     */
 223    int nr_fbs;
 224
 225    struct pipe_poly_stipple poly_stipple;
 226    struct pipe_scissor_state scissor;
 227    struct pipe_blend_color blend_color;
 228    struct pipe_stencil_ref stencil_ref;
 229    struct pipe_clip_state clip;
 230    struct pipe_viewport_state viewport;
 231
 232    unsigned num_samplers;
 233    unsigned num_sampler_views;
 234    unsigned num_vertex_buffers;
 235    unsigned reduced_prim;
 236
 237    struct {
 238       unsigned flag_1d;
 239       unsigned flag_srgb;
 240    } tex_flags;
 241
 242    boolean any_user_vertex_buffers;
 243
 244    unsigned zero_stride_vertex_elements;
 245    unsigned num_zero_stride_vertex_elements;
 246    /* ### maybe dynamically allocate this */
 247    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 248 };
 249
 250 struct svga_prescale {
 251    float translate[4];
 252    float scale[4];
 253    boolean enabled;
 254 };
 255
 256
 257 /* Updated by calling svga_update_state( SVGA_STATE_HW_CLEAR )
 258  */
 259 struct svga_hw_clear_state
 260 {
 261    struct {
 262       unsigned x,y,w,h;
 263    } viewport;
 264
 265    struct {
 266       float zmin, zmax;
 267    } depthrange;
 268
 269    struct pipe_framebuffer_state framebuffer;
 270    struct svga_prescale prescale;
 271 };
 272
 273 struct svga_hw_view_state
 274 {
 275    struct pipe_resource *texture;
 276    struct svga_sampler_view *v;
 277    unsigned min_lod;
 278    unsigned max_lod;
 279    int dirty;
 280 };
 281
 282 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 283  */
 284 struct svga_hw_draw_state
 285 {
 286    unsigned rs[SVGA3D_RS_MAX];
 287    unsigned ts[SVGA3D_PIXEL_SAMPLERREG_MAX][SVGA3D_TS_MAX];
 288    float cb[PIPE_SHADER_TYPES][SVGA3D_CONSTREG_MAX][4];
 289
 290    struct svga_shader_result *fs;
 291    struct svga_shader_result *vs;
 292    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 293
 294    unsigned num_views;
 295 };
 296
 297
 298 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 299  */
 300 struct svga_sw_state
 301 {
 302    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 303
 304    /* which parts we need */
 305    boolean need_swvfetch;
 306    boolean need_pipeline;
 307    boolean need_swtnl;
 308
 309    /* Flag to make sure that need sw is on while
 310     * updating state within a swtnl call.
 311     */
 312    boolean in_swtnl_draw;
 313 };
 314
 315
 316 /* Queue some state updates (like rss) and submit them to hardware in
 317  * a single packet.
 318  */
 319 struct svga_hw_queue;
 320
 321 struct svga_query;
 322
 323 struct svga_context
 324 {
 325    struct pipe_context pipe;
 326    struct svga_winsys_context *swc;
 327
 328    struct {
 329       boolean no_swtnl;
 330       boolean force_swtnl;
 331       boolean use_min_mipmap;
 332
 333       /* incremented for each shader */
 334       unsigned shader_id;
 335
 336       unsigned disable_shader;
 337
 338       boolean no_line_width;
 339       boolean force_hw_line_stipple;
 340    } debug;
 341
 342    struct {
 343       struct draw_context *draw;
 344       struct vbuf_render *backend;
 345       unsigned hw_prim;
 346       boolean new_vbuf;
 347       boolean new_vdecl;
 348    } swtnl;
 349
 350    /* Bitmask of used shader IDs */
 351    struct util_bitmask *fs_bm;
 352    struct util_bitmask *vs_bm;
 353
 354    struct {
 355       unsigned dirty[SVGA_STATE_MAX];
 356
 357       unsigned texture_timestamp;
 358
 359       /*
 360        */
 361       struct svga_sw_state          sw;
 362       struct svga_hw_draw_state     hw_draw;
 363       struct svga_hw_clear_state    hw_clear;
 364    } state;
 365
 366    struct svga_state curr;      /* state from the state tracker */
 367    unsigned dirty;              /* statechanges since last update_state() */
 368
 369    struct {
 370       unsigned rendertargets:1;
 371       unsigned texture_samplers:1;
 372    } rebind;
 373
 374    struct u_upload_mgr *upload_ib;
 375    struct u_upload_mgr *upload_vb;
 376    struct svga_hwtnl *hwtnl;
 377
 378    /** The occlusion query currently in progress */
 379    struct svga_query *sq;
 380
 381    /** List of buffers with queued transfers */
 382    struct list_head dirty_buffers;
 383 };
 384
 385 /* A flag for each state_tracker state object:
 386  */
 387 #define SVGA_NEW_BLEND               0x1
 388 #define SVGA_NEW_DEPTH_STENCIL       0x2
 389 #define SVGA_NEW_RAST                0x4
 390 #define SVGA_NEW_SAMPLER             0x8
 391 #define SVGA_NEW_TEXTURE             0x10
 392 #define SVGA_NEW_VBUFFER             0x20
 393 #define SVGA_NEW_VELEMENT            0x40
 394 #define SVGA_NEW_FS                  0x80
 395 #define SVGA_NEW_VS                  0x100
 396 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 397 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 398 #define SVGA_NEW_FRAME_BUFFER        0x800
 399 #define SVGA_NEW_STIPPLE             0x1000
 400 #define SVGA_NEW_SCISSOR             0x2000
 401 #define SVGA_NEW_BLEND_COLOR         0x4000
 402 #define SVGA_NEW_CLIP                0x8000
 403 #define SVGA_NEW_VIEWPORT            0x10000
 404 #define SVGA_NEW_PRESCALE            0x20000
 405 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 406 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 407 #define SVGA_NEW_NEED_PIPELINE       0x100000
 408 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 409 #define SVGA_NEW_NEED_SWTNL          0x400000
 410 #define SVGA_NEW_FS_RESULT           0x800000
 411 #define SVGA_NEW_VS_RESULT           0x1000000
 412 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 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