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 #include <stdbool.h>
  33 #include "main/mtypes.h"
  34 #include "main/mm.h"
  35 #include "dri_metaops.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39         /* Evil hack for using libdrm in a c++ compiler. */
  40         #define virtual virt
  41 #endif
  42
  43 #include "drm.h"
  44 #include "intel_bufmgr.h"
  45
  46 #include "intel_screen.h"
  47 #include "intel_tex_obj.h"
  48 #include "i915_drm.h"
  49
  50 #ifdef __cplusplus
  51         #undef virtual
  52 }
  53 #endif
  54
  55 #include "tnl/t_vertex.h"
  56
  57 #define TAG(x) intel##x
  58 #include "tnl_dd/t_dd_vertex.h"
  59 #undef TAG
  60
  61 #define DV_PF_555  (1<<8)
  62 #define DV_PF_565  (2<<8)
  63 #define DV_PF_8888 (3<<8)
  64 #define DV_PF_4444 (8<<8)
  65 #define DV_PF_1555 (9<<8)
  66
  67 struct intel_region;
  68 struct intel_context;
  69
  70 typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
  71                                 intelVertex *, intelVertex *);
  72 typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
  73                                  intelVertex *);
  74 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
  75
  76 /**
  77  * Bits for intel->Fallback field
  78  */
  79 /*@{*/
  80 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  81 #define INTEL_FALLBACK_READ_BUFFER       0x2
  82 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  83 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  84 #define INTEL_FALLBACK_USER              0x10
  85 #define INTEL_FALLBACK_RENDERMODE        0x20
  86 #define INTEL_FALLBACK_TEXTURE           0x40
  87 #define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
  88 /*@}*/
  89
  90 extern void intelFallback(struct intel_context *intel, GLbitfield bit,
  91                           GLboolean mode);
  92 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  93
  94
  95 #define INTEL_WRITE_PART  0x1
  96 #define INTEL_WRITE_FULL  0x2
  97 #define INTEL_READ        0x4
  98
  99 #define INTEL_MAX_FIXUP 64
 100
 101 #ifndef likely
 102 #ifdef __GNUC__
 103 #define likely(expr) (__builtin_expect(expr, 1))
 104 #define unlikely(expr) (__builtin_expect(expr, 0))
 105 #else
 106 #define likely(expr) (expr)
 107 #define unlikely(expr) (expr)
 108 #endif
 109 #endif
 110
 111 struct intel_sync_object {
 112    struct gl_sync_object Base;
 113
 114    /** Batch associated with this sync object */
 115    drm_intel_bo *bo;
 116 };
 117
 118 /**
 119  * intel_context is derived from Mesa's context class: struct gl_context.
 120  */
 121 struct intel_context
 122 {
 123    struct gl_context ctx;  /**< base class, must be first field */
 124
 125    struct
 126    {
 127       void (*destroy) (struct intel_context * intel);
 128       void (*emit_state) (struct intel_context * intel);
 129       void (*finish_batch) (struct intel_context * intel);
 130       void (*new_batch) (struct intel_context * intel);
 131       void (*emit_invarient_state) (struct intel_context * intel);
 132       void (*update_texture_state) (struct intel_context * intel);
 133
 134       void (*render_start) (struct intel_context * intel);
 135       void (*render_prevalidate) (struct intel_context * intel);
 136       void (*set_draw_region) (struct intel_context * intel,
 137                                struct intel_region * draw_regions[],
 138                                struct intel_region * depth_region,
 139                                GLuint num_regions);
 140
 141       void (*reduced_primitive_state) (struct intel_context * intel,
 142                                        GLenum rprim);
 143
 144       GLboolean (*check_vertex_size) (struct intel_context * intel,
 145                                       GLuint expected);
 146       void (*invalidate_state) (struct intel_context *intel,
 147                                 GLuint new_state);
 148
 149       void (*assert_not_dirty) (struct intel_context *intel);
 150
 151       void (*debug_batch)(struct intel_context *intel);
 152       bool (*render_target_supported)(gl_format format);
 153    } vtbl;
 154
 155    struct dri_metaops meta;
 156
 157    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 158    GLuint NewGLState;
 159
 160    dri_bufmgr *bufmgr;
 161    unsigned int maxBatchSize;
 162
 163    /**
 164     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 165     */
 166    int gen;
 167    GLboolean needs_ff_sync;
 168    GLboolean is_g4x;
 169    GLboolean is_945;
 170    GLboolean has_luminance_srgb;
 171    GLboolean has_xrgb_textures;
 172
 173    int urb_size;
 174
 175    struct intel_batchbuffer *batch;
 176    drm_intel_bo *first_post_swapbuffers_batch;
 177    GLboolean need_throttle;
 178    GLboolean no_batch_wrap;
 179
 180    struct
 181    {
 182       GLuint id;
 183       uint32_t primitive;       /**< Current hardware primitive type */
 184       void (*flush) (struct intel_context *);
 185       GLubyte *start_ptr; /**< for i8xx */
 186       drm_intel_bo *vb_bo;
 187       uint8_t *vb;
 188       unsigned int start_offset; /**< Byte offset of primitive sequence */
 189       unsigned int current_offset; /**< Byte offset of next vertex */
 190       unsigned int count;       /**< Number of vertices in current primitive */
 191    } prim;
 192
 193    GLuint stats_wm;
 194
 195    /* Offsets of fields within the current vertex:
 196     */
 197    GLuint coloroffset;
 198    GLuint specoffset;
 199    GLuint wpos_offset;
 200    GLuint wpos_size;
 201
 202    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 203    GLuint vertex_attr_count;
 204
 205    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 206
 207    GLboolean hw_stencil;
 208    GLboolean hw_stipple;
 209    GLboolean depth_buffer_is_float;
 210    GLboolean no_rast;
 211    GLboolean always_flush_batch;
 212    GLboolean always_flush_cache;
 213
 214    /* 0 - nonconformant, best performance;
 215     * 1 - fallback to sw for known conformance bugs
 216     * 2 - always fallback to sw
 217     */
 218    GLuint conformance_mode;
 219
 220    /* State for intelvb.c and inteltris.c.
 221     */
 222    GLuint RenderIndex;
 223    GLmatrix ViewportMatrix;
 224    GLenum render_primitive;
 225    GLenum reduced_primitive;
 226    GLuint vertex_size;
 227    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 228
 229    /* Fallback rasterization functions
 230     */
 231    intel_point_func draw_point;
 232    intel_line_func draw_line;
 233    intel_tri_func draw_tri;
 234
 235    /**
 236     * Set if rendering has occured to the drawable's front buffer.
 237     *
 238     * This is used in the DRI2 case to detect that glFlush should also copy
 239     * the contents of the fake front buffer to the real front buffer.
 240     */
 241    GLboolean front_buffer_dirty;
 242
 243    /**
 244     * Track whether front-buffer rendering is currently enabled
 245     *
 246     * A separate flag is used to track this in order to support MRT more
 247     * easily.
 248     */
 249    GLboolean is_front_buffer_rendering;
 250    /**
 251     * Track whether front-buffer is the current read target.
 252     *
 253     * This is closely associated with is_front_buffer_rendering, but may
 254     * be set separately.  The DRI2 fake front buffer must be referenced
 255     * either way.
 256     */
 257    GLboolean is_front_buffer_reading;
 258
 259    GLboolean use_texture_tiling;
 260    GLboolean use_early_z;
 261
 262    int driFd;
 263
 264    __DRIcontext *driContext;
 265    struct intel_screen *intelScreen;
 266    void (*saved_viewport)(struct gl_context * ctx,
 267                           GLint x, GLint y, GLsizei width, GLsizei height);
 268
 269    /**
 270     * Configuration cache
 271     */
 272    driOptionCache optionCache;
 273 };
 274
 275 extern char *__progname;
 276
 277
 278 #define SUBPIXEL_X 0.125
 279 #define SUBPIXEL_Y 0.125
 280
 281 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 282 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 283 #define ROUND_DOWN_TO(value, alignment) (ALIGN(value - alignment - 1, \
 284                                                alignment))
 285 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 286
 287 static INLINE uint32_t
 288 U_FIXED(float value, uint32_t frac_bits)
 289 {
 290    value *= (1 << frac_bits);
 291    return value < 0 ? 0 : value;
 292 }
 293
 294 static INLINE uint32_t
 295 S_FIXED(float value, uint32_t frac_bits)
 296 {
 297    return value * (1 << frac_bits);
 298 }
 299
 300 #define INTEL_FIREVERTICES(intel)               \
 301 do {                                            \
 302    if ((intel)->prim.flush)                     \
 303       (intel)->prim.flush(intel);               \
 304 } while (0)
 305
 306 /* ================================================================
 307  * From linux kernel i386 header files, copes with odd sizes better
 308  * than COPY_DWORDS would:
 309  * XXX Put this in src/mesa/main/imports.h ???
 310  */
 311 #if defined(i386) || defined(__i386__)
 312 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 313 {
 314    int d0, d1, d2;
 315    __asm__ __volatile__(
 316       "rep ; movsl\n\t"
 317       "testb $2,%b4\n\t"
 318       "je 1f\n\t"
 319       "movsw\n"
 320       "1:\ttestb $1,%b4\n\t"
 321       "je 2f\n\t"
 322       "movsb\n"
 323       "2:"
 324       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 325       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 326       : "memory");
 327    return (to);
 328 }
 329 #else
 330 #define __memcpy(a,b,c) memcpy(a,b,c)
 331 #endif
 332
 333
 334 /* ================================================================
 335  * Debugging:
 336  */
 337 extern int INTEL_DEBUG;
 338
 339 #define DEBUG_TEXTURE   0x1
 340 #define DEBUG_STATE     0x2
 341 #define DEBUG_IOCTL     0x4
 342 #define DEBUG_BLIT      0x8
 343 #define DEBUG_MIPTREE   0x10
 344 #define DEBUG_FALLBACKS 0x20
 345 #define DEBUG_VERBOSE   0x40
 346 #define DEBUG_BATCH     0x80
 347 #define DEBUG_PIXEL     0x100
 348 #define DEBUG_BUFMGR    0x200
 349 #define DEBUG_REGION    0x400
 350 #define DEBUG_FBO       0x800
 351 #define DEBUG_GS        0x1000
 352 #define DEBUG_SYNC      0x2000
 353 #define DEBUG_PRIMS     0x4000
 354 #define DEBUG_VERTS     0x8000
 355 #define DEBUG_DRI       0x10000
 356 #define DEBUG_SF        0x20000
 357 #define DEBUG_SANITY    0x40000
 358 #define DEBUG_SLEEP     0x80000
 359 #define DEBUG_STATS     0x100000
 360 #define DEBUG_TILE      0x200000
 361 #define DEBUG_SINGLE_THREAD   0x400000
 362 #define DEBUG_WM        0x800000
 363 #define DEBUG_URB       0x1000000
 364 #define DEBUG_VS        0x2000000
 365 #define DEBUG_CLIP      0x8000000
 366
 367 #define DBG(...) do {                                           \
 368         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 369                 printf(__VA_ARGS__);                    \
 370 } while(0)
 371
 372 #define fallback_debug(...) do {                                \
 373         if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS))            \
 374                 printf(__VA_ARGS__);                            \
 375 } while(0)
 376
 377 #define PCI_CHIP_845_G                  0x2562
 378 #define PCI_CHIP_I830_M                 0x3577
 379 #define PCI_CHIP_I855_GM                0x3582
 380 #define PCI_CHIP_I865_G                 0x2572
 381 #define PCI_CHIP_I915_G                 0x2582
 382 #define PCI_CHIP_I915_GM                0x2592
 383 #define PCI_CHIP_I945_G                 0x2772
 384 #define PCI_CHIP_I945_GM                0x27A2
 385 #define PCI_CHIP_I945_GME               0x27AE
 386 #define PCI_CHIP_G33_G                  0x29C2
 387 #define PCI_CHIP_Q35_G                  0x29B2
 388 #define PCI_CHIP_Q33_G                  0x29D2
 389
 390
 391 /* ================================================================
 392  * intel_context.c:
 393  */
 394
 395 extern GLboolean intelInitContext(struct intel_context *intel,
 396                                   int api,
 397                                   const struct gl_config * mesaVis,
 398                                   __DRIcontext * driContextPriv,
 399                                   void *sharedContextPrivate,
 400                                   struct dd_function_table *functions);
 401
 402 extern void intelFinish(struct gl_context * ctx);
 403 extern void intel_flush(struct gl_context * ctx);
 404
 405 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 406
 407 void intel_init_syncobj_functions(struct dd_function_table *functions);
 408
 409
 410 /* ================================================================
 411  * intel_state.c:
 412  */
 413 extern void intelInitStateFuncs(struct dd_function_table *functions);
 414
 415 #define COMPAREFUNC_ALWAYS              0
 416 #define COMPAREFUNC_NEVER               0x1
 417 #define COMPAREFUNC_LESS                0x2
 418 #define COMPAREFUNC_EQUAL               0x3
 419 #define COMPAREFUNC_LEQUAL              0x4
 420 #define COMPAREFUNC_GREATER             0x5
 421 #define COMPAREFUNC_NOTEQUAL            0x6
 422 #define COMPAREFUNC_GEQUAL              0x7
 423
 424 #define STENCILOP_KEEP                  0
 425 #define STENCILOP_ZERO                  0x1
 426 #define STENCILOP_REPLACE               0x2
 427 #define STENCILOP_INCRSAT               0x3
 428 #define STENCILOP_DECRSAT               0x4
 429 #define STENCILOP_INCR                  0x5
 430 #define STENCILOP_DECR                  0x6
 431 #define STENCILOP_INVERT                0x7
 432
 433 #define LOGICOP_CLEAR                   0
 434 #define LOGICOP_NOR                     0x1
 435 #define LOGICOP_AND_INV                 0x2
 436 #define LOGICOP_COPY_INV                0x3
 437 #define LOGICOP_AND_RVRSE               0x4
 438 #define LOGICOP_INV                     0x5
 439 #define LOGICOP_XOR                     0x6
 440 #define LOGICOP_NAND                    0x7
 441 #define LOGICOP_AND                     0x8
 442 #define LOGICOP_EQUIV                   0x9
 443 #define LOGICOP_NOOP                    0xa
 444 #define LOGICOP_OR_INV                  0xb
 445 #define LOGICOP_COPY                    0xc
 446 #define LOGICOP_OR_RVRSE                0xd
 447 #define LOGICOP_OR                      0xe
 448 #define LOGICOP_SET                     0xf
 449
 450 #define BLENDFACT_ZERO                  0x01
 451 #define BLENDFACT_ONE                   0x02
 452 #define BLENDFACT_SRC_COLR              0x03
 453 #define BLENDFACT_INV_SRC_COLR          0x04
 454 #define BLENDFACT_SRC_ALPHA             0x05
 455 #define BLENDFACT_INV_SRC_ALPHA         0x06
 456 #define BLENDFACT_DST_ALPHA             0x07
 457 #define BLENDFACT_INV_DST_ALPHA         0x08
 458 #define BLENDFACT_DST_COLR              0x09
 459 #define BLENDFACT_INV_DST_COLR          0x0a
 460 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 461 #define BLENDFACT_CONST_COLOR           0x0c
 462 #define BLENDFACT_INV_CONST_COLOR       0x0d
 463 #define BLENDFACT_CONST_ALPHA           0x0e
 464 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 465 #define BLENDFACT_MASK                  0x0f
 466
 467 enum {
 468    DRI_CONF_BO_REUSE_DISABLED,
 469    DRI_CONF_BO_REUSE_ALL
 470 };
 471
 472 extern int intel_translate_shadow_compare_func(GLenum func);
 473 extern int intel_translate_compare_func(GLenum func);
 474 extern int intel_translate_stencil_op(GLenum op);
 475 extern int intel_translate_blend_factor(GLenum factor);
 476 extern int intel_translate_logic_op(GLenum opcode);
 477
 478 void intel_update_renderbuffers(__DRIcontext *context,
 479                                 __DRIdrawable *drawable);
 480 void intel_prepare_render(struct intel_context *intel);
 481
 482 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 483                                   uint32_t buffer_id);
 484
 485 /*======================================================================
 486  * Inline conversion functions.
 487  * These are better-typed than the macros used previously:
 488  */
 489 static INLINE struct intel_context *
 490 intel_context(struct gl_context * ctx)
 491 {
 492    return (struct intel_context *) ctx;
 493 }
 494
 495 static INLINE GLboolean
 496 is_power_of_two(uint32_t value)
 497 {
 498    return (value & (value - 1)) == 0;
 499 }
 500
 501 #endif