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 /**
  65  * Bits for intel->Fallback field
  66  */
  67 /*@{*/
  68 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  69 #define INTEL_FALLBACK_READ_BUFFER       0x2
  70 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  71 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  72 #define INTEL_FALLBACK_USER              0x10
  73 #define INTEL_FALLBACK_RENDERMODE        0x20
  74 #define INTEL_FALLBACK_TEXTURE           0x40
  75 #define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
  76 /*@}*/
  77
  78 extern void intelFallback(struct intel_context *intel, GLbitfield bit,
  79                           GLboolean mode);
  80 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  81
  82
  83 #define INTEL_WRITE_PART  0x1
  84 #define INTEL_WRITE_FULL  0x2
  85 #define INTEL_READ        0x4
  86
  87 #define INTEL_MAX_FIXUP 64
  88
  89 struct intel_sync_object {
  90    struct gl_sync_object Base;
  91
  92    /** Batch associated with this sync object */
  93    drm_intel_bo *bo;
  94 };
  95
  96 /**
  97  * intel_context is derived from Mesa's context class: GLcontext.
  98  */
  99 struct intel_context
 100 {
 101    GLcontext ctx;  /**< base class, must be first field */
 102
 103    struct
 104    {
 105       void (*destroy) (struct intel_context * intel);
 106       void (*emit_state) (struct intel_context * intel);
 107       void (*finish_batch) (struct intel_context * intel);
 108       void (*new_batch) (struct intel_context * intel);
 109       void (*emit_invarient_state) (struct intel_context * intel);
 110       void (*update_texture_state) (struct intel_context * intel);
 111
 112       void (*render_start) (struct intel_context * intel);
 113       void (*render_prevalidate) (struct intel_context * intel);
 114       void (*set_draw_region) (struct intel_context * intel,
 115                                struct intel_region * draw_regions[],
 116                                struct intel_region * depth_region,
 117                                GLuint num_regions);
 118
 119       void (*reduced_primitive_state) (struct intel_context * intel,
 120                                        GLenum rprim);
 121
 122       GLboolean (*check_vertex_size) (struct intel_context * intel,
 123                                       GLuint expected);
 124       void (*invalidate_state) (struct intel_context *intel,
 125                                 GLuint new_state);
 126
 127
 128       /* Metaops:
 129        */
 130       void (*install_meta_state) (struct intel_context * intel);
 131       void (*leave_meta_state) (struct intel_context * intel);
 132
 133       void (*meta_draw_region) (struct intel_context * intel,
 134                                 struct intel_region * draw_region,
 135                                 struct intel_region * depth_region);
 136
 137       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 138
 139       void (*meta_stencil_replace) (struct intel_context * intel,
 140                                     GLuint mask, GLuint clear);
 141
 142       void (*meta_depth_replace) (struct intel_context * intel);
 143
 144       void (*meta_texture_blend_replace) (struct intel_context * intel);
 145
 146       void (*meta_no_stencil_write) (struct intel_context * intel);
 147       void (*meta_no_depth_write) (struct intel_context * intel);
 148       void (*meta_no_texture) (struct intel_context * intel);
 149
 150       void (*meta_import_pixel_state) (struct intel_context * intel);
 151       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 152                                          GLint xoff, GLint yoff);
 153
 154       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 155                                         dri_bo * buffer,
 156                                         GLuint offset,
 157                                         GLuint pitch,
 158                                         GLuint height,
 159                                         GLenum format, GLenum type);
 160
 161       void (*assert_not_dirty) (struct intel_context *intel);
 162
 163       void (*debug_batch)(struct intel_context *intel);
 164    } vtbl;
 165
 166    struct dri_metaops meta;
 167
 168    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 169    GLuint NewGLState;
 170
 171    dri_bufmgr *bufmgr;
 172    unsigned int maxBatchSize;
 173
 174    /**
 175     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 176     */
 177    int gen;
 178    GLboolean needs_ff_sync;
 179    GLboolean is_ironlake;
 180    GLboolean is_g4x;
 181    GLboolean is_945;
 182    GLboolean has_luminance_srgb;
 183
 184    int urb_size;
 185
 186    struct intel_batchbuffer *batch;
 187    drm_intel_bo *first_post_swapbuffers_batch;
 188    GLboolean no_batch_wrap;
 189
 190    struct
 191    {
 192       GLuint id;
 193       uint32_t primitive;       /**< Current hardware primitive type */
 194       void (*flush) (struct intel_context *);
 195       GLubyte *start_ptr; /**< for i8xx */
 196       dri_bo *vb_bo;
 197       uint8_t *vb;
 198       unsigned int start_offset; /**< Byte offset of primitive sequence */
 199       unsigned int current_offset; /**< Byte offset of next vertex */
 200       unsigned int count;       /**< Number of vertices in current primitive */
 201    } prim;
 202
 203    GLuint stats_wm;
 204    GLboolean locked;
 205    char *prevLockFile;
 206    int prevLockLine;
 207
 208    /* Offsets of fields within the current vertex:
 209     */
 210    GLuint coloroffset;
 211    GLuint specoffset;
 212    GLuint wpos_offset;
 213    GLuint wpos_size;
 214
 215    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 216    GLuint vertex_attr_count;
 217
 218    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 219
 220    GLboolean hw_stencil;
 221    GLboolean hw_stipple;
 222    GLboolean depth_buffer_is_float;
 223    GLboolean no_rast;
 224    GLboolean no_hw;
 225    GLboolean always_flush_batch;
 226    GLboolean always_flush_cache;
 227
 228    /* 0 - nonconformant, best performance;
 229     * 1 - fallback to sw for known conformance bugs
 230     * 2 - always fallback to sw
 231     */
 232    GLuint conformance_mode;
 233
 234    /* State for intelvb.c and inteltris.c.
 235     */
 236    GLuint RenderIndex;
 237    GLmatrix ViewportMatrix;
 238    GLenum render_primitive;
 239    GLenum reduced_primitive;
 240    GLuint vertex_size;
 241    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 242
 243    /* Fallback rasterization functions
 244     */
 245    intel_point_func draw_point;
 246    intel_line_func draw_line;
 247    intel_tri_func draw_tri;
 248
 249    /**
 250     * Set if rendering has occured to the drawable's front buffer.
 251     *
 252     * This is used in the DRI2 case to detect that glFlush should also copy
 253     * the contents of the fake front buffer to the real front buffer.
 254     */
 255    GLboolean front_buffer_dirty;
 256
 257    /**
 258     * Track whether front-buffer rendering is currently enabled
 259     *
 260     * A separate flag is used to track this in order to support MRT more
 261     * easily.
 262     */
 263    GLboolean is_front_buffer_rendering;
 264    /**
 265     * Track whether front-buffer is the current read target.
 266     *
 267     * This is closely associated with is_front_buffer_rendering, but may
 268     * be set separately.  The DRI2 fake front buffer must be referenced
 269     * either way.
 270     */
 271    GLboolean is_front_buffer_reading;
 272
 273    GLboolean use_texture_tiling;
 274    GLboolean use_early_z;
 275    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 276
 277    drm_clip_rect_t draw_rect;
 278    drm_clip_rect_t scissor_rect;
 279
 280    int driFd;
 281
 282    __DRIcontext *driContext;
 283    __DRIdrawable *driDrawable;
 284    __DRIdrawable *driReadDrawable;
 285    __DRIscreen *driScreen;
 286    intelScreenPrivate *intelScreen;
 287
 288    /**
 289     * Configuration cache
 290     */
 291    driOptionCache optionCache;
 292 };
 293
 294 extern char *__progname;
 295
 296
 297 #define SUBPIXEL_X 0.125
 298 #define SUBPIXEL_Y 0.125
 299
 300 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 301 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 302 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 303
 304 static INLINE uint32_t
 305 U_FIXED(float value, uint32_t frac_bits)
 306 {
 307    value *= (1 << frac_bits);
 308    return value < 0 ? 0 : value;
 309 }
 310
 311 static INLINE uint32_t
 312 S_FIXED(float value, uint32_t frac_bits)
 313 {
 314    return value * (1 << frac_bits);
 315 }
 316
 317 #define INTEL_FIREVERTICES(intel)               \
 318 do {                                            \
 319    if ((intel)->prim.flush)                     \
 320       (intel)->prim.flush(intel);               \
 321 } while (0)
 322
 323 /* ================================================================
 324  * From linux kernel i386 header files, copes with odd sizes better
 325  * than COPY_DWORDS would:
 326  * XXX Put this in src/mesa/main/imports.h ???
 327  */
 328 #if defined(i386) || defined(__i386__)
 329 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 330 {
 331    int d0, d1, d2;
 332    __asm__ __volatile__(
 333       "rep ; movsl\n\t"
 334       "testb $2,%b4\n\t"
 335       "je 1f\n\t"
 336       "movsw\n"
 337       "1:\ttestb $1,%b4\n\t"
 338       "je 2f\n\t"
 339       "movsb\n"
 340       "2:"
 341       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 342       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 343       : "memory");
 344    return (to);
 345 }
 346 #else
 347 #define __memcpy(a,b,c) memcpy(a,b,c)
 348 #endif
 349
 350
 351 /* ================================================================
 352  * Debugging:
 353  */
 354 extern int INTEL_DEBUG;
 355
 356 #define DEBUG_TEXTURE   0x1
 357 #define DEBUG_STATE     0x2
 358 #define DEBUG_IOCTL     0x4
 359 #define DEBUG_BLIT      0x8
 360 #define DEBUG_MIPTREE   0x10
 361 #define DEBUG_FALLBACKS 0x20
 362 #define DEBUG_VERBOSE   0x40
 363 #define DEBUG_BATCH     0x80
 364 #define DEBUG_PIXEL     0x100
 365 #define DEBUG_BUFMGR    0x200
 366 #define DEBUG_REGION    0x400
 367 #define DEBUG_FBO       0x800
 368 #define DEBUG_LOCK      0x1000
 369 #define DEBUG_SYNC      0x2000
 370 #define DEBUG_PRIMS     0x4000
 371 #define DEBUG_VERTS     0x8000
 372 #define DEBUG_DRI       0x10000
 373 #define DEBUG_DMA       0x20000
 374 #define DEBUG_SANITY    0x40000
 375 #define DEBUG_SLEEP     0x80000
 376 #define DEBUG_STATS     0x100000
 377 #define DEBUG_TILE      0x200000
 378 #define DEBUG_SINGLE_THREAD   0x400000
 379 #define DEBUG_WM        0x800000
 380 #define DEBUG_URB       0x1000000
 381 #define DEBUG_VS        0x2000000
 382
 383 #define DBG(...) do {                                           \
 384         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 385                 _mesa_printf(__VA_ARGS__);                      \
 386 } while(0)
 387
 388 #define PCI_CHIP_845_G                  0x2562
 389 #define PCI_CHIP_I830_M                 0x3577
 390 #define PCI_CHIP_I855_GM                0x3582
 391 #define PCI_CHIP_I865_G                 0x2572
 392 #define PCI_CHIP_I915_G                 0x2582
 393 #define PCI_CHIP_I915_GM                0x2592
 394 #define PCI_CHIP_I945_G                 0x2772
 395 #define PCI_CHIP_I945_GM                0x27A2
 396 #define PCI_CHIP_I945_GME               0x27AE
 397 #define PCI_CHIP_G33_G                  0x29C2
 398 #define PCI_CHIP_Q35_G                  0x29B2
 399 #define PCI_CHIP_Q33_G                  0x29D2
 400
 401
 402 /* ================================================================
 403  * intel_context.c:
 404  */
 405
 406 extern GLboolean intelInitContext(struct intel_context *intel,
 407                                   const __GLcontextModes * mesaVis,
 408                                   __DRIcontext * driContextPriv,
 409                                   void *sharedContextPrivate,
 410                                   struct dd_function_table *functions);
 411
 412 extern void intelFinish(GLcontext * ctx);
 413 extern void intelFlush(GLcontext * ctx);
 414 extern void intel_flush(GLcontext * ctx, GLboolean needs_mi_flush);
 415
 416 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 417
 418 void intel_init_syncobj_functions(struct dd_function_table *functions);
 419
 420
 421 /* ================================================================
 422  * intel_state.c:
 423  */
 424 extern void intelInitStateFuncs(struct dd_function_table *functions);
 425
 426 #define COMPAREFUNC_ALWAYS              0
 427 #define COMPAREFUNC_NEVER               0x1
 428 #define COMPAREFUNC_LESS                0x2
 429 #define COMPAREFUNC_EQUAL               0x3
 430 #define COMPAREFUNC_LEQUAL              0x4
 431 #define COMPAREFUNC_GREATER             0x5
 432 #define COMPAREFUNC_NOTEQUAL            0x6
 433 #define COMPAREFUNC_GEQUAL              0x7
 434
 435 #define STENCILOP_KEEP                  0
 436 #define STENCILOP_ZERO                  0x1
 437 #define STENCILOP_REPLACE               0x2
 438 #define STENCILOP_INCRSAT               0x3
 439 #define STENCILOP_DECRSAT               0x4
 440 #define STENCILOP_INCR                  0x5
 441 #define STENCILOP_DECR                  0x6
 442 #define STENCILOP_INVERT                0x7
 443
 444 #define LOGICOP_CLEAR                   0
 445 #define LOGICOP_NOR                     0x1
 446 #define LOGICOP_AND_INV                 0x2
 447 #define LOGICOP_COPY_INV                0x3
 448 #define LOGICOP_AND_RVRSE               0x4
 449 #define LOGICOP_INV                     0x5
 450 #define LOGICOP_XOR                     0x6
 451 #define LOGICOP_NAND                    0x7
 452 #define LOGICOP_AND                     0x8
 453 #define LOGICOP_EQUIV                   0x9
 454 #define LOGICOP_NOOP                    0xa
 455 #define LOGICOP_OR_INV                  0xb
 456 #define LOGICOP_COPY                    0xc
 457 #define LOGICOP_OR_RVRSE                0xd
 458 #define LOGICOP_OR                      0xe
 459 #define LOGICOP_SET                     0xf
 460
 461 #define BLENDFACT_ZERO                  0x01
 462 #define BLENDFACT_ONE                   0x02
 463 #define BLENDFACT_SRC_COLR              0x03
 464 #define BLENDFACT_INV_SRC_COLR          0x04
 465 #define BLENDFACT_SRC_ALPHA             0x05
 466 #define BLENDFACT_INV_SRC_ALPHA         0x06
 467 #define BLENDFACT_DST_ALPHA             0x07
 468 #define BLENDFACT_INV_DST_ALPHA         0x08
 469 #define BLENDFACT_DST_COLR              0x09
 470 #define BLENDFACT_INV_DST_COLR          0x0a
 471 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 472 #define BLENDFACT_CONST_COLOR           0x0c
 473 #define BLENDFACT_INV_CONST_COLOR       0x0d
 474 #define BLENDFACT_CONST_ALPHA           0x0e
 475 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 476 #define BLENDFACT_MASK                  0x0f
 477
 478 enum {
 479    DRI_CONF_BO_REUSE_DISABLED,
 480    DRI_CONF_BO_REUSE_ALL
 481 };
 482
 483 extern int intel_translate_shadow_compare_func(GLenum func);
 484 extern int intel_translate_compare_func(GLenum func);
 485 extern int intel_translate_stencil_op(GLenum op);
 486 extern int intel_translate_blend_factor(GLenum factor);
 487 extern int intel_translate_logic_op(GLenum opcode);
 488
 489 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 490                     GLsizei width, GLsizei height);
 491
 492 void intel_update_renderbuffers(__DRIcontext *context,
 493                                 __DRIdrawable *drawable);
 494
 495 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 496                                   uint32_t buffer_id);
 497
 498 /*======================================================================
 499  * Inline conversion functions.
 500  * These are better-typed than the macros used previously:
 501  */
 502 static INLINE struct intel_context *
 503 intel_context(GLcontext * ctx)
 504 {
 505    return (struct intel_context *) ctx;
 506 }
 507
 508 static INLINE GLboolean
 509 is_power_of_two(uint32_t value)
 510 {
 511    return (value & (value - 1)) == 0;
 512 }
 513
 514 static INLINE void
 515 intel_bo_map_gtt_preferred(struct intel_context *intel,
 516                            drm_intel_bo *bo,
 517                            GLboolean write)
 518 {
 519    if (intel->intelScreen->kernel_exec_fencing)
 520       drm_intel_gem_bo_map_gtt(bo);
 521    else
 522       drm_intel_bo_map(bo, write);
 523 }
 524
 525 static INLINE void
 526 intel_bo_unmap_gtt_preferred(struct intel_context *intel,
 527                              drm_intel_bo *bo)
 528 {
 529    if (intel->intelScreen->kernel_exec_fencing)
 530       drm_intel_gem_bo_unmap_gtt(bo);
 531    else
 532       drm_intel_bo_unmap(bo);
 533 }
 534
 535 #endif