diff options
Diffstat (limited to 'src/glx/dri2_glx.c')
| -rw-r--r-- | src/glx/dri2_glx.c | 666 |
1 files changed, 666 insertions, 0 deletions
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c new file mode 100644 index 0000000000..15a3ea5907 --- /dev/null +++ b/src/glx/dri2_glx.c @@ -0,0 +1,666 @@ +/* + * 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) + */ + +#ifdef GLX_DIRECT_RENDERING + +#include <X11/Xlib.h> +#include <X11/extensions/Xfixes.h> +#include <X11/extensions/Xdamage.h> +#include "glapi.h" +#include "glxclient.h" +#include <X11/extensions/dri2proto.h> +#include "xf86dri.h" +#include <dlfcn.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/mman.h> +#include "xf86drm.h" +#include "dri2.h" +#include "dri_common.h" +#include "../../mesa/drivers/dri/common/dri_util.h" + +#undef DRI2_MINOR +#define DRI2_MINOR 1 + +typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate; +typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate; +typedef struct __GLXDRIdrawablePrivateRec __GLXDRIdrawablePrivate; + +struct __GLXDRIdisplayPrivateRec +{ + __GLXDRIdisplay base; + + /* + ** XFree86-DRI version information + */ + int driMajor; + int driMinor; + int driPatch; + int swapAvailable; +}; + +struct __GLXDRIcontextPrivateRec +{ + __GLXDRIcontext base; + __DRIcontext *driContext; + __GLXscreenConfigs *psc; +}; + +struct __GLXDRIdrawablePrivateRec +{ + __GLXDRIdrawable base; + __DRIbuffer buffers[5]; + int bufferCount; + int width, height; + int have_back; + int have_fake_front; + int swap_interval; +}; + +static void dri2WaitX(__GLXDRIdrawable * pdraw); + +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; + __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 = + (*psc->dri2->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->xDrawable); + Xfree(pdraw); +} + +static __GLXDRIdrawable * +dri2CreateDrawable(__GLXscreenConfigs * psc, + XID xDrawable, + GLXDrawable drawable, const __GLcontextModes * modes) +{ + __GLXDRIdrawablePrivate *pdraw; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; + + pdraw = Xmalloc(sizeof(*pdraw)); + if (!pdraw) + return NULL; + + pdraw->base.destroyDrawable = dri2DestroyDrawable; + pdraw->base.xDrawable = xDrawable; + pdraw->base.drawable = drawable; + pdraw->base.psc = psc; + pdraw->bufferCount = 0; + + DRI2CreateDrawable(psc->dpy, xDrawable); + + /* Create a new drawable */ + pdraw->base.driDrawable = + (*psc->dri2->createNewDrawable) (psc->__driScreen, + config->driConfig, pdraw); + + if (!pdraw->base.driDrawable) { + DRI2DestroyDrawable(psc->dpy, xDrawable); + Xfree(pdraw); + return NULL; + } + + return &pdraw->base; +} + +static int +dri2DrawableGetMSC(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw, + int64_t *ust, int64_t *msc, int64_t *sbc) +{ + return DRI2GetMSC(psc->dpy, pdraw->xDrawable, ust, msc, sbc); +} + +static int +dri2WaitForMSC(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, + int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc) +{ + return DRI2WaitMSC(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor, + remainder, ust, msc, sbc); +} + +static int +dri2WaitForSBC(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, + int64_t *msc, int64_t *sbc) +{ + return DRI2WaitSBC(pdraw->psc->dpy, pdraw->xDrawable, target_sbc, ust, msc, + sbc); +} + +static void +dri2CopySubBuffer(__GLXDRIdrawable *pdraw, int x, int y, int width, int height) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + 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 (pdraw->psc->f) + (*pdraw->psc->f->flush) (pdraw->driDrawable); +#endif + + region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1); + /* should get a fence ID back from here at some point */ + DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region, + DRI2BufferFrontLeft, DRI2BufferBackLeft); + XFixesDestroyRegion(pdraw->psc->dpy, region); + + /* Refresh the fake front (if present) after we just damaged the real + * front. + */ + dri2WaitX(pdraw); +} + +static void +dri2WaitX(__GLXDRIdrawable *pdraw) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + XRectangle xrect; + XserverRegion region; + + /* Check we have the right attachments */ + if (!priv->have_fake_front) + return; + + xrect.x = 0; + xrect.y = 0; + xrect.width = priv->width; + xrect.height = priv->height; + +#ifdef __DRI2_FLUSH + if (pdraw->psc->f) + (*pdraw->psc->f->flush) (pdraw->driDrawable); +#endif + + region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1); + DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region, + DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); + XFixesDestroyRegion(pdraw->psc->dpy, region); +} + +static void +dri2WaitGL(__GLXDRIdrawable * pdraw) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + XRectangle xrect; + XserverRegion region; + + if (!priv->have_fake_front) + return; + + xrect.x = 0; + xrect.y = 0; + xrect.width = priv->width; + xrect.height = priv->height; + +#ifdef __DRI2_FLUSH + if (pdraw->psc->f) + (*pdraw->psc->f->flush) (pdraw->driDrawable); +#endif + + region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1); + DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region, + DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); + XFixesDestroyRegion(pdraw->psc->dpy, region); +} + + +static void +dri2FlushFrontBuffer(__DRIdrawable * driDrawable, void *loaderPrivate) +{ + (void) driDrawable; + dri2WaitGL((__GLXDRIdrawable *) loaderPrivate); +} + + +static void +dri2DestroyScreen(__GLXscreenConfigs * psc) +{ + /* Free the direct rendering per screen data */ + (*psc->core->destroyScreen) (psc->__driScreen); + close(psc->fd); + psc->__driScreen = NULL; +} + +/** + * 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(__GLXDRIdrawablePrivate * 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; + } + +} + +static int64_t +dri2SwapBuffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, + int64_t remainder) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + __GLXdisplayPrivate *dpyPriv = __glXInitialize(priv->base.psc->dpy); + __GLXDRIdisplayPrivate *pdp = + (__GLXDRIdisplayPrivate *)dpyPriv->dri2Display; + int64_t ret; + +#ifdef __DRI2_FLUSH + if (pdraw->psc->f) + (*pdraw->psc->f->flush)(pdraw->driDrawable); +#endif + + /* Old servers can't handle swapbuffers */ + if (!pdp->swapAvailable) { + dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height); + return 0; + } + +#ifdef X_DRI2SwapBuffers + DRI2SwapBuffers(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor, + remainder, &ret); +#endif + +#if __DRI2_FLUSH_VERSION >= 2 + if (pdraw->psc->f) + (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable); +#endif + + return ret; +} + +static __DRIbuffer * +dri2GetBuffers(__DRIdrawable * driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + __GLXDRIdrawablePrivate *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) +{ + __GLXDRIdrawablePrivate *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; +} + +static void +dri2SetSwapInterval(__GLXDRIdrawable *pdraw, int interval) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + + DRI2SwapInterval(priv->base.psc->dpy, pdraw->xDrawable, interval); + priv->swap_interval = interval; +} + +static unsigned int +dri2GetSwapInterval(__GLXDRIdrawable *pdraw) +{ + __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw; + + return priv->swap_interval; +} + +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, +}; + +static const __DRIextension *loader_extensions[] = { + &dri2LoaderExtension.base, + &systemTimeExtension.base, + NULL +}; + +static const __DRIextension *loader_extensions_old[] = { + &dri2LoaderExtension_old.base, + &systemTimeExtension.base, + NULL +}; + +static __GLXDRIscreen * +dri2CreateScreen(__GLXscreenConfigs * psc, int screen, + __GLXdisplayPrivate * priv) +{ + const __DRIconfig **driver_configs; + const __DRIextension **extensions; + const __GLXDRIdisplayPrivate *const pdp = (__GLXDRIdisplayPrivate *) + priv->dri2Display; + __GLXDRIscreen *psp; + char *driverName, *deviceName; + 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, RootWindow(psc->dpy, screen), + &driverName, &deviceName)) { + XFree(psp); + 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(psc->dpy, RootWindow(psc->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, ((pdp->driMinor < 1) + ? loader_extensions_old + : loader_extensions), + &driver_configs, psc); + + if (psc->__driScreen == NULL) { + ErrorMessageF("failed to create dri screen\n"); + goto handle_error; + } + + driBindCommonExtensions(psc); + dri2BindExtensions(psc); + + psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs); + psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs); + + psc->driver_configs = driver_configs; + + psp->destroyScreen = dri2DestroyScreen; + psp->createContext = dri2CreateContext; + psp->createDrawable = dri2CreateDrawable; + psp->swapBuffers = dri2SwapBuffers; + psp->waitGL = dri2WaitGL; + psp->waitX = dri2WaitX; + 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 + } + + /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always + * available.*/ + psp->copySubBuffer = dri2CopySubBuffer; + __glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer"); + + Xfree(driverName); + Xfree(deviceName); + + return psp; + +handle_error: + Xfree(driverName); + Xfree(deviceName); + XFree(psp); + + /* 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->swapAvailable = 0; +#ifdef X_DRI2SwapBuffers + if (pdp->driMinor >= 2) + pdp->swapAvailable = 1; +#endif + + pdp->base.destroyDisplay = dri2DestroyDisplay; + pdp->base.createScreen = dri2CreateScreen; + + return &pdp->base; +} + +#endif /* GLX_DIRECT_RENDERING */ |