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    uint16_t emit, total;
 126    uint16_t used, reserved_space;
 127    uint32_t *map;
 128    uint32_t *cpu_map;
 129 #define BATCH_SZ (8192*sizeof(uint32_t))
 130
 131    uint32_t state_batch_offset;
 132    bool is_blit;
 133    bool needs_sol_reset;
 134 };
 135
 136 /**
 137  * intel_context is derived from Mesa's context class: struct gl_context.
 138  */
 139 struct intel_context
 140 {
 141    struct gl_context ctx;  /**< base class, must be first field */
 142
 143    struct
 144    {
 145       void (*destroy) (struct intel_context * intel);
 146       void (*emit_state) (struct intel_context * intel);
 147       void (*finish_batch) (struct intel_context * intel);
 148       void (*new_batch) (struct intel_context * intel);
 149       void (*emit_invarient_state) (struct intel_context * intel);
 150       void (*update_texture_state) (struct intel_context * intel);
 151
 152       void (*render_start) (struct intel_context * intel);
 153       void (*render_prevalidate) (struct intel_context * intel);
 154       void (*set_draw_region) (struct intel_context * intel,
 155                                struct intel_region * draw_regions[],
 156                                struct intel_region * depth_region,
 157                                GLuint num_regions);
 158       void (*update_draw_buffer)(struct intel_context *intel);
 159
 160       void (*reduced_primitive_state) (struct intel_context * intel,
 161                                        GLenum rprim);
 162
 163       bool (*check_vertex_size) (struct intel_context * intel,
 164                                       GLuint expected);
 165       void (*invalidate_state) (struct intel_context *intel,
 166                                 GLuint new_state);
 167
 168       void (*assert_not_dirty) (struct intel_context *intel);
 169
 170       void (*debug_batch)(struct intel_context *intel);
 171       void (*annotate_aub)(struct intel_context *intel);
 172       bool (*render_target_supported)(struct intel_context *intel,
 173                                       struct gl_renderbuffer *rb);
 174    } vtbl;
 175
 176    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 177    GLuint NewGLState;
 178
 179    dri_bufmgr *bufmgr;
 180    unsigned int maxBatchSize;
 181
 182    /**
 183     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 184     */
 185    int gen;
 186    bool is_945;
 187    bool has_swizzling;
 188
 189    drm_intel_context *hw_ctx;
 190
 191    struct intel_batchbuffer batch;
 192
 193    drm_intel_bo *first_post_swapbuffers_batch;
 194    bool need_throttle;
 195    bool no_batch_wrap;
 196    bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
 197
 198    /**
 199     * Set if we're either a debug context or the INTEL_DEBUG=perf environment
 200     * variable is set, this is the flag indicating to do expensive work that
 201     * might lead to a perf_debug() call.
 202     */
 203    bool perf_debug;
 204
 205    struct
 206    {
 207       GLuint id;
 208       uint32_t start_ptr; /**< for i8xx */
 209       uint32_t primitive;       /**< Current hardware primitive type */
 210       void (*flush) (struct intel_context *);
 211       drm_intel_bo *vb_bo;
 212       uint8_t *vb;
 213       unsigned int start_offset; /**< Byte offset of primitive sequence */
 214       unsigned int current_offset; /**< Byte offset of next vertex */
 215       unsigned int count;       /**< Number of vertices in current primitive */
 216    } prim;
 217
 218    struct {
 219       drm_intel_bo *bo;
 220       GLuint offset;
 221       uint32_t buffer_len;
 222       uint32_t buffer_offset;
 223       char buffer[4096];
 224    } upload;
 225
 226    uint32_t max_gtt_map_object_size;
 227
 228    GLuint stats_wm;
 229
 230    /* Offsets of fields within the current vertex:
 231     */
 232    GLuint coloroffset;
 233    GLuint specoffset;
 234    GLuint wpos_offset;
 235
 236    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 237    GLuint vertex_attr_count;
 238
 239    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 240
 241    bool hw_stencil;
 242    bool hw_stipple;
 243    bool no_rast;
 244    bool always_flush_batch;
 245    bool always_flush_cache;
 246    bool disable_throttling;
 247
 248    /* State for intelvb.c and inteltris.c.
 249     */
 250    GLuint RenderIndex;
 251    GLmatrix ViewportMatrix;
 252    GLenum render_primitive;
 253    GLenum reduced_primitive; /*< Only gen < 6 */
 254    GLuint vertex_size;
 255    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 256
 257    /* Fallback rasterization functions
 258     */
 259    intel_point_func draw_point;
 260    intel_line_func draw_line;
 261    intel_tri_func draw_tri;
 262
 263    /**
 264     * Set if rendering has occured to the drawable's front buffer.
 265     *
 266     * This is used in the DRI2 case to detect that glFlush should also copy
 267     * the contents of the fake front buffer to the real front buffer.
 268     */
 269    bool front_buffer_dirty;
 270
 271    /**
 272     * Track whether front-buffer rendering is currently enabled
 273     *
 274     * A separate flag is used to track this in order to support MRT more
 275     * easily.
 276     */
 277    bool is_front_buffer_rendering;
 278    /**
 279     * Track whether front-buffer is the current read target.
 280     *
 281     * This is closely associated with is_front_buffer_rendering, but may
 282     * be set separately.  The DRI2 fake front buffer must be referenced
 283     * either way.
 284     */
 285    bool is_front_buffer_reading;
 286
 287    bool use_early_z;
 288
 289    int driFd;
 290
 291    __DRIcontext *driContext;
 292    struct intel_screen *intelScreen;
 293    void (*saved_viewport)(struct gl_context * ctx,
 294                           GLint x, GLint y, GLsizei width, GLsizei height);
 295
 296    /**
 297     * Configuration cache
 298     */
 299    driOptionCache optionCache;
 300 };
 301
 302 extern char *__progname;
 303
 304
 305 #define SUBPIXEL_X 0.125
 306 #define SUBPIXEL_Y 0.125
 307
 308 /**
 309  * Align a value down to an alignment value
 310  *
 311  * If \c value is not already aligned to the requested alignment value, it
 312  * will be rounded down.
 313  *
 314  * \param value  Value to be rounded
 315  * \param alignment  Alignment value to be used.  This must be a power of two.
 316  *
 317  * \sa ALIGN()
 318  */
 319 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
 320
 321 static INLINE uint32_t
 322 U_FIXED(float value, uint32_t frac_bits)
 323 {
 324    value *= (1 << frac_bits);
 325    return value < 0 ? 0 : value;
 326 }
 327
 328 static INLINE uint32_t
 329 S_FIXED(float value, uint32_t frac_bits)
 330 {
 331    return value * (1 << frac_bits);
 332 }
 333
 334 #define INTEL_FIREVERTICES(intel)               \
 335 do {                                            \
 336    if ((intel)->prim.flush)                     \
 337       (intel)->prim.flush(intel);               \
 338 } while (0)
 339
 340 /* ================================================================
 341  * From linux kernel i386 header files, copes with odd sizes better
 342  * than COPY_DWORDS would:
 343  * XXX Put this in src/mesa/main/imports.h ???
 344  */
 345 #if defined(i386) || defined(__i386__)
 346 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 347 {
 348    int d0, d1, d2;
 349    __asm__ __volatile__(
 350       "rep ; movsl\n\t"
 351       "testb $2,%b4\n\t"
 352       "je 1f\n\t"
 353       "movsw\n"
 354       "1:\ttestb $1,%b4\n\t"
 355       "je 2f\n\t"
 356       "movsb\n"
 357       "2:"
 358       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 359       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 360       : "memory");
 361    return (to);
 362 }
 363 #else
 364 #define __memcpy(a,b,c) memcpy(a,b,c)
 365 #endif
 366
 367
 368 /* ================================================================
 369  * Debugging:
 370  */
 371 extern int INTEL_DEBUG;
 372
 373 #define DEBUG_TEXTURE   0x1
 374 #define DEBUG_STATE     0x2
 375 #define DEBUG_IOCTL     0x4
 376 #define DEBUG_BLIT      0x8
 377 #define DEBUG_MIPTREE   0x10
 378 #define DEBUG_PERF      0x20
 379 #define DEBUG_BATCH     0x80
 380 #define DEBUG_PIXEL     0x100
 381 #define DEBUG_BUFMGR    0x200
 382 #define DEBUG_REGION    0x400
 383 #define DEBUG_FBO       0x800
 384 #define DEBUG_GS        0x1000
 385 #define DEBUG_SYNC      0x2000
 386 #define DEBUG_PRIMS     0x4000
 387 #define DEBUG_VERTS     0x8000
 388 #define DEBUG_DRI       0x10000
 389 #define DEBUG_SF        0x20000
 390 #define DEBUG_STATS     0x100000
 391 #define DEBUG_WM        0x400000
 392 #define DEBUG_URB       0x800000
 393 #define DEBUG_VS        0x1000000
 394 #define DEBUG_CLIP      0x2000000
 395 #define DEBUG_AUB       0x4000000
 396 #define DEBUG_BLORP     0x10000000
 397 #define DEBUG_NO16      0x20000000
 398
 399 #ifdef HAVE_ANDROID_PLATFORM
 400 #define LOG_TAG "INTEL-MESA"
 401 #include <cutils/log.h>
 402 #ifndef ALOGW
 403 #define ALOGW LOGW
 404 #endif
 405 #define dbg_printf(...) ALOGW(__VA_ARGS__)
 406 #else
 407 #define dbg_printf(...) printf(__VA_ARGS__)
 408 #endif /* HAVE_ANDROID_PLATFORM */
 409
 410 #define DBG(...) do {                                           \
 411         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 412                 dbg_printf(__VA_ARGS__);                        \
 413 } while(0)
 414
 415 #define perf_debug(...) do {                                    \
 416    static GLuint msg_id = 0;                                    \
 417    if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
 418       dbg_printf(__VA_ARGS__);                                  \
 419    if (intel->perf_debug)                                       \
 420       _mesa_gl_debug(&intel->ctx, &msg_id,                      \
 421                      MESA_DEBUG_TYPE_PERFORMANCE,               \
 422                      MESA_DEBUG_SEVERITY_MEDIUM,                \
 423                      __VA_ARGS__);                              \
 424 } while(0)
 425
 426 #define WARN_ONCE(cond, fmt...) do {                            \
 427    if (unlikely(cond)) {                                        \
 428       static bool _warned = false;                              \
 429       static GLuint msg_id = 0;                                 \
 430       if (!_warned) {                                           \
 431          fprintf(stderr, "WARNING: ");                          \
 432          fprintf(stderr, fmt);                                  \
 433          _warned = true;                                        \
 434                                                                 \
 435          _mesa_gl_debug(ctx, &msg_id,                           \
 436                         MESA_DEBUG_TYPE_OTHER,                  \
 437                         MESA_DEBUG_SEVERITY_HIGH, fmt);         \
 438       }                                                         \
 439    }                                                            \
 440 } while (0)
 441
 442 #define PCI_CHIP_845_G                  0x2562
 443 #define PCI_CHIP_I830_M                 0x3577
 444 #define PCI_CHIP_I855_GM                0x3582
 445 #define PCI_CHIP_I865_G                 0x2572
 446 #define PCI_CHIP_I915_G                 0x2582
 447 #define PCI_CHIP_I915_GM                0x2592
 448 #define PCI_CHIP_I945_G                 0x2772
 449 #define PCI_CHIP_I945_GM                0x27A2
 450 #define PCI_CHIP_I945_GME               0x27AE
 451 #define PCI_CHIP_G33_G                  0x29C2
 452 #define PCI_CHIP_Q35_G                  0x29B2
 453 #define PCI_CHIP_Q33_G                  0x29D2
 454
 455
 456 /* ================================================================
 457  * intel_context.c:
 458  */
 459
 460 extern bool intelInitContext(struct intel_context *intel,
 461                              int api,
 462                              unsigned major_version,
 463                              unsigned minor_version,
 464                              const struct gl_config * mesaVis,
 465                              __DRIcontext * driContextPriv,
 466                              void *sharedContextPrivate,
 467                              struct dd_function_table *functions,
 468                              unsigned *dri_ctx_error);
 469
 470 extern void intelFinish(struct gl_context * ctx);
 471 extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
 472 extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
 473
 474 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
 475
 476 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 477
 478 void intel_init_syncobj_functions(struct dd_function_table *functions);
 479
 480
 481 /* ================================================================
 482  * intel_state.c:
 483  */
 484
 485 #define COMPAREFUNC_ALWAYS              0
 486 #define COMPAREFUNC_NEVER               0x1
 487 #define COMPAREFUNC_LESS                0x2
 488 #define COMPAREFUNC_EQUAL               0x3
 489 #define COMPAREFUNC_LEQUAL              0x4
 490 #define COMPAREFUNC_GREATER             0x5
 491 #define COMPAREFUNC_NOTEQUAL            0x6
 492 #define COMPAREFUNC_GEQUAL              0x7
 493
 494 #define STENCILOP_KEEP                  0
 495 #define STENCILOP_ZERO                  0x1
 496 #define STENCILOP_REPLACE               0x2
 497 #define STENCILOP_INCRSAT               0x3
 498 #define STENCILOP_DECRSAT               0x4
 499 #define STENCILOP_INCR                  0x5
 500 #define STENCILOP_DECR                  0x6
 501 #define STENCILOP_INVERT                0x7
 502
 503 #define LOGICOP_CLEAR                   0
 504 #define LOGICOP_NOR                     0x1
 505 #define LOGICOP_AND_INV                 0x2
 506 #define LOGICOP_COPY_INV                0x3
 507 #define LOGICOP_AND_RVRSE               0x4
 508 #define LOGICOP_INV                     0x5
 509 #define LOGICOP_XOR                     0x6
 510 #define LOGICOP_NAND                    0x7
 511 #define LOGICOP_AND                     0x8
 512 #define LOGICOP_EQUIV                   0x9
 513 #define LOGICOP_NOOP                    0xa
 514 #define LOGICOP_OR_INV                  0xb
 515 #define LOGICOP_COPY                    0xc
 516 #define LOGICOP_OR_RVRSE                0xd
 517 #define LOGICOP_OR                      0xe
 518 #define LOGICOP_SET                     0xf
 519
 520 #define BLENDFACT_ZERO                  0x01
 521 #define BLENDFACT_ONE                   0x02
 522 #define BLENDFACT_SRC_COLR              0x03
 523 #define BLENDFACT_INV_SRC_COLR          0x04
 524 #define BLENDFACT_SRC_ALPHA             0x05
 525 #define BLENDFACT_INV_SRC_ALPHA         0x06
 526 #define BLENDFACT_DST_ALPHA             0x07
 527 #define BLENDFACT_INV_DST_ALPHA         0x08
 528 #define BLENDFACT_DST_COLR              0x09
 529 #define BLENDFACT_INV_DST_COLR          0x0a
 530 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 531 #define BLENDFACT_CONST_COLOR           0x0c
 532 #define BLENDFACT_INV_CONST_COLOR       0x0d
 533 #define BLENDFACT_CONST_ALPHA           0x0e
 534 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 535 #define BLENDFACT_MASK                  0x0f
 536
 537 enum {
 538    DRI_CONF_BO_REUSE_DISABLED,
 539    DRI_CONF_BO_REUSE_ALL
 540 };
 541
 542 extern int intel_translate_shadow_compare_func(GLenum func);
 543 extern int intel_translate_compare_func(GLenum func);
 544 extern int intel_translate_stencil_op(GLenum op);
 545 extern int intel_translate_blend_factor(GLenum factor);
 546 extern int intel_translate_logic_op(GLenum opcode);
 547
 548 void intel_update_renderbuffers(__DRIcontext *context,
 549                                 __DRIdrawable *drawable);
 550 void intel_prepare_render(struct intel_context *intel);
 551
 552 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 553                                   uint32_t buffer_id);
 554 void intel_init_texture_formats(struct gl_context *ctx);
 555
 556 /*======================================================================
 557  * Inline conversion functions.
 558  * These are better-typed than the macros used previously:
 559  */
 560 static INLINE struct intel_context *
 561 intel_context(struct gl_context * ctx)
 562 {
 563    return (struct intel_context *) ctx;
 564 }
 565
 566 static INLINE bool
 567 is_power_of_two(uint32_t value)
 568 {
 569    return (value & (value - 1)) == 0;
 570 }
 571
 572 #ifdef __cplusplus
 573 }
 574 #endif
 575
 576 #endif