src/mesa/drivers/dri/i915/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
 125    struct cached_batch_item *cached_items;
 126
 127    uint16_t emit, total;
 128    uint16_t used, reserved_space;
 129    uint32_t *map;
 130    uint32_t *cpu_map;
 131 #define BATCH_SZ (8192*sizeof(uint32_t))
 132
 133    uint32_t state_batch_offset;
 134    bool is_blit;
 135    bool needs_sol_reset;
 136 };
 137
 138 /**
 139  * intel_context is derived from Mesa's context class: struct gl_context.
 140  */
 141 struct intel_context
 142 {
 143    struct gl_context ctx;  /**< base class, must be first field */
 144
 145    struct
 146    {
 147       void (*destroy) (struct intel_context * intel);
 148       void (*emit_state) (struct intel_context * intel);
 149       void (*finish_batch) (struct intel_context * intel);
 150       void (*new_batch) (struct intel_context * intel);
 151       void (*emit_invarient_state) (struct intel_context * intel);
 152       void (*update_texture_state) (struct intel_context * intel);
 153
 154       void (*render_start) (struct intel_context * intel);
 155       void (*render_prevalidate) (struct intel_context * intel);
 156       void (*set_draw_region) (struct intel_context * intel,
 157                                struct intel_region * draw_regions[],
 158                                struct intel_region * depth_region,
 159                                GLuint num_regions);
 160       void (*update_draw_buffer)(struct intel_context *intel);
 161
 162       void (*reduced_primitive_state) (struct intel_context * intel,
 163                                        GLenum rprim);
 164
 165       bool (*check_vertex_size) (struct intel_context * intel,
 166                                       GLuint expected);
 167       void (*invalidate_state) (struct intel_context *intel,
 168                                 GLuint new_state);
 169
 170       void (*assert_not_dirty) (struct intel_context *intel);
 171
 172       void (*debug_batch)(struct intel_context *intel);
 173       void (*annotate_aub)(struct intel_context *intel);
 174       bool (*render_target_supported)(struct intel_context *intel,
 175                                       struct gl_renderbuffer *rb);
 176
 177       /**
 178        * Surface state operations (i965+ only)
 179        * \{
 180        */
 181       void (*update_texture_surface)(struct gl_context *ctx,
 182                                      unsigned unit,
 183                                      uint32_t *binding_table,
 184                                      unsigned surf_index);
 185       void (*update_renderbuffer_surface)(struct brw_context *brw,
 186                                           struct gl_renderbuffer *rb,
 187                                           bool layered,
 188                                           unsigned unit);
 189       void (*update_null_renderbuffer_surface)(struct brw_context *brw,
 190                                                unsigned unit);
 191       void (*create_constant_surface)(struct brw_context *brw,
 192                                       drm_intel_bo *bo,
 193                                       uint32_t offset,
 194                                       uint32_t size,
 195                                       uint32_t *out_offset,
 196                                       bool dword_pitch);
 197       /** \} */
 198    } vtbl;
 199
 200    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 201    GLuint NewGLState;
 202
 203    dri_bufmgr *bufmgr;
 204    unsigned int maxBatchSize;
 205
 206    /**
 207     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 208     */
 209    int gen;
 210    int gt;
 211    bool is_haswell;
 212    bool is_baytrail;
 213    bool is_g4x;
 214    bool is_945;
 215    bool has_llc;
 216    bool has_swizzling;
 217
 218    int urb_size;
 219
 220    drm_intel_context *hw_ctx;
 221
 222    struct intel_batchbuffer batch;
 223
 224    drm_intel_bo *first_post_swapbuffers_batch;
 225    bool need_throttle;
 226    bool no_batch_wrap;
 227    bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
 228
 229    /**
 230     * Set if we're either a debug context or the INTEL_DEBUG=perf environment
 231     * variable is set, this is the flag indicating to do expensive work that
 232     * might lead to a perf_debug() call.
 233     */
 234    bool perf_debug;
 235
 236    struct
 237    {
 238       GLuint id;
 239       uint32_t start_ptr; /**< for i8xx */
 240       uint32_t primitive;       /**< Current hardware primitive type */
 241       void (*flush) (struct intel_context *);
 242       drm_intel_bo *vb_bo;
 243       uint8_t *vb;
 244       unsigned int start_offset; /**< Byte offset of primitive sequence */
 245       unsigned int current_offset; /**< Byte offset of next vertex */
 246       unsigned int count;       /**< Number of vertices in current primitive */
 247    } prim;
 248
 249    struct {
 250       drm_intel_bo *bo;
 251       GLuint offset;
 252       uint32_t buffer_len;
 253       uint32_t buffer_offset;
 254       char buffer[4096];
 255    } upload;
 256
 257    uint32_t max_gtt_map_object_size;
 258
 259    GLuint stats_wm;
 260
 261    /* Offsets of fields within the current vertex:
 262     */
 263    GLuint coloroffset;
 264    GLuint specoffset;
 265    GLuint wpos_offset;
 266
 267    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 268    GLuint vertex_attr_count;
 269
 270    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 271
 272    bool hw_stencil;
 273    bool hw_stipple;
 274    bool no_rast;
 275    bool always_flush_batch;
 276    bool always_flush_cache;
 277    bool disable_throttling;
 278
 279    /* State for intelvb.c and inteltris.c.
 280     */
 281    GLuint RenderIndex;
 282    GLmatrix ViewportMatrix;
 283    GLenum render_primitive;
 284    GLenum reduced_primitive; /*< Only gen < 6 */
 285    GLuint vertex_size;
 286    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 287
 288    /* Fallback rasterization functions
 289     */
 290    intel_point_func draw_point;
 291    intel_line_func draw_line;
 292    intel_tri_func draw_tri;
 293
 294    /**
 295     * Set if rendering has occured to the drawable's front buffer.
 296     *
 297     * This is used in the DRI2 case to detect that glFlush should also copy
 298     * the contents of the fake front buffer to the real front buffer.
 299     */
 300    bool front_buffer_dirty;
 301
 302    /**
 303     * Track whether front-buffer rendering is currently enabled
 304     *
 305     * A separate flag is used to track this in order to support MRT more
 306     * easily.
 307     */
 308    bool is_front_buffer_rendering;
 309    /**
 310     * Track whether front-buffer is the current read target.
 311     *
 312     * This is closely associated with is_front_buffer_rendering, but may
 313     * be set separately.  The DRI2 fake front buffer must be referenced
 314     * either way.
 315     */
 316    bool is_front_buffer_reading;
 317
 318    bool use_early_z;
 319
 320    int driFd;
 321
 322    __DRIcontext *driContext;
 323    struct intel_screen *intelScreen;
 324    void (*saved_viewport)(struct gl_context * ctx,
 325                           GLint x, GLint y, GLsizei width, GLsizei height);
 326
 327    /**
 328     * Configuration cache
 329     */
 330    driOptionCache optionCache;
 331 };
 332
 333 extern char *__progname;
 334
 335
 336 #define SUBPIXEL_X 0.125
 337 #define SUBPIXEL_Y 0.125
 338
 339 /**
 340  * Align a value down to an alignment value
 341  *
 342  * If \c value is not already aligned to the requested alignment value, it
 343  * will be rounded down.
 344  *
 345  * \param value  Value to be rounded
 346  * \param alignment  Alignment value to be used.  This must be a power of two.
 347  *
 348  * \sa ALIGN()
 349  */
 350 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
 351
 352 static INLINE uint32_t
 353 U_FIXED(float value, uint32_t frac_bits)
 354 {
 355    value *= (1 << frac_bits);
 356    return value < 0 ? 0 : value;
 357 }
 358
 359 static INLINE uint32_t
 360 S_FIXED(float value, uint32_t frac_bits)
 361 {
 362    return value * (1 << frac_bits);
 363 }
 364
 365 #define INTEL_FIREVERTICES(intel)               \
 366 do {                                            \
 367    if ((intel)->prim.flush)                     \
 368       (intel)->prim.flush(intel);               \
 369 } while (0)
 370
 371 /* ================================================================
 372  * From linux kernel i386 header files, copes with odd sizes better
 373  * than COPY_DWORDS would:
 374  * XXX Put this in src/mesa/main/imports.h ???
 375  */
 376 #if defined(i386) || defined(__i386__)
 377 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 378 {
 379    int d0, d1, d2;
 380    __asm__ __volatile__(
 381       "rep ; movsl\n\t"
 382       "testb $2,%b4\n\t"
 383       "je 1f\n\t"
 384       "movsw\n"
 385       "1:\ttestb $1,%b4\n\t"
 386       "je 2f\n\t"
 387       "movsb\n"
 388       "2:"
 389       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 390       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 391       : "memory");
 392    return (to);
 393 }
 394 #else
 395 #define __memcpy(a,b,c) memcpy(a,b,c)
 396 #endif
 397
 398
 399 /* ================================================================
 400  * Debugging:
 401  */
 402 extern int INTEL_DEBUG;
 403
 404 #define DEBUG_TEXTURE   0x1
 405 #define DEBUG_STATE     0x2
 406 #define DEBUG_IOCTL     0x4
 407 #define DEBUG_BLIT      0x8
 408 #define DEBUG_MIPTREE   0x10
 409 #define DEBUG_PERF      0x20
 410 #define DEBUG_BATCH     0x80
 411 #define DEBUG_PIXEL     0x100
 412 #define DEBUG_BUFMGR    0x200
 413 #define DEBUG_REGION    0x400
 414 #define DEBUG_FBO       0x800
 415 #define DEBUG_GS        0x1000
 416 #define DEBUG_SYNC      0x2000
 417 #define DEBUG_PRIMS     0x4000
 418 #define DEBUG_VERTS     0x8000
 419 #define DEBUG_DRI       0x10000
 420 #define DEBUG_SF        0x20000
 421 #define DEBUG_STATS     0x100000
 422 #define DEBUG_WM        0x400000
 423 #define DEBUG_URB       0x800000
 424 #define DEBUG_VS        0x1000000
 425 #define DEBUG_CLIP      0x2000000
 426 #define DEBUG_AUB       0x4000000
 427 #define DEBUG_BLORP     0x10000000
 428 #define DEBUG_NO16      0x20000000
 429
 430 #ifdef HAVE_ANDROID_PLATFORM
 431 #define LOG_TAG "INTEL-MESA"
 432 #include <cutils/log.h>
 433 #ifndef ALOGW
 434 #define ALOGW LOGW
 435 #endif
 436 #define dbg_printf(...) ALOGW(__VA_ARGS__)
 437 #else
 438 #define dbg_printf(...) printf(__VA_ARGS__)
 439 #endif /* HAVE_ANDROID_PLATFORM */
 440
 441 #define DBG(...) do {                                           \
 442         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 443                 dbg_printf(__VA_ARGS__);                        \
 444 } while(0)
 445
 446 #define perf_debug(...) do {                                    \
 447    static GLuint msg_id = 0;                                    \
 448    if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
 449       dbg_printf(__VA_ARGS__);                                  \
 450    if (intel->perf_debug)                                       \
 451       _mesa_gl_debug(&intel->ctx, &msg_id,                      \
 452                      MESA_DEBUG_TYPE_PERFORMANCE,               \
 453                      MESA_DEBUG_SEVERITY_MEDIUM,                \
 454                      __VA_ARGS__);                              \
 455 } while(0)
 456
 457 #define WARN_ONCE(cond, fmt...) do {                            \
 458    if (unlikely(cond)) {                                        \
 459       static bool _warned = false;                              \
 460       static GLuint msg_id = 0;                                 \
 461       if (!_warned) {                                           \
 462          fprintf(stderr, "WARNING: ");                          \
 463          fprintf(stderr, fmt);                                  \
 464          _warned = true;                                        \
 465                                                                 \
 466          _mesa_gl_debug(ctx, &msg_id,                           \
 467                         MESA_DEBUG_TYPE_OTHER,                  \
 468                         MESA_DEBUG_SEVERITY_HIGH, fmt);         \
 469       }                                                         \
 470    }                                                            \
 471 } while (0)
 472
 473 #define PCI_CHIP_845_G                  0x2562
 474 #define PCI_CHIP_I830_M                 0x3577
 475 #define PCI_CHIP_I855_GM                0x3582
 476 #define PCI_CHIP_I865_G                 0x2572
 477 #define PCI_CHIP_I915_G                 0x2582
 478 #define PCI_CHIP_I915_GM                0x2592
 479 #define PCI_CHIP_I945_G                 0x2772
 480 #define PCI_CHIP_I945_GM                0x27A2
 481 #define PCI_CHIP_I945_GME               0x27AE
 482 #define PCI_CHIP_G33_G                  0x29C2
 483 #define PCI_CHIP_Q35_G                  0x29B2
 484 #define PCI_CHIP_Q33_G                  0x29D2
 485
 486
 487 /* ================================================================
 488  * intel_context.c:
 489  */
 490
 491 extern bool intelInitContext(struct intel_context *intel,
 492                              int api,
 493                              unsigned major_version,
 494                              unsigned minor_version,
 495                              const struct gl_config * mesaVis,
 496                              __DRIcontext * driContextPriv,
 497                              void *sharedContextPrivate,
 498                              struct dd_function_table *functions,
 499                              unsigned *dri_ctx_error);
 500
 501 extern void intelFinish(struct gl_context * ctx);
 502 extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
 503 extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
 504
 505 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
 506
 507 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 508
 509 void intel_init_syncobj_functions(struct dd_function_table *functions);
 510
 511
 512 /* ================================================================
 513  * intel_state.c:
 514  */
 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 i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 584                                   uint32_t buffer_id);
 585 void intel_init_texture_formats(struct gl_context *ctx);
 586
 587 /*======================================================================
 588  * Inline conversion functions.
 589  * These are better-typed than the macros used previously:
 590  */
 591 static INLINE struct intel_context *
 592 intel_context(struct gl_context * ctx)
 593 {
 594    return (struct intel_context *) ctx;
 595 }
 596
 597 static INLINE bool
 598 is_power_of_two(uint32_t value)
 599 {
 600    return (value & (value - 1)) == 0;
 601 }
 602
 603 #ifdef __cplusplus
 604 }
 605 #endif
 606
 607 #endif