new DRI interface header
This commit is contained in:
Brian Paul
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b87c5d08c7
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/*
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* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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* (C) Copyright IBM Corporation 2004
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file dri_interface.h
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*
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* This file contains all the types and functions that define the interface
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* between a DRI driver and driver loader. Currently, the most common driver
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* loader is the XFree86 libGL.so. However, other loaders do exist, and in
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* the future the server-side libglx.a will also be a loader.
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*
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* \author Kevin E. Martin <kevin@precisioninsight.com>
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* \author Ian Romanick <idr@us.ibm.com>
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*/
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/* FIXME: With a small amount of work, these two includes can be removed. */
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#include <X11/Xlib.h>
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#include <GL/glx.h>
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#ifndef DRI_NEW_INTERFACE_ONLY
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#include <GL/glxint.h>
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#endif
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#include <GL/internal/glcore.h>
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#include <xf86drm.h>
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/**
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* \name DRI interface structures
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*
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* The following structures define the interface between the GLX client
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* side library and the DRI (direct rendering infrastructure).
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*/
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/*@{*/
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typedef struct __DRIdisplayRec __DRIdisplay;
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typedef struct __DRIscreenRec __DRIscreen;
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typedef struct __DRIcontextRec __DRIcontext;
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typedef struct __DRIdrawableRec __DRIdrawable;
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typedef struct __DRIdriverRec __DRIdriver;
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typedef struct __DRIframebufferRec __DRIframebuffer;
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typedef struct __DRIversionRec __DRIversion;
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typedef unsigned long __DRIid;
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struct _XF86DRIClipRect;
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/*@}*/
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/**
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* \name Functions provided by the driver loader.
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*/
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/*@{*/
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extern __DRIscreen *__glXFindDRIScreen(Display *dpy, int scrn);
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/**
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* Type of a pointer to \c __glXGetInternalVersion, as returned by
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* \c glXGetProcAddress.
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*
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* \sa __glXGetInternalVersion, glXGetProcAddress
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*/
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typedef int (* PFNGLXGETINTERNALVERSIONPROC) ( void );
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/**
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* Type of a pointer to \c __glXWindowExists, as returned by
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* \c glXGetProcAddress.
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*
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* \sa __glXWindowExists, glXGetProcAddress
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*/
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typedef Bool (* PFNGLXWINDOWEXISTSPROC) (Display *dpy, GLXDrawable draw);
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/**
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* Type of a pointer to \c __glXGetUST, as returned by \c glXGetProcAddress.
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*
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* \sa __glXGetUST, glXGetProcAddress
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*/
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typedef int (* PFNGLXGETUSTPROC) ( int64_t * ust );
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/**
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* Type of pointer to \c __glXCreateContextModes, as returned by
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* \c glXGetProcAddress.
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*
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* \sa _gl_context_modes_create, glXGetProcAddress
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*/
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typedef __GLcontextModes * (* PFNGLXCREATECONTEXTMODES) ( unsigned count,
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size_t minimum_bytes_per_struct );
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/**
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* Type of a pointer to \c glXGetScreenDriver, as returned by
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* \c glXGetProcAddress. This function is used to get the name of the DRI
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* driver for the specified screen of the specified display. The driver
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* name is typically used with \c glXGetDriverConfig.
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*
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* \sa glXGetScreenDriver, glXGetProcAddress, glXGetDriverConfig
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*/
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typedef const char * (* PFNGLXGETSCREENDRIVERPROC) (Display *dpy, int scrNum);
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/**
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* Type of a pointer to \c glXGetDriverConfig, as returned by
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* \c glXGetProcAddress. This function is used to get the XML document
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* describing the configuration options available for the specified driver.
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*
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* \sa glXGetDriverConfig, glXGetProcAddress, glXGetScreenDriver
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*/
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typedef const char * (* PFNGLXGETDRIVERCONFIGPROC) (const char *driverName);
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/**
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* Type of a pointer to \c __glXScrEnableExtension, as returned by
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* \c glXGetProcAddress. This function is used to enable a GLX extension
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* on the specified screen.
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*
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* \sa __glXScrEnableExtension, glXGetProcAddress
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*/
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typedef void (* PFNGLXSCRENABLEEXTENSIONPROC) ( void *psc, const char * name );
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/**
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* Type of a pointer to \c __glXGetDrawableInfo, as returned by
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* \c glXGetProcAddress. This function is used to get information about the
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* position, size, and clip rects of a drawable.
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*
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* \sa __glXGetDrawableInfo, glXGetProcAddress
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*/
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typedef Bool (* PFNGLXGETDRAWABLEINFOPROC) ( Display *dpy, int scrn,
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Drawable draw, unsigned int * index, unsigned int * stamp,
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int * x, int * y, int * width, int * height,
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int * numClipRects, struct _XF86DRIClipRect ** pClipRects,
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int * backX, int * backY,
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int * numBackClipRects, struct _XF86DRIClipRect ** pBackClipRects );
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/*@}*/
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/**
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* \name Functions and data provided by the driver.
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*/
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/*@{*/
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extern void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc,
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const __GLcontextModes * modes, const __DRIversion * ddx_version,
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const __DRIversion * dri_version, const __DRIversion * drm_version,
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const __DRIframebuffer * frame_buffer, drmAddress pSAREA, int fd,
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int internal_api_version, __GLcontextModes ** driver_modes );
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#ifndef DRI_NEW_INTERFACE_ONLY
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extern void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
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int numConfigs, __GLXvisualConfig *config);
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/** This is optionally implemented in each driver */
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extern void __driRegisterExtensions( void );
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* XML document describing the configuration options supported by the
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* driver.
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*/
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extern const char __driConfigOptions[];
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/*@}*/
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/**
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* Stored version of some component (i.e., server-side DRI module, kernel-side
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* DRM, etc.).
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*
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* \todo
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* There are several data structures that explicitly store a major version,
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* minor version, and patch level. These structures should be modified to
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* have a \c __DRIversionRec instead.
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*/
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struct __DRIversionRec {
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int major; /**< Major version number. */
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int minor; /**< Minor version number. */
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int patch; /**< Patch-level. */
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};
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/**
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* Framebuffer information record. Used by libGL to communicate information
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* about the framebuffer to the driver's \c __driCreateNewScreen function.
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*
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* In XFree86, most of this information is derrived from data returned by
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* calling \c XF86DRIGetDeviceInfo.
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*
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* \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
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* __driUtilCreateNewScreen CallCreateNewScreen
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*
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* \bug This structure could be better named.
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*/
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struct __DRIframebufferRec {
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unsigned char *base; /**< Framebuffer base address in the CPU's
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* address space. This value is calculated by
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* calling \c drmMap on the framebuffer handle
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* returned by \c XF86DRIGetDeviceInfo (or a
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* similar function).
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*/
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int size; /**< Framebuffer size, in bytes. */
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int stride; /**< Number of bytes from one line to the next. */
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int width; /**< Pixel width of the framebuffer. */
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int height; /**< Pixel height of the framebuffer. */
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int dev_priv_size; /**< Size of the driver's dev-priv structure. */
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void *dev_priv; /**< Pointer to the driver's dev-priv structure. */
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};
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/**
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* Screen dependent methods. This structure is initialized during the
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* \c __DRIdisplayRec::createScreen call.
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*/
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struct __DRIscreenRec {
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/**
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* Method to destroy the private DRI screen data.
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*/
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void (*destroyScreen)(Display *dpy, int scrn, void *screenPrivate);
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/**
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* Method to create the private DRI context data and initialize the
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* context dependent methods.
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*
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* \sa __DRIscreenRec::createNewContext driCreateContext
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* driCreateNewContext
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*
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* \deprecated
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* This function has been replaced by \c __DRIscreenRec::createNewContext.
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* New drivers will continue to export this method, but it will eventually
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* (in the next XFree86 major relearse) go away.
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*/
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#ifndef DRI_NEW_INTERFACE_ONLY
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void *(*createContext)(Display *dpy, XVisualInfo *vis, void *sharedPrivate,
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__DRIcontext *pctx);
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#else
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void * createContext;
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* Method to create the private DRI drawable data and initialize the
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* drawable dependent methods.
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*/
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void *(*createNewDrawable)(Display *dpy, const __GLcontextModes *modes,
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GLXDrawable draw, __DRIdrawable *pdraw,
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int renderType, const int *attrs);
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/**
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* Method to return a pointer to the DRI drawable data.
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*/
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__DRIdrawable *(*getDrawable)(Display *dpy, GLXDrawable draw,
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void *drawablePrivate);
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/**
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* Opaque pointer to private per screen direct rendering data. \c NULL
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* if direct rendering is not supported on this screen. Never
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* dereferenced in libGL.
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*/
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void *private;
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/**
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* Get the number of vertical refreshes since some point in time before
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* this function was first called (i.e., system start up).
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*
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* \since Internal API version 20030317.
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*/
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int (*getMSC)( void *screenPrivate, int64_t *msc );
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/**
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* Opaque pointer that points back to the containing
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* \c __GLXscreenConfigs. This data structure is shared with DRI drivers
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* but \c __GLXscreenConfigs is not. However, they are needed by some GLX
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* functions called by DRI drivers.
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*
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* \since Internal API version 20030813.
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*/
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void *screenConfigs;
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/**
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* Functions associated with MESA_allocate_memory.
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*
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* \since Internal API version 20030815.
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*/
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/*@{*/
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void *(*allocateMemory)(Display *dpy, int scrn, GLsizei size,
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GLfloat readfreq, GLfloat writefreq,
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GLfloat priority);
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void (*freeMemory)(Display *dpy, int scrn, GLvoid *pointer);
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GLuint (*memoryOffset)(Display *dpy, int scrn, const GLvoid *pointer);
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/*@}*/
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/**
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* Method to create the private DRI context data and initialize the
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* context dependent methods.
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*
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* \since Internal API version 20031201.
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*/
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void * (*createNewContext)(Display *dpy, const __GLcontextModes *modes,
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int render_type,
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void *sharedPrivate, __DRIcontext *pctx);
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};
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/**
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* Context dependent methods. This structure is initialized during the
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* \c __DRIscreenRec::createContext call.
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*/
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struct __DRIcontextRec {
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/**
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* Method to destroy the private DRI context data.
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*/
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void (*destroyContext)(Display *dpy, int scrn, void *contextPrivate);
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/**
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* Method to bind a DRI drawable to a DRI graphics context.
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*
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* \deprecated Replaced by bindContext3.
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*/
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#ifndef DRI_NEW_INTERFACE_ONLY
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Bool (*bindContext)(Display *dpy, int scrn, GLXDrawable draw,
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GLXContext gc);
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#else
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void *bindContext;
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* Method to unbind a DRI drawable to a DRI graphics context.
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*
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* \deprecated Replaced by unbindContext3.
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*/
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#ifndef DRI_NEW_INTERFACE_ONLY
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Bool (*unbindContext)(Display *dpy, int scrn, GLXDrawable draw,
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GLXContext gc, int will_rebind);
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#else
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void *unbindContext;
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* Opaque pointer to private per context direct rendering data.
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* \c NULL if direct rendering is not supported on the display or
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* screen used to create this context. Never dereferenced in libGL.
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*/
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void *private;
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/**
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* Method to bind a DRI drawable to a DRI graphics context.
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*
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* \since Internal API version 20030606.
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* \deprecated Replaced by bindContext3.
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*/
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#ifndef DRI_NEW_INTERFACE_ONLY
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Bool (*bindContext2)(Display *dpy, int scrn, GLXDrawable draw,
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GLXDrawable read, GLXContext gc);
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#else
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void *bindContext2;
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* Method to unbind a DRI drawable from a DRI graphics context.
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*
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* \since Internal API version 20030606.
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* \deprecated Replaced by unbindContext3.
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*/
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#ifndef DRI_NEW_INTERFACE_ONLY
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Bool (*unbindContext2)(Display *dpy, int scrn, GLXDrawable draw,
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GLXDrawable read, GLXContext gc);
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#else
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void *unbindContext2;
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#endif /* DRI_NEW_INTERFACE_ONLY */
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/**
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* Pointer to the mode used to create this context.
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*
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* \since Internal API version 20040317.
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*/
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const __GLcontextModes * mode;
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/**
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* Method to bind a DRI drawable to a DRI graphics context.
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*
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* \since Internal API version 20040317.
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*/
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Bool (*bindContext3)(Display *dpy, int scrn, __DRIid draw,
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__DRIid read, __DRIcontext *ctx);
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/**
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* Method to unbind a DRI drawable from a DRI graphics context.
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*
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* \since Internal API version 20040317.
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*/
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Bool (*unbindContext3)(Display *dpy, int scrn, __DRIid draw,
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__DRIid read, __DRIcontext *ctx);
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};
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/**
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* Drawable dependent methods. This structure is initialized during the
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* \c __DRIscreenRec::createDrawable call. \c createDrawable is not called
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* by libGL at this time. It's currently used via the dri_util.c utility code
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* instead.
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*/
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struct __DRIdrawableRec {
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/**
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* Method to destroy the private DRI drawable data.
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*/
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void (*destroyDrawable)(Display *dpy, void *drawablePrivate);
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/**
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* Method to swap the front and back buffers.
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*/
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void (*swapBuffers)(Display *dpy, void *drawablePrivate);
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/**
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* Opaque pointer to private per drawable direct rendering data.
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* \c NULL if direct rendering is not supported on the display or
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* screen used to create this drawable. Never dereferenced in libGL.
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*/
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void *private;
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/**
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* Get the number of completed swap buffers for this drawable.
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*
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* \since Internal API version 20030317.
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*/
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int (*getSBC)(Display *dpy, void *drawablePrivate, int64_t *sbc );
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/**
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* Wait for the SBC to be greater than or equal target_sbc.
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*
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* \since Internal API version 20030317.
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*/
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int (*waitForSBC)( Display * dpy, void *drawablePriv,
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int64_t target_sbc,
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int64_t * msc, int64_t * sbc );
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/**
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* Wait for the MSC to equal target_msc, or, if that has already passed,
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* the next time (MSC % divisor) is equal to remainder. If divisor is
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* zero, the function will return as soon as MSC is greater than or equal
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* to target_msc.
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*
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* \since Internal API version 20030317.
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*/
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int (*waitForMSC)( Display * dpy, void *drawablePriv,
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int64_t target_msc, int64_t divisor, int64_t remainder,
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int64_t * msc, int64_t * sbc );
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/**
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* Like \c swapBuffers, but does NOT have an implicit \c glFlush. Once
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* rendering is complete, waits until MSC is equal to target_msc, or
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* if that has already passed, waits until (MSC % divisor) is equal
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* to remainder. If divisor is zero, the swap will happen as soon as
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* MSC is greater than or equal to target_msc.
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*
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* \since Internal API version 20030317.
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*/
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int64_t (*swapBuffersMSC)(Display *dpy, void *drawablePrivate,
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int64_t target_msc,
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int64_t divisor, int64_t remainder);
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/**
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* Enable or disable frame usage tracking.
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||||
*
|
||||
* \since Internal API version 20030317.
|
||||
*/
|
||||
int (*frameTracking)(Display *dpy, void *drawablePrivate, Bool enable);
|
||||
|
||||
/**
|
||||
* Retrieve frame usage information.
|
||||
*
|
||||
* \since Internal API version 20030317.
|
||||
*/
|
||||
int (*queryFrameTracking)(Display *dpy, void *drawablePrivate,
|
||||
int64_t * sbc, int64_t * missedFrames,
|
||||
float * lastMissedUsage, float * usage );
|
||||
|
||||
/**
|
||||
* Used by drivers that implement the GLX_SGI_swap_control or
|
||||
* GLX_MESA_swap_control extension.
|
||||
*
|
||||
* \since Internal API version 20030317.
|
||||
*/
|
||||
unsigned swap_interval;
|
||||
};
|
||||
Loading…
Reference in New Issue