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