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