diff options
Diffstat (limited to 'src/glx/x11/dri2_glx.c')
| -rw-r--r-- | src/glx/x11/dri2_glx.c | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/src/glx/x11/dri2_glx.c b/src/glx/x11/dri2_glx.c new file mode 100644 index 00000000000..1a6abaedab8 --- /dev/null +++ b/src/glx/x11/dri2_glx.c @@ -0,0 +1,471 @@ +/* + * 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 ([email protected]) + */ + +#ifdef GLX_DIRECT_RENDERING + +#include <unistd.h> +#include <X11/Xlibint.h> +#include <X11/extensions/Xext.h> +#include <X11/extensions/extutil.h> +#include <X11/extensions/Xfixes.h> +#include <X11/extensions/Xdamage.h> +#include "glheader.h" +#include "glxclient.h" +#include "xf86dri.h" +#include "sarea.h" +#include <stdio.h> +#include <dlfcn.h> +#include <sys/types.h> +#include <stdarg.h> +#include "glcontextmodes.h" +#include <sys/mman.h> +#include "xf86drm.h" +#include "dri2.h" + + +#ifndef RTLD_NOW +#define RTLD_NOW 0 +#endif +#ifndef RTLD_GLOBAL +#define RTLD_GLOBAL 0 +#endif + +typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate; +typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate; +typedef struct __GLXDRIconfigPrivateRec __GLXDRIconfigPrivate; + +struct __GLXDRIdisplayPrivateRec { + __GLXDRIdisplay base; + + /* + ** XFree86-DRI version information + */ + int driMajor; + int driMinor; + int driPatch; +}; + +struct __GLXDRIcontextPrivateRec { + __GLXDRIcontext base; + __DRIcontext *driContext; + __GLXscreenConfigs *psc; +}; + +struct __GLXDRIconfigPrivateRec { + __GLcontextModes modes; + const __DRIconfig *driConfig; +}; + +static void dri2DestroyContext(__GLXDRIcontext *context, + __GLXscreenConfigs *psc, Display *dpy) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->destroyContext)(pcp->driContext); + + Xfree(pcp); +} + +static Bool dri2BindContext(__GLXDRIcontext *context, + __GLXDRIdrawable *draw, __GLXDRIdrawable *read) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + return (*core->bindContext)(pcp->driContext, + draw->driDrawable, + read->driDrawable); +} + +static void dri2UnbindContext(__GLXDRIcontext *context) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->unbindContext)(pcp->driContext); +} + +static __GLXDRIcontext *dri2CreateContext(__GLXscreenConfigs *psc, + const __GLcontextModes *mode, + GLXContext gc, + GLXContext shareList, int renderType) +{ + __GLXDRIcontextPrivate *pcp, *pcp_shared; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode; + const __DRIcoreExtension *core = psc->core; + __DRIcontext *shared = NULL; + + if (shareList) { + pcp_shared = (__GLXDRIcontextPrivate *) shareList->driContext; + shared = pcp_shared->driContext; + } + + pcp = Xmalloc(sizeof *pcp); + if (pcp == NULL) + return NULL; + + pcp->psc = psc; + pcp->driContext = + (*core->createNewContext)(psc->__driScreen, + config->driConfig, shared, pcp); + gc->__driContext = pcp->driContext; + + if (pcp->driContext == NULL) { + Xfree(pcp); + return NULL; + } + + pcp->base.destroyContext = dri2DestroyContext; + pcp->base.bindContext = dri2BindContext; + pcp->base.unbindContext = dri2UnbindContext; + + return &pcp->base; +} + +static void dri2DestroyDrawable(__GLXDRIdrawable *pdraw) +{ + const __DRIcoreExtension *core = pdraw->psc->core; + + (*core->destroyDrawable)(pdraw->driDrawable); + DRI2DestroyDrawable(pdraw->psc->dpy, pdraw->drawable); + Xfree(pdraw); +} + +static __GLXDRIdrawable *dri2CreateDrawable(__GLXscreenConfigs *psc, + XID xDrawable, + GLXDrawable drawable, + const __GLcontextModes *modes) +{ + __GLXDRIdrawable *pdraw; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; + unsigned int handle, head; + const __DRIcoreExtension *core = psc->core; + + pdraw = Xmalloc(sizeof(*pdraw)); + if (!pdraw) + return NULL; + + pdraw->destroyDrawable = dri2DestroyDrawable; + pdraw->xDrawable = xDrawable; + pdraw->drawable = drawable; + pdraw->psc = psc; + + fprintf(stderr, "calling DRI2CreateDrawable, XID 0x%lx, GLX ID 0x%lx\n", + xDrawable, drawable); + + if (!DRI2CreateDrawable(psc->dpy, xDrawable, &handle, &head)) { + Xfree(pdraw); + return NULL; + } + + fprintf(stderr, "success, head 0x%x, handle 0x%x\n", head, handle); + + /* Create a new drawable */ + pdraw->driDrawable = + (*core->createNewDrawable)(psc->__driScreen, + config->driConfig, + handle, + head, + pdraw); + + if (!pdraw->driDrawable) { + DRI2DestroyDrawable(psc->dpy, drawable); + Xfree(pdraw); + return NULL; + } + + return pdraw; +} + +static void dri2DestroyScreen(__GLXscreenConfigs *psc) +{ + /* Free the direct rendering per screen data */ + (*psc->core->destroyScreen)(psc->__driScreen); + drmClose(psc->fd); + psc->__driScreen = NULL; +} + + +static void dri2ReemitDrawableInfo(__DRIdrawable *draw, unsigned int *tail, + void *loaderPrivate) +{ + __GLXDRIdrawable *pdraw = loaderPrivate; + + DRI2ReemitDrawableInfo(pdraw->psc->dpy, pdraw->drawable, tail); +} + +static void dri2PostDamage(__DRIdrawable *draw, + struct drm_clip_rect *rects, + int numRects, void *loaderPrivate) +{ + XRectangle *xrects; + XserverRegion region; + __GLXDRIdrawable *glxDraw = loaderPrivate; + __GLXscreenConfigs *psc = glxDraw->psc; + Display *dpy = psc->dpy; + int i; + + xrects = malloc(sizeof(XRectangle) * numRects); + if (xrects == NULL) + return; + + for (i = 0; i < numRects; i++) { + xrects[i].x = rects[i].x1; + xrects[i].y = rects[i].y1; + xrects[i].width = rects[i].x2 - rects[i].x1; + xrects[i].height = rects[i].y2 - rects[i].y1; + } + region = XFixesCreateRegion(dpy, xrects, numRects); + free(xrects); + XDamageAdd(dpy, glxDraw->xDrawable, region); + XFixesDestroyRegion(dpy, region); +} + +static const __DRIloaderExtension dri2LoaderExtension = { + { __DRI_LOADER, __DRI_LOADER_VERSION }, + dri2ReemitDrawableInfo, + dri2PostDamage +}; + +_X_HIDDEN const __DRIsystemTimeExtension systemTimeExtension; + +static const __DRIextension *loader_extensions[] = { + &dri2LoaderExtension.base, + &systemTimeExtension.base, + NULL +}; + +/* We need a dri_common.h type-of-thing. */ + +extern void ErrorMessageF(const char *f, ...); + +extern void *driOpenDriver(const char *driverName); + +extern __GLcontextModes * +driConvertConfigs(const __DRIcoreExtension *core, + __GLcontextModes *modes, const __DRIconfig **configs); + +extern void driBindExtensions(__GLXscreenConfigs *psc); + +void +driBindExtensions(__GLXscreenConfigs *psc) +{ + const __DRIextension **extensions; + int i; + + extensions = psc->core->getExtensions(psc->__driScreen); + + for (i = 0; extensions[i]; i++) { +#ifdef __DRI_COPY_SUB_BUFFER + if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) { + psc->copySubBuffer = (__DRIcopySubBufferExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer_bit"); + } +#endif + +#ifdef __DRI_SWAP_CONTROL + if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) { + psc->swapControl = (__DRIswapControlExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_SGI_swap_control"); + __glXEnableDirectExtension(psc, "GLX_MESA_swap_control"); + } +#endif + +#ifdef __DRI_ALLOCATE + if (strcmp(extensions[i]->name, __DRI_ALLOCATE) == 0) { + psc->allocate = (__DRIallocateExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_MESA_allocate_memory"); + } +#endif + +#ifdef __DRI_FRAME_TRACKING + if (strcmp(extensions[i]->name, __DRI_FRAME_TRACKING) == 0) { + psc->frameTracking = (__DRIframeTrackingExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_MESA_swap_frame_usage"); + } +#endif + +#ifdef __DRI_MEDIA_STREAM_COUNTER + if (strcmp(extensions[i]->name, __DRI_MEDIA_STREAM_COUNTER) == 0) { + psc->msc = (__DRImediaStreamCounterExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_SGI_video_sync"); + } +#endif + +#ifdef __DRI_SWAP_BUFFER_COUNTER + /* No driver supports this at this time and the extension is + * not defined in dri_interface.h. Will enable + * GLX_OML_sync_control if implemented. */ +#endif + +#ifdef __DRI_READ_DRAWABLE + if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) { + __glXEnableDirectExtension(psc, "GLX_SGI_make_current_read"); + } +#endif + +#ifdef __DRI_TEX_BUFFER + if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) { + psc->texBuffer = (__DRItexBufferExtension *) extensions[i]; + __glXEnableDirectExtension(psc, "GLX_EXT_texture_from_pixmap"); + } +#endif + + /* Ignore unknown extensions */ + } +} + +static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen, + __GLXdisplayPrivate *priv) +{ + const __DRIconfig **driver_configs; + const __DRIextension **extensions; + __GLXDRIscreen *psp; + unsigned int sareaHandle; + char *driverName, *busID; + drm_magic_t magic; + int i; + + psp = Xmalloc(sizeof *psp); + if (psp == NULL) + return NULL; + + /* Initialize per screen dynamic client GLX extensions */ + psc->ext_list_first_time = GL_TRUE; + + if (!DRI2Connect(psc->dpy, screen, &driverName, &busID, &sareaHandle)) + return NULL; + + psc->driver = driOpenDriver(driverName); + if (psc->driver == NULL) + 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 (psc->core == NULL) { + ErrorMessageF("core dri extension not found\n"); + goto handle_error; + } + + psc->fd = drmOpen(NULL, busID); + if (psc->fd < 0) { + ErrorMessageF("failed to open drm device: %s\n", strerror(errno)); + return NULL; + } + + if (drmGetMagic(psc->fd, &magic)) + return NULL; + + if (!DRI2AuthConnection(psc->dpy, screen, magic)) { + ErrorMessageF("failed to authenticate drm access\n"); + return NULL; + } + + psc->__driScreen = + psc->core->createNewScreen(screen, psc->fd, sareaHandle, + loader_extensions, &driver_configs, psc); + if (psc->__driScreen == NULL) { + ErrorMessageF("failed to create dri screen\n"); + return NULL; + } + + driBindExtensions(psc); + + psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs); + psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs); + + psp->destroyScreen = dri2DestroyScreen; + psp->createContext = dri2CreateContext; + psp->createDrawable = dri2CreateDrawable; + + Xfree(driverName); + Xfree(busID); + + return psp; + + handle_error: + Xfree(driverName); + Xfree(busID); + + /* FIXME: clean up here */ + + return NULL; +} + +/* Called from __glXFreeDisplayPrivate. + */ +static void dri2DestroyDisplay(__GLXDRIdisplay *dpy) +{ + Xfree(dpy); +} + +/* + * 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) +{ + __GLXDRIdisplayPrivate *pdp; + int eventBase, errorBase; + + 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->base.destroyDisplay = dri2DestroyDisplay; + pdp->base.createScreen = dri2CreateScreen; + + return &pdp->base; +} + +#endif /* GLX_DIRECT_RENDERING */ |