intel_context.h revision 39c5fd7f134cc52e7e93553c5c8238b9b531754a 
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#include <stdbool.h>
33#include <string.h>
34#include "main/mtypes.h"
35#include "main/mm.h"
36
37#ifdef __cplusplus
38extern "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#endif
53
54#include "tnl/t_vertex.h"
55
56#define TAG(x) intel##x
57#include "tnl_dd/t_dd_vertex.h"
58#undef TAG
59
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)
65
66struct intel_region;
67struct intel_context;
68
69typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
70                                intelVertex *, intelVertex *);
71typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
72                                 intelVertex *);
73typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
74
75/**
76 * Bits for intel->Fallback field
77 */
78/*@{*/
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 */
87/*@}*/
88
89extern void intelFallback(struct intel_context *intel, GLbitfield bit,
90                          bool mode);
91#define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
92
93
94#define INTEL_WRITE_PART  0x1
95#define INTEL_WRITE_FULL  0x2
96#define INTEL_READ        0x4
97
98#define INTEL_MAX_FIXUP 64
99
100#ifndef likely
101#ifdef __GNUC__
102#define likely(expr) (__builtin_expect(expr, 1))
103#define unlikely(expr) (__builtin_expect(expr, 0))
104#else
105#define likely(expr) (expr)
106#define unlikely(expr) (expr)
107#endif
108#endif
109
110struct intel_sync_object {
111   struct gl_sync_object Base;
112
113   /** Batch associated with this sync object */
114   drm_intel_bo *bo;
115};
116
117struct brw_context;
118
119struct intel_batchbuffer {
120   /** Current batchbuffer being queued up. */
121   drm_intel_bo *bo;
122   /** Last BO submitted to the hardware.  Used for glFinish(). */
123   drm_intel_bo *last_bo;
124
125   uint16_t emit, total;
126   uint16_t used, reserved_space;
127   uint32_t *map;
128   uint32_t *cpu_map;
129#define BATCH_SZ (8192*sizeof(uint32_t))
130};
131
132/**
133 * intel_context is derived from Mesa's context class: struct gl_context.
134 */
135struct intel_context
136{
137   struct gl_context ctx;  /**< base class, must be first field */
138
139   struct
140   {
141      void (*destroy) (struct intel_context * intel);
142      void (*emit_state) (struct intel_context * intel);
143      void (*finish_batch) (struct intel_context * intel);
144      void (*new_batch) (struct intel_context * intel);
145      void (*emit_invarient_state) (struct intel_context * intel);
146      void (*update_texture_state) (struct intel_context * intel);
147
148      void (*render_start) (struct intel_context * intel);
149      void (*render_prevalidate) (struct intel_context * intel);
150      void (*set_draw_region) (struct intel_context * intel,
151                               struct intel_region * draw_regions[],
152                               struct intel_region * depth_region,
153			       GLuint num_regions);
154      void (*update_draw_buffer)(struct intel_context *intel);
155
156      void (*reduced_primitive_state) (struct intel_context * intel,
157                                       GLenum rprim);
158
159      bool (*check_vertex_size) (struct intel_context * intel,
160				      GLuint expected);
161      void (*invalidate_state) (struct intel_context *intel,
162				GLuint new_state);
163
164      void (*assert_not_dirty) (struct intel_context *intel);
165
166      void (*debug_batch)(struct intel_context *intel);
167      void (*annotate_aub)(struct intel_context *intel);
168      bool (*render_target_supported)(struct intel_context *intel,
169				      struct gl_renderbuffer *rb);
170   } vtbl;
171
172   GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
173   GLuint NewGLState;
174
175   dri_bufmgr *bufmgr;
176   unsigned int maxBatchSize;
177
178   /**
179    * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
180    */
181   int gen;
182   bool is_945;
183   bool has_swizzling;
184
185   struct intel_batchbuffer batch;
186
187   drm_intel_bo *first_post_swapbuffers_batch;
188   bool need_throttle;
189   bool no_batch_wrap;
190   bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
191
192   /**
193    * Set if we're either a debug context or the INTEL_DEBUG=perf environment
194    * variable is set, this is the flag indicating to do expensive work that
195    * might lead to a perf_debug() call.
196    */
197   bool perf_debug;
198
199   struct
200   {
201      GLuint id;
202      uint32_t start_ptr; /**< for i8xx */
203      uint32_t primitive;	/**< Current hardware primitive type */
204      void (*flush) (struct intel_context *);
205      drm_intel_bo *vb_bo;
206      uint8_t *vb;
207      unsigned int start_offset; /**< Byte offset of primitive sequence */
208      unsigned int current_offset; /**< Byte offset of next vertex */
209      unsigned int count;	/**< Number of vertices in current primitive */
210   } prim;
211
212   struct {
213      drm_intel_bo *bo;
214      GLuint offset;
215      uint32_t buffer_len;
216      uint32_t buffer_offset;
217      char buffer[4096];
218   } upload;
219
220   uint32_t max_gtt_map_object_size;
221
222   GLuint stats_wm;
223
224   /* Offsets of fields within the current vertex:
225    */
226   GLuint coloroffset;
227   GLuint specoffset;
228   GLuint wpos_offset;
229
230   struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
231   GLuint vertex_attr_count;
232
233   GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
234
235   bool hw_stencil;
236   bool hw_stipple;
237   bool no_rast;
238   bool always_flush_batch;
239   bool always_flush_cache;
240   bool disable_throttling;
241
242   /* State for intelvb.c and inteltris.c.
243    */
244   GLuint RenderIndex;
245   GLmatrix ViewportMatrix;
246   GLenum render_primitive;
247   GLenum reduced_primitive; /*< Only gen < 6 */
248   GLuint vertex_size;
249   GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
250
251   /* Fallback rasterization functions
252    */
253   intel_point_func draw_point;
254   intel_line_func draw_line;
255   intel_tri_func draw_tri;
256
257   /**
258    * Set if rendering has occured to the drawable's front buffer.
259    *
260    * This is used in the DRI2 case to detect that glFlush should also copy
261    * the contents of the fake front buffer to the real front buffer.
262    */
263   bool front_buffer_dirty;
264
265   /**
266    * Track whether front-buffer rendering is currently enabled
267    *
268    * A separate flag is used to track this in order to support MRT more
269    * easily.
270    */
271   bool is_front_buffer_rendering;
272   /**
273    * Track whether front-buffer is the current read target.
274    *
275    * This is closely associated with is_front_buffer_rendering, but may
276    * be set separately.  The DRI2 fake front buffer must be referenced
277    * either way.
278    */
279   bool is_front_buffer_reading;
280
281   bool use_early_z;
282
283   int driFd;
284
285   __DRIcontext *driContext;
286   struct intel_screen *intelScreen;
287   void (*saved_viewport)(struct gl_context * ctx,
288			  GLint x, GLint y, GLsizei width, GLsizei height);
289
290   /**
291    * Configuration cache
292    */
293   driOptionCache optionCache;
294};
295
296extern char *__progname;
297
298
299#define SUBPIXEL_X 0.125
300#define SUBPIXEL_Y 0.125
301
302/**
303 * Align a value down to an alignment value
304 *
305 * If \c value is not already aligned to the requested alignment value, it
306 * will be rounded down.
307 *
308 * \param value  Value to be rounded
309 * \param alignment  Alignment value to be used.  This must be a power of two.
310 *
311 * \sa ALIGN()
312 */
313#define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
314
315static INLINE uint32_t
316U_FIXED(float value, uint32_t frac_bits)
317{
318   value *= (1 << frac_bits);
319   return value < 0 ? 0 : value;
320}
321
322static INLINE uint32_t
323S_FIXED(float value, uint32_t frac_bits)
324{
325   return value * (1 << frac_bits);
326}
327
328#define INTEL_FIREVERTICES(intel)		\
329do {						\
330   if ((intel)->prim.flush)			\
331      (intel)->prim.flush(intel);		\
332} while (0)
333
334/* ================================================================
335 * From linux kernel i386 header files, copes with odd sizes better
336 * than COPY_DWORDS would:
337 * XXX Put this in src/mesa/main/imports.h ???
338 */
339#if defined(i386) || defined(__i386__)
340static INLINE void * __memcpy(void * to, const void * from, size_t n)
341{
342   int d0, d1, d2;
343   __asm__ __volatile__(
344      "rep ; movsl\n\t"
345      "testb $2,%b4\n\t"
346      "je 1f\n\t"
347      "movsw\n"
348      "1:\ttestb $1,%b4\n\t"
349      "je 2f\n\t"
350      "movsb\n"
351      "2:"
352      : "=&c" (d0), "=&D" (d1), "=&S" (d2)
353      :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
354      : "memory");
355   return (to);
356}
357#else
358#define __memcpy(a,b,c) memcpy(a,b,c)
359#endif
360
361
362/* ================================================================
363 * Debugging:
364 */
365extern int INTEL_DEBUG;
366
367#define DEBUG_TEXTURE	0x1
368#define DEBUG_STATE	0x2
369#define DEBUG_IOCTL	0x4
370#define DEBUG_BLIT	0x8
371#define DEBUG_MIPTREE   0x10
372#define DEBUG_PERF	0x20
373#define DEBUG_BATCH     0x80
374#define DEBUG_PIXEL     0x100
375#define DEBUG_BUFMGR    0x200
376#define DEBUG_REGION    0x400
377#define DEBUG_FBO       0x800
378#define DEBUG_GS        0x1000
379#define DEBUG_SYNC	0x2000
380#define DEBUG_PRIMS	0x4000
381#define DEBUG_VERTS	0x8000
382#define DEBUG_DRI       0x10000
383#define DEBUG_SF        0x20000
384#define DEBUG_STATS     0x100000
385#define DEBUG_WM        0x400000
386#define DEBUG_URB       0x800000
387#define DEBUG_VS        0x1000000
388#define DEBUG_CLIP      0x2000000
389#define DEBUG_AUB       0x4000000
390#define DEBUG_BLORP     0x10000000
391#define DEBUG_NO16      0x20000000
392
393#ifdef HAVE_ANDROID_PLATFORM
394#define LOG_TAG "INTEL-MESA"
395#include <cutils/log.h>
396#ifndef ALOGW
397#define ALOGW LOGW
398#endif
399#define dbg_printf(...)	ALOGW(__VA_ARGS__)
400#else
401#define dbg_printf(...)	printf(__VA_ARGS__)
402#endif /* HAVE_ANDROID_PLATFORM */
403
404#define DBG(...) do {						\
405	if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))		\
406		dbg_printf(__VA_ARGS__);			\
407} while(0)
408
409#define perf_debug(...) do {					\
410   static GLuint msg_id = 0;                                    \
411   if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
412      dbg_printf(__VA_ARGS__);                                  \
413   if (intel->perf_debug)                                       \
414      _mesa_gl_debug(&intel->ctx, &msg_id,                      \
415                     MESA_DEBUG_TYPE_PERFORMANCE,               \
416                     MESA_DEBUG_SEVERITY_MEDIUM,                \
417                     __VA_ARGS__);                              \
418} while(0)
419
420#define WARN_ONCE(cond, fmt...) do {                            \
421   if (unlikely(cond)) {                                        \
422      static bool _warned = false;                              \
423      static GLuint msg_id = 0;                                 \
424      if (!_warned) {                                           \
425         fprintf(stderr, "WARNING: ");                          \
426         fprintf(stderr, fmt);                                  \
427         _warned = true;                                        \
428                                                                \
429         _mesa_gl_debug(ctx, &msg_id,                           \
430                        MESA_DEBUG_TYPE_OTHER,                  \
431                        MESA_DEBUG_SEVERITY_HIGH, fmt);         \
432      }                                                         \
433   }                                                            \
434} while (0)
435
436#define PCI_CHIP_845_G			0x2562
437#define PCI_CHIP_I830_M			0x3577
438#define PCI_CHIP_I855_GM		0x3582
439#define PCI_CHIP_I865_G			0x2572
440#define PCI_CHIP_I915_G			0x2582
441#define PCI_CHIP_I915_GM		0x2592
442#define PCI_CHIP_I945_G			0x2772
443#define PCI_CHIP_I945_GM		0x27A2
444#define PCI_CHIP_I945_GME		0x27AE
445#define PCI_CHIP_G33_G			0x29C2
446#define PCI_CHIP_Q35_G			0x29B2
447#define PCI_CHIP_Q33_G			0x29D2
448
449
450/* ================================================================
451 * intel_context.c:
452 */
453
454extern bool intelInitContext(struct intel_context *intel,
455                             int api,
456                             unsigned major_version,
457                             unsigned minor_version,
458                             const struct gl_config * mesaVis,
459                             __DRIcontext * driContextPriv,
460                             void *sharedContextPrivate,
461                             struct dd_function_table *functions,
462                             unsigned *dri_ctx_error);
463
464extern void intelFinish(struct gl_context * ctx);
465extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
466extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
467
468#define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
469
470extern void intelInitDriverFunctions(struct dd_function_table *functions);
471
472void intel_init_syncobj_functions(struct dd_function_table *functions);
473
474
475/* ================================================================
476 * intel_state.c:
477 */
478
479#define COMPAREFUNC_ALWAYS		0
480#define COMPAREFUNC_NEVER		0x1
481#define COMPAREFUNC_LESS		0x2
482#define COMPAREFUNC_EQUAL		0x3
483#define COMPAREFUNC_LEQUAL		0x4
484#define COMPAREFUNC_GREATER		0x5
485#define COMPAREFUNC_NOTEQUAL		0x6
486#define COMPAREFUNC_GEQUAL		0x7
487
488#define STENCILOP_KEEP			0
489#define STENCILOP_ZERO			0x1
490#define STENCILOP_REPLACE		0x2
491#define STENCILOP_INCRSAT		0x3
492#define STENCILOP_DECRSAT		0x4
493#define STENCILOP_INCR			0x5
494#define STENCILOP_DECR			0x6
495#define STENCILOP_INVERT		0x7
496
497#define LOGICOP_CLEAR			0
498#define LOGICOP_NOR			0x1
499#define LOGICOP_AND_INV 		0x2
500#define LOGICOP_COPY_INV		0x3
501#define LOGICOP_AND_RVRSE		0x4
502#define LOGICOP_INV			0x5
503#define LOGICOP_XOR			0x6
504#define LOGICOP_NAND			0x7
505#define LOGICOP_AND			0x8
506#define LOGICOP_EQUIV			0x9
507#define LOGICOP_NOOP			0xa
508#define LOGICOP_OR_INV			0xb
509#define LOGICOP_COPY			0xc
510#define LOGICOP_OR_RVRSE		0xd
511#define LOGICOP_OR			0xe
512#define LOGICOP_SET			0xf
513
514#define BLENDFACT_ZERO			0x01
515#define BLENDFACT_ONE			0x02
516#define BLENDFACT_SRC_COLR		0x03
517#define BLENDFACT_INV_SRC_COLR 		0x04
518#define BLENDFACT_SRC_ALPHA		0x05
519#define BLENDFACT_INV_SRC_ALPHA 	0x06
520#define BLENDFACT_DST_ALPHA		0x07
521#define BLENDFACT_INV_DST_ALPHA 	0x08
522#define BLENDFACT_DST_COLR		0x09
523#define BLENDFACT_INV_DST_COLR		0x0a
524#define BLENDFACT_SRC_ALPHA_SATURATE	0x0b
525#define BLENDFACT_CONST_COLOR		0x0c
526#define BLENDFACT_INV_CONST_COLOR	0x0d
527#define BLENDFACT_CONST_ALPHA		0x0e
528#define BLENDFACT_INV_CONST_ALPHA	0x0f
529#define BLENDFACT_MASK          	0x0f
530
531enum {
532   DRI_CONF_BO_REUSE_DISABLED,
533   DRI_CONF_BO_REUSE_ALL
534};
535
536extern int intel_translate_shadow_compare_func(GLenum func);
537extern int intel_translate_compare_func(GLenum func);
538extern int intel_translate_stencil_op(GLenum op);
539extern int intel_translate_blend_factor(GLenum factor);
540extern int intel_translate_logic_op(GLenum opcode);
541
542void intel_update_renderbuffers(__DRIcontext *context,
543				__DRIdrawable *drawable);
544void intel_prepare_render(struct intel_context *intel);
545
546void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
547				  uint32_t buffer_id);
548void intel_init_texture_formats(struct gl_context *ctx);
549
550/*======================================================================
551 * Inline conversion functions.
552 * These are better-typed than the macros used previously:
553 */
554static INLINE struct intel_context *
555intel_context(struct gl_context * ctx)
556{
557   return (struct intel_context *) ctx;
558}
559
560static INLINE bool
561is_power_of_two(uint32_t value)
562{
563   return (value & (value - 1)) == 0;
564}
565
566#ifdef __cplusplus
567}
568#endif
569
570#endif
571