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 intel_batchbuffer {
 118    /** Current batchbuffer being queued up. */
 119    drm_intel_bo *bo;
 120    /** Last BO submitted to the hardware.  Used for glFinish(). */
 121    drm_intel_bo *last_bo;
 122
 123    uint16_t emit, total;
 124    uint16_t used, reserved_space;
 125    uint32_t *map;
 126    uint32_t *cpu_map;
 127 #define BATCH_SZ (8192*sizeof(uint32_t))
 128 };
 129
 130 /**
 131  * intel_context is derived from Mesa's context class: struct gl_context.
 132  */
 133 struct intel_context
 134 {
 135    struct gl_context ctx;  /**< base class, must be first field */
 136
 137    struct
 138    {
 139       void (*destroy) (struct intel_context * intel);
 140       void (*emit_state) (struct intel_context * intel);
 141       void (*finish_batch) (struct intel_context * intel);
 142       void (*new_batch) (struct intel_context * intel);
 143       void (*emit_invarient_state) (struct intel_context * intel);
 144       void (*update_texture_state) (struct intel_context * intel);
 145
 146       void (*render_start) (struct intel_context * intel);
 147       void (*render_prevalidate) (struct intel_context * intel);
 148       void (*set_draw_region) (struct intel_context * intel,
 149                                struct intel_region * draw_regions[],
 150                                struct intel_region * depth_region,
 151                                GLuint num_regions);
 152       void (*update_draw_buffer)(struct intel_context *intel);
 153
 154       void (*reduced_primitive_state) (struct intel_context * intel,
 155                                        GLenum rprim);
 156
 157       bool (*check_vertex_size) (struct intel_context * intel,
 158                                       GLuint expected);
 159       void (*invalidate_state) (struct intel_context *intel,
 160                                 GLuint new_state);
 161
 162       void (*assert_not_dirty) (struct intel_context *intel);
 163
 164       void (*debug_batch)(struct intel_context *intel);
 165       void (*annotate_aub)(struct intel_context *intel);
 166       bool (*render_target_supported)(struct intel_context *intel,
 167                                       struct gl_renderbuffer *rb);
 168    } vtbl;
 169
 170    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 171    GLuint NewGLState;
 172
 173    dri_bufmgr *bufmgr;
 174    unsigned int maxBatchSize;
 175
 176    /**
 177     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 178     */
 179    int gen;
 180    bool is_945;
 181    bool has_swizzling;
 182
 183    struct intel_batchbuffer batch;
 184
 185    drm_intel_bo *first_post_swapbuffers_batch;
 186    bool need_throttle;
 187    bool no_batch_wrap;
 188    bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
 189
 190    /**
 191     * Set if we're either a debug context or the INTEL_DEBUG=perf environment
 192     * variable is set, this is the flag indicating to do expensive work that
 193     * might lead to a perf_debug() call.
 194     */
 195    bool perf_debug;
 196
 197    struct
 198    {
 199       GLuint id;
 200       uint32_t start_ptr; /**< for i8xx */
 201       uint32_t primitive;       /**< Current hardware primitive type */
 202       void (*flush) (struct intel_context *);
 203       drm_intel_bo *vb_bo;
 204       uint8_t *vb;
 205       unsigned int start_offset; /**< Byte offset of primitive sequence */
 206       unsigned int current_offset; /**< Byte offset of next vertex */
 207       unsigned int count;       /**< Number of vertices in current primitive */
 208    } prim;
 209
 210    struct {
 211       drm_intel_bo *bo;
 212       GLuint offset;
 213       uint32_t buffer_len;
 214       uint32_t buffer_offset;
 215       char buffer[4096];
 216    } upload;
 217
 218    uint32_t max_gtt_map_object_size;
 219
 220    /* Offsets of fields within the current vertex:
 221     */
 222    GLuint coloroffset;
 223    GLuint specoffset;
 224    GLuint wpos_offset;
 225
 226    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 227    GLuint vertex_attr_count;
 228
 229    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 230
 231    bool hw_stencil;
 232    bool hw_stipple;
 233    bool no_rast;
 234    bool always_flush_batch;
 235    bool always_flush_cache;
 236    bool disable_throttling;
 237
 238    /* State for intelvb.c and inteltris.c.
 239     */
 240    GLuint RenderIndex;
 241    GLmatrix ViewportMatrix;
 242    GLenum render_primitive;
 243    GLenum reduced_primitive; /*< Only gen < 6 */
 244    GLuint vertex_size;
 245    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 246
 247    /* Fallback rasterization functions
 248     */
 249    intel_point_func draw_point;
 250    intel_line_func draw_line;
 251    intel_tri_func draw_tri;
 252
 253    /**
 254     * Set if rendering has occured to the drawable's front buffer.
 255     *
 256     * This is used in the DRI2 case to detect that glFlush should also copy
 257     * the contents of the fake front buffer to the real front buffer.
 258     */
 259    bool front_buffer_dirty;
 260
 261    /**
 262     * Track whether front-buffer rendering is currently enabled
 263     *
 264     * A separate flag is used to track this in order to support MRT more
 265     * easily.
 266     */
 267    bool is_front_buffer_rendering;
 268    /**
 269     * Track whether front-buffer is the current read target.
 270     *
 271     * This is closely associated with is_front_buffer_rendering, but may
 272     * be set separately.  The DRI2 fake front buffer must be referenced
 273     * either way.
 274     */
 275    bool is_front_buffer_reading;
 276
 277    bool use_early_z;
 278
 279    int driFd;
 280
 281    __DRIcontext *driContext;
 282    struct intel_screen *intelScreen;
 283    void (*saved_viewport)(struct gl_context * ctx,
 284                           GLint x, GLint y, GLsizei width, GLsizei height);
 285
 286    /**
 287     * Configuration cache
 288     */
 289    driOptionCache optionCache;
 290 };
 291
 292 extern char *__progname;
 293
 294
 295 #define SUBPIXEL_X 0.125
 296 #define SUBPIXEL_Y 0.125
 297
 298 /**
 299  * Align a value down to an alignment value
 300  *
 301  * If \c value is not already aligned to the requested alignment value, it
 302  * will be rounded down.
 303  *
 304  * \param value  Value to be rounded
 305  * \param alignment  Alignment value to be used.  This must be a power of two.
 306  *
 307  * \sa ALIGN()
 308  */
 309 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
 310
 311 static INLINE uint32_t
 312 U_FIXED(float value, uint32_t frac_bits)
 313 {
 314    value *= (1 << frac_bits);
 315    return value < 0 ? 0 : value;
 316 }
 317
 318 static INLINE uint32_t
 319 S_FIXED(float value, uint32_t frac_bits)
 320 {
 321    return value * (1 << frac_bits);
 322 }
 323
 324 #define INTEL_FIREVERTICES(intel)               \
 325 do {                                            \
 326    if ((intel)->prim.flush)                     \
 327       (intel)->prim.flush(intel);               \
 328 } while (0)
 329
 330 /* ================================================================
 331  * From linux kernel i386 header files, copes with odd sizes better
 332  * than COPY_DWORDS would:
 333  * XXX Put this in src/mesa/main/imports.h ???
 334  */
 335 #if defined(i386) || defined(__i386__)
 336 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 337 {
 338    int d0, d1, d2;
 339    __asm__ __volatile__(
 340       "rep ; movsl\n\t"
 341       "testb $2,%b4\n\t"
 342       "je 1f\n\t"
 343       "movsw\n"
 344       "1:\ttestb $1,%b4\n\t"
 345       "je 2f\n\t"
 346       "movsb\n"
 347       "2:"
 348       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 349       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 350       : "memory");
 351    return (to);
 352 }
 353 #else
 354 #define __memcpy(a,b,c) memcpy(a,b,c)
 355 #endif
 356
 357
 358 /* ================================================================
 359  * Debugging:
 360  */
 361 extern int INTEL_DEBUG;
 362
 363 #define DEBUG_TEXTURE   0x1
 364 #define DEBUG_STATE     0x2
 365 #define DEBUG_BLIT      0x8
 366 #define DEBUG_MIPTREE   0x10
 367 #define DEBUG_PERF      0x20
 368 #define DEBUG_BATCH     0x80
 369 #define DEBUG_PIXEL     0x100
 370 #define DEBUG_BUFMGR    0x200
 371 #define DEBUG_REGION    0x400
 372 #define DEBUG_FBO       0x800
 373 #define DEBUG_SYNC      0x2000
 374 #define DEBUG_DRI       0x10000
 375 #define DEBUG_STATS     0x100000
 376 #define DEBUG_WM        0x400000
 377 #define DEBUG_AUB       0x4000000
 378
 379 #ifdef HAVE_ANDROID_PLATFORM
 380 #define LOG_TAG "INTEL-MESA"
 381 #include <cutils/log.h>
 382 #ifndef ALOGW
 383 #define ALOGW LOGW
 384 #endif
 385 #define dbg_printf(...) ALOGW(__VA_ARGS__)
 386 #else
 387 #define dbg_printf(...) printf(__VA_ARGS__)
 388 #endif /* HAVE_ANDROID_PLATFORM */
 389
 390 #define DBG(...) do {                                           \
 391         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 392                 dbg_printf(__VA_ARGS__);                        \
 393 } while(0)
 394
 395 #define perf_debug(...) do {                                    \
 396    static GLuint msg_id = 0;                                    \
 397    if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
 398       dbg_printf(__VA_ARGS__);                                  \
 399    if (intel->perf_debug)                                       \
 400       _mesa_gl_debug(&intel->ctx, &msg_id,                      \
 401                      MESA_DEBUG_TYPE_PERFORMANCE,               \
 402                      MESA_DEBUG_SEVERITY_MEDIUM,                \
 403                      __VA_ARGS__);                              \
 404 } while(0)
 405
 406 #define WARN_ONCE(cond, fmt...) do {                            \
 407    if (unlikely(cond)) {                                        \
 408       static bool _warned = false;                              \
 409       static GLuint msg_id = 0;                                 \
 410       if (!_warned) {                                           \
 411          fprintf(stderr, "WARNING: ");                          \
 412          fprintf(stderr, fmt);                                  \
 413          _warned = true;                                        \
 414                                                                 \
 415          _mesa_gl_debug(ctx, &msg_id,                           \
 416                         MESA_DEBUG_TYPE_OTHER,                  \
 417                         MESA_DEBUG_SEVERITY_HIGH, fmt);         \
 418       }                                                         \
 419    }                                                            \
 420 } while (0)
 421
 422 #define PCI_CHIP_845_G                  0x2562
 423 #define PCI_CHIP_I830_M                 0x3577
 424 #define PCI_CHIP_I855_GM                0x3582
 425 #define PCI_CHIP_I865_G                 0x2572
 426 #define PCI_CHIP_I915_G                 0x2582
 427 #define PCI_CHIP_I915_GM                0x2592
 428 #define PCI_CHIP_I945_G                 0x2772
 429 #define PCI_CHIP_I945_GM                0x27A2
 430 #define PCI_CHIP_I945_GME               0x27AE
 431 #define PCI_CHIP_G33_G                  0x29C2
 432 #define PCI_CHIP_Q35_G                  0x29B2
 433 #define PCI_CHIP_Q33_G                  0x29D2
 434
 435
 436 /* ================================================================
 437  * intel_context.c:
 438  */
 439
 440 extern bool intelInitContext(struct intel_context *intel,
 441                              int api,
 442                              unsigned major_version,
 443                              unsigned minor_version,
 444                              const struct gl_config * mesaVis,
 445                              __DRIcontext * driContextPriv,
 446                              void *sharedContextPrivate,
 447                              struct dd_function_table *functions,
 448                              unsigned *dri_ctx_error);
 449
 450 extern void intelFinish(struct gl_context * ctx);
 451 extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
 452 extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
 453
 454 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
 455
 456 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 457
 458 void intel_init_syncobj_functions(struct dd_function_table *functions);
 459
 460
 461 /* ================================================================
 462  * intel_state.c:
 463  */
 464
 465 #define COMPAREFUNC_ALWAYS              0
 466 #define COMPAREFUNC_NEVER               0x1
 467 #define COMPAREFUNC_LESS                0x2
 468 #define COMPAREFUNC_EQUAL               0x3
 469 #define COMPAREFUNC_LEQUAL              0x4
 470 #define COMPAREFUNC_GREATER             0x5
 471 #define COMPAREFUNC_NOTEQUAL            0x6
 472 #define COMPAREFUNC_GEQUAL              0x7
 473
 474 #define STENCILOP_KEEP                  0
 475 #define STENCILOP_ZERO                  0x1
 476 #define STENCILOP_REPLACE               0x2
 477 #define STENCILOP_INCRSAT               0x3
 478 #define STENCILOP_DECRSAT               0x4
 479 #define STENCILOP_INCR                  0x5
 480 #define STENCILOP_DECR                  0x6
 481 #define STENCILOP_INVERT                0x7
 482
 483 #define LOGICOP_CLEAR                   0
 484 #define LOGICOP_NOR                     0x1
 485 #define LOGICOP_AND_INV                 0x2
 486 #define LOGICOP_COPY_INV                0x3
 487 #define LOGICOP_AND_RVRSE               0x4
 488 #define LOGICOP_INV                     0x5
 489 #define LOGICOP_XOR                     0x6
 490 #define LOGICOP_NAND                    0x7
 491 #define LOGICOP_AND                     0x8
 492 #define LOGICOP_EQUIV                   0x9
 493 #define LOGICOP_NOOP                    0xa
 494 #define LOGICOP_OR_INV                  0xb
 495 #define LOGICOP_COPY                    0xc
 496 #define LOGICOP_OR_RVRSE                0xd
 497 #define LOGICOP_OR                      0xe
 498 #define LOGICOP_SET                     0xf
 499
 500 #define BLENDFACT_ZERO                  0x01
 501 #define BLENDFACT_ONE                   0x02
 502 #define BLENDFACT_SRC_COLR              0x03
 503 #define BLENDFACT_INV_SRC_COLR          0x04
 504 #define BLENDFACT_SRC_ALPHA             0x05
 505 #define BLENDFACT_INV_SRC_ALPHA         0x06
 506 #define BLENDFACT_DST_ALPHA             0x07
 507 #define BLENDFACT_INV_DST_ALPHA         0x08
 508 #define BLENDFACT_DST_COLR              0x09
 509 #define BLENDFACT_INV_DST_COLR          0x0a
 510 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 511 #define BLENDFACT_CONST_COLOR           0x0c
 512 #define BLENDFACT_INV_CONST_COLOR       0x0d
 513 #define BLENDFACT_CONST_ALPHA           0x0e
 514 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 515 #define BLENDFACT_MASK                  0x0f
 516
 517 enum {
 518    DRI_CONF_BO_REUSE_DISABLED,
 519    DRI_CONF_BO_REUSE_ALL
 520 };
 521
 522 extern int intel_translate_shadow_compare_func(GLenum func);
 523 extern int intel_translate_compare_func(GLenum func);
 524 extern int intel_translate_stencil_op(GLenum op);
 525 extern int intel_translate_blend_factor(GLenum factor);
 526 extern int intel_translate_logic_op(GLenum opcode);
 527
 528 void intel_update_renderbuffers(__DRIcontext *context,
 529                                 __DRIdrawable *drawable);
 530 void intel_prepare_render(struct intel_context *intel);
 531
 532 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 533                                   uint32_t buffer_id);
 534 void intel_init_texture_formats(struct gl_context *ctx);
 535
 536 /*======================================================================
 537  * Inline conversion functions.
 538  * These are better-typed than the macros used previously:
 539  */
 540 static INLINE struct intel_context *
 541 intel_context(struct gl_context * ctx)
 542 {
 543    return (struct intel_context *) ctx;
 544 }
 545
 546 static INLINE bool
 547 is_power_of_two(uint32_t value)
 548 {
 549    return (value & (value - 1)) == 0;
 550 }
 551
 552 #ifdef __cplusplus
 553 }
 554 #endif
 555
 556 #endif