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