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
  40
  41 #define SVGA_TEX_UNITS 8
  42 #define SVGA_MAX_POINTSIZE 80.0
  43
  44 struct draw_vertex_shader;
  45 struct svga_shader_result;
  46 struct SVGACmdMemory;
  47 struct util_bitmask;
  48 struct u_upload_mgr;
  49
  50
  51 struct svga_shader
  52 {
  53    const struct tgsi_token *tokens;
  54
  55    struct tgsi_shader_info info;
  56
  57    struct svga_shader_result *results;
  58
  59    unsigned id;
  60
  61    boolean use_sm30;
  62 };
  63
  64 struct svga_fragment_shader
  65 {
  66    struct svga_shader base;
  67 };
  68
  69 struct svga_vertex_shader
  70 {
  71    struct svga_shader base;
  72
  73    struct draw_vertex_shader *draw_shader;
  74 };
  75
  76
  77 struct svga_cache_context;
  78 struct svga_tracked_state;
  79
  80 struct svga_blend_state {
  81
  82    boolean need_white_fragments;
  83
  84    /* Should be per-render-target:
  85     */
  86    struct {
  87       uint8_t writemask;
  88
  89       boolean blend_enable;
  90       uint8_t srcblend;
  91       uint8_t dstblend;
  92       uint8_t blendeq;
  93
  94       boolean separate_alpha_blend_enable;
  95       uint8_t srcblend_alpha;
  96       uint8_t dstblend_alpha;
  97       uint8_t blendeq_alpha;
  98
  99    } rt[1];
 100 };
 101
 102 struct svga_depth_stencil_state {
 103    unsigned zfunc:8;
 104    unsigned zenable:1;
 105    unsigned zwriteenable:1;
 106
 107    unsigned alphatestenable:1;
 108    unsigned alphafunc:8;
 109
 110    struct {
 111       unsigned enabled:1;
 112       unsigned func:8;
 113       unsigned fail:8;
 114       unsigned zfail:8;
 115       unsigned pass:8;
 116    } stencil[2];
 117
 118    /* SVGA3D has one ref/mask/writemask triple shared between front &
 119     * back face stencil.  We really need two:
 120     */
 121    unsigned stencil_mask:8;
 122    unsigned stencil_writemask:8;
 123
 124    float    alpharef;
 125 };
 126
 127 #define SVGA_UNFILLED_DISABLE 0
 128 #define SVGA_UNFILLED_LINE    1
 129 #define SVGA_UNFILLED_POINT   2
 130
 131 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 132 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 133 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 134
 135 struct svga_rasterizer_state {
 136    struct pipe_rasterizer_state templ; /* needed for draw module */
 137
 138    unsigned shademode:8;
 139    unsigned cullmode:8;
 140    unsigned scissortestenable:1;
 141    unsigned multisampleantialias:1;
 142    unsigned antialiasedlineenable:1;
 143    unsigned lastpixel:1;
 144    unsigned pointsprite:1;
 145
 146    unsigned linepattern;
 147
 148    float slopescaledepthbias;
 149    float depthbias;
 150    float pointsize;
 151
 152    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 153
 154    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 155    unsigned need_pipeline:16;
 156
 157    /** For debugging: */
 158    const char* need_pipeline_tris_str;
 159    const char* need_pipeline_lines_str;
 160    const char* need_pipeline_points_str;
 161 };
 162
 163 struct svga_sampler_state {
 164    unsigned mipfilter;
 165    unsigned magfilter;
 166    unsigned minfilter;
 167    unsigned aniso_level;
 168    float lod_bias;
 169    unsigned addressu;
 170    unsigned addressv;
 171    unsigned addressw;
 172    unsigned bordercolor;
 173    unsigned normalized_coords:1;
 174    unsigned compare_mode:1;
 175    unsigned compare_func:3;
 176
 177    unsigned min_lod;
 178    unsigned view_min_lod;
 179    unsigned view_max_lod;
 180 };
 181
 182 struct svga_velems_state {
 183    unsigned count;
 184    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 185 };
 186
 187 /* Use to calculate differences between state emitted to hardware and
 188  * current driver-calculated state.
 189  */
 190 struct svga_state
 191 {
 192    const struct svga_blend_state *blend;
 193    const struct svga_depth_stencil_state *depth;
 194    const struct svga_rasterizer_state *rast;
 195    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 196    const struct svga_velems_state *velems;
 197
 198    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 199    struct svga_fragment_shader *fs;
 200    struct svga_vertex_shader *vs;
 201
 202    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 203    struct pipe_index_buffer ib;
 204    struct pipe_resource *cb[PIPE_SHADER_TYPES];
 205
 206    struct pipe_framebuffer_state framebuffer;
 207    float depthscale;
 208
 209    /* Hack to limit the number of different render targets between
 210     * flushes.  Helps avoid blowing out our surface cache in EXA.
 211     */
 212    int nr_fbs;
 213
 214    struct pipe_poly_stipple poly_stipple;
 215    struct pipe_scissor_state scissor;
 216    struct pipe_blend_color blend_color;
 217    struct pipe_stencil_ref stencil_ref;
 218    struct pipe_clip_state clip;
 219    struct pipe_viewport_state viewport;
 220
 221    unsigned num_samplers;
 222    unsigned num_sampler_views;
 223    unsigned num_vertex_buffers;
 224    unsigned reduced_prim;
 225
 226    struct {
 227       unsigned flag_1d;
 228       unsigned flag_srgb;
 229    } tex_flags;
 230
 231    boolean any_user_vertex_buffers;
 232
 233    unsigned zero_stride_vertex_elements;
 234    unsigned num_zero_stride_vertex_elements;
 235    /* ### maybe dynamically allocate this */
 236    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 237 };
 238
 239 #define RS_MAX 97
 240 #define TS_MAX 30
 241 #define CB_MAX 256
 242
 243 struct svga_prescale {
 244    float translate[4];
 245    float scale[4];
 246    boolean enabled;
 247 };
 248
 249
 250 /* Updated by calling svga_update_state( SVGA_STATE_HW_CLEAR )
 251  */
 252 struct svga_hw_clear_state
 253 {
 254    struct {
 255       unsigned x,y,w,h;
 256    } viewport;
 257
 258    struct {
 259       float zmin, zmax;
 260    } depthrange;
 261
 262    struct pipe_framebuffer_state framebuffer;
 263    struct svga_prescale prescale;
 264 };
 265
 266 struct svga_hw_view_state
 267 {
 268    struct pipe_resource *texture;
 269    struct svga_sampler_view *v;
 270    unsigned min_lod;
 271    unsigned max_lod;
 272    int dirty;
 273 };
 274
 275 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 276  */
 277 struct svga_hw_draw_state
 278 {
 279    unsigned rs[RS_MAX];
 280    unsigned ts[16][TS_MAX];
 281    float cb[PIPE_SHADER_TYPES][CB_MAX][4];
 282
 283    struct svga_shader_result *fs;
 284    struct svga_shader_result *vs;
 285    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 286
 287    unsigned num_views;
 288 };
 289
 290
 291 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 292  */
 293 struct svga_sw_state
 294 {
 295    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 296
 297    /* which parts we need */
 298    boolean need_swvfetch;
 299    boolean need_pipeline;
 300    boolean need_swtnl;
 301
 302    /* Flag to make sure that need sw is on while
 303     * updating state within a swtnl call.
 304     */
 305    boolean in_swtnl_draw;
 306 };
 307
 308
 309 /* Queue some state updates (like rss) and submit them to hardware in
 310  * a single packet.
 311  */
 312 struct svga_hw_queue;
 313
 314 struct svga_query;
 315
 316 struct svga_context
 317 {
 318    struct pipe_context pipe;
 319    struct svga_winsys_context *swc;
 320
 321    struct {
 322       boolean no_swtnl;
 323       boolean force_swtnl;
 324       boolean use_min_mipmap;
 325
 326       /* incremented for each shader */
 327       unsigned shader_id;
 328
 329       unsigned disable_shader;
 330
 331       boolean no_line_width;
 332       boolean force_hw_line_stipple;
 333    } debug;
 334
 335    struct {
 336       struct draw_context *draw;
 337       struct vbuf_render *backend;
 338       unsigned hw_prim;
 339       boolean new_vbuf;
 340       boolean new_vdecl;
 341    } swtnl;
 342
 343    /* Bitmask of used shader IDs */
 344    struct util_bitmask *fs_bm;
 345    struct util_bitmask *vs_bm;
 346
 347    struct {
 348       unsigned dirty[SVGA_STATE_MAX];
 349
 350       unsigned texture_timestamp;
 351
 352       /*
 353        */
 354       struct svga_sw_state          sw;
 355       struct svga_hw_draw_state     hw_draw;
 356       struct svga_hw_clear_state    hw_clear;
 357    } state;
 358
 359    struct svga_state curr;      /* state from the state tracker */
 360    unsigned dirty;              /* statechanges since last update_state() */
 361
 362    struct {
 363       unsigned rendertargets:1;
 364       unsigned texture_samplers:1;
 365    } rebind;
 366
 367    struct u_upload_mgr *upload_ib;
 368    struct u_upload_mgr *upload_vb;
 369    struct svga_hwtnl *hwtnl;
 370
 371    /** The occlusion query currently in progress */
 372    struct svga_query *sq;
 373
 374    /** List of buffers with queued transfers */
 375    struct list_head dirty_buffers;
 376 };
 377
 378 /* A flag for each state_tracker state object:
 379  */
 380 #define SVGA_NEW_BLEND               0x1
 381 #define SVGA_NEW_DEPTH_STENCIL       0x2
 382 #define SVGA_NEW_RAST                0x4
 383 #define SVGA_NEW_SAMPLER             0x8
 384 #define SVGA_NEW_TEXTURE             0x10
 385 #define SVGA_NEW_VBUFFER             0x20
 386 #define SVGA_NEW_VELEMENT            0x40
 387 #define SVGA_NEW_FS                  0x80
 388 #define SVGA_NEW_VS                  0x100
 389 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 390 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 391 #define SVGA_NEW_FRAME_BUFFER        0x800
 392 #define SVGA_NEW_STIPPLE             0x1000
 393 #define SVGA_NEW_SCISSOR             0x2000
 394 #define SVGA_NEW_BLEND_COLOR         0x4000
 395 #define SVGA_NEW_CLIP                0x8000
 396 #define SVGA_NEW_VIEWPORT            0x10000
 397 #define SVGA_NEW_PRESCALE            0x20000
 398 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 399 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 400 #define SVGA_NEW_NEED_PIPELINE       0x100000
 401 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 402 #define SVGA_NEW_NEED_SWTNL          0x400000
 403 #define SVGA_NEW_FS_RESULT           0x800000
 404 #define SVGA_NEW_VS_RESULT           0x1000000
 405 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 406 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 407 #define SVGA_NEW_STENCIL_REF         0x8000000
 408
 409
 410
 411
 412
 413 /***********************************************************************
 414  * svga_clear.c:
 415  */
 416 void svga_clear(struct pipe_context *pipe,
 417                 unsigned buffers,
 418                 const union pipe_color_union *color,
 419                 double depth,
 420                 unsigned stencil);
 421
 422
 423 /***********************************************************************
 424  * svga_screen_texture.c:
 425  */
 426 void svga_mark_surfaces_dirty(struct svga_context *svga);
 427
 428
 429
 430
 431 void svga_init_state_functions( struct svga_context *svga );
 432 void svga_init_flush_functions( struct svga_context *svga );
 433 void svga_init_string_functions( struct svga_context *svga );
 434 void svga_init_blit_functions(struct svga_context *svga);
 435
 436 void svga_init_blend_functions( struct svga_context *svga );
 437 void svga_init_depth_stencil_functions( struct svga_context *svga );
 438 void svga_init_misc_functions( struct svga_context *svga );
 439 void svga_init_rasterizer_functions( struct svga_context *svga );
 440 void svga_init_sampler_functions( struct svga_context *svga );
 441 void svga_init_fs_functions( struct svga_context *svga );
 442 void svga_init_vs_functions( struct svga_context *svga );
 443 void svga_init_vertex_functions( struct svga_context *svga );
 444 void svga_init_constbuffer_functions( struct svga_context *svga );
 445 void svga_init_draw_functions( struct svga_context *svga );
 446 void svga_init_query_functions( struct svga_context *svga );
 447 void svga_init_surface_functions(struct svga_context *svga);
 448
 449 void svga_cleanup_vertex_state( struct svga_context *svga );
 450 void svga_cleanup_tss_binding( struct svga_context *svga );
 451 void svga_cleanup_framebuffer( struct svga_context *svga );
 452
 453 void svga_context_flush( struct svga_context *svga,
 454                          struct pipe_fence_handle **pfence );
 455
 456 void svga_hwtnl_flush_retry( struct svga_context *svga );
 457
 458 void svga_surfaces_flush(struct svga_context *svga);
 459
 460 struct pipe_context *
 461 svga_context_create(struct pipe_screen *screen,
 462                     void *priv);
 463
 464
 465 /***********************************************************************
 466  * Inline conversion functions.  These are better-typed than the
 467  * macros used previously:
 468  */
 469 static INLINE struct svga_context *
 470 svga_context( struct pipe_context *pipe )
 471 {
 472    return (struct svga_context *)pipe;
 473 }
 474
 475
 476
 477 #endif