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
  33 #include "main/mtypes.h"
  34 #include "main/mm.h"
  35 #include "texmem.h"
  36 #include "dri_metaops.h"
  37 #include "drm.h"
  38 #include "intel_bufmgr.h"
  39
  40 #include "intel_screen.h"
  41 #include "intel_tex_obj.h"
  42 #include "i915_drm.h"
  43 #include "tnl/t_vertex.h"
  44
  45 #define TAG(x) intel##x
  46 #include "tnl_dd/t_dd_vertex.h"
  47 #undef TAG
  48
  49 #define DV_PF_555  (1<<8)
  50 #define DV_PF_565  (2<<8)
  51 #define DV_PF_8888 (3<<8)
  52 #define DV_PF_4444 (8<<8)
  53 #define DV_PF_1555 (9<<8)
  54
  55 struct intel_region;
  56 struct intel_context;
  57
  58 typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
  59                                 intelVertex *, intelVertex *);
  60 typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
  61                                  intelVertex *);
  62 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
  63
  64 /**
  65  * Bits for intel->Fallback field
  66  */
  67 /*@{*/
  68 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  69 #define INTEL_FALLBACK_READ_BUFFER       0x2
  70 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  71 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  72 #define INTEL_FALLBACK_USER              0x10
  73 #define INTEL_FALLBACK_RENDERMODE        0x20
  74 #define INTEL_FALLBACK_TEXTURE           0x40
  75 #define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
  76 /*@}*/
  77
  78 extern void intelFallback(struct intel_context *intel, GLbitfield bit,
  79                           GLboolean mode);
  80 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  81
  82
  83 #define INTEL_WRITE_PART  0x1
  84 #define INTEL_WRITE_FULL  0x2
  85 #define INTEL_READ        0x4
  86
  87 #define INTEL_MAX_FIXUP 64
  88
  89 struct intel_sync_object {
  90    struct gl_sync_object Base;
  91
  92    /** Batch associated with this sync object */
  93    drm_intel_bo *bo;
  94 };
  95
  96 /**
  97  * intel_context is derived from Mesa's context class: GLcontext.
  98  */
  99 struct intel_context
 100 {
 101    GLcontext ctx;  /**< base class, must be first field */
 102
 103    struct
 104    {
 105       void (*destroy) (struct intel_context * intel);
 106       void (*emit_state) (struct intel_context * intel);
 107       void (*finish_batch) (struct intel_context * intel);
 108       void (*new_batch) (struct intel_context * intel);
 109       void (*emit_invarient_state) (struct intel_context * intel);
 110       void (*note_fence) (struct intel_context *intel, GLuint fence);
 111       void (*update_texture_state) (struct intel_context * intel);
 112
 113       void (*render_start) (struct intel_context * intel);
 114       void (*render_prevalidate) (struct intel_context * intel);
 115       void (*set_draw_region) (struct intel_context * intel,
 116                                struct intel_region * draw_regions[],
 117                                struct intel_region * depth_region,
 118                                GLuint num_regions);
 119
 120       void (*reduced_primitive_state) (struct intel_context * intel,
 121                                        GLenum rprim);
 122
 123       GLboolean (*check_vertex_size) (struct intel_context * intel,
 124                                       GLuint expected);
 125       void (*invalidate_state) (struct intel_context *intel,
 126                                 GLuint new_state);
 127
 128
 129       /* Metaops:
 130        */
 131       void (*install_meta_state) (struct intel_context * intel);
 132       void (*leave_meta_state) (struct intel_context * intel);
 133
 134       void (*meta_draw_region) (struct intel_context * intel,
 135                                 struct intel_region * draw_region,
 136                                 struct intel_region * depth_region);
 137
 138       void (*meta_draw_quad)(struct intel_context *intel,
 139                              GLfloat x0, GLfloat x1,
 140                              GLfloat y0, GLfloat y1,
 141                              GLfloat z,
 142                              GLuint color, /* ARGB32 */
 143                              GLfloat s0, GLfloat s1,
 144                              GLfloat t0, GLfloat t1);
 145
 146       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 147
 148       void (*meta_stencil_replace) (struct intel_context * intel,
 149                                     GLuint mask, GLuint clear);
 150
 151       void (*meta_depth_replace) (struct intel_context * intel);
 152
 153       void (*meta_texture_blend_replace) (struct intel_context * intel);
 154
 155       void (*meta_no_stencil_write) (struct intel_context * intel);
 156       void (*meta_no_depth_write) (struct intel_context * intel);
 157       void (*meta_no_texture) (struct intel_context * intel);
 158
 159       void (*meta_import_pixel_state) (struct intel_context * intel);
 160       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 161                                          GLint xoff, GLint yoff);
 162
 163       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 164                                         dri_bo * buffer,
 165                                         GLuint offset,
 166                                         GLuint pitch,
 167                                         GLuint height,
 168                                         GLenum format, GLenum type);
 169
 170       void (*assert_not_dirty) (struct intel_context *intel);
 171
 172       void (*debug_batch)(struct intel_context *intel);
 173    } vtbl;
 174
 175    struct dri_metaops meta;
 176
 177    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 178    GLuint NewGLState;
 179
 180    dri_bufmgr *bufmgr;
 181    unsigned int maxBatchSize;
 182
 183    /**
 184     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 185     */
 186    int gen;
 187
 188    struct intel_region *front_region;
 189    struct intel_region *back_region;
 190    struct intel_region *depth_region;
 191
 192    /**
 193     * This value indicates that the kernel memory manager is being used
 194     * instead of the fake client-side memory manager.
 195     */
 196    GLboolean ttm;
 197
 198    struct intel_batchbuffer *batch;
 199    drm_intel_bo *first_post_swapbuffers_batch;
 200    GLboolean no_batch_wrap;
 201
 202    struct
 203    {
 204       GLuint id;
 205       uint32_t primitive;       /**< Current hardware primitive type */
 206       void (*flush) (struct intel_context *);
 207       GLubyte *start_ptr; /**< for i8xx */
 208       dri_bo *vb_bo;
 209       uint8_t *vb;
 210       unsigned int start_offset; /**< Byte offset of primitive sequence */
 211       unsigned int current_offset; /**< Byte offset of next vertex */
 212       unsigned int count;       /**< Number of vertices in current primitive */
 213    } prim;
 214
 215    GLuint stats_wm;
 216    GLboolean locked;
 217    char *prevLockFile;
 218    int prevLockLine;
 219
 220    GLuint ClearColor565;
 221    GLuint ClearColor8888;
 222
 223
 224    /* Offsets of fields within the current vertex:
 225     */
 226    GLuint coloroffset;
 227    GLuint specoffset;
 228    GLuint wpos_offset;
 229    GLuint wpos_size;
 230
 231    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 232    GLuint vertex_attr_count;
 233
 234    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 235
 236    GLboolean hw_stencil;
 237    GLboolean hw_stipple;
 238    GLboolean depth_buffer_is_float;
 239    GLboolean no_rast;
 240    GLboolean always_flush_batch;
 241    GLboolean always_flush_cache;
 242
 243    /* 0 - nonconformant, best performance;
 244     * 1 - fallback to sw for known conformance bugs
 245     * 2 - always fallback to sw
 246     */
 247    GLuint conformance_mode;
 248
 249    /* State for intelvb.c and inteltris.c.
 250     */
 251    GLuint RenderIndex;
 252    GLmatrix ViewportMatrix;
 253    GLenum render_primitive;
 254    GLenum reduced_primitive;
 255    GLuint vertex_size;
 256    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 257
 258    /* Fallback rasterization functions
 259     */
 260    intel_point_func draw_point;
 261    intel_line_func draw_line;
 262    intel_tri_func draw_tri;
 263
 264    /**
 265     * Set to true if a single constant cliprect should be used in the
 266     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 267     * flush time while the lock is held.
 268     */
 269    GLboolean constant_cliprect;
 270
 271    /**
 272     * In !constant_cliprect mode, set to true if the front cliprects should be
 273     * used instead of back.
 274     */
 275    GLboolean front_cliprects;
 276
 277    /**
 278     * Set if rendering has occured to the drawable's front buffer.
 279     *
 280     * This is used in the DRI2 case to detect that glFlush should also copy
 281     * the contents of the fake front buffer to the real front buffer.
 282     */
 283    GLboolean front_buffer_dirty;
 284
 285    /**
 286     * Track whether front-buffer rendering is currently enabled
 287     *
 288     * A separate flag is used to track this in order to support MRT more
 289     * easily.
 290     */
 291    GLboolean is_front_buffer_rendering;
 292    /**
 293     * Track whether front-buffer is the current read target.
 294     *
 295     * This is closely associated with is_front_buffer_rendering, but may
 296     * be set separately.  The DRI2 fake front buffer must be referenced
 297     * either way.
 298     */
 299    GLboolean is_front_buffer_reading;
 300
 301    GLboolean use_texture_tiling;
 302    GLboolean use_early_z;
 303    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 304
 305    int perf_boxes;
 306
 307    GLuint do_usleeps;
 308    int do_irqs;
 309    GLuint irqsEmitted;
 310
 311    GLboolean scissor;
 312    drm_clip_rect_t draw_rect;
 313    drm_clip_rect_t scissor_rect;
 314
 315    drm_context_t hHWContext;
 316    drmLock *driHwLock;
 317    int driFd;
 318
 319    __DRIcontextPrivate *driContext;
 320    __DRIdrawablePrivate *driDrawable;
 321    __DRIdrawablePrivate *driReadDrawable;
 322    __DRIscreenPrivate *driScreen;
 323    intelScreenPrivate *intelScreen;
 324    volatile drm_i915_sarea_t *sarea;
 325
 326    GLuint lastStamp;
 327
 328    GLboolean no_hw;
 329
 330    /**
 331     * Configuration cache
 332     */
 333    driOptionCache optionCache;
 334
 335    int64_t swap_ust;
 336    int64_t swap_missed_ust;
 337
 338    GLuint swap_count;
 339    GLuint swap_missed_count;
 340 };
 341
 342 /* These are functions now:
 343  */
 344 void LOCK_HARDWARE( struct intel_context *intel );
 345 void UNLOCK_HARDWARE( struct intel_context *intel );
 346
 347 extern char *__progname;
 348
 349
 350 #define SUBPIXEL_X 0.125
 351 #define SUBPIXEL_Y 0.125
 352
 353 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 354 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 355 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 356
 357 static inline uint32_t
 358 U_FIXED(float value, uint32_t frac_bits)
 359 {
 360    value *= (1 << frac_bits);
 361    return value < 0 ? 0 : value;
 362 }
 363
 364 static inline uint32_t
 365 S_FIXED(float value, uint32_t frac_bits)
 366 {
 367    return value * (1 << frac_bits);
 368 }
 369
 370 #define INTEL_FIREVERTICES(intel)               \
 371 do {                                            \
 372    if ((intel)->prim.flush)                     \
 373       (intel)->prim.flush(intel);               \
 374 } while (0)
 375
 376 /* ================================================================
 377  * Color packing:
 378  */
 379
 380 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 381   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 382
 383 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 384   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 385     ((a) ? 0x8000 : 0))
 386
 387 #define INTEL_PACKCOLOR565(r,g,b) \
 388   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 389
 390 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 391   ((a<<24) | (r<<16) | (g<<8) | b)
 392
 393 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 394 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 395  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 396   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 397    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_FALLBACKS 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_LOCK      0x1000
 445 #define DEBUG_SYNC      0x2000
 446 #define DEBUG_PRIMS     0x4000
 447 #define DEBUG_VERTS     0x8000
 448 #define DEBUG_DRI       0x10000
 449 #define DEBUG_DMA       0x20000
 450 #define DEBUG_SANITY    0x40000
 451 #define DEBUG_SLEEP     0x80000
 452 #define DEBUG_STATS     0x100000
 453 #define DEBUG_TILE      0x200000
 454 #define DEBUG_SINGLE_THREAD   0x400000
 455 #define DEBUG_WM        0x800000
 456 #define DEBUG_URB       0x1000000
 457 #define DEBUG_VS        0x2000000
 458
 459 #define DBG(...) do {                                           \
 460         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 461                 _mesa_printf(__VA_ARGS__);                      \
 462 } while(0)
 463
 464 #define PCI_CHIP_845_G                  0x2562
 465 #define PCI_CHIP_I830_M                 0x3577
 466 #define PCI_CHIP_I855_GM                0x3582
 467 #define PCI_CHIP_I865_G                 0x2572
 468 #define PCI_CHIP_I915_G                 0x2582
 469 #define PCI_CHIP_I915_GM                0x2592
 470 #define PCI_CHIP_I945_G                 0x2772
 471 #define PCI_CHIP_I945_GM                0x27A2
 472 #define PCI_CHIP_I945_GME               0x27AE
 473 #define PCI_CHIP_G33_G                  0x29C2
 474 #define PCI_CHIP_Q35_G                  0x29B2
 475 #define PCI_CHIP_Q33_G                  0x29D2
 476
 477
 478 /* ================================================================
 479  * intel_context.c:
 480  */
 481
 482 extern GLboolean intelInitContext(struct intel_context *intel,
 483                                   const __GLcontextModes * mesaVis,
 484                                   __DRIcontextPrivate * driContextPriv,
 485                                   void *sharedContextPrivate,
 486                                   struct dd_function_table *functions);
 487
 488 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 489
 490 extern void intelFinish(GLcontext * ctx);
 491 extern void intelFlush(GLcontext * ctx);
 492
 493 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 494
 495 void intel_init_syncobj_functions(struct dd_function_table *functions);
 496
 497
 498 /* ================================================================
 499  * intel_state.c:
 500  */
 501 extern void intelInitStateFuncs(struct dd_function_table *functions);
 502
 503 #define COMPAREFUNC_ALWAYS              0
 504 #define COMPAREFUNC_NEVER               0x1
 505 #define COMPAREFUNC_LESS                0x2
 506 #define COMPAREFUNC_EQUAL               0x3
 507 #define COMPAREFUNC_LEQUAL              0x4
 508 #define COMPAREFUNC_GREATER             0x5
 509 #define COMPAREFUNC_NOTEQUAL            0x6
 510 #define COMPAREFUNC_GEQUAL              0x7
 511
 512 #define STENCILOP_KEEP                  0
 513 #define STENCILOP_ZERO                  0x1
 514 #define STENCILOP_REPLACE               0x2
 515 #define STENCILOP_INCRSAT               0x3
 516 #define STENCILOP_DECRSAT               0x4
 517 #define STENCILOP_INCR                  0x5
 518 #define STENCILOP_DECR                  0x6
 519 #define STENCILOP_INVERT                0x7
 520
 521 #define LOGICOP_CLEAR                   0
 522 #define LOGICOP_NOR                     0x1
 523 #define LOGICOP_AND_INV                 0x2
 524 #define LOGICOP_COPY_INV                0x3
 525 #define LOGICOP_AND_RVRSE               0x4
 526 #define LOGICOP_INV                     0x5
 527 #define LOGICOP_XOR                     0x6
 528 #define LOGICOP_NAND                    0x7
 529 #define LOGICOP_AND                     0x8
 530 #define LOGICOP_EQUIV                   0x9
 531 #define LOGICOP_NOOP                    0xa
 532 #define LOGICOP_OR_INV                  0xb
 533 #define LOGICOP_COPY                    0xc
 534 #define LOGICOP_OR_RVRSE                0xd
 535 #define LOGICOP_OR                      0xe
 536 #define LOGICOP_SET                     0xf
 537
 538 #define BLENDFACT_ZERO                  0x01
 539 #define BLENDFACT_ONE                   0x02
 540 #define BLENDFACT_SRC_COLR              0x03
 541 #define BLENDFACT_INV_SRC_COLR          0x04
 542 #define BLENDFACT_SRC_ALPHA             0x05
 543 #define BLENDFACT_INV_SRC_ALPHA         0x06
 544 #define BLENDFACT_DST_ALPHA             0x07
 545 #define BLENDFACT_INV_DST_ALPHA         0x08
 546 #define BLENDFACT_DST_COLR              0x09
 547 #define BLENDFACT_INV_DST_COLR          0x0a
 548 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 549 #define BLENDFACT_CONST_COLOR           0x0c
 550 #define BLENDFACT_INV_CONST_COLOR       0x0d
 551 #define BLENDFACT_CONST_ALPHA           0x0e
 552 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 553 #define BLENDFACT_MASK                  0x0f
 554
 555 enum {
 556    DRI_CONF_BO_REUSE_DISABLED,
 557    DRI_CONF_BO_REUSE_ALL
 558 };
 559
 560 extern int intel_translate_shadow_compare_func(GLenum func);
 561 extern int intel_translate_compare_func(GLenum func);
 562 extern int intel_translate_stencil_op(GLenum op);
 563 extern int intel_translate_blend_factor(GLenum factor);
 564 extern int intel_translate_logic_op(GLenum opcode);
 565
 566 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 567                     GLsizei width, GLsizei height);
 568
 569 void intel_update_renderbuffers(__DRIcontext *context,
 570                                 __DRIdrawable *drawable);
 571
 572 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 573                                   uint32_t buffer_id);
 574
 575 /*======================================================================
 576  * Inline conversion functions.
 577  * These are better-typed than the macros used previously:
 578  */
 579 static INLINE struct intel_context *
 580 intel_context(GLcontext * ctx)
 581 {
 582    return (struct intel_context *) ctx;
 583 }
 584
 585 static INLINE GLboolean
 586 is_power_of_two(uint32_t value)
 587 {
 588    return (value & (value - 1)) == 0;
 589 }
 590
 591 static inline void
 592 intel_bo_map_gtt_preferred(struct intel_context *intel,
 593                            drm_intel_bo *bo,
 594                            GLboolean write)
 595 {
 596    if (intel->intelScreen->kernel_exec_fencing)
 597       drm_intel_gem_bo_map_gtt(bo);
 598    else
 599       drm_intel_bo_map(bo, write);
 600 }
 601
 602 static inline void
 603 intel_bo_unmap_gtt_preferred(struct intel_context *intel,
 604                              drm_intel_bo *bo)
 605 {
 606    if (intel->intelScreen->kernel_exec_fencing)
 607       drm_intel_gem_bo_unmap_gtt(bo);
 608    else
 609       drm_intel_bo_unmap(bo);
 610 }
 611
 612 #endif