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
  33 #include "mtypes.h"
  34 #include "drm.h"
  35 #include "mm.h"
  36 #include "texmem.h"
  37 #include "vblank.h"
  38
  39 #include "intel_screen.h"
  40 #include "i915_drm.h"
  41 #include "i830_common.h"
  42 #include "tnl/t_vertex.h"
  43
  44 #define TAG(x) intel##x
  45 #include "tnl_dd/t_dd_vertex.h"
  46 #undef TAG
  47
  48 #define DV_PF_555  (1<<8)
  49 #define DV_PF_565  (2<<8)
  50 #define DV_PF_8888 (3<<8)
  51
  52 #define INTEL_CONTEXT(ctx)      ((intelContextPtr)(ctx))
  53
  54 typedef struct intel_context intelContext;
  55 typedef struct intel_context *intelContextPtr;
  56 typedef struct intel_texture_object *intelTextureObjectPtr;
  57
  58 typedef void (*intel_tri_func)(intelContextPtr, intelVertex *, intelVertex *,
  59                                                           intelVertex *);
  60 typedef void (*intel_line_func)(intelContextPtr, intelVertex *, intelVertex *);
  61 typedef void (*intel_point_func)(intelContextPtr, intelVertex *);
  62
  63 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  64 #define INTEL_FALLBACK_READ_BUFFER       0x2
  65 #define INTEL_FALLBACK_USER              0x4
  66 #define INTEL_FALLBACK_NO_BATCHBUFFER    0x8
  67 #define INTEL_FALLBACK_NO_TEXMEM         0x10
  68 #define INTEL_FALLBACK_RENDERMODE        0x20
  69
  70 extern void intelFallback( intelContextPtr intel, GLuint bit, GLboolean mode );
  71 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  72
  73
  74 #define INTEL_TEX_MAXLEVELS 10
  75
  76
  77 struct intel_texture_object
  78 {
  79    driTextureObject    base;    /* the parent class */
  80
  81    GLuint texelBytes;
  82    GLuint age;
  83    GLuint Pitch;
  84    GLuint Height;
  85    GLuint TextureOffset;
  86    GLubyte *BufAddr;
  87
  88    GLuint min_level;
  89    GLuint max_level;
  90    GLuint depth_pitch;
  91
  92    struct {
  93       const struct gl_texture_image *image;
  94       GLuint offset;       /* into BufAddr */
  95       GLuint height;
  96       GLuint internalFormat;
  97    } image[6][INTEL_TEX_MAXLEVELS];
  98
  99    GLuint dirty;
 100    GLuint firstLevel,lastLevel;
 101 };
 102
 103
 104 struct intel_context
 105 {
 106    GLcontext ctx;               /* the parent class */
 107
 108    struct {
 109       void (*destroy)( intelContextPtr intel );
 110       void (*emit_state)( intelContextPtr intel );
 111       void (*lost_hardware)( intelContextPtr intel );
 112       void (*update_texture_state)( intelContextPtr intel );
 113
 114       void (*render_start)( intelContextPtr intel );
 115       void (*set_color_region)( intelContextPtr intel, const intelRegion *reg );
 116       void (*set_z_region)( intelContextPtr intel, const intelRegion *reg );
 117       void (*update_color_z_regions)(intelContextPtr intel,
 118                                      const intelRegion *colorRegion,
 119                                      const intelRegion *depthRegion);
 120       void (*emit_flush)( intelContextPtr intel );
 121       void (*reduced_primitive_state)( intelContextPtr intel, GLenum rprim );
 122
 123       GLboolean (*check_vertex_size)( intelContextPtr intel, GLuint expected );
 124
 125       void (*clear_with_tris)( intelContextPtr intel, GLbitfield mask,
 126                                GLboolean all,
 127                                GLint cx, GLint cy, GLint cw, GLint ch);
 128
 129       void (*rotate_window)( intelContextPtr intel,
 130                              __DRIdrawablePrivate *dPriv, GLuint srcBuf);
 131
 132       intelTextureObjectPtr (*alloc_tex_obj)( struct gl_texture_object *tObj );
 133
 134    } vtbl;
 135
 136    GLint refcount;
 137    GLuint Fallback;
 138    GLuint NewGLState;
 139
 140    struct {
 141       GLuint start_offset;
 142       GLint size;
 143       GLint space;
 144       GLubyte *ptr;
 145       GLuint counter;
 146       GLuint last_emit_state;
 147       GLboolean contains_geometry;
 148       const char *func;
 149       GLuint last_swap;
 150    } batch;
 151
 152    struct {
 153       void *ptr;
 154       GLint size;
 155       GLuint offset;
 156       GLuint active_buf;
 157       GLuint irq_emitted;
 158    } alloc;
 159
 160    struct {
 161       GLuint primitive;
 162       GLubyte *start_ptr;
 163       void (*flush)( GLcontext * );
 164    } prim;
 165
 166    GLboolean locked;
 167
 168    GLubyte clear_red;
 169    GLubyte clear_green;
 170    GLubyte clear_blue;
 171    GLubyte clear_alpha;
 172    GLuint ClearColor;
 173    GLuint ClearDepth;
 174
 175    GLuint coloroffset;
 176    GLuint specoffset;
 177
 178    /* Support for duplicating XYZW as WPOS parameter (crutch for I915).
 179     */
 180    GLuint wpos_offset;
 181    GLuint wpos_size;
 182
 183    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 184    GLuint vertex_attr_count;
 185
 186    GLfloat depth_scale;
 187    GLfloat polygon_offset_scale; /* dependent on depth_scale, bpp */
 188    GLuint depth_clear_mask;
 189    GLuint stencil_clear_mask;
 190
 191    GLboolean hw_stencil;
 192    GLboolean hw_stipple;
 193
 194    /* Texture object bookkeeping
 195     */
 196    GLuint                nr_heaps;
 197    driTexHeap          * texture_heaps[1];
 198    driTextureObject      swapped;
 199    GLuint                lastStamp;
 200
 201    struct intel_texture_object *CurrentTexObj[MAX_TEXTURE_UNITS];
 202
 203    /* State for intelvb.c and inteltris.c.
 204     */
 205    GLuint RenderIndex;
 206    GLmatrix ViewportMatrix;
 207    GLenum render_primitive;
 208    GLenum reduced_primitive;
 209    GLuint vertex_size;
 210    unsigned char *verts;           /* points to tnl->clipspace.vertex_buf */
 211
 212
 213    /* Fallback rasterization functions
 214     */
 215    intel_point_func draw_point;
 216    intel_line_func draw_line;
 217    intel_tri_func draw_tri;
 218
 219    /* Drawing buffer state
 220     */
 221    intelRegion *drawRegion;  /* current drawing buffer */
 222    intelRegion *readRegion;  /* current reading buffer */
 223
 224    int drawX;                   /* origin of drawable in draw buffer */
 225    int drawY;
 226    GLuint numClipRects;         /* cliprects for that buffer */
 227    drm_clip_rect_t *pClipRects;
 228
 229    int dirtyAge;
 230    int perf_boxes;
 231
 232    GLuint do_usleeps;
 233    int do_irqs;
 234    GLuint irqsEmitted;
 235    drm_i915_irq_wait_t iw;
 236
 237    GLboolean scissor;
 238    drm_clip_rect_t draw_rect;
 239    drm_clip_rect_t scissor_rect;
 240
 241    drm_context_t hHWContext;
 242    drmLock *driHwLock;
 243    int driFd;
 244
 245    __DRIdrawablePrivate *driDrawable;
 246    __DRIscreenPrivate *driScreen;
 247    intelScreenPrivate *intelScreen;
 248    drmI830Sarea *sarea;
 249
 250    /**
 251     * Configuration cache
 252     */
 253    driOptionCache optionCache;
 254
 255    /* VBI
 256     */
 257    GLuint vbl_seq;
 258    GLuint vblank_flags;
 259
 260    int64_t swap_ust;
 261    int64_t swap_missed_ust;
 262
 263    GLuint swap_count;
 264    GLuint swap_missed_count;
 265
 266    GLuint swap_scheduled;
 267 };
 268
 269
 270 #define DEBUG_LOCKING   1
 271
 272 #if DEBUG_LOCKING
 273 extern char *prevLockFile;
 274 extern int prevLockLine;
 275
 276 #define DEBUG_LOCK()                                                    \
 277    do {                                                                 \
 278       prevLockFile = (__FILE__);                                        \
 279       prevLockLine = (__LINE__);                                        \
 280    } while (0)
 281
 282 #define DEBUG_RESET()                                                   \
 283    do {                                                                 \
 284       prevLockFile = 0;                                                 \
 285       prevLockLine = 0;                                                 \
 286    } while (0)
 287
 288 /* Slightly less broken way of detecting recursive locking in a
 289  * threaded environment.  The right way to do this would be to make
 290  * prevLockFile, prevLockLine thread-local.
 291  *
 292  * This technique instead checks to see if the same context is
 293  * requesting the lock twice -- this will not catch application
 294  * breakages where the same context is active in two different threads
 295  * at once, but it will catch driver breakages (recursive locking) in
 296  * threaded apps.
 297  */
 298 #define DEBUG_CHECK_LOCK()                                              \
 299    do {                                                                 \
 300       if ( *((volatile int *)intel->driHwLock) ==                       \
 301            (DRM_LOCK_HELD | intel->hHWContext) ) {                      \
 302          fprintf( stderr,                                               \
 303                   "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n",    \
 304                   prevLockFile, prevLockLine, __FILE__, __LINE__ );     \
 305          abort();                                                       \
 306       }                                                                 \
 307    } while (0)
 308
 309 #else
 310
 311 #define DEBUG_LOCK()
 312 #define DEBUG_RESET()
 313 #define DEBUG_CHECK_LOCK()
 314
 315 #endif
 316
 317
 318
 319
 320 /* Lock the hardware and validate our state.
 321  */
 322 #define LOCK_HARDWARE( intel )                          \
 323 do {                                                    \
 324     char __ret=0;                                       \
 325     DEBUG_CHECK_LOCK();                                 \
 326     assert(!(intel)->locked);                           \
 327     if ((intel)->swap_scheduled) {                      \
 328         drmVBlank vbl;                                  \
 329         vbl.request.type = DRM_VBLANK_ABSOLUTE;         \
 330         if ((intel)->vblank_flags &                     \
 331             VBLANK_FLAG_SECONDARY) {                    \
 332             vbl.request.type |= DRM_VBLANK_SECONDARY;   \
 333         }                                               \
 334         vbl.request.sequence = (intel)->vbl_seq;        \
 335         drmWaitVBlank((intel)->driFd, &vbl);            \
 336         (intel)->swap_scheduled = 0;                    \
 337     }                                                   \
 338     DRM_CAS((intel)->driHwLock, (intel)->hHWContext,    \
 339         (DRM_LOCK_HELD|(intel)->hHWContext), __ret);    \
 340     if (__ret)                                          \
 341         intelGetLock( (intel), 0 );                     \
 342       DEBUG_LOCK();                                     \
 343     (intel)->locked = 1;                                \
 344 }while (0)
 345
 346
 347   /* Unlock the hardware using the global current context
 348    */
 349 #define UNLOCK_HARDWARE(intel)                                          \
 350 do {                                                                    \
 351    intel->locked = 0;                                                   \
 352    if (0) {                                                             \
 353       intel->perf_boxes |= intel->sarea->perf_boxes;                    \
 354       intel->sarea->perf_boxes = 0;                                     \
 355    }                                                                    \
 356    DRM_UNLOCK((intel)->driFd, (intel)->driHwLock, (intel)->hHWContext); \
 357    DEBUG_RESET();                                                       \
 358 } while (0)
 359
 360
 361 #define SUBPIXEL_X 0.125
 362 #define SUBPIXEL_Y 0.125
 363
 364 #define INTEL_FIREVERTICES(intel)               \
 365 do {                                            \
 366    if ((intel)->prim.flush)                     \
 367       (intel)->prim.flush(&(intel)->ctx);               \
 368 } while (0)
 369
 370 /* ================================================================
 371  * Color packing:
 372  */
 373
 374 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 375   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 376
 377 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 378   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 379     ((a) ? 0x8000 : 0))
 380
 381 #define INTEL_PACKCOLOR565(r,g,b) \
 382   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 383
 384 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 385   ((a<<24) | (r<<16) | (g<<8) | b)
 386
 387
 388 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 389 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 390  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 391   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 392    0)))
 393
 394
 395
 396 /* ================================================================
 397  * From linux kernel i386 header files, copes with odd sizes better
 398  * than COPY_DWORDS would:
 399  */
 400 #if defined(i386) || defined(__i386__)
 401 static __inline__ void * __memcpy(void * to, const void * from, size_t n)
 402 {
 403    int d0, d1, d2;
 404    __asm__ __volatile__(
 405       "rep ; movsl\n\t"
 406       "testb $2,%b4\n\t"
 407       "je 1f\n\t"
 408       "movsw\n"
 409       "1:\ttestb $1,%b4\n\t"
 410       "je 2f\n\t"
 411       "movsb\n"
 412       "2:"
 413       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 414       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 415       : "memory");
 416    return (to);
 417 }
 418 #else
 419 #define __memcpy(a,b,c) memcpy(a,b,c)
 420 #endif
 421
 422
 423
 424 /* ================================================================
 425  * Debugging:
 426  */
 427 #define DO_DEBUG                1
 428 #if DO_DEBUG
 429 extern int INTEL_DEBUG;
 430 #else
 431 #define INTEL_DEBUG             0
 432 #endif
 433
 434 #define DEBUG_TEXTURE   0x1
 435 #define DEBUG_STATE     0x2
 436 #define DEBUG_IOCTL     0x4
 437 #define DEBUG_PRIMS     0x8
 438 #define DEBUG_VERTS     0x10
 439 #define DEBUG_FALLBACKS 0x20
 440 #define DEBUG_VERBOSE   0x40
 441 #define DEBUG_DRI       0x80
 442 #define DEBUG_DMA       0x100
 443 #define DEBUG_SANITY    0x200
 444 #define DEBUG_SYNC      0x400
 445 #define DEBUG_SLEEP     0x800
 446 #define DEBUG_PIXEL     0x1000
 447
 448
 449 #define PCI_CHIP_845_G                  0x2562
 450 #define PCI_CHIP_I830_M                 0x3577
 451 #define PCI_CHIP_I855_GM                0x3582
 452 #define PCI_CHIP_I865_G                 0x2572
 453 #define PCI_CHIP_I915_G                 0x2582
 454 #define PCI_CHIP_I915_GM                0x2592
 455 #define PCI_CHIP_I945_G                 0x2772
 456 #define PCI_CHIP_I945_GM                0x27A2
 457 #define PCI_CHIP_I945_GME               0x27AE
 458 #define PCI_CHIP_G33_G                  0x29C2
 459 #define PCI_CHIP_Q35_G                  0x29B2
 460 #define PCI_CHIP_Q33_G                  0x29D2
 461
 462
 463 /* ================================================================
 464  * intel_context.c:
 465  */
 466
 467 extern void intelInitDriverFunctions( struct dd_function_table *functions );
 468
 469 extern GLboolean intelInitContext( intelContextPtr intel,
 470                                    const __GLcontextModes *mesaVis,
 471                                    __DRIcontextPrivate *driContextPriv,
 472                                    void *sharedContextPrivate,
 473                                    struct dd_function_table *functions );
 474
 475 extern void intelGetLock(intelContextPtr intel, GLuint flags);
 476 extern void intelSetBackClipRects(intelContextPtr intel);
 477 extern void intelSetFrontClipRects(intelContextPtr intel);
 478 extern void intelWindowMoved( intelContextPtr intel );
 479
 480 extern const GLubyte *intelGetString( GLcontext *ctx, GLenum name );
 481
 482
 483 /* ================================================================
 484  * intel_state.c:
 485  */
 486 extern void intelInitStateFuncs( struct dd_function_table *functions );
 487
 488 #define COMPAREFUNC_ALWAYS              0
 489 #define COMPAREFUNC_NEVER               0x1
 490 #define COMPAREFUNC_LESS                0x2
 491 #define COMPAREFUNC_EQUAL               0x3
 492 #define COMPAREFUNC_LEQUAL              0x4
 493 #define COMPAREFUNC_GREATER             0x5
 494 #define COMPAREFUNC_NOTEQUAL            0x6
 495 #define COMPAREFUNC_GEQUAL              0x7
 496
 497 #define STENCILOP_KEEP                  0
 498 #define STENCILOP_ZERO                  0x1
 499 #define STENCILOP_REPLACE               0x2
 500 #define STENCILOP_INCRSAT               0x3
 501 #define STENCILOP_DECRSAT               0x4
 502 #define STENCILOP_INCR                  0x5
 503 #define STENCILOP_DECR                  0x6
 504 #define STENCILOP_INVERT                0x7
 505
 506 #define LOGICOP_CLEAR                   0
 507 #define LOGICOP_NOR                     0x1
 508 #define LOGICOP_AND_INV                 0x2
 509 #define LOGICOP_COPY_INV                0x3
 510 #define LOGICOP_AND_RVRSE               0x4
 511 #define LOGICOP_INV                     0x5
 512 #define LOGICOP_XOR                     0x6
 513 #define LOGICOP_NAND                    0x7
 514 #define LOGICOP_AND                     0x8
 515 #define LOGICOP_EQUIV                   0x9
 516 #define LOGICOP_NOOP                    0xa
 517 #define LOGICOP_OR_INV                  0xb
 518 #define LOGICOP_COPY                    0xc
 519 #define LOGICOP_OR_RVRSE                0xd
 520 #define LOGICOP_OR                      0xe
 521 #define LOGICOP_SET                     0xf
 522
 523 #define BLENDFACT_ZERO                  0x01
 524 #define BLENDFACT_ONE                   0x02
 525 #define BLENDFACT_SRC_COLR              0x03
 526 #define BLENDFACT_INV_SRC_COLR          0x04
 527 #define BLENDFACT_SRC_ALPHA             0x05
 528 #define BLENDFACT_INV_SRC_ALPHA         0x06
 529 #define BLENDFACT_DST_ALPHA             0x07
 530 #define BLENDFACT_INV_DST_ALPHA         0x08
 531 #define BLENDFACT_DST_COLR              0x09
 532 #define BLENDFACT_INV_DST_COLR          0x0a
 533 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 534 #define BLENDFACT_CONST_COLOR           0x0c
 535 #define BLENDFACT_INV_CONST_COLOR       0x0d
 536 #define BLENDFACT_CONST_ALPHA           0x0e
 537 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 538 #define BLENDFACT_MASK                  0x0f
 539
 540
 541 extern int intel_translate_compare_func( GLenum func );
 542 extern int intel_translate_stencil_op( GLenum op );
 543 extern int intel_translate_blend_factor( GLenum factor );
 544 extern int intel_translate_logic_op( GLenum opcode );
 545
 546
 547 /* ================================================================
 548  * intel_ioctl.c:
 549  */
 550 extern void intel_dump_batchbuffer( long offset,
 551                                     int *ptr,
 552                                     int count );
 553
 554
 555 /* ================================================================
 556  * intel_pixel.c:
 557  */
 558 extern void intelInitPixelFuncs( struct dd_function_table *functions );
 559
 560
 561
 562 #endif
 563