src/mesa/drivers/dri/i965/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 "mtypes.h"
  34 #include "drm.h"
  35 #include "texmem.h"
  36
  37 #include "intel_screen.h"
  38 #include "i830_common.h"
  39 #include "tnl/t_vertex.h"
  40
  41 #define TAG(x) intel##x
  42 #include "tnl_dd/t_dd_vertex.h"
  43 #undef TAG
  44
  45 #define DV_PF_555  (1<<8)
  46 #define DV_PF_565  (2<<8)
  47 #define DV_PF_8888 (3<<8)
  48
  49 struct intel_region;
  50 struct intel_context;
  51
  52 typedef void (*intel_tri_func)(struct intel_context *, intelVertex *, intelVertex *,
  53                                                           intelVertex *);
  54 typedef void (*intel_line_func)(struct intel_context *, intelVertex *, intelVertex *);
  55 typedef void (*intel_point_func)(struct intel_context *, intelVertex *);
  56
  57 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  58 #define INTEL_FALLBACK_READ_BUFFER       0x2
  59 #define INTEL_FALLBACK_USER              0x4
  60 #define INTEL_FALLBACK_RENDERMODE        0x8
  61 #define INTEL_FALLBACK_TEXTURE           0x10
  62
  63 extern void intelFallback( struct intel_context *intel, GLuint bit, GLboolean mode );
  64 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  65
  66
  67
  68 struct intel_texture_object
  69 {
  70    struct gl_texture_object base; /* The "parent" object */
  71
  72    /* The mipmap tree must include at least these levels once
  73     * validated:
  74     */
  75    GLuint firstLevel;
  76    GLuint lastLevel;
  77
  78    GLuint dirty_images[6];
  79    GLuint dirty;
  80
  81    /* On validation any active images held in main memory or in other
  82     * regions will be copied to this region and the old storage freed.
  83     */
  84    struct intel_mipmap_tree *mt;
  85 };
  86
  87
  88
  89 struct intel_context
  90 {
  91    GLcontext ctx;               /* the parent class */
  92
  93    struct {
  94       void (*destroy)( struct intel_context *intel );
  95       void (*emit_state)( struct intel_context *intel );
  96       void (*emit_invarient_state)( struct intel_context *intel );
  97       void (*lost_hardware)( struct intel_context *intel );
  98       void (*note_fence)( struct intel_context *intel, GLuint fence );
  99       void (*note_unlock)( struct intel_context *intel );
 100       void (*update_texture_state)( struct intel_context *intel );
 101
 102       void (*render_start)( struct intel_context *intel );
 103       void (*set_draw_region)( struct intel_context *intel,
 104                                struct intel_region *draw_region,
 105                                struct intel_region *depth_region );
 106
 107       GLuint (*flush_cmd)( void );
 108
 109       void (*emit_flush)( struct intel_context *intel,
 110                           GLuint unused );
 111
 112       void (*reduced_primitive_state)( struct intel_context *intel, GLenum rprim );
 113
 114       GLboolean (*check_vertex_size)( struct intel_context *intel, GLuint expected );
 115
 116       void (*invalidate_state)( struct intel_context *intel, GLuint new_state );
 117
 118       /* Metaops:
 119        */
 120       void (*install_meta_state)( struct intel_context *intel );
 121       void (*leave_meta_state)( struct intel_context *intel );
 122
 123       void (*meta_draw_region)( struct intel_context *intel,
 124                                 struct intel_region *draw_region,
 125                                 struct intel_region *depth_region );
 126
 127       void (*meta_color_mask)( struct intel_context *intel,
 128                                GLboolean );
 129
 130       void (*meta_stencil_replace)( struct intel_context *intel,
 131                                     GLuint mask,
 132                                     GLuint clear );
 133
 134       void (*meta_depth_replace)( struct intel_context *intel );
 135
 136       void (*meta_texture_blend_replace) (struct intel_context * intel);
 137
 138       void (*meta_no_stencil_write)( struct intel_context *intel );
 139       void (*meta_no_depth_write)( struct intel_context *intel );
 140       void (*meta_no_texture)( struct intel_context *intel );
 141       void (*meta_import_pixel_state) (struct intel_context * intel);
 142       void (*meta_frame_buffer_texture)( struct intel_context *intel,
 143                                          GLint xoff, GLint yoff );
 144
 145       void (*meta_draw_quad)(struct intel_context *intel,
 146                              GLfloat x0, GLfloat x1,
 147                              GLfloat y0, GLfloat y1,
 148                              GLfloat z,
 149                              GLubyte red, GLubyte green,
 150                              GLubyte blue, GLubyte alpha,
 151                              GLfloat s0, GLfloat s1,
 152                              GLfloat t0, GLfloat t1);
 153
 154
 155
 156    } vtbl;
 157
 158    GLint refcount;
 159    GLuint Fallback;
 160    GLuint NewGLState;
 161
 162    GLuint last_swap_fence;
 163    GLuint second_last_swap_fence;
 164
 165    GLuint stats_wm;
 166
 167    struct intel_batchbuffer *batch;
 168
 169    GLubyte clear_chan[4];
 170    GLuint ClearColor;
 171    GLuint ClearDepth;
 172
 173    GLfloat depth_scale;
 174    GLfloat polygon_offset_scale; /* dependent on depth_scale, bpp */
 175    GLuint depth_clear_mask;
 176    GLuint stencil_clear_mask;
 177
 178    GLboolean hw_stencil;
 179    GLboolean hw_stipple;
 180    GLboolean depth_buffer_is_float;
 181    GLboolean no_hw;
 182    GLboolean no_rast;
 183    GLboolean thrashing;
 184    GLboolean locked;
 185    GLboolean strict_conformance;
 186    GLboolean need_flush;
 187
 188
 189
 190    /* AGP memory buffer manager:
 191     */
 192    struct bufmgr *bm;
 193
 194
 195    /* State for intelvb.c and inteltris.c.
 196     */
 197    GLenum render_primitive;
 198    GLenum reduced_primitive;
 199
 200    struct intel_region *front_region;
 201    struct intel_region *back_region;
 202    struct intel_region *draw_region;
 203    struct intel_region *depth_region;
 204
 205    /* These refer to the current draw (front vs. back) buffer:
 206     */
 207    int drawX;                   /* origin of drawable in draw buffer */
 208    int drawY;
 209    GLuint numClipRects;         /* cliprects for that buffer */
 210    drm_clip_rect_t *pClipRects;
 211    struct gl_texture_object *frame_buffer_texobj;
 212
 213    GLboolean scissor;
 214    drm_clip_rect_t draw_rect;
 215    drm_clip_rect_t scissor_rect;
 216
 217    drm_context_t hHWContext;
 218    drmLock *driHwLock;
 219    int driFd;
 220
 221    __DRIdrawablePrivate *driDrawable;
 222    __DRIdrawablePrivate *driReadDrawable;
 223    __DRIscreenPrivate *driScreen;
 224    intelScreenPrivate *intelScreen;
 225    volatile drmI830Sarea *sarea;
 226
 227    GLuint lastStamp;
 228
 229    /**
 230     * Configuration cache
 231     */
 232    driOptionCache optionCache;
 233
 234    int64_t swap_ust;
 235    int64_t swap_missed_ust;
 236
 237    GLuint swap_count;
 238    GLuint swap_missed_count;
 239 };
 240
 241 /* These are functions now:
 242  */
 243 void LOCK_HARDWARE( struct intel_context *intel );
 244 void UNLOCK_HARDWARE( struct intel_context *intel );
 245
 246
 247 #define SUBPIXEL_X 0.125
 248 #define SUBPIXEL_Y 0.125
 249
 250 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 251
 252 /* ================================================================
 253  * Color packing:
 254  */
 255
 256 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 257   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 258
 259 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 260   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 261     ((a) ? 0x8000 : 0))
 262
 263 #define INTEL_PACKCOLOR565(r,g,b) \
 264   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 265
 266 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 267   ((a<<24) | (r<<16) | (g<<8) | b)
 268
 269
 270 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 271 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 272  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 273   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 274    0)))
 275
 276
 277
 278 /* ================================================================
 279  * From linux kernel i386 header files, copes with odd sizes better
 280  * than COPY_DWORDS would:
 281  */
 282 #if defined(i386) || defined(__i386__)
 283 static inline void * __memcpy(void * to, const void * from, size_t n)
 284 {
 285    int d0, d1, d2;
 286    __asm__ __volatile__(
 287       "rep ; movsl\n\t"
 288       "testb $2,%b4\n\t"
 289       "je 1f\n\t"
 290       "movsw\n"
 291       "1:\ttestb $1,%b4\n\t"
 292       "je 2f\n\t"
 293       "movsb\n"
 294       "2:"
 295       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 296       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 297       : "memory");
 298    return (to);
 299 }
 300 #else
 301 #define __memcpy(a,b,c) memcpy(a,b,c)
 302 #endif
 303
 304
 305 /* The system memcpy (at least on ubuntu 5.10) has problems copying
 306  * to agp (writecombined) memory from a source which isn't 64-byte
 307  * aligned - there is a 4x performance falloff.
 308  *
 309  * The x86 __memcpy is immune to this but is slightly slower
 310  * (10%-ish) than the system memcpy.
 311  *
 312  * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
 313  * isn't much faster than x86_memcpy for agp copies.
 314  *
 315  * TODO: switch dynamically.
 316  */
 317 static inline void *do_memcpy( void *dest, const void *src, size_t n )
 318 {
 319    if ( (((unsigned long)src) & 63) ||
 320         (((unsigned long)dest) & 63)) {
 321       return  __memcpy(dest, src, n);
 322    }
 323    else
 324       return memcpy(dest, src, n);
 325 }
 326
 327
 328
 329
 330
 331 /* ================================================================
 332  * Debugging:
 333  */
 334 extern int INTEL_DEBUG;
 335
 336 #define DEBUG_TEXTURE   0x1
 337 #define DEBUG_STATE     0x2
 338 #define DEBUG_IOCTL     0x4
 339 #define DEBUG_PRIMS     0x8
 340 #define DEBUG_VERTS     0x10
 341 #define DEBUG_FALLBACKS 0x20
 342 #define DEBUG_VERBOSE   0x40
 343 #define DEBUG_DRI       0x80
 344 #define DEBUG_DMA       0x100
 345 #define DEBUG_SANITY    0x200
 346 #define DEBUG_SYNC      0x400
 347 #define DEBUG_SLEEP     0x800
 348 #define DEBUG_PIXEL     0x1000
 349 #define DEBUG_STATS     0x2000
 350 #define DEBUG_TILE      0x4000
 351 #define DEBUG_SINGLE_THREAD   0x8000
 352 #define DEBUG_WM        0x10000
 353 #define DEBUG_URB       0x20000
 354 #define DEBUG_VS        0x40000
 355 #define DEBUG_BATCH     0x80000
 356
 357 /* ================================================================
 358  * intel_context.c:
 359  */
 360
 361 extern GLboolean intelInitContext( struct intel_context *intel,
 362                                    const __GLcontextModes *mesaVis,
 363                                    __DRIcontextPrivate *driContextPriv,
 364                                    void *sharedContextPrivate,
 365                                    struct dd_function_table *functions );
 366
 367 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 368
 369 extern void intelFinish( GLcontext *ctx );
 370 extern void intelFlush( GLcontext *ctx );
 371
 372 extern void intelInitDriverFunctions( struct dd_function_table *functions );
 373
 374
 375 /* ================================================================
 376  * intel_state.c:
 377  */
 378 extern void intelInitStateFuncs( struct dd_function_table *functions );
 379
 380 #define COMPAREFUNC_ALWAYS              0
 381 #define COMPAREFUNC_NEVER               0x1
 382 #define COMPAREFUNC_LESS                0x2
 383 #define COMPAREFUNC_EQUAL               0x3
 384 #define COMPAREFUNC_LEQUAL              0x4
 385 #define COMPAREFUNC_GREATER             0x5
 386 #define COMPAREFUNC_NOTEQUAL            0x6
 387 #define COMPAREFUNC_GEQUAL              0x7
 388
 389 #define STENCILOP_KEEP                  0
 390 #define STENCILOP_ZERO                  0x1
 391 #define STENCILOP_REPLACE               0x2
 392 #define STENCILOP_INCRSAT               0x3
 393 #define STENCILOP_DECRSAT               0x4
 394 #define STENCILOP_INCR                  0x5
 395 #define STENCILOP_DECR                  0x6
 396 #define STENCILOP_INVERT                0x7
 397
 398 #define LOGICOP_CLEAR                   0
 399 #define LOGICOP_NOR                     0x1
 400 #define LOGICOP_AND_INV                 0x2
 401 #define LOGICOP_COPY_INV                0x3
 402 #define LOGICOP_AND_RVRSE               0x4
 403 #define LOGICOP_INV                     0x5
 404 #define LOGICOP_XOR                     0x6
 405 #define LOGICOP_NAND                    0x7
 406 #define LOGICOP_AND                     0x8
 407 #define LOGICOP_EQUIV                   0x9
 408 #define LOGICOP_NOOP                    0xa
 409 #define LOGICOP_OR_INV                  0xb
 410 #define LOGICOP_COPY                    0xc
 411 #define LOGICOP_OR_RVRSE                0xd
 412 #define LOGICOP_OR                      0xe
 413 #define LOGICOP_SET                     0xf
 414
 415 #define BLENDFACT_ZERO                  0x01
 416 #define BLENDFACT_ONE                   0x02
 417 #define BLENDFACT_SRC_COLR              0x03
 418 #define BLENDFACT_INV_SRC_COLR          0x04
 419 #define BLENDFACT_SRC_ALPHA             0x05
 420 #define BLENDFACT_INV_SRC_ALPHA         0x06
 421 #define BLENDFACT_DST_ALPHA             0x07
 422 #define BLENDFACT_INV_DST_ALPHA         0x08
 423 #define BLENDFACT_DST_COLR              0x09
 424 #define BLENDFACT_INV_DST_COLR          0x0a
 425 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 426 #define BLENDFACT_CONST_COLOR           0x0c
 427 #define BLENDFACT_INV_CONST_COLOR       0x0d
 428 #define BLENDFACT_CONST_ALPHA           0x0e
 429 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 430 #define BLENDFACT_MASK                  0x0f
 431
 432 extern int intel_translate_shadow_compare_func( GLenum func );
 433 extern int intel_translate_compare_func( GLenum func );
 434 extern int intel_translate_stencil_op( GLenum op );
 435 extern int intel_translate_blend_factor( GLenum factor );
 436 extern int intel_translate_logic_op( GLenum opcode );
 437
 438
 439 /* ================================================================
 440  * intel_buffers.c:
 441  */
 442 void intelInitBufferFuncs( struct dd_function_table *functions );
 443
 444 struct intel_region *intel_readbuf_region( struct intel_context *intel );
 445 struct intel_region *intel_drawbuf_region( struct intel_context *intel );
 446
 447 extern void intelWindowMoved( struct intel_context *intel );
 448
 449 extern GLboolean intel_intersect_cliprects( drm_clip_rect_t *dest,
 450                                             const drm_clip_rect_t *a,
 451                                             const drm_clip_rect_t *b );
 452
 453
 454 /* ================================================================
 455  * intel_pixel_copy.c:
 456  */
 457 void intelCopyPixels(GLcontext * ctx,
 458                      GLint srcx, GLint srcy,
 459                      GLsizei width, GLsizei height,
 460                      GLint destx, GLint desty, GLenum type);
 461
 462 GLboolean intel_check_blit_fragment_ops(GLcontext * ctx);
 463
 464 void intelBitmap(GLcontext * ctx,
 465                  GLint x, GLint y,
 466                  GLsizei width, GLsizei height,
 467                  const struct gl_pixelstore_attrib *unpack,
 468                  const GLubyte * pixels);
 469
 470 void intelInitExtensions(GLcontext *ctx, GLboolean enable_imaging);
 471 #define _NEW_WINDOW_POS 0x40000000
 472
 473
 474 /*======================================================================
 475  * Inline conversion functions.
 476  * These are better-typed than the macros used previously:
 477  */
 478 static inline struct intel_context *intel_context( GLcontext *ctx )
 479 {
 480    return (struct intel_context *)ctx;
 481 }
 482
 483 static inline struct intel_texture_object *intel_texture_object( struct gl_texture_object *obj )
 484 {
 485    return (struct intel_texture_object *)obj;
 486 }
 487
 488 static inline struct intel_texture_image *intel_texture_image( struct gl_texture_image *img )
 489 {
 490    return (struct intel_texture_image *)img;
 491 }
 492
 493 #endif
 494