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 "i830_common.h"
  40 #include "tnl/t_vertex.h"
  41
  42 #define TAG(x) intel##x
  43 #include "tnl_dd/t_dd_vertex.h"
  44 #undef TAG
  45
  46 #define DV_PF_555  (1<<8)
  47 #define DV_PF_565  (2<<8)
  48 #define DV_PF_8888 (3<<8)
  49
  50 #define INTEL_CONTEXT(ctx)      ((intelContextPtr)(ctx))
  51
  52 typedef struct intel_context intelContext;
  53 typedef struct intel_context *intelContextPtr;
  54 typedef struct intel_texture_object *intelTextureObjectPtr;
  55
  56 typedef void (*intel_tri_func)(intelContextPtr, intelVertex *, intelVertex *,
  57                                                           intelVertex *);
  58 typedef void (*intel_line_func)(intelContextPtr, intelVertex *, intelVertex *);
  59 typedef void (*intel_point_func)(intelContextPtr, intelVertex *);
  60
  61 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  62 #define INTEL_FALLBACK_READ_BUFFER       0x2
  63 #define INTEL_FALLBACK_USER              0x4
  64 #define INTEL_FALLBACK_NO_BATCHBUFFER    0x8
  65 #define INTEL_FALLBACK_NO_TEXMEM         0x10
  66 #define INTEL_FALLBACK_RENDERMODE        0x20
  67
  68 extern void intelFallback( intelContextPtr intel, GLuint bit, GLboolean mode );
  69 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  70
  71
  72 #define INTEL_TEX_MAXLEVELS 10
  73
  74
  75 struct intel_texture_object
  76 {
  77    driTextureObject    base;    /* the parent class */
  78
  79    GLuint texelBytes;
  80    GLuint age;
  81    GLuint Pitch;
  82    GLuint Height;
  83    GLuint TextureOffset;
  84    GLubyte *BufAddr;
  85
  86    GLuint min_level;
  87    GLuint max_level;
  88    GLuint depth_pitch;
  89
  90    struct {
  91       const struct gl_texture_image *image;
  92       GLuint offset;       /* into BufAddr */
  93       GLuint height;
  94       GLuint internalFormat;
  95    } image[6][INTEL_TEX_MAXLEVELS];
  96
  97    GLuint dirty;
  98    GLuint firstLevel,lastLevel;
  99 };
 100
 101
 102 struct intel_context
 103 {
 104    GLcontext ctx;               /* the parent class */
 105
 106    struct {
 107       void (*destroy)( intelContextPtr intel );
 108       void (*emit_state)( intelContextPtr intel );
 109       void (*emit_invarient_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_draw_offset)( intelContextPtr intel, int offset );
 115       void (*emit_flush)( intelContextPtr intel );
 116
 117       void (*reduced_primitive_state)( intelContextPtr intel, GLenum rprim );
 118
 119       GLboolean (*check_vertex_size)( intelContextPtr intel, GLuint expected );
 120
 121       void (*clear_with_tris)( intelContextPtr intel, GLbitfield mask,
 122                                GLboolean all,
 123                                GLint cx, GLint cy, GLint cw, GLint ch);
 124
 125       intelTextureObjectPtr (*alloc_tex_obj)( struct gl_texture_object *tObj );
 126
 127    } vtbl;
 128
 129    GLint refcount;
 130    GLuint Fallback;
 131    GLuint NewGLState;
 132
 133    struct {
 134       GLuint start_offset;
 135       GLint size;
 136       GLint space;
 137       GLubyte *ptr;
 138    } batch;
 139
 140    struct {
 141       void *ptr;
 142       GLint size;
 143       GLuint offset;
 144       GLuint active_buf;
 145       GLuint irq_emitted;
 146    } alloc;
 147
 148    struct {
 149       GLuint primitive;
 150       GLubyte *start_ptr;
 151       void (*flush)( GLcontext * );
 152    } prim;
 153
 154    GLboolean locked;
 155
 156    GLubyte clear_red;
 157    GLubyte clear_green;
 158    GLubyte clear_blue;
 159    GLubyte clear_alpha;
 160    GLuint ClearColor;
 161    GLuint ClearDepth;
 162
 163    GLuint coloroffset;
 164    GLuint specoffset;
 165
 166    /* Support for duplicating XYZW as WPOS parameter (crutch for I915).
 167     */
 168    GLuint wpos_offset;
 169    GLuint wpos_size;
 170
 171    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 172    GLuint vertex_attr_count;
 173
 174    GLfloat depth_scale;
 175    GLfloat polygon_offset_scale; /* dependent on depth_scale, bpp */
 176    GLuint depth_clear_mask;
 177    GLuint stencil_clear_mask;
 178
 179    GLboolean hw_stencil;
 180    GLboolean hw_stipple;
 181
 182    /* Texture object bookkeeping
 183     */
 184    GLuint                nr_heaps;
 185    driTexHeap          * texture_heaps[1];
 186    driTextureObject      swapped;
 187    GLuint                lastStamp;
 188
 189    struct intel_texture_object *CurrentTexObj[MAX_TEXTURE_UNITS];
 190
 191    /* State for intelvb.c and inteltris.c.
 192     */
 193    GLuint RenderIndex;
 194    GLmatrix ViewportMatrix;
 195    GLenum render_primitive;
 196    GLenum reduced_primitive;
 197    GLuint vertex_size;
 198    char *verts;                 /* points to tnl->clipspace.vertex_buf */
 199
 200
 201    /* Fallback rasterization functions
 202     */
 203    intel_point_func draw_point;
 204    intel_line_func draw_line;
 205    intel_tri_func draw_tri;
 206
 207    /* These refer to the current draw (front vs. back) buffer:
 208     */
 209    char *drawMap;               /* draw buffer address in virtual mem */
 210    char *readMap;
 211    GLuint drawOffset;           /* agp offset of drawbuffer */
 212    int drawX;                   /* origin of drawable in draw buffer */
 213    int drawY;
 214    GLuint numClipRects;         /* cliprects for that buffer */
 215    drm_clip_rect_t *pClipRects;
 216
 217    int dirtyAge;
 218    int perf_boxes;
 219    int do_irqs;
 220
 221    GLboolean scissor;
 222    drm_clip_rect_t draw_rect;
 223    drm_clip_rect_t scissor_rect;
 224
 225    drm_context_t hHWContext;
 226    drmLock *driHwLock;
 227    int driFd;
 228
 229    __DRIdrawablePrivate *driDrawable;
 230    __DRIscreenPrivate *driScreen;
 231    intelScreenPrivate *intelScreen;
 232    drmI830Sarea *sarea;
 233
 234    /**
 235     * Configuration cache
 236     */
 237    driOptionCache optionCache;
 238 };
 239
 240
 241 #define DEBUG_LOCKING   1
 242
 243 #if DEBUG_LOCKING
 244 extern char *prevLockFile;
 245 extern int prevLockLine;
 246
 247 #define DEBUG_LOCK()                                                    \
 248    do {                                                                 \
 249       prevLockFile = (__FILE__);                                        \
 250       prevLockLine = (__LINE__);                                        \
 251    } while (0)
 252
 253 #define DEBUG_RESET()                                                   \
 254    do {                                                                 \
 255       prevLockFile = 0;                                                 \
 256       prevLockLine = 0;                                                 \
 257    } while (0)
 258
 259 /* Slightly less broken way of detecting recursive locking in a
 260  * threaded environment.  The right way to do this would be to make
 261  * prevLockFile, prevLockLine thread-local.
 262  *
 263  * This technique instead checks to see if the same context is
 264  * requesting the lock twice -- this will not catch application
 265  * breakages where the same context is active in two different threads
 266  * at once, but it will catch driver breakages (recursive locking) in
 267  * threaded apps.
 268  */
 269 #define DEBUG_CHECK_LOCK()                                              \
 270    do {                                                                 \
 271       if ( *((volatile int *)intel->driHwLock) ==                       \
 272            (DRM_LOCK_HELD | intel->hHWContext) ) {                      \
 273          fprintf( stderr,                                               \
 274                   "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n",    \
 275                   prevLockFile, prevLockLine, __FILE__, __LINE__ );     \
 276          abort();                                                       \
 277       }                                                                 \
 278    } while (0)
 279
 280 #else
 281
 282 #define DEBUG_LOCK()
 283 #define DEBUG_RESET()
 284 #define DEBUG_CHECK_LOCK()
 285
 286 #endif
 287
 288
 289
 290
 291 /* Lock the hardware and validate our state.
 292  */
 293 #define LOCK_HARDWARE( intel )                          \
 294 do {                                                    \
 295     char __ret=0;                                       \
 296     DEBUG_CHECK_LOCK();                                 \
 297     assert(!(intel)->locked);                           \
 298     DRM_CAS((intel)->driHwLock, (intel)->hHWContext,    \
 299         (DRM_LOCK_HELD|(intel)->hHWContext), __ret);    \
 300     if (__ret)                                          \
 301         intelGetLock( (intel), 0 );                     \
 302       DEBUG_LOCK();                                     \
 303     (intel)->locked = 1;                                \
 304 }while (0)
 305
 306
 307   /* Unlock the hardware using the global current context
 308    */
 309 #define UNLOCK_HARDWARE(intel)                                          \
 310 do {                                                                    \
 311    intel->locked = 0;                                                   \
 312    if (0) {                                                             \
 313       intel->perf_boxes |= intel->sarea->perf_boxes;                    \
 314       intel->sarea->perf_boxes = 0;                                     \
 315    }                                                                    \
 316    DRM_UNLOCK((intel)->driFd, (intel)->driHwLock, (intel)->hHWContext); \
 317    DEBUG_RESET();                                                       \
 318 } while (0)
 319
 320
 321 #define SUBPIXEL_X 0.125
 322 #define SUBPIXEL_Y 0.125
 323
 324 #define INTEL_FIREVERTICES(intel)               \
 325 do {                                            \
 326    if ((intel)->prim.flush)                     \
 327       (intel)->prim.flush(&(intel)->ctx);               \
 328 } while (0)
 329
 330 /* ================================================================
 331  * Color packing:
 332  */
 333
 334 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 335   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 336
 337 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 338   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 339     ((a) ? 0x8000 : 0))
 340
 341 #define INTEL_PACKCOLOR565(r,g,b) \
 342   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 343
 344 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 345   ((a<<24) | (r<<16) | (g<<8) | b)
 346
 347
 348 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 349 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 350  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 351   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 352    0)))
 353
 354
 355
 356 /* ================================================================
 357  * From linux kernel i386 header files, copes with odd sizes better
 358  * than COPY_DWORDS would:
 359  */
 360 #ifdef __i386__
 361 static __inline__ void * __memcpy(void * to, const void * from, size_t n)
 362 {
 363    int d0, d1, d2;
 364    __asm__ __volatile__(
 365       "rep ; movsl\n\t"
 366       "testb $2,%b4\n\t"
 367       "je 1f\n\t"
 368       "movsw\n"
 369       "1:\ttestb $1,%b4\n\t"
 370       "je 2f\n\t"
 371       "movsb\n"
 372       "2:"
 373       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 374       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 375       : "memory");
 376    return (to);
 377 }
 378 #else
 379 #define __memcpy(a,b,c) memcpy(a,b,c)
 380 #endif
 381
 382
 383
 384 /* ================================================================
 385  * Debugging:
 386  */
 387 #define DO_DEBUG                1
 388 #if DO_DEBUG
 389 extern int INTEL_DEBUG;
 390 #else
 391 #define INTEL_DEBUG             0
 392 #endif
 393
 394 #define DEBUG_TEXTURE   0x1
 395 #define DEBUG_STATE     0x2
 396 #define DEBUG_IOCTL     0x4
 397 #define DEBUG_PRIMS     0x8
 398 #define DEBUG_VERTS     0x10
 399 #define DEBUG_FALLBACKS 0x20
 400 #define DEBUG_VERBOSE   0x40
 401 #define DEBUG_DRI       0x80
 402 #define DEBUG_DMA       0x100
 403 #define DEBUG_SANITY    0x200
 404 #define DEBUG_SYNC      0x400
 405 #define DEBUG_SLEEP     0x800
 406 #define DEBUG_PIXEL     0x1000
 407
 408
 409 #define PCI_CHIP_845_G                  0x2562
 410 #define PCI_CHIP_I830_M                 0x3577
 411 #define PCI_CHIP_I855_GM                0x3582
 412 #define PCI_CHIP_I865_G                 0x2572
 413 #define PCI_CHIP_I915_G                 0x2582
 414
 415
 416 /* ================================================================
 417  * intel_context.c:
 418  */
 419
 420 extern void intelInitDriverFunctions( struct dd_function_table *functions );
 421
 422 extern GLboolean intelInitContext( intelContextPtr intel,
 423                                    const __GLcontextModes *mesaVis,
 424                                    __DRIcontextPrivate *driContextPriv,
 425                                    void *sharedContextPrivate,
 426                                    struct dd_function_table *functions );
 427
 428 extern void intelGetLock(intelContextPtr intel, GLuint flags);
 429 extern void intelSetBackClipRects(intelContextPtr intel);
 430 extern void intelSetFrontClipRects(intelContextPtr intel);
 431 extern void intelWindowMoved( intelContextPtr intel );
 432
 433 extern void intelInitState( GLcontext *ctx );
 434 extern const GLubyte *intelGetString( GLcontext *ctx, GLenum name );
 435
 436
 437 /* ================================================================
 438  * intel_state.c:
 439  */
 440 extern void intelInitStateFuncs( struct dd_function_table *functions );
 441
 442
 443 /* ================================================================
 444  * intel_ioctl.c:
 445  */
 446 extern void intel_dump_batchbuffer( long offset,
 447                                     int *ptr,
 448                                     int count );
 449
 450
 451 /* ================================================================
 452  * intel_pixel.c:
 453  */
 454 extern void intelInitPixelFuncs( struct dd_function_table *functions );
 455
 456
 457
 458 #endif
 459