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 u_upload_mgr;
  45
  46
  47 struct svga_shader
  48 {
  49    const struct tgsi_token *tokens;
  50
  51    struct tgsi_shader_info info;
  52
  53    struct svga_shader_result *results;
  54
  55    unsigned id;
  56
  57    boolean use_sm30;
  58 };
  59
  60 struct svga_fragment_shader
  61 {
  62    struct svga_shader base;
  63 };
  64
  65 struct svga_vertex_shader
  66 {
  67    struct svga_shader base;
  68
  69    struct draw_vertex_shader *draw_shader;
  70 };
  71
  72
  73 struct svga_cache_context;
  74 struct svga_tracked_state;
  75
  76 struct svga_blend_state {
  77
  78    boolean need_white_fragments;
  79
  80    /* Should be per-render-target:
  81     */
  82    struct {
  83       uint8_t writemask;
  84
  85       boolean blend_enable;
  86       uint8_t srcblend;
  87       uint8_t dstblend;
  88       uint8_t blendeq;
  89
  90       boolean separate_alpha_blend_enable;
  91       uint8_t srcblend_alpha;
  92       uint8_t dstblend_alpha;
  93       uint8_t blendeq_alpha;
  94
  95    } rt[1];
  96 };
  97
  98 struct svga_depth_stencil_state {
  99    unsigned zfunc:8;
 100    unsigned zenable:1;
 101    unsigned zwriteenable:1;
 102
 103    unsigned alphatestenable:1;
 104    unsigned alphafunc:8;
 105
 106    struct {
 107       unsigned enabled:1;
 108       unsigned func:8;
 109       unsigned fail:8;
 110       unsigned zfail:8;
 111       unsigned pass:8;
 112    } stencil[2];
 113
 114    /* SVGA3D has one ref/mask/writemask triple shared between front &
 115     * back face stencil.  We really need two:
 116     */
 117    unsigned stencil_ref:8;
 118    unsigned stencil_mask:8;
 119    unsigned stencil_writemask:8;
 120
 121    float    alpharef;
 122 };
 123
 124 #define SVGA_UNFILLED_DISABLE 0
 125 #define SVGA_UNFILLED_LINE    1
 126 #define SVGA_UNFILLED_POINT   2
 127
 128 #define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
 129 #define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
 130 #define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
 131
 132 struct svga_rasterizer_state {
 133    struct pipe_rasterizer_state templ; /* needed for draw module */
 134
 135    unsigned shademode:8;
 136    unsigned cullmode:8;
 137    unsigned scissortestenable:1;
 138    unsigned multisampleantialias:1;
 139    unsigned antialiasedlineenable:1;
 140    unsigned lastpixel:1;
 141
 142    unsigned linepattern;
 143
 144    float slopescaledepthbias;
 145    float depthbias;
 146    float pointsize;
 147    float pointsize_min;
 148    float pointsize_max;
 149
 150    unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
 151    unsigned need_pipeline:16;    /* which prims do we need help for? */
 152 };
 153
 154 struct svga_sampler_state {
 155    unsigned mipfilter;
 156    unsigned magfilter;
 157    unsigned minfilter;
 158    unsigned aniso_level;
 159    float lod_bias;
 160    unsigned addressu;
 161    unsigned addressv;
 162    unsigned addressw;
 163    unsigned bordercolor;
 164    unsigned normalized_coords:1;
 165    unsigned compare_mode:1;
 166    unsigned compare_func:3;
 167
 168    unsigned min_lod;
 169    unsigned view_min_lod;
 170    unsigned view_max_lod;
 171 };
 172
 173 /* Use to calculate differences between state emitted to hardware and
 174  * current driver-calculated state.
 175  */
 176 struct svga_state
 177 {
 178    const struct svga_blend_state *blend;
 179    const struct svga_depth_stencil_state *depth;
 180    const struct svga_rasterizer_state *rast;
 181    const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 182
 183    struct pipe_texture *texture[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
 184    struct svga_fragment_shader *fs;
 185    struct svga_vertex_shader *vs;
 186
 187    struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 188    struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS];
 189    struct pipe_buffer *cb[PIPE_SHADER_TYPES];
 190
 191    struct pipe_framebuffer_state framebuffer;
 192    float depthscale;
 193
 194    /* Hack to limit the number of different render targets between
 195     * flushes.  Helps avoid blowing out our surface cache in EXA.
 196     */
 197    int nr_fbs;
 198
 199    struct pipe_poly_stipple poly_stipple;
 200    struct pipe_scissor_state scissor;
 201    struct pipe_blend_color blend_color;
 202    struct pipe_clip_state clip;
 203    struct pipe_viewport_state viewport;
 204
 205    const unsigned *edgeflags;
 206
 207    unsigned num_samplers;
 208    unsigned num_textures;
 209    unsigned num_vertex_elements;
 210    unsigned num_vertex_buffers;
 211    unsigned reduced_prim;
 212
 213    struct {
 214       unsigned flag_1d;
 215       unsigned flag_srgb;
 216    } tex_flags;
 217
 218    boolean any_user_vertex_buffers;
 219
 220    unsigned zero_stride_vertex_elements;
 221    unsigned num_zero_stride_vertex_elements;
 222    /* ### maybe dynamically allocate this */
 223    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 224 };
 225
 226 #define RS_MAX 97
 227 #define TS_MAX 30
 228 #define CB_MAX 256
 229
 230 struct svga_prescale {
 231    float translate[4];
 232    float scale[4];
 233    boolean enabled;
 234 };
 235
 236
 237 /* Updated by calling svga_update_state( SVGA_STATE_HW_VIEWPORT )
 238  */
 239 struct svga_hw_clear_state
 240 {
 241    struct {
 242       unsigned x,y,w,h;
 243    } viewport;
 244
 245    struct {
 246       float zmin, zmax;
 247    } depthrange;
 248
 249    struct pipe_framebuffer_state framebuffer;
 250    struct svga_prescale prescale;
 251 };
 252
 253 struct svga_hw_view_state
 254 {
 255    struct pipe_texture *texture;
 256    struct svga_sampler_view *v;
 257    unsigned min_lod;
 258    unsigned max_lod;
 259    int dirty;
 260 };
 261
 262 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 263  */
 264 struct svga_hw_draw_state
 265 {
 266    unsigned rs[RS_MAX];
 267    unsigned ts[16][TS_MAX];
 268    float cb[PIPE_SHADER_TYPES][CB_MAX][4];
 269
 270    unsigned shader_id[PIPE_SHADER_TYPES];
 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    struct {
 325       unsigned dirty[4];
 326
 327       unsigned texture_timestamp;
 328       unsigned next_fs_id;
 329       unsigned next_vs_id;
 330
 331       /* Internally generated shaders:
 332        */
 333       unsigned white_fs_id;
 334
 335       /*
 336        */
 337       struct svga_sw_state          sw;
 338       struct svga_hw_draw_state     hw_draw;
 339       struct svga_hw_clear_state    hw_clear;
 340    } state;
 341
 342    struct svga_state curr;      /* state from the state tracker */
 343    unsigned dirty;              /* statechanges since last update_state() */
 344
 345    struct u_upload_mgr *upload_ib;
 346    struct u_upload_mgr *upload_vb;
 347    struct svga_hwtnl *hwtnl;
 348
 349    /** The occlusion query currently in progress */
 350    struct svga_query *sq;
 351
 352    /** List of buffers with queued transfers */
 353    struct list_head dirty_buffers;
 354 };
 355
 356 /* A flag for each state_tracker state object:
 357  */
 358 #define SVGA_NEW_BLEND               0x1
 359 #define SVGA_NEW_DEPTH_STENCIL       0x2
 360 #define SVGA_NEW_RAST                0x4
 361 #define SVGA_NEW_SAMPLER             0x8
 362 #define SVGA_NEW_TEXTURE             0x10
 363 #define SVGA_NEW_VBUFFER             0x20
 364 #define SVGA_NEW_VELEMENT            0x40
 365 #define SVGA_NEW_FS                  0x80
 366 #define SVGA_NEW_VS                  0x100
 367 #define SVGA_NEW_FS_CONST_BUFFER     0x200
 368 #define SVGA_NEW_VS_CONST_BUFFER     0x400
 369 #define SVGA_NEW_FRAME_BUFFER        0x800
 370 #define SVGA_NEW_STIPPLE             0x1000
 371 #define SVGA_NEW_SCISSOR             0x2000
 372 #define SVGA_NEW_BLEND_COLOR         0x4000
 373 #define SVGA_NEW_CLIP                0x8000
 374 #define SVGA_NEW_VIEWPORT            0x10000
 375 #define SVGA_NEW_PRESCALE            0x20000
 376 #define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
 377 #define SVGA_NEW_TEXTURE_BINDING     0x80000
 378 #define SVGA_NEW_NEED_PIPELINE       0x100000
 379 #define SVGA_NEW_NEED_SWVFETCH       0x200000
 380 #define SVGA_NEW_NEED_SWTNL          0x400000
 381 #define SVGA_NEW_FS_RESULT           0x800000
 382 #define SVGA_NEW_VS_RESULT           0x1000000
 383 #define SVGA_NEW_EDGEFLAGS           0x2000000
 384 #define SVGA_NEW_ZERO_STRIDE         0x4000000
 385 #define SVGA_NEW_TEXTURE_FLAGS       0x8000000
 386
 387
 388
 389
 390
 391 /***********************************************************************
 392  * svga_clear.c:
 393  */
 394 void svga_clear(struct pipe_context *pipe,
 395                 unsigned buffers,
 396                 const float *rgba,
 397                 double depth,
 398                 unsigned stencil);
 399
 400
 401 /***********************************************************************
 402  * svga_screen_texture.c:
 403  */
 404 void svga_mark_surfaces_dirty(struct svga_context *svga);
 405
 406
 407
 408
 409 void svga_init_state_functions( struct svga_context *svga );
 410 void svga_init_flush_functions( struct svga_context *svga );
 411 void svga_init_string_functions( struct svga_context *svga );
 412 void svga_init_blit_functions(struct svga_context *svga);
 413
 414 void svga_init_blend_functions( struct svga_context *svga );
 415 void svga_init_depth_stencil_functions( struct svga_context *svga );
 416 void svga_init_misc_functions( struct svga_context *svga );
 417 void svga_init_rasterizer_functions( struct svga_context *svga );
 418 void svga_init_sampler_functions( struct svga_context *svga );
 419 void svga_init_fs_functions( struct svga_context *svga );
 420 void svga_init_vs_functions( struct svga_context *svga );
 421 void svga_init_vertex_functions( struct svga_context *svga );
 422 void svga_init_constbuffer_functions( struct svga_context *svga );
 423 void svga_init_draw_functions( struct svga_context *svga );
 424 void svga_init_query_functions( struct svga_context *svga );
 425
 426 void svga_cleanup_vertex_state( struct svga_context *svga );
 427 void svga_cleanup_tss_binding( struct svga_context *svga );
 428 void svga_cleanup_framebuffer( struct svga_context *svga );
 429
 430 void svga_context_flush( struct svga_context *svga,
 431                          struct pipe_fence_handle **pfence );
 432
 433 void svga_hwtnl_flush_retry( struct svga_context *svga );
 434
 435
 436 /***********************************************************************
 437  * Inline conversion functions.  These are better-typed than the
 438  * macros used previously:
 439  */
 440 static INLINE struct svga_context *
 441 svga_context( struct pipe_context *pipe )
 442 {
 443    return (struct svga_context *)pipe;
 444 }
 445
 446
 447
 448 #endif