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    unsigned num_samplers;
 206    unsigned num_textures;
 207    unsigned num_vertex_elements;
 208    unsigned num_vertex_buffers;
 209    unsigned reduced_prim;
 210
 211    struct {
 212       unsigned flag_1d;
 213       unsigned flag_srgb;
 214    } tex_flags;
 215
 216    boolean any_user_vertex_buffers;
 217
 218    unsigned zero_stride_vertex_elements;
 219    unsigned num_zero_stride_vertex_elements;
 220    /* ### maybe dynamically allocate this */
 221    float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
 222 };
 223
 224 #define RS_MAX 97
 225 #define TS_MAX 30
 226 #define CB_MAX 256
 227
 228 struct svga_prescale {
 229    float translate[4];
 230    float scale[4];
 231    boolean enabled;
 232 };
 233
 234
 235 /* Updated by calling svga_update_state( SVGA_STATE_HW_VIEWPORT )
 236  */
 237 struct svga_hw_clear_state
 238 {
 239    struct {
 240       unsigned x,y,w,h;
 241    } viewport;
 242
 243    struct {
 244       float zmin, zmax;
 245    } depthrange;
 246
 247    struct pipe_framebuffer_state framebuffer;
 248    struct svga_prescale prescale;
 249 };
 250
 251 struct svga_hw_view_state
 252 {
 253    struct pipe_texture *texture;
 254    struct svga_sampler_view *v;
 255    unsigned min_lod;
 256    unsigned max_lod;
 257    int dirty;
 258 };
 259
 260 /* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
 261  */
 262 struct svga_hw_draw_state
 263 {
 264    unsigned rs[RS_MAX];
 265    unsigned ts[16][TS_MAX];
 266    float cb[PIPE_SHADER_TYPES][CB_MAX][4];
 267
 268    unsigned shader_id[PIPE_SHADER_TYPES];
 269
 270    struct svga_shader_result *fs;
 271    struct svga_shader_result *vs;
 272    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
 273
 274    unsigned num_views;
 275 };
 276
 277
 278 /* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
 279  */
 280 struct svga_sw_state
 281 {
 282    unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
 283
 284    /* which parts we need */
 285    boolean need_swvfetch;
 286    boolean need_pipeline;
 287    boolean need_swtnl;
 288 };
 289
 290
 291 /* Queue some state updates (like rss) and submit them to hardware in
 292  * a single packet.
 293  */
 294 struct svga_hw_queue;
 295
 296 struct svga_query;
 297
 298 struct svga_context
 299 {
 300    struct pipe_context pipe;
 301    struct svga_winsys_context *swc;
 302
 303    struct {
 304       boolean no_swtnl;
 305       boolean force_swtnl;
 306       boolean use_min_mipmap;
 307
 308       /* incremented for each shader */
 309       unsigned shader_id;
 310
 311       unsigned disable_shader;
 312    } debug;
 313
 314    struct {
 315       struct draw_context *draw;
 316       struct vbuf_render *backend;
 317       unsigned hw_prim;
 318       boolean new_vbuf;
 319       boolean new_vdecl;
 320    } swtnl;
 321
 322    struct {
 323       unsigned dirty[4];
 324
 325       unsigned texture_timestamp;
 326       unsigned next_fs_id;
 327       unsigned next_vs_id;
 328
 329       /* Internally generated shaders:
 330        */
 331       unsigned white_fs_id;
 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         0x5000
 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
 384
 385
 386
 387
 388 /***********************************************************************
 389  * svga_clear.c:
 390  */
 391 void svga_clear(struct pipe_context *pipe,
 392                 unsigned buffers,
 393                 const float *rgba,
 394                 double depth,
 395                 unsigned stencil);
 396
 397
 398 /***********************************************************************
 399  * svga_screen_texture.c:
 400  */
 401 void svga_mark_surfaces_dirty(struct svga_context *svga);
 402
 403
 404
 405
 406 void svga_init_state_functions( struct svga_context *svga );
 407 void svga_init_flush_functions( struct svga_context *svga );
 408 void svga_init_string_functions( struct svga_context *svga );
 409 void svga_init_blit_functions(struct svga_context *svga);
 410
 411 void svga_init_blend_functions( struct svga_context *svga );
 412 void svga_init_depth_stencil_functions( struct svga_context *svga );
 413 void svga_init_misc_functions( struct svga_context *svga );
 414 void svga_init_rasterizer_functions( struct svga_context *svga );
 415 void svga_init_sampler_functions( struct svga_context *svga );
 416 void svga_init_fs_functions( struct svga_context *svga );
 417 void svga_init_vs_functions( struct svga_context *svga );
 418 void svga_init_vertex_functions( struct svga_context *svga );
 419 void svga_init_constbuffer_functions( struct svga_context *svga );
 420 void svga_init_draw_functions( struct svga_context *svga );
 421 void svga_init_query_functions( struct svga_context *svga );
 422
 423 void svga_cleanup_vertex_state( struct svga_context *svga );
 424 void svga_cleanup_tss_binding( struct svga_context *svga );
 425 void svga_cleanup_framebuffer( struct svga_context *svga );
 426
 427 void svga_context_flush( struct svga_context *svga,
 428                          struct pipe_fence_handle **pfence );
 429
 430 void svga_hwtnl_flush_retry( struct svga_context *svga );
 431
 432
 433 /***********************************************************************
 434  * Inline conversion functions.  These are better-typed than the
 435  * macros used previously:
 436  */
 437 static INLINE struct svga_context *
 438 svga_context( struct pipe_context *pipe )
 439 {
 440    return (struct svga_context *)pipe;
 441 }
 442
 443
 444
 445 #endif