intel_context.h revision 19fa29a59288de6ea38501f8a32d8dfc2a08dace 
1/**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
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 VMWARE 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#include <i915_drm.h>
46#ifdef __cplusplus
47	#undef virtual
48#endif
49
50#include "intel_screen.h"
51#include "intel_tex_obj.h"
52
53#include "tnl/t_vertex.h"
54
55#define TAG(x) intel##x
56#include "tnl_dd/t_dd_vertex.h"
57#undef TAG
58
59#define DV_PF_555  (1<<8)
60#define DV_PF_565  (2<<8)
61#define DV_PF_8888 (3<<8)
62#define DV_PF_4444 (8<<8)
63#define DV_PF_1555 (9<<8)
64
65struct intel_region;
66struct intel_context;
67
68typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
69                                intelVertex *, intelVertex *);
70typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
71                                 intelVertex *);
72typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
73
74/**
75 * Bits for intel->Fallback field
76 */
77/*@{*/
78#define INTEL_FALLBACK_DRAW_BUFFER	 0x1
79#define INTEL_FALLBACK_READ_BUFFER	 0x2
80#define INTEL_FALLBACK_DEPTH_BUFFER      0x4
81#define INTEL_FALLBACK_STENCIL_BUFFER    0x8
82#define INTEL_FALLBACK_USER		 0x10
83#define INTEL_FALLBACK_RENDERMODE	 0x20
84#define INTEL_FALLBACK_TEXTURE   	 0x40
85#define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
86/*@}*/
87
88extern void intelFallback(struct intel_context *intel, GLbitfield bit,
89                          bool mode);
90#define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
91
92
93#define INTEL_WRITE_PART  0x1
94#define INTEL_WRITE_FULL  0x2
95#define INTEL_READ        0x4
96
97#ifndef likely
98#ifdef __GNUC__
99#define likely(expr) (__builtin_expect(expr, 1))
100#define unlikely(expr) (__builtin_expect(expr, 0))
101#else
102#define likely(expr) (expr)
103#define unlikely(expr) (expr)
104#endif
105#endif
106
107struct intel_batchbuffer {
108   /** Current batchbuffer being queued up. */
109   drm_intel_bo *bo;
110   /** Last BO submitted to the hardware.  Used for glFinish(). */
111   drm_intel_bo *last_bo;
112
113   uint16_t emit, total;
114   uint16_t used, reserved_space;
115   uint32_t *map;
116   uint32_t *cpu_map;
117#define BATCH_SZ (8192*sizeof(uint32_t))
118};
119
120/**
121 * intel_context is derived from Mesa's context class: struct gl_context.
122 */
123struct intel_context
124{
125   struct gl_context ctx;  /**< base class, must be first field */
126
127   struct
128   {
129      void (*destroy) (struct intel_context * intel);
130      void (*emit_state) (struct intel_context * intel);
131      void (*finish_batch) (struct intel_context * intel);
132      void (*new_batch) (struct intel_context * intel);
133      void (*emit_invarient_state) (struct intel_context * intel);
134      void (*update_texture_state) (struct intel_context * intel);
135
136      void (*render_start) (struct intel_context * intel);
137      void (*render_prevalidate) (struct intel_context * intel);
138      void (*set_draw_region) (struct intel_context * intel,
139                               struct intel_region * draw_regions[],
140                               struct intel_region * depth_region,
141			       GLuint num_regions);
142      void (*update_draw_buffer)(struct intel_context *intel);
143
144      void (*reduced_primitive_state) (struct intel_context * intel,
145                                       GLenum rprim);
146
147      bool (*check_vertex_size) (struct intel_context * intel,
148				      GLuint expected);
149      void (*invalidate_state) (struct intel_context *intel,
150				GLuint new_state);
151
152      void (*assert_not_dirty) (struct intel_context *intel);
153
154      void (*debug_batch)(struct intel_context *intel);
155      void (*annotate_aub)(struct intel_context *intel);
156      bool (*render_target_supported)(struct intel_context *intel,
157				      struct gl_renderbuffer *rb);
158   } vtbl;
159
160   GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
161   GLuint NewGLState;
162
163   dri_bufmgr *bufmgr;
164   unsigned int maxBatchSize;
165
166   /**
167    * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
168    */
169   int gen;
170   bool is_945;
171   bool has_swizzling;
172
173   struct intel_batchbuffer batch;
174
175   drm_intel_bo *first_post_swapbuffers_batch;
176   bool need_throttle;
177   bool no_batch_wrap;
178   bool tnl_pipeline_running; /**< Set while i915's _tnl_run_pipeline. */
179
180   /**
181    * Set if we're either a debug context or the INTEL_DEBUG=perf environment
182    * variable is set, this is the flag indicating to do expensive work that
183    * might lead to a perf_debug() call.
184    */
185   bool perf_debug;
186
187   struct
188   {
189      GLuint id;
190      uint32_t start_ptr; /**< for i8xx */
191      uint32_t primitive;	/**< Current hardware primitive type */
192      void (*flush) (struct intel_context *);
193      drm_intel_bo *vb_bo;
194      uint8_t *vb;
195      unsigned int start_offset; /**< Byte offset of primitive sequence */
196      unsigned int current_offset; /**< Byte offset of next vertex */
197      unsigned int count;	/**< Number of vertices in current primitive */
198   } prim;
199
200   struct {
201      drm_intel_bo *bo;
202      GLuint offset;
203      uint32_t buffer_len;
204      uint32_t buffer_offset;
205      char buffer[4096];
206   } upload;
207
208   uint32_t max_gtt_map_object_size;
209
210   /* Offsets of fields within the current vertex:
211    */
212   GLuint coloroffset;
213   GLuint specoffset;
214   GLuint wpos_offset;
215
216   struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
217   GLuint vertex_attr_count;
218
219   GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
220
221   bool hw_stipple;
222   bool no_rast;
223   bool always_flush_batch;
224   bool always_flush_cache;
225   bool disable_throttling;
226
227   /* State for intelvb.c and inteltris.c.
228    */
229   GLuint RenderIndex;
230   GLmatrix ViewportMatrix;
231   GLenum render_primitive;
232   GLenum reduced_primitive; /*< Only gen < 6 */
233   GLuint vertex_size;
234   GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
235
236   /* Fallback rasterization functions
237    */
238   intel_point_func draw_point;
239   intel_line_func draw_line;
240   intel_tri_func draw_tri;
241
242   /**
243    * Set if rendering has occurred to the drawable's front buffer.
244    *
245    * This is used in the DRI2 case to detect that glFlush should also copy
246    * the contents of the fake front buffer to the real front buffer.
247    */
248   bool front_buffer_dirty;
249
250   bool use_early_z;
251
252   __DRIcontext *driContext;
253   struct intel_screen *intelScreen;
254
255   /**
256    * Configuration cache
257    */
258   driOptionCache optionCache;
259};
260
261extern char *__progname;
262
263
264#define SUBPIXEL_X 0.125
265#define SUBPIXEL_Y 0.125
266
267#define INTEL_FIREVERTICES(intel)		\
268do {						\
269   if ((intel)->prim.flush)			\
270      (intel)->prim.flush(intel);		\
271} while (0)
272
273/* ================================================================
274 * Debugging:
275 */
276extern int INTEL_DEBUG;
277
278#define DEBUG_TEXTURE	0x1
279#define DEBUG_STATE	0x2
280#define DEBUG_BLIT	0x8
281#define DEBUG_MIPTREE   0x10
282#define DEBUG_PERF	0x20
283#define DEBUG_BATCH     0x80
284#define DEBUG_PIXEL     0x100
285#define DEBUG_BUFMGR    0x200
286#define DEBUG_REGION    0x400
287#define DEBUG_FBO       0x800
288#define DEBUG_SYNC	0x2000
289#define DEBUG_DRI       0x10000
290#define DEBUG_STATS     0x100000
291#define DEBUG_WM        0x400000
292#define DEBUG_AUB       0x4000000
293
294#ifdef HAVE_ANDROID_PLATFORM
295#define LOG_TAG "INTEL-MESA"
296#include <cutils/log.h>
297#ifndef ALOGW
298#define ALOGW LOGW
299#endif
300#define dbg_printf(...)	ALOGW(__VA_ARGS__)
301#else
302#define dbg_printf(...)	printf(__VA_ARGS__)
303#endif /* HAVE_ANDROID_PLATFORM */
304
305#define DBG(...) do {						\
306	if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))		\
307		dbg_printf(__VA_ARGS__);			\
308} while(0)
309
310#define perf_debug(...) do {					\
311   static GLuint msg_id = 0;                                    \
312   if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
313      dbg_printf(__VA_ARGS__);                                  \
314   if (intel->perf_debug)                                       \
315      _mesa_gl_debug(&intel->ctx, &msg_id,                      \
316                     MESA_DEBUG_SOURCE_API,                     \
317                     MESA_DEBUG_TYPE_PERFORMANCE,               \
318                     MESA_DEBUG_SEVERITY_MEDIUM,                \
319                     __VA_ARGS__);                              \
320} while(0)
321
322#define WARN_ONCE(cond, fmt...) do {                            \
323   if (unlikely(cond)) {                                        \
324      static bool _warned = false;                              \
325      static GLuint msg_id = 0;                                 \
326      if (!_warned) {                                           \
327         fprintf(stderr, "WARNING: ");                          \
328         fprintf(stderr, fmt);                                  \
329         _warned = true;                                        \
330                                                                \
331         _mesa_gl_debug(ctx, &msg_id,                           \
332                        MESA_DEBUG_SOURCE_API,                  \
333                        MESA_DEBUG_TYPE_OTHER,                  \
334                        MESA_DEBUG_SEVERITY_HIGH, fmt);         \
335      }                                                         \
336   }                                                            \
337} while (0)
338
339/* ================================================================
340 * intel_context.c:
341 */
342
343extern const char *const i915_vendor_string;
344
345extern const char *i915_get_renderer_string(unsigned deviceID);
346
347extern bool intelInitContext(struct intel_context *intel,
348                             int api,
349                             unsigned major_version,
350                             unsigned minor_version,
351                             uint32_t flags,
352                             const struct gl_config * mesaVis,
353                             __DRIcontext * driContextPriv,
354                             void *sharedContextPrivate,
355                             struct dd_function_table *functions,
356                             unsigned *dri_ctx_error);
357
358extern void intelFinish(struct gl_context * ctx);
359extern void intel_flush_rendering_to_batch(struct gl_context *ctx);
360extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
361
362#define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
363
364extern void intelInitDriverFunctions(struct dd_function_table *functions);
365
366void intel_init_syncobj_functions(struct dd_function_table *functions);
367
368
369/* ================================================================
370 * intel_state.c:
371 */
372
373#define COMPAREFUNC_ALWAYS		0
374#define COMPAREFUNC_NEVER		0x1
375#define COMPAREFUNC_LESS		0x2
376#define COMPAREFUNC_EQUAL		0x3
377#define COMPAREFUNC_LEQUAL		0x4
378#define COMPAREFUNC_GREATER		0x5
379#define COMPAREFUNC_NOTEQUAL		0x6
380#define COMPAREFUNC_GEQUAL		0x7
381
382#define STENCILOP_KEEP			0
383#define STENCILOP_ZERO			0x1
384#define STENCILOP_REPLACE		0x2
385#define STENCILOP_INCRSAT		0x3
386#define STENCILOP_DECRSAT		0x4
387#define STENCILOP_INCR			0x5
388#define STENCILOP_DECR			0x6
389#define STENCILOP_INVERT		0x7
390
391#define LOGICOP_CLEAR			0
392#define LOGICOP_NOR			0x1
393#define LOGICOP_AND_INV 		0x2
394#define LOGICOP_COPY_INV		0x3
395#define LOGICOP_AND_RVRSE		0x4
396#define LOGICOP_INV			0x5
397#define LOGICOP_XOR			0x6
398#define LOGICOP_NAND			0x7
399#define LOGICOP_AND			0x8
400#define LOGICOP_EQUIV			0x9
401#define LOGICOP_NOOP			0xa
402#define LOGICOP_OR_INV			0xb
403#define LOGICOP_COPY			0xc
404#define LOGICOP_OR_RVRSE		0xd
405#define LOGICOP_OR			0xe
406#define LOGICOP_SET			0xf
407
408#define BLENDFACT_ZERO			0x01
409#define BLENDFACT_ONE			0x02
410#define BLENDFACT_SRC_COLR		0x03
411#define BLENDFACT_INV_SRC_COLR 		0x04
412#define BLENDFACT_SRC_ALPHA		0x05
413#define BLENDFACT_INV_SRC_ALPHA 	0x06
414#define BLENDFACT_DST_ALPHA		0x07
415#define BLENDFACT_INV_DST_ALPHA 	0x08
416#define BLENDFACT_DST_COLR		0x09
417#define BLENDFACT_INV_DST_COLR		0x0a
418#define BLENDFACT_SRC_ALPHA_SATURATE	0x0b
419#define BLENDFACT_CONST_COLOR		0x0c
420#define BLENDFACT_INV_CONST_COLOR	0x0d
421#define BLENDFACT_CONST_ALPHA		0x0e
422#define BLENDFACT_INV_CONST_ALPHA	0x0f
423#define BLENDFACT_MASK          	0x0f
424
425enum {
426   DRI_CONF_BO_REUSE_DISABLED,
427   DRI_CONF_BO_REUSE_ALL
428};
429
430extern int intel_translate_shadow_compare_func(GLenum func);
431extern int intel_translate_compare_func(GLenum func);
432extern int intel_translate_stencil_op(GLenum op);
433extern int intel_translate_blend_factor(GLenum factor);
434extern int intel_translate_logic_op(GLenum opcode);
435
436void intel_update_renderbuffers(__DRIcontext *context,
437				__DRIdrawable *drawable);
438void intel_prepare_render(struct intel_context *intel);
439
440void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
441				  uint32_t buffer_id);
442void intel_init_texture_formats(struct gl_context *ctx);
443
444/*======================================================================
445 * Inline conversion functions.
446 * These are better-typed than the macros used previously:
447 */
448static inline struct intel_context *
449intel_context(struct gl_context * ctx)
450{
451   return (struct intel_context *) ctx;
452}
453
454#ifdef __cplusplus
455}
456#endif
457
458#endif
459