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 (*update_texture_state) (struct intel_context * intel);
  95
  96       void (*render_start) (struct intel_context * intel);
  97       void (*render_prevalidate) (struct intel_context * intel);
  98       void (*set_draw_region) (struct intel_context * intel,
  99                                struct intel_region * draw_regions[],
 100                                struct intel_region * depth_region,
 101                                GLuint num_regions);
 102
 103       GLuint (*flush_cmd) (void);
 104
 105       void (*reduced_primitive_state) (struct intel_context * intel,
 106                                        GLenum rprim);
 107
 108       GLboolean (*check_vertex_size) (struct intel_context * intel,
 109                                       GLuint expected);
 110       void (*invalidate_state) (struct intel_context *intel,
 111                                 GLuint new_state);
 112
 113
 114       /* Metaops:
 115        */
 116       void (*install_meta_state) (struct intel_context * intel);
 117       void (*leave_meta_state) (struct intel_context * intel);
 118
 119       void (*meta_draw_region) (struct intel_context * intel,
 120                                 struct intel_region * draw_region,
 121                                 struct intel_region * depth_region);
 122
 123       void (*meta_draw_quad)(struct intel_context *intel,
 124                              GLfloat x0, GLfloat x1,
 125                              GLfloat y0, GLfloat y1,
 126                              GLfloat z,
 127                              GLuint color, /* ARGB32 */
 128                              GLfloat s0, GLfloat s1,
 129                              GLfloat t0, GLfloat t1);
 130
 131       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 132
 133       void (*meta_stencil_replace) (struct intel_context * intel,
 134                                     GLuint mask, GLuint clear);
 135
 136       void (*meta_depth_replace) (struct intel_context * intel);
 137
 138       void (*meta_texture_blend_replace) (struct intel_context * intel);
 139
 140       void (*meta_no_stencil_write) (struct intel_context * intel);
 141       void (*meta_no_depth_write) (struct intel_context * intel);
 142       void (*meta_no_texture) (struct intel_context * intel);
 143
 144       void (*meta_import_pixel_state) (struct intel_context * intel);
 145       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 146                                          GLint xoff, GLint yoff);
 147
 148       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 149                                         dri_bo * buffer,
 150                                         GLuint offset,
 151                                         GLuint pitch,
 152                                         GLuint height,
 153                                         GLenum format, GLenum type);
 154
 155       void (*assert_not_dirty) (struct intel_context *intel);
 156
 157       void (*debug_batch)(struct intel_context *intel);
 158    } vtbl;
 159
 160    struct {
 161       struct gl_fragment_program *bitmap_fp;
 162       struct gl_vertex_program *passthrough_vp;
 163       struct gl_buffer_object *texcoord_vbo;
 164
 165       struct gl_fragment_program *saved_fp;
 166       GLboolean saved_fp_enable;
 167       struct gl_vertex_program *saved_vp;
 168       GLboolean saved_vp_enable;
 169
 170       struct gl_fragment_program *tex2d_fp;
 171
 172       GLboolean saved_texcoord_enable;
 173       struct gl_buffer_object *saved_array_vbo, *saved_texcoord_vbo;
 174       GLenum saved_texcoord_type;
 175       GLsizei saved_texcoord_size, saved_texcoord_stride;
 176       const void *saved_texcoord_ptr;
 177       int saved_active_texture;
 178
 179       GLint saved_vp_x, saved_vp_y;
 180       GLsizei saved_vp_width, saved_vp_height;
 181       GLenum saved_matrix_mode;
 182    } meta;
 183
 184    GLint refcount;
 185    GLuint Fallback;
 186    GLuint NewGLState;
 187
 188    dri_bufmgr *bufmgr;
 189    unsigned int maxBatchSize;
 190
 191    struct intel_region *front_region;
 192    struct intel_region *back_region;
 193    struct intel_region *depth_region;
 194    GLboolean internal_viewport_call;
 195
 196    /**
 197     * This value indicates that the kernel memory manager is being used
 198     * instead of the fake client-side memory manager.
 199     */
 200    GLboolean ttm;
 201
 202    struct intel_batchbuffer *batch;
 203    GLboolean no_batch_wrap;
 204    unsigned batch_id;
 205
 206    struct
 207    {
 208       GLuint id;
 209       uint32_t primitive;       /**< Current hardware primitive type */
 210       void (*flush) (struct intel_context *);
 211       GLubyte *start_ptr; /**< for i8xx */
 212       dri_bo *vb_bo;
 213       uint8_t *vb;
 214       unsigned int start_offset; /**< Byte offset of primitive sequence */
 215       unsigned int current_offset; /**< Byte offset of next vertex */
 216       unsigned int count;       /**< Number of vertices in current primitive */
 217    } prim;
 218
 219    GLuint stats_wm;
 220    GLboolean locked;
 221    char *prevLockFile;
 222    int prevLockLine;
 223
 224    GLuint ClearColor565;
 225    GLuint ClearColor8888;
 226
 227    /* info for intel_clear_tris() */
 228    struct
 229    {
 230       struct gl_array_object *arrayObj;
 231       GLfloat vertices[4][3];
 232       GLfloat color[4][4];
 233    } clear;
 234
 235    /* Offsets of fields within the current vertex:
 236     */
 237    GLuint coloroffset;
 238    GLuint specoffset;
 239    GLuint wpos_offset;
 240    GLuint wpos_size;
 241
 242    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 243    GLuint vertex_attr_count;
 244
 245    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 246
 247    GLboolean hw_stencil;
 248    GLboolean hw_stipple;
 249    GLboolean depth_buffer_is_float;
 250    GLboolean no_rast;
 251    GLboolean always_flush_batch;
 252    GLboolean always_flush_cache;
 253
 254    /* 0 - nonconformant, best performance;
 255     * 1 - fallback to sw for known conformance bugs
 256     * 2 - always fallback to sw
 257     */
 258    GLuint conformance_mode;
 259
 260    /* State for intelvb.c and inteltris.c.
 261     */
 262    GLuint RenderIndex;
 263    GLmatrix ViewportMatrix;
 264    GLenum render_primitive;
 265    GLenum reduced_primitive;
 266    GLuint vertex_size;
 267    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 268
 269    /* Fallback rasterization functions
 270     */
 271    intel_point_func draw_point;
 272    intel_line_func draw_line;
 273    intel_tri_func draw_tri;
 274
 275    /* These refer to the current drawing buffer:
 276     */
 277    struct gl_texture_object *frame_buffer_texobj;
 278    /**
 279     * Set to true if a single constant cliprect should be used in the
 280     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 281     * flush time while the lock is held.
 282     */
 283    GLboolean constant_cliprect;
 284
 285    /**
 286     * In !constant_cliprect mode, set to true if the front cliprects should be
 287     * used instead of back.
 288     */
 289    GLboolean front_cliprects;
 290
 291    /**
 292     * Set if rendering has occured to the drawable's front buffer.
 293     *
 294     * This is used in the DRI2 case to detect that glFlush should also copy
 295     * the contents of the fake front buffer to the real front buffer.
 296     */
 297    GLboolean front_buffer_dirty;
 298
 299    /**
 300     * Track whether front-buffer rendering is currently enabled
 301     *
 302     * A separate flag is used to track this in order to support MRT more
 303     * easily.
 304     */
 305    GLboolean is_front_buffer_rendering;
 306    /**
 307     * Track whether front-buffer is the current read target.
 308     *
 309     * This is closely associated with is_front_buffer_rendering, but may
 310     * be set separately.  The DRI2 fake front buffer must be referenced
 311     * either way.
 312     */
 313    GLboolean is_front_buffer_reading;
 314
 315    GLboolean use_texture_tiling;
 316    GLboolean use_early_z;
 317
 318    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 319
 320    int perf_boxes;
 321
 322    GLuint do_usleeps;
 323    int do_irqs;
 324    GLuint irqsEmitted;
 325
 326    GLboolean scissor;
 327    drm_clip_rect_t draw_rect;
 328    drm_clip_rect_t scissor_rect;
 329
 330    drm_context_t hHWContext;
 331    drmLock *driHwLock;
 332    int driFd;
 333
 334    __DRIcontextPrivate *driContext;
 335    __DRIdrawablePrivate *driDrawable;
 336    __DRIdrawablePrivate *driReadDrawable;
 337    __DRIscreenPrivate *driScreen;
 338    intelScreenPrivate *intelScreen;
 339    volatile struct drm_i915_sarea *sarea;
 340
 341    GLuint lastStamp;
 342
 343    GLboolean no_hw;
 344
 345    /**
 346     * Configuration cache
 347     */
 348    driOptionCache optionCache;
 349
 350    int64_t swap_ust;
 351    int64_t swap_missed_ust;
 352
 353    GLuint swap_count;
 354    GLuint swap_missed_count;
 355 };
 356
 357 /* These are functions now:
 358  */
 359 void LOCK_HARDWARE( struct intel_context *intel );
 360 void UNLOCK_HARDWARE( struct intel_context *intel );
 361
 362 extern char *__progname;
 363
 364
 365 #define SUBPIXEL_X 0.125
 366 #define SUBPIXEL_Y 0.125
 367
 368 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 369 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 370 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 371
 372 #define INTEL_FIREVERTICES(intel)               \
 373 do {                                            \
 374    if ((intel)->prim.flush)                     \
 375       (intel)->prim.flush(intel);               \
 376 } while (0)
 377
 378 /* ================================================================
 379  * Color packing:
 380  */
 381
 382 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 383   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 384
 385 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 386   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 387     ((a) ? 0x8000 : 0))
 388
 389 #define INTEL_PACKCOLOR565(r,g,b) \
 390   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 391
 392 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 393   ((a<<24) | (r<<16) | (g<<8) | b)
 394
 395 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 396 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 397  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 398   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 399    0)))
 400
 401 /* ================================================================
 402  * From linux kernel i386 header files, copes with odd sizes better
 403  * than COPY_DWORDS would:
 404  * XXX Put this in src/mesa/main/imports.h ???
 405  */
 406 #if defined(i386) || defined(__i386__)
 407 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 408 {
 409    int d0, d1, d2;
 410    __asm__ __volatile__(
 411       "rep ; movsl\n\t"
 412       "testb $2,%b4\n\t"
 413       "je 1f\n\t"
 414       "movsw\n"
 415       "1:\ttestb $1,%b4\n\t"
 416       "je 2f\n\t"
 417       "movsb\n"
 418       "2:"
 419       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 420       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 421       : "memory");
 422    return (to);
 423 }
 424 #else
 425 #define __memcpy(a,b,c) memcpy(a,b,c)
 426 #endif
 427
 428
 429 /* ================================================================
 430  * Debugging:
 431  */
 432 extern int INTEL_DEBUG;
 433
 434 #define DEBUG_TEXTURE   0x1
 435 #define DEBUG_STATE     0x2
 436 #define DEBUG_IOCTL     0x4
 437 #define DEBUG_BLIT      0x8
 438 #define DEBUG_MIPTREE   0x10
 439 #define DEBUG_FALLBACKS 0x20
 440 #define DEBUG_VERBOSE   0x40
 441 #define DEBUG_BATCH     0x80
 442 #define DEBUG_PIXEL     0x100
 443 #define DEBUG_BUFMGR    0x200
 444 #define DEBUG_REGION    0x400
 445 #define DEBUG_FBO       0x800
 446 #define DEBUG_LOCK      0x1000
 447 #define DEBUG_SYNC      0x2000
 448 #define DEBUG_PRIMS     0x4000
 449 #define DEBUG_VERTS     0x8000
 450 #define DEBUG_DRI       0x10000
 451 #define DEBUG_DMA       0x20000
 452 #define DEBUG_SANITY    0x40000
 453 #define DEBUG_SLEEP     0x80000
 454 #define DEBUG_STATS     0x100000
 455 #define DEBUG_TILE      0x200000
 456 #define DEBUG_SINGLE_THREAD   0x400000
 457 #define DEBUG_WM        0x800000
 458 #define DEBUG_URB       0x1000000
 459 #define DEBUG_VS        0x2000000
 460
 461 #define DBG(...) do {                                           \
 462         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 463                 _mesa_printf(__VA_ARGS__);                      \
 464 } while(0)
 465
 466 #define PCI_CHIP_845_G                  0x2562
 467 #define PCI_CHIP_I830_M                 0x3577
 468 #define PCI_CHIP_I855_GM                0x3582
 469 #define PCI_CHIP_I865_G                 0x2572
 470 #define PCI_CHIP_I915_G                 0x2582
 471 #define PCI_CHIP_I915_GM                0x2592
 472 #define PCI_CHIP_I945_G                 0x2772
 473 #define PCI_CHIP_I945_GM                0x27A2
 474 #define PCI_CHIP_I945_GME               0x27AE
 475 #define PCI_CHIP_G33_G                  0x29C2
 476 #define PCI_CHIP_Q35_G                  0x29B2
 477 #define PCI_CHIP_Q33_G                  0x29D2
 478
 479
 480 /* ================================================================
 481  * intel_context.c:
 482  */
 483
 484 extern GLboolean intelInitContext(struct intel_context *intel,
 485                                   const __GLcontextModes * mesaVis,
 486                                   __DRIcontextPrivate * driContextPriv,
 487                                   void *sharedContextPrivate,
 488                                   struct dd_function_table *functions);
 489
 490 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 491
 492 extern void intelFinish(GLcontext * ctx);
 493 extern void intelFlush(GLcontext * ctx);
 494
 495 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 496
 497
 498 /* ================================================================
 499  * intel_state.c:
 500  */
 501 extern void intelInitStateFuncs(struct dd_function_table *functions);
 502
 503 #define COMPAREFUNC_ALWAYS              0
 504 #define COMPAREFUNC_NEVER               0x1
 505 #define COMPAREFUNC_LESS                0x2
 506 #define COMPAREFUNC_EQUAL               0x3
 507 #define COMPAREFUNC_LEQUAL              0x4
 508 #define COMPAREFUNC_GREATER             0x5
 509 #define COMPAREFUNC_NOTEQUAL            0x6
 510 #define COMPAREFUNC_GEQUAL              0x7
 511
 512 #define STENCILOP_KEEP                  0
 513 #define STENCILOP_ZERO                  0x1
 514 #define STENCILOP_REPLACE               0x2
 515 #define STENCILOP_INCRSAT               0x3
 516 #define STENCILOP_DECRSAT               0x4
 517 #define STENCILOP_INCR                  0x5
 518 #define STENCILOP_DECR                  0x6
 519 #define STENCILOP_INVERT                0x7
 520
 521 #define LOGICOP_CLEAR                   0
 522 #define LOGICOP_NOR                     0x1
 523 #define LOGICOP_AND_INV                 0x2
 524 #define LOGICOP_COPY_INV                0x3
 525 #define LOGICOP_AND_RVRSE               0x4
 526 #define LOGICOP_INV                     0x5
 527 #define LOGICOP_XOR                     0x6
 528 #define LOGICOP_NAND                    0x7
 529 #define LOGICOP_AND                     0x8
 530 #define LOGICOP_EQUIV                   0x9
 531 #define LOGICOP_NOOP                    0xa
 532 #define LOGICOP_OR_INV                  0xb
 533 #define LOGICOP_COPY                    0xc
 534 #define LOGICOP_OR_RVRSE                0xd
 535 #define LOGICOP_OR                      0xe
 536 #define LOGICOP_SET                     0xf
 537
 538 #define BLENDFACT_ZERO                  0x01
 539 #define BLENDFACT_ONE                   0x02
 540 #define BLENDFACT_SRC_COLR              0x03
 541 #define BLENDFACT_INV_SRC_COLR          0x04
 542 #define BLENDFACT_SRC_ALPHA             0x05
 543 #define BLENDFACT_INV_SRC_ALPHA         0x06
 544 #define BLENDFACT_DST_ALPHA             0x07
 545 #define BLENDFACT_INV_DST_ALPHA         0x08
 546 #define BLENDFACT_DST_COLR              0x09
 547 #define BLENDFACT_INV_DST_COLR          0x0a
 548 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 549 #define BLENDFACT_CONST_COLOR           0x0c
 550 #define BLENDFACT_INV_CONST_COLOR       0x0d
 551 #define BLENDFACT_CONST_ALPHA           0x0e
 552 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 553 #define BLENDFACT_MASK                  0x0f
 554
 555 enum {
 556    DRI_CONF_BO_REUSE_DISABLED,
 557    DRI_CONF_BO_REUSE_ALL
 558 };
 559
 560 extern int intel_translate_shadow_compare_func(GLenum func);
 561 extern int intel_translate_compare_func(GLenum func);
 562 extern int intel_translate_stencil_op(GLenum op);
 563 extern int intel_translate_blend_factor(GLenum factor);
 564 extern int intel_translate_logic_op(GLenum opcode);
 565
 566 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 567                     GLsizei width, GLsizei height);
 568
 569 void intel_update_renderbuffers(__DRIcontext *context,
 570                                 __DRIdrawable *drawable);
 571
 572 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 573                                   uint32_t buffer_id);
 574
 575 /*======================================================================
 576  * Inline conversion functions.
 577  * These are better-typed than the macros used previously:
 578  */
 579 static INLINE struct intel_context *
 580 intel_context(GLcontext * ctx)
 581 {
 582    return (struct intel_context *) ctx;
 583 }
 584
 585 static INLINE GLboolean
 586 is_power_of_two(uint32_t value)
 587 {
 588    return (value & (value - 1)) == 0;
 589 }
 590
 591 #endif