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
  39 #define SVGA_TEX_UNITS 8
  40 #define SVGA_MAX_POINTSIZE 80.0
  41
  42 struct draw_vertex_shader;
  43 struct svga_shader_result;
  44 struct SVGACmdMemory;
  45 struct util_bitmask;
  46 struct u_upload_mgr;
  47
  48
  49 struct svga_shader
  50 {
  51    const struct tgsi_token *tokens;
  52
  53    struct tgsi_shader_info info;
  54
  55    struct svga_shader_result *results;
  56
  57    unsigned id;
  58
  59    boolean use_sm30;
  60 };
  61
  62 struct svga_fragment_shader
  63 {
  64    struct svga_shader base;
  65 };
  66
  67 struct svga_vertex_shader
  68 {
  69    struct svga_shader base;
  70
  71    struct draw_vertex_shader *draw_shader;
  72 };
  73
  74
  75 struct svga_cache_context;
  76 struct svga_tracked_state;
  77
  78 struct svga_blend_state {
  79
  80    boolean need_white_fragments;
  81
  82    /* Should be per-render-target:
  83     */
  84    struct {
  85       uint8_t writemask;
  86
  87       boolean blend_enable;
  88       uint8_t srcblend;
  89       uint8_t dstblend;
  90       uint8_t blendeq;
  91
  92       boolean separate_alpha_blend_enable;
  93       uint8_t srcblend_alpha;
  94       uint8_t dstblend_alpha;
  95       uint8_t blendeq_alpha;
  96
  97    } rt[1];
  98 };
  99
 100 struct svga_depth_stencil_state {
 101    unsigned zfunc:8;
 102    unsigned zenable:1;
 103    unsigned zwriteenable:1;
 104
 105    unsigned alphatestenable:1;
 106    unsigned alphafunc:8;
 107
 108    struct {
 109       unsigned enabled:1;
 110       unsigned func:8;
 111       unsigned fail:8;
 112       unsigned zfail:8;
 113       unsigned pass:8;
 114    } stencil[2];
 115
 116    /* SVGA3D has one ref/mask/writemask triple shared between front &
 117     * back face stencil.  We really need two:
 118     */
 119    unsigned stencil_mask:8;
 120    unsigned stencil_writemask:8;
 121
 122    float    alpharef;
 123 };
 124
 125 #define SVGA_UNFILLED_DISABLE 0
 126 #define SVGA_UNFILLED_LINE    1
 127 #define SVGA_UNFILLED_POINT   2
 128
 129 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 130 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 131 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 132
 133 struct svga_rasterizer_state {
 134    struct pipe_rasterizer_state templ; /* needed for draw module */
 135
 136    unsigned shademode:8;
 137    unsigned cullmode:8;
 138    unsigned scissortestenable:1;
 139    unsigned multisampleantialias:1;
 140    unsigned antialiasedlineenable:1;
 141    unsigned lastpixel:1;
 142
 143    unsigned linepattern;
 144
 145    float slopescaledepthbias;
 146    float depthbias;
 147    float pointsize;
 148
 149    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 150
 151    /** Which prims do we need help for?  Bitmask of (1 << PIPE_PRIM_x) flags */
 152    unsigned need_pipeline:16;
 153
 154    /** For debugging: */
 155    const char* need_pipeline_tris_str;
 156    const char* need_pipeline_lines_str;
 157    const char* need_pipeline_points_str;
 158 };
 159
 160 struct svga_sampler_state {
 161    unsigned mipfilter;
 162    unsigned magfilter;
 163    unsigned minfilter;
 164    unsigned aniso_level;
 165    float lod_bias;
 166    unsigned addressu;
 167    unsigned addressv;
 168    unsigned addressw;
 169    unsigned bordercolor;
 170    unsigned normalized_coords:1;
 171    unsigned compare_mode:1;
 172    unsigned compare_func:3;
 173
 174    unsigned min_lod;
 175    unsigned view_min_lod;
 176    unsigned view_max_lod;
 177 };
 178
 179 struct svga_velems_state {
 180    unsigned count;
 181    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 182 };
 183
 184 /* Use to calculate differences between state emitted to hardware and
 185  * current driver-calculated state.
 186  */
 187 struct svga_state
 188 {
 189    const struct svga_blend_state *blend;
 190    const struct svga_depth_stencil_state *depth;
 191    const struct svga_rasterizer_state *rast;
 192    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 193    const struct svga_velems_state *velems;
 194
 195    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 196    struct svga_fragment_shader *fs;
 197    struct svga_vertex_shader *vs;
 198
 199    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 200    struct pipe_index_buffer ib;
 201    struct pipe_resource *cb[PIPE_SHADER_TYPES];
 202
 203    struct pipe_framebuffer_state framebuffer;
 204    float depthscale;
 205
 206    /* Hack to limit the number of different render targets between
 207     * flushes.  Helps avoid blowing out our surface cache in EXA.
 208     */
 209    int nr_fbs;
 210
 211    struct pipe_poly_stipple poly_stipple;
 212    struct pipe_scissor_state scissor;
 213    struct pipe_blend_color blend_color;
 214    struct pipe_stencil_ref stencil_ref;
 215    struct pipe_clip_state clip;
 216    struct pipe_viewport_state viewport;
 217
 218    unsigned num_samplers;
 219    unsigned num_sampler_views;
 220    unsigned num_vertex_buffers;
 221    unsigned reduced_prim;
 222
 223    struct {
 224       unsigned flag_1d;
 225       unsigned flag_srgb;
 226    } tex_flags;
 227
 228    boolean any_user_vertex_buffers;
 229
 230    unsigned zero_stride_vertex_elements;
 231    unsigned num_zero_stride_vertex_elements;
 232    /* ### maybe dynamically allocate this */
 233    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 234 };
 235
 236 #define RS_MAX 97
 237 #define TS_MAX 30
 238 #define CB_MAX 256
 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_VIEWPORT )
 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[RS_MAX];
 277    unsigned ts[16][TS_MAX];
 278    float cb[PIPE_SHADER_TYPES][CB_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[4];
 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 u_upload_mgr *upload_ib;
 360    struct u_upload_mgr *upload_vb;
 361    struct svga_hwtnl *hwtnl;
 362
 363    /** The occlusion query currently in progress */
 364    struct svga_query *sq;
 365
 366    /** List of buffers with queued transfers */
 367    struct list_head dirty_buffers;
 368 };
 369
 370 /* A flag for each state_tracker state object:
 371  */
 372 #define SVGA_NEW_BLEND               0x1
 373 #define SVGA_NEW_DEPTH_STENCIL       0x2
 374 #define SVGA_NEW_RAST                0x4
 375 #define SVGA_NEW_SAMPLER             0x8
 376 #define SVGA_NEW_TEXTURE             0x10
 377 #define SVGA_NEW_VBUFFER             0x20
 378 #define SVGA_NEW_VELEMENT            0x40
 379 #define SVGA_NEW_FS                  0x80
 380 #define SVGA_NEW_VS                  0x100
 381 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 382 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 383 #define SVGA_NEW_FRAME_BUFFER        0x800
 384 #define SVGA_NEW_STIPPLE             0x1000
 385 #define SVGA_NEW_SCISSOR             0x2000
 386 #define SVGA_NEW_BLEND_COLOR         0x4000
 387 #define SVGA_NEW_CLIP                0x8000
 388 #define SVGA_NEW_VIEWPORT            0x10000
 389 #define SVGA_NEW_PRESCALE            0x20000
 390 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 391 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 392 #define SVGA_NEW_NEED_PIPELINE       0x100000
 393 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 394 #define SVGA_NEW_NEED_SWTNL          0x400000
 395 #define SVGA_NEW_FS_RESULT           0x800000
 396 #define SVGA_NEW_VS_RESULT           0x1000000
 397 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 398 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 399 #define SVGA_NEW_STENCIL_REF         0x8000000
 400 #define SVGA_NEW_COMMAND_BUFFER      0x10000000
 401
 402
 403
 404
 405
 406 /***********************************************************************
 407  * svga_clear.c:
 408  */
 409 void svga_clear(struct pipe_context *pipe,
 410                 unsigned buffers,
 411                 const float *rgba,
 412                 double depth,
 413                 unsigned stencil);
 414
 415
 416 /***********************************************************************
 417  * svga_screen_texture.c:
 418  */
 419 void svga_mark_surfaces_dirty(struct svga_context *svga);
 420
 421
 422
 423
 424 void svga_init_state_functions( struct svga_context *svga );
 425 void svga_init_flush_functions( struct svga_context *svga );
 426 void svga_init_string_functions( struct svga_context *svga );
 427 void svga_init_blit_functions(struct svga_context *svga);
 428
 429 void svga_init_blend_functions( struct svga_context *svga );
 430 void svga_init_depth_stencil_functions( struct svga_context *svga );
 431 void svga_init_misc_functions( struct svga_context *svga );
 432 void svga_init_rasterizer_functions( struct svga_context *svga );
 433 void svga_init_sampler_functions( struct svga_context *svga );
 434 void svga_init_fs_functions( struct svga_context *svga );
 435 void svga_init_vs_functions( struct svga_context *svga );
 436 void svga_init_vertex_functions( struct svga_context *svga );
 437 void svga_init_constbuffer_functions( struct svga_context *svga );
 438 void svga_init_draw_functions( struct svga_context *svga );
 439 void svga_init_query_functions( struct svga_context *svga );
 440 void svga_init_surface_functions(struct svga_context *svga);
 441
 442 void svga_cleanup_vertex_state( struct svga_context *svga );
 443 void svga_cleanup_tss_binding( struct svga_context *svga );
 444 void svga_cleanup_framebuffer( struct svga_context *svga );
 445
 446 void svga_context_flush( struct svga_context *svga,
 447                          struct pipe_fence_handle **pfence );
 448
 449 void svga_hwtnl_flush_retry( struct svga_context *svga );
 450
 451 struct pipe_context *
 452 svga_context_create(struct pipe_screen *screen,
 453                     void *priv);
 454
 455
 456 /***********************************************************************
 457  * Inline conversion functions.  These are better-typed than the
 458  * macros used previously:
 459  */
 460 static INLINE struct svga_context *
 461 svga_context( struct pipe_context *pipe )
 462 {
 463    return (struct svga_context *)pipe;
 464 }
 465
 466
 467
 468 #endif