1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #ifndef INTELCONTEXT_INC
29 #define INTELCONTEXT_INC
33 #include "main/mtypes.h"
38 /* Evil hack for using libdrm in a c++ compiler. */
43 #include "intel_bufmgr.h"
45 #include "intel_screen.h"
46 #include "intel_tex_obj.h"
54 #include "tnl/t_vertex.h"
56 #define TAG(x) intel##x
57 #include "tnl_dd/t_dd_vertex.h"
60 #define DV_PF_555 (1<<8)
61 #define DV_PF_565 (2<<8)
62 #define DV_PF_8888 (3<<8)
63 #define DV_PF_4444 (8<<8)
64 #define DV_PF_1555 (9<<8)
69 typedef void (*intel_tri_func
) (struct intel_context
*, intelVertex
*,
70 intelVertex
*, intelVertex
*);
71 typedef void (*intel_line_func
) (struct intel_context
*, intelVertex
*,
73 typedef void (*intel_point_func
) (struct intel_context
*, intelVertex
*);
76 * Bits for intel->Fallback field
79 #define INTEL_FALLBACK_DRAW_BUFFER 0x1
80 #define INTEL_FALLBACK_READ_BUFFER 0x2
81 #define INTEL_FALLBACK_DEPTH_BUFFER 0x4
82 #define INTEL_FALLBACK_STENCIL_BUFFER 0x8
83 #define INTEL_FALLBACK_USER 0x10
84 #define INTEL_FALLBACK_RENDERMODE 0x20
85 #define INTEL_FALLBACK_TEXTURE 0x40
86 #define INTEL_FALLBACK_DRIVER 0x1000 /**< first for drivers */
89 extern void intelFallback(struct intel_context
*intel
, GLbitfield bit
,
91 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
94 #define INTEL_WRITE_PART 0x1
95 #define INTEL_WRITE_FULL 0x2
96 #define INTEL_READ 0x4
98 #define INTEL_MAX_FIXUP 64
102 #define likely(expr) (__builtin_expect(expr, 1))
103 #define unlikely(expr) (__builtin_expect(expr, 0))
105 #define likely(expr) (expr)
106 #define unlikely(expr) (expr)
110 struct intel_sync_object
{
111 struct gl_sync_object Base
;
113 /** Batch associated with this sync object */
118 * intel_context is derived from Mesa's context class: struct gl_context.
122 struct gl_context ctx
; /**< base class, must be first field */
126 void (*destroy
) (struct intel_context
* intel
);
127 void (*emit_state
) (struct intel_context
* intel
);
128 void (*finish_batch
) (struct intel_context
* intel
);
129 void (*new_batch
) (struct intel_context
* intel
);
130 void (*emit_invarient_state
) (struct intel_context
* intel
);
131 void (*update_texture_state
) (struct intel_context
* intel
);
133 void (*render_start
) (struct intel_context
* intel
);
134 void (*render_prevalidate
) (struct intel_context
* intel
);
135 void (*set_draw_region
) (struct intel_context
* intel
,
136 struct intel_region
* draw_regions
[],
137 struct intel_region
* depth_region
,
139 void (*update_draw_buffer
)(struct intel_context
*intel
);
141 void (*reduced_primitive_state
) (struct intel_context
* intel
,
144 GLboolean (*check_vertex_size
) (struct intel_context
* intel
,
146 void (*invalidate_state
) (struct intel_context
*intel
,
149 void (*assert_not_dirty
) (struct intel_context
*intel
);
151 void (*debug_batch
)(struct intel_context
*intel
);
152 bool (*render_target_supported
)(gl_format format
);
154 /** Can HiZ be enabled on a depthbuffer of the given format? */
155 bool (*is_hiz_depth_format
)(struct intel_context
*intel
,
159 GLbitfield Fallback
; /**< mask of INTEL_FALLBACK_x bits */
163 unsigned int maxBatchSize
;
166 * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
169 GLboolean needs_ff_sync
;
172 GLboolean has_separate_stencil
;
173 GLboolean must_use_separate_stencil
;
178 struct intel_batchbuffer
{
179 /** Current batchbuffer being queued up. */
181 /** Last BO submitted to the hardware. Used for glFinish(). */
182 drm_intel_bo
*last_bo
;
183 /** BO for post-sync nonzero writes for gen6 workaround. */
184 drm_intel_bo
*workaround_bo
;
185 bool need_workaround_flush
;
187 struct cached_batch_item
*cached_items
;
189 uint16_t emit
, total
;
190 uint16_t used
, reserved_space
;
192 #define BATCH_SZ (8192*sizeof(uint32_t))
194 uint32_t state_batch_offset
;
198 drm_intel_bo
*first_post_swapbuffers_batch
;
199 GLboolean need_throttle
;
200 GLboolean no_batch_wrap
;
201 bool tnl_pipeline_running
; /**< Set while i915's _tnl_run_pipeline. */
206 uint32_t start_ptr
; /**< for i8xx */
207 uint32_t primitive
; /**< Current hardware primitive type */
208 void (*flush
) (struct intel_context
*);
211 unsigned int start_offset
; /**< Byte offset of primitive sequence */
212 unsigned int current_offset
; /**< Byte offset of next vertex */
213 unsigned int count
; /**< Number of vertices in current primitive */
220 uint32_t buffer_offset
;
226 /* Offsets of fields within the current vertex:
232 struct tnl_attr_map vertex_attrs
[VERT_ATTRIB_MAX
];
233 GLuint vertex_attr_count
;
235 GLfloat polygon_offset_scale
; /* dependent on depth_scale, bpp */
237 GLboolean hw_stencil
;
238 GLboolean hw_stipple
;
239 GLboolean depth_buffer_is_float
;
241 GLboolean always_flush_batch
;
242 GLboolean always_flush_cache
;
244 /* 0 - nonconformant, best performance;
245 * 1 - fallback to sw for known conformance bugs
246 * 2 - always fallback to sw
248 GLuint conformance_mode
;
250 /* State for intelvb.c and inteltris.c.
253 GLmatrix ViewportMatrix
;
254 GLenum render_primitive
;
255 GLenum reduced_primitive
;
257 GLubyte
*verts
; /* points to tnl->clipspace.vertex_buf */
259 /* Fallback rasterization functions
261 intel_point_func draw_point
;
262 intel_line_func draw_line
;
263 intel_tri_func draw_tri
;
266 * Set if rendering has occured to the drawable's front buffer.
268 * This is used in the DRI2 case to detect that glFlush should also copy
269 * the contents of the fake front buffer to the real front buffer.
271 GLboolean front_buffer_dirty
;
274 * Track whether front-buffer rendering is currently enabled
276 * A separate flag is used to track this in order to support MRT more
279 GLboolean is_front_buffer_rendering
;
281 * Track whether front-buffer is the current read target.
283 * This is closely associated with is_front_buffer_rendering, but may
284 * be set separately. The DRI2 fake front buffer must be referenced
287 GLboolean is_front_buffer_reading
;
289 GLboolean use_texture_tiling
;
290 GLboolean use_early_z
;
294 __DRIcontext
*driContext
;
295 struct intel_screen
*intelScreen
;
296 void (*saved_viewport
)(struct gl_context
* ctx
,
297 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
300 * Configuration cache
302 driOptionCache optionCache
;
305 extern char *__progname
;
308 #define SUBPIXEL_X 0.125
309 #define SUBPIXEL_Y 0.125
311 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
314 * Align a value up to an alignment value
316 * If \c value is not already aligned to the requested alignment value, it
317 * will be rounded up.
319 * \param value Value to be rounded
320 * \param alignment Alignment value to be used. This must be a power of two.
322 * \sa ROUND_DOWN_TO()
324 #define ALIGN(value, alignment) (((value) + alignment - 1) & ~(alignment - 1))
327 * Align a value down to an alignment value
329 * If \c value is not already aligned to the requested alignment value, it
330 * will be rounded down.
332 * \param value Value to be rounded
333 * \param alignment Alignment value to be used. This must be a power of two.
337 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
339 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
341 static INLINE
uint32_t
342 U_FIXED(float value
, uint32_t frac_bits
)
344 value
*= (1 << frac_bits
);
345 return value
< 0 ? 0 : value
;
348 static INLINE
uint32_t
349 S_FIXED(float value
, uint32_t frac_bits
)
351 return value
* (1 << frac_bits
);
354 #define INTEL_FIREVERTICES(intel) \
356 if ((intel)->prim.flush) \
357 (intel)->prim.flush(intel); \
360 /* ================================================================
361 * From linux kernel i386 header files, copes with odd sizes better
362 * than COPY_DWORDS would:
363 * XXX Put this in src/mesa/main/imports.h ???
365 #if defined(i386) || defined(__i386__)
366 static INLINE
void * __memcpy(void * to
, const void * from
, size_t n
)
369 __asm__
__volatile__(
374 "1:\ttestb $1,%b4\n\t"
378 : "=&c" (d0
), "=&D" (d1
), "=&S" (d2
)
379 :"0" (n
/4), "q" (n
),"1" ((long) to
),"2" ((long) from
)
384 #define __memcpy(a,b,c) memcpy(a,b,c)
388 /* ================================================================
391 extern int INTEL_DEBUG
;
393 #define DEBUG_TEXTURE 0x1
394 #define DEBUG_STATE 0x2
395 #define DEBUG_IOCTL 0x4
396 #define DEBUG_BLIT 0x8
397 #define DEBUG_MIPTREE 0x10
398 #define DEBUG_FALLBACKS 0x20
399 #define DEBUG_VERBOSE 0x40
400 #define DEBUG_BATCH 0x80
401 #define DEBUG_PIXEL 0x100
402 #define DEBUG_BUFMGR 0x200
403 #define DEBUG_REGION 0x400
404 #define DEBUG_FBO 0x800
405 #define DEBUG_GS 0x1000
406 #define DEBUG_SYNC 0x2000
407 #define DEBUG_PRIMS 0x4000
408 #define DEBUG_VERTS 0x8000
409 #define DEBUG_DRI 0x10000
410 #define DEBUG_SF 0x20000
411 #define DEBUG_SANITY 0x40000
412 #define DEBUG_SLEEP 0x80000
413 #define DEBUG_STATS 0x100000
414 #define DEBUG_TILE 0x200000
415 #define DEBUG_SINGLE_THREAD 0x400000
416 #define DEBUG_WM 0x800000
417 #define DEBUG_URB 0x1000000
418 #define DEBUG_VS 0x2000000
419 #define DEBUG_CLIP 0x8000000
421 #define DBG(...) do { \
422 if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG)) \
423 printf(__VA_ARGS__); \
426 #define fallback_debug(...) do { \
427 if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS)) \
428 printf(__VA_ARGS__); \
431 #define PCI_CHIP_845_G 0x2562
432 #define PCI_CHIP_I830_M 0x3577
433 #define PCI_CHIP_I855_GM 0x3582
434 #define PCI_CHIP_I865_G 0x2572
435 #define PCI_CHIP_I915_G 0x2582
436 #define PCI_CHIP_I915_GM 0x2592
437 #define PCI_CHIP_I945_G 0x2772
438 #define PCI_CHIP_I945_GM 0x27A2
439 #define PCI_CHIP_I945_GME 0x27AE
440 #define PCI_CHIP_G33_G 0x29C2
441 #define PCI_CHIP_Q35_G 0x29B2
442 #define PCI_CHIP_Q33_G 0x29D2
445 /* ================================================================
449 extern GLboolean
intelInitContext(struct intel_context
*intel
,
451 const struct gl_config
* mesaVis
,
452 __DRIcontext
* driContextPriv
,
453 void *sharedContextPrivate
,
454 struct dd_function_table
*functions
);
456 extern void intelFinish(struct gl_context
* ctx
);
457 extern void intel_flush(struct gl_context
* ctx
);
459 extern void intelInitDriverFunctions(struct dd_function_table
*functions
);
461 void intel_init_syncobj_functions(struct dd_function_table
*functions
);
464 /* ================================================================
467 extern void intelInitStateFuncs(struct dd_function_table
*functions
);
469 #define COMPAREFUNC_ALWAYS 0
470 #define COMPAREFUNC_NEVER 0x1
471 #define COMPAREFUNC_LESS 0x2
472 #define COMPAREFUNC_EQUAL 0x3
473 #define COMPAREFUNC_LEQUAL 0x4
474 #define COMPAREFUNC_GREATER 0x5
475 #define COMPAREFUNC_NOTEQUAL 0x6
476 #define COMPAREFUNC_GEQUAL 0x7
478 #define STENCILOP_KEEP 0
479 #define STENCILOP_ZERO 0x1
480 #define STENCILOP_REPLACE 0x2
481 #define STENCILOP_INCRSAT 0x3
482 #define STENCILOP_DECRSAT 0x4
483 #define STENCILOP_INCR 0x5
484 #define STENCILOP_DECR 0x6
485 #define STENCILOP_INVERT 0x7
487 #define LOGICOP_CLEAR 0
488 #define LOGICOP_NOR 0x1
489 #define LOGICOP_AND_INV 0x2
490 #define LOGICOP_COPY_INV 0x3
491 #define LOGICOP_AND_RVRSE 0x4
492 #define LOGICOP_INV 0x5
493 #define LOGICOP_XOR 0x6
494 #define LOGICOP_NAND 0x7
495 #define LOGICOP_AND 0x8
496 #define LOGICOP_EQUIV 0x9
497 #define LOGICOP_NOOP 0xa
498 #define LOGICOP_OR_INV 0xb
499 #define LOGICOP_COPY 0xc
500 #define LOGICOP_OR_RVRSE 0xd
501 #define LOGICOP_OR 0xe
502 #define LOGICOP_SET 0xf
504 #define BLENDFACT_ZERO 0x01
505 #define BLENDFACT_ONE 0x02
506 #define BLENDFACT_SRC_COLR 0x03
507 #define BLENDFACT_INV_SRC_COLR 0x04
508 #define BLENDFACT_SRC_ALPHA 0x05
509 #define BLENDFACT_INV_SRC_ALPHA 0x06
510 #define BLENDFACT_DST_ALPHA 0x07
511 #define BLENDFACT_INV_DST_ALPHA 0x08
512 #define BLENDFACT_DST_COLR 0x09
513 #define BLENDFACT_INV_DST_COLR 0x0a
514 #define BLENDFACT_SRC_ALPHA_SATURATE 0x0b
515 #define BLENDFACT_CONST_COLOR 0x0c
516 #define BLENDFACT_INV_CONST_COLOR 0x0d
517 #define BLENDFACT_CONST_ALPHA 0x0e
518 #define BLENDFACT_INV_CONST_ALPHA 0x0f
519 #define BLENDFACT_MASK 0x0f
522 DRI_CONF_BO_REUSE_DISABLED
,
523 DRI_CONF_BO_REUSE_ALL
526 extern int intel_translate_shadow_compare_func(GLenum func
);
527 extern int intel_translate_compare_func(GLenum func
);
528 extern int intel_translate_stencil_op(GLenum op
);
529 extern int intel_translate_blend_factor(GLenum factor
);
530 extern int intel_translate_logic_op(GLenum opcode
);
532 void intel_update_renderbuffers(__DRIcontext
*context
,
533 __DRIdrawable
*drawable
);
534 void intel_prepare_render(struct intel_context
*intel
);
536 void i915_set_buf_info_for_region(uint32_t *state
, struct intel_region
*region
,
539 /*======================================================================
540 * Inline conversion functions.
541 * These are better-typed than the macros used previously:
543 static INLINE
struct intel_context
*
544 intel_context(struct gl_context
* ctx
)
546 return (struct intel_context
*) ctx
;
549 static INLINE GLboolean
550 is_power_of_two(uint32_t value
)
552 return (value
& (value
- 1)) == 0;