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 (*emit_invarient_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
 267
 268 #define DEBUG_LOCKING   1
 269
 270 #if DEBUG_LOCKING
 271 extern char *prevLockFile;
 272 extern int prevLockLine;
 273
 274 #define DEBUG_LOCK()                                                    \
 275    do {                                                                 \
 276       prevLockFile = (__FILE__);                                        \
 277       prevLockLine = (__LINE__);                                        \
 278    } while (0)
 279
 280 #define DEBUG_RESET()                                                   \
 281    do {                                                                 \
 282       prevLockFile = 0;                                                 \
 283       prevLockLine = 0;                                                 \
 284    } while (0)
 285
 286 /* Slightly less broken way of detecting recursive locking in a
 287  * threaded environment.  The right way to do this would be to make
 288  * prevLockFile, prevLockLine thread-local.
 289  *
 290  * This technique instead checks to see if the same context is
 291  * requesting the lock twice -- this will not catch application
 292  * breakages where the same context is active in two different threads
 293  * at once, but it will catch driver breakages (recursive locking) in
 294  * threaded apps.
 295  */
 296 #define DEBUG_CHECK_LOCK()                                              \
 297    do {                                                                 \
 298       if ( *((volatile int *)intel->driHwLock) ==                       \
 299            (DRM_LOCK_HELD | intel->hHWContext) ) {                      \
 300          fprintf( stderr,                                               \
 301                   "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n",    \
 302                   prevLockFile, prevLockLine, __FILE__, __LINE__ );     \
 303          abort();                                                       \
 304       }                                                                 \
 305    } while (0)
 306
 307 #else
 308
 309 #define DEBUG_LOCK()
 310 #define DEBUG_RESET()
 311 #define DEBUG_CHECK_LOCK()
 312
 313 #endif
 314
 315
 316
 317
 318 /* Lock the hardware and validate our state.
 319  */
 320 #define LOCK_HARDWARE( intel )                          \
 321 do {                                                    \
 322     char __ret=0;                                       \
 323     DEBUG_CHECK_LOCK();                                 \
 324     assert(!(intel)->locked);                           \
 325     DRM_CAS((intel)->driHwLock, (intel)->hHWContext,    \
 326         (DRM_LOCK_HELD|(intel)->hHWContext), __ret);    \
 327     if (__ret)                                          \
 328         intelGetLock( (intel), 0 );                     \
 329       DEBUG_LOCK();                                     \
 330     (intel)->locked = 1;                                \
 331 }while (0)
 332
 333
 334   /* Unlock the hardware using the global current context
 335    */
 336 #define UNLOCK_HARDWARE(intel)                                          \
 337 do {                                                                    \
 338    intel->locked = 0;                                                   \
 339    if (0) {                                                             \
 340       intel->perf_boxes |= intel->sarea->perf_boxes;                    \
 341       intel->sarea->perf_boxes = 0;                                     \
 342    }                                                                    \
 343    DRM_UNLOCK((intel)->driFd, (intel)->driHwLock, (intel)->hHWContext); \
 344    DEBUG_RESET();                                                       \
 345 } while (0)
 346
 347
 348 #define SUBPIXEL_X 0.125
 349 #define SUBPIXEL_Y 0.125
 350
 351 #define INTEL_FIREVERTICES(intel)               \
 352 do {                                            \
 353    if ((intel)->prim.flush)                     \
 354       (intel)->prim.flush(&(intel)->ctx);               \
 355 } while (0)
 356
 357 /* ================================================================
 358  * Color packing:
 359  */
 360
 361 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 362   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 363
 364 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 365   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 366     ((a) ? 0x8000 : 0))
 367
 368 #define INTEL_PACKCOLOR565(r,g,b) \
 369   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 370
 371 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 372   ((a<<24) | (r<<16) | (g<<8) | b)
 373
 374
 375 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 376 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 377  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 378   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 379    0)))
 380
 381
 382
 383 /* ================================================================
 384  * From linux kernel i386 header files, copes with odd sizes better
 385  * than COPY_DWORDS would:
 386  */
 387 #if defined(i386) || defined(__i386__)
 388 static __inline__ void * __memcpy(void * to, const void * from, size_t n)
 389 {
 390    int d0, d1, d2;
 391    __asm__ __volatile__(
 392       "rep ; movsl\n\t"
 393       "testb $2,%b4\n\t"
 394       "je 1f\n\t"
 395       "movsw\n"
 396       "1:\ttestb $1,%b4\n\t"
 397       "je 2f\n\t"
 398       "movsb\n"
 399       "2:"
 400       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 401       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 402       : "memory");
 403    return (to);
 404 }
 405 #else
 406 #define __memcpy(a,b,c) memcpy(a,b,c)
 407 #endif
 408
 409
 410
 411 /* ================================================================
 412  * Debugging:
 413  */
 414 #define DO_DEBUG                1
 415 #if DO_DEBUG
 416 extern int INTEL_DEBUG;
 417 #else
 418 #define INTEL_DEBUG             0
 419 #endif
 420
 421 #define DEBUG_TEXTURE   0x1
 422 #define DEBUG_STATE     0x2
 423 #define DEBUG_IOCTL     0x4
 424 #define DEBUG_PRIMS     0x8
 425 #define DEBUG_VERTS     0x10
 426 #define DEBUG_FALLBACKS 0x20
 427 #define DEBUG_VERBOSE   0x40
 428 #define DEBUG_DRI       0x80
 429 #define DEBUG_DMA       0x100
 430 #define DEBUG_SANITY    0x200
 431 #define DEBUG_SYNC      0x400
 432 #define DEBUG_SLEEP     0x800
 433 #define DEBUG_PIXEL     0x1000
 434
 435
 436 #define PCI_CHIP_845_G                  0x2562
 437 #define PCI_CHIP_I830_M                 0x3577
 438 #define PCI_CHIP_I855_GM                0x3582
 439 #define PCI_CHIP_I865_G                 0x2572
 440 #define PCI_CHIP_I915_G                 0x2582
 441 #define PCI_CHIP_I915_GM                0x2592
 442 #define PCI_CHIP_I945_G                 0x2772
 443 #define PCI_CHIP_I945_GM                0x27A2
 444
 445
 446 /* ================================================================
 447  * intel_context.c:
 448  */
 449
 450 extern void intelInitDriverFunctions( struct dd_function_table *functions );
 451
 452 extern GLboolean intelInitContext( intelContextPtr intel,
 453                                    const __GLcontextModes *mesaVis,
 454                                    __DRIcontextPrivate *driContextPriv,
 455                                    void *sharedContextPrivate,
 456                                    struct dd_function_table *functions );
 457
 458 extern void intelGetLock(intelContextPtr intel, GLuint flags);
 459 extern void intelSetBackClipRects(intelContextPtr intel);
 460 extern void intelSetFrontClipRects(intelContextPtr intel);
 461 extern void intelWindowMoved( intelContextPtr intel );
 462
 463 extern void intelInitState( GLcontext *ctx );
 464 extern const GLubyte *intelGetString( GLcontext *ctx, GLenum name );
 465
 466
 467 /* ================================================================
 468  * intel_state.c:
 469  */
 470 extern void intelInitStateFuncs( struct dd_function_table *functions );
 471
 472 #define COMPAREFUNC_ALWAYS              0
 473 #define COMPAREFUNC_NEVER               0x1
 474 #define COMPAREFUNC_LESS                0x2
 475 #define COMPAREFUNC_EQUAL               0x3
 476 #define COMPAREFUNC_LEQUAL              0x4
 477 #define COMPAREFUNC_GREATER             0x5
 478 #define COMPAREFUNC_NOTEQUAL            0x6
 479 #define COMPAREFUNC_GEQUAL              0x7
 480
 481 #define STENCILOP_KEEP                  0
 482 #define STENCILOP_ZERO                  0x1
 483 #define STENCILOP_REPLACE               0x2
 484 #define STENCILOP_INCRSAT               0x3
 485 #define STENCILOP_DECRSAT               0x4
 486 #define STENCILOP_INCR                  0x5
 487 #define STENCILOP_DECR                  0x6
 488 #define STENCILOP_INVERT                0x7
 489
 490 #define LOGICOP_CLEAR                   0
 491 #define LOGICOP_NOR                     0x1
 492 #define LOGICOP_AND_INV                 0x2
 493 #define LOGICOP_COPY_INV                0x3
 494 #define LOGICOP_AND_RVRSE               0x4
 495 #define LOGICOP_INV                     0x5
 496 #define LOGICOP_XOR                     0x6
 497 #define LOGICOP_NAND                    0x7
 498 #define LOGICOP_AND                     0x8
 499 #define LOGICOP_EQUIV                   0x9
 500 #define LOGICOP_NOOP                    0xa
 501 #define LOGICOP_OR_INV                  0xb
 502 #define LOGICOP_COPY                    0xc
 503 #define LOGICOP_OR_RVRSE                0xd
 504 #define LOGICOP_OR                      0xe
 505 #define LOGICOP_SET                     0xf
 506
 507 #define BLENDFACT_ZERO                  0x01
 508 #define BLENDFACT_ONE                   0x02
 509 #define BLENDFACT_SRC_COLR              0x03
 510 #define BLENDFACT_INV_SRC_COLR          0x04
 511 #define BLENDFACT_SRC_ALPHA             0x05
 512 #define BLENDFACT_INV_SRC_ALPHA         0x06
 513 #define BLENDFACT_DST_ALPHA             0x07
 514 #define BLENDFACT_INV_DST_ALPHA         0x08
 515 #define BLENDFACT_DST_COLR              0x09
 516 #define BLENDFACT_INV_DST_COLR          0x0a
 517 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 518 #define BLENDFACT_CONST_COLOR           0x0c
 519 #define BLENDFACT_INV_CONST_COLOR       0x0d
 520 #define BLENDFACT_CONST_ALPHA           0x0e
 521 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 522 #define BLENDFACT_MASK                  0x0f
 523
 524
 525 extern int intel_translate_compare_func( GLenum func );
 526 extern int intel_translate_stencil_op( GLenum op );
 527 extern int intel_translate_blend_factor( GLenum factor );
 528 extern int intel_translate_logic_op( GLenum opcode );
 529
 530
 531 /* ================================================================
 532  * intel_ioctl.c:
 533  */
 534 extern void intel_dump_batchbuffer( long offset,
 535                                     int *ptr,
 536                                     int count );
 537
 538
 539 /* ================================================================
 540  * intel_pixel.c:
 541  */
 542 extern void intelInitPixelFuncs( struct dd_function_table *functions );
 543
 544
 545
 546 #endif
 547