/* * Copyright © 2008 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Soft- * ware"), to deal in the Software without restriction, including without * limitation the rights to use, copy, modify, merge, publish, distribute, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, provided that the above copyright * notice(s) and this permission notice appear in all copies of the Soft- * ware and that both the above copyright notice(s) and this permission * notice appear in supporting documentation. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- * MANCE OF THIS SOFTWARE. * * Except as contained in this notice, the name of a copyright holder shall * not be used in advertising or otherwise to promote the sale, use or * other dealings in this Software without prior written authorization of * the copyright holder. * * Authors: * Kristian Høgsberg (krh@redhat.com) */ #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) #include #include #include #include "glapi.h" #include "glxclient.h" #include #include "xf86dri.h" #include #include #include #include #include #include "xf86drm.h" #include "dri2.h" #include "dri_common.h" /* From xmlpool/options.h, user exposed so should be stable */ #define DRI_CONF_VBLANK_NEVER 0 #define DRI_CONF_VBLANK_DEF_INTERVAL_0 1 #define DRI_CONF_VBLANK_DEF_INTERVAL_1 2 #define DRI_CONF_VBLANK_ALWAYS_SYNC 3 #undef DRI2_MINOR #define DRI2_MINOR 1 struct dri2_display { __GLXDRIdisplay base; /* ** XFree86-DRI version information */ int driMajor; int driMinor; int driPatch; int swapAvailable; int invalidateAvailable; __glxHashTable *dri2Hash; const __DRIextension *loader_extensions[4]; }; struct dri2_screen { struct glx_screen base; __DRIscreen *driScreen; __GLXDRIscreen vtable; const __DRIdri2Extension *dri2; const __DRIcoreExtension *core; const __DRI2flushExtension *f; const __DRI2configQueryExtension *config; const __DRItexBufferExtension *texBuffer; const __DRIconfig **driver_configs; void *driver; int fd; }; struct dri2_context { struct glx_context base; __DRIcontext *driContext; }; struct dri2_drawable { __GLXDRIdrawable base; __DRIdrawable *driDrawable; __DRIbuffer buffers[5]; int bufferCount; int width, height; int have_back; int have_fake_front; int swap_interval; }; static const struct glx_context_vtable dri2_context_vtable; static void dri2_destroy_context(struct glx_context *context) { struct dri2_context *pcp = (struct dri2_context *) context; struct dri2_screen *psc = (struct dri2_screen *) context->psc; driReleaseDrawables(&pcp->base); if (context->xid) glx_send_destroy_context(psc->base.dpy, context->xid); if (context->extensions) XFree((char *) context->extensions); (*psc->core->destroyContext) (pcp->driContext); Xfree(pcp); } static Bool dri2_bind_context(struct glx_context *context, struct glx_context *old, GLXDrawable draw, GLXDrawable read) { struct dri2_context *pcp = (struct dri2_context *) context; struct dri2_screen *psc = (struct dri2_screen *) pcp->base.psc; struct dri2_drawable *pdraw, *pread; struct dri2_display *pdp; pdraw = (struct dri2_drawable *) driFetchDrawable(context, draw); pread = (struct dri2_drawable *) driFetchDrawable(context, read); driReleaseDrawables(&pcp->base); if (pdraw == NULL || pread == NULL) return GLXBadDrawable; if (!(*psc->core->bindContext) (pcp->driContext, pdraw->driDrawable, pread->driDrawable)) return GLXBadContext; /* If the server doesn't send invalidate events, we may miss a * resize before the rendering starts. Invalidate the buffers now * so the driver will recheck before rendering starts. */ pdp = (struct dri2_display *) psc->base.display; if (!pdp->invalidateAvailable) { dri2InvalidateBuffers(psc->base.dpy, pdraw->base.xDrawable); if (pread != pdraw) dri2InvalidateBuffers(psc->base.dpy, pread->base.xDrawable); } return Success; } static void dri2_unbind_context(struct glx_context *context, struct glx_context *new) { struct dri2_context *pcp = (struct dri2_context *) context; struct dri2_screen *psc = (struct dri2_screen *) pcp->base.psc; (*psc->core->unbindContext) (pcp->driContext); } static struct glx_context * dri2_create_context(struct glx_screen *base, struct glx_config *config_base, struct glx_context *shareList, int renderType) { struct dri2_context *pcp, *pcp_shared; struct dri2_screen *psc = (struct dri2_screen *) base; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; __DRIcontext *shared = NULL; if (shareList) { pcp_shared = (struct dri2_context *) shareList; shared = pcp_shared->driContext; } pcp = Xmalloc(sizeof *pcp); if (pcp == NULL) return NULL; memset(pcp, 0, sizeof *pcp); if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { Xfree(pcp); return NULL; } pcp->driContext = (*psc->dri2->createNewContext) (psc->driScreen, config->driConfig, shared, pcp); if (pcp->driContext == NULL) { Xfree(pcp); return NULL; } pcp->base.vtable = &dri2_context_vtable; return &pcp->base; } static void dri2DestroyDrawable(__GLXDRIdrawable *base) { struct dri2_screen *psc = (struct dri2_screen *) base->psc; struct dri2_drawable *pdraw = (struct dri2_drawable *) base; struct glx_display *dpyPriv = psc->base.display; struct dri2_display *pdp = (struct dri2_display *)dpyPriv->dri2Display; __glxHashDelete(pdp->dri2Hash, pdraw->base.xDrawable); (*psc->core->destroyDrawable) (pdraw->driDrawable); /* If it's a GLX 1.3 drawables, we can destroy the DRI2 drawable * now, as the application explicitly asked to destroy the GLX * drawable. Otherwise, for legacy drawables, we let the DRI2 * drawable linger on the server, since there's no good way of * knowing when the application is done with it. The server will * destroy the DRI2 drawable when it destroys the X drawable or the * client exits anyway. */ if (pdraw->base.xDrawable != pdraw->base.drawable) DRI2DestroyDrawable(psc->base.dpy, pdraw->base.xDrawable); Xfree(pdraw); } static __GLXDRIdrawable * dri2CreateDrawable(struct glx_screen *base, XID xDrawable, GLXDrawable drawable, struct glx_config *config_base) { struct dri2_drawable *pdraw; struct dri2_screen *psc = (struct dri2_screen *) base; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; struct glx_display *dpyPriv; struct dri2_display *pdp; GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; pdraw = Xmalloc(sizeof(*pdraw)); if (!pdraw) return NULL; memset(pdraw, 0, sizeof *pdraw); pdraw->base.destroyDrawable = dri2DestroyDrawable; pdraw->base.xDrawable = xDrawable; pdraw->base.drawable = drawable; pdraw->base.psc = &psc->base; pdraw->bufferCount = 0; pdraw->swap_interval = 1; /* default may be overridden below */ pdraw->have_back = 0; if (psc->config) psc->config->configQueryi(psc->driScreen, "vblank_mode", &vblank_mode); switch (vblank_mode) { case DRI_CONF_VBLANK_NEVER: case DRI_CONF_VBLANK_DEF_INTERVAL_0: pdraw->swap_interval = 0; break; case DRI_CONF_VBLANK_DEF_INTERVAL_1: case DRI_CONF_VBLANK_ALWAYS_SYNC: default: pdraw->swap_interval = 1; break; } DRI2CreateDrawable(psc->base.dpy, xDrawable); dpyPriv = __glXInitialize(psc->base.dpy); pdp = (struct dri2_display *)dpyPriv->dri2Display;; /* Create a new drawable */ pdraw->driDrawable = (*psc->dri2->createNewDrawable) (psc->driScreen, config->driConfig, pdraw); if (!pdraw->driDrawable) { DRI2DestroyDrawable(psc->base.dpy, xDrawable); Xfree(pdraw); return NULL; } if (__glxHashInsert(pdp->dri2Hash, xDrawable, pdraw)) { (*psc->core->destroyDrawable) (pdraw->driDrawable); DRI2DestroyDrawable(psc->base.dpy, xDrawable); Xfree(pdraw); return None; } #ifdef X_DRI2SwapInterval /* * Make sure server has the same swap interval we do for the new * drawable. */ if (pdp->swapAvailable) DRI2SwapInterval(psc->base.dpy, xDrawable, pdraw->swap_interval); #endif return &pdraw->base; } #ifdef X_DRI2GetMSC static int dri2DrawableGetMSC(struct glx_screen *psc, __GLXDRIdrawable *pdraw, int64_t *ust, int64_t *msc, int64_t *sbc) { CARD64 dri2_ust, dri2_msc, dri2_sbc; int ret; ret = DRI2GetMSC(psc->dpy, pdraw->xDrawable, &dri2_ust, &dri2_msc, &dri2_sbc); *ust = dri2_ust; *msc = dri2_msc; *sbc = dri2_sbc; return ret; } #endif #ifdef X_DRI2WaitMSC static int dri2WaitForMSC(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc) { CARD64 dri2_ust, dri2_msc, dri2_sbc; int ret; ret = DRI2WaitMSC(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor, remainder, &dri2_ust, &dri2_msc, &dri2_sbc); *ust = dri2_ust; *msc = dri2_msc; *sbc = dri2_sbc; return ret; } static int dri2WaitForSBC(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, int64_t *msc, int64_t *sbc) { CARD64 dri2_ust, dri2_msc, dri2_sbc; int ret; ret = DRI2WaitSBC(pdraw->psc->dpy, pdraw->xDrawable, target_sbc, &dri2_ust, &dri2_msc, &dri2_sbc); *ust = dri2_ust; *msc = dri2_msc; *sbc = dri2_sbc; return ret; } #endif /* X_DRI2WaitMSC */ static void dri2CopySubBuffer(__GLXDRIdrawable *pdraw, int x, int y, int width, int height) { struct dri2_drawable *priv = (struct dri2_drawable *) pdraw; struct dri2_screen *psc = (struct dri2_screen *) pdraw->psc; XRectangle xrect; XserverRegion region; /* Check we have the right attachments */ if (!priv->have_back) return; xrect.x = x; xrect.y = priv->height - y - height; xrect.width = width; xrect.height = height; #ifdef __DRI2_FLUSH if (psc->f) (*psc->f->flush) (priv->driDrawable); #endif region = XFixesCreateRegion(psc->base.dpy, &xrect, 1); DRI2CopyRegion(psc->base.dpy, pdraw->xDrawable, region, DRI2BufferFrontLeft, DRI2BufferBackLeft); /* Refresh the fake front (if present) after we just damaged the real * front. */ if (priv->have_fake_front) DRI2CopyRegion(psc->base.dpy, pdraw->xDrawable, region, DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); XFixesDestroyRegion(psc->base.dpy, region); } static void dri2_copy_drawable(struct dri2_drawable *priv, int dest, int src) { XRectangle xrect; XserverRegion region; struct dri2_screen *psc = (struct dri2_screen *) priv->base.psc; xrect.x = 0; xrect.y = 0; xrect.width = priv->width; xrect.height = priv->height; #ifdef __DRI2_FLUSH if (psc->f) (*psc->f->flush) (priv->driDrawable); #endif region = XFixesCreateRegion(psc->base.dpy, &xrect, 1); DRI2CopyRegion(psc->base.dpy, priv->base.xDrawable, region, dest, src); XFixesDestroyRegion(psc->base.dpy, region); } static void dri2_wait_x(struct glx_context *gc) { struct dri2_drawable *priv = (struct dri2_drawable *) GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); if (priv == NULL || !priv->have_fake_front) return; dri2_copy_drawable(priv, DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); } static void dri2_wait_gl(struct glx_context *gc) { struct dri2_drawable *priv = (struct dri2_drawable *) GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); if (priv == NULL || !priv->have_fake_front) return; dri2_copy_drawable(priv, DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); } static void dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate) { struct glx_display *priv; struct dri2_display *pdp; struct glx_context *gc; struct dri2_drawable *pdraw = loaderPrivate; if (!pdraw) return; if (!pdraw->base.psc) return; priv = __glXInitialize(pdraw->base.psc->dpy); pdp = (struct dri2_display *) priv->dri2Display; gc = __glXGetCurrentContext(); /* Old servers don't send invalidate events */ if (!pdp->invalidateAvailable) dri2InvalidateBuffers(priv->dpy, pdraw->base.xDrawable); dri2_wait_gl(gc); } static void dri2DestroyScreen(struct glx_screen *base) { struct dri2_screen *psc = (struct dri2_screen *) base; /* Free the direct rendering per screen data */ (*psc->core->destroyScreen) (psc->driScreen); driDestroyConfigs(psc->driver_configs); close(psc->fd); Xfree(psc); } /** * Process list of buffer received from the server * * Processes the list of buffers received in a reply from the server to either * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat. */ static void process_buffers(struct dri2_drawable * pdraw, DRI2Buffer * buffers, unsigned count) { int i; pdraw->bufferCount = count; pdraw->have_fake_front = 0; pdraw->have_back = 0; /* This assumes the DRI2 buffer attachment tokens matches the * __DRIbuffer tokens. */ for (i = 0; i < count; i++) { pdraw->buffers[i].attachment = buffers[i].attachment; pdraw->buffers[i].name = buffers[i].name; pdraw->buffers[i].pitch = buffers[i].pitch; pdraw->buffers[i].cpp = buffers[i].cpp; pdraw->buffers[i].flags = buffers[i].flags; if (pdraw->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) pdraw->have_fake_front = 1; if (pdraw->buffers[i].attachment == __DRI_BUFFER_BACK_LEFT) pdraw->have_back = 1; } } unsigned dri2GetSwapEventType(Display* dpy, XID drawable) { struct glx_display *glx_dpy = __glXInitialize(dpy); __GLXDRIdrawable *pdraw; pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, drawable); if (!pdraw || !(pdraw->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK)) return 0; return glx_dpy->codes->first_event + GLX_BufferSwapComplete; } static int64_t dri2SwapBuffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, int64_t remainder) { struct dri2_drawable *priv = (struct dri2_drawable *) pdraw; struct glx_display *dpyPriv = __glXInitialize(priv->base.psc->dpy); struct dri2_screen *psc = (struct dri2_screen *) priv->base.psc; struct dri2_display *pdp = (struct dri2_display *)dpyPriv->dri2Display; CARD64 ret = 0; /* Check we have the right attachments */ if (!priv->have_back) return ret; /* Old servers can't handle swapbuffers */ if (!pdp->swapAvailable) { dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height); } else { #ifdef X_DRI2SwapBuffers #ifdef __DRI2_FLUSH if (psc->f) { struct glx_context *gc = __glXGetCurrentContext(); if (gc) { (*psc->f->flush)(priv->driDrawable); } } #endif DRI2SwapBuffers(psc->base.dpy, pdraw->xDrawable, target_msc, divisor, remainder, &ret); #endif } /* Old servers don't send invalidate events */ if (!pdp->invalidateAvailable) dri2InvalidateBuffers(dpyPriv->dpy, pdraw->xDrawable); return ret; } static __DRIbuffer * dri2GetBuffers(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate) { struct dri2_drawable *pdraw = loaderPrivate; DRI2Buffer *buffers; buffers = DRI2GetBuffers(pdraw->base.psc->dpy, pdraw->base.xDrawable, width, height, attachments, count, out_count); if (buffers == NULL) return NULL; pdraw->width = *width; pdraw->height = *height; process_buffers(pdraw, buffers, *out_count); Xfree(buffers); return pdraw->buffers; } static __DRIbuffer * dri2GetBuffersWithFormat(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate) { struct dri2_drawable *pdraw = loaderPrivate; DRI2Buffer *buffers; buffers = DRI2GetBuffersWithFormat(pdraw->base.psc->dpy, pdraw->base.xDrawable, width, height, attachments, count, out_count); if (buffers == NULL) return NULL; pdraw->width = *width; pdraw->height = *height; process_buffers(pdraw, buffers, *out_count); Xfree(buffers); return pdraw->buffers; } #ifdef X_DRI2SwapInterval static int dri2SetSwapInterval(__GLXDRIdrawable *pdraw, int interval) { struct dri2_drawable *priv = (struct dri2_drawable *) pdraw; GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; struct dri2_screen *psc = (struct dri2_screen *) priv->base.psc; if (psc->config) psc->config->configQueryi(psc->driScreen, "vblank_mode", &vblank_mode); switch (vblank_mode) { case DRI_CONF_VBLANK_NEVER: return GLX_BAD_VALUE; case DRI_CONF_VBLANK_ALWAYS_SYNC: if (interval <= 0) return GLX_BAD_VALUE; break; default: break; } DRI2SwapInterval(priv->base.psc->dpy, priv->base.xDrawable, interval); priv->swap_interval = interval; return 0; } static int dri2GetSwapInterval(__GLXDRIdrawable *pdraw) { struct dri2_drawable *priv = (struct dri2_drawable *) pdraw; return priv->swap_interval; } #endif /* X_DRI2SwapInterval */ static const __DRIdri2LoaderExtension dri2LoaderExtension = { {__DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION}, dri2GetBuffers, dri2FlushFrontBuffer, dri2GetBuffersWithFormat, }; static const __DRIdri2LoaderExtension dri2LoaderExtension_old = { {__DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION}, dri2GetBuffers, dri2FlushFrontBuffer, NULL, }; #ifdef __DRI_USE_INVALIDATE static const __DRIuseInvalidateExtension dri2UseInvalidate = { { __DRI_USE_INVALIDATE, __DRI_USE_INVALIDATE_VERSION } }; #endif _X_HIDDEN void dri2InvalidateBuffers(Display *dpy, XID drawable) { __GLXDRIdrawable *pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, drawable); struct dri2_screen *psc; struct dri2_drawable *pdp = (struct dri2_drawable *) pdraw; if (!pdraw) return; psc = (struct dri2_screen *) pdraw->psc; #if __DRI2_FLUSH_VERSION >= 3 if (pdraw && psc->f && psc->f->base.version >= 3 && psc->f->invalidate) psc->f->invalidate(pdp->driDrawable); #endif } static void dri2_bind_tex_image(Display * dpy, GLXDrawable drawable, int buffer, const int *attrib_list) { struct glx_context *gc = __glXGetCurrentContext(); struct dri2_context *pcp = (struct dri2_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct glx_display *dpyPriv = __glXInitialize(dpy); struct dri2_drawable *pdraw = (struct dri2_drawable *) base; struct dri2_display *pdp = (struct dri2_display *) dpyPriv->dri2Display; struct dri2_screen *psc; if (pdraw != NULL) { psc = (struct dri2_screen *) base->psc; #if __DRI2_FLUSH_VERSION >= 3 if (!pdp->invalidateAvailable && psc->f && psc->f->base.version >= 3 && psc->f->invalidate) psc->f->invalidate(pdraw->driDrawable); #endif if (psc->texBuffer->base.version >= 2 && psc->texBuffer->setTexBuffer2 != NULL) { (*psc->texBuffer->setTexBuffer2) (pcp->driContext, pdraw->base.textureTarget, pdraw->base.textureFormat, pdraw->driDrawable); } else { (*psc->texBuffer->setTexBuffer) (pcp->driContext, pdraw->base.textureTarget, pdraw->driDrawable); } } } static void dri2_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) { #if __DRI_TEX_BUFFER_VERSION >= 3 struct glx_context *gc = __glXGetCurrentContext(); struct dri2_context *pcp = (struct dri2_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct glx_display *dpyPriv = __glXInitialize(dpy); struct dri2_drawable *pdraw = (struct dri2_drawable *) base; struct dri2_display *pdp = (struct dri2_display *) dpyPriv->dri2Display; struct dri2_screen *psc; if (pdraw != NULL) { psc = (struct dri2_screen *) base->psc; if (psc->texBuffer->base.version >= 3 && psc->texBuffer->releaseTexBuffer != NULL) { (*psc->texBuffer->releaseTexBuffer) (pcp->driContext, pdraw->base.textureTarget, pdraw->driDrawable); } } #endif } static const struct glx_context_vtable dri2_context_vtable = { dri2_destroy_context, dri2_bind_context, dri2_unbind_context, dri2_wait_gl, dri2_wait_x, DRI_glXUseXFont, dri2_bind_tex_image, dri2_release_tex_image, NULL, /* get_proc_address */ }; static void dri2BindExtensions(struct dri2_screen *psc, const __DRIextension **extensions) { int i; __glXEnableDirectExtension(&psc->base, "GLX_SGI_video_sync"); __glXEnableDirectExtension(&psc->base, "GLX_SGI_swap_control"); __glXEnableDirectExtension(&psc->base, "GLX_MESA_swap_control"); __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read"); /* FIXME: if DRI2 version supports it... */ __glXEnableDirectExtension(&psc->base, "INTEL_swap_event"); for (i = 0; extensions[i]; i++) { if ((strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) { psc->texBuffer = (__DRItexBufferExtension *) extensions[i]; __glXEnableDirectExtension(&psc->base, "GLX_EXT_texture_from_pixmap"); } if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0)) { psc->f = (__DRI2flushExtension *) extensions[i]; /* internal driver extension, no GL extension exposed */ } if ((strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0)) psc->config = (__DRI2configQueryExtension *) extensions[i]; } } static const struct glx_screen_vtable dri2_screen_vtable = { dri2_create_context }; static struct glx_screen * dri2CreateScreen(int screen, struct glx_display * priv) { const __DRIconfig **driver_configs; const __DRIextension **extensions; const struct dri2_display *const pdp = (struct dri2_display *) priv->dri2Display; struct dri2_screen *psc; __GLXDRIscreen *psp; char *driverName, *deviceName; drm_magic_t magic; int i; psc = Xmalloc(sizeof *psc); if (psc == NULL) return NULL; memset(psc, 0, sizeof *psc); psc->fd = -1; if (!glx_screen_init(&psc->base, screen, priv)) { Xfree(psc); return NULL; } if (!DRI2Connect(priv->dpy, RootWindow(priv->dpy, screen), &driverName, &deviceName)) { glx_screen_cleanup(&psc->base); XFree(psc); InfoMessageF("screen %d does not appear to be DRI2 capable\n", screen); return NULL; } psc->driver = driOpenDriver(driverName); if (psc->driver == NULL) { ErrorMessageF("driver pointer missing\n"); goto handle_error; } extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS); if (extensions == NULL) { ErrorMessageF("driver exports no extensions (%s)\n", dlerror()); goto handle_error; } for (i = 0; extensions[i]; i++) { if (strcmp(extensions[i]->name, __DRI_CORE) == 0) psc->core = (__DRIcoreExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_DRI2) == 0) psc->dri2 = (__DRIdri2Extension *) extensions[i]; } if (psc->core == NULL || psc->dri2 == NULL) { ErrorMessageF("core dri or dri2 extension not found\n"); goto handle_error; } psc->fd = open(deviceName, O_RDWR); if (psc->fd < 0) { ErrorMessageF("failed to open drm device: %s\n", strerror(errno)); goto handle_error; } if (drmGetMagic(psc->fd, &magic)) { ErrorMessageF("failed to get magic\n"); goto handle_error; } if (!DRI2Authenticate(priv->dpy, RootWindow(priv->dpy, screen), magic)) { ErrorMessageF("failed to authenticate magic %d\n", magic); goto handle_error; } /* If the server does not support the protocol for * DRI2GetBuffersWithFormat, don't supply that interface to the driver. */ psc->driScreen = psc->dri2->createNewScreen(screen, psc->fd, (const __DRIextension **) &pdp->loader_extensions[0], &driver_configs, psc); if (psc->driScreen == NULL) { ErrorMessageF("failed to create dri screen\n"); goto handle_error; } extensions = psc->core->getExtensions(psc->driScreen); dri2BindExtensions(psc, extensions); psc->base.configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs); psc->base.visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs); psc->driver_configs = driver_configs; psc->base.vtable = &dri2_screen_vtable; psp = &psc->vtable; psc->base.driScreen = psp; psp->destroyScreen = dri2DestroyScreen; psp->createDrawable = dri2CreateDrawable; psp->swapBuffers = dri2SwapBuffers; psp->getDrawableMSC = NULL; psp->waitForMSC = NULL; psp->waitForSBC = NULL; psp->setSwapInterval = NULL; psp->getSwapInterval = NULL; if (pdp->driMinor >= 2) { #ifdef X_DRI2GetMSC psp->getDrawableMSC = dri2DrawableGetMSC; #endif #ifdef X_DRI2WaitMSC psp->waitForMSC = dri2WaitForMSC; psp->waitForSBC = dri2WaitForSBC; #endif #ifdef X_DRI2SwapInterval psp->setSwapInterval = dri2SetSwapInterval; psp->getSwapInterval = dri2GetSwapInterval; #endif #if defined(X_DRI2GetMSC) && defined(X_DRI2WaitMSC) && defined(X_DRI2SwapInterval) __glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control"); #endif } /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always * available.*/ psp->copySubBuffer = dri2CopySubBuffer; __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer"); Xfree(driverName); Xfree(deviceName); return &psc->base; handle_error: if (psc->fd >= 0) close(psc->fd); if (psc->driver) dlclose(psc->driver); Xfree(driverName); Xfree(deviceName); glx_screen_cleanup(&psc->base); XFree(psc); return NULL; } /* Called from __glXFreeDisplayPrivate. */ static void dri2DestroyDisplay(__GLXDRIdisplay * dpy) { struct dri2_display *pdp = (struct dri2_display *) dpy; __glxHashDestroy(pdp->dri2Hash); Xfree(dpy); } _X_HIDDEN __GLXDRIdrawable * dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id) { struct glx_display *d = __glXInitialize(dpy); struct dri2_display *pdp = (struct dri2_display *) d->dri2Display; __GLXDRIdrawable *pdraw; if (__glxHashLookup(pdp->dri2Hash, id, (void *) &pdraw) == 0) return pdraw; return NULL; } /* * Allocate, initialize and return a __DRIdisplayPrivate object. * This is called from __glXInitialize() when we are given a new * display pointer. */ _X_HIDDEN __GLXDRIdisplay * dri2CreateDisplay(Display * dpy) { struct dri2_display *pdp; int eventBase, errorBase, i; if (!DRI2QueryExtension(dpy, &eventBase, &errorBase)) return NULL; pdp = Xmalloc(sizeof *pdp); if (pdp == NULL) return NULL; if (!DRI2QueryVersion(dpy, &pdp->driMajor, &pdp->driMinor)) { Xfree(pdp); return NULL; } pdp->driPatch = 0; pdp->swapAvailable = (pdp->driMinor >= 2); pdp->invalidateAvailable = (pdp->driMinor >= 3); pdp->base.destroyDisplay = dri2DestroyDisplay; pdp->base.createScreen = dri2CreateScreen; i = 0; if (pdp->driMinor < 1) pdp->loader_extensions[i++] = &dri2LoaderExtension_old.base; else pdp->loader_extensions[i++] = &dri2LoaderExtension.base; pdp->loader_extensions[i++] = &systemTimeExtension.base; #ifdef __DRI_USE_INVALIDATE pdp->loader_extensions[i++] = &dri2UseInvalidate.base; #endif pdp->loader_extensions[i++] = NULL; pdp->dri2Hash = __glxHashCreate(); if (pdp->dri2Hash == NULL) { Xfree(pdp); return NULL; } return &pdp->base; } #endif /* GLX_DIRECT_RENDERING */