dri_interface.h 29.5 KB
Newer Older
Brian Paul's avatar
Brian Paul committed
1
2
/*
 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
3
 * Copyright 2007-2008 Red Hat, Inc.
Brian Paul's avatar
Brian Paul committed
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 * (C) Copyright IBM Corporation 2004
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * \file dri_interface.h
 *
 * This file contains all the types and functions that define the interface
 * between a DRI driver and driver loader.  Currently, the most common driver
 * loader is the XFree86 libGL.so.  However, other loaders do exist, and in
 * the future the server-side libglx.a will also be a loader.
 * 
 * \author Kevin E. Martin <kevin@precisioninsight.com>
 * \author Ian Romanick <idr@us.ibm.com>
37
 * \author Kristian Høgsberg <krh@redhat.com>
Brian Paul's avatar
Brian Paul committed
38
39
 */

40
41
42
#ifndef DRI_INTERFACE_H
#define DRI_INTERFACE_H

43
/* For archs with no drm.h */
44
45
46
47
48
49
50
#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
#ifndef __NOT_HAVE_DRM_H
#define __NOT_HAVE_DRM_H
#endif
#endif

#ifndef __NOT_HAVE_DRM_H
51
#include <drm.h>
52
53
54
55
56
#else
typedef unsigned int drm_context_t;
typedef unsigned int drm_drawable_t;
typedef struct drm_clip_rect drm_clip_rect_t;
#endif
Brian Paul's avatar
Brian Paul committed
57
58
59
60
61
62
63
64

/**
 * \name DRI interface structures
 *
 * The following structures define the interface between the GLX client
 * side library and the DRI (direct rendering infrastructure).
 */
/*@{*/
65
66
67
68
typedef struct __DRIdisplayRec		__DRIdisplay;
typedef struct __DRIscreenRec		__DRIscreen;
typedef struct __DRIcontextRec		__DRIcontext;
typedef struct __DRIdrawableRec		__DRIdrawable;
69
typedef struct __DRIconfigRec		__DRIconfig;
70
71
typedef struct __DRIframebufferRec	__DRIframebuffer;
typedef struct __DRIversionRec		__DRIversion;
72

73
typedef struct __DRIcoreExtensionRec		__DRIcoreExtension;
74
typedef struct __DRIextensionRec		__DRIextension;
75
typedef struct __DRIcopySubBufferExtensionRec	__DRIcopySubBufferExtension;
76
typedef struct __DRIswapControlExtensionRec	__DRIswapControlExtension;
77
typedef struct __DRIframeTrackingExtensionRec	__DRIframeTrackingExtension;
78
typedef struct __DRImediaStreamCounterExtensionRec	__DRImediaStreamCounterExtension;
79
typedef struct __DRItexOffsetExtensionRec	__DRItexOffsetExtension;
80
typedef struct __DRItexBufferExtensionRec	__DRItexBufferExtension;
81
typedef struct __DRIlegacyExtensionRec		__DRIlegacyExtension;
82
typedef struct __DRIswrastExtensionRec		__DRIswrastExtension;
83
84
85
typedef struct __DRIbufferRec			__DRIbuffer;
typedef struct __DRIdri2ExtensionRec		__DRIdri2Extension;
typedef struct __DRIdri2LoaderExtensionRec	__DRIdri2LoaderExtension;
86
typedef struct __DRI2flushExtensionRec	__DRI2flushExtension;
87

Brian Paul's avatar
Brian Paul committed
88
89
90
/*@}*/


91
92
/**
 * Extension struct.  Drivers 'inherit' from this struct by embedding
93
 * it as the first element in the extension struct.
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
 *
 * We never break API in for a DRI extension.  If we need to change
 * the way things work in a non-backwards compatible manner, we
 * introduce a new extension.  During a transition period, we can
 * leave both the old and the new extension in the driver, which
 * allows us to move to the new interface without having to update the
 * loader(s) in lock step.
 *
 * However, we can add entry points to an extension over time as long
 * as we don't break the old ones.  As we add entry points to an
 * extension, we increase the version number.  The corresponding
 * #define can be used to guard code that accesses the new entry
 * points at compile time and the version field in the extension
 * struct can be used at run-time to determine how to use the
 * extension.
109
110
111
 */
struct __DRIextensionRec {
    const char *name;
112
    int version;
113
114
};

115
116
117
118
119
120
121
122
/**
 * The first set of extension are the screen extensions, returned by
 * __DRIcore::getExtensions().  This entry point will return a list of
 * extensions and the loader can use the ones it knows about by
 * casting them to more specific extensions and advertising any GLX
 * extensions the DRI extensions enables.
 */

123
124
125
126
/**
 * Used by drivers to indicate support for setting the read drawable.
 */
#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
127
#define __DRI_READ_DRAWABLE_VERSION 1
128

129
130
131
132
/**
 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
 */
#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
133
#define __DRI_COPY_SUB_BUFFER_VERSION 1
134
135
136
137
138
struct __DRIcopySubBufferExtensionRec {
    __DRIextension base;
    void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
};

139
140
141
142
143
/**
 * Used by drivers that implement the GLX_SGI_swap_control or
 * GLX_MESA_swap_control extension.
 */
#define __DRI_SWAP_CONTROL "DRI_SwapControl"
144
#define __DRI_SWAP_CONTROL_VERSION 1
145
146
147
148
149
struct __DRIswapControlExtensionRec {
    __DRIextension base;
    void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
    unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
};
150

151
152
153
154
/**
 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
 */
#define __DRI_FRAME_TRACKING "DRI_FrameTracking"
155
#define __DRI_FRAME_TRACKING_VERSION 1
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
struct __DRIframeTrackingExtensionRec {
    __DRIextension base;

    /**
     * Enable or disable frame usage tracking.
     * 
     * \since Internal API version 20030317.
     */
    int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);

    /**
     * Retrieve frame usage information.
     * 
     * \since Internal API version 20030317.
     */
    int (*queryFrameTracking)(__DRIdrawable *drawable,
			      int64_t * sbc, int64_t * missedFrames,
			      float * lastMissedUsage, float * usage);
};

176
177
178
179
180

/**
 * Used by drivers that implement the GLX_SGI_video_sync extension.
 */
#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
181
#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
182
183
184
185
186
187
188
189
190
191
192
193
struct __DRImediaStreamCounterExtensionRec {
    __DRIextension base;

    /**
     * Wait for the MSC to equal target_msc, or, if that has already passed,
     * the next time (MSC % divisor) is equal to remainder.  If divisor is
     * zero, the function will return as soon as MSC is greater than or equal
     * to target_msc.
     */
    int (*waitForMSC)(__DRIdrawable *drawable,
		      int64_t target_msc, int64_t divisor, int64_t remainder,
		      int64_t * msc, int64_t * sbc);
194
195
196
197
198

    /**
     * Get the number of vertical refreshes since some point in time before
     * this function was first called (i.e., system start up).
     */
199
    int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
200
			  int64_t *msc);
201
202
203
};


204
#define __DRI_TEX_OFFSET "DRI_TexOffset"
205
#define __DRI_TEX_OFFSET_VERSION 1
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
struct __DRItexOffsetExtensionRec {
    __DRIextension base;

    /**
     * Method to override base texture image with a driver specific 'offset'.
     * The depth passed in allows e.g. to ignore the alpha channel of texture
     * images where the non-alpha components don't occupy a whole texel.
     *
     * For GLX_EXT_texture_from_pixmap with AIGLX.
     */
    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
			 unsigned long long offset, GLint depth, GLuint pitch);
};


221
222
223
224
225
226
227
/* Valid values for format in the setTexBuffer2 function below.  These
 * values match the GLX tokens for compatibility reasons, but we
 * define them here since the DRI interface can't depend on GLX. */
#define __DRI_TEXTURE_FORMAT_NONE        0x20D8
#define __DRI_TEXTURE_FORMAT_RGB         0x20D9
#define __DRI_TEXTURE_FORMAT_RGBA        0x20DA

228
#define __DRI_TEX_BUFFER "DRI_TexBuffer"
229
#define __DRI_TEX_BUFFER_VERSION 2
230
231
232
233
struct __DRItexBufferExtensionRec {
    __DRIextension base;

    /**
234
235
     * Method to override base texture image with the contents of a
     * __DRIdrawable. 
236
     *
237
238
     * For GLX_EXT_texture_from_pixmap with AIGLX.  Deprecated in favor of
     * setTexBuffer2 in version 2 of this interface
239
240
     */
    void (*setTexBuffer)(__DRIcontext *pDRICtx,
241
242
			 GLint target,
			 __DRIdrawable *pDraw);
243
244
245
246
247
248
249
250
251
252
253

    /**
     * Method to override base texture image with the contents of a
     * __DRIdrawable, including the required texture format attribute.
     *
     * For GLX_EXT_texture_from_pixmap with AIGLX.
     */
    void (*setTexBuffer2)(__DRIcontext *pDRICtx,
			  GLint target,
			  GLint format,
			  __DRIdrawable *pDraw);
zjuan's avatar
zjuan committed
254
255
256
257
258
259
260
261
262
    /**
     * Method to release texture buffer in case some special platform
     * need this.
     *
     * For GLX_EXT_texture_from_pixmap with AIGLX.
     */
    void (*releaseTexBuffer)(__DRIcontext *pDRICtx,
			GLint target,
			__DRIdrawable *pDraw);
263
264
};

265
266
267
268
/**
 * Used by drivers that implement DRI2
 */
#define __DRI2_FLUSH "DRI2_Flush"
269
#define __DRI2_FLUSH_VERSION 3
270
271
272
struct __DRI2flushExtensionRec {
    __DRIextension base;
    void (*flush)(__DRIdrawable *drawable);
Jesse Barnes's avatar
Jesse Barnes committed
273
274

    /**
275
276
     * Ask the driver to call getBuffers/getBuffersWithFormat before
     * it starts rendering again.
Jesse Barnes's avatar
Jesse Barnes committed
277
     *
278
     * \param drawable the drawable to invalidate
Jesse Barnes's avatar
Jesse Barnes committed
279
     *
280
     * \since 3
Jesse Barnes's avatar
Jesse Barnes committed
281
     */
282
    void (*invalidate)(__DRIdrawable *drawable);
283
284
};

285

Brian Paul's avatar
Brian Paul committed
286
287
288
289
290
291
292
293
/**
 * XML document describing the configuration options supported by the
 * driver.
 */
extern const char __driConfigOptions[];

/*@}*/

294
295
296
/**
 * The following extensions describe loader features that the DRI
 * driver can make use of.  Some of these are mandatory, such as the
297
 * getDrawableInfo extension for DRI and the DRI Loader extensions for
298
299
300
301
302
 * DRI2, while others are optional, and if present allow the driver to
 * expose certain features.  The loader pass in a NULL terminated
 * array of these extensions to the driver in the createNewScreen
 * constructor.
 */
303

304
305
306
typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
307
typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
308
typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
309
310


311
312
313
314
315
316
317
/**
 * Callback to getDrawableInfo protocol
 */
#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
#define __DRI_GET_DRAWABLE_INFO_VERSION 1
struct __DRIgetDrawableInfoExtensionRec {
    __DRIextension base;
318
319
320
321
322

    /**
     * This function is used to get information about the position, size, and
     * clip rects of a drawable.
     */
323
    GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
324
	unsigned int * index, unsigned int * stamp,
325
326
327
        int * x, int * y, int * width, int * height,
        int * numClipRects, drm_clip_rect_t ** pClipRects,
        int * backX, int * backY,
328
329
	int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
	void *loaderPrivate);
330
};
331

332
333
334
335
336
337
338
/**
 * Callback to get system time for media stream counter extensions.
 */
#define __DRI_SYSTEM_TIME "DRI_SystemTime"
#define __DRI_SYSTEM_TIME_VERSION 1
struct __DRIsystemTimeExtensionRec {
    __DRIextension base;
339
340
341
342
343
344
345
346
347
348
349
350
351

    /**
     * Get the 64-bit unadjusted system time (UST).
     */
    int (*getUST)(int64_t * ust);

    /**
     * Get the media stream counter (MSC) rate.
     * 
     * Matching the definition in GLX_OML_sync_control, this function returns
     * the rate of the "media stream counter".  In practical terms, this is
     * the frame refresh rate of the display.
     */
352
    GLboolean (*getMSCRate)(__DRIdrawable *draw,
353
354
			    int32_t * numerator, int32_t * denominator,
			    void *loaderPrivate);
355
356
357
358
359
360
361
362
363
};

/**
 * Damage reporting
 */
#define __DRI_DAMAGE "DRI_Damage"
#define __DRI_DAMAGE_VERSION 1
struct __DRIdamageExtensionRec {
    __DRIextension base;
364
365
366
367
368
369
370
371
372
373
374
375
376
377

    /**
     * Reports areas of the given drawable which have been modified by the
     * driver.
     *
     * \param drawable which the drawing was done to.
     * \param rects rectangles affected, with the drawable origin as the
     *	      origin.
     * \param x X offset of the drawable within the screen (used in the
     *	      front_buffer case)
     * \param y Y offset of the drawable within the screen.
     * \param front_buffer boolean flag for whether the drawing to the
     * 	      drawable was actually done directly to the front buffer (instead
     *	      of backing storage, for example)
378
     * \param loaderPrivate the data passed in at createNewDrawable time
379
     */
380
    void (*reportDamage)(__DRIdrawable *draw,
381
382
			 int x, int y,
			 drm_clip_rect_t *rects, int num_rects,
383
384
			 GLboolean front_buffer,
			 void *loaderPrivate);
385
386
};

387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
#define __DRI_SWRAST_IMAGE_OP_DRAW	1
#define __DRI_SWRAST_IMAGE_OP_CLEAR	2
#define __DRI_SWRAST_IMAGE_OP_SWAP	3

/**
 * SWRast Loader extension.
 */
#define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
#define __DRI_SWRAST_LOADER_VERSION 1
struct __DRIswrastLoaderExtensionRec {
    __DRIextension base;

    /*
     * Drawable position and size
     */
    void (*getDrawableInfo)(__DRIdrawable *drawable,
			    int *x, int *y, int *width, int *height,
			    void *loaderPrivate);

    /**
     * Put image to drawable
     */
    void (*putImage)(__DRIdrawable *drawable, int op,
410
411
		     int x, int y, int width, int height,
		     char *data, void *loaderPrivate);
412
413

    /**
414
     * Get image from readable
415
     */
416
417
418
    void (*getImage)(__DRIdrawable *readable,
		     int x, int y, int width, int height,
		     char *data, void *loaderPrivate);
419
420
};

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
/**
 * Invalidate loader extension.  The presence of this extension
 * indicates to the DRI driver that the loader will call invalidate in
 * the __DRI2_FLUSH extension, whenever the needs to query for new
 * buffers.  This means that the DRI driver can drop the polling in
 * glViewport().
 *
 * The extension doesn't provide any functionality, it's only use to
 * indicate to the driver that it can use the new semantics.  A DRI
 * driver can use this to switch between the different semantics or
 * just refuse to initialize if this extension isn't present.
 */
#define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
#define __DRI_USE_INVALIDATE_VERSION 1

typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension;
struct __DRIuseInvalidateExtensionRec {
   __DRIextension base;
};

441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
/**
 * The remaining extensions describe driver extensions, immediately
 * available interfaces provided by the driver.  To start using the
 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
 * the extension you need in the array.
 */
#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"

/**
 * Tokens for __DRIconfig attribs.  A number of attributes defined by
 * GLX or EGL standards are not in the table, as they must be provided
 * by the loader.  For example, FBConfig ID or visual ID, drawable type.
 */

#define __DRI_ATTRIB_BUFFER_SIZE		 1
#define __DRI_ATTRIB_LEVEL			 2
#define __DRI_ATTRIB_RED_SIZE			 3
#define __DRI_ATTRIB_GREEN_SIZE			 4
#define __DRI_ATTRIB_BLUE_SIZE			 5
#define __DRI_ATTRIB_LUMINANCE_SIZE		 6
#define __DRI_ATTRIB_ALPHA_SIZE			 7
#define __DRI_ATTRIB_ALPHA_MASK_SIZE		 8
#define __DRI_ATTRIB_DEPTH_SIZE			 9
#define __DRI_ATTRIB_STENCIL_SIZE		10
#define __DRI_ATTRIB_ACCUM_RED_SIZE		11
#define __DRI_ATTRIB_ACCUM_GREEN_SIZE		12
#define __DRI_ATTRIB_ACCUM_BLUE_SIZE		13
#define __DRI_ATTRIB_ACCUM_ALPHA_SIZE		14
#define __DRI_ATTRIB_SAMPLE_BUFFERS		15
#define __DRI_ATTRIB_SAMPLES			16
#define __DRI_ATTRIB_RENDER_TYPE		17
#define __DRI_ATTRIB_CONFIG_CAVEAT		18
#define __DRI_ATTRIB_CONFORMANT			19
#define __DRI_ATTRIB_DOUBLE_BUFFER		20
#define __DRI_ATTRIB_STEREO			21
#define __DRI_ATTRIB_AUX_BUFFERS		22
#define __DRI_ATTRIB_TRANSPARENT_TYPE		23
#define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE	24
#define __DRI_ATTRIB_TRANSPARENT_RED_VALUE	25
#define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE	26
#define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE	27
#define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE	28
#define __DRI_ATTRIB_FLOAT_MODE			29
#define __DRI_ATTRIB_RED_MASK			30
#define __DRI_ATTRIB_GREEN_MASK			31
#define __DRI_ATTRIB_BLUE_MASK			32
#define __DRI_ATTRIB_ALPHA_MASK			33
#define __DRI_ATTRIB_MAX_PBUFFER_WIDTH		34
#define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT		35
#define __DRI_ATTRIB_MAX_PBUFFER_PIXELS		36
#define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH	37
#define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT	38
#define __DRI_ATTRIB_VISUAL_SELECT_GROUP	39
#define __DRI_ATTRIB_SWAP_METHOD		40
#define __DRI_ATTRIB_MAX_SWAP_INTERVAL		41
#define __DRI_ATTRIB_MIN_SWAP_INTERVAL		42
#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB	43
#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA	44
#define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE	45
#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS	46
#define __DRI_ATTRIB_YINVERTED			47
502
#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE	48
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588

/* __DRI_ATTRIB_RENDER_TYPE */
#define __DRI_ATTRIB_RGBA_BIT			0x01	
#define __DRI_ATTRIB_COLOR_INDEX_BIT		0x02
#define __DRI_ATTRIB_LUMINANCE_BIT		0x04

/* __DRI_ATTRIB_CONFIG_CAVEAT */
#define __DRI_ATTRIB_SLOW_BIT			0x01
#define __DRI_ATTRIB_NON_CONFORMANT_CONFIG	0x02

/* __DRI_ATTRIB_TRANSPARENT_TYPE */
#define __DRI_ATTRIB_TRANSPARENT_RGB		0x00
#define __DRI_ATTRIB_TRANSPARENT_INDEX		0x01

/* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS	 */
#define __DRI_ATTRIB_TEXTURE_1D_BIT		0x01
#define __DRI_ATTRIB_TEXTURE_2D_BIT		0x02
#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT	0x04

/**
 * This extension defines the core DRI functionality.
 */
#define __DRI_CORE "DRI_Core"
#define __DRI_CORE_VERSION 1

struct __DRIcoreExtensionRec {
    __DRIextension base;

    __DRIscreen *(*createNewScreen)(int screen, int fd,
				    unsigned int sarea_handle,
				    const __DRIextension **extensions,
				    const __DRIconfig ***driverConfigs,
				    void *loaderPrivate);

    void (*destroyScreen)(__DRIscreen *screen);

    const __DRIextension **(*getExtensions)(__DRIscreen *screen);

    int (*getConfigAttrib)(const __DRIconfig *config,
			   unsigned int attrib,
			   unsigned int *value);

    int (*indexConfigAttrib)(const __DRIconfig *config, int index,
			     unsigned int *attrib, unsigned int *value);

    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
					const __DRIconfig *config,
					unsigned int drawable_id,
					unsigned int head,
					void *loaderPrivate);

    void (*destroyDrawable)(__DRIdrawable *drawable);

    void (*swapBuffers)(__DRIdrawable *drawable);

    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
				      const __DRIconfig *config,
				      __DRIcontext *shared,
				      void *loaderPrivate);

    int (*copyContext)(__DRIcontext *dest,
		       __DRIcontext *src,
		       unsigned long mask);

    void (*destroyContext)(__DRIcontext *context);

    int (*bindContext)(__DRIcontext *ctx,
		       __DRIdrawable *pdraw,
		       __DRIdrawable *pread);

    int (*unbindContext)(__DRIcontext *ctx);
};

/**
 * Stored version of some component (i.e., server-side DRI module, kernel-side
 * DRM, etc.).
 * 
 * \todo
 * There are several data structures that explicitly store a major version,
 * minor version, and patch level.  These structures should be modified to
 * have a \c __DRIversionRec instead.
 */
struct __DRIversionRec {
    int    major;        /**< Major version number. */
    int    minor;        /**< Minor version number. */
    int    patch;        /**< Patch-level. */
589
590
};

Brian Paul's avatar
Brian Paul committed
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
/**
 * Framebuffer information record.  Used by libGL to communicate information
 * about the framebuffer to the driver's \c __driCreateNewScreen function.
 * 
 * In XFree86, most of this information is derrived from data returned by
 * calling \c XF86DRIGetDeviceInfo.
 *
 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
 *     __driUtilCreateNewScreen CallCreateNewScreen
 *
 * \bug This structure could be better named.
 */
struct __DRIframebufferRec {
    unsigned char *base;    /**< Framebuffer base address in the CPU's
			     * address space.  This value is calculated by
			     * calling \c drmMap on the framebuffer handle
			     * returned by \c XF86DRIGetDeviceInfo (or a
			     * similar function).
			     */
    int size;               /**< Framebuffer size, in bytes. */
    int stride;             /**< Number of bytes from one line to the next. */
    int width;              /**< Pixel width of the framebuffer. */
    int height;             /**< Pixel height of the framebuffer. */
    int dev_priv_size;      /**< Size of the driver's dev-priv structure. */
    void *dev_priv;         /**< Pointer to the driver's dev-priv structure. */
};


/**
620
621
622
 * This extension provides alternative screen, drawable and context
 * constructors for legacy DRI functionality.  This is used in
 * conjunction with the core extension.
Brian Paul's avatar
Brian Paul committed
623
 */
624
625
#define __DRI_LEGACY "DRI_Legacy"
#define __DRI_LEGACY_VERSION 1
Brian Paul's avatar
Brian Paul committed
626

627
628
struct __DRIlegacyExtensionRec {
    __DRIextension base;
Brian Paul's avatar
Brian Paul committed
629

630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
    __DRIscreen *(*createNewScreen)(int screen,
				    const __DRIversion *ddx_version,
				    const __DRIversion *dri_version,
				    const __DRIversion *drm_version,
				    const __DRIframebuffer *frame_buffer,
				    void *pSAREA, int fd, 
				    const __DRIextension **extensions,
				    const __DRIconfig ***driver_configs,
				    void *loaderPrivate);

    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
					const __DRIconfig *config,
					drm_drawable_t hwDrawable,
					int renderType, const int *attrs,
					void *loaderPrivate);

    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
				      const __DRIconfig *config,
				      int render_type,
				      __DRIcontext *shared,
				      drm_context_t hwContext,
				      void *loaderPrivate);
Brian Paul's avatar
Brian Paul committed
652
};
653

654
655
656
657
658
659
/**
 * This extension provides alternative screen, drawable and context
 * constructors for swrast DRI functionality.  This is used in
 * conjunction with the core extension.
 */
#define __DRI_SWRAST "DRI_SWRast"
660
#define __DRI_SWRAST_VERSION 2
661
662
663
664
665
666
667
668
669
670
671
672

struct __DRIswrastExtensionRec {
    __DRIextension base;

    __DRIscreen *(*createNewScreen)(int screen,
				    const __DRIextension **extensions,
				    const __DRIconfig ***driver_configs,
				    void *loaderPrivate);

    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
					const __DRIconfig *config,
					void *loaderPrivate);
673
674
675
676
677
678
679

   /* Since version 2 */
   __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
                                           int api,
                                           const __DRIconfig *config,
                                           __DRIcontext *shared,
                                           void *data);
680
681
};

682
683
684
685
686
687
688
689
690
691
/**
 * DRI2 Loader extension.
 */
#define __DRI_BUFFER_FRONT_LEFT		0
#define __DRI_BUFFER_BACK_LEFT		1
#define __DRI_BUFFER_FRONT_RIGHT	2
#define __DRI_BUFFER_BACK_RIGHT		3
#define __DRI_BUFFER_DEPTH		4
#define __DRI_BUFFER_STENCIL		5
#define __DRI_BUFFER_ACCUM		6
692
693
#define __DRI_BUFFER_FAKE_FRONT_LEFT	7
#define __DRI_BUFFER_FAKE_FRONT_RIGHT	8
694
#define __DRI_BUFFER_DEPTH_STENCIL	9  /**< Only available with DRI2 1.1 */
695
#define __DRI_BUFFER_HIZ		10
696

697
698
699
/* Inofficial and for internal use. Increase when adding a new buffer token. */
#define __DRI_BUFFER_COUNT		11

700
701
702
703
704
705
706
707
708
struct __DRIbufferRec {
    unsigned int attachment;
    unsigned int name;
    unsigned int pitch;
    unsigned int cpp;
    unsigned int flags;
};

#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
709
#define __DRI_DRI2_LOADER_VERSION 3
710
711
712
713
714
715
716
struct __DRIdri2LoaderExtensionRec {
    __DRIextension base;

    __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
			       int *width, int *height,
			       unsigned int *attachments, int count,
			       int *out_count, void *loaderPrivate);
717
718
719
720
721
722
723
724
725
726
727
728
729

    /**
     * Flush pending front-buffer rendering
     *
     * Any rendering that has been performed to the
     * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
     * \c __DRI_BUFFER_FRONT_LEFT.
     *
     * \param driDrawable    Drawable whose front-buffer is to be flushed
     * \param loaderPrivate  Loader's private data that was previously passed
     *                       into __DRIdri2ExtensionRec::createNewDrawable
     */
    void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754


    /**
     * Get list of buffers from the server
     *
     * Gets a list of buffer for the specified set of attachments.  Unlike
     * \c ::getBuffers, this function takes a list of attachments paired with
     * opaque \c unsigned \c int value describing the format of the buffer.
     * It is the responsibility of the caller to know what the service that
     * allocates the buffers will expect to receive for the format.
     *
     * \param driDrawable    Drawable whose buffers are being queried.
     * \param width          Output where the width of the buffers is stored.
     * \param height         Output where the height of the buffers is stored.
     * \param attachments    List of pairs of attachment ID and opaque format
     *                       requested for the drawable.
     * \param count          Number of attachment / format pairs stored in
     *                       \c attachments.
     * \param loaderPrivate  Loader's private data that was previously passed
     *                       into __DRIdri2ExtensionRec::createNewDrawable.
     */
    __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
					 int *width, int *height,
					 unsigned int *attachments, int count,
					 int *out_count, void *loaderPrivate);
755
756
757
758
759
760
761
};

/**
 * This extension provides alternative screen, drawable and context
 * constructors for DRI2.
 */
#define __DRI_DRI2 "DRI_DRI2"
762
763
764
765
766
#define __DRI_DRI2_VERSION 2

#define __DRI_API_OPENGL	0
#define __DRI_API_GLES		1
#define __DRI_API_GLES2		2
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784

struct __DRIdri2ExtensionRec {
    __DRIextension base;

    __DRIscreen *(*createNewScreen)(int screen, int fd,
				    const __DRIextension **extensions,
				    const __DRIconfig ***driver_configs,
				    void *loaderPrivate);

    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
					const __DRIconfig *config,
					void *loaderPrivate);

    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
				      const __DRIconfig *config,
				      __DRIcontext *shared,
				      void *loaderPrivate);

785
786
787
788
789
790
791
792
   /* Since version 2 */
   unsigned int (*getAPIMask)(__DRIscreen *screen);

   __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
					   int api,
					   const __DRIconfig *config,
					   __DRIcontext *shared,
					   void *data);
793
794
795
796
797
798
799
800

   __DRIbuffer *(*allocateBuffer)(__DRIscreen *screen,
				  unsigned int attachment,
				  unsigned int format,
				  int width,
				  int height);
   void (*releaseBuffer)(__DRIscreen *screen,
			 __DRIbuffer *buffer);
801
802
};

803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820

/**
 * This extension provides functionality to enable various EGLImage
 * extensions.
 */
#define __DRI_IMAGE "DRI_IMAGE"
#define __DRI_IMAGE_VERSION 1

/**
 * These formats correspond to the similarly named MESA_FORMAT_*
 * tokens, except in the native endian of the CPU.  For example, on
 * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
 * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
 */
#define __DRI_IMAGE_FORMAT_RGB565       0x1001
#define __DRI_IMAGE_FORMAT_XRGB8888     0x1002
#define __DRI_IMAGE_FORMAT_ARGB8888     0x1003

821
822
#define __DRI_IMAGE_USE_SHARE		0x0001
#define __DRI_IMAGE_USE_SCANOUT		0x0002
823
#define __DRI_IMAGE_USE_CURSOR		0x0004
824
825
826
827
828
829
830
831
832

/**
 * queryImage attributes
 */

#define __DRI_IMAGE_ATTRIB_STRIDE	0x2000
#define __DRI_IMAGE_ATTRIB_HANDLE	0x2001
#define __DRI_IMAGE_ATTRIB_NAME		0x2002

833
834
835
836
837
typedef struct __DRIimageRec          __DRIimage;
typedef struct __DRIimageExtensionRec __DRIimageExtension;
struct __DRIimageExtensionRec {
    __DRIextension base;

838
    __DRIimage *(*createImageFromName)(__DRIscreen *screen,
839
840
841
842
843
844
845
846
847
				       int width, int height, int format,
				       int name, int pitch,
				       void *loaderPrivate);

    __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
					       int renderbuffer,
					       void *loaderPrivate);

    void (*destroyImage)(__DRIimage *image);
848
849
850
851
852
853
854

    __DRIimage *(*createImage)(__DRIscreen *screen,
			       int width, int height, int format,
			       unsigned int use,
			       void *loaderPrivate);

   GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
855
856
857
858
859

   /**
    * The new __DRIimage will share the content with the old one, see dup(2).
    */
   __DRIimage *(*dupImage)(__DRIimage *image, void *loaderPrivate);
860
861
};

862

863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
/**
 * This extension must be implemented by the loader and passed to the
 * driver at screen creation time.  The EGLImage entry points in the
 * various client APIs take opaque EGLImage handles and use this
 * extension to map them to a __DRIimage.  At version 1, this
 * extensions allows mapping EGLImage pointers to __DRIimage pointers,
 * but future versions could support other EGLImage-like, opaque types
 * with new lookup functions.
 */
#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
#define __DRI_IMAGE_LOOKUP_VERSION 1

typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;
struct __DRIimageLookupExtensionRec {
    __DRIextension base;

879
    __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,
880
881
882
				  void *loaderPrivate);
};

883
884
885
886
887
888
889
890
891
892
893
894
895
896
/**
 * This extension allows for common DRI2 options
 */
#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
#define __DRI2_CONFIG_QUERY_VERSION 1

typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;
struct __DRI2configQueryExtensionRec {
   __DRIextension base;

   int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);
   int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);
   int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);
};
897
#endif