/************************************************************************** * * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. * 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 TUNGSTEN GRAPHICS 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. * **************************************************************************/ /** * Code to interface a DRI driver to libEGL. * Note that unlike previous DRI/EGL interfaces, this one is meant to * be used _with_ X. Applications will use eglCreateWindowSurface() * to render into X-created windows. * * This is an EGL driver that, in turn, loads a regular DRI driver. * There are some dependencies on code in libGL, but those could be * removed with some effort. * * Authors: Brian Paul */ #include #include #include #include #include #include "dlfcn.h" #include #include #include "xf86dri.h" #include "glxclient.h" #include "dri_util.h" #include "drm_sarea.h" #define _EGL_PLATFORM_X #include "eglconfig.h" #include "eglcontext.h" #include "egldisplay.h" #include "egldriver.h" #include "eglglobals.h" #include "eglhash.h" #include "egllog.h" #include "eglsurface.h" #include typedef void (*glGetIntegerv_t)(GLenum, GLint *); typedef void (*glBindTexture_t)(GLenum, GLuint); typedef void (*glCopyTexImage2D_t)(GLenum, GLint, GLenum, GLint, GLint, GLint, GLint, GLint); #define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T)) /** subclass of _EGLDriver */ struct xdri_egl_driver { _EGLDriver Base; /**< base class */ const char *dri_driver_name; /**< name of DRI driver to load */ void *dri_driver_handle; /**< returned by dlopen(dri_driver_name) */ __GLXdisplayPrivate *glx_priv; /* XXX we're not actually using these at this time: */ int chipset; int minor; int drmFD; __DRIframebuffer framebuffer; drm_handle_t hSAREA; drmAddress pSAREA; char *busID; drm_magic_t magic; }; /** subclass of _EGLContext */ struct xdri_egl_context { _EGLContext Base; /**< base class */ __DRIcontext driContext; GLint bound_tex_object; }; /** subclass of _EGLSurface */ struct xdri_egl_surface { _EGLSurface Base; /**< base class */ __DRIid driDrawable; /**< DRI surface */ drm_drawable_t hDrawable; }; /** subclass of _EGLConfig */ struct xdri_egl_config { _EGLConfig Base; /**< base class */ const __GLcontextModes *mode; /**< corresponding GLX mode */ }; /** cast wrapper */ static struct xdri_egl_driver * xdri_egl_driver(_EGLDriver *drv) { return (struct xdri_egl_driver *) drv; } /** Map EGLSurface handle to xdri_egl_surface object */ static struct xdri_egl_surface * lookup_surface(EGLSurface surf) { _EGLSurface *surface = _eglLookupSurface(surf); return (struct xdri_egl_surface *) surface; } /** Map EGLContext handle to xdri_egl_context object */ static struct xdri_egl_context * lookup_context(EGLContext c) { _EGLContext *context = _eglLookupContext(c); return (struct xdri_egl_context *) context; } static struct xdri_egl_context * current_context(void) { return (struct xdri_egl_context *) _eglGetCurrentContext(); } /** Map EGLConfig handle to xdri_egl_config object */ static struct xdri_egl_config * lookup_config(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config) { _EGLConfig *conf = _eglLookupConfig(drv, dpy, config); return (struct xdri_egl_config *) conf; } /** Get size of given window */ static Status get_drawable_size(Display *dpy, Drawable d, uint *width, uint *height) { Window root; Status stat; int xpos, ypos; unsigned int w, h, bw, depth; stat = XGetGeometry(dpy, d, &root, &xpos, &ypos, &w, &h, &bw, &depth); *width = w; *height = h; return stat; } /** * Produce a set of EGL configs. * Note that we get the list of GLcontextModes from the GLX library. * This dependency on GLX lib will be removed someday. */ static void create_configs(_EGLDisplay *disp, __GLXdisplayPrivate *glx_priv) { static const EGLint all_apis = (EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT | EGL_OPENVG_BIT | EGL_OPENGL_BIT); __GLXscreenConfigs *scrn = glx_priv->screenConfigs; const __GLcontextModes *m; int id = 1; for (m = scrn->configs; m; m = m->next) { /* EGL requires double-buffered configs */ if (m->doubleBufferMode) { struct xdri_egl_config *config = CALLOC_STRUCT(xdri_egl_config); _eglInitConfig(&config->Base, id++); SET_CONFIG_ATTRIB(&config->Base, EGL_BUFFER_SIZE, m->rgbBits); SET_CONFIG_ATTRIB(&config->Base, EGL_RED_SIZE, m->redBits); SET_CONFIG_ATTRIB(&config->Base, EGL_GREEN_SIZE, m->greenBits); SET_CONFIG_ATTRIB(&config->Base, EGL_BLUE_SIZE, m->blueBits); SET_CONFIG_ATTRIB(&config->Base, EGL_ALPHA_SIZE, m->alphaBits); SET_CONFIG_ATTRIB(&config->Base, EGL_DEPTH_SIZE, m->depthBits); SET_CONFIG_ATTRIB(&config->Base, EGL_STENCIL_SIZE, m->stencilBits); SET_CONFIG_ATTRIB(&config->Base, EGL_SAMPLES, m->samples); SET_CONFIG_ATTRIB(&config->Base, EGL_SAMPLE_BUFFERS, m->sampleBuffers); SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_ID, m->visualID); SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_TYPE, m->visualType); SET_CONFIG_ATTRIB(&config->Base, EGL_CONFORMANT, all_apis); SET_CONFIG_ATTRIB(&config->Base, EGL_RENDERABLE_TYPE, all_apis); /* XXX only window rendering allowed ATM */ SET_CONFIG_ATTRIB(&config->Base, EGL_SURFACE_TYPE, (EGL_WINDOW_BIT | EGL_PBUFFER_BIT)); /* XXX possibly other things to init... */ /* Ptr from EGL config to GLcontextMode. Used in CreateContext(). */ config->mode = m; _eglAddConfig(disp, &config->Base); } } } /** * Called via __DRIinterfaceMethods object */ static __DRIfuncPtr dri_get_proc_address(const char * proc_name) { return NULL; } static void dri_context_modes_destroy(__GLcontextModes *modes) { _eglLog(_EGL_DEBUG, "%s", __FUNCTION__); while (modes) { __GLcontextModes * const next = modes->next; free(modes); modes = next; } } /** * Create a linked list of 'count' GLcontextModes. * These are used during the client/server visual negotiation phase, * then discarded. */ static __GLcontextModes * dri_context_modes_create(unsigned count, size_t minimum_size) { /* This code copied from libGLX, and modified */ const size_t size = (minimum_size > sizeof(__GLcontextModes)) ? minimum_size : sizeof(__GLcontextModes); __GLcontextModes * head = NULL; __GLcontextModes ** next; unsigned i; next = & head; for (i = 0 ; i < count ; i++) { *next = (__GLcontextModes *) calloc(1, size); if (*next == NULL) { dri_context_modes_destroy(head); head = NULL; break; } (*next)->doubleBufferMode = 1; (*next)->visualID = GLX_DONT_CARE; (*next)->visualType = GLX_DONT_CARE; (*next)->visualRating = GLX_NONE; (*next)->transparentPixel = GLX_NONE; (*next)->transparentRed = GLX_DONT_CARE; (*next)->transparentGreen = GLX_DONT_CARE; (*next)->transparentBlue = GLX_DONT_CARE; (*next)->transparentAlpha = GLX_DONT_CARE; (*next)->transparentIndex = GLX_DONT_CARE; (*next)->xRenderable = GLX_DONT_CARE; (*next)->fbconfigID = GLX_DONT_CARE; (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; (*next)->bindToTextureRgb = GLX_DONT_CARE; (*next)->bindToTextureRgba = GLX_DONT_CARE; (*next)->bindToMipmapTexture = GLX_DONT_CARE; (*next)->bindToTextureTargets = 0; (*next)->yInverted = GLX_DONT_CARE; next = & ((*next)->next); } return head; } static __DRIscreen * dri_find_dri_screen(__DRInativeDisplay *ndpy, int scrn) { __GLXdisplayPrivate *priv = __glXInitialize(ndpy); __GLXscreenConfigs *scrnConf = priv->screenConfigs; return &scrnConf->driScreen; } static GLboolean dri_window_exists(__DRInativeDisplay *ndpy, __DRIid draw) { return EGL_TRUE; } static GLboolean dri_create_context(__DRInativeDisplay *ndpy, int screenNum, int configID, void * contextID, drm_context_t * hw_context) { assert(configID >= 0); return XF86DRICreateContextWithConfig(ndpy, screenNum, configID, contextID, hw_context); } static GLboolean dri_destroy_context(__DRInativeDisplay * ndpy, int screen, __DRIid context) { return XF86DRIDestroyContext(ndpy, screen, context); } static GLboolean dri_create_drawable(__DRInativeDisplay * ndpy, int screen, __DRIid drawable, drm_drawable_t * hHWDrawable) { _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__); /* Create DRI drawable for given window ID (drawable) */ if (!XF86DRICreateDrawable(ndpy, screen, drawable, hHWDrawable)) return EGL_FALSE; return EGL_TRUE; } static GLboolean dri_destroy_drawable(__DRInativeDisplay * ndpy, int screen, __DRIid drawable) { _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__); return XF86DRIDestroyDrawable(ndpy, screen, drawable); } static GLboolean dri_get_drawable_info(__DRInativeDisplay *ndpy, 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) { _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__); if (!XF86DRIGetDrawableInfo(ndpy, scrn, draw, index, stamp, x, y, width, height, numClipRects, pClipRects, backX, backY, numBackClipRects, pBackClipRects)) { return EGL_FALSE; } return EGL_TRUE; } /** * Table of functions exported by the loader to the driver. */ static const __DRIinterfaceMethods interface_methods = { dri_get_proc_address, dri_context_modes_create, dri_context_modes_destroy, dri_find_dri_screen, dri_window_exists, dri_create_context, dri_destroy_context, dri_create_drawable, dri_destroy_drawable, dri_get_drawable_info, NULL,/*__eglGetUST,*/ NULL,/*__eglGetMSCRate,*/ }; static EGLBoolean init_drm(struct xdri_egl_driver *xdri_drv, _EGLDisplay *disp) { __DRIversion ddx_version; __DRIversion dri_version; __DRIversion drm_version; drmVersionPtr version; drm_handle_t hFB; int newlyopened; int status; int scrn = DefaultScreen(disp->Xdpy); #if 0 createNewScreen = (PFNCREATENEWSCREENFUNC) dlsym(xdri_drv->dri_driver_handle, createNewScreenName); if (!createNewScreen) { _eglLog(_EGL_WARNING, "XDRI: Couldn't find %s function in the driver.", createNewScreenName); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: Found %s", createNewScreenName); } #endif /* * Get the DRI X extension version. */ dri_version.major = 4; dri_version.minor = 0; dri_version.patch = 0; if (!XF86DRIOpenConnection(disp->Xdpy, scrn, &xdri_drv->hSAREA, &xdri_drv->busID)) { _eglLog(_EGL_WARNING, "XF86DRIOpenConnection failed"); } xdri_drv->drmFD = drmOpenOnce(NULL, xdri_drv->busID, &newlyopened); if (xdri_drv->drmFD < 0) { perror("drmOpenOnce failed: "); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: drmOpenOnce returned %d", xdri_drv->drmFD); } if (drmGetMagic(xdri_drv->drmFD, &xdri_drv->magic)) { perror("drmGetMagic failed: "); return EGL_FALSE; } version = drmGetVersion(xdri_drv->drmFD); if (version) { drm_version.major = version->version_major; drm_version.minor = version->version_minor; drm_version.patch = version->version_patchlevel; drmFreeVersion(version); _eglLog(_EGL_DEBUG, "XDRI: Got DRM version %d.%d.%d", drm_version.major, drm_version.minor, drm_version.patch); } else { drm_version.major = -1; drm_version.minor = -1; drm_version.patch = -1; _eglLog(_EGL_WARNING, "XDRI: drmGetVersion() failed"); return EGL_FALSE; } /* Authenticate w/ server. */ if (!XF86DRIAuthConnection(disp->Xdpy, scrn, xdri_drv->magic)) { _eglLog(_EGL_WARNING, "XDRI: XF86DRIAuthConnection() failed"); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: XF86DRIAuthConnection() success"); } /* Get ddx version. */ { char *driverName; /* * Get device name (like "tdfx") and the ddx version * numbers. We'll check the version in each DRI driver's * "createNewScreen" function. */ if (!XF86DRIGetClientDriverName(disp->Xdpy, scrn, &ddx_version.major, &ddx_version.minor, &ddx_version.patch, &driverName)) { _eglLog(_EGL_WARNING, "XDRI: XF86DRIGetClientDriverName failed"); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: XF86DRIGetClientDriverName returned %s", driverName); } } /* Get framebuffer info. */ { int junk; if (!XF86DRIGetDeviceInfo(disp->Xdpy, scrn, &hFB, &junk, &xdri_drv->framebuffer.size, &xdri_drv->framebuffer.stride, &xdri_drv->framebuffer.dev_priv_size, &xdri_drv->framebuffer.dev_priv)) { _eglLog(_EGL_WARNING, "XDRI: XF86DRIGetDeviceInfo() failed"); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: XF86DRIGetDeviceInfo() success"); } xdri_drv->framebuffer.width = DisplayWidth(disp->Xdpy, scrn); xdri_drv->framebuffer.height = DisplayHeight(disp->Xdpy, scrn); } /* Map the framebuffer region. (this may not be needed) */ status = drmMap(xdri_drv->drmFD, hFB, xdri_drv->framebuffer.size, (drmAddressPtr) &xdri_drv->framebuffer.base); if (status != 0) { _eglLog(_EGL_WARNING, "XDRI: drmMap(framebuffer) failed"); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: drmMap(framebuffer) success"); } /* Map the SAREA region. */ status = drmMap(xdri_drv->drmFD, xdri_drv->hSAREA, SAREA_MAX, &xdri_drv->pSAREA); if (status != 0) { _eglLog(_EGL_WARNING, "XDRI: drmMap(sarea) failed"); return EGL_FALSE; } else { _eglLog(_EGL_DEBUG, "XDRI: drmMap(sarea) success"); } return EGL_TRUE; } /** * Load the DRI driver named by "xdri_drv->dri_driver_name". * Basically, dlopen() the library to set "xdri_drv->dri_driver_handle". * * Later, we'll call dlsym(createNewScreenName) to get a pointer to * the driver's createNewScreen() function which is the bootstrap function. * * \return EGL_TRUE for success, EGL_FALSE for failure */ static EGLBoolean load_dri_driver(struct xdri_egl_driver *xdri_drv) { char filename[100]; int flags = RTLD_NOW; /* try "egl_xxx_dri.so" first */ snprintf(filename, sizeof(filename), "egl_%s.so", xdri_drv->dri_driver_name); _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s)", filename); xdri_drv->dri_driver_handle = dlopen(filename, flags); if (xdri_drv->dri_driver_handle) { _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s) OK", filename); return EGL_TRUE; } else { _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s) fail (%s)", filename, dlerror()); } /* try regular "xxx_dri.so" next */ snprintf(filename, sizeof(filename), "%s.so", xdri_drv->dri_driver_name); _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s)", filename); xdri_drv->dri_driver_handle = dlopen(filename, flags); if (xdri_drv->dri_driver_handle) { _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s) OK", filename); return EGL_TRUE; } _eglLog(_EGL_WARNING, "XDRI Could not open %s (%s)", filename, dlerror()); return EGL_FALSE; } /** * Called via eglInitialize(), xdri_drv->API.Initialize(). */ static EGLBoolean xdri_eglInitialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *minor, EGLint *major) { struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); _EGLDisplay *disp = _eglLookupDisplay(dpy); static char name[100]; _eglLog(_EGL_DEBUG, "XDRI: eglInitialize"); if (!disp->Xdpy) { disp->Xdpy = XOpenDisplay(NULL); if (!disp->Xdpy) { _eglLog(_EGL_WARNING, "XDRI: XOpenDisplay failed"); return EGL_FALSE; } } #if 0 /* choose the DRI driver to load */ xdri_drv->dri_driver_name = _eglChooseDRMDriver(0); if (!load_dri_driver(xdri_drv)) return EGL_FALSE; #else (void) load_dri_driver; #endif #if 0 if (!init_drm(xdri_drv, disp)) return EGL_FALSE; #else (void) init_drm; #endif /* * NOTE: this call to __glXInitialize() bootstraps the whole GLX/DRI * interface, loads the DRI driver, etc. * This replaces the load_dri_driver() and init_drm() code above. */ xdri_drv->glx_priv = __glXInitialize(disp->Xdpy); create_configs(disp, xdri_drv->glx_priv); xdri_drv->Base.Initialized = EGL_TRUE; if (xdri_drv->dri_driver_name) snprintf(name, sizeof(name), "X/DRI:%s", xdri_drv->dri_driver_name); else snprintf(name, sizeof(name), "X/DRI"); xdri_drv->Base.Name = name; /* we're supporting EGL 1.4 */ *minor = 1; *major = 4; return EGL_TRUE; } /* * Do some clean-up that normally occurs in XCloseDisplay(). * We do this here because we're about to unload a dynamic library * that has added some per-display extension data and callbacks. * If we don't do this here we'll crash in XCloseDisplay() because it'll * try to call functions that went away when the driver library was unloaded. */ static void FreeDisplayExt(Display *dpy) { _XExtension *ext, *next; for (ext = dpy->ext_procs; ext; ext = next) { next = ext->next; if (ext->close_display) { ext->close_display(dpy, &ext->codes); ext->close_display = NULL; } if (ext->name) Xfree(ext->name); Xfree(ext); } dpy->ext_procs = NULL; _XFreeExtData (dpy->ext_data); dpy->ext_data = NULL; } /** * Called via eglTerminate(), drv->API.Terminate(). */ static EGLBoolean xdri_eglTerminate(_EGLDriver *drv, EGLDisplay dpy) { struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); _EGLDisplay *disp = _eglLookupDisplay(dpy); _eglLog(_EGL_DEBUG, "XDRI: eglTerminate"); _eglLog(_EGL_DEBUG, "XDRI: Closing %s", xdri_drv->dri_driver_name); FreeDisplayExt(disp->Xdpy); #if 0 /* this causes a segfault for some reason */ dlclose(xdri_drv->dri_driver_handle); #endif xdri_drv->dri_driver_handle = NULL; free((void*) xdri_drv->dri_driver_name); return EGL_TRUE; } /* * Called from eglGetProcAddress() via drv->API.GetProcAddress(). */ static _EGLProc xdri_eglGetProcAddress(const char *procname) { #if 0 _EGLDriver *drv = NULL; struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); /*_EGLDisplay *disp = _eglLookupDisplay(dpy);*/ _EGLProc *proc = xdri_drv->driScreen.getProcAddress(procname); return proc; #elif 1 /* This is a bit of a hack to get at the gallium/Mesa state tracker * function st_get_proc_address(). This will probably change at * some point. */ _EGLProc (*st_get_proc_addr)(const char *procname); st_get_proc_addr = dlsym(NULL, "st_get_proc_address"); if (st_get_proc_addr) { return st_get_proc_addr(procname); } return NULL; #else return NULL; #endif } /** * Called via eglCreateContext(), drv->API.CreateContext(). */ static EGLContext xdri_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list) { _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_config *xdri_config = lookup_config(drv, dpy, config); void *shared = NULL; int renderType = GLX_RGBA_BIT; struct xdri_egl_context *xdri_ctx = CALLOC_STRUCT(xdri_egl_context); if (!xdri_ctx) return EGL_NO_CONTEXT; if (!_eglInitContext(drv, dpy, &xdri_ctx->Base, config, attrib_list)) { free(xdri_ctx); return EGL_NO_CONTEXT; } assert(xdri_config); { struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); __GLXscreenConfigs *scrnConf = xdri_drv->glx_priv->screenConfigs; xdri_ctx->driContext.private = scrnConf->driScreen.createNewContext(disp->Xdpy, xdri_config->mode, renderType, shared, &xdri_ctx->driContext); } if (!xdri_ctx->driContext.private) { _eglLog(_EGL_DEBUG, "driScreen.createNewContext failed"); free(xdri_ctx); return EGL_NO_CONTEXT; } xdri_ctx->driContext.mode = xdri_config->mode; return _eglGetContextHandle(&xdri_ctx->Base); } /** * Called via eglMakeCurrent(), drv->API.MakeCurrent(). */ static EGLBoolean xdri_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface d, EGLSurface r, EGLContext context) { _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_context *xdri_ctx = lookup_context(context); struct xdri_egl_surface *xdri_draw = lookup_surface(d); struct xdri_egl_surface *xdri_read = lookup_surface(r); __DRIid draw = xdri_draw ? xdri_draw->driDrawable : 0; __DRIid read = xdri_read ? xdri_read->driDrawable : 0; int scrn = DefaultScreen(disp->Xdpy); if (!_eglMakeCurrent(drv, dpy, d, r, context)) return EGL_FALSE; if (xdri_ctx && !xdri_ctx->driContext.bindContext(disp->Xdpy, scrn, draw, read, &xdri_ctx->driContext)) { return EGL_FALSE; } return EGL_TRUE; } /** * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). */ static EGLSurface xdri_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list) { _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_surface *xdri_surf; int scrn = DefaultScreen(disp->Xdpy); uint width, height; xdri_surf = CALLOC_STRUCT(xdri_egl_surface); if (!xdri_surf) return EGL_NO_SURFACE; if (!_eglInitSurface(drv, dpy, &xdri_surf->Base, EGL_WINDOW_BIT, config, attrib_list)) { free(xdri_surf); return EGL_FALSE; } if (!XF86DRICreateDrawable(disp->Xdpy, scrn, window, &xdri_surf->hDrawable)) { free(xdri_surf); return EGL_FALSE; } xdri_surf->driDrawable = window; _eglSaveSurface(&xdri_surf->Base); get_drawable_size(disp->Xdpy, window, &width, &height); xdri_surf->Base.Width = width; xdri_surf->Base.Height = height; _eglLog(_EGL_DEBUG, "XDRI: CreateWindowSurface win 0x%x handle %d hDrawable %d", (int) window, _eglGetSurfaceHandle(&xdri_surf->Base), (int) xdri_surf->hDrawable); return _eglGetSurfaceHandle(&xdri_surf->Base); } /** * Called via eglCreatePbufferSurface(), drv->API.CreatePbufferSurface(). */ static EGLSurface xdri_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) { _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_surface *xdri_surf; struct xdri_egl_config *xdri_config = lookup_config(drv, dpy, config); int scrn = DefaultScreen(disp->Xdpy); Window window; xdri_surf = CALLOC_STRUCT(xdri_egl_surface); if (!xdri_surf) return EGL_NO_SURFACE; if (!_eglInitSurface(drv, dpy, &xdri_surf->Base, EGL_PBUFFER_BIT, config, attrib_list)) { free(xdri_surf); return EGL_FALSE; } /* Create a dummy X window */ { Window root = RootWindow(disp->Xdpy, scrn); XSetWindowAttributes attr; XVisualInfo *visInfo, visTemplate; unsigned mask; int nvis; visTemplate.visualid = xdri_config->mode->visualID; visInfo = XGetVisualInfo(disp->Xdpy, VisualIDMask, &visTemplate, &nvis); if (!visInfo) { return EGL_NO_SURFACE; } attr.background_pixel = 0; attr.border_pixel = 0; attr.colormap = XCreateColormap(disp->Xdpy, root, visInfo->visual, AllocNone); attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; window = XCreateWindow(disp->Xdpy, root, 0, 0, xdri_surf->Base.Width, xdri_surf->Base.Height, 0, visInfo->depth, InputOutput, visInfo->visual, mask, &attr); /*XMapWindow(disp->Xdpy, window);*/ XFree(visInfo); /* set hints and properties */ /* sizehints.width = xdri_surf->Base.Width; sizehints.height = xdri_surf->Base.Height; sizehints.flags = USPosition; XSetNormalHints(disp->Xdpy, window, &sizehints); */ } if (!XF86DRICreateDrawable(disp->Xdpy, scrn, window, &xdri_surf->hDrawable)) { free(xdri_surf); return EGL_FALSE; } xdri_surf->driDrawable = window; _eglSaveSurface(&xdri_surf->Base); _eglLog(_EGL_DEBUG, "XDRI: CreatePbufferSurface handle %d hDrawable %d", _eglGetSurfaceHandle(&xdri_surf->Base), (int) xdri_surf->hDrawable); return _eglGetSurfaceHandle(&xdri_surf->Base); } static EGLBoolean xdri_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface) { struct xdri_egl_surface *xdri_surf = lookup_surface(surface); if (xdri_surf) { _eglHashRemove(_eglGlobal.Surfaces, (EGLuint) surface); if (xdri_surf->Base.IsBound) { xdri_surf->Base.DeletePending = EGL_TRUE; } else { /* st_unreference_framebuffer(&surf->Framebuffer); */ free(xdri_surf); } return EGL_TRUE; } else { _eglError(EGL_BAD_SURFACE, "eglDestroySurface"); return EGL_FALSE; } } static EGLBoolean xdri_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer) { typedef int (*bind_teximage)(__DRInativeDisplay *dpy, __DRIid surface, __DRIscreen *psc, int buffer, int target, int format, int level, int mipmap); bind_teximage egl_dri_bind_teximage; _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_context *xdri_ctx = current_context(); struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); struct xdri_egl_surface *xdri_surf = lookup_surface(surface); __DRIid dri_surf = xdri_surf ? xdri_surf->driDrawable : 0; __GLXscreenConfigs *scrnConf = xdri_drv->glx_priv->screenConfigs; __DRIscreen *psc = &scrnConf->driScreen; /* this call just does error checking */ if (!_eglBindTexImage(drv, dpy, surface, buffer)) { return EGL_FALSE; } egl_dri_bind_teximage = (bind_teximage) dlsym(NULL, "egl_dri_bind_teximage"); if (egl_dri_bind_teximage) { return egl_dri_bind_teximage(disp->Xdpy, dri_surf, psc, buffer, xdri_surf->Base.TextureTarget, xdri_surf->Base.TextureFormat, xdri_surf->Base.MipmapLevel, xdri_surf->Base.MipmapTexture); } else { /* fallback path based on glCopyTexImage() */ /* Get/save currently bound 2D texobj name */ glGetIntegerv_t glGetIntegerv_func = (glGetIntegerv_t) dlsym(NULL, "glGetIntegerv"); GLint curTexObj = 0; if (glGetIntegerv_func) { (*glGetIntegerv_func)(GL_TEXTURE_BINDING_2D, &curTexObj); } xdri_ctx->bound_tex_object = curTexObj; } return EGL_FALSE; } static EGLBoolean xdri_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer) { typedef int (*release_teximage)(__DRInativeDisplay *dpy, __DRIid surface, __DRIscreen *psc, int buffer, int target, int format, int level, int mipmap); release_teximage egl_dri_release_teximage; _EGLDisplay *disp = _eglLookupDisplay(dpy); struct xdri_egl_context *xdri_ctx = current_context(); struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); struct xdri_egl_surface *xdri_surf = lookup_surface(surface); __DRIid dri_surf = xdri_surf ? xdri_surf->driDrawable : 0; __GLXscreenConfigs *scrnConf = xdri_drv->glx_priv->screenConfigs; __DRIscreen *psc = &scrnConf->driScreen; /* this call just does error checking */ if (!_eglReleaseTexImage(drv, dpy, surface, buffer)) { return EGL_FALSE; } egl_dri_release_teximage = (release_teximage) dlsym(NULL, "egl_dri_release_teximage"); if (egl_dri_release_teximage) { return egl_dri_release_teximage(disp->Xdpy, dri_surf, psc, buffer, xdri_surf->Base.TextureTarget, xdri_surf->Base.TextureFormat, xdri_surf->Base.MipmapLevel, xdri_surf->Base.MipmapTexture); } else { /* fallback path based on glCopyTexImage() */ glGetIntegerv_t glGetIntegerv_func = (glGetIntegerv_t) dlsym(NULL, "glGetIntegerv"); glBindTexture_t glBindTexture_func = (glBindTexture_t) dlsym(NULL, "glBindTexture"); glCopyTexImage2D_t glCopyTexImage2D_func = (glCopyTexImage2D_t) dlsym(NULL, "glCopyTexImage2D"); GLint curTexObj; GLenum intFormat; GLint level, width, height; if (xdri_surf->Base.TextureFormat == EGL_TEXTURE_RGBA) intFormat = GL_RGBA; else intFormat = GL_RGB; level = xdri_surf->Base.MipmapLevel; width = xdri_surf->Base.Width >> level; height = xdri_surf->Base.Height >> level; if (width > 0 && height > 0 && glGetIntegerv_func && glBindTexture_func && glCopyTexImage2D_func) { glGetIntegerv_func(GL_TEXTURE_BINDING_2D, &curTexObj); /* restore texobj from time of eglBindTexImage() call */ if (curTexObj != xdri_ctx->bound_tex_object) glBindTexture_func(GL_TEXTURE_2D, xdri_ctx->bound_tex_object); /* copy pbuffer image to texture */ glCopyTexImage2D_func(GL_TEXTURE_2D, level, intFormat, 0, 0, width, height, 0); /* restore current texture */ if (curTexObj != xdri_ctx->bound_tex_object) glBindTexture_func(GL_TEXTURE_2D, curTexObj); } xdri_ctx->bound_tex_object = -1; } return EGL_FALSE; } static EGLBoolean xdri_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) { _EGLDisplay *disp = _eglLookupDisplay(dpy); _eglLog(_EGL_DEBUG, "XDRI: EGL SwapBuffers"); /* error checking step: */ if (!_eglSwapBuffers(drv, dpy, draw)) return EGL_FALSE; { struct xdri_egl_surface *xdri_surf = lookup_surface(draw); struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv); __GLXscreenConfigs *scrnConf = xdri_drv->glx_priv->screenConfigs; __DRIscreen *psc = &scrnConf->driScreen; __DRIdrawable * const pdraw = psc->getDrawable(disp->Xdpy, xdri_surf->driDrawable, psc->private); if (pdraw) pdraw->swapBuffers(disp->Xdpy, pdraw->private); else _eglLog(_EGL_WARNING, "pdraw is null in SwapBuffers"); } return EGL_TRUE; } /** * This is the main entrypoint into the driver, called by libEGL. * Create a new _EGLDriver object and init its dispatch table. */ _EGLDriver * _eglMain(_EGLDisplay *disp, const char *args) { struct xdri_egl_driver *xdri_drv = CALLOC_STRUCT(xdri_egl_driver); if (!xdri_drv) return NULL; /* Tell libGL to prefer the EGL drivers over regular DRI drivers */ __glXPreferEGL(1); _eglInitDriverFallbacks(&xdri_drv->Base); xdri_drv->Base.API.Initialize = xdri_eglInitialize; xdri_drv->Base.API.Terminate = xdri_eglTerminate; xdri_drv->Base.API.GetProcAddress = xdri_eglGetProcAddress; xdri_drv->Base.API.CreateContext = xdri_eglCreateContext; xdri_drv->Base.API.MakeCurrent = xdri_eglMakeCurrent; xdri_drv->Base.API.CreateWindowSurface = xdri_eglCreateWindowSurface; xdri_drv->Base.API.CreatePbufferSurface = xdri_eglCreatePbufferSurface; xdri_drv->Base.API.DestroySurface = xdri_eglDestroySurface; xdri_drv->Base.API.BindTexImage = xdri_eglBindTexImage; xdri_drv->Base.API.ReleaseTexImage = xdri_eglReleaseTexImage; xdri_drv->Base.API.SwapBuffers = xdri_eglSwapBuffers; xdri_drv->Base.ClientAPIsMask = (EGL_OPENGL_BIT | EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT | EGL_OPENVG_BIT); xdri_drv->Base.Name = "X/DRI"; _eglLog(_EGL_DEBUG, "XDRI: main(%s)", args); return &xdri_drv->Base; }