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