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