2 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2007-2008 Red Hat, Inc.
4 * (C) Copyright IBM Corporation 2004
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
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12 * the Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice (including the next
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23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * \file dri_interface.h
30 * This file contains all the types and functions that define the interface
31 * between a DRI driver and driver loader. Currently, the most common driver
32 * loader is the XFree86 libGL.so. However, other loaders do exist, and in
33 * the future the server-side libglx.a will also be a loader.
35 * \author Kevin E. Martin <kevin@precisioninsight.com>
36 * \author Ian Romanick <idr@us.ibm.com>
37 * \author Kristian Høgsberg <krh@redhat.com>
40 #ifndef DRI_INTERFACE_H
41 #define DRI_INTERFACE_H
43 /* For archs with no drm.h */
44 #if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
45 #ifndef __NOT_HAVE_DRM_H
46 #define __NOT_HAVE_DRM_H
50 #ifndef __NOT_HAVE_DRM_H
53 typedef unsigned int drm_context_t
;
54 typedef unsigned int drm_drawable_t
;
55 typedef struct drm_clip_rect drm_clip_rect_t
;
59 * \name DRI interface structures
61 * The following structures define the interface between the GLX client
62 * side library and the DRI (direct rendering infrastructure).
65 typedef struct __DRIdisplayRec __DRIdisplay
;
66 typedef struct __DRIscreenRec __DRIscreen
;
67 typedef struct __DRIcontextRec __DRIcontext
;
68 typedef struct __DRIdrawableRec __DRIdrawable
;
69 typedef struct __DRIconfigRec __DRIconfig
;
70 typedef struct __DRIframebufferRec __DRIframebuffer
;
71 typedef struct __DRIversionRec __DRIversion
;
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 typedef struct __DRIbufferRec __DRIbuffer
;
84 typedef struct __DRIdri2ExtensionRec __DRIdri2Extension
;
85 typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension
;
86 typedef struct __DRI2flushExtensionRec __DRI2flushExtension
;
87 typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension
;
90 typedef struct __DRIimageLoaderExtensionRec __DRIimageLoaderExtension
;
91 typedef struct __DRIimageDriverExtensionRec __DRIimageDriverExtension
;
97 * Extension struct. Drivers 'inherit' from this struct by embedding
98 * it as the first element in the extension struct.
100 * We never break API in for a DRI extension. If we need to change
101 * the way things work in a non-backwards compatible manner, we
102 * introduce a new extension. During a transition period, we can
103 * leave both the old and the new extension in the driver, which
104 * allows us to move to the new interface without having to update the
105 * loader(s) in lock step.
107 * However, we can add entry points to an extension over time as long
108 * as we don't break the old ones. As we add entry points to an
109 * extension, we increase the version number. The corresponding
110 * #define can be used to guard code that accesses the new entry
111 * points at compile time and the version field in the extension
112 * struct can be used at run-time to determine how to use the
115 struct __DRIextensionRec
{
121 * The first set of extension are the screen extensions, returned by
122 * __DRIcore::getExtensions(). This entry point will return a list of
123 * extensions and the loader can use the ones it knows about by
124 * casting them to more specific extensions and advertising any GLX
125 * extensions the DRI extensions enables.
129 * Used by drivers to indicate support for setting the read drawable.
131 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
132 #define __DRI_READ_DRAWABLE_VERSION 1
135 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
137 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
138 #define __DRI_COPY_SUB_BUFFER_VERSION 1
139 struct __DRIcopySubBufferExtensionRec
{
141 void (*copySubBuffer
)(__DRIdrawable
*drawable
, int x
, int y
, int w
, int h
);
145 * Used by drivers that implement the GLX_SGI_swap_control or
146 * GLX_MESA_swap_control extension.
148 #define __DRI_SWAP_CONTROL "DRI_SwapControl"
149 #define __DRI_SWAP_CONTROL_VERSION 1
150 struct __DRIswapControlExtensionRec
{
152 void (*setSwapInterval
)(__DRIdrawable
*drawable
, unsigned int inteval
);
153 unsigned int (*getSwapInterval
)(__DRIdrawable
*drawable
);
157 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
159 #define __DRI_FRAME_TRACKING "DRI_FrameTracking"
160 #define __DRI_FRAME_TRACKING_VERSION 1
161 struct __DRIframeTrackingExtensionRec
{
165 * Enable or disable frame usage tracking.
167 * \since Internal API version 20030317.
169 int (*frameTracking
)(__DRIdrawable
*drawable
, GLboolean enable
);
172 * Retrieve frame usage information.
174 * \since Internal API version 20030317.
176 int (*queryFrameTracking
)(__DRIdrawable
*drawable
,
177 int64_t * sbc
, int64_t * missedFrames
,
178 float * lastMissedUsage
, float * usage
);
183 * Used by drivers that implement the GLX_SGI_video_sync extension.
185 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
186 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
187 struct __DRImediaStreamCounterExtensionRec
{
191 * Wait for the MSC to equal target_msc, or, if that has already passed,
192 * the next time (MSC % divisor) is equal to remainder. If divisor is
193 * zero, the function will return as soon as MSC is greater than or equal
196 int (*waitForMSC
)(__DRIdrawable
*drawable
,
197 int64_t target_msc
, int64_t divisor
, int64_t remainder
,
198 int64_t * msc
, int64_t * sbc
);
201 * Get the number of vertical refreshes since some point in time before
202 * this function was first called (i.e., system start up).
204 int (*getDrawableMSC
)(__DRIscreen
*screen
, __DRIdrawable
*drawable
,
209 #define __DRI_TEX_OFFSET "DRI_TexOffset"
210 #define __DRI_TEX_OFFSET_VERSION 1
211 struct __DRItexOffsetExtensionRec
{
215 * Method to override base texture image with a driver specific 'offset'.
216 * The depth passed in allows e.g. to ignore the alpha channel of texture
217 * images where the non-alpha components don't occupy a whole texel.
219 * For GLX_EXT_texture_from_pixmap with AIGLX.
221 void (*setTexOffset
)(__DRIcontext
*pDRICtx
, GLint texname
,
222 unsigned long long offset
, GLint depth
, GLuint pitch
);
226 /* Valid values for format in the setTexBuffer2 function below. These
227 * values match the GLX tokens for compatibility reasons, but we
228 * define them here since the DRI interface can't depend on GLX. */
229 #define __DRI_TEXTURE_FORMAT_NONE 0x20D8
230 #define __DRI_TEXTURE_FORMAT_RGB 0x20D9
231 #define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
233 #define __DRI_TEX_BUFFER "DRI_TexBuffer"
234 #define __DRI_TEX_BUFFER_VERSION 3
235 struct __DRItexBufferExtensionRec
{
239 * Method to override base texture image with the contents of a
242 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
243 * setTexBuffer2 in version 2 of this interface
245 void (*setTexBuffer
)(__DRIcontext
*pDRICtx
,
247 __DRIdrawable
*pDraw
);
250 * Method to override base texture image with the contents of a
251 * __DRIdrawable, including the required texture format attribute.
253 * For GLX_EXT_texture_from_pixmap with AIGLX.
257 void (*setTexBuffer2
)(__DRIcontext
*pDRICtx
,
260 __DRIdrawable
*pDraw
);
262 * Method to release texture buffer in case some special platform
265 * For GLX_EXT_texture_from_pixmap with AIGLX.
269 void (*releaseTexBuffer
)(__DRIcontext
*pDRICtx
,
271 __DRIdrawable
*pDraw
);
275 * Used by drivers that implement DRI2
277 #define __DRI2_FLUSH "DRI2_Flush"
278 #define __DRI2_FLUSH_VERSION 4
280 #define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */
281 #define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */
283 enum __DRI2throttleReason
{
284 __DRI2_THROTTLE_SWAPBUFFER
,
285 __DRI2_THROTTLE_COPYSUBBUFFER
,
286 __DRI2_THROTTLE_FLUSHFRONT
289 struct __DRI2flushExtensionRec
{
291 void (*flush
)(__DRIdrawable
*drawable
);
294 * Ask the driver to call getBuffers/getBuffersWithFormat before
295 * it starts rendering again.
297 * \param drawable the drawable to invalidate
301 void (*invalidate
)(__DRIdrawable
*drawable
);
304 * This function reduces the number of flushes in the driver by combining
305 * several operations into one call.
312 * \param context the context
313 * \param drawable the drawable to flush
314 * \param flags a combination of _DRI2_FLUSH_xxx flags
315 * \param throttle_reason the reason for throttling, 0 = no throttling
319 void (*flush_with_flags
)(__DRIcontext
*ctx
,
320 __DRIdrawable
*drawable
,
322 enum __DRI2throttleReason throttle_reason
);
327 * Extension that the driver uses to request
328 * throttle callbacks.
331 #define __DRI2_THROTTLE "DRI2_Throttle"
332 #define __DRI2_THROTTLE_VERSION 1
334 struct __DRI2throttleExtensionRec
{
336 void (*throttle
)(__DRIcontext
*ctx
,
337 __DRIdrawable
*drawable
,
338 enum __DRI2throttleReason reason
);
344 * The following extensions describe loader features that the DRI
345 * driver can make use of. Some of these are mandatory, such as the
346 * getDrawableInfo extension for DRI and the DRI Loader extensions for
347 * DRI2, while others are optional, and if present allow the driver to
348 * expose certain features. The loader pass in a NULL terminated
349 * array of these extensions to the driver in the createNewScreen
353 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension
;
354 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension
;
355 typedef struct __DRIdamageExtensionRec __DRIdamageExtension
;
356 typedef struct __DRIloaderExtensionRec __DRIloaderExtension
;
357 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension
;
361 * Callback to getDrawableInfo protocol
363 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
364 #define __DRI_GET_DRAWABLE_INFO_VERSION 1
365 struct __DRIgetDrawableInfoExtensionRec
{
369 * This function is used to get information about the position, size, and
370 * clip rects of a drawable.
372 GLboolean (* getDrawableInfo
) ( __DRIdrawable
*drawable
,
373 unsigned int * index
, unsigned int * stamp
,
374 int * x
, int * y
, int * width
, int * height
,
375 int * numClipRects
, drm_clip_rect_t
** pClipRects
,
376 int * backX
, int * backY
,
377 int * numBackClipRects
, drm_clip_rect_t
** pBackClipRects
,
378 void *loaderPrivate
);
382 * Callback to get system time for media stream counter extensions.
384 #define __DRI_SYSTEM_TIME "DRI_SystemTime"
385 #define __DRI_SYSTEM_TIME_VERSION 1
386 struct __DRIsystemTimeExtensionRec
{
390 * Get the 64-bit unadjusted system time (UST).
392 int (*getUST
)(int64_t * ust
);
395 * Get the media stream counter (MSC) rate.
397 * Matching the definition in GLX_OML_sync_control, this function returns
398 * the rate of the "media stream counter". In practical terms, this is
399 * the frame refresh rate of the display.
401 GLboolean (*getMSCRate
)(__DRIdrawable
*draw
,
402 int32_t * numerator
, int32_t * denominator
,
403 void *loaderPrivate
);
409 #define __DRI_DAMAGE "DRI_Damage"
410 #define __DRI_DAMAGE_VERSION 1
411 struct __DRIdamageExtensionRec
{
415 * Reports areas of the given drawable which have been modified by the
418 * \param drawable which the drawing was done to.
419 * \param rects rectangles affected, with the drawable origin as the
421 * \param x X offset of the drawable within the screen (used in the
423 * \param y Y offset of the drawable within the screen.
424 * \param front_buffer boolean flag for whether the drawing to the
425 * drawable was actually done directly to the front buffer (instead
426 * of backing storage, for example)
427 * \param loaderPrivate the data passed in at createNewDrawable time
429 void (*reportDamage
)(__DRIdrawable
*draw
,
431 drm_clip_rect_t
*rects
, int num_rects
,
432 GLboolean front_buffer
,
433 void *loaderPrivate
);
436 #define __DRI_SWRAST_IMAGE_OP_DRAW 1
437 #define __DRI_SWRAST_IMAGE_OP_CLEAR 2
438 #define __DRI_SWRAST_IMAGE_OP_SWAP 3
441 * SWRast Loader extension.
443 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
444 #define __DRI_SWRAST_LOADER_VERSION 2
445 struct __DRIswrastLoaderExtensionRec
{
449 * Drawable position and size
451 void (*getDrawableInfo
)(__DRIdrawable
*drawable
,
452 int *x
, int *y
, int *width
, int *height
,
453 void *loaderPrivate
);
456 * Put image to drawable
458 void (*putImage
)(__DRIdrawable
*drawable
, int op
,
459 int x
, int y
, int width
, int height
,
460 char *data
, void *loaderPrivate
);
463 * Get image from readable
465 void (*getImage
)(__DRIdrawable
*readable
,
466 int x
, int y
, int width
, int height
,
467 char *data
, void *loaderPrivate
);
470 * Put image to drawable
474 void (*putImage2
)(__DRIdrawable
*drawable
, int op
,
475 int x
, int y
, int width
, int height
, int stride
,
476 char *data
, void *loaderPrivate
);
480 * Invalidate loader extension. The presence of this extension
481 * indicates to the DRI driver that the loader will call invalidate in
482 * the __DRI2_FLUSH extension, whenever the needs to query for new
483 * buffers. This means that the DRI driver can drop the polling in
486 * The extension doesn't provide any functionality, it's only use to
487 * indicate to the driver that it can use the new semantics. A DRI
488 * driver can use this to switch between the different semantics or
489 * just refuse to initialize if this extension isn't present.
491 #define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
492 #define __DRI_USE_INVALIDATE_VERSION 1
494 typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension
;
495 struct __DRIuseInvalidateExtensionRec
{
500 * The remaining extensions describe driver extensions, immediately
501 * available interfaces provided by the driver. To start using the
502 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
503 * the extension you need in the array.
505 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
508 * This symbol replaces the __DRI_DRIVER_EXTENSIONS symbol, and will be
509 * suffixed by "_drivername", allowing multiple drivers to be built into one
510 * library, and also giving the driver the chance to return a variable driver
511 * extensions struct depending on the driver name being loaded or any other
514 * The function prototype is:
516 * const __DRIextension **__driDriverGetExtensions_drivername(void);
518 #define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions"
521 * Tokens for __DRIconfig attribs. A number of attributes defined by
522 * GLX or EGL standards are not in the table, as they must be provided
523 * by the loader. For example, FBConfig ID or visual ID, drawable type.
526 #define __DRI_ATTRIB_BUFFER_SIZE 1
527 #define __DRI_ATTRIB_LEVEL 2
528 #define __DRI_ATTRIB_RED_SIZE 3
529 #define __DRI_ATTRIB_GREEN_SIZE 4
530 #define __DRI_ATTRIB_BLUE_SIZE 5
531 #define __DRI_ATTRIB_LUMINANCE_SIZE 6
532 #define __DRI_ATTRIB_ALPHA_SIZE 7
533 #define __DRI_ATTRIB_ALPHA_MASK_SIZE 8
534 #define __DRI_ATTRIB_DEPTH_SIZE 9
535 #define __DRI_ATTRIB_STENCIL_SIZE 10
536 #define __DRI_ATTRIB_ACCUM_RED_SIZE 11
537 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12
538 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13
539 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14
540 #define __DRI_ATTRIB_SAMPLE_BUFFERS 15
541 #define __DRI_ATTRIB_SAMPLES 16
542 #define __DRI_ATTRIB_RENDER_TYPE 17
543 #define __DRI_ATTRIB_CONFIG_CAVEAT 18
544 #define __DRI_ATTRIB_CONFORMANT 19
545 #define __DRI_ATTRIB_DOUBLE_BUFFER 20
546 #define __DRI_ATTRIB_STEREO 21
547 #define __DRI_ATTRIB_AUX_BUFFERS 22
548 #define __DRI_ATTRIB_TRANSPARENT_TYPE 23
549 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24
550 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25
551 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26
552 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27
553 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28
554 #define __DRI_ATTRIB_FLOAT_MODE 29
555 #define __DRI_ATTRIB_RED_MASK 30
556 #define __DRI_ATTRIB_GREEN_MASK 31
557 #define __DRI_ATTRIB_BLUE_MASK 32
558 #define __DRI_ATTRIB_ALPHA_MASK 33
559 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34
560 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35
561 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36
562 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37
563 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38
564 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39
565 #define __DRI_ATTRIB_SWAP_METHOD 40
566 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41
567 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42
568 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43
569 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44
570 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45
571 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
572 #define __DRI_ATTRIB_YINVERTED 47
573 #define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
575 /* __DRI_ATTRIB_RENDER_TYPE */
576 #define __DRI_ATTRIB_RGBA_BIT 0x01
577 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
578 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04
579 #define __DRI_ATTRIB_FLOAT_BIT 0x08
580 #define __DRI_ATTRIB_UNSIGNED_FLOAT_BIT 0x10
582 /* __DRI_ATTRIB_CONFIG_CAVEAT */
583 #define __DRI_ATTRIB_SLOW_BIT 0x01
584 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02
586 /* __DRI_ATTRIB_TRANSPARENT_TYPE */
587 #define __DRI_ATTRIB_TRANSPARENT_RGB 0x00
588 #define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01
590 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
591 #define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01
592 #define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
593 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
596 * This extension defines the core DRI functionality.
598 #define __DRI_CORE "DRI_Core"
599 #define __DRI_CORE_VERSION 1
601 struct __DRIcoreExtensionRec
{
604 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
605 unsigned int sarea_handle
,
606 const __DRIextension
**extensions
,
607 const __DRIconfig
***driverConfigs
,
608 void *loaderPrivate
);
610 void (*destroyScreen
)(__DRIscreen
*screen
);
612 const __DRIextension
**(*getExtensions
)(__DRIscreen
*screen
);
614 int (*getConfigAttrib
)(const __DRIconfig
*config
,
616 unsigned int *value
);
618 int (*indexConfigAttrib
)(const __DRIconfig
*config
, int index
,
619 unsigned int *attrib
, unsigned int *value
);
621 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
622 const __DRIconfig
*config
,
623 unsigned int drawable_id
,
625 void *loaderPrivate
);
627 void (*destroyDrawable
)(__DRIdrawable
*drawable
);
629 void (*swapBuffers
)(__DRIdrawable
*drawable
);
631 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
632 const __DRIconfig
*config
,
633 __DRIcontext
*shared
,
634 void *loaderPrivate
);
636 int (*copyContext
)(__DRIcontext
*dest
,
640 void (*destroyContext
)(__DRIcontext
*context
);
642 int (*bindContext
)(__DRIcontext
*ctx
,
643 __DRIdrawable
*pdraw
,
644 __DRIdrawable
*pread
);
646 int (*unbindContext
)(__DRIcontext
*ctx
);
650 * Stored version of some component (i.e., server-side DRI module, kernel-side
654 * There are several data structures that explicitly store a major version,
655 * minor version, and patch level. These structures should be modified to
656 * have a \c __DRIversionRec instead.
658 struct __DRIversionRec
{
659 int major
; /**< Major version number. */
660 int minor
; /**< Minor version number. */
661 int patch
; /**< Patch-level. */
665 * Framebuffer information record. Used by libGL to communicate information
666 * about the framebuffer to the driver's \c __driCreateNewScreen function.
668 * In XFree86, most of this information is derrived from data returned by
669 * calling \c XF86DRIGetDeviceInfo.
671 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
672 * __driUtilCreateNewScreen CallCreateNewScreen
674 * \bug This structure could be better named.
676 struct __DRIframebufferRec
{
677 unsigned char *base
; /**< Framebuffer base address in the CPU's
678 * address space. This value is calculated by
679 * calling \c drmMap on the framebuffer handle
680 * returned by \c XF86DRIGetDeviceInfo (or a
683 int size
; /**< Framebuffer size, in bytes. */
684 int stride
; /**< Number of bytes from one line to the next. */
685 int width
; /**< Pixel width of the framebuffer. */
686 int height
; /**< Pixel height of the framebuffer. */
687 int dev_priv_size
; /**< Size of the driver's dev-priv structure. */
688 void *dev_priv
; /**< Pointer to the driver's dev-priv structure. */
693 * This extension provides alternative screen, drawable and context
694 * constructors for legacy DRI functionality. This is used in
695 * conjunction with the core extension.
697 #define __DRI_LEGACY "DRI_Legacy"
698 #define __DRI_LEGACY_VERSION 1
700 struct __DRIlegacyExtensionRec
{
703 __DRIscreen
*(*createNewScreen
)(int screen
,
704 const __DRIversion
*ddx_version
,
705 const __DRIversion
*dri_version
,
706 const __DRIversion
*drm_version
,
707 const __DRIframebuffer
*frame_buffer
,
708 void *pSAREA
, int fd
,
709 const __DRIextension
**extensions
,
710 const __DRIconfig
***driver_configs
,
711 void *loaderPrivate
);
713 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
714 const __DRIconfig
*config
,
715 drm_drawable_t hwDrawable
,
716 int renderType
, const int *attrs
,
717 void *loaderPrivate
);
719 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
720 const __DRIconfig
*config
,
722 __DRIcontext
*shared
,
723 drm_context_t hwContext
,
724 void *loaderPrivate
);
728 * This extension provides alternative screen, drawable and context
729 * constructors for swrast DRI functionality. This is used in
730 * conjunction with the core extension.
732 #define __DRI_SWRAST "DRI_SWRast"
733 #define __DRI_SWRAST_VERSION 4
735 struct __DRIswrastExtensionRec
{
738 __DRIscreen
*(*createNewScreen
)(int screen
,
739 const __DRIextension
**extensions
,
740 const __DRIconfig
***driver_configs
,
741 void *loaderPrivate
);
743 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
744 const __DRIconfig
*config
,
745 void *loaderPrivate
);
747 /* Since version 2 */
748 __DRIcontext
*(*createNewContextForAPI
)(__DRIscreen
*screen
,
750 const __DRIconfig
*config
,
751 __DRIcontext
*shared
,
755 * Create a context for a particular API with a set of attributes
759 * \sa __DRIdri2ExtensionRec::createContextAttribs
761 __DRIcontext
*(*createContextAttribs
)(__DRIscreen
*screen
,
763 const __DRIconfig
*config
,
764 __DRIcontext
*shared
,
765 unsigned num_attribs
,
766 const uint32_t *attribs
,
768 void *loaderPrivate
);
771 * createNewScreen() with the driver extensions passed in.
775 __DRIscreen
*(*createNewScreen2
)(int screen
,
776 const __DRIextension
**loader_extensions
,
777 const __DRIextension
**driver_extensions
,
778 const __DRIconfig
***driver_configs
,
779 void *loaderPrivate
);
783 /** Common DRI function definitions, shared among DRI2 and Image extensions
786 typedef __DRIscreen
*
787 (*__DRIcreateNewScreen2Func
)(int screen
, int fd
,
788 const __DRIextension
**extensions
,
789 const __DRIextension
**driver_extensions
,
790 const __DRIconfig
***driver_configs
,
791 void *loaderPrivate
);
793 typedef __DRIdrawable
*
794 (*__DRIcreateNewDrawableFunc
)(__DRIscreen
*screen
,
795 const __DRIconfig
*config
,
796 void *loaderPrivate
);
798 typedef __DRIcontext
*
799 (*__DRIcreateContextAttribsFunc
)(__DRIscreen
*screen
,
801 const __DRIconfig
*config
,
802 __DRIcontext
*shared
,
803 unsigned num_attribs
,
804 const uint32_t *attribs
,
806 void *loaderPrivate
);
809 (*__DRIgetAPIMaskFunc
)(__DRIscreen
*screen
);
812 * DRI2 Loader extension.
814 #define __DRI_BUFFER_FRONT_LEFT 0
815 #define __DRI_BUFFER_BACK_LEFT 1
816 #define __DRI_BUFFER_FRONT_RIGHT 2
817 #define __DRI_BUFFER_BACK_RIGHT 3
818 #define __DRI_BUFFER_DEPTH 4
819 #define __DRI_BUFFER_STENCIL 5
820 #define __DRI_BUFFER_ACCUM 6
821 #define __DRI_BUFFER_FAKE_FRONT_LEFT 7
822 #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
823 #define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
824 #define __DRI_BUFFER_HIZ 10
826 /* Inofficial and for internal use. Increase when adding a new buffer token. */
827 #define __DRI_BUFFER_COUNT 11
829 struct __DRIbufferRec
{
830 unsigned int attachment
;
837 #define __DRI_DRI2_LOADER "DRI_DRI2Loader"
838 #define __DRI_DRI2_LOADER_VERSION 3
839 struct __DRIdri2LoaderExtensionRec
{
842 __DRIbuffer
*(*getBuffers
)(__DRIdrawable
*driDrawable
,
843 int *width
, int *height
,
844 unsigned int *attachments
, int count
,
845 int *out_count
, void *loaderPrivate
);
848 * Flush pending front-buffer rendering
850 * Any rendering that has been performed to the
851 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
852 * \c __DRI_BUFFER_FRONT_LEFT.
854 * \param driDrawable Drawable whose front-buffer is to be flushed
855 * \param loaderPrivate Loader's private data that was previously passed
856 * into __DRIdri2ExtensionRec::createNewDrawable
860 void (*flushFrontBuffer
)(__DRIdrawable
*driDrawable
, void *loaderPrivate
);
864 * Get list of buffers from the server
866 * Gets a list of buffer for the specified set of attachments. Unlike
867 * \c ::getBuffers, this function takes a list of attachments paired with
868 * opaque \c unsigned \c int value describing the format of the buffer.
869 * It is the responsibility of the caller to know what the service that
870 * allocates the buffers will expect to receive for the format.
872 * \param driDrawable Drawable whose buffers are being queried.
873 * \param width Output where the width of the buffers is stored.
874 * \param height Output where the height of the buffers is stored.
875 * \param attachments List of pairs of attachment ID and opaque format
876 * requested for the drawable.
877 * \param count Number of attachment / format pairs stored in
879 * \param loaderPrivate Loader's private data that was previously passed
880 * into __DRIdri2ExtensionRec::createNewDrawable.
884 __DRIbuffer
*(*getBuffersWithFormat
)(__DRIdrawable
*driDrawable
,
885 int *width
, int *height
,
886 unsigned int *attachments
, int count
,
887 int *out_count
, void *loaderPrivate
);
891 * This extension provides alternative screen, drawable and context
892 * constructors for DRI2.
894 #define __DRI_DRI2 "DRI_DRI2"
895 #define __DRI_DRI2_VERSION 4
897 #define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */
898 #define __DRI_API_GLES 1 /**< OpenGL ES 1.x */
899 #define __DRI_API_GLES2 2 /**< OpenGL ES 2.x */
900 #define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */
901 #define __DRI_API_GLES3 4 /**< OpenGL ES 3.x */
903 #define __DRI_CTX_ATTRIB_MAJOR_VERSION 0
904 #define __DRI_CTX_ATTRIB_MINOR_VERSION 1
905 #define __DRI_CTX_ATTRIB_FLAGS 2
908 * \requires __DRI2_ROBUSTNESS.
910 #define __DRI_CTX_ATTRIB_RESET_STRATEGY 3
912 #define __DRI_CTX_FLAG_DEBUG 0x00000001
913 #define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002
916 * \requires __DRI2_ROBUSTNESS.
918 #define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004
921 * \name Context reset strategies.
924 #define __DRI_CTX_RESET_NO_NOTIFICATION 0
925 #define __DRI_CTX_RESET_LOSE_CONTEXT 1
929 * \name Reasons that __DRIdri2Extension::createContextAttribs might fail
933 #define __DRI_CTX_ERROR_SUCCESS 0
935 /** Memory allocation failure */
936 #define __DRI_CTX_ERROR_NO_MEMORY 1
938 /** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */
939 #define __DRI_CTX_ERROR_BAD_API 2
941 /** Client requested an API version that the driver can't do. */
942 #define __DRI_CTX_ERROR_BAD_VERSION 3
944 /** Client requested a flag or combination of flags the driver can't do. */
945 #define __DRI_CTX_ERROR_BAD_FLAG 4
947 /** Client requested an attribute the driver doesn't understand. */
948 #define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5
950 /** Client requested a flag the driver doesn't understand. */
951 #define __DRI_CTX_ERROR_UNKNOWN_FLAG 6
954 struct __DRIdri2ExtensionRec
{
957 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
958 const __DRIextension
**extensions
,
959 const __DRIconfig
***driver_configs
,
960 void *loaderPrivate
);
962 __DRIcreateNewDrawableFunc createNewDrawable
;
963 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
964 const __DRIconfig
*config
,
965 __DRIcontext
*shared
,
966 void *loaderPrivate
);
968 /* Since version 2 */
969 __DRIgetAPIMaskFunc getAPIMask
;
971 __DRIcontext
*(*createNewContextForAPI
)(__DRIscreen
*screen
,
973 const __DRIconfig
*config
,
974 __DRIcontext
*shared
,
977 __DRIbuffer
*(*allocateBuffer
)(__DRIscreen
*screen
,
978 unsigned int attachment
,
982 void (*releaseBuffer
)(__DRIscreen
*screen
,
983 __DRIbuffer
*buffer
);
986 * Create a context for a particular API with a set of attributes
990 * \sa __DRIswrastExtensionRec::createContextAttribs
992 __DRIcreateContextAttribsFunc createContextAttribs
;
995 * createNewScreen with the driver's extension list passed in.
999 __DRIcreateNewScreen2Func createNewScreen2
;
1004 * This extension provides functionality to enable various EGLImage
1007 #define __DRI_IMAGE "DRI_IMAGE"
1008 #define __DRI_IMAGE_VERSION 10
1011 * These formats correspond to the similarly named MESA_FORMAT_*
1012 * tokens, except in the native endian of the CPU. For example, on
1013 * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
1014 * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
1016 * __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable
1017 * by the driver (YUV planar formats) but serve as a base image for
1018 * creating sub-images for the different planes within the image.
1020 * R8, GR88 and NONE should not be used with createImageFormName or
1021 * createImage, and are returned by query from sub images created with
1022 * createImageFromNames (NONE, see above) and fromPlane (R8 & GR88).
1024 #define __DRI_IMAGE_FORMAT_RGB565 0x1001
1025 #define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
1026 #define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
1027 #define __DRI_IMAGE_FORMAT_ABGR8888 0x1004
1028 #define __DRI_IMAGE_FORMAT_XBGR8888 0x1005
1029 #define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */
1030 #define __DRI_IMAGE_FORMAT_GR88 0x1007
1031 #define __DRI_IMAGE_FORMAT_NONE 0x1008
1032 #define __DRI_IMAGE_FORMAT_XRGB2101010 0x1009
1033 #define __DRI_IMAGE_FORMAT_ARGB2101010 0x100a
1034 #define __DRI_IMAGE_FORMAT_SARGB8 0x100b
1036 #define __DRI_IMAGE_USE_SHARE 0x0001
1037 #define __DRI_IMAGE_USE_SCANOUT 0x0002
1038 #define __DRI_IMAGE_USE_CURSOR 0x0004 /* Depricated */
1039 #define __DRI_IMAGE_USE_LINEAR 0x0008
1043 * Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h
1044 * and GBM_FORMAT_* from gbm.h, used with createImageFromNames.
1049 #define __DRI_IMAGE_FOURCC_RGB565 0x36314752
1050 #define __DRI_IMAGE_FOURCC_ARGB8888 0x34325241
1051 #define __DRI_IMAGE_FOURCC_XRGB8888 0x34325258
1052 #define __DRI_IMAGE_FOURCC_ABGR8888 0x34324241
1053 #define __DRI_IMAGE_FOURCC_XBGR8888 0x34324258
1054 #define __DRI_IMAGE_FOURCC_SARGB8888 0x83324258
1055 #define __DRI_IMAGE_FOURCC_YUV410 0x39565559
1056 #define __DRI_IMAGE_FOURCC_YUV411 0x31315559
1057 #define __DRI_IMAGE_FOURCC_YUV420 0x32315559
1058 #define __DRI_IMAGE_FOURCC_YUV422 0x36315559
1059 #define __DRI_IMAGE_FOURCC_YUV444 0x34325559
1060 #define __DRI_IMAGE_FOURCC_NV12 0x3231564e
1061 #define __DRI_IMAGE_FOURCC_NV16 0x3631564e
1062 #define __DRI_IMAGE_FOURCC_YUYV 0x56595559
1066 * Queryable on images created by createImageFromNames.
1068 * RGB and RGBA are may be usable directly as images but its still
1069 * recommended to call fromPlanar with plane == 0.
1071 * Y_U_V, Y_UV and Y_XUXV all requires call to fromPlanar to create
1072 * usable sub-images, sampling from images return raw YUV data and
1073 * color conversion needs to be done in the shader.
1078 #define __DRI_IMAGE_COMPONENTS_RGB 0x3001
1079 #define __DRI_IMAGE_COMPONENTS_RGBA 0x3002
1080 #define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003
1081 #define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004
1082 #define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005
1086 * queryImage attributes
1089 #define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
1090 #define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
1091 #define __DRI_IMAGE_ATTRIB_NAME 0x2002
1092 #define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */
1093 #define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */
1094 #define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005
1095 #define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */
1096 #define __DRI_IMAGE_ATTRIB_FD 0x2007 /* available in versions
1097 * 7+. Each query will return a
1100 enum __DRIYUVColorSpace
{
1101 __DRI_YUV_COLOR_SPACE_UNDEFINED
= 0,
1102 __DRI_YUV_COLOR_SPACE_ITU_REC601
= 0x327F,
1103 __DRI_YUV_COLOR_SPACE_ITU_REC709
= 0x3280,
1104 __DRI_YUV_COLOR_SPACE_ITU_REC2020
= 0x3281
1107 enum __DRISampleRange
{
1108 __DRI_YUV_RANGE_UNDEFINED
= 0,
1109 __DRI_YUV_FULL_RANGE
= 0x3282,
1110 __DRI_YUV_NARROW_RANGE
= 0x3283
1113 enum __DRIChromaSiting
{
1114 __DRI_YUV_CHROMA_SITING_UNDEFINED
= 0,
1115 __DRI_YUV_CHROMA_SITING_0
= 0x3284,
1116 __DRI_YUV_CHROMA_SITING_0_5
= 0x3285
1120 * \name Reasons that __DRIimageExtensionRec::createImageFromTexture might fail
1124 #define __DRI_IMAGE_ERROR_SUCCESS 0
1126 /** Memory allocation failure */
1127 #define __DRI_IMAGE_ERROR_BAD_ALLOC 1
1129 /** Client requested an invalid attribute for a texture object */
1130 #define __DRI_IMAGE_ERROR_BAD_MATCH 2
1132 /** Client requested an invalid texture object */
1133 #define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
1137 * \name Capabilities that might be returned by __DRIimageExtensionRec::getCapabilities
1140 #define __DRI_IMAGE_CAP_GLOBAL_NAMES 1
1147 #define __BLIT_FLAG_FLUSH 0x0001
1148 #define __BLIT_FLAG_FINISH 0x0002
1150 typedef struct __DRIimageRec __DRIimage
;
1151 typedef struct __DRIimageExtensionRec __DRIimageExtension
;
1152 struct __DRIimageExtensionRec
{
1153 __DRIextension base
;
1155 __DRIimage
*(*createImageFromName
)(__DRIscreen
*screen
,
1156 int width
, int height
, int format
,
1157 int name
, int pitch
,
1158 void *loaderPrivate
);
1160 __DRIimage
*(*createImageFromRenderbuffer
)(__DRIcontext
*context
,
1162 void *loaderPrivate
);
1164 void (*destroyImage
)(__DRIimage
*image
);
1166 __DRIimage
*(*createImage
)(__DRIscreen
*screen
,
1167 int width
, int height
, int format
,
1169 void *loaderPrivate
);
1171 GLboolean (*queryImage
)(__DRIimage
*image
, int attrib
, int *value
);
1174 * The new __DRIimage will share the content with the old one, see dup(2).
1176 __DRIimage
*(*dupImage
)(__DRIimage
*image
, void *loaderPrivate
);
1179 * Validate that a __DRIimage can be used a certain way.
1183 GLboolean (*validateUsage
)(__DRIimage
*image
, unsigned int use
);
1186 * Unlike createImageFromName __DRI_IMAGE_FORMAT is not but instead
1187 * __DRI_IMAGE_FOURCC and strides are in bytes not pixels. Stride is
1188 * also per block and not per pixel (for non-RGB, see gallium blocks).
1192 __DRIimage
*(*createImageFromNames
)(__DRIscreen
*screen
,
1193 int width
, int height
, int fourcc
,
1194 int *names
, int num_names
,
1195 int *strides
, int *offsets
,
1196 void *loaderPrivate
);
1199 * Create an image out of a sub-region of a parent image. This
1200 * entry point lets us create individual __DRIimages for different
1201 * planes in a planar buffer (typically yuv), for example. While a
1202 * sub-image shares the underlying buffer object with the parent
1203 * image and other sibling sub-images, the life times of parent and
1204 * sub-images are not dependent. Destroying the parent or a
1205 * sub-image doesn't affect other images. The underlying buffer
1206 * object is free when no __DRIimage remains that references it.
1208 * Sub-images may overlap, but rendering to overlapping sub-images
1213 __DRIimage
*(*fromPlanar
)(__DRIimage
*image
, int plane
,
1214 void *loaderPrivate
);
1217 * Create image from texture.
1221 __DRIimage
*(*createImageFromTexture
)(__DRIcontext
*context
,
1227 void *loaderPrivate
);
1229 * Like createImageFromNames, but takes a prime fd instead.
1233 __DRIimage
*(*createImageFromFds
)(__DRIscreen
*screen
,
1234 int width
, int height
, int fourcc
,
1235 int *fds
, int num_fds
,
1236 int *strides
, int *offsets
,
1237 void *loaderPrivate
);
1240 * Like createImageFromFds, but takes additional attributes.
1242 * For EGL_EXT_image_dma_buf_import.
1246 __DRIimage
*(*createImageFromDmaBufs
)(__DRIscreen
*screen
,
1247 int width
, int height
, int fourcc
,
1248 int *fds
, int num_fds
,
1249 int *strides
, int *offsets
,
1250 enum __DRIYUVColorSpace color_space
,
1251 enum __DRISampleRange sample_range
,
1252 enum __DRIChromaSiting horiz_siting
,
1253 enum __DRIChromaSiting vert_siting
,
1255 void *loaderPrivate
);
1258 * Blit a part of a __DRIimage to another and flushes
1262 * __BLIT_FLAG_FLUSH: flush after the blit operation
1263 * __BLIT_FLAG_FINISH: flush and wait the blit finished
1267 void (*blitImage
)(__DRIcontext
*context
, __DRIimage
*dst
, __DRIimage
*src
,
1268 int dstx0
, int dsty0
, int dstwidth
, int dstheight
,
1269 int srcx0
, int srcy0
, int srcwidth
, int srcheight
,
1273 * Query for general capabilities of the driver that concern
1274 * buffer sharing and image importing.
1278 int (*getCapabilities
)(__DRIscreen
*screen
);
1283 * This extension must be implemented by the loader and passed to the
1284 * driver at screen creation time. The EGLImage entry points in the
1285 * various client APIs take opaque EGLImage handles and use this
1286 * extension to map them to a __DRIimage. At version 1, this
1287 * extensions allows mapping EGLImage pointers to __DRIimage pointers,
1288 * but future versions could support other EGLImage-like, opaque types
1289 * with new lookup functions.
1291 #define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
1292 #define __DRI_IMAGE_LOOKUP_VERSION 1
1294 typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension
;
1295 struct __DRIimageLookupExtensionRec
{
1296 __DRIextension base
;
1298 __DRIimage
*(*lookupEGLImage
)(__DRIscreen
*screen
, void *image
,
1299 void *loaderPrivate
);
1303 * This extension allows for common DRI2 options
1305 #define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
1306 #define __DRI2_CONFIG_QUERY_VERSION 1
1308 typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension
;
1309 struct __DRI2configQueryExtensionRec
{
1310 __DRIextension base
;
1312 int (*configQueryb
)(__DRIscreen
*screen
, const char *var
, unsigned char *val
);
1313 int (*configQueryi
)(__DRIscreen
*screen
, const char *var
, int *val
);
1314 int (*configQueryf
)(__DRIscreen
*screen
, const char *var
, float *val
);
1318 * Robust context driver extension.
1320 * Existence of this extension means the driver can accept the
1321 * \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
1322 * \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in
1323 * \c __DRIdri2ExtensionRec::createContextAttribs.
1325 #define __DRI2_ROBUSTNESS "DRI_Robustness"
1326 #define __DRI2_ROBUSTNESS_VERSION 1
1328 typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension
;
1329 struct __DRIrobustnessExtensionRec
{
1330 __DRIextension base
;
1334 * DRI config options extension.
1336 * This extension provides the XML string containing driver options for use by
1337 * the loader in supporting the driconf application.
1339 #define __DRI_CONFIG_OPTIONS "DRI_ConfigOptions"
1340 #define __DRI_CONFIG_OPTIONS_VERSION 1
1342 typedef struct __DRIconfigOptionsExtensionRec
{
1343 __DRIextension base
;
1345 } __DRIconfigOptionsExtension
;
1348 * This extension provides a driver vtable to a set of common driver helper
1349 * functions (driCoreExtension, driDRI2Extension) within the driver
1350 * implementation, as opposed to having to pass them through a global
1353 * It is not intended to be public API to the actual loader, and the vtable
1354 * layout may change at any time.
1356 #define __DRI_DRIVER_VTABLE "DRI_DriverVtable"
1357 #define __DRI_DRIVER_VTABLE_VERSION 1
1359 typedef struct __DRIDriverVtableExtensionRec
{
1360 __DRIextension base
;
1361 const struct __DriverAPIRec
*vtable
;
1362 } __DRIDriverVtableExtension
;
1365 * Query renderer driver extension
1367 * This allows the window system layer (either EGL or GLX) to query aspects of
1368 * hardware and driver support without creating a context.
1370 #define __DRI2_RENDERER_QUERY "DRI_RENDERER_QUERY"
1371 #define __DRI2_RENDERER_QUERY_VERSION 1
1373 #define __DRI2_RENDERER_VENDOR_ID 0x0000
1374 #define __DRI2_RENDERER_DEVICE_ID 0x0001
1375 #define __DRI2_RENDERER_VERSION 0x0002
1376 #define __DRI2_RENDERER_ACCELERATED 0x0003
1377 #define __DRI2_RENDERER_VIDEO_MEMORY 0x0004
1378 #define __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE 0x0005
1379 #define __DRI2_RENDERER_PREFERRED_PROFILE 0x0006
1380 #define __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION 0x0007
1381 #define __DRI2_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION 0x0008
1382 #define __DRI2_RENDERER_OPENGL_ES_PROFILE_VERSION 0x0009
1383 #define __DRI2_RENDERER_OPENGL_ES2_PROFILE_VERSION 0x000a
1385 typedef struct __DRI2rendererQueryExtensionRec __DRI2rendererQueryExtension
;
1386 struct __DRI2rendererQueryExtensionRec
{
1387 __DRIextension base
;
1389 int (*queryInteger
)(__DRIscreen
*screen
, int attribute
, unsigned int *val
);
1390 int (*queryString
)(__DRIscreen
*screen
, int attribute
, const char **val
);
1394 * Image Loader extension. Drivers use this to allocate color buffers
1397 enum __DRIimageBufferMask
{
1398 __DRI_IMAGE_BUFFER_BACK
= (1 << 0),
1399 __DRI_IMAGE_BUFFER_FRONT
= (1 << 1)
1402 struct __DRIimageList
{
1403 uint32_t image_mask
;
1408 #define __DRI_IMAGE_LOADER "DRI_IMAGE_LOADER"
1409 #define __DRI_IMAGE_LOADER_VERSION 1
1411 struct __DRIimageLoaderExtensionRec
{
1412 __DRIextension base
;
1415 * Allocate color buffers.
1417 * \param driDrawable
1418 * \param width Width of allocated buffers
1419 * \param height Height of allocated buffers
1420 * \param format one of __DRI_IMAGE_FORMAT_*
1421 * \param stamp Address of variable to be updated when
1422 * getBuffers must be called again
1423 * \param loaderPrivate The loaderPrivate for driDrawable
1424 * \param buffer_mask Set of buffers to allocate
1425 * \param buffers Returned buffers
1427 int (*getBuffers
)(__DRIdrawable
*driDrawable
,
1428 unsigned int format
,
1430 void *loaderPrivate
,
1431 uint32_t buffer_mask
,
1432 struct __DRIimageList
*buffers
);
1435 * Flush pending front-buffer rendering
1437 * Any rendering that has been performed to the
1438 * fake front will be flushed to the front
1440 * \param driDrawable Drawable whose front-buffer is to be flushed
1441 * \param loaderPrivate Loader's private data that was previously passed
1442 * into __DRIdri2ExtensionRec::createNewDrawable
1444 void (*flushFrontBuffer
)(__DRIdrawable
*driDrawable
, void *loaderPrivate
);
1451 #define __DRI_IMAGE_DRIVER "DRI_IMAGE_DRIVER"
1452 #define __DRI_IMAGE_DRIVER_VERSION 1
1454 struct __DRIimageDriverExtensionRec
{
1455 __DRIextension base
;
1457 /* Common DRI functions, shared with DRI2 */
1458 __DRIcreateNewScreen2Func createNewScreen2
;
1459 __DRIcreateNewDrawableFunc createNewDrawable
;
1460 __DRIcreateContextAttribsFunc createContextAttribs
;
1461 __DRIgetAPIMaskFunc getAPIMask
;