/*
* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2007-2008 Red Hat, Inc.
* (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>
* \author Kristian Høgsberg <krh@redhat.com>
*/
#ifndef DRI_INTERFACE_H
#define DRI_INTERFACE_H
/* For archs with no drm.h */
#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
#ifndef __NOT_HAVE_DRM_H
#define __NOT_HAVE_DRM_H
#endif
#endif
#ifndef __NOT_HAVE_DRM_H
#include <drm.h>
#else
typedef unsigned int drm_context_t;
typedef unsigned int drm_drawable_t;
typedef struct drm_clip_rect drm_clip_rect_t;
#endif
/**
* \name DRI interface structures
*
* The following structures define the interface between the GLX client
* side library and the DRI (direct rendering infrastructure).
*/
/*@{*/
typedef struct __DRIdisplayRec __DRIdisplay;
typedef struct __DRIscreenRec __DRIscreen;
typedef struct __DRIcontextRec __DRIcontext;
typedef struct __DRIdrawableRec __DRIdrawable;
typedef struct __DRIconfigRec __DRIconfig;
typedef struct __DRIframebufferRec __DRIframebuffer;
typedef struct __DRIversionRec __DRIversion;
typedef struct __DRIcoreExtensionRec __DRIcoreExtension;
typedef struct __DRIextensionRec __DRIextension;
typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension;
typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension;
typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension;
typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension;
typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension;
typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension;
typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension;
typedef struct __DRIswrastExtensionRec __DRIswrastExtension;
typedef struct __DRIbufferRec __DRIbuffer;
typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension;
/*@}*/
/**
* Extension struct. Drivers 'inherit' from this struct by embedding
* it as the first element in the extension struct.
*
* 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.
*/
struct __DRIextensionRec {
const char *name;
int version;
};
/**
* 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.
*/
/**
* Used by drivers to indicate support for setting the read drawable.
*/
#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
#define __DRI_READ_DRAWABLE_VERSION 1
/**
* Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
*/
#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
#define __DRI_COPY_SUB_BUFFER_VERSION 1
struct __DRIcopySubBufferExtensionRec {
__DRIextension base;
void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
};
/**
* Used by drivers that implement the GLX_SGI_swap_control or
* GLX_MESA_swap_control extension.
*/
#define __DRI_SWAP_CONTROL "DRI_SwapControl"
#define __DRI_SWAP_CONTROL_VERSION 1
struct __DRIswapControlExtensionRec {
__DRIextension base;
void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
};
/**
* Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
*/
#define __DRI_FRAME_TRACKING "DRI_FrameTracking"
#define __DRI_FRAME_TRACKING_VERSION 1
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);
};
/**
* Used by drivers that implement the GLX_SGI_video_sync extension.
*/
#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
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);
/**
* Get the number of vertical refreshes since some point in time before
* this function was first called (i.e., system start up).
*/
int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
int64_t *msc);
};
#define __DRI_TEX_OFFSET "DRI_TexOffset"
#define __DRI_TEX_OFFSET_VERSION 1
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);
};
/* 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
#define __DRI_TEX_BUFFER "DRI_TexBuffer"
#define __DRI_TEX_BUFFER_VERSION 2
struct __DRItexBufferExtensionRec {
__DRIextension base;
/**
* Method to override base texture image with the contents of a
* __DRIdrawable.
*
* For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
* setTexBuffer2 in version 2 of this interface
*/
void (*setTexBuffer)(__DRIcontext *pDRICtx,
GLint target,
__DRIdrawable *pDraw);
/**
* 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);
/**
* 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);
};
/**
* Used by drivers that implement DRI2
*/
#define __DRI2_FLUSH "DRI2_Flush"
#define __DRI2_FLUSH_VERSION 4
#define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */
#define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */
enum __DRI2throttleReason {
__DRI2_THROTTLE_SWAPBUFFER,
__DRI2_THROTTLE_COPYSUBBUFFER,
__DRI2_THROTTLE_FLUSHFRONT
};
struct __DRI2flushExtensionRec {
__DRIextension base;
void (*flush)(__DRIdrawable *drawable);
/**
* Ask the driver to call getBuffers/getBuffersWithFormat before
* it starts rendering again.
*
* \param drawable the drawable to invalidate
*
* \since 3
*/
void (*invalidate)(__DRIdrawable *drawable);
/**
* This function reduces the number of flushes in the driver by combining
* several operations into one call.
*
* It can:
* - throttle
* - flush a drawable
* - flush a context
*
* \param context the context
* \param drawable the drawable to flush
* \param flags a combination of _DRI2_FLUSH_xxx flags
* \param throttle_reason the reason for throttling, 0 = no throttling
*
* \since 4
*/
void (*flush_with_flags)(__DRIcontext *ctx,
__DRIdrawable *drawable,
unsigned flags,
enum __DRI2throttleReason throttle_reason);
};
/**
* Extension that the driver uses to request
* throttle callbacks.
*/
#define __DRI2_THROTTLE "DRI2_Throttle"
#define __DRI2_THROTTLE_VERSION 1
struct __DRI2throttleExtensionRec {
__DRIextension base;
void (*throttle)(__DRIcontext *ctx,
__DRIdrawable *drawable,
enum __DRI2throttleReason reason);
};
/**
* XML document describing the configuration options supported by the
* driver.
*/
extern const char __driConfigOptions[];
/*@}*/
/**
* The following extensions describe loader features that the DRI
* driver can make use of. Some of these are mandatory, such as the
* getDrawableInfo extension for DRI and the DRI Loader extensions for
* 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.
*/
typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
/**
* Callback to getDrawableInfo protocol
*/
#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
#define __DRI_GET_DRAWABLE_INFO_VERSION 1
struct __DRIgetDrawableInfoExtensionRec {
__DRIextension base;
/**
* This function is used to get information about the position, size, and
* clip rects of a drawable.
*/
GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
unsigned int * index, unsigned int * stamp,
int * x, int * y, int * width, int * height,
int * numClipRects, drm_clip_rect_t ** pClipRects,
int * backX, int * backY,
int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
void *loaderPrivate);
};
/**
* 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;
/**
* 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.
*/
GLboolean (*getMSCRate)(__DRIdrawable *draw,
int32_t * numerator, int32_t * denominator,
void *loaderPrivate);
};
/**
* Damage reporting
*/
#define __DRI_DAMAGE "DRI_Damage"
#define __DRI_DAMAGE_VERSION 1
struct __DRIdamageExtensionRec {
__DRIextension base;
/**
* 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)
* \param loaderPrivate the data passed in at createNewDrawable time
*/
void (*reportDamage)(__DRIdrawable *draw,
int x, int y,
drm_clip_rect_t *rects, int num_rects,
GLboolean front_buffer,
void *loaderPrivate);
};
#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,
int x, int y, int width, int height,
char *data, void *loaderPrivate);
/**
* Get image from readable
*/
void (*getImage)(__DRIdrawable *readable,
int x, int y, int width, int height,
char *data, void *loaderPrivate);
};
/**
* 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;
};
/**
* 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
#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
/* __DRI_ATTRIB_RENDER_TYPE */
#define __DRI_ATTRIB_RGBA_BIT 0x01
#define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
#define __DRI_ATTRIB_LUMINANCE_BIT 0x04
#define __DRI_ATTRIB_FLOAT_BIT 0x08
#define __DRI_ATTRIB_UNSIGNED_FLOAT_BIT 0x10
/* __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. */
};
/**
* 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. */
};
/**
* This extension provides alternative screen, drawable and context
* constructors for legacy DRI functionality. This is used in
* conjunction with the core extension.
*/
#define __DRI_LEGACY "DRI_Legacy"
#define __DRI_LEGACY_VERSION 1
struct __DRIlegacyExtensionRec {
__DRIextension base;
__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);
};
/**
* 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"
#define __DRI_SWRAST_VERSION 3
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);
/* Since version 2 */
__DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
int api,
const __DRIconfig *config,
__DRIcontext *shared,
void *data);
/**
* Create a context for a particular API with a set of attributes
*
* \since version 3
*
* \sa __DRIdri2ExtensionRec::createContextAttribs
*/
__DRIcontext *(*createContextAttribs)(__DRIscreen *screen,
int api,
const __DRIconfig *config,
__DRIcontext *shared,
unsigned num_attribs,
const uint32_t *attribs,
unsigned *error,
void *loaderPrivate);
};
/**
* 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
#define __DRI_BUFFER_FAKE_FRONT_LEFT 7
#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
#define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
#define __DRI_BUFFER_HIZ 10
/* Inofficial and for internal use. Increase when adding a new buffer token. */
#define __DRI_BUFFER_COUNT 11
struct __DRIbufferRec {
unsigned int attachment;
unsigned int name;
unsigned int pitch;
unsigned int cpp;
unsigned int flags;
};
#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
#define __DRI_DRI2_LOADER_VERSION 3
struct __DRIdri2LoaderExtensionRec {
__DRIextension base;
__DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate);
/**
* 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);
/**
* 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);
};
/**
* This extension provides alternative screen, drawable and context
* constructors for DRI2.
*/
#define __DRI_DRI2 "DRI_DRI2"
#define __DRI_DRI2_VERSION 3
#define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */
#define __DRI_API_GLES 1 /**< OpenGL ES 1.x */
#define __DRI_API_GLES2 2 /**< OpenGL ES 2.x */
#define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */
#define __DRI_API_GLES3 4 /**< OpenGL ES 3.x */
#define __DRI_CTX_ATTRIB_MAJOR_VERSION 0
#define __DRI_CTX_ATTRIB_MINOR_VERSION 1
#define __DRI_CTX_ATTRIB_FLAGS 2
/**
* \requires __DRI2_ROBUSTNESS.
*/
#define __DRI_CTX_ATTRIB_RESET_STRATEGY 3
#define __DRI_CTX_FLAG_DEBUG 0x00000001
#define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002
/**
* \requires __DRI2_ROBUSTNESS.
*/
#define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004
/**
* \name Context reset strategies.
*/
/*@{*/
#define __DRI_CTX_RESET_NO_NOTIFICATION 0
#define __DRI_CTX_RESET_LOSE_CONTEXT 1
/*@}*/
/**
* \name Reasons that __DRIdri2Extension::createContextAttribs might fail
*/
/*@{*/
/** Success! */
#define __DRI_CTX_ERROR_SUCCESS 0
/** Memory allocation failure */
#define __DRI_CTX_ERROR_NO_MEMORY 1
/** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */
#define __DRI_CTX_ERROR_BAD_API 2
/** Client requested an API version that the driver can't do. */
#define __DRI_CTX_ERROR_BAD_VERSION 3
/** Client requested a flag or combination of flags the driver can't do. */
#define __DRI_CTX_ERROR_BAD_FLAG 4
/** Client requested an attribute the driver doesn't understand. */
#define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5
/** Client requested a flag the driver doesn't understand. */
#define __DRI_CTX_ERROR_UNKNOWN_FLAG 6
/*@}*/
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);
/* Since version 2 */
unsigned int (*getAPIMask)(__DRIscreen *screen);
__DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
int api,
const __DRIconfig *config,
__DRIcontext *shared,
void *data);
__DRIbuffer *(*allocateBuffer)(__DRIscreen *screen,
unsigned int attachment,
unsigned int format,
int width,
int height);
void (*releaseBuffer)(__DRIscreen *screen,
__DRIbuffer *buffer);
/**
* Create a context for a particular API with a set of attributes
*
* \since version 3
*
* \sa __DRIswrastExtensionRec::createContextAttribs
*/
__DRIcontext *(*createContextAttribs)(__DRIscreen *screen,
int api,
const __DRIconfig *config,
__DRIcontext *shared,
unsigned num_attribs,
const uint32_t *attribs,
unsigned *error,
void *loaderPrivate);
};
/**
* This extension provides functionality to enable various EGLImage
* extensions.
*/
#define __DRI_IMAGE "DRI_IMAGE"
#define __DRI_IMAGE_VERSION 7
/**
* 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.
*
* __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable
* by the driver (YUV planar formats) but serve as a base image for
* creating sub-images for the different planes within the image.
*
* R8, GR88 and NONE should not be used with createImageFormName or
* createImage, and are returned by query from sub images created with
* createImageFromNames (NONE, see above) and fromPlane (R8 & GR88).
*/
#define __DRI_IMAGE_FORMAT_RGB565 0x1001
#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
#define __DRI_IMAGE_FORMAT_ABGR8888 0x1004
#define __DRI_IMAGE_FORMAT_XBGR8888 0x1005
#define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */
#define __DRI_IMAGE_FORMAT_GR88 0x1007
#define __DRI_IMAGE_FORMAT_NONE 0x1008
#define __DRI_IMAGE_USE_SHARE 0x0001
#define __DRI_IMAGE_USE_SCANOUT 0x0002
#define __DRI_IMAGE_USE_CURSOR 0x0004 /* Depricated */
/**
* Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h
* and GBM_FORMAT_* from gbm.h, used with createImageFromNames.
*
* \since 5
*/
#define __DRI_IMAGE_FOURCC_RGB565 0x36314752
#define __DRI_IMAGE_FOURCC_ARGB8888 0x34325241
#define __DRI_IMAGE_FOURCC_XRGB8888 0x34325258
#define __DRI_IMAGE_FOURCC_ABGR8888 0x34324241
#define __DRI_IMAGE_FOURCC_XBGR8888 0x34324258
#define __DRI_IMAGE_FOURCC_YUV410 0x39565559
#define __DRI_IMAGE_FOURCC_YUV411 0x31315559
#define __DRI_IMAGE_FOURCC_YUV420 0x32315559
#define __DRI_IMAGE_FOURCC_YUV422 0x36315559
#define __DRI_IMAGE_FOURCC_YUV444 0x34325559
#define __DRI_IMAGE_FOURCC_NV12 0x3231564e
#define __DRI_IMAGE_FOURCC_NV16 0x3631564e
#define __DRI_IMAGE_FOURCC_YUYV 0x56595559
/**
* Queryable on images created by createImageFromNames.
*
* RGB and RGBA are may be usable directly as images but its still
* recommended to call fromPlanar with plane == 0.
*
* Y_U_V, Y_UV and Y_XUXV all requires call to fromPlanar to create
* usable sub-images, sampling from images return raw YUV data and
* color conversion needs to be done in the shader.
*
* \since 5
*/
#define __DRI_IMAGE_COMPONENTS_RGB 0x3001
#define __DRI_IMAGE_COMPONENTS_RGBA 0x3002
#define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003
#define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004
#define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005
/**
* queryImage attributes
*/
#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
#define __DRI_IMAGE_ATTRIB_NAME 0x2002
#define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */
#define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */
#define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005
#define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */
#define __DRI_IMAGE_ATTRIB_FD 0x2007 /* available in versions
* 7+. Each query will return a
* new fd. */
/**
* \name Reasons that __DRIimageExtensionRec::createImageFromTexture might fail
*/
/*@{*/
/** Success! */
#define __DRI_IMAGE_ERROR_SUCCESS 0
/** Memory allocation failure */
#define __DRI_IMAGE_ERROR_BAD_ALLOC 1
/** Client requested an invalid attribute for a texture object */
#define __DRI_IMAGE_ERROR_BAD_MATCH 2
/** Client requested an invalid texture object */
#define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
/*@}*/
typedef struct __DRIimageRec __DRIimage;
typedef struct __DRIimageExtensionRec __DRIimageExtension;
struct __DRIimageExtensionRec {
__DRIextension base;
__DRIimage *(*createImageFromName)(__DRIscreen *screen,
int width, int height, int format,
int name, int pitch,
void *loaderPrivate);
__DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
int renderbuffer,
void *loaderPrivate);
void (*destroyImage)(__DRIimage *image);
__DRIimage *(*createImage)(__DRIscreen *screen,
int width, int height, int format,
unsigned int use,
void *loaderPrivate);
GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
/**
* The new __DRIimage will share the content with the old one, see dup(2).
*/
__DRIimage *(*dupImage)(__DRIimage *image, void *loaderPrivate);
/**
* Validate that a __DRIimage can be used a certain way.
*
* \since 2
*/
GLboolean (*validateUsage)(__DRIimage *image, unsigned int use);
/**
* Unlike createImageFromName __DRI_IMAGE_FORMAT is not but instead
* __DRI_IMAGE_FOURCC and strides are in bytes not pixels. Stride is
* also per block and not per pixel (for non-RGB, see gallium blocks).
*
* \since 5
*/
__DRIimage *(*createImageFromNames)(__DRIscreen *screen,
int width, int height, int fourcc,
int *names, int num_names,
int *strides, int *offsets,
void *loaderPrivate);
/**
* Create an image out of a sub-region of a parent image. This
* entry point lets us create individual __DRIimages for different
* planes in a planar buffer (typically yuv), for example. While a
* sub-image shares the underlying buffer object with the parent
* image and other sibling sub-images, the life times of parent and
* sub-images are not dependent. Destroying the parent or a
* sub-image doesn't affect other images. The underlying buffer
* object is free when no __DRIimage remains that references it.
*
* Sub-images may overlap, but rendering to overlapping sub-images
* is undefined.
*
* \since 5
*/
__DRIimage *(*fromPlanar)(__DRIimage *image, int plane,
void *loaderPrivate);
/**
* Create image from texture.
*
* \since 6
*/
__DRIimage *(*createImageFromTexture)(__DRIcontext *context,
int target,
unsigned texture,
int depth,
int level,
unsigned *error,
void *loaderPrivate);
/**
* Like createImageFromNames, but takes a prime fd instead.
*
* \since 7
*/
__DRIimage *(*createImageFromFds)(__DRIscreen *screen,
int width, int height, int fourcc,
int *fds, int num_fds,
int *strides, int *offsets,
void *loaderPrivate);
};
/**
* 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;
__DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,
void *loaderPrivate);
};
/**
* 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);
};
/**
* Robust context driver extension.
*
* Existence of this extension means the driver can accept the
* \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
* \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in
* \c __DRIdri2ExtensionRec::createContextAttribs.
*/
#define __DRI2_ROBUSTNESS "DRI_Robustness"
#define __DRI2_ROBUSTNESS_VERSION 1
typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension;
struct __DRIrobustnessExtensionRec {
__DRIextension base;
};
#endif