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 "drm.h"
  37 #include "intel_bufmgr.h"
  38
  39 #include "intel_screen.h"
  40 #include "intel_tex_obj.h"
  41 #include "i915_drm.h"
  42 #include "tnl/t_vertex.h"
  43
  44 #define TAG(x) intel##x
  45 #include "tnl_dd/t_dd_vertex.h"
  46 #undef TAG
  47
  48 #define DV_PF_555  (1<<8)
  49 #define DV_PF_565  (2<<8)
  50 #define DV_PF_8888 (3<<8)
  51 #define DV_PF_4444 (8<<8)
  52 #define DV_PF_1555 (9<<8)
  53
  54 struct intel_region;
  55 struct intel_context;
  56
  57 typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
  58                                 intelVertex *, intelVertex *);
  59 typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
  60                                  intelVertex *);
  61 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
  62
  63 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  64 #define INTEL_FALLBACK_READ_BUFFER       0x2
  65 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  66 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  67 #define INTEL_FALLBACK_USER              0x10
  68 #define INTEL_FALLBACK_RENDERMODE        0x20
  69 #define INTEL_FALLBACK_TEXTURE           0x40
  70
  71 extern void intelFallback(struct intel_context *intel, GLuint bit,
  72                           GLboolean mode);
  73 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  74
  75
  76 #define INTEL_WRITE_PART  0x1
  77 #define INTEL_WRITE_FULL  0x2
  78 #define INTEL_READ        0x4
  79
  80 #define INTEL_MAX_FIXUP 64
  81
  82 struct intel_context
  83 {
  84    GLcontext ctx;               /* the parent class */
  85
  86    struct
  87    {
  88       void (*destroy) (struct intel_context * intel);
  89       void (*emit_state) (struct intel_context * intel);
  90       void (*finish_batch) (struct intel_context * intel);
  91       void (*new_batch) (struct intel_context * intel);
  92       void (*emit_invarient_state) (struct intel_context * intel);
  93       void (*note_fence) (struct intel_context *intel, GLuint fence);
  94       void (*note_unlock) (struct intel_context *intel);
  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 {
 162       struct gl_fragment_program *bitmap_fp;
 163       struct gl_vertex_program *passthrough_vp;
 164       struct gl_buffer_object *texcoord_vbo;
 165
 166       struct gl_fragment_program *saved_fp;
 167       GLboolean saved_fp_enable;
 168       struct gl_vertex_program *saved_vp;
 169       GLboolean saved_vp_enable;
 170
 171       struct gl_fragment_program *tex2d_fp;
 172
 173       GLboolean saved_texcoord_enable;
 174       struct gl_buffer_object *saved_array_vbo, *saved_texcoord_vbo;
 175       GLenum saved_texcoord_type;
 176       GLsizei saved_texcoord_size, saved_texcoord_stride;
 177       const void *saved_texcoord_ptr;
 178       int saved_active_texture;
 179
 180       GLint saved_vp_x, saved_vp_y;
 181       GLsizei saved_vp_width, saved_vp_height;
 182       GLenum saved_matrix_mode;
 183    } meta;
 184
 185    GLint refcount;
 186    GLuint Fallback;
 187    GLuint NewGLState;
 188
 189    dri_bufmgr *bufmgr;
 190    unsigned int maxBatchSize;
 191
 192    struct intel_region *front_region;
 193    struct intel_region *back_region;
 194    struct intel_region *depth_region;
 195    GLboolean internal_viewport_call;
 196
 197    /**
 198     * This value indicates that the kernel memory manager is being used
 199     * instead of the fake client-side memory manager.
 200     */
 201    GLboolean ttm;
 202
 203    struct intel_batchbuffer *batch;
 204    GLboolean no_batch_wrap;
 205    unsigned batch_id;
 206
 207    struct
 208    {
 209       GLuint id;
 210       uint32_t primitive;       /**< Current hardware primitive type */
 211       void (*flush) (struct intel_context *);
 212       GLubyte *start_ptr; /**< for i8xx */
 213       dri_bo *vb_bo;
 214       uint8_t *vb;
 215       unsigned int start_offset; /**< Byte offset of primitive sequence */
 216       unsigned int current_offset; /**< Byte offset of next vertex */
 217       unsigned int count;       /**< Number of vertices in current primitive */
 218    } prim;
 219
 220    GLuint stats_wm;
 221    GLboolean locked;
 222    char *prevLockFile;
 223    int prevLockLine;
 224
 225    GLuint ClearColor565;
 226    GLuint ClearColor8888;
 227
 228    /* info for intel_clear_tris() */
 229    struct
 230    {
 231       struct gl_array_object *arrayObj;
 232       GLfloat vertices[4][3];
 233       GLfloat color[4][4];
 234    } clear;
 235
 236    /* Offsets of fields within the current vertex:
 237     */
 238    GLuint coloroffset;
 239    GLuint specoffset;
 240    GLuint wpos_offset;
 241    GLuint wpos_size;
 242
 243    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 244    GLuint vertex_attr_count;
 245
 246    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 247
 248    GLboolean hw_stencil;
 249    GLboolean hw_stipple;
 250    GLboolean depth_buffer_is_float;
 251    GLboolean no_rast;
 252    GLboolean always_flush_batch;
 253    GLboolean always_flush_cache;
 254
 255    /* 0 - nonconformant, best performance;
 256     * 1 - fallback to sw for known conformance bugs
 257     * 2 - always fallback to sw
 258     */
 259    GLuint conformance_mode;
 260
 261    /* State for intelvb.c and inteltris.c.
 262     */
 263    GLuint RenderIndex;
 264    GLmatrix ViewportMatrix;
 265    GLenum render_primitive;
 266    GLenum reduced_primitive;
 267    GLuint vertex_size;
 268    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 269
 270    /* Fallback rasterization functions
 271     */
 272    intel_point_func draw_point;
 273    intel_line_func draw_line;
 274    intel_tri_func draw_tri;
 275
 276    /* These refer to the current drawing buffer:
 277     */
 278    struct gl_texture_object *frame_buffer_texobj;
 279    /**
 280     * Set to true if a single constant cliprect should be used in the
 281     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 282     * flush time while the lock is held.
 283     */
 284    GLboolean constant_cliprect;
 285
 286    /**
 287     * In !constant_cliprect mode, set to true if the front cliprects should be
 288     * used instead of back.
 289     */
 290    GLboolean front_cliprects;
 291
 292    /**
 293     * Set if rendering has occured to the drawable's front buffer.
 294     *
 295     * This is used in the DRI2 case to detect that glFlush should also copy
 296     * the contents of the fake front buffer to the real front buffer.
 297     */
 298    GLboolean front_buffer_dirty;
 299
 300    /**
 301     * Track whether front-buffer rendering is currently enabled
 302     *
 303     * A separate flag is used to track this in order to support MRT more
 304     * easily.
 305     */
 306    GLboolean is_front_buffer_rendering;
 307
 308    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 309
 310    int perf_boxes;
 311
 312    GLuint do_usleeps;
 313    int do_irqs;
 314    GLuint irqsEmitted;
 315
 316    GLboolean scissor;
 317    drm_clip_rect_t draw_rect;
 318    drm_clip_rect_t scissor_rect;
 319
 320    drm_context_t hHWContext;
 321    drmLock *driHwLock;
 322    int driFd;
 323
 324    __DRIcontextPrivate *driContext;
 325    __DRIdrawablePrivate *driDrawable;
 326    __DRIdrawablePrivate *driReadDrawable;
 327    __DRIscreenPrivate *driScreen;
 328    intelScreenPrivate *intelScreen;
 329    volatile struct drm_i915_sarea *sarea;
 330
 331    GLuint lastStamp;
 332
 333    GLboolean no_hw;
 334
 335    /**
 336     * Configuration cache
 337     */
 338    driOptionCache optionCache;
 339
 340    int64_t swap_ust;
 341    int64_t swap_missed_ust;
 342
 343    GLuint swap_count;
 344    GLuint swap_missed_count;
 345 };
 346
 347 /* These are functions now:
 348  */
 349 void LOCK_HARDWARE( struct intel_context *intel );
 350 void UNLOCK_HARDWARE( struct intel_context *intel );
 351
 352 extern char *__progname;
 353
 354
 355 #define SUBPIXEL_X 0.125
 356 #define SUBPIXEL_Y 0.125
 357
 358 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 359 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 360 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 361
 362 #define INTEL_FIREVERTICES(intel)               \
 363 do {                                            \
 364    if ((intel)->prim.flush)                     \
 365       (intel)->prim.flush(intel);               \
 366 } while (0)
 367
 368 /* ================================================================
 369  * Color packing:
 370  */
 371
 372 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 373   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 374
 375 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 376   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 377     ((a) ? 0x8000 : 0))
 378
 379 #define INTEL_PACKCOLOR565(r,g,b) \
 380   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 381
 382 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 383   ((a<<24) | (r<<16) | (g<<8) | b)
 384
 385 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 386 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 387  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 388   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 389    0)))
 390
 391 /* ================================================================
 392  * From linux kernel i386 header files, copes with odd sizes better
 393  * than COPY_DWORDS would:
 394  * XXX Put this in src/mesa/main/imports.h ???
 395  */
 396 #if defined(i386) || defined(__i386__)
 397 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 398 {
 399    int d0, d1, d2;
 400    __asm__ __volatile__(
 401       "rep ; movsl\n\t"
 402       "testb $2,%b4\n\t"
 403       "je 1f\n\t"
 404       "movsw\n"
 405       "1:\ttestb $1,%b4\n\t"
 406       "je 2f\n\t"
 407       "movsb\n"
 408       "2:"
 409       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 410       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 411       : "memory");
 412    return (to);
 413 }
 414 #else
 415 #define __memcpy(a,b,c) memcpy(a,b,c)
 416 #endif
 417
 418
 419 /* ================================================================
 420  * Debugging:
 421  */
 422 extern int INTEL_DEBUG;
 423
 424 #define DEBUG_TEXTURE   0x1
 425 #define DEBUG_STATE     0x2
 426 #define DEBUG_IOCTL     0x4
 427 #define DEBUG_BLIT      0x8
 428 #define DEBUG_MIPTREE   0x10
 429 #define DEBUG_FALLBACKS 0x20
 430 #define DEBUG_VERBOSE   0x40
 431 #define DEBUG_BATCH     0x80
 432 #define DEBUG_PIXEL     0x100
 433 #define DEBUG_BUFMGR    0x200
 434 #define DEBUG_REGION    0x400
 435 #define DEBUG_FBO       0x800
 436 #define DEBUG_LOCK      0x1000
 437 #define DEBUG_SYNC      0x2000
 438 #define DEBUG_PRIMS     0x4000
 439 #define DEBUG_VERTS     0x8000
 440 #define DEBUG_DRI       0x10000
 441 #define DEBUG_DMA       0x20000
 442 #define DEBUG_SANITY    0x40000
 443 #define DEBUG_SLEEP     0x80000
 444 #define DEBUG_STATS     0x100000
 445 #define DEBUG_TILE      0x200000
 446 #define DEBUG_SINGLE_THREAD   0x400000
 447 #define DEBUG_WM        0x800000
 448 #define DEBUG_URB       0x1000000
 449 #define DEBUG_VS        0x2000000
 450
 451 #define DBG(...) do {                                           \
 452         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 453                 _mesa_printf(__VA_ARGS__);                      \
 454 } while(0)
 455
 456 #define PCI_CHIP_845_G                  0x2562
 457 #define PCI_CHIP_I830_M                 0x3577
 458 #define PCI_CHIP_I855_GM                0x3582
 459 #define PCI_CHIP_I865_G                 0x2572
 460 #define PCI_CHIP_I915_G                 0x2582
 461 #define PCI_CHIP_I915_GM                0x2592
 462 #define PCI_CHIP_I945_G                 0x2772
 463 #define PCI_CHIP_I945_GM                0x27A2
 464 #define PCI_CHIP_I945_GME               0x27AE
 465 #define PCI_CHIP_G33_G                  0x29C2
 466 #define PCI_CHIP_Q35_G                  0x29B2
 467 #define PCI_CHIP_Q33_G                  0x29D2
 468
 469
 470 /* ================================================================
 471  * intel_context.c:
 472  */
 473
 474 extern GLboolean intelInitContext(struct intel_context *intel,
 475                                   const __GLcontextModes * mesaVis,
 476                                   __DRIcontextPrivate * driContextPriv,
 477                                   void *sharedContextPrivate,
 478                                   struct dd_function_table *functions);
 479
 480 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 481
 482 extern void intelFinish(GLcontext * ctx);
 483 extern void intelFlush(GLcontext * ctx);
 484
 485 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 486
 487
 488 /* ================================================================
 489  * intel_state.c:
 490  */
 491 extern void intelInitStateFuncs(struct dd_function_table *functions);
 492
 493 #define COMPAREFUNC_ALWAYS              0
 494 #define COMPAREFUNC_NEVER               0x1
 495 #define COMPAREFUNC_LESS                0x2
 496 #define COMPAREFUNC_EQUAL               0x3
 497 #define COMPAREFUNC_LEQUAL              0x4
 498 #define COMPAREFUNC_GREATER             0x5
 499 #define COMPAREFUNC_NOTEQUAL            0x6
 500 #define COMPAREFUNC_GEQUAL              0x7
 501
 502 #define STENCILOP_KEEP                  0
 503 #define STENCILOP_ZERO                  0x1
 504 #define STENCILOP_REPLACE               0x2
 505 #define STENCILOP_INCRSAT               0x3
 506 #define STENCILOP_DECRSAT               0x4
 507 #define STENCILOP_INCR                  0x5
 508 #define STENCILOP_DECR                  0x6
 509 #define STENCILOP_INVERT                0x7
 510
 511 #define LOGICOP_CLEAR                   0
 512 #define LOGICOP_NOR                     0x1
 513 #define LOGICOP_AND_INV                 0x2
 514 #define LOGICOP_COPY_INV                0x3
 515 #define LOGICOP_AND_RVRSE               0x4
 516 #define LOGICOP_INV                     0x5
 517 #define LOGICOP_XOR                     0x6
 518 #define LOGICOP_NAND                    0x7
 519 #define LOGICOP_AND                     0x8
 520 #define LOGICOP_EQUIV                   0x9
 521 #define LOGICOP_NOOP                    0xa
 522 #define LOGICOP_OR_INV                  0xb
 523 #define LOGICOP_COPY                    0xc
 524 #define LOGICOP_OR_RVRSE                0xd
 525 #define LOGICOP_OR                      0xe
 526 #define LOGICOP_SET                     0xf
 527
 528 #define BLENDFACT_ZERO                  0x01
 529 #define BLENDFACT_ONE                   0x02
 530 #define BLENDFACT_SRC_COLR              0x03
 531 #define BLENDFACT_INV_SRC_COLR          0x04
 532 #define BLENDFACT_SRC_ALPHA             0x05
 533 #define BLENDFACT_INV_SRC_ALPHA         0x06
 534 #define BLENDFACT_DST_ALPHA             0x07
 535 #define BLENDFACT_INV_DST_ALPHA         0x08
 536 #define BLENDFACT_DST_COLR              0x09
 537 #define BLENDFACT_INV_DST_COLR          0x0a
 538 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 539 #define BLENDFACT_CONST_COLOR           0x0c
 540 #define BLENDFACT_INV_CONST_COLOR       0x0d
 541 #define BLENDFACT_CONST_ALPHA           0x0e
 542 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 543 #define BLENDFACT_MASK                  0x0f
 544
 545 enum {
 546    DRI_CONF_BO_REUSE_DISABLED,
 547    DRI_CONF_BO_REUSE_ALL
 548 };
 549
 550 extern int intel_translate_shadow_compare_func(GLenum func);
 551 extern int intel_translate_compare_func(GLenum func);
 552 extern int intel_translate_stencil_op(GLenum op);
 553 extern int intel_translate_blend_factor(GLenum factor);
 554 extern int intel_translate_logic_op(GLenum opcode);
 555
 556 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 557                     GLsizei width, GLsizei height);
 558
 559 void intel_update_renderbuffers(__DRIcontext *context,
 560                                 __DRIdrawable *drawable);
 561
 562 /*======================================================================
 563  * Inline conversion functions.
 564  * These are better-typed than the macros used previously:
 565  */
 566 static INLINE struct intel_context *
 567 intel_context(GLcontext * ctx)
 568 {
 569    return (struct intel_context *) ctx;
 570 }
 571
 572 static INLINE GLboolean
 573 is_power_of_two(uint32_t value)
 574 {
 575    return (value & (value - 1)) == 0;
 576 }
 577
 578 #endif