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 "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 struct intel_sync_object {
 102    struct gl_sync_object Base;
 103
 104    /** Batch associated with this sync object */
 105    drm_intel_bo *bo;
 106 };
 107
 108 /**
 109  * intel_context is derived from Mesa's context class: GLcontext.
 110  */
 111 struct intel_context
 112 {
 113    GLcontext ctx;  /**< base class, must be first field */
 114
 115    struct
 116    {
 117       void (*destroy) (struct intel_context * intel);
 118       void (*emit_state) (struct intel_context * intel);
 119       void (*finish_batch) (struct intel_context * intel);
 120       void (*new_batch) (struct intel_context * intel);
 121       void (*emit_invarient_state) (struct intel_context * intel);
 122       void (*update_texture_state) (struct intel_context * intel);
 123
 124       void (*render_start) (struct intel_context * intel);
 125       void (*render_prevalidate) (struct intel_context * intel);
 126       void (*set_draw_region) (struct intel_context * intel,
 127                                struct intel_region * draw_regions[],
 128                                struct intel_region * depth_region,
 129                                GLuint num_regions);
 130
 131       void (*reduced_primitive_state) (struct intel_context * intel,
 132                                        GLenum rprim);
 133
 134       GLboolean (*check_vertex_size) (struct intel_context * intel,
 135                                       GLuint expected);
 136       void (*invalidate_state) (struct intel_context *intel,
 137                                 GLuint new_state);
 138
 139       void (*assert_not_dirty) (struct intel_context *intel);
 140
 141       void (*debug_batch)(struct intel_context *intel);
 142    } vtbl;
 143
 144    struct dri_metaops meta;
 145
 146    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 147    GLuint NewGLState;
 148
 149    dri_bufmgr *bufmgr;
 150    unsigned int maxBatchSize;
 151
 152    /**
 153     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 154     */
 155    int gen;
 156    GLboolean needs_ff_sync;
 157    GLboolean is_g4x;
 158    GLboolean is_945;
 159    GLboolean has_luminance_srgb;
 160    GLboolean has_xrgb_textures;
 161
 162    int urb_size;
 163
 164    struct intel_batchbuffer *batch;
 165    drm_intel_bo *first_post_swapbuffers_batch;
 166    GLboolean need_throttle;
 167    GLboolean no_batch_wrap;
 168
 169    struct
 170    {
 171       GLuint id;
 172       uint32_t primitive;       /**< Current hardware primitive type */
 173       void (*flush) (struct intel_context *);
 174       GLubyte *start_ptr; /**< for i8xx */
 175       drm_intel_bo *vb_bo;
 176       uint8_t *vb;
 177       unsigned int start_offset; /**< Byte offset of primitive sequence */
 178       unsigned int current_offset; /**< Byte offset of next vertex */
 179       unsigned int count;       /**< Number of vertices in current primitive */
 180    } prim;
 181
 182    GLuint stats_wm;
 183    GLboolean locked;
 184    char *prevLockFile;
 185    int prevLockLine;
 186
 187    /* Offsets of fields within the current vertex:
 188     */
 189    GLuint coloroffset;
 190    GLuint specoffset;
 191    GLuint wpos_offset;
 192    GLuint wpos_size;
 193
 194    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 195    GLuint vertex_attr_count;
 196
 197    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 198
 199    GLboolean hw_stencil;
 200    GLboolean hw_stipple;
 201    GLboolean depth_buffer_is_float;
 202    GLboolean no_rast;
 203    GLboolean no_hw;
 204    GLboolean always_flush_batch;
 205    GLboolean always_flush_cache;
 206
 207    /* 0 - nonconformant, best performance;
 208     * 1 - fallback to sw for known conformance bugs
 209     * 2 - always fallback to sw
 210     */
 211    GLuint conformance_mode;
 212
 213    /* State for intelvb.c and inteltris.c.
 214     */
 215    GLuint RenderIndex;
 216    GLmatrix ViewportMatrix;
 217    GLenum render_primitive;
 218    GLenum reduced_primitive;
 219    GLuint vertex_size;
 220    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 221
 222    /* Fallback rasterization functions
 223     */
 224    intel_point_func draw_point;
 225    intel_line_func draw_line;
 226    intel_tri_func draw_tri;
 227
 228    /**
 229     * Set if rendering has occured to the drawable's front buffer.
 230     *
 231     * This is used in the DRI2 case to detect that glFlush should also copy
 232     * the contents of the fake front buffer to the real front buffer.
 233     */
 234    GLboolean front_buffer_dirty;
 235
 236    /**
 237     * Track whether front-buffer rendering is currently enabled
 238     *
 239     * A separate flag is used to track this in order to support MRT more
 240     * easily.
 241     */
 242    GLboolean is_front_buffer_rendering;
 243    /**
 244     * Track whether front-buffer is the current read target.
 245     *
 246     * This is closely associated with is_front_buffer_rendering, but may
 247     * be set separately.  The DRI2 fake front buffer must be referenced
 248     * either way.
 249     */
 250    GLboolean is_front_buffer_reading;
 251
 252    GLboolean use_texture_tiling;
 253    GLboolean use_early_z;
 254
 255    int driFd;
 256
 257    __DRIcontext *driContext;
 258    struct intel_screen *intelScreen;
 259    void (*saved_viewport)(GLcontext * ctx,
 260                           GLint x, GLint y, GLsizei width, GLsizei height);
 261
 262    /**
 263     * Configuration cache
 264     */
 265    driOptionCache optionCache;
 266 };
 267
 268 extern char *__progname;
 269
 270
 271 #define SUBPIXEL_X 0.125
 272 #define SUBPIXEL_Y 0.125
 273
 274 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 275 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 276 #define ROUND_DOWN_TO(value, alignment) (ALIGN(value - alignment - 1, \
 277                                                alignment))
 278 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 279
 280 static INLINE uint32_t
 281 U_FIXED(float value, uint32_t frac_bits)
 282 {
 283    value *= (1 << frac_bits);
 284    return value < 0 ? 0 : value;
 285 }
 286
 287 static INLINE uint32_t
 288 S_FIXED(float value, uint32_t frac_bits)
 289 {
 290    return value * (1 << frac_bits);
 291 }
 292
 293 #define INTEL_FIREVERTICES(intel)               \
 294 do {                                            \
 295    if ((intel)->prim.flush)                     \
 296       (intel)->prim.flush(intel);               \
 297 } while (0)
 298
 299 /* ================================================================
 300  * From linux kernel i386 header files, copes with odd sizes better
 301  * than COPY_DWORDS would:
 302  * XXX Put this in src/mesa/main/imports.h ???
 303  */
 304 #if defined(i386) || defined(__i386__)
 305 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 306 {
 307    int d0, d1, d2;
 308    __asm__ __volatile__(
 309       "rep ; movsl\n\t"
 310       "testb $2,%b4\n\t"
 311       "je 1f\n\t"
 312       "movsw\n"
 313       "1:\ttestb $1,%b4\n\t"
 314       "je 2f\n\t"
 315       "movsb\n"
 316       "2:"
 317       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 318       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 319       : "memory");
 320    return (to);
 321 }
 322 #else
 323 #define __memcpy(a,b,c) memcpy(a,b,c)
 324 #endif
 325
 326
 327 /* ================================================================
 328  * Debugging:
 329  */
 330 extern int INTEL_DEBUG;
 331
 332 #define DEBUG_TEXTURE   0x1
 333 #define DEBUG_STATE     0x2
 334 #define DEBUG_IOCTL     0x4
 335 #define DEBUG_BLIT      0x8
 336 #define DEBUG_MIPTREE   0x10
 337 #define DEBUG_FALLBACKS 0x20
 338 #define DEBUG_VERBOSE   0x40
 339 #define DEBUG_BATCH     0x80
 340 #define DEBUG_PIXEL     0x100
 341 #define DEBUG_BUFMGR    0x200
 342 #define DEBUG_REGION    0x400
 343 #define DEBUG_FBO       0x800
 344 #define DEBUG_GS        0x1000
 345 #define DEBUG_SYNC      0x2000
 346 #define DEBUG_PRIMS     0x4000
 347 #define DEBUG_VERTS     0x8000
 348 #define DEBUG_DRI       0x10000
 349 #define DEBUG_SF        0x20000
 350 #define DEBUG_SANITY    0x40000
 351 #define DEBUG_SLEEP     0x80000
 352 #define DEBUG_STATS     0x100000
 353 #define DEBUG_TILE      0x200000
 354 #define DEBUG_SINGLE_THREAD   0x400000
 355 #define DEBUG_WM        0x800000
 356 #define DEBUG_URB       0x1000000
 357 #define DEBUG_VS        0x2000000
 358 #define DEBUG_GLSL_FORCE 0x4000000
 359 #define DEBUG_CLIP      0x8000000
 360
 361 #define DBG(...) do {                                           \
 362         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 363                 printf(__VA_ARGS__);                    \
 364 } while(0)
 365
 366 #define PCI_CHIP_845_G                  0x2562
 367 #define PCI_CHIP_I830_M                 0x3577
 368 #define PCI_CHIP_I855_GM                0x3582
 369 #define PCI_CHIP_I865_G                 0x2572
 370 #define PCI_CHIP_I915_G                 0x2582
 371 #define PCI_CHIP_I915_GM                0x2592
 372 #define PCI_CHIP_I945_G                 0x2772
 373 #define PCI_CHIP_I945_GM                0x27A2
 374 #define PCI_CHIP_I945_GME               0x27AE
 375 #define PCI_CHIP_G33_G                  0x29C2
 376 #define PCI_CHIP_Q35_G                  0x29B2
 377 #define PCI_CHIP_Q33_G                  0x29D2
 378
 379
 380 /* ================================================================
 381  * intel_context.c:
 382  */
 383
 384 extern GLboolean intelInitContext(struct intel_context *intel,
 385                                   int api,
 386                                   const __GLcontextModes * mesaVis,
 387                                   __DRIcontext * driContextPriv,
 388                                   void *sharedContextPrivate,
 389                                   struct dd_function_table *functions);
 390
 391 extern void intelFinish(GLcontext * ctx);
 392 extern void intel_flush(GLcontext * ctx);
 393
 394 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 395
 396 void intel_init_syncobj_functions(struct dd_function_table *functions);
 397
 398
 399 /* ================================================================
 400  * intel_state.c:
 401  */
 402 extern void intelInitStateFuncs(struct dd_function_table *functions);
 403
 404 #define COMPAREFUNC_ALWAYS              0
 405 #define COMPAREFUNC_NEVER               0x1
 406 #define COMPAREFUNC_LESS                0x2
 407 #define COMPAREFUNC_EQUAL               0x3
 408 #define COMPAREFUNC_LEQUAL              0x4
 409 #define COMPAREFUNC_GREATER             0x5
 410 #define COMPAREFUNC_NOTEQUAL            0x6
 411 #define COMPAREFUNC_GEQUAL              0x7
 412
 413 #define STENCILOP_KEEP                  0
 414 #define STENCILOP_ZERO                  0x1
 415 #define STENCILOP_REPLACE               0x2
 416 #define STENCILOP_INCRSAT               0x3
 417 #define STENCILOP_DECRSAT               0x4
 418 #define STENCILOP_INCR                  0x5
 419 #define STENCILOP_DECR                  0x6
 420 #define STENCILOP_INVERT                0x7
 421
 422 #define LOGICOP_CLEAR                   0
 423 #define LOGICOP_NOR                     0x1
 424 #define LOGICOP_AND_INV                 0x2
 425 #define LOGICOP_COPY_INV                0x3
 426 #define LOGICOP_AND_RVRSE               0x4
 427 #define LOGICOP_INV                     0x5
 428 #define LOGICOP_XOR                     0x6
 429 #define LOGICOP_NAND                    0x7
 430 #define LOGICOP_AND                     0x8
 431 #define LOGICOP_EQUIV                   0x9
 432 #define LOGICOP_NOOP                    0xa
 433 #define LOGICOP_OR_INV                  0xb
 434 #define LOGICOP_COPY                    0xc
 435 #define LOGICOP_OR_RVRSE                0xd
 436 #define LOGICOP_OR                      0xe
 437 #define LOGICOP_SET                     0xf
 438
 439 #define BLENDFACT_ZERO                  0x01
 440 #define BLENDFACT_ONE                   0x02
 441 #define BLENDFACT_SRC_COLR              0x03
 442 #define BLENDFACT_INV_SRC_COLR          0x04
 443 #define BLENDFACT_SRC_ALPHA             0x05
 444 #define BLENDFACT_INV_SRC_ALPHA         0x06
 445 #define BLENDFACT_DST_ALPHA             0x07
 446 #define BLENDFACT_INV_DST_ALPHA         0x08
 447 #define BLENDFACT_DST_COLR              0x09
 448 #define BLENDFACT_INV_DST_COLR          0x0a
 449 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 450 #define BLENDFACT_CONST_COLOR           0x0c
 451 #define BLENDFACT_INV_CONST_COLOR       0x0d
 452 #define BLENDFACT_CONST_ALPHA           0x0e
 453 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 454 #define BLENDFACT_MASK                  0x0f
 455
 456 enum {
 457    DRI_CONF_BO_REUSE_DISABLED,
 458    DRI_CONF_BO_REUSE_ALL
 459 };
 460
 461 extern int intel_translate_shadow_compare_func(GLenum func);
 462 extern int intel_translate_compare_func(GLenum func);
 463 extern int intel_translate_stencil_op(GLenum op);
 464 extern int intel_translate_blend_factor(GLenum factor);
 465 extern int intel_translate_logic_op(GLenum opcode);
 466
 467 void intel_update_renderbuffers(__DRIcontext *context,
 468                                 __DRIdrawable *drawable);
 469 void intel_prepare_render(struct intel_context *intel);
 470
 471 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 472                                   uint32_t buffer_id);
 473
 474 /*======================================================================
 475  * Inline conversion functions.
 476  * These are better-typed than the macros used previously:
 477  */
 478 static INLINE struct intel_context *
 479 intel_context(GLcontext * ctx)
 480 {
 481    return (struct intel_context *) ctx;
 482 }
 483
 484 static INLINE GLboolean
 485 is_power_of_two(uint32_t value)
 486 {
 487    return (value & (value - 1)) == 0;
 488 }
 489
 490 #endif