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    unsigned need_pipeline:16;    /* which prims do we need help for? */
 151 };
 152
 153 struct svga_sampler_state {
 154    unsigned mipfilter;
 155    unsigned magfilter;
 156    unsigned minfilter;
 157    unsigned aniso_level;
 158    float lod_bias;
 159    unsigned addressu;
 160    unsigned addressv;
 161    unsigned addressw;
 162    unsigned bordercolor;
 163    unsigned normalized_coords:1;
 164    unsigned compare_mode:1;
 165    unsigned compare_func:3;
 166
 167    unsigned min_lod;
 168    unsigned view_min_lod;
 169    unsigned view_max_lod;
 170 };
 171
 172 struct svga_velems_state {
 173    unsigned count;
 174    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 175 };
 176
 177 /* Use to calculate differences between state emitted to hardware and
 178  * current driver-calculated state.
 179  */
 180 struct svga_state
 181 {
 182    const struct svga_blend_state *blend;
 183    const struct svga_depth_stencil_state *depth;
 184    const struct svga_rasterizer_state *rast;
 185    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 186    const struct svga_velems_state *velems;
 187
 188    struct pipe_texture *texture[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 189    struct svga_fragment_shader *fs;
 190    struct svga_vertex_shader *vs;
 191
 192    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 193    struct pipe_buffer *cb[PIPE_SHADER_TYPES];
 194
 195    struct pipe_framebuffer_state framebuffer;
 196    float depthscale;
 197
 198    /* Hack to limit the number of different render targets between
 199     * flushes.  Helps avoid blowing out our surface cache in EXA.
 200     */
 201    int nr_fbs;
 202
 203    struct pipe_poly_stipple poly_stipple;
 204    struct pipe_scissor_state scissor;
 205    struct pipe_blend_color blend_color;
 206    struct pipe_stencil_ref stencil_ref;
 207    struct pipe_clip_state clip;
 208    struct pipe_viewport_state viewport;
 209
 210    unsigned num_samplers;
 211    unsigned num_textures;
 212    unsigned num_vertex_buffers;
 213    unsigned reduced_prim;
 214
 215    struct {
 216       unsigned flag_1d;
 217       unsigned flag_srgb;
 218    } tex_flags;
 219
 220    boolean any_user_vertex_buffers;
 221
 222    unsigned zero_stride_vertex_elements;
 223    unsigned num_zero_stride_vertex_elements;
 224    /* ### maybe dynamically allocate this */
 225    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 226 };
 227
 228 #define RS_MAX 97
 229 #define TS_MAX 30
 230 #define CB_MAX 256
 231
 232 struct svga_prescale {
 233    float translate[4];
 234    float scale[4];
 235    boolean enabled;
 236 };
 237
 238
 239 /* Updated by calling svga_update_state( SVGA_STATE_HW_VIEWPORT )
 240  */
 241 struct svga_hw_clear_state
 242 {
 243    struct {
 244       unsigned x,y,w,h;
 245    } viewport;
 246
 247    struct {
 248       float zmin, zmax;
 249    } depthrange;
 250
 251    struct pipe_framebuffer_state framebuffer;
 252    struct svga_prescale prescale;
 253 };
 254
 255 struct svga_hw_view_state
 256 {
 257    struct pipe_texture *texture;
 258    struct svga_sampler_view *v;
 259    unsigned min_lod;
 260    unsigned max_lod;
 261    int dirty;
 262 };
 263
 264 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 265  */
 266 struct svga_hw_draw_state
 267 {
 268    unsigned rs[RS_MAX];
 269    unsigned ts[16][TS_MAX];
 270    float cb[PIPE_SHADER_TYPES][CB_MAX][4];
 271
 272    struct svga_shader_result *fs;
 273    struct svga_shader_result *vs;
 274    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 275
 276    unsigned num_views;
 277 };
 278
 279
 280 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 281  */
 282 struct svga_sw_state
 283 {
 284    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 285
 286    /* which parts we need */
 287    boolean need_swvfetch;
 288    boolean need_pipeline;
 289    boolean need_swtnl;
 290 };
 291
 292
 293 /* Queue some state updates (like rss) and submit them to hardware in
 294  * a single packet.
 295  */
 296 struct svga_hw_queue;
 297
 298 struct svga_query;
 299
 300 struct svga_context
 301 {
 302    struct pipe_context pipe;
 303    struct svga_winsys_context *swc;
 304
 305    struct {
 306       boolean no_swtnl;
 307       boolean force_swtnl;
 308       boolean use_min_mipmap;
 309
 310       /* incremented for each shader */
 311       unsigned shader_id;
 312
 313       unsigned disable_shader;
 314    } debug;
 315
 316    struct {
 317       struct draw_context *draw;
 318       struct vbuf_render *backend;
 319       unsigned hw_prim;
 320       boolean new_vbuf;
 321       boolean new_vdecl;
 322    } swtnl;
 323
 324    /* Bitmask of used shader IDs */
 325    struct util_bitmask *fs_bm;
 326    struct util_bitmask *vs_bm;
 327
 328    struct {
 329       unsigned dirty[4];
 330
 331       unsigned texture_timestamp;
 332
 333       /*
 334        */
 335       struct svga_sw_state          sw;
 336       struct svga_hw_draw_state     hw_draw;
 337       struct svga_hw_clear_state    hw_clear;
 338    } state;
 339
 340    struct svga_state curr;      /* state from the state tracker */
 341    unsigned dirty;              /* statechanges since last update_state() */
 342
 343    struct u_upload_mgr *upload_ib;
 344    struct u_upload_mgr *upload_vb;
 345    struct svga_hwtnl *hwtnl;
 346
 347    /** The occlusion query currently in progress */
 348    struct svga_query *sq;
 349
 350    /** List of buffers with queued transfers */
 351    struct list_head dirty_buffers;
 352 };
 353
 354 /* A flag for each state_tracker state object:
 355  */
 356 #define SVGA_NEW_BLEND               0x1
 357 #define SVGA_NEW_DEPTH_STENCIL       0x2
 358 #define SVGA_NEW_RAST                0x4
 359 #define SVGA_NEW_SAMPLER             0x8
 360 #define SVGA_NEW_TEXTURE             0x10
 361 #define SVGA_NEW_VBUFFER             0x20
 362 #define SVGA_NEW_VELEMENT            0x40
 363 #define SVGA_NEW_FS                  0x80
 364 #define SVGA_NEW_VS                  0x100
 365 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 366 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 367 #define SVGA_NEW_FRAME_BUFFER        0x800
 368 #define SVGA_NEW_STIPPLE             0x1000
 369 #define SVGA_NEW_SCISSOR             0x2000
 370 #define SVGA_NEW_BLEND_COLOR         0x4000
 371 #define SVGA_NEW_CLIP                0x8000
 372 #define SVGA_NEW_VIEWPORT            0x10000
 373 #define SVGA_NEW_PRESCALE            0x20000
 374 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 375 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 376 #define SVGA_NEW_NEED_PIPELINE       0x100000
 377 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 378 #define SVGA_NEW_NEED_SWTNL          0x400000
 379 #define SVGA_NEW_FS_RESULT           0x800000
 380 #define SVGA_NEW_VS_RESULT           0x1000000
 381 #define SVGA_NEW_ZERO_STRIDE         0x2000000
 382 #define SVGA_NEW_TEXTURE_FLAGS       0x4000000
 383 #define SVGA_NEW_STENCIL_REF         0x8000000
 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 struct pipe_context *
 434 svga_context_create(struct pipe_screen *screen,
 435                     void *priv);
 436
 437
 438 /***********************************************************************
 439  * Inline conversion functions.  These are better-typed than the
 440  * macros used previously:
 441  */
 442 static INLINE struct svga_context *
 443 svga_context( struct pipe_context *pipe )
 444 {
 445    return (struct svga_context *)pipe;
 446 }
 447
 448
 449
 450 #endif