2 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2007-2008 Red Hat, Inc.
4 * (C) Copyright IBM Corporation 2004
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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 __DRIallocateExtensionRec __DRIallocateExtension;
78 typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension;
79 typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension;
80 typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension;
81 typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension;
82 typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension;
83 typedef struct __DRIswrastExtensionRec __DRIswrastExtension;
84 typedef struct __DRIbufferRec __DRIbuffer;
85 typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
86 typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
87 typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
93 * Extension struct. Drivers 'inherit' from this struct by embedding
94 * it as the first element in the extension struct.
96 * We never break API in for a DRI extension. If we need to change
97 * the way things work in a non-backwards compatible manner, we
98 * introduce a new extension. During a transition period, we can
99 * leave both the old and the new extension in the driver, which
100 * allows us to move to the new interface without having to update the
101 * loader(s) in lock step.
103 * However, we can add entry points to an extension over time as long
104 * as we don't break the old ones. As we add entry points to an
105 * extension, we increase the version number. The corresponding
106 * #define can be used to guard code that accesses the new entry
107 * points at compile time and the version field in the extension
108 * struct can be used at run-time to determine how to use the
111 struct __DRIextensionRec {
117 * The first set of extension are the screen extensions, returned by
118 * __DRIcore::getExtensions(). This entry point will return a list of
119 * extensions and the loader can use the ones it knows about by
120 * casting them to more specific extensions and advertising any GLX
121 * extensions the DRI extensions enables.
125 * Used by drivers to indicate support for setting the read drawable.
127 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
128 #define __DRI_READ_DRAWABLE_VERSION 1
131 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
133 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
134 #define __DRI_COPY_SUB_BUFFER_VERSION 1
135 struct __DRIcopySubBufferExtensionRec {
137 void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
141 * Used by drivers that implement the GLX_SGI_swap_control or
142 * GLX_MESA_swap_control extension.
144 #define __DRI_SWAP_CONTROL "DRI_SwapControl"
145 #define __DRI_SWAP_CONTROL_VERSION 1
146 struct __DRIswapControlExtensionRec {
148 void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
149 unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
153 * Used by drivers that implement the GLX_MESA_allocate_memory.
155 #define __DRI_ALLOCATE "DRI_Allocate"
156 #define __DRI_ALLOCATE_VERSION 1
157 struct __DRIallocateExtensionRec {
160 void *(*allocateMemory)(__DRIscreen *screen, GLsizei size,
161 GLfloat readfreq, GLfloat writefreq,
164 void (*freeMemory)(__DRIscreen *screen, GLvoid *pointer);
166 GLuint (*memoryOffset)(__DRIscreen *screen, const GLvoid *pointer);
170 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
172 #define __DRI_FRAME_TRACKING "DRI_FrameTracking"
173 #define __DRI_FRAME_TRACKING_VERSION 1
174 struct __DRIframeTrackingExtensionRec {
178 * Enable or disable frame usage tracking.
180 * \since Internal API version 20030317.
182 int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);
185 * Retrieve frame usage information.
187 * \since Internal API version 20030317.
189 int (*queryFrameTracking)(__DRIdrawable *drawable,
190 int64_t * sbc, int64_t * missedFrames,
191 float * lastMissedUsage, float * usage);
196 * Used by drivers that implement the GLX_SGI_video_sync extension.
198 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
199 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
200 struct __DRImediaStreamCounterExtensionRec {
204 * Wait for the MSC to equal target_msc, or, if that has already passed,
205 * the next time (MSC % divisor) is equal to remainder. If divisor is
206 * zero, the function will return as soon as MSC is greater than or equal
209 int (*waitForMSC)(__DRIdrawable *drawable,
210 int64_t target_msc, int64_t divisor, int64_t remainder,
211 int64_t * msc, int64_t * sbc);
214 * Get the number of vertical refreshes since some point in time before
215 * this function was first called (i.e., system start up).
217 int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
222 #define __DRI_TEX_OFFSET "DRI_TexOffset"
223 #define __DRI_TEX_OFFSET_VERSION 1
224 struct __DRItexOffsetExtensionRec {
228 * Method to override base texture image with a driver specific 'offset'.
229 * The depth passed in allows e.g. to ignore the alpha channel of texture
230 * images where the non-alpha components don't occupy a whole texel.
232 * For GLX_EXT_texture_from_pixmap with AIGLX.
234 void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
235 unsigned long long offset, GLint depth, GLuint pitch);
239 /* Valid values for format in the setTexBuffer2 function below. These
240 * values match the GLX tokens for compatibility reasons, but we
241 * define them here since the DRI interface can't depend on GLX. */
242 #define __DRI_TEXTURE_FORMAT_NONE 0x20D8
243 #define __DRI_TEXTURE_FORMAT_RGB 0x20D9
244 #define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
246 #define __DRI_TEX_BUFFER "DRI_TexBuffer"
247 #define __DRI_TEX_BUFFER_VERSION 2
248 struct __DRItexBufferExtensionRec {
252 * Method to override base texture image with the contents of a
255 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
256 * setTexBuffer2 in version 2 of this interface
258 void (*setTexBuffer)(__DRIcontext *pDRICtx,
260 __DRIdrawable *pDraw);
263 * Method to override base texture image with the contents of a
264 * __DRIdrawable, including the required texture format attribute.
266 * For GLX_EXT_texture_from_pixmap with AIGLX.
268 void (*setTexBuffer2)(__DRIcontext *pDRICtx,
271 __DRIdrawable *pDraw);
275 * Used by drivers that implement DRI2
277 #define __DRI2_FLUSH "DRI2_Flush"
278 #define __DRI2_FLUSH_VERSION 3
279 struct __DRI2flushExtensionRec {
281 void (*flush)(__DRIdrawable *drawable);
284 * Ask the driver to call getBuffers/getBuffersWithFormat before
285 * it starts rendering again.
287 * \param drawable the drawable to invalidate
291 void (*invalidate)(__DRIdrawable *drawable);
296 * XML document describing the configuration options supported by the
299 extern const char __driConfigOptions[];
304 * The following extensions describe loader features that the DRI
305 * driver can make use of. Some of these are mandatory, such as the
306 * getDrawableInfo extension for DRI and the DRI Loader extensions for
307 * DRI2, while others are optional, and if present allow the driver to
308 * expose certain features. The loader pass in a NULL terminated
309 * array of these extensions to the driver in the createNewScreen
313 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
314 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
315 typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
316 typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
317 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
321 * Callback to getDrawableInfo protocol
323 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
324 #define __DRI_GET_DRAWABLE_INFO_VERSION 1
325 struct __DRIgetDrawableInfoExtensionRec {
329 * This function is used to get information about the position, size, and
330 * clip rects of a drawable.
332 GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
333 unsigned int * index, unsigned int * stamp,
334 int * x, int * y, int * width, int * height,
335 int * numClipRects, drm_clip_rect_t ** pClipRects,
336 int * backX, int * backY,
337 int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
338 void *loaderPrivate);
342 * Callback to get system time for media stream counter extensions.
344 #define __DRI_SYSTEM_TIME "DRI_SystemTime"
345 #define __DRI_SYSTEM_TIME_VERSION 1
346 struct __DRIsystemTimeExtensionRec {
350 * Get the 64-bit unadjusted system time (UST).
352 int (*getUST)(int64_t * ust);
355 * Get the media stream counter (MSC) rate.
357 * Matching the definition in GLX_OML_sync_control, this function returns
358 * the rate of the "media stream counter". In practical terms, this is
359 * the frame refresh rate of the display.
361 GLboolean (*getMSCRate)(__DRIdrawable *draw,
362 int32_t * numerator, int32_t * denominator,
363 void *loaderPrivate);
369 #define __DRI_DAMAGE "DRI_Damage"
370 #define __DRI_DAMAGE_VERSION 1
371 struct __DRIdamageExtensionRec {
375 * Reports areas of the given drawable which have been modified by the
378 * \param drawable which the drawing was done to.
379 * \param rects rectangles affected, with the drawable origin as the
381 * \param x X offset of the drawable within the screen (used in the
383 * \param y Y offset of the drawable within the screen.
384 * \param front_buffer boolean flag for whether the drawing to the
385 * drawable was actually done directly to the front buffer (instead
386 * of backing storage, for example)
387 * \param loaderPrivate the data passed in at createNewDrawable time
389 void (*reportDamage)(__DRIdrawable *draw,
391 drm_clip_rect_t *rects, int num_rects,
392 GLboolean front_buffer,
393 void *loaderPrivate);
396 #define __DRI_SWRAST_IMAGE_OP_DRAW 1
397 #define __DRI_SWRAST_IMAGE_OP_CLEAR 2
398 #define __DRI_SWRAST_IMAGE_OP_SWAP 3
401 * SWRast Loader extension.
403 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
404 #define __DRI_SWRAST_LOADER_VERSION 1
405 struct __DRIswrastLoaderExtensionRec {
409 * Drawable position and size
411 void (*getDrawableInfo)(__DRIdrawable *drawable,
412 int *x, int *y, int *width, int *height,
413 void *loaderPrivate);
416 * Put image to drawable
418 void (*putImage)(__DRIdrawable *drawable, int op,
419 int x, int y, int width, int height,
420 char *data, void *loaderPrivate);
423 * Get image from readable
425 void (*getImage)(__DRIdrawable *readable,
426 int x, int y, int width, int height,
427 char *data, void *loaderPrivate);
431 * Invalidate loader extension. The presence of this extension
432 * indicates to the DRI driver that the loader will call invalidate in
433 * the __DRI2_FLUSH extension, whenever the needs to query for new
434 * buffers. This means that the DRI driver can drop the polling in
437 * The extension doesn't provide any functionality, it's only use to
438 * indicate to the driver that it can use the new semantics. A DRI
439 * driver can use this to switch between the different semantics or
440 * just refuse to initialize if this extension isn't present.
442 #define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
443 #define __DRI_USE_INVALIDATE_VERSION 1
445 typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension;
446 struct __DRIuseInvalidateExtensionRec {
451 * The remaining extensions describe driver extensions, immediately
452 * available interfaces provided by the driver. To start using the
453 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
454 * the extension you need in the array.
456 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
459 * Tokens for __DRIconfig attribs. A number of attributes defined by
460 * GLX or EGL standards are not in the table, as they must be provided
461 * by the loader. For example, FBConfig ID or visual ID, drawable type.
464 #define __DRI_ATTRIB_BUFFER_SIZE 1
465 #define __DRI_ATTRIB_LEVEL 2
466 #define __DRI_ATTRIB_RED_SIZE 3
467 #define __DRI_ATTRIB_GREEN_SIZE 4
468 #define __DRI_ATTRIB_BLUE_SIZE 5
469 #define __DRI_ATTRIB_LUMINANCE_SIZE 6
470 #define __DRI_ATTRIB_ALPHA_SIZE 7
471 #define __DRI_ATTRIB_ALPHA_MASK_SIZE 8
472 #define __DRI_ATTRIB_DEPTH_SIZE 9
473 #define __DRI_ATTRIB_STENCIL_SIZE 10
474 #define __DRI_ATTRIB_ACCUM_RED_SIZE 11
475 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12
476 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13
477 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14
478 #define __DRI_ATTRIB_SAMPLE_BUFFERS 15
479 #define __DRI_ATTRIB_SAMPLES 16
480 #define __DRI_ATTRIB_RENDER_TYPE 17
481 #define __DRI_ATTRIB_CONFIG_CAVEAT 18
482 #define __DRI_ATTRIB_CONFORMANT 19
483 #define __DRI_ATTRIB_DOUBLE_BUFFER 20
484 #define __DRI_ATTRIB_STEREO 21
485 #define __DRI_ATTRIB_AUX_BUFFERS 22
486 #define __DRI_ATTRIB_TRANSPARENT_TYPE 23
487 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24
488 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25
489 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26
490 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27
491 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28
492 #define __DRI_ATTRIB_FLOAT_MODE 29
493 #define __DRI_ATTRIB_RED_MASK 30
494 #define __DRI_ATTRIB_GREEN_MASK 31
495 #define __DRI_ATTRIB_BLUE_MASK 32
496 #define __DRI_ATTRIB_ALPHA_MASK 33
497 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34
498 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35
499 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36
500 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37
501 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38
502 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39
503 #define __DRI_ATTRIB_SWAP_METHOD 40
504 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41
505 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42
506 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43
507 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44
508 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45
509 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
510 #define __DRI_ATTRIB_YINVERTED 47
512 /* __DRI_ATTRIB_RENDER_TYPE */
513 #define __DRI_ATTRIB_RGBA_BIT 0x01
514 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
515 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04
517 /* __DRI_ATTRIB_CONFIG_CAVEAT */
518 #define __DRI_ATTRIB_SLOW_BIT 0x01
519 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02
521 /* __DRI_ATTRIB_TRANSPARENT_TYPE */
522 #define __DRI_ATTRIB_TRANSPARENT_RGB 0x00
523 #define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01
525 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
526 #define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01
527 #define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
528 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
531 * This extension defines the core DRI functionality.
533 #define __DRI_CORE "DRI_Core"
534 #define __DRI_CORE_VERSION 1
536 struct __DRIcoreExtensionRec {
539 __DRIscreen *(*createNewScreen)(int screen, int fd,
540 unsigned int sarea_handle,
541 const __DRIextension **extensions,
542 const __DRIconfig ***driverConfigs,
543 void *loaderPrivate);
545 void (*destroyScreen)(__DRIscreen *screen);
547 const __DRIextension **(*getExtensions)(__DRIscreen *screen);
549 int (*getConfigAttrib)(const __DRIconfig *config,
551 unsigned int *value);
553 int (*indexConfigAttrib)(const __DRIconfig *config, int index,
554 unsigned int *attrib, unsigned int *value);
556 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
557 const __DRIconfig *config,
558 unsigned int drawable_id,
560 void *loaderPrivate);
562 void (*destroyDrawable)(__DRIdrawable *drawable);
564 void (*swapBuffers)(__DRIdrawable *drawable);
566 __DRIcontext *(*createNewContext)(__DRIscreen *screen,
567 const __DRIconfig *config,
568 __DRIcontext *shared,
569 void *loaderPrivate);
571 int (*copyContext)(__DRIcontext *dest,
575 void (*destroyContext)(__DRIcontext *context);
577 int (*bindContext)(__DRIcontext *ctx,
578 __DRIdrawable *pdraw,
579 __DRIdrawable *pread);
581 int (*unbindContext)(__DRIcontext *ctx);
585 * Stored version of some component (i.e., server-side DRI module, kernel-side
589 * There are several data structures that explicitly store a major version,
590 * minor version, and patch level. These structures should be modified to
591 * have a \c __DRIversionRec instead.
593 struct __DRIversionRec {
594 int major; /**< Major version number. */
595 int minor; /**< Minor version number. */
596 int patch; /**< Patch-level. */
600 * Framebuffer information record. Used by libGL to communicate information
601 * about the framebuffer to the driver's \c __driCreateNewScreen function.
603 * In XFree86, most of this information is derrived from data returned by
604 * calling \c XF86DRIGetDeviceInfo.
606 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
607 * __driUtilCreateNewScreen CallCreateNewScreen
609 * \bug This structure could be better named.
611 struct __DRIframebufferRec {
612 unsigned char *base; /**< Framebuffer base address in the CPU's
613 * address space. This value is calculated by
614 * calling \c drmMap on the framebuffer handle
615 * returned by \c XF86DRIGetDeviceInfo (or a
618 int size; /**< Framebuffer size, in bytes. */
619 int stride; /**< Number of bytes from one line to the next. */
620 int width; /**< Pixel width of the framebuffer. */
621 int height; /**< Pixel height of the framebuffer. */
622 int dev_priv_size; /**< Size of the driver's dev-priv structure. */
623 void *dev_priv; /**< Pointer to the driver's dev-priv structure. */
628 * This extension provides alternative screen, drawable and context
629 * constructors for legacy DRI functionality. This is used in
630 * conjunction with the core extension.
632 #define __DRI_LEGACY "DRI_Legacy"
633 #define __DRI_LEGACY_VERSION 1
635 struct __DRIlegacyExtensionRec {
638 __DRIscreen *(*createNewScreen)(int screen,
639 const __DRIversion *ddx_version,
640 const __DRIversion *dri_version,
641 const __DRIversion *drm_version,
642 const __DRIframebuffer *frame_buffer,
643 void *pSAREA, int fd,
644 const __DRIextension **extensions,
645 const __DRIconfig ***driver_configs,
646 void *loaderPrivate);
648 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
649 const __DRIconfig *config,
650 drm_drawable_t hwDrawable,
651 int renderType, const int *attrs,
652 void *loaderPrivate);
654 __DRIcontext *(*createNewContext)(__DRIscreen *screen,
655 const __DRIconfig *config,
657 __DRIcontext *shared,
658 drm_context_t hwContext,
659 void *loaderPrivate);
663 * This extension provides alternative screen, drawable and context
664 * constructors for swrast DRI functionality. This is used in
665 * conjunction with the core extension.
667 #define __DRI_SWRAST "DRI_SWRast"
668 #define __DRI_SWRAST_VERSION 1
670 struct __DRIswrastExtensionRec {
673 __DRIscreen *(*createNewScreen)(int screen,
674 const __DRIextension **extensions,
675 const __DRIconfig ***driver_configs,
676 void *loaderPrivate);
678 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
679 const __DRIconfig *config,
680 void *loaderPrivate);
684 * DRI2 Loader extension.
686 #define __DRI_BUFFER_FRONT_LEFT 0
687 #define __DRI_BUFFER_BACK_LEFT 1
688 #define __DRI_BUFFER_FRONT_RIGHT 2
689 #define __DRI_BUFFER_BACK_RIGHT 3
690 #define __DRI_BUFFER_DEPTH 4
691 #define __DRI_BUFFER_STENCIL 5
692 #define __DRI_BUFFER_ACCUM 6
693 #define __DRI_BUFFER_FAKE_FRONT_LEFT 7
694 #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
695 #define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
697 struct __DRIbufferRec {
698 unsigned int attachment;
705 #define __DRI_DRI2_LOADER "DRI_DRI2Loader"
706 #define __DRI_DRI2_LOADER_VERSION 3
707 struct __DRIdri2LoaderExtensionRec {
710 __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
711 int *width, int *height,
712 unsigned int *attachments, int count,
713 int *out_count, void *loaderPrivate);
716 * Flush pending front-buffer rendering
718 * Any rendering that has been performed to the
719 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
720 * \c __DRI_BUFFER_FRONT_LEFT.
722 * \param driDrawable Drawable whose front-buffer is to be flushed
723 * \param loaderPrivate Loader's private data that was previously passed
724 * into __DRIdri2ExtensionRec::createNewDrawable
726 void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
730 * Get list of buffers from the server
732 * Gets a list of buffer for the specified set of attachments. Unlike
733 * \c ::getBuffers, this function takes a list of attachments paired with
734 * opaque \c unsigned \c int value describing the format of the buffer.
735 * It is the responsibility of the caller to know what the service that
736 * allocates the buffers will expect to receive for the format.
738 * \param driDrawable Drawable whose buffers are being queried.
739 * \param width Output where the width of the buffers is stored.
740 * \param height Output where the height of the buffers is stored.
741 * \param attachments List of pairs of attachment ID and opaque format
742 * requested for the drawable.
743 * \param count Number of attachment / format pairs stored in
745 * \param loaderPrivate Loader's private data that was previously passed
746 * into __DRIdri2ExtensionRec::createNewDrawable.
748 __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
749 int *width, int *height,
750 unsigned int *attachments, int count,
751 int *out_count, void *loaderPrivate);
755 * This extension provides alternative screen, drawable and context
756 * constructors for DRI2.
758 #define __DRI_DRI2 "DRI_DRI2"
759 #define __DRI_DRI2_VERSION 2
761 #define __DRI_API_OPENGL 0
762 #define __DRI_API_GLES 1
763 #define __DRI_API_GLES2 2
765 struct __DRIdri2ExtensionRec {
768 __DRIscreen *(*createNewScreen)(int screen, int fd,
769 const __DRIextension **extensions,
770 const __DRIconfig ***driver_configs,
771 void *loaderPrivate);
773 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
774 const __DRIconfig *config,
775 void *loaderPrivate);
777 __DRIcontext *(*createNewContext)(__DRIscreen *screen,
778 const __DRIconfig *config,
779 __DRIcontext *shared,
780 void *loaderPrivate);
782 /* Since version 2 */
783 unsigned int (*getAPIMask)(__DRIscreen *screen);
785 __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
787 const __DRIconfig *config,
788 __DRIcontext *shared,
794 * This extension provides functionality to enable various EGLImage
797 #define __DRI_IMAGE "DRI_IMAGE"
798 #define __DRI_IMAGE_VERSION 1
801 * These formats correspond to the similarly named MESA_FORMAT_*
802 * tokens, except in the native endian of the CPU. For example, on
803 * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
804 * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
806 #define __DRI_IMAGE_FORMAT_RGB565 0x1001
807 #define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
808 #define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
810 typedef struct __DRIimageRec __DRIimage;
811 typedef struct __DRIimageExtensionRec __DRIimageExtension;
812 struct __DRIimageExtensionRec {
815 __DRIimage *(*createImageFromName)(__DRIcontext *context,
816 int width, int height, int format,
818 void *loaderPrivate);
820 __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
822 void *loaderPrivate);
824 void (*destroyImage)(__DRIimage *image);
828 * This extension must be implemented by the loader and passed to the
829 * driver at screen creation time. The EGLImage entry points in the
830 * various client APIs take opaque EGLImage handles and use this
831 * extension to map them to a __DRIimage. At version 1, this
832 * extensions allows mapping EGLImage pointers to __DRIimage pointers,
833 * but future versions could support other EGLImage-like, opaque types
834 * with new lookup functions.
836 #define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
837 #define __DRI_IMAGE_LOOKUP_VERSION 1
839 typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;
840 struct __DRIimageLookupExtensionRec {
843 __DRIimage *(*lookupEGLImage)(__DRIcontext *context, void *image,
844 void *loaderPrivate);
848 * This extension allows for common DRI2 options
850 #define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
851 #define __DRI2_CONFIG_QUERY_VERSION 1
853 typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;
854 struct __DRI2configQueryExtensionRec {
857 int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);
858 int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);
859 int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);