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 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  65 #define INTEL_FALLBACK_READ_BUFFER       0x2
  66 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  67 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  68 #define INTEL_FALLBACK_USER              0x10
  69 #define INTEL_FALLBACK_RENDERMODE        0x20
  70 #define INTEL_FALLBACK_TEXTURE           0x40
  71
  72 extern void intelFallback(struct intel_context *intel, GLuint bit,
  73                           GLboolean mode);
  74 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  75
  76
  77 #define INTEL_WRITE_PART  0x1
  78 #define INTEL_WRITE_FULL  0x2
  79 #define INTEL_READ        0x4
  80
  81 #define INTEL_MAX_FIXUP 64
  82
  83 struct intel_context
  84 {
  85    GLcontext ctx;               /* the parent class */
  86
  87    struct
  88    {
  89       void (*destroy) (struct intel_context * intel);
  90       void (*emit_state) (struct intel_context * intel);
  91       void (*finish_batch) (struct intel_context * intel);
  92       void (*new_batch) (struct intel_context * intel);
  93       void (*emit_invarient_state) (struct intel_context * intel);
  94       void (*note_fence) (struct intel_context *intel, GLuint fence);
  95       void (*update_texture_state) (struct intel_context * intel);
  96
  97       void (*render_start) (struct intel_context * intel);
  98       void (*render_prevalidate) (struct intel_context * intel);
  99       void (*set_draw_region) (struct intel_context * intel,
 100                                struct intel_region * draw_regions[],
 101                                struct intel_region * depth_region,
 102                                GLuint num_regions);
 103
 104       GLuint (*flush_cmd) (void);
 105
 106       void (*reduced_primitive_state) (struct intel_context * intel,
 107                                        GLenum rprim);
 108
 109       GLboolean (*check_vertex_size) (struct intel_context * intel,
 110                                       GLuint expected);
 111       void (*invalidate_state) (struct intel_context *intel,
 112                                 GLuint new_state);
 113
 114
 115       /* Metaops:
 116        */
 117       void (*install_meta_state) (struct intel_context * intel);
 118       void (*leave_meta_state) (struct intel_context * intel);
 119
 120       void (*meta_draw_region) (struct intel_context * intel,
 121                                 struct intel_region * draw_region,
 122                                 struct intel_region * depth_region);
 123
 124       void (*meta_draw_quad)(struct intel_context *intel,
 125                              GLfloat x0, GLfloat x1,
 126                              GLfloat y0, GLfloat y1,
 127                              GLfloat z,
 128                              GLuint color, /* ARGB32 */
 129                              GLfloat s0, GLfloat s1,
 130                              GLfloat t0, GLfloat t1);
 131
 132       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 133
 134       void (*meta_stencil_replace) (struct intel_context * intel,
 135                                     GLuint mask, GLuint clear);
 136
 137       void (*meta_depth_replace) (struct intel_context * intel);
 138
 139       void (*meta_texture_blend_replace) (struct intel_context * intel);
 140
 141       void (*meta_no_stencil_write) (struct intel_context * intel);
 142       void (*meta_no_depth_write) (struct intel_context * intel);
 143       void (*meta_no_texture) (struct intel_context * intel);
 144
 145       void (*meta_import_pixel_state) (struct intel_context * intel);
 146       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 147                                          GLint xoff, GLint yoff);
 148
 149       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 150                                         dri_bo * buffer,
 151                                         GLuint offset,
 152                                         GLuint pitch,
 153                                         GLuint height,
 154                                         GLenum format, GLenum type);
 155
 156       void (*assert_not_dirty) (struct intel_context *intel);
 157
 158       void (*debug_batch)(struct intel_context *intel);
 159    } vtbl;
 160
 161    struct dri_metaops meta;
 162
 163    GLint refcount;
 164    GLuint Fallback;
 165    GLuint NewGLState;
 166
 167    dri_bufmgr *bufmgr;
 168    unsigned int maxBatchSize;
 169
 170    struct intel_region *front_region;
 171    struct intel_region *back_region;
 172    struct intel_region *depth_region;
 173
 174    /**
 175     * This value indicates that the kernel memory manager is being used
 176     * instead of the fake client-side memory manager.
 177     */
 178    GLboolean ttm;
 179
 180    struct intel_batchbuffer *batch;
 181    GLboolean no_batch_wrap;
 182    unsigned batch_id;
 183
 184    struct
 185    {
 186       GLuint id;
 187       uint32_t primitive;       /**< Current hardware primitive type */
 188       void (*flush) (struct intel_context *);
 189       GLubyte *start_ptr; /**< for i8xx */
 190       dri_bo *vb_bo;
 191       uint8_t *vb;
 192       unsigned int start_offset; /**< Byte offset of primitive sequence */
 193       unsigned int current_offset; /**< Byte offset of next vertex */
 194       unsigned int count;       /**< Number of vertices in current primitive */
 195    } prim;
 196
 197    GLuint stats_wm;
 198    GLboolean locked;
 199    char *prevLockFile;
 200    int prevLockLine;
 201
 202    GLuint ClearColor565;
 203    GLuint ClearColor8888;
 204
 205
 206    /* Offsets of fields within the current vertex:
 207     */
 208    GLuint coloroffset;
 209    GLuint specoffset;
 210    GLuint wpos_offset;
 211    GLuint wpos_size;
 212
 213    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 214    GLuint vertex_attr_count;
 215
 216    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 217
 218    GLboolean hw_stencil;
 219    GLboolean hw_stipple;
 220    GLboolean depth_buffer_is_float;
 221    GLboolean no_rast;
 222    GLboolean always_flush_batch;
 223    GLboolean always_flush_cache;
 224
 225    /* 0 - nonconformant, best performance;
 226     * 1 - fallback to sw for known conformance bugs
 227     * 2 - always fallback to sw
 228     */
 229    GLuint conformance_mode;
 230
 231    /* State for intelvb.c and inteltris.c.
 232     */
 233    GLuint RenderIndex;
 234    GLmatrix ViewportMatrix;
 235    GLenum render_primitive;
 236    GLenum reduced_primitive;
 237    GLuint vertex_size;
 238    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 239
 240    /* Fallback rasterization functions
 241     */
 242    intel_point_func draw_point;
 243    intel_line_func draw_line;
 244    intel_tri_func draw_tri;
 245
 246    /* These refer to the current drawing buffer:
 247     */
 248    struct gl_texture_object *frame_buffer_texobj;
 249    /**
 250     * Set to true if a single constant cliprect should be used in the
 251     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 252     * flush time while the lock is held.
 253     */
 254    GLboolean constant_cliprect;
 255
 256    /**
 257     * In !constant_cliprect mode, set to true if the front cliprects should be
 258     * used instead of back.
 259     */
 260    GLboolean front_cliprects;
 261
 262    /**
 263     * Set if rendering has occured to the drawable's front buffer.
 264     *
 265     * This is used in the DRI2 case to detect that glFlush should also copy
 266     * the contents of the fake front buffer to the real front buffer.
 267     */
 268    GLboolean front_buffer_dirty;
 269
 270    /**
 271     * Track whether front-buffer rendering is currently enabled
 272     *
 273     * A separate flag is used to track this in order to support MRT more
 274     * easily.
 275     */
 276    GLboolean is_front_buffer_rendering;
 277    /**
 278     * Track whether front-buffer is the current read target.
 279     *
 280     * This is closely associated with is_front_buffer_rendering, but may
 281     * be set separately.  The DRI2 fake front buffer must be referenced
 282     * either way.
 283     */
 284    GLboolean is_front_buffer_reading;
 285
 286    GLboolean use_texture_tiling;
 287    GLboolean use_early_z;
 288
 289    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 290
 291    int perf_boxes;
 292
 293    GLuint do_usleeps;
 294    int do_irqs;
 295    GLuint irqsEmitted;
 296
 297    GLboolean scissor;
 298    drm_clip_rect_t draw_rect;
 299    drm_clip_rect_t scissor_rect;
 300
 301    drm_context_t hHWContext;
 302    drmLock *driHwLock;
 303    int driFd;
 304
 305    __DRIcontextPrivate *driContext;
 306    __DRIdrawablePrivate *driDrawable;
 307    __DRIdrawablePrivate *driReadDrawable;
 308    __DRIscreenPrivate *driScreen;
 309    intelScreenPrivate *intelScreen;
 310    volatile struct drm_i915_sarea *sarea;
 311
 312    GLuint lastStamp;
 313
 314    GLboolean no_hw;
 315
 316    /**
 317     * Configuration cache
 318     */
 319    driOptionCache optionCache;
 320
 321    int64_t swap_ust;
 322    int64_t swap_missed_ust;
 323
 324    GLuint swap_count;
 325    GLuint swap_missed_count;
 326 };
 327
 328 /* These are functions now:
 329  */
 330 void LOCK_HARDWARE( struct intel_context *intel );
 331 void UNLOCK_HARDWARE( struct intel_context *intel );
 332
 333 extern char *__progname;
 334
 335
 336 #define SUBPIXEL_X 0.125
 337 #define SUBPIXEL_Y 0.125
 338
 339 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 340 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 341 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 342
 343 #define INTEL_FIREVERTICES(intel)               \
 344 do {                                            \
 345    if ((intel)->prim.flush)                     \
 346       (intel)->prim.flush(intel);               \
 347 } while (0)
 348
 349 /* ================================================================
 350  * Color packing:
 351  */
 352
 353 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 354   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 355
 356 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 357   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 358     ((a) ? 0x8000 : 0))
 359
 360 #define INTEL_PACKCOLOR565(r,g,b) \
 361   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 362
 363 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 364   ((a<<24) | (r<<16) | (g<<8) | b)
 365
 366 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 367 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 368  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 369   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 370    0)))
 371
 372 /* ================================================================
 373  * From linux kernel i386 header files, copes with odd sizes better
 374  * than COPY_DWORDS would:
 375  * XXX Put this in src/mesa/main/imports.h ???
 376  */
 377 #if defined(i386) || defined(__i386__)
 378 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 379 {
 380    int d0, d1, d2;
 381    __asm__ __volatile__(
 382       "rep ; movsl\n\t"
 383       "testb $2,%b4\n\t"
 384       "je 1f\n\t"
 385       "movsw\n"
 386       "1:\ttestb $1,%b4\n\t"
 387       "je 2f\n\t"
 388       "movsb\n"
 389       "2:"
 390       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 391       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 392       : "memory");
 393    return (to);
 394 }
 395 #else
 396 #define __memcpy(a,b,c) memcpy(a,b,c)
 397 #endif
 398
 399
 400 /* ================================================================
 401  * Debugging:
 402  */
 403 extern int INTEL_DEBUG;
 404
 405 #define DEBUG_TEXTURE   0x1
 406 #define DEBUG_STATE     0x2
 407 #define DEBUG_IOCTL     0x4
 408 #define DEBUG_BLIT      0x8
 409 #define DEBUG_MIPTREE   0x10
 410 #define DEBUG_FALLBACKS 0x20
 411 #define DEBUG_VERBOSE   0x40
 412 #define DEBUG_BATCH     0x80
 413 #define DEBUG_PIXEL     0x100
 414 #define DEBUG_BUFMGR    0x200
 415 #define DEBUG_REGION    0x400
 416 #define DEBUG_FBO       0x800
 417 #define DEBUG_LOCK      0x1000
 418 #define DEBUG_SYNC      0x2000
 419 #define DEBUG_PRIMS     0x4000
 420 #define DEBUG_VERTS     0x8000
 421 #define DEBUG_DRI       0x10000
 422 #define DEBUG_DMA       0x20000
 423 #define DEBUG_SANITY    0x40000
 424 #define DEBUG_SLEEP     0x80000
 425 #define DEBUG_STATS     0x100000
 426 #define DEBUG_TILE      0x200000
 427 #define DEBUG_SINGLE_THREAD   0x400000
 428 #define DEBUG_WM        0x800000
 429 #define DEBUG_URB       0x1000000
 430 #define DEBUG_VS        0x2000000
 431
 432 #define DBG(...) do {                                           \
 433         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 434                 _mesa_printf(__VA_ARGS__);                      \
 435 } while(0)
 436
 437 #define PCI_CHIP_845_G                  0x2562
 438 #define PCI_CHIP_I830_M                 0x3577
 439 #define PCI_CHIP_I855_GM                0x3582
 440 #define PCI_CHIP_I865_G                 0x2572
 441 #define PCI_CHIP_I915_G                 0x2582
 442 #define PCI_CHIP_I915_GM                0x2592
 443 #define PCI_CHIP_I945_G                 0x2772
 444 #define PCI_CHIP_I945_GM                0x27A2
 445 #define PCI_CHIP_I945_GME               0x27AE
 446 #define PCI_CHIP_G33_G                  0x29C2
 447 #define PCI_CHIP_Q35_G                  0x29B2
 448 #define PCI_CHIP_Q33_G                  0x29D2
 449
 450
 451 /* ================================================================
 452  * intel_context.c:
 453  */
 454
 455 extern GLboolean intelInitContext(struct intel_context *intel,
 456                                   const __GLcontextModes * mesaVis,
 457                                   __DRIcontextPrivate * driContextPriv,
 458                                   void *sharedContextPrivate,
 459                                   struct dd_function_table *functions);
 460
 461 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 462
 463 extern void intelFinish(GLcontext * ctx);
 464 extern void intelFlush(GLcontext * ctx);
 465
 466 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 467
 468
 469 /* ================================================================
 470  * intel_state.c:
 471  */
 472 extern void intelInitStateFuncs(struct dd_function_table *functions);
 473
 474 #define COMPAREFUNC_ALWAYS              0
 475 #define COMPAREFUNC_NEVER               0x1
 476 #define COMPAREFUNC_LESS                0x2
 477 #define COMPAREFUNC_EQUAL               0x3
 478 #define COMPAREFUNC_LEQUAL              0x4
 479 #define COMPAREFUNC_GREATER             0x5
 480 #define COMPAREFUNC_NOTEQUAL            0x6
 481 #define COMPAREFUNC_GEQUAL              0x7
 482
 483 #define STENCILOP_KEEP                  0
 484 #define STENCILOP_ZERO                  0x1
 485 #define STENCILOP_REPLACE               0x2
 486 #define STENCILOP_INCRSAT               0x3
 487 #define STENCILOP_DECRSAT               0x4
 488 #define STENCILOP_INCR                  0x5
 489 #define STENCILOP_DECR                  0x6
 490 #define STENCILOP_INVERT                0x7
 491
 492 #define LOGICOP_CLEAR                   0
 493 #define LOGICOP_NOR                     0x1
 494 #define LOGICOP_AND_INV                 0x2
 495 #define LOGICOP_COPY_INV                0x3
 496 #define LOGICOP_AND_RVRSE               0x4
 497 #define LOGICOP_INV                     0x5
 498 #define LOGICOP_XOR                     0x6
 499 #define LOGICOP_NAND                    0x7
 500 #define LOGICOP_AND                     0x8
 501 #define LOGICOP_EQUIV                   0x9
 502 #define LOGICOP_NOOP                    0xa
 503 #define LOGICOP_OR_INV                  0xb
 504 #define LOGICOP_COPY                    0xc
 505 #define LOGICOP_OR_RVRSE                0xd
 506 #define LOGICOP_OR                      0xe
 507 #define LOGICOP_SET                     0xf
 508
 509 #define BLENDFACT_ZERO                  0x01
 510 #define BLENDFACT_ONE                   0x02
 511 #define BLENDFACT_SRC_COLR              0x03
 512 #define BLENDFACT_INV_SRC_COLR          0x04
 513 #define BLENDFACT_SRC_ALPHA             0x05
 514 #define BLENDFACT_INV_SRC_ALPHA         0x06
 515 #define BLENDFACT_DST_ALPHA             0x07
 516 #define BLENDFACT_INV_DST_ALPHA         0x08
 517 #define BLENDFACT_DST_COLR              0x09
 518 #define BLENDFACT_INV_DST_COLR          0x0a
 519 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 520 #define BLENDFACT_CONST_COLOR           0x0c
 521 #define BLENDFACT_INV_CONST_COLOR       0x0d
 522 #define BLENDFACT_CONST_ALPHA           0x0e
 523 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 524 #define BLENDFACT_MASK                  0x0f
 525
 526 enum {
 527    DRI_CONF_BO_REUSE_DISABLED,
 528    DRI_CONF_BO_REUSE_ALL
 529 };
 530
 531 extern int intel_translate_shadow_compare_func(GLenum func);
 532 extern int intel_translate_compare_func(GLenum func);
 533 extern int intel_translate_stencil_op(GLenum op);
 534 extern int intel_translate_blend_factor(GLenum factor);
 535 extern int intel_translate_logic_op(GLenum opcode);
 536
 537 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 538                     GLsizei width, GLsizei height);
 539
 540 void intel_update_renderbuffers(__DRIcontext *context,
 541                                 __DRIdrawable *drawable);
 542
 543 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 544                                   uint32_t buffer_id);
 545
 546 /*======================================================================
 547  * Inline conversion functions.
 548  * These are better-typed than the macros used previously:
 549  */
 550 static INLINE struct intel_context *
 551 intel_context(GLcontext * ctx)
 552 {
 553    return (struct intel_context *) ctx;
 554 }
 555
 556 static INLINE GLboolean
 557 is_power_of_two(uint32_t value)
 558 {
 559    return (value & (value - 1)) == 0;
 560 }
 561
 562 #endif