src/mesa/drivers/dri/intel/intel_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef INTELCONTEXT_INC
  29 #define INTELCONTEXT_INC
  30
  31
  32 #include <stdbool.h>
  33 #include <string.h>
  34 #include "main/mtypes.h"
  35 #include "main/mm.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39         /* Evil hack for using libdrm in a c++ compiler. */
  40         #define virtual virt
  41 #endif
  42
  43 #include "drm.h"
  44 #include "intel_bufmgr.h"
  45
  46 #include "intel_screen.h"
  47 #include "intel_tex_obj.h"
  48 #include "i915_drm.h"
  49
  50 #ifdef __cplusplus
  51         #undef virtual
  52 #endif
  53
  54 #include "tnl/t_vertex.h"
  55
  56 #define TAG(x) intel##x
  57 #include "tnl_dd/t_dd_vertex.h"
  58 #undef TAG
  59
  60 #define DV_PF_555  (1<<8)
  61 #define DV_PF_565  (2<<8)
  62 #define DV_PF_8888 (3<<8)
  63 #define DV_PF_4444 (8<<8)
  64 #define DV_PF_1555 (9<<8)
  65
  66 struct intel_region;
  67 struct intel_context;
  68
  69 typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
  70                                 intelVertex *, intelVertex *);
  71 typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
  72                                  intelVertex *);
  73 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
  74
  75 /**
  76  * Bits for intel->Fallback field
  77  */
  78 /*@{*/
  79 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  80 #define INTEL_FALLBACK_READ_BUFFER       0x2
  81 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  82 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  83 #define INTEL_FALLBACK_USER              0x10
  84 #define INTEL_FALLBACK_RENDERMODE        0x20
  85 #define INTEL_FALLBACK_TEXTURE           0x40
  86 #define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
  87 /*@}*/
  88
  89 extern void intelFallback(struct intel_context *intel, GLbitfield bit,
  90                           bool mode);
  91 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  92
  93
  94 #define INTEL_WRITE_PART  0x1
  95 #define INTEL_WRITE_FULL  0x2
  96 #define INTEL_READ        0x4
  97
  98 #define INTEL_MAX_FIXUP 64
  99
 100 #ifndef likely
 101 #ifdef __GNUC__
 102 #define likely(expr) (__builtin_expect(expr, 1))
 103 #define unlikely(expr) (__builtin_expect(expr, 0))
 104 #else
 105 #define likely(expr) (expr)
 106 #define unlikely(expr) (expr)
 107 #endif
 108 #endif
 109
 110 struct intel_sync_object {
 111    struct gl_sync_object Base;
 112
 113    /** Batch associated with this sync object */
 114    drm_intel_bo *bo;
 115 };
 116
 117 struct brw_context;
 118
 119 struct intel_batchbuffer {
 120    /** Current batchbuffer being queued up. */
 121    drm_intel_bo *bo;
 122    /** Last BO submitted to the hardware.  Used for glFinish(). */
 123    drm_intel_bo *last_bo;
 124    /** BO for post-sync nonzero writes for gen6 workaround. */
 125    drm_intel_bo *workaround_bo;
 126    bool need_workaround_flush;
 127
 128    struct cached_batch_item *cached_items;
 129
 130    uint16_t emit, total;
 131    uint16_t used, reserved_space;
 132    uint32_t map[8192];
 133 #define BATCH_SZ (8192*sizeof(uint32_t))
 134
 135    uint32_t state_batch_offset;
 136    bool is_blit;
 137    bool needs_sol_reset;
 138
 139    struct {
 140       uint16_t used;
 141       int reloc_count;
 142    } saved;
 143 };
 144
 145 /**
 146  * intel_context is derived from Mesa's context class: struct gl_context.
 147  */
 148 struct intel_context
 149 {
 150    struct gl_context ctx;  /**< base class, must be first field */
 151
 152    struct
 153    {
 154       void (*destroy) (struct intel_context * intel);
 155       void (*emit_state) (struct intel_context * intel);
 156       void (*finish_batch) (struct intel_context * intel);
 157       void (*new_batch) (struct intel_context * intel);
 158       void (*emit_invarient_state) (struct intel_context * intel);
 159       void (*update_texture_state) (struct intel_context * intel);
 160
 161       void (*render_start) (struct intel_context * intel);
 162       void (*render_prevalidate) (struct intel_context * intel);
 163       void (*set_draw_region) (struct intel_context * intel,
 164                                struct intel_region * draw_regions[],
 165                                struct intel_region * depth_region,
 166                                GLuint num_regions);
 167       void (*update_draw_buffer)(struct intel_context *intel);
 168
 169       void (*reduced_primitive_state) (struct intel_context * intel,
 170                                        GLenum rprim);
 171
 172       bool (*check_vertex_size) (struct intel_context * intel,
 173                                       GLuint expected);
 174       void (*invalidate_state) (struct intel_context *intel,
 175                                 GLuint new_state);
 176
 177       void (*assert_not_dirty) (struct intel_context *intel);
 178
 179       void (*debug_batch)(struct intel_context *intel);
 180       void (*annotate_aub)(struct intel_context *intel);
 181       bool (*render_target_supported)(struct intel_context *intel,
 182                                       struct gl_renderbuffer *rb);
 183
 184       /** Can HiZ be enabled on a depthbuffer of the given format? */
 185       bool (*is_hiz_depth_format)(struct intel_context *intel,
 186                                   gl_format format);
 187
 188       /**
 189        * Surface state operations (i965+ only)
 190        * \{
 191        */
 192       void (*update_texture_surface)(struct gl_context *ctx,
 193                                      unsigned unit,
 194                                      uint32_t *binding_table,
 195                                      unsigned surf_index);
 196       void (*update_renderbuffer_surface)(struct brw_context *brw,
 197                                           struct gl_renderbuffer *rb,
 198                                           unsigned unit);
 199       void (*update_null_renderbuffer_surface)(struct brw_context *brw,
 200                                                unsigned unit);
 201       void (*create_constant_surface)(struct brw_context *brw,
 202                                       drm_intel_bo *bo,
 203                                       uint32_t offset,
 204                                       int width,
 205                                       uint32_t *out_offset);
 206       /** \} */
 207    } vtbl;
 208
 209    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 210    GLuint NewGLState;
 211
 212    dri_bufmgr *bufmgr;
 213    unsigned int maxBatchSize;
 214
 215    /**
 216     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 217     */
 218    int gen;
 219    int gt;
 220    bool needs_ff_sync;
 221    bool is_haswell;
 222    bool is_g4x;
 223    bool is_945;
 224    bool has_separate_stencil;
 225    bool must_use_separate_stencil;
 226    bool has_hiz;
 227    bool has_llc;
 228    bool has_swizzling;
 229
 230    int urb_size;
 231
 232    drm_intel_context *hw_ctx;
 233
 234    struct intel_batchbuffer batch;
 235
 236    drm_intel_bo *first_post_swapbuffers_batch;
 237    bool need_throttle;
 238    bool no_batch_wrap;
 239    bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
 240
 241    struct
 242    {
 243       GLuint id;
 244       uint32_t start_ptr; /**< for i8xx */
 245       uint32_t primitive;       /**< Current hardware primitive type */
 246       void (*flush) (struct intel_context *);
 247       drm_intel_bo *vb_bo;
 248       uint8_t *vb;
 249       unsigned int start_offset; /**< Byte offset of primitive sequence */
 250       unsigned int current_offset; /**< Byte offset of next vertex */
 251       unsigned int count;       /**< Number of vertices in current primitive */
 252    } prim;
 253
 254    struct {
 255       drm_intel_bo *bo;
 256       GLuint offset;
 257       uint32_t buffer_len;
 258       uint32_t buffer_offset;
 259       char buffer[4096];
 260    } upload;
 261
 262    GLuint stats_wm;
 263
 264    /* Offsets of fields within the current vertex:
 265     */
 266    GLuint coloroffset;
 267    GLuint specoffset;
 268    GLuint wpos_offset;
 269
 270    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 271    GLuint vertex_attr_count;
 272
 273    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 274
 275    bool hw_stencil;
 276    bool hw_stipple;
 277    bool no_rast;
 278    bool always_flush_batch;
 279    bool always_flush_cache;
 280
 281    /* State for intelvb.c and inteltris.c.
 282     */
 283    GLuint RenderIndex;
 284    GLmatrix ViewportMatrix;
 285    GLenum render_primitive;
 286    GLenum reduced_primitive; /*< Only gen < 6 */
 287    GLuint vertex_size;
 288    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 289
 290    /* Fallback rasterization functions
 291     */
 292    intel_point_func draw_point;
 293    intel_line_func draw_line;
 294    intel_tri_func draw_tri;
 295
 296    /**
 297     * Set if rendering has occured to the drawable's front buffer.
 298     *
 299     * This is used in the DRI2 case to detect that glFlush should also copy
 300     * the contents of the fake front buffer to the real front buffer.
 301     */
 302    bool front_buffer_dirty;
 303
 304    /**
 305     * Track whether front-buffer rendering is currently enabled
 306     *
 307     * A separate flag is used to track this in order to support MRT more
 308     * easily.
 309     */
 310    bool is_front_buffer_rendering;
 311    /**
 312     * Track whether front-buffer is the current read target.
 313     *
 314     * This is closely associated with is_front_buffer_rendering, but may
 315     * be set separately.  The DRI2 fake front buffer must be referenced
 316     * either way.
 317     */
 318    bool is_front_buffer_reading;
 319
 320    /**
 321     * Count of intel_regions that are mapped.
 322     *
 323     * This allows us to assert that no batch buffer is emitted if a
 324     * region is mapped.
 325     */
 326    int num_mapped_regions;
 327
 328    bool use_texture_tiling;
 329    bool use_early_z;
 330
 331    int driFd;
 332
 333    __DRIcontext *driContext;
 334    struct intel_screen *intelScreen;
 335    void (*saved_viewport)(struct gl_context * ctx,
 336                           GLint x, GLint y, GLsizei width, GLsizei height);
 337
 338    /**
 339     * Configuration cache
 340     */
 341    driOptionCache optionCache;
 342 };
 343
 344 extern char *__progname;
 345
 346
 347 #define SUBPIXEL_X 0.125
 348 #define SUBPIXEL_Y 0.125
 349
 350 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 351
 352 /**
 353  * Align a value up to an alignment value
 354  *
 355  * If \c value is not already aligned to the requested alignment value, it
 356  * will be rounded up.
 357  *
 358  * \param value  Value to be rounded
 359  * \param alignment  Alignment value to be used.  This must be a power of two.
 360  *
 361  * \sa ROUND_DOWN_TO()
 362  */
 363 #define ALIGN(value, alignment)  (((value) + alignment - 1) & ~(alignment - 1))
 364
 365 /**
 366  * Align a value down to an alignment value
 367  *
 368  * If \c value is not already aligned to the requested alignment value, it
 369  * will be rounded down.
 370  *
 371  * \param value  Value to be rounded
 372  * \param alignment  Alignment value to be used.  This must be a power of two.
 373  *
 374  * \sa ALIGN()
 375  */
 376 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
 377
 378 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 379
 380 static INLINE uint32_t
 381 U_FIXED(float value, uint32_t frac_bits)
 382 {
 383    value *= (1 << frac_bits);
 384    return value < 0 ? 0 : value;
 385 }
 386
 387 static INLINE uint32_t
 388 S_FIXED(float value, uint32_t frac_bits)
 389 {
 390    return value * (1 << frac_bits);
 391 }
 392
 393 #define INTEL_FIREVERTICES(intel)               \
 394 do {                                            \
 395    if ((intel)->prim.flush)                     \
 396       (intel)->prim.flush(intel);               \
 397 } while (0)
 398
 399 /* ================================================================
 400  * From linux kernel i386 header files, copes with odd sizes better
 401  * than COPY_DWORDS would:
 402  * XXX Put this in src/mesa/main/imports.h ???
 403  */
 404 #if defined(i386) || defined(__i386__)
 405 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 406 {
 407    int d0, d1, d2;
 408    __asm__ __volatile__(
 409       "rep ; movsl\n\t"
 410       "testb $2,%b4\n\t"
 411       "je 1f\n\t"
 412       "movsw\n"
 413       "1:\ttestb $1,%b4\n\t"
 414       "je 2f\n\t"
 415       "movsb\n"
 416       "2:"
 417       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 418       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 419       : "memory");
 420    return (to);
 421 }
 422 #else
 423 #define __memcpy(a,b,c) memcpy(a,b,c)
 424 #endif
 425
 426
 427 /* ================================================================
 428  * Debugging:
 429  */
 430 extern int INTEL_DEBUG;
 431
 432 #define DEBUG_TEXTURE   0x1
 433 #define DEBUG_STATE     0x2
 434 #define DEBUG_IOCTL     0x4
 435 #define DEBUG_BLIT      0x8
 436 #define DEBUG_MIPTREE   0x10
 437 #define DEBUG_PERF      0x20
 438 #define DEBUG_VERBOSE   0x40
 439 #define DEBUG_BATCH     0x80
 440 #define DEBUG_PIXEL     0x100
 441 #define DEBUG_BUFMGR    0x200
 442 #define DEBUG_REGION    0x400
 443 #define DEBUG_FBO       0x800
 444 #define DEBUG_GS        0x1000
 445 #define DEBUG_SYNC      0x2000
 446 #define DEBUG_PRIMS     0x4000
 447 #define DEBUG_VERTS     0x8000
 448 #define DEBUG_DRI       0x10000
 449 #define DEBUG_SF        0x20000
 450 #define DEBUG_SANITY    0x40000
 451 #define DEBUG_SLEEP     0x80000
 452 #define DEBUG_STATS     0x100000
 453 #define DEBUG_TILE      0x200000
 454 #define DEBUG_WM        0x400000
 455 #define DEBUG_URB       0x800000
 456 #define DEBUG_VS        0x1000000
 457 #define DEBUG_CLIP      0x2000000
 458 #define DEBUG_AUB       0x4000000
 459
 460 #define DBG(...) do {                                           \
 461         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 462                 printf(__VA_ARGS__);                    \
 463 } while(0)
 464
 465 #define fallback_debug(...) do {                                \
 466         if (unlikely(INTEL_DEBUG & DEBUG_PERF))                 \
 467                 printf(__VA_ARGS__);                            \
 468 } while(0)
 469
 470 #define perf_debug(...) do {                                    \
 471         if (unlikely(INTEL_DEBUG & DEBUG_PERF))                 \
 472                 printf(__VA_ARGS__);                            \
 473 } while(0)
 474
 475 #define PCI_CHIP_845_G                  0x2562
 476 #define PCI_CHIP_I830_M                 0x3577
 477 #define PCI_CHIP_I855_GM                0x3582
 478 #define PCI_CHIP_I865_G                 0x2572
 479 #define PCI_CHIP_I915_G                 0x2582
 480 #define PCI_CHIP_I915_GM                0x2592
 481 #define PCI_CHIP_I945_G                 0x2772
 482 #define PCI_CHIP_I945_GM                0x27A2
 483 #define PCI_CHIP_I945_GME               0x27AE
 484 #define PCI_CHIP_G33_G                  0x29C2
 485 #define PCI_CHIP_Q35_G                  0x29B2
 486 #define PCI_CHIP_Q33_G                  0x29D2
 487
 488
 489 /* ================================================================
 490  * intel_context.c:
 491  */
 492
 493 extern bool intelInitContext(struct intel_context *intel,
 494                                   int api,
 495                                   const struct gl_config * mesaVis,
 496                                   __DRIcontext * driContextPriv,
 497                                   void *sharedContextPrivate,
 498                                   struct dd_function_table *functions);
 499
 500 extern void intelFinish(struct gl_context * ctx);
 501 extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
 502 extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
 503
 504 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
 505
 506 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 507
 508 void intel_init_syncobj_functions(struct dd_function_table *functions);
 509
 510
 511 /* ================================================================
 512  * intel_state.c:
 513  */
 514 extern void intelInitStateFuncs(struct dd_function_table *functions);
 515
 516 #define COMPAREFUNC_ALWAYS              0
 517 #define COMPAREFUNC_NEVER               0x1
 518 #define COMPAREFUNC_LESS                0x2
 519 #define COMPAREFUNC_EQUAL               0x3
 520 #define COMPAREFUNC_LEQUAL              0x4
 521 #define COMPAREFUNC_GREATER             0x5
 522 #define COMPAREFUNC_NOTEQUAL            0x6
 523 #define COMPAREFUNC_GEQUAL              0x7
 524
 525 #define STENCILOP_KEEP                  0
 526 #define STENCILOP_ZERO                  0x1
 527 #define STENCILOP_REPLACE               0x2
 528 #define STENCILOP_INCRSAT               0x3
 529 #define STENCILOP_DECRSAT               0x4
 530 #define STENCILOP_INCR                  0x5
 531 #define STENCILOP_DECR                  0x6
 532 #define STENCILOP_INVERT                0x7
 533
 534 #define LOGICOP_CLEAR                   0
 535 #define LOGICOP_NOR                     0x1
 536 #define LOGICOP_AND_INV                 0x2
 537 #define LOGICOP_COPY_INV                0x3
 538 #define LOGICOP_AND_RVRSE               0x4
 539 #define LOGICOP_INV                     0x5
 540 #define LOGICOP_XOR                     0x6
 541 #define LOGICOP_NAND                    0x7
 542 #define LOGICOP_AND                     0x8
 543 #define LOGICOP_EQUIV                   0x9
 544 #define LOGICOP_NOOP                    0xa
 545 #define LOGICOP_OR_INV                  0xb
 546 #define LOGICOP_COPY                    0xc
 547 #define LOGICOP_OR_RVRSE                0xd
 548 #define LOGICOP_OR                      0xe
 549 #define LOGICOP_SET                     0xf
 550
 551 #define BLENDFACT_ZERO                  0x01
 552 #define BLENDFACT_ONE                   0x02
 553 #define BLENDFACT_SRC_COLR              0x03
 554 #define BLENDFACT_INV_SRC_COLR          0x04
 555 #define BLENDFACT_SRC_ALPHA             0x05
 556 #define BLENDFACT_INV_SRC_ALPHA         0x06
 557 #define BLENDFACT_DST_ALPHA             0x07
 558 #define BLENDFACT_INV_DST_ALPHA         0x08
 559 #define BLENDFACT_DST_COLR              0x09
 560 #define BLENDFACT_INV_DST_COLR          0x0a
 561 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 562 #define BLENDFACT_CONST_COLOR           0x0c
 563 #define BLENDFACT_INV_CONST_COLOR       0x0d
 564 #define BLENDFACT_CONST_ALPHA           0x0e
 565 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 566 #define BLENDFACT_MASK                  0x0f
 567
 568 enum {
 569    DRI_CONF_BO_REUSE_DISABLED,
 570    DRI_CONF_BO_REUSE_ALL
 571 };
 572
 573 extern int intel_translate_shadow_compare_func(GLenum func);
 574 extern int intel_translate_compare_func(GLenum func);
 575 extern int intel_translate_stencil_op(GLenum op);
 576 extern int intel_translate_blend_factor(GLenum factor);
 577 extern int intel_translate_logic_op(GLenum opcode);
 578
 579 void intel_update_renderbuffers(__DRIcontext *context,
 580                                 __DRIdrawable *drawable);
 581 void intel_prepare_render(struct intel_context *intel);
 582
 583 void
 584 intel_downsample_for_dri2_flush(struct intel_context *intel,
 585                                 __DRIdrawable *drawable);
 586
 587 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 588                                   uint32_t buffer_id);
 589 void intel_init_texture_formats(struct gl_context *ctx);
 590
 591 /*======================================================================
 592  * Inline conversion functions.
 593  * These are better-typed than the macros used previously:
 594  */
 595 static INLINE struct intel_context *
 596 intel_context(struct gl_context * ctx)
 597 {
 598    return (struct intel_context *) ctx;
 599 }
 600
 601 static INLINE bool
 602 is_power_of_two(uint32_t value)
 603 {
 604    return (value & (value - 1)) == 0;
 605 }
 606
 607 #ifdef __cplusplus
 608 }
 609 #endif
 610
 611 #endif