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,
140 void (*reduced_primitive_state) (struct intel_context * intel,
143 GLboolean (*check_vertex_size) (struct intel_context * intel,
145 void (*invalidate_state) (struct intel_context *intel,
148 void (*assert_not_dirty) (struct intel_context *intel);
150 void (*debug_batch)(struct intel_context *intel);
151 bool (*render_target_supported)(gl_format format);
153 /** Can HiZ be enabled on a depthbuffer of the given format? */
154 bool (*is_hiz_depth_format)(struct intel_context *intel,
158 GLbitfield Fallback; /**< mask of INTEL_FALLBACK_x bits */
162 unsigned int maxBatchSize;
165 * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
168 GLboolean needs_ff_sync;
171 GLboolean has_luminance_srgb;
172 GLboolean has_xrgb_textures;
173 GLboolean has_separate_stencil;
174 GLboolean must_use_separate_stencil;
179 struct intel_batchbuffer {
180 /** Current batchbuffer being queued up. */
182 /** Last BO submitted to the hardware. Used for glFinish(). */
183 drm_intel_bo *last_bo;
184 /** BO for post-sync nonzero writes for gen6 workaround. */
185 drm_intel_bo *workaround_bo;
186 bool need_workaround_flush;
188 struct cached_batch_item *cached_items;
190 uint16_t emit, total;
191 uint16_t used, reserved_space;
193 #define BATCH_SZ (8192*sizeof(uint32_t))
195 uint32_t state_batch_offset;
199 drm_intel_bo *first_post_swapbuffers_batch;
200 GLboolean need_throttle;
201 GLboolean no_batch_wrap;
202 bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
207 uint32_t start_ptr; /**< for i8xx */
208 uint32_t primitive; /**< Current hardware primitive type */
209 void (*flush) (struct intel_context *);
212 unsigned int start_offset; /**< Byte offset of primitive sequence */
213 unsigned int current_offset; /**< Byte offset of next vertex */
214 unsigned int count; /**< Number of vertices in current primitive */
221 uint32_t buffer_offset;
227 /* Offsets of fields within the current vertex:
234 struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
235 GLuint vertex_attr_count;
237 GLfloat polygon_offset_scale; /* dependent on depth_scale, bpp */
239 GLboolean hw_stencil;
240 GLboolean hw_stipple;
241 GLboolean depth_buffer_is_float;
243 GLboolean always_flush_batch;
244 GLboolean always_flush_cache;
246 /* 0 - nonconformant, best performance;
247 * 1 - fallback to sw for known conformance bugs
248 * 2 - always fallback to sw
250 GLuint conformance_mode;
252 /* State for intelvb.c and inteltris.c.
255 GLmatrix ViewportMatrix;
256 GLenum render_primitive;
257 GLenum reduced_primitive;
259 GLubyte *verts; /* points to tnl->clipspace.vertex_buf */
261 /* Fallback rasterization functions
263 intel_point_func draw_point;
264 intel_line_func draw_line;
265 intel_tri_func draw_tri;
268 * Set if rendering has occured to the drawable's front buffer.
270 * This is used in the DRI2 case to detect that glFlush should also copy
271 * the contents of the fake front buffer to the real front buffer.
273 GLboolean front_buffer_dirty;
276 * Track whether front-buffer rendering is currently enabled
278 * A separate flag is used to track this in order to support MRT more
281 GLboolean is_front_buffer_rendering;
283 * Track whether front-buffer is the current read target.
285 * This is closely associated with is_front_buffer_rendering, but may
286 * be set separately. The DRI2 fake front buffer must be referenced
289 GLboolean is_front_buffer_reading;
291 GLboolean use_texture_tiling;
292 GLboolean use_early_z;
296 __DRIcontext *driContext;
297 struct intel_screen *intelScreen;
298 void (*saved_viewport)(struct gl_context * ctx,
299 GLint x, GLint y, GLsizei width, GLsizei height);
302 * Configuration cache
304 driOptionCache optionCache;
307 extern char *__progname;
310 #define SUBPIXEL_X 0.125
311 #define SUBPIXEL_Y 0.125
313 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
316 * Align a value up to an alignment value
318 * If \c value is not already aligned to the requested alignment value, it
319 * will be rounded up.
321 * \param value Value to be rounded
322 * \param alignment Alignment value to be used. This must be a power of two.
324 * \sa ROUND_DOWN_TO()
326 #define ALIGN(value, alignment) (((value) + alignment - 1) & ~(alignment - 1))
329 * Align a value down to an alignment value
331 * If \c value is not already aligned to the requested alignment value, it
332 * will be rounded down.
334 * \param value Value to be rounded
335 * \param alignment Alignment value to be used. This must be a power of two.
339 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
341 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
343 static INLINE uint32_t
344 U_FIXED(float value, uint32_t frac_bits)
346 value *= (1 << frac_bits);
347 return value < 0 ? 0 : value;
350 static INLINE uint32_t
351 S_FIXED(float value, uint32_t frac_bits)
353 return value * (1 << frac_bits);
356 #define INTEL_FIREVERTICES(intel) \
358 if ((intel)->prim.flush) \
359 (intel)->prim.flush(intel); \
362 /* ================================================================
363 * From linux kernel i386 header files, copes with odd sizes better
364 * than COPY_DWORDS would:
365 * XXX Put this in src/mesa/main/imports.h ???
367 #if defined(i386) || defined(__i386__)
368 static INLINE void * __memcpy(void * to, const void * from, size_t n)
371 __asm__ __volatile__(
376 "1:\ttestb $1,%b4\n\t"
380 : "=&c" (d0), "=&D" (d1), "=&S" (d2)
381 :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
386 #define __memcpy(a,b,c) memcpy(a,b,c)
390 /* ================================================================
393 extern int INTEL_DEBUG;
395 #define DEBUG_TEXTURE 0x1
396 #define DEBUG_STATE 0x2
397 #define DEBUG_IOCTL 0x4
398 #define DEBUG_BLIT 0x8
399 #define DEBUG_MIPTREE 0x10
400 #define DEBUG_FALLBACKS 0x20
401 #define DEBUG_VERBOSE 0x40
402 #define DEBUG_BATCH 0x80
403 #define DEBUG_PIXEL 0x100
404 #define DEBUG_BUFMGR 0x200
405 #define DEBUG_REGION 0x400
406 #define DEBUG_FBO 0x800
407 #define DEBUG_GS 0x1000
408 #define DEBUG_SYNC 0x2000
409 #define DEBUG_PRIMS 0x4000
410 #define DEBUG_VERTS 0x8000
411 #define DEBUG_DRI 0x10000
412 #define DEBUG_SF 0x20000
413 #define DEBUG_SANITY 0x40000
414 #define DEBUG_SLEEP 0x80000
415 #define DEBUG_STATS 0x100000
416 #define DEBUG_TILE 0x200000
417 #define DEBUG_SINGLE_THREAD 0x400000
418 #define DEBUG_WM 0x800000
419 #define DEBUG_URB 0x1000000
420 #define DEBUG_VS 0x2000000
421 #define DEBUG_CLIP 0x8000000
423 #define DBG(...) do { \
424 if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG)) \
425 printf(__VA_ARGS__); \
428 #define fallback_debug(...) do { \
429 if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS)) \
430 printf(__VA_ARGS__); \
433 #define PCI_CHIP_845_G 0x2562
434 #define PCI_CHIP_I830_M 0x3577
435 #define PCI_CHIP_I855_GM 0x3582
436 #define PCI_CHIP_I865_G 0x2572
437 #define PCI_CHIP_I915_G 0x2582
438 #define PCI_CHIP_I915_GM 0x2592
439 #define PCI_CHIP_I945_G 0x2772
440 #define PCI_CHIP_I945_GM 0x27A2
441 #define PCI_CHIP_I945_GME 0x27AE
442 #define PCI_CHIP_G33_G 0x29C2
443 #define PCI_CHIP_Q35_G 0x29B2
444 #define PCI_CHIP_Q33_G 0x29D2
447 /* ================================================================
451 extern GLboolean intelInitContext(struct intel_context *intel,
453 const struct gl_config * mesaVis,
454 __DRIcontext * driContextPriv,
455 void *sharedContextPrivate,
456 struct dd_function_table *functions);
458 extern void intelFinish(struct gl_context * ctx);
459 extern void intel_flush(struct gl_context * ctx);
461 extern void intelInitDriverFunctions(struct dd_function_table *functions);
463 void intel_init_syncobj_functions(struct dd_function_table *functions);
466 /* ================================================================
469 extern void intelInitStateFuncs(struct dd_function_table *functions);
471 #define COMPAREFUNC_ALWAYS 0
472 #define COMPAREFUNC_NEVER 0x1
473 #define COMPAREFUNC_LESS 0x2
474 #define COMPAREFUNC_EQUAL 0x3
475 #define COMPAREFUNC_LEQUAL 0x4
476 #define COMPAREFUNC_GREATER 0x5
477 #define COMPAREFUNC_NOTEQUAL 0x6
478 #define COMPAREFUNC_GEQUAL 0x7
480 #define STENCILOP_KEEP 0
481 #define STENCILOP_ZERO 0x1
482 #define STENCILOP_REPLACE 0x2
483 #define STENCILOP_INCRSAT 0x3
484 #define STENCILOP_DECRSAT 0x4
485 #define STENCILOP_INCR 0x5
486 #define STENCILOP_DECR 0x6
487 #define STENCILOP_INVERT 0x7
489 #define LOGICOP_CLEAR 0
490 #define LOGICOP_NOR 0x1
491 #define LOGICOP_AND_INV 0x2
492 #define LOGICOP_COPY_INV 0x3
493 #define LOGICOP_AND_RVRSE 0x4
494 #define LOGICOP_INV 0x5
495 #define LOGICOP_XOR 0x6
496 #define LOGICOP_NAND 0x7
497 #define LOGICOP_AND 0x8
498 #define LOGICOP_EQUIV 0x9
499 #define LOGICOP_NOOP 0xa
500 #define LOGICOP_OR_INV 0xb
501 #define LOGICOP_COPY 0xc
502 #define LOGICOP_OR_RVRSE 0xd
503 #define LOGICOP_OR 0xe
504 #define LOGICOP_SET 0xf
506 #define BLENDFACT_ZERO 0x01
507 #define BLENDFACT_ONE 0x02
508 #define BLENDFACT_SRC_COLR 0x03
509 #define BLENDFACT_INV_SRC_COLR 0x04
510 #define BLENDFACT_SRC_ALPHA 0x05
511 #define BLENDFACT_INV_SRC_ALPHA 0x06
512 #define BLENDFACT_DST_ALPHA 0x07
513 #define BLENDFACT_INV_DST_ALPHA 0x08
514 #define BLENDFACT_DST_COLR 0x09
515 #define BLENDFACT_INV_DST_COLR 0x0a
516 #define BLENDFACT_SRC_ALPHA_SATURATE 0x0b
517 #define BLENDFACT_CONST_COLOR 0x0c
518 #define BLENDFACT_INV_CONST_COLOR 0x0d
519 #define BLENDFACT_CONST_ALPHA 0x0e
520 #define BLENDFACT_INV_CONST_ALPHA 0x0f
521 #define BLENDFACT_MASK 0x0f
524 DRI_CONF_BO_REUSE_DISABLED,
525 DRI_CONF_BO_REUSE_ALL
528 extern int intel_translate_shadow_compare_func(GLenum func);
529 extern int intel_translate_compare_func(GLenum func);
530 extern int intel_translate_stencil_op(GLenum op);
531 extern int intel_translate_blend_factor(GLenum factor);
532 extern int intel_translate_logic_op(GLenum opcode);
534 void intel_update_renderbuffers(__DRIcontext *context,
535 __DRIdrawable *drawable);
536 void intel_prepare_render(struct intel_context *intel);
538 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
541 /*======================================================================
542 * Inline conversion functions.
543 * These are better-typed than the macros used previously:
545 static INLINE struct intel_context *
546 intel_context(struct gl_context * ctx)
548 return (struct intel_context *) ctx;
551 static INLINE GLboolean
552 is_power_of_two(uint32_t value)
554 return (value & (value - 1)) == 0;