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
  84 /**
  85  * intel_context is derived from Mesa's context class: GLcontext.
  86  */
  87 struct intel_context
  88 {
  89    GLcontext ctx;  /**< base class, must be first field */
  90
  91    struct
  92    {
  93       void (*destroy) (struct intel_context * intel);
  94       void (*emit_state) (struct intel_context * intel);
  95       void (*finish_batch) (struct intel_context * intel);
  96       void (*new_batch) (struct intel_context * intel);
  97       void (*emit_invarient_state) (struct intel_context * intel);
  98       void (*note_fence) (struct intel_context *intel, GLuint fence);
  99       void (*update_texture_state) (struct intel_context * intel);
 100
 101       void (*render_start) (struct intel_context * intel);
 102       void (*render_prevalidate) (struct intel_context * intel);
 103       void (*set_draw_region) (struct intel_context * intel,
 104                                struct intel_region * draw_regions[],
 105                                struct intel_region * depth_region,
 106                                GLuint num_regions);
 107
 108       GLuint (*flush_cmd) (void);
 109
 110       void (*reduced_primitive_state) (struct intel_context * intel,
 111                                        GLenum rprim);
 112
 113       GLboolean (*check_vertex_size) (struct intel_context * intel,
 114                                       GLuint expected);
 115       void (*invalidate_state) (struct intel_context *intel,
 116                                 GLuint new_state);
 117
 118
 119       /* Metaops:
 120        */
 121       void (*install_meta_state) (struct intel_context * intel);
 122       void (*leave_meta_state) (struct intel_context * intel);
 123
 124       void (*meta_draw_region) (struct intel_context * intel,
 125                                 struct intel_region * draw_region,
 126                                 struct intel_region * depth_region);
 127
 128       void (*meta_draw_quad)(struct intel_context *intel,
 129                              GLfloat x0, GLfloat x1,
 130                              GLfloat y0, GLfloat y1,
 131                              GLfloat z,
 132                              GLuint color, /* ARGB32 */
 133                              GLfloat s0, GLfloat s1,
 134                              GLfloat t0, GLfloat t1);
 135
 136       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 137
 138       void (*meta_stencil_replace) (struct intel_context * intel,
 139                                     GLuint mask, GLuint clear);
 140
 141       void (*meta_depth_replace) (struct intel_context * intel);
 142
 143       void (*meta_texture_blend_replace) (struct intel_context * intel);
 144
 145       void (*meta_no_stencil_write) (struct intel_context * intel);
 146       void (*meta_no_depth_write) (struct intel_context * intel);
 147       void (*meta_no_texture) (struct intel_context * intel);
 148
 149       void (*meta_import_pixel_state) (struct intel_context * intel);
 150       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 151                                          GLint xoff, GLint yoff);
 152
 153       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 154                                         dri_bo * buffer,
 155                                         GLuint offset,
 156                                         GLuint pitch,
 157                                         GLuint height,
 158                                         GLenum format, GLenum type);
 159
 160       void (*assert_not_dirty) (struct intel_context *intel);
 161
 162       void (*debug_batch)(struct intel_context *intel);
 163    } vtbl;
 164
 165    struct dri_metaops meta;
 166
 167    GLint refcount;
 168    GLuint Fallback;
 169    GLuint NewGLState;
 170
 171    dri_bufmgr *bufmgr;
 172    unsigned int maxBatchSize;
 173
 174    struct intel_region *front_region;
 175    struct intel_region *back_region;
 176    struct intel_region *depth_region;
 177
 178    /**
 179     * This value indicates that the kernel memory manager is being used
 180     * instead of the fake client-side memory manager.
 181     */
 182    GLboolean ttm;
 183
 184    struct intel_batchbuffer *batch;
 185    drm_intel_bo *first_post_swapbuffers_batch;
 186    GLboolean no_batch_wrap;
 187    unsigned batch_id;
 188
 189    struct
 190    {
 191       GLuint id;
 192       uint32_t primitive;       /**< Current hardware primitive type */
 193       void (*flush) (struct intel_context *);
 194       GLubyte *start_ptr; /**< for i8xx */
 195       dri_bo *vb_bo;
 196       uint8_t *vb;
 197       unsigned int start_offset; /**< Byte offset of primitive sequence */
 198       unsigned int current_offset; /**< Byte offset of next vertex */
 199       unsigned int count;       /**< Number of vertices in current primitive */
 200    } prim;
 201
 202    GLuint stats_wm;
 203    GLboolean locked;
 204    char *prevLockFile;
 205    int prevLockLine;
 206
 207    GLuint ClearColor565;
 208    GLuint ClearColor8888;
 209
 210
 211    /* Offsets of fields within the current vertex:
 212     */
 213    GLuint coloroffset;
 214    GLuint specoffset;
 215    GLuint wpos_offset;
 216    GLuint wpos_size;
 217
 218    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 219    GLuint vertex_attr_count;
 220
 221    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 222
 223    GLboolean hw_stencil;
 224    GLboolean hw_stipple;
 225    GLboolean depth_buffer_is_float;
 226    GLboolean no_rast;
 227    GLboolean always_flush_batch;
 228    GLboolean always_flush_cache;
 229
 230    /* 0 - nonconformant, best performance;
 231     * 1 - fallback to sw for known conformance bugs
 232     * 2 - always fallback to sw
 233     */
 234    GLuint conformance_mode;
 235
 236    /* State for intelvb.c and inteltris.c.
 237     */
 238    GLuint RenderIndex;
 239    GLmatrix ViewportMatrix;
 240    GLenum render_primitive;
 241    GLenum reduced_primitive;
 242    GLuint vertex_size;
 243    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 244
 245    /* Fallback rasterization functions
 246     */
 247    intel_point_func draw_point;
 248    intel_line_func draw_line;
 249    intel_tri_func draw_tri;
 250
 251    /* These refer to the current drawing buffer:
 252     */
 253    struct gl_texture_object *frame_buffer_texobj;
 254    /**
 255     * Set to true if a single constant cliprect should be used in the
 256     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 257     * flush time while the lock is held.
 258     */
 259    GLboolean constant_cliprect;
 260
 261    /**
 262     * In !constant_cliprect mode, set to true if the front cliprects should be
 263     * used instead of back.
 264     */
 265    GLboolean front_cliprects;
 266
 267    /**
 268     * Set if rendering has occured to the drawable's front buffer.
 269     *
 270     * This is used in the DRI2 case to detect that glFlush should also copy
 271     * the contents of the fake front buffer to the real front buffer.
 272     */
 273    GLboolean front_buffer_dirty;
 274
 275    /**
 276     * Track whether front-buffer rendering is currently enabled
 277     *
 278     * A separate flag is used to track this in order to support MRT more
 279     * easily.
 280     */
 281    GLboolean is_front_buffer_rendering;
 282    /**
 283     * Track whether front-buffer is the current read target.
 284     *
 285     * This is closely associated with is_front_buffer_rendering, but may
 286     * be set separately.  The DRI2 fake front buffer must be referenced
 287     * either way.
 288     */
 289    GLboolean is_front_buffer_reading;
 290
 291    GLboolean use_texture_tiling;
 292    GLboolean use_early_z;
 293
 294    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 295
 296    int perf_boxes;
 297
 298    GLuint do_usleeps;
 299    int do_irqs;
 300    GLuint irqsEmitted;
 301
 302    GLboolean scissor;
 303    drm_clip_rect_t draw_rect;
 304    drm_clip_rect_t scissor_rect;
 305
 306    drm_context_t hHWContext;
 307    drmLock *driHwLock;
 308    int driFd;
 309
 310    __DRIcontextPrivate *driContext;
 311    __DRIdrawablePrivate *driDrawable;
 312    __DRIdrawablePrivate *driReadDrawable;
 313    __DRIscreenPrivate *driScreen;
 314    intelScreenPrivate *intelScreen;
 315    volatile drm_i915_sarea_t *sarea;
 316
 317    GLuint lastStamp;
 318
 319    GLboolean no_hw;
 320
 321    /**
 322     * Configuration cache
 323     */
 324    driOptionCache optionCache;
 325
 326    int64_t swap_ust;
 327    int64_t swap_missed_ust;
 328
 329    GLuint swap_count;
 330    GLuint swap_missed_count;
 331 };
 332
 333 /* These are functions now:
 334  */
 335 void LOCK_HARDWARE( struct intel_context *intel );
 336 void UNLOCK_HARDWARE( struct intel_context *intel );
 337
 338 extern char *__progname;
 339
 340
 341 #define SUBPIXEL_X 0.125
 342 #define SUBPIXEL_Y 0.125
 343
 344 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 345 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 346 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 347
 348 #define INTEL_FIREVERTICES(intel)               \
 349 do {                                            \
 350    if ((intel)->prim.flush)                     \
 351       (intel)->prim.flush(intel);               \
 352 } while (0)
 353
 354 /* ================================================================
 355  * Color packing:
 356  */
 357
 358 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 359   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 360
 361 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 362   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 363     ((a) ? 0x8000 : 0))
 364
 365 #define INTEL_PACKCOLOR565(r,g,b) \
 366   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 367
 368 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 369   ((a<<24) | (r<<16) | (g<<8) | b)
 370
 371 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 372 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 373  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 374   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 375    0)))
 376
 377 /* ================================================================
 378  * From linux kernel i386 header files, copes with odd sizes better
 379  * than COPY_DWORDS would:
 380  * XXX Put this in src/mesa/main/imports.h ???
 381  */
 382 #if defined(i386) || defined(__i386__)
 383 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 384 {
 385    int d0, d1, d2;
 386    __asm__ __volatile__(
 387       "rep ; movsl\n\t"
 388       "testb $2,%b4\n\t"
 389       "je 1f\n\t"
 390       "movsw\n"
 391       "1:\ttestb $1,%b4\n\t"
 392       "je 2f\n\t"
 393       "movsb\n"
 394       "2:"
 395       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 396       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 397       : "memory");
 398    return (to);
 399 }
 400 #else
 401 #define __memcpy(a,b,c) memcpy(a,b,c)
 402 #endif
 403
 404
 405 /* ================================================================
 406  * Debugging:
 407  */
 408 extern int INTEL_DEBUG;
 409
 410 #define DEBUG_TEXTURE   0x1
 411 #define DEBUG_STATE     0x2
 412 #define DEBUG_IOCTL     0x4
 413 #define DEBUG_BLIT      0x8
 414 #define DEBUG_MIPTREE   0x10
 415 #define DEBUG_FALLBACKS 0x20
 416 #define DEBUG_VERBOSE   0x40
 417 #define DEBUG_BATCH     0x80
 418 #define DEBUG_PIXEL     0x100
 419 #define DEBUG_BUFMGR    0x200
 420 #define DEBUG_REGION    0x400
 421 #define DEBUG_FBO       0x800
 422 #define DEBUG_LOCK      0x1000
 423 #define DEBUG_SYNC      0x2000
 424 #define DEBUG_PRIMS     0x4000
 425 #define DEBUG_VERTS     0x8000
 426 #define DEBUG_DRI       0x10000
 427 #define DEBUG_DMA       0x20000
 428 #define DEBUG_SANITY    0x40000
 429 #define DEBUG_SLEEP     0x80000
 430 #define DEBUG_STATS     0x100000
 431 #define DEBUG_TILE      0x200000
 432 #define DEBUG_SINGLE_THREAD   0x400000
 433 #define DEBUG_WM        0x800000
 434 #define DEBUG_URB       0x1000000
 435 #define DEBUG_VS        0x2000000
 436
 437 #define DBG(...) do {                                           \
 438         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 439                 _mesa_printf(__VA_ARGS__);                      \
 440 } while(0)
 441
 442 #define PCI_CHIP_845_G                  0x2562
 443 #define PCI_CHIP_I830_M                 0x3577
 444 #define PCI_CHIP_I855_GM                0x3582
 445 #define PCI_CHIP_I865_G                 0x2572
 446 #define PCI_CHIP_I915_G                 0x2582
 447 #define PCI_CHIP_I915_GM                0x2592
 448 #define PCI_CHIP_I945_G                 0x2772
 449 #define PCI_CHIP_I945_GM                0x27A2
 450 #define PCI_CHIP_I945_GME               0x27AE
 451 #define PCI_CHIP_G33_G                  0x29C2
 452 #define PCI_CHIP_Q35_G                  0x29B2
 453 #define PCI_CHIP_Q33_G                  0x29D2
 454
 455
 456 /* ================================================================
 457  * intel_context.c:
 458  */
 459
 460 extern GLboolean intelInitContext(struct intel_context *intel,
 461                                   const __GLcontextModes * mesaVis,
 462                                   __DRIcontextPrivate * driContextPriv,
 463                                   void *sharedContextPrivate,
 464                                   struct dd_function_table *functions);
 465
 466 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 467
 468 extern void intelFinish(GLcontext * ctx);
 469 extern void intelFlush(GLcontext * ctx);
 470
 471 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 472
 473
 474 /* ================================================================
 475  * intel_state.c:
 476  */
 477 extern void intelInitStateFuncs(struct dd_function_table *functions);
 478
 479 #define COMPAREFUNC_ALWAYS              0
 480 #define COMPAREFUNC_NEVER               0x1
 481 #define COMPAREFUNC_LESS                0x2
 482 #define COMPAREFUNC_EQUAL               0x3
 483 #define COMPAREFUNC_LEQUAL              0x4
 484 #define COMPAREFUNC_GREATER             0x5
 485 #define COMPAREFUNC_NOTEQUAL            0x6
 486 #define COMPAREFUNC_GEQUAL              0x7
 487
 488 #define STENCILOP_KEEP                  0
 489 #define STENCILOP_ZERO                  0x1
 490 #define STENCILOP_REPLACE               0x2
 491 #define STENCILOP_INCRSAT               0x3
 492 #define STENCILOP_DECRSAT               0x4
 493 #define STENCILOP_INCR                  0x5
 494 #define STENCILOP_DECR                  0x6
 495 #define STENCILOP_INVERT                0x7
 496
 497 #define LOGICOP_CLEAR                   0
 498 #define LOGICOP_NOR                     0x1
 499 #define LOGICOP_AND_INV                 0x2
 500 #define LOGICOP_COPY_INV                0x3
 501 #define LOGICOP_AND_RVRSE               0x4
 502 #define LOGICOP_INV                     0x5
 503 #define LOGICOP_XOR                     0x6
 504 #define LOGICOP_NAND                    0x7
 505 #define LOGICOP_AND                     0x8
 506 #define LOGICOP_EQUIV                   0x9
 507 #define LOGICOP_NOOP                    0xa
 508 #define LOGICOP_OR_INV                  0xb
 509 #define LOGICOP_COPY                    0xc
 510 #define LOGICOP_OR_RVRSE                0xd
 511 #define LOGICOP_OR                      0xe
 512 #define LOGICOP_SET                     0xf
 513
 514 #define BLENDFACT_ZERO                  0x01
 515 #define BLENDFACT_ONE                   0x02
 516 #define BLENDFACT_SRC_COLR              0x03
 517 #define BLENDFACT_INV_SRC_COLR          0x04
 518 #define BLENDFACT_SRC_ALPHA             0x05
 519 #define BLENDFACT_INV_SRC_ALPHA         0x06
 520 #define BLENDFACT_DST_ALPHA             0x07
 521 #define BLENDFACT_INV_DST_ALPHA         0x08
 522 #define BLENDFACT_DST_COLR              0x09
 523 #define BLENDFACT_INV_DST_COLR          0x0a
 524 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 525 #define BLENDFACT_CONST_COLOR           0x0c
 526 #define BLENDFACT_INV_CONST_COLOR       0x0d
 527 #define BLENDFACT_CONST_ALPHA           0x0e
 528 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 529 #define BLENDFACT_MASK                  0x0f
 530
 531 enum {
 532    DRI_CONF_BO_REUSE_DISABLED,
 533    DRI_CONF_BO_REUSE_ALL
 534 };
 535
 536 extern int intel_translate_shadow_compare_func(GLenum func);
 537 extern int intel_translate_compare_func(GLenum func);
 538 extern int intel_translate_stencil_op(GLenum op);
 539 extern int intel_translate_blend_factor(GLenum factor);
 540 extern int intel_translate_logic_op(GLenum opcode);
 541
 542 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 543                     GLsizei width, GLsizei height);
 544
 545 void intel_update_renderbuffers(__DRIcontext *context,
 546                                 __DRIdrawable *drawable);
 547
 548 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 549                                   uint32_t buffer_id);
 550
 551 /*======================================================================
 552  * Inline conversion functions.
 553  * These are better-typed than the macros used previously:
 554  */
 555 static INLINE struct intel_context *
 556 intel_context(GLcontext * ctx)
 557 {
 558    return (struct intel_context *) ctx;
 559 }
 560
 561 static INLINE GLboolean
 562 is_power_of_two(uint32_t value)
 563 {
 564    return (value & (value - 1)) == 0;
 565 }
 566
 567 #endif