diff options
Diffstat (limited to 'include/GL/internal')
| -rw-r--r-- | include/GL/internal/dri_interface.h | 478 | ||||
| -rw-r--r-- | include/GL/internal/glcore.h | 498 | ||||
| -rw-r--r-- | include/GL/internal/sarea.h | 94 |
3 files changed, 1070 insertions, 0 deletions
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h new file mode 100644 index 00000000000..e63415db026 --- /dev/null +++ b/include/GL/internal/dri_interface.h @@ -0,0 +1,478 @@ +/* + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * (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 <[email protected]> + * \author Ian Romanick <[email protected]> + */ + +#ifndef DRI_INTERFACE_H +#define DRI_INTERFACE_H + +#include <GL/internal/glcore.h> +#include <xf86drm.h> +#include <drm.h> + +/** + * \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 __DRIdriverRec __DRIdriver; +typedef struct __DRIframebufferRec __DRIframebuffer; +typedef struct __DRIversionRec __DRIversion; +typedef struct __DRIinterfaceMethodsRec __DRIinterfaceMethods; +typedef unsigned long __DRIid; +typedef void __DRInativeDisplay; +/*@}*/ + + +/** + * \name Functions provided by the driver loader. + */ +/*@{*/ +/** + * Type of a pointer to \c glXGetScreenDriver, as returned by + * \c glXGetProcAddress. This function is used to get the name of the DRI + * driver for the specified screen of the specified display. The driver + * name is typically used with \c glXGetDriverConfig. + * + * \sa glXGetScreenDriver, glXGetProcAddress, glXGetDriverConfig + */ +typedef const char * (* PFNGLXGETSCREENDRIVERPROC) (__DRInativeDisplay *dpy, int scrNum); + +/** + * Type of a pointer to \c glXGetDriverConfig, as returned by + * \c glXGetProcAddress. This function is used to get the XML document + * describing the configuration options available for the specified driver. + * + * \sa glXGetDriverConfig, glXGetProcAddress, glXGetScreenDriver + */ +typedef const char * (* PFNGLXGETDRIVERCONFIGPROC) (const char *driverName); + +/** + * Type of a pointer to \c glxEnableExtension, as returned by + * \c __DRIinterfaceMethods::getProcAddress. This function is used to enable + * a GLX extension on the specified screen. + */ +typedef void (* PFNGLXSCRENABLEEXTENSIONPROC) ( void *psc, const char * name ); +/*@}*/ + + +/** + * \name Functions and data provided by the driver. + */ +/*@{*/ + +typedef void *(CREATENEWSCREENFUNC)(__DRInativeDisplay *dpy, int scrn, + __DRIscreen *psc, const __GLcontextModes * modes, + const __DRIversion * ddx_version, const __DRIversion * dri_version, + const __DRIversion * drm_version, const __DRIframebuffer * frame_buffer, + void * pSAREA, int fd, int internal_api_version, + const __DRIinterfaceMethods * interface, + __GLcontextModes ** driver_modes); +typedef CREATENEWSCREENFUNC* PFNCREATENEWSCREENFUNC; +extern CREATENEWSCREENFUNC __driCreateNewScreen_20050727; + + +/** + * XML document describing the configuration options supported by the + * driver. + */ +extern const char __driConfigOptions[]; + +/*@}*/ + + +/** + * 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. */ +}; + + +typedef void (*__DRIfuncPtr)(void); + +struct __DRIinterfaceMethodsRec { + /** + * Get pointer to named function. + */ + __DRIfuncPtr (*getProcAddress)( const char * proc_name ); + + /** + * Create a list of \c __GLcontextModes structures. + */ + __GLcontextModes * (*createContextModes)(unsigned count, + size_t minimum_bytes_per_struct); + + /** + * Destroy a list of \c __GLcontextModes structures. + * + * \todo + * Determine if the drivers actually need to call this. + */ + void (*destroyContextModes)( __GLcontextModes * modes ); + + /** + * Get the \c __DRIscreen for a given display and screen number. + */ + __DRIscreen *(*getScreen)(__DRInativeDisplay *dpy, int screenNum); + + + /** + * \name Client/server protocol functions. + * + * These functions implement the DRI client/server protocol for + * context and drawable operations. Platforms that do not implement + * the wire protocol (e.g., EGL) will implement glorified no-op functions. + */ + /*@{*/ + /** + * Determine if the specified window ID still exists. + * + * \note + * Implementations may assume that the driver will only pass an ID into + * this function that actually corresponds to a window. On + * implementations where windows can only be destroyed by the DRI driver + * (e.g., EGL), this function is allowed to always return \c GL_TRUE. + */ + GLboolean (*windowExists)(__DRInativeDisplay *dpy, __DRIid draw); + + /** + * Create the server-side portion of the GL context. + */ + GLboolean (* createContext)( __DRInativeDisplay *dpy, int screenNum, + int configID, void * contextID, drm_context_t * hw_context ); + + /** + * Destroy the server-side portion of the GL context. + */ + GLboolean (* destroyContext)( __DRInativeDisplay *dpy, int screenNum, + __DRIid context ); + + /** + * Create the server-side portion of the drawable. + */ + GLboolean (*createDrawable)( __DRInativeDisplay * ndpy, int screen, + __DRIid drawable, drm_drawable_t * hHWDrawable ); + + /** + * Destroy the server-side portion of the drawable. + */ + GLboolean (*destroyDrawable)( __DRInativeDisplay * ndpy, int screen, + __DRIid drawable ); + + /** + * This function is used to get information about the position, size, and + * clip rects of a drawable. + */ + GLboolean (* getDrawableInfo) ( __DRInativeDisplay *dpy, int scrn, + __DRIid draw, 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 ); + /*@}*/ + + + /** + * \name Timing related functions. + */ + /*@{*/ + /** + * 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)(__DRInativeDisplay * dpy, __DRIid drawable, + int32_t * numerator, int32_t * denominator); + /*@}*/ +}; + + +/** + * 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. */ +}; + + +/** + * Screen dependent methods. This structure is initialized during the + * \c __DRIdisplayRec::createScreen call. + */ +struct __DRIscreenRec { + /** + * Method to destroy the private DRI screen data. + */ + void (*destroyScreen)(__DRInativeDisplay *dpy, int scrn, void *screenPrivate); + + /** + * Method to create the private DRI drawable data and initialize the + * drawable dependent methods. + */ + void *(*createNewDrawable)(__DRInativeDisplay *dpy, const __GLcontextModes *modes, + __DRIid draw, __DRIdrawable *pdraw, + int renderType, const int *attrs); + + /** + * Method to return a pointer to the DRI drawable data. + */ + __DRIdrawable *(*getDrawable)(__DRInativeDisplay *dpy, __DRIid draw, + void *drawablePrivate); + + /** + * Opaque pointer to private per screen direct rendering data. \c NULL + * if direct rendering is not supported on this screen. Never + * dereferenced in libGL. + */ + void *private; + + /** + * Get the number of vertical refreshes since some point in time before + * this function was first called (i.e., system start up). + * + * \since Internal API version 20030317. + */ + int (*getMSC)( void *screenPrivate, int64_t *msc ); + + /** + * Opaque pointer that points back to the containing + * \c __GLXscreenConfigs. This data structure is shared with DRI drivers + * but \c __GLXscreenConfigs is not. However, they are needed by some GLX + * functions called by DRI drivers. + * + * \since Internal API version 20030813. + */ + void *screenConfigs; + + /** + * Functions associated with MESA_allocate_memory. + * + * \since Internal API version 20030815. + */ + /*@{*/ + void *(*allocateMemory)(__DRInativeDisplay *dpy, int scrn, GLsizei size, + GLfloat readfreq, GLfloat writefreq, + GLfloat priority); + + void (*freeMemory)(__DRInativeDisplay *dpy, int scrn, GLvoid *pointer); + + GLuint (*memoryOffset)(__DRInativeDisplay *dpy, int scrn, const GLvoid *pointer); + /*@}*/ + + /** + * Method to create the private DRI context data and initialize the + * context dependent methods. + * + * \since Internal API version 20031201. + */ + void * (*createNewContext)(__DRInativeDisplay *dpy, const __GLcontextModes *modes, + int render_type, + void *sharedPrivate, __DRIcontext *pctx); +}; + +/** + * Context dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createContext call. + */ +struct __DRIcontextRec { + /** + * Method to destroy the private DRI context data. + */ + void (*destroyContext)(__DRInativeDisplay *dpy, int scrn, void *contextPrivate); + + /** + * Opaque pointer to private per context direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this context. Never dereferenced in libGL. + */ + void *private; + + /** + * Pointer to the mode used to create this context. + * + * \since Internal API version 20040317. + */ + const __GLcontextModes * mode; + + /** + * Method to bind a DRI drawable to a DRI graphics context. + * + * \since Internal API version 20050727. + */ + GLboolean (*bindContext)(__DRInativeDisplay *dpy, int scrn, __DRIid draw, + __DRIid read, __DRIcontext *ctx); + + /** + * Method to unbind a DRI drawable from a DRI graphics context. + * + * \since Internal API version 20050727. + */ + GLboolean (*unbindContext)(__DRInativeDisplay *dpy, int scrn, __DRIid draw, + __DRIid read, __DRIcontext *ctx); +}; + +/** + * Drawable dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createDrawable call. \c createDrawable is not called + * by libGL at this time. It's currently used via the dri_util.c utility code + * instead. + */ +struct __DRIdrawableRec { + /** + * Method to destroy the private DRI drawable data. + */ + void (*destroyDrawable)(__DRInativeDisplay *dpy, void *drawablePrivate); + + /** + * Method to swap the front and back buffers. + */ + void (*swapBuffers)(__DRInativeDisplay *dpy, void *drawablePrivate); + + /** + * Opaque pointer to private per drawable direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this drawable. Never dereferenced in libGL. + */ + void *private; + + /** + * Get the number of completed swap buffers for this drawable. + * + * \since Internal API version 20030317. + */ + int (*getSBC)(__DRInativeDisplay *dpy, void *drawablePrivate, int64_t *sbc ); + + /** + * Wait for the SBC to be greater than or equal target_sbc. + * + * \since Internal API version 20030317. + */ + int (*waitForSBC)( __DRInativeDisplay * dpy, void *drawablePriv, + int64_t target_sbc, + int64_t * msc, int64_t * sbc ); + + /** + * 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. + * + * \since Internal API version 20030317. + */ + int (*waitForMSC)( __DRInativeDisplay * dpy, void *drawablePriv, + int64_t target_msc, int64_t divisor, int64_t remainder, + int64_t * msc, int64_t * sbc ); + + /** + * Like \c swapBuffers, but does NOT have an implicit \c glFlush. Once + * rendering is complete, waits until MSC is equal to target_msc, or + * if that has already passed, waits until (MSC % divisor) is equal + * to remainder. If divisor is zero, the swap will happen as soon as + * MSC is greater than or equal to target_msc. + * + * \since Internal API version 20030317. + */ + int64_t (*swapBuffersMSC)(__DRInativeDisplay *dpy, void *drawablePrivate, + int64_t target_msc, + int64_t divisor, int64_t remainder); + + /** + * Enable or disable frame usage tracking. + * + * \since Internal API version 20030317. + */ + int (*frameTracking)(__DRInativeDisplay *dpy, void *drawablePrivate, GLboolean enable); + + /** + * Retrieve frame usage information. + * + * \since Internal API version 20030317. + */ + int (*queryFrameTracking)(__DRInativeDisplay *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; +}; + +#endif diff --git a/include/GL/internal/glcore.h b/include/GL/internal/glcore.h new file mode 100644 index 00000000000..48748d91e8f --- /dev/null +++ b/include/GL/internal/glcore.h @@ -0,0 +1,498 @@ +/* $XFree86: xc/lib/GL/include/GL/internal/glcore.h,v 1.7 2001/03/25 05:32:00 tsi Exp $ */ +#ifndef __gl_core_h_ +#define __gl_core_h_ + +/* +** License Applicability. Except to the extent portions of this file are +** made subject to an alternative license as permitted in the SGI Free +** Software License B, Version 1.1 (the "License"), the contents of this +** file are subject only to the provisions of the License. You may not use +** this file except in compliance with the License. You may obtain a copy +** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +** +** http://oss.sgi.com/projects/FreeB +** +** Note that, as provided in the License, the Software is distributed on an +** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +** +** Original Code. The Original Code is: OpenGL Sample Implementation, +** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +** Copyright in any portions created by third parties is as indicated +** elsewhere herein. All Rights Reserved. +** +** Additional Notice Provisions: The application programming interfaces +** established by SGI in conjunction with the Original Code are The +** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +** Window System(R) (Version 1.3), released October 19, 1998. This software +** was created using the OpenGL(R) version 1.2.1 Sample Implementation +** published by SGI, but has not been independently verified as being +** compliant with the OpenGL(R) version 1.2.1 Specification. +** +*/ + +#ifndef XFree86LOADER +#include <sys/types.h> +#endif + +#ifdef CAPI +#undef CAPI +#endif +#define CAPI + +#define GL_CORE_SGI 1 +#define GL_CORE_MESA 2 +#define GL_CORE_APPLE 4 + +typedef struct __GLcontextRec __GLcontext; +typedef struct __GLinterfaceRec __GLinterface; + +/* +** This file defines the interface between the GL core and the surrounding +** "operating system" that supports it (currently the GLX or WGL extensions). +** +** Members (data and function pointers) are documented as imported or +** exported according to how they are used by the core rendering functions. +** Imported members are initialized by the "operating system" and used by +** the core functions. Exported members are initialized by the core functions +** and used by the "operating system". +*/ + +/* +** Mode and limit information for a context. This information is +** kept around in the context so that values can be used during +** command execution, and for returning information about the +** context to the application. +*/ +typedef struct __GLcontextModesRec { + struct __GLcontextModesRec * next; + + GLboolean rgbMode; + GLboolean floatMode; + GLboolean colorIndexMode; + GLuint doubleBufferMode; + GLuint stereoMode; + + GLboolean haveAccumBuffer; + GLboolean haveDepthBuffer; + GLboolean haveStencilBuffer; + + GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */ + GLuint redMask, greenMask, blueMask, alphaMask; + GLint rgbBits; /* total bits for rgb */ + GLint indexBits; /* total bits for colorindex */ + + GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits; + GLint depthBits; + GLint stencilBits; + + GLint numAuxBuffers; + + GLint level; + + GLint pixmapMode; + + /* GLX */ + GLint visualID; + GLint visualType; /**< One of the GLX X visual types. (i.e., + * \c GLX_TRUE_COLOR, etc.) + */ + + /* EXT_visual_rating / GLX 1.2 */ + GLint visualRating; + + /* EXT_visual_info / GLX 1.2 */ + GLint transparentPixel; + /* colors are floats scaled to ints */ + GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha; + GLint transparentIndex; + + /* ARB_multisample / SGIS_multisample */ + GLint sampleBuffers; + GLint samples; + + /* SGIX_fbconfig / GLX 1.3 */ + GLint drawableType; + GLint renderType; + GLint xRenderable; + GLint fbconfigID; + + /* SGIX_pbuffer / GLX 1.3 */ + GLint maxPbufferWidth; + GLint maxPbufferHeight; + GLint maxPbufferPixels; + GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */ + GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */ + + /* SGIX_visual_select_group */ + GLint visualSelectGroup; + + /* OML_swap_method */ + GLint swapMethod; + + GLint screen; +} __GLcontextModes; + +/* Several fields of __GLcontextModes can take these as values. Since + * GLX header files may not be available everywhere they need to be used, + * redefine them here. + */ +#define GLX_NONE 0x8000 +#define GLX_SLOW_CONFIG 0x8001 +#define GLX_TRUE_COLOR 0x8002 +#define GLX_DIRECT_COLOR 0x8003 +#define GLX_PSEUDO_COLOR 0x8004 +#define GLX_STATIC_COLOR 0x8005 +#define GLX_GRAY_SCALE 0x8006 +#define GLX_STATIC_GRAY 0x8007 +#define GLX_TRANSPARENT_RGB 0x8008 +#define GLX_TRANSPARENT_INDEX 0x8009 +#define GLX_NON_CONFORMANT_CONFIG 0x800D +#define GLX_SWAP_EXCHANGE_OML 0x8061 +#define GLX_SWAP_COPY_OML 0x8062 +#define GLX_SWAP_UNDEFINED_OML 0x8063 + +#define GLX_DONT_CARE 0xFFFFFFFF + +#define GLX_RGBA_BIT 0x00000001 +#define GLX_COLOR_INDEX_BIT 0x00000002 +#define GLX_WINDOW_BIT 0x00000001 +#define GLX_PIXMAP_BIT 0x00000002 +#define GLX_PBUFFER_BIT 0x00000004 + +/************************************************************************/ + +/* +** Structure used for allocating and freeing drawable private memory. +** (like software buffers, for example). +** +** The memory allocation routines are provided by the surrounding +** "operating system" code, and they are to be used for allocating +** software buffers and things which are associated with the drawable, +** and used by any context which draws to that drawable. There are +** separate memory allocation functions for drawables and contexts +** since drawables and contexts can be created and destroyed independently +** of one another, and the "operating system" may want to use separate +** allocation arenas for each. +** +** The freePrivate function is filled in by the core routines when they +** allocates software buffers, and stick them in "private". The freePrivate +** function will destroy anything allocated to this drawable (to be called +** when the drawable is destroyed). +*/ +typedef struct __GLdrawableRegionRec __GLdrawableRegion; +typedef struct __GLdrawableBufferRec __GLdrawableBuffer; +typedef struct __GLdrawablePrivateRec __GLdrawablePrivate; + +typedef struct __GLregionRectRec { + /* lower left (inside the rectangle) */ + GLint x0, y0; + /* upper right (outside the rectangle) */ + GLint x1, y1; +} __GLregionRect; + +struct __GLdrawableRegionRec { + GLint numRects; + __GLregionRect *rects; + __GLregionRect boundingRect; +}; + +/************************************************************************/ + +/* masks for the buffers */ +#define __GL_FRONT_BUFFER_MASK 0x00000001 +#define __GL_FRONT_LEFT_BUFFER_MASK 0x00000001 +#define __GL_FRONT_RIGHT_BUFFER_MASK 0x00000002 +#define __GL_BACK_BUFFER_MASK 0x00000004 +#define __GL_BACK_LEFT_BUFFER_MASK 0x00000004 +#define __GL_BACK_RIGHT_BUFFER_MASK 0x00000008 +#define __GL_ACCUM_BUFFER_MASK 0x00000010 +#define __GL_DEPTH_BUFFER_MASK 0x00000020 +#define __GL_STENCIL_BUFFER_MASK 0x00000040 +#define __GL_AUX_BUFFER_MASK(i) (0x0000080 << (i)) + +#define __GL_ALL_BUFFER_MASK 0xffffffff + +/* what Resize routines return if resize resorted to fallback case */ +#define __GL_BUFFER_FALLBACK 0x10 + +typedef void (*__GLbufFallbackInitFn)(__GLdrawableBuffer *buf, + __GLdrawablePrivate *glPriv, GLint bits); +typedef void (*__GLbufMainInitFn)(__GLdrawableBuffer *buf, + __GLdrawablePrivate *glPriv, GLint bits, + __GLbufFallbackInitFn back); + +/* +** A drawable buffer +** +** This data structure describes the context side of a drawable. +** +** According to the spec there could be multiple contexts bound to the same +** drawable at the same time (from different threads). In order to avoid +** multiple-access conflicts, locks are used to serialize access. When a +** thread needs to access (read or write) a member of the drawable, it takes +** a lock first. Some of the entries in the drawable are treated "mostly +** constant", so we take the freedom of allowing access to them without +** taking a lock (for optimization reasons). +** +** For more details regarding locking, see buffers.h in the GL core +*/ +struct __GLdrawableBufferRec { + /* + ** Buffer dimensions + */ + GLint width, height, depth; + + /* + ** Framebuffer base address + */ + void *base; + + /* + ** Framebuffer size (in bytes) + */ + GLuint size; + + /* + ** Size (in bytes) of each element in the framebuffer + */ + GLuint elementSize; + GLuint elementSizeLog2; + + /* + ** Element skip from one scanline to the next. + ** If the buffer is part of another buffer (for example, fullscreen + ** front buffer), outerWidth is the width of that buffer. + */ + GLint outerWidth; + + /* + ** outerWidth * elementSize + */ + GLint byteWidth; + + /* + ** Allocation/deallocation is done based on this handle. A handle + ** is conceptually different from the framebuffer 'base'. + */ + void *handle; + + /* imported */ + GLboolean (*resize)(__GLdrawableBuffer *buf, + GLint x, GLint y, GLuint width, GLuint height, + __GLdrawablePrivate *glPriv, GLuint bufferMask); + void (*lock)(__GLdrawableBuffer *buf, __GLdrawablePrivate *glPriv); + void (*unlock)(__GLdrawableBuffer *buf, __GLdrawablePrivate *glPriv); + void (*fill)(__GLdrawableBuffer *buf, __GLdrawablePrivate *glPriv, + GLuint val, GLint x, GLint y, GLint w, GLint h); + void (*free)(__GLdrawableBuffer *buf, __GLdrawablePrivate *glPriv); + + /* exported */ + void (*freePrivate)(__GLdrawableBuffer *buf, __GLdrawablePrivate *glPriv); +#ifdef __cplusplus + void *privatePtr; +#else + void *private; +#endif + + /* private */ + void *other; /* implementation private data */ + __GLbufMainInitFn mainInit; + __GLbufFallbackInitFn fallbackInit; +}; + +/* +** The context side of the drawable private +*/ +struct __GLdrawablePrivateRec { + /* + ** Drawable Modes + */ + __GLcontextModes *modes; + + /* + ** Drawable size + */ + GLuint width, height; + + /* + ** Origin in screen coordinates of the drawable + */ + GLint xOrigin, yOrigin; +#ifdef __GL_ALIGNED_BUFFERS + /* + ** Drawable offset from screen origin + */ + GLint xOffset, yOffset; + + /* + ** Alignment restriction + */ + GLint xAlignment, yAlignment; +#endif + /* + ** Should we invert the y axis? + */ + GLint yInverted; + + /* + ** Mask specifying which buffers are renderable by the hw + */ + GLuint accelBufferMask; + + /* + ** the buffers themselves + */ + __GLdrawableBuffer frontBuffer; + __GLdrawableBuffer backBuffer; + __GLdrawableBuffer accumBuffer; + __GLdrawableBuffer depthBuffer; + __GLdrawableBuffer stencilBuffer; +#if defined(__GL_NUMBER_OF_AUX_BUFFERS) && (__GL_NUMBER_OF_AUX_BUFFERS > 0) + __GLdrawableBuffer *auxBuffer; +#endif + + __GLdrawableRegion ownershipRegion; + + /* + ** Lock for the drawable private structure + */ + void *lock; +#ifdef DEBUG + /* lock debugging info */ + int lockRefCount; + int lockLine[10]; + char *lockFile[10]; +#endif + + /* imported */ + void *(*malloc)(size_t size); + void *(*calloc)(size_t numElem, size_t elemSize); + void *(*realloc)(void *oldAddr, size_t newSize); + void (*free)(void *addr); + + GLboolean (*addSwapRect)(__GLdrawablePrivate *glPriv, + GLint x, GLint y, GLsizei width, GLsizei height); + void (*setClipRect)(__GLdrawablePrivate *glPriv, + GLint x, GLint y, GLsizei width, GLsizei height); + void (*updateClipRegion)(__GLdrawablePrivate *glPriv); + GLboolean (*resize)(__GLdrawablePrivate *glPriv); + void (*getDrawableSize)(__GLdrawablePrivate *glPriv, + GLint *x, GLint *y, GLuint *width, GLuint *height); + + void (*lockDP)(__GLdrawablePrivate *glPriv, __GLcontext *gc); + void (*unlockDP)(__GLdrawablePrivate *glPriv); + + /* exported */ +#ifdef __cplusplus + void *privatePtr; +#else + void *private; +#endif + void (*freePrivate)(__GLdrawablePrivate *); + + /* client data */ + void *other; +}; + +/* +** Macros to lock/unlock the drawable private +*/ +#if defined(DEBUG) +#define __GL_LOCK_DP(glPriv,gc) \ + (*(glPriv)->lockDP)(glPriv,gc); \ + (glPriv)->lockLine[(glPriv)->lockRefCount] = __LINE__; \ + (glPriv)->lockFile[(glPriv)->lockRefCount] = __FILE__; \ + (glPriv)->lockRefCount++ +#define __GL_UNLOCK_DP(glPriv) \ + (glPriv)->lockRefCount--; \ + (glPriv)->lockLine[(glPriv)->lockRefCount] = 0; \ + (glPriv)->lockFile[(glPriv)->lockRefCount] = NULL; \ + (*(glPriv)->unlockDP)(glPriv) +#else /* DEBUG */ +#define __GL_LOCK_DP(glPriv,gc) (*(glPriv)->lockDP)(glPriv,gc) +#define __GL_UNLOCK_DP(glPriv) (*(glPriv)->unlockDP)(glPriv) +#endif /* DEBUG */ + + +/* +** Procedures which are imported by the GL from the surrounding +** "operating system". Math functions are not considered part of the +** "operating system". +*/ +typedef struct __GLimportsRec { + /* Memory management */ + void * (*malloc)(__GLcontext *gc, size_t size); + void *(*calloc)(__GLcontext *gc, size_t numElem, size_t elemSize); + void *(*realloc)(__GLcontext *gc, void *oldAddr, size_t newSize); + void (*free)(__GLcontext *gc, void *addr); + + /* Error handling */ + void (*warning)(__GLcontext *gc, char *fmt); + void (*fatal)(__GLcontext *gc, char *fmt); + + /* other system calls */ + char *(CAPI *getenv)(__GLcontext *gc, const char *var); + int (CAPI *atoi)(__GLcontext *gc, const char *str); + int (CAPI *sprintf)(__GLcontext *gc, char *str, const char *fmt, ...); + void *(CAPI *fopen)(__GLcontext *gc, const char *path, const char *mode); + int (CAPI *fclose)(__GLcontext *gc, void *stream); + int (CAPI *fprintf)(__GLcontext *gc, void *stream, const char *fmt, ...); + + /* Drawing surface management */ + __GLdrawablePrivate *(*getDrawablePrivate)(__GLcontext *gc); + __GLdrawablePrivate *(*getReadablePrivate)(__GLcontext *gc); + + /* Operating system dependent data goes here */ + void *other; +} __GLimports; + +/************************************************************************/ + +/* +** Procedures which are exported by the GL to the surrounding "operating +** system" so that it can manage multiple GL context's. +*/ +typedef struct __GLexportsRec { + /* Context management (return GL_FALSE on failure) */ + GLboolean (*destroyContext)(__GLcontext *gc); + GLboolean (*loseCurrent)(__GLcontext *gc); + /* oldglPriv isn't used anymore, kept for backwards compatibility */ + GLboolean (*makeCurrent)(__GLcontext *gc); + GLboolean (*shareContext)(__GLcontext *gc, __GLcontext *gcShare); + GLboolean (*copyContext)(__GLcontext *dst, const __GLcontext *src, GLuint mask); + GLboolean (*forceCurrent)(__GLcontext *gc); + + /* Drawing surface notification callbacks */ + GLboolean (*notifyResize)(__GLcontext *gc); + void (*notifyDestroy)(__GLcontext *gc); + void (*notifySwapBuffers)(__GLcontext *gc); + + /* Dispatch table override control for external agents like libGLS */ + struct __GLdispatchStateRec* (*dispatchExec)(__GLcontext *gc); + void (*beginDispatchOverride)(__GLcontext *gc); + void (*endDispatchOverride)(__GLcontext *gc); +} __GLexports; + +/************************************************************************/ + +/* +** This must be the first member of a __GLcontext structure. This is the +** only part of a context that is exposed to the outside world; everything +** else is opaque. +*/ +struct __GLinterfaceRec { + __GLimports imports; + __GLexports exports; +}; + +extern __GLcontext *__glCoreCreateContext(__GLimports *, __GLcontextModes *); +extern void __glCoreNopDispatch(void); + +#endif /* __gl_core_h_ */ diff --git a/include/GL/internal/sarea.h b/include/GL/internal/sarea.h new file mode 100644 index 00000000000..77c16e0efe2 --- /dev/null +++ b/include/GL/internal/sarea.h @@ -0,0 +1,94 @@ +/* $XFree86: xc/programs/Xserver/GL/dri/sarea.h,v 1.11 2002/10/30 12:52:03 alanh Exp $ */ +/** + * \file sarea.h + * SAREA definitions. + * + * \author Kevin E. Martin <[email protected]> + * \author Jens Owen <[email protected]> + * \author Rickard E. (Rik) Faith <[email protected]> + */ + +/* + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc. + * 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 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 PRECISION INSIGHT AND/OR ITS 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. + */ + +/* $XFree86: xc/programs/Xserver/GL/dri/sarea.h,v 1.11 2002/10/30 12:52:03 alanh Exp $ */ + +#ifndef _SAREA_H_ +#define _SAREA_H_ + +#include "xf86drm.h" + +/* SAREA area needs to be at least a page */ +#if defined(__alpha__) +#define SAREA_MAX 0x2000 +#elif defined(__ia64__) +#define SAREA_MAX 0x10000 /* 64kB */ +#else +/* Intel 830M driver needs at least 8k SAREA */ +#define SAREA_MAX 0x2000 +#endif + +#define SAREA_MAX_DRAWABLES 256 + +#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 + +/** + * SAREA per drawable information. + * + * \sa _XF86DRISAREA. + */ +typedef struct _XF86DRISAREADrawable { + unsigned int stamp; + unsigned int flags; +} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr; + +/** + * SAREA frame information. + * + * \sa _XF86DRISAREA. + */ +typedef struct _XF86DRISAREAFrame { + unsigned int x; + unsigned int y; + unsigned int width; + unsigned int height; + unsigned int fullscreen; +} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr; + +/** + * SAREA definition. + */ +typedef struct _XF86DRISAREA { + /** first thing is always the DRM locking structure */ + drmLock lock; + /** \todo Use readers/writer lock for drawable_lock */ + drmLock drawable_lock; + XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES]; + XF86DRISAREAFrameRec frame; + drm_context_t dummy_context; +} XF86DRISAREARec, *XF86DRISAREAPtr; + +#endif |