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_hw_reg.h"
  40 #include "svga3d_shaderdefs.h"
  41
  42
  43 #define SVGA_TEX_UNITS 8
  44 #define SVGA_MAX_POINTSIZE 80.0
  45
  46 struct draw_vertex_shader;
  47 struct svga_shader_result;
  48 struct SVGACmdMemory;
  49 struct util_bitmask;
  50 struct u_upload_mgr;
  51
  52
  53 struct svga_shader
  54 {
  55    const struct tgsi_token *tokens;
  56
  57    struct tgsi_shader_info info;
  58
  59    struct svga_shader_result *results;
  60
  61    unsigned id;
  62
  63    boolean use_sm30;
  64 };
  65
  66 struct svga_fragment_shader
  67 {
  68    struct svga_shader base;
  69 };
  70
  71 struct svga_vertex_shader
  72 {
  73    struct svga_shader base;
  74
  75    struct draw_vertex_shader *draw_shader;
  76 };
  77
  78
  79 struct svga_cache_context;
  80 struct svga_tracked_state;
  81
  82 struct svga_blend_state {
  83
  84    boolean need_white_fragments;
  85
  86    /* Should be per-render-target:
  87     */
  88    struct {
  89       uint8_t writemask;
  90
  91       boolean blend_enable;
  92       uint8_t srcblend;
  93       uint8_t dstblend;
  94       uint8_t blendeq;
  95
  96       boolean separate_alpha_blend_enable;
  97       uint8_t srcblend_alpha;
  98       uint8_t dstblend_alpha;
  99       uint8_t blendeq_alpha;
 100
 101    } rt[1];
 102 };
 103
 104 struct svga_depth_stencil_state {
 105    unsigned zfunc:8;
 106    unsigned zenable:1;
 107    unsigned zwriteenable:1;
 108
 109    unsigned alphatestenable:1;
 110    unsigned alphafunc:8;
 111
 112    struct {
 113       unsigned enabled:1;
 114       unsigned func:8;
 115       unsigned fail:8;
 116       unsigned zfail:8;
 117       unsigned pass:8;
 118    } stencil[2];
 119
 120    /* SVGA3D has one ref/mask/writemask triple shared between front &
 121     * back face stencil.  We really need two:
 122     */
 123    unsigned stencil_mask:8;
 124    unsigned stencil_writemask:8;
 125
 126    float    alpharef;
 127 };
 128
 129 #define SVGA_UNFILLED_DISABLE 0
 130 #define SVGA_UNFILLED_LINE    1
 131 #define SVGA_UNFILLED_POINT   2
 132
 133 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 134 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 135 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 136
 137 struct svga_rasterizer_state {
 138    struct pipe_rasterizer_state templ; /* needed for draw module */
 139
 140    unsigned shademode:8;
 141    unsigned cullmode:8;
 142    unsigned scissortestenable:1;
 143    unsigned multisampleantialias:1;
 144    unsigned antialiasedlineenable:1;
 145    unsigned lastpixel:1;
 146    unsigned pointsprite:1;
 147
 148    unsigned linepattern;
 149
 150    float slopescaledepthbias;
 151    float depthbias;
 152    float pointsize;
 153
 154    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 155
 156    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 157    unsigned need_pipeline:16;
 158
 159    /** For debugging: */
 160    const char* need_pipeline_tris_str;
 161    const char* need_pipeline_lines_str;
 162    const char* need_pipeline_points_str;
 163 };
 164
 165 struct svga_sampler_state {
 166    unsigned mipfilter;
 167    unsigned magfilter;
 168    unsigned minfilter;
 169    unsigned aniso_level;
 170    float lod_bias;
 171    unsigned addressu;
 172    unsigned addressv;
 173    unsigned addressw;
 174    unsigned bordercolor;
 175    unsigned normalized_coords:1;
 176    unsigned compare_mode:1;
 177    unsigned compare_func:3;
 178
 179    unsigned min_lod;
 180    unsigned view_min_lod;
 181    unsigned view_max_lod;
 182 };
 183
 184 struct svga_velems_state {
 185    unsigned count;
 186    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 187 };
 188
 189 /* Use to calculate differences between state emitted to hardware and
 190  * current driver-calculated state.
 191  */
 192 struct svga_state
 193 {
 194    const struct svga_blend_state *blend;
 195    const struct svga_depth_stencil_state *depth;
 196    const struct svga_rasterizer_state *rast;
 197    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 198    const struct svga_velems_state *velems;
 199
 200    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 201    struct svga_fragment_shader *fs;
 202    struct svga_vertex_shader *vs;
 203
 204    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 205    struct pipe_index_buffer ib;
 206    struct pipe_resource *cb[PIPE_SHADER_TYPES];
 207
 208    struct pipe_framebuffer_state framebuffer;
 209    float depthscale;
 210
 211    /* Hack to limit the number of different render targets between
 212     * flushes.  Helps avoid blowing out our surface cache in EXA.
 213     */
 214    int nr_fbs;
 215
 216    struct pipe_poly_stipple poly_stipple;
 217    struct pipe_scissor_state scissor;
 218    struct pipe_blend_color blend_color;
 219    struct pipe_stencil_ref stencil_ref;
 220    struct pipe_clip_state clip;
 221    struct pipe_viewport_state viewport;
 222
 223    unsigned num_samplers;
 224    unsigned num_sampler_views;
 225    unsigned num_vertex_buffers;
 226    unsigned reduced_prim;
 227
 228    struct {
 229       unsigned flag_1d;
 230       unsigned flag_srgb;
 231    } tex_flags;
 232
 233    boolean any_user_vertex_buffers;
 234
 235    unsigned zero_stride_vertex_elements;
 236    unsigned num_zero_stride_vertex_elements;
 237    /* ### maybe dynamically allocate this */
 238    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 239 };
 240
 241 struct svga_prescale {
 242    float translate[4];
 243    float scale[4];
 244    boolean enabled;
 245 };
 246
 247
 248 /* Updated by calling svga_update_state( SVGA_STATE_HW_CLEAR )
 249  */
 250 struct svga_hw_clear_state
 251 {
 252    struct {
 253       unsigned x,y,w,h;
 254    } viewport;
 255
 256    struct {
 257       float zmin, zmax;
 258    } depthrange;
 259
 260    struct pipe_framebuffer_state framebuffer;
 261    struct svga_prescale prescale;
 262 };
 263
 264 struct svga_hw_view_state
 265 {
 266    struct pipe_resource *texture;
 267    struct svga_sampler_view *v;
 268    unsigned min_lod;
 269    unsigned max_lod;
 270    int dirty;
 271 };
 272
 273 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 274  */
 275 struct svga_hw_draw_state
 276 {
 277    unsigned rs[SVGA3D_RS_MAX];
 278    unsigned ts[SVGA3D_PIXEL_SAMPLERREG_MAX][SVGA3D_TS_MAX];
 279    float cb[PIPE_SHADER_TYPES][SVGA3D_CONSTREG_MAX][4];
 280
 281    struct svga_shader_result *fs;
 282    struct svga_shader_result *vs;
 283    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 284
 285    unsigned num_views;
 286 };
 287
 288
 289 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 290  */
 291 struct svga_sw_state
 292 {
 293    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 294
 295    /* which parts we need */
 296    boolean need_swvfetch;
 297    boolean need_pipeline;
 298    boolean need_swtnl;
 299
 300    /* Flag to make sure that need sw is on while
 301     * updating state within a swtnl call.
 302     */
 303    boolean in_swtnl_draw;
 304 };
 305
 306
 307 /* Queue some state updates (like rss) and submit them to hardware in
 308  * a single packet.
 309  */
 310 struct svga_hw_queue;
 311
 312 struct svga_query;
 313
 314 struct svga_context
 315 {
 316    struct pipe_context pipe;
 317    struct svga_winsys_context *swc;
 318
 319    struct {
 320       boolean no_swtnl;
 321       boolean force_swtnl;
 322       boolean use_min_mipmap;
 323
 324       /* incremented for each shader */
 325       unsigned shader_id;
 326
 327       unsigned disable_shader;
 328
 329       boolean no_line_width;
 330       boolean force_hw_line_stipple;
 331    } debug;
 332
 333    struct {
 334       struct draw_context *draw;
 335       struct vbuf_render *backend;
 336       unsigned hw_prim;
 337       boolean new_vbuf;
 338       boolean new_vdecl;
 339    } swtnl;
 340
 341    /* Bitmask of used shader IDs */
 342    struct util_bitmask *fs_bm;
 343    struct util_bitmask *vs_bm;
 344
 345    struct {
 346       unsigned dirty[SVGA_STATE_MAX];
 347
 348       unsigned texture_timestamp;
 349
 350       /*
 351        */
 352       struct svga_sw_state          sw;
 353       struct svga_hw_draw_state     hw_draw;
 354       struct svga_hw_clear_state    hw_clear;
 355    } state;
 356
 357    struct svga_state curr;      /* state from the state tracker */
 358    unsigned dirty;              /* statechanges since last update_state() */
 359
 360    struct {
 361       unsigned rendertargets:1;
 362       unsigned texture_samplers:1;
 363    } rebind;
 364
 365    struct u_upload_mgr *upload_ib;
 366    struct u_upload_mgr *upload_vb;
 367    struct svga_hwtnl *hwtnl;
 368
 369    /** The occlusion query currently in progress */
 370    struct svga_query *sq;
 371
 372    /** List of buffers with queued transfers */
 373    struct list_head dirty_buffers;
 374 };
 375
 376 /* A flag for each state_tracker state object:
 377  */
 378 #define SVGA_NEW_BLEND               0x1
 379 #define SVGA_NEW_DEPTH_STENCIL       0x2
 380 #define SVGA_NEW_RAST                0x4
 381 #define SVGA_NEW_SAMPLER             0x8
 382 #define SVGA_NEW_TEXTURE             0x10
 383 #define SVGA_NEW_VBUFFER             0x20
 384 #define SVGA_NEW_VELEMENT            0x40
 385 #define SVGA_NEW_FS                  0x80
 386 #define SVGA_NEW_VS                  0x100
 387 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 388 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 389 #define SVGA_NEW_FRAME_BUFFER        0x800
 390 #define SVGA_NEW_STIPPLE             0x1000
 391 #define SVGA_NEW_SCISSOR             0x2000
 392 #define SVGA_NEW_BLEND_COLOR         0x4000
 393 #define SVGA_NEW_CLIP                0x8000
 394 #define SVGA_NEW_VIEWPORT            0x10000
 395 #define SVGA_NEW_PRESCALE            0x20000
 396 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 397 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 398 #define SVGA_NEW_NEED_PIPELINE       0x100000
 399 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 400 #define SVGA_NEW_NEED_SWTNL          0x400000
 401 #define SVGA_NEW_FS_RESULT           0x800000
 402 #define SVGA_NEW_VS_RESULT           0x1000000
 403 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 404 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 405 #define SVGA_NEW_STENCIL_REF         0x8000000
 406
 407
 408
 409
 410
 411 /***********************************************************************
 412  * svga_clear.c:
 413  */
 414 void svga_clear(struct pipe_context *pipe,
 415                 unsigned buffers,
 416                 const union pipe_color_union *color,
 417                 double depth,
 418                 unsigned stencil);
 419
 420
 421 /***********************************************************************
 422  * svga_screen_texture.c:
 423  */
 424 void svga_mark_surfaces_dirty(struct svga_context *svga);
 425
 426
 427
 428
 429 void svga_init_state_functions( struct svga_context *svga );
 430 void svga_init_flush_functions( struct svga_context *svga );
 431 void svga_init_string_functions( struct svga_context *svga );
 432 void svga_init_blit_functions(struct svga_context *svga);
 433
 434 void svga_init_blend_functions( struct svga_context *svga );
 435 void svga_init_depth_stencil_functions( struct svga_context *svga );
 436 void svga_init_misc_functions( struct svga_context *svga );
 437 void svga_init_rasterizer_functions( struct svga_context *svga );
 438 void svga_init_sampler_functions( struct svga_context *svga );
 439 void svga_init_fs_functions( struct svga_context *svga );
 440 void svga_init_vs_functions( struct svga_context *svga );
 441 void svga_init_vertex_functions( struct svga_context *svga );
 442 void svga_init_constbuffer_functions( struct svga_context *svga );
 443 void svga_init_draw_functions( struct svga_context *svga );
 444 void svga_init_query_functions( struct svga_context *svga );
 445 void svga_init_surface_functions(struct svga_context *svga);
 446
 447 void svga_cleanup_vertex_state( struct svga_context *svga );
 448 void svga_cleanup_tss_binding( struct svga_context *svga );
 449 void svga_cleanup_framebuffer( struct svga_context *svga );
 450
 451 void svga_context_flush( struct svga_context *svga,
 452                          struct pipe_fence_handle **pfence );
 453
 454 void svga_hwtnl_flush_retry( struct svga_context *svga );
 455 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 456                               struct pipe_resource *buffer );
 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