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Diffstat (limited to 'src/glx/dri_glx.c')
| -rw-r--r-- | src/glx/dri_glx.c | 751 |
1 files changed, 751 insertions, 0 deletions
diff --git a/src/glx/dri_glx.c b/src/glx/dri_glx.c new file mode 100644 index 00000000000..0ff53c324f5 --- /dev/null +++ b/src/glx/dri_glx.c @@ -0,0 +1,751 @@ +/************************************************************************** + +Copyright 1998-1999 Precision Insight, 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 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. + +**************************************************************************/ + +/* + * Authors: + * Kevin E. Martin <[email protected]> + * Brian Paul <[email protected]> + * + */ + +#ifdef GLX_DIRECT_RENDERING + +#include <X11/Xlib.h> +#include <X11/extensions/Xfixes.h> +#include <X11/extensions/Xdamage.h> +#include "glxclient.h" +#include "xf86dri.h" +#include "dri2.h" +#include "sarea.h" +#include <dlfcn.h> +#include <sys/types.h> +#include <sys/mman.h> +#include "xf86drm.h" +#include "dri_common.h" + +typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate; +typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate; + +struct __GLXDRIdisplayPrivateRec +{ + __GLXDRIdisplay base; + + /* + ** XFree86-DRI version information + */ + int driMajor; + int driMinor; + int driPatch; +}; + +struct __GLXDRIcontextPrivateRec +{ + __GLXDRIcontext base; + __DRIcontext *driContext; + XID hwContextID; + __GLXscreenConfigs *psc; +}; + +/* + * Given a display pointer and screen number, determine the name of + * the DRI driver for the screen. (I.e. "r128", "tdfx", etc). + * Return True for success, False for failure. + */ +static Bool +driGetDriverName(Display * dpy, int scrNum, char **driverName) +{ + int directCapable; + Bool b; + int event, error; + int driverMajor, driverMinor, driverPatch; + + *driverName = NULL; + + if (XF86DRIQueryExtension(dpy, &event, &error)) { /* DRI1 */ + if (!XF86DRIQueryDirectRenderingCapable(dpy, scrNum, &directCapable)) { + ErrorMessageF("XF86DRIQueryDirectRenderingCapable failed\n"); + return False; + } + if (!directCapable) { + ErrorMessageF("XF86DRIQueryDirectRenderingCapable returned false\n"); + return False; + } + + b = XF86DRIGetClientDriverName(dpy, scrNum, &driverMajor, &driverMinor, + &driverPatch, driverName); + if (!b) { + ErrorMessageF("Cannot determine driver name for screen %d\n", + scrNum); + return False; + } + + InfoMessageF("XF86DRIGetClientDriverName: %d.%d.%d %s (screen %d)\n", + driverMajor, driverMinor, driverPatch, *driverName, + scrNum); + + return True; + } + else if (DRI2QueryExtension(dpy, &event, &error)) { /* DRI2 */ + char *dev; + Bool ret = DRI2Connect(dpy, RootWindow(dpy, scrNum), driverName, &dev); + + if (ret) + Xfree(dev); + + return ret; + } + + return False; +} + +/* + * Exported function for querying the DRI driver for a given screen. + * + * The returned char pointer points to a static array that will be + * overwritten by subsequent calls. + */ +PUBLIC const char * +glXGetScreenDriver(Display * dpy, int scrNum) +{ + static char ret[32]; + char *driverName; + if (driGetDriverName(dpy, scrNum, &driverName)) { + int len; + if (!driverName) + return NULL; + len = strlen(driverName); + if (len >= 31) + return NULL; + memcpy(ret, driverName, len + 1); + Xfree(driverName); + return ret; + } + return NULL; +} + +/* + * Exported function for obtaining a driver's option list (UTF-8 encoded XML). + * + * The returned char pointer points directly into the driver. Therefore + * it should be treated as a constant. + * + * If the driver was not found or does not support configuration NULL is + * returned. + * + * Note: The driver remains opened after this function returns. + */ +PUBLIC const char * +glXGetDriverConfig(const char *driverName) +{ + void *handle = driOpenDriver(driverName); + if (handle) + return dlsym(handle, "__driConfigOptions"); + else + return NULL; +} + +#ifdef XDAMAGE_1_1_INTERFACE + +static GLboolean +has_damage_post(Display * dpy) +{ + static GLboolean inited = GL_FALSE; + static GLboolean has_damage; + + if (!inited) { + int major, minor; + + if (XDamageQueryVersion(dpy, &major, &minor) && + major == 1 && minor >= 1) { + has_damage = GL_TRUE; + } + else { + has_damage = GL_FALSE; + } + inited = GL_TRUE; + } + + return has_damage; +} + +static void +__glXReportDamage(__DRIdrawable * driDraw, + int x, int y, + drm_clip_rect_t * rects, int num_rects, + GLboolean front_buffer, void *loaderPrivate) +{ + XRectangle *xrects; + XserverRegion region; + int i; + int x_off, y_off; + __GLXDRIdrawable *glxDraw = loaderPrivate; + __GLXscreenConfigs *psc = glxDraw->psc; + Display *dpy = psc->dpy; + Drawable drawable; + + if (!has_damage_post(dpy)) + return; + + if (front_buffer) { + x_off = x; + y_off = y; + drawable = RootWindow(dpy, psc->scr); + } + else { + x_off = 0; + y_off = 0; + drawable = glxDraw->xDrawable; + } + + xrects = malloc(sizeof(XRectangle) * num_rects); + if (xrects == NULL) + return; + + for (i = 0; i < num_rects; i++) { + xrects[i].x = rects[i].x1 + x_off; + xrects[i].y = rects[i].y1 + y_off; + xrects[i].width = rects[i].x2 - rects[i].x1; + xrects[i].height = rects[i].y2 - rects[i].y1; + } + region = XFixesCreateRegion(dpy, xrects, num_rects); + free(xrects); + XDamageAdd(dpy, drawable, region); + XFixesDestroyRegion(dpy, region); +} + +static const __DRIdamageExtension damageExtension = { + {__DRI_DAMAGE, __DRI_DAMAGE_VERSION}, + __glXReportDamage, +}; + +#endif + +static GLboolean +__glXDRIGetDrawableInfo(__DRIdrawable * drawable, + unsigned int *index, unsigned int *stamp, + int *X, int *Y, int *W, int *H, + int *numClipRects, drm_clip_rect_t ** pClipRects, + int *backX, int *backY, + int *numBackClipRects, + drm_clip_rect_t ** pBackClipRects, + void *loaderPrivate) +{ + __GLXDRIdrawable *glxDraw = loaderPrivate; + __GLXscreenConfigs *psc = glxDraw->psc; + Display *dpy = psc->dpy; + + return XF86DRIGetDrawableInfo(dpy, psc->scr, glxDraw->drawable, + index, stamp, X, Y, W, H, + numClipRects, pClipRects, + backX, backY, + numBackClipRects, pBackClipRects); +} + +static const __DRIgetDrawableInfoExtension getDrawableInfoExtension = { + {__DRI_GET_DRAWABLE_INFO, __DRI_GET_DRAWABLE_INFO_VERSION}, + __glXDRIGetDrawableInfo +}; + +static const __DRIextension *loader_extensions[] = { + &systemTimeExtension.base, + &getDrawableInfoExtension.base, +#ifdef XDAMAGE_1_1_INTERFACE + &damageExtension.base, +#endif + NULL +}; + +/** + * Perform the required libGL-side initialization and call the client-side + * driver's \c __driCreateNewScreen function. + * + * \param dpy Display pointer. + * \param scrn Screen number on the display. + * \param psc DRI screen information. + * \param driDpy DRI display information. + * \param createNewScreen Pointer to the client-side driver's + * \c __driCreateNewScreen function. + * \returns A pointer to the \c __DRIscreen structure returned by + * the client-side driver on success, or \c NULL on failure. + */ +static void * +CallCreateNewScreen(Display * dpy, int scrn, __GLXscreenConfigs * psc, + __GLXDRIdisplayPrivate * driDpy) +{ + void *psp = NULL; + drm_handle_t hSAREA; + drmAddress pSAREA = MAP_FAILED; + char *BusID; + __DRIversion ddx_version; + __DRIversion dri_version; + __DRIversion drm_version; + __DRIframebuffer framebuffer; + int fd = -1; + int status; + + drm_magic_t magic; + drmVersionPtr version; + int newlyopened; + char *driverName; + drm_handle_t hFB; + int junk; + const __DRIconfig **driver_configs; + __GLcontextModes *visual; + + /* DRI protocol version. */ + dri_version.major = driDpy->driMajor; + dri_version.minor = driDpy->driMinor; + dri_version.patch = driDpy->driPatch; + + framebuffer.base = MAP_FAILED; + framebuffer.dev_priv = NULL; + + if (!XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) { + ErrorMessageF("XF86DRIOpenConnection failed\n"); + goto handle_error; + } + + fd = drmOpenOnce(NULL, BusID, &newlyopened); + + Xfree(BusID); /* No longer needed */ + + if (fd < 0) { + ErrorMessageF("drmOpenOnce failed (%s)\n", strerror(-fd)); + goto handle_error; + } + + if (drmGetMagic(fd, &magic)) { + ErrorMessageF("drmGetMagic failed\n"); + goto handle_error; + } + + version = drmGetVersion(fd); + if (version) { + drm_version.major = version->version_major; + drm_version.minor = version->version_minor; + drm_version.patch = version->version_patchlevel; + drmFreeVersion(version); + } + else { + drm_version.major = -1; + drm_version.minor = -1; + drm_version.patch = -1; + } + + if (newlyopened && !XF86DRIAuthConnection(dpy, scrn, magic)) { + ErrorMessageF("XF86DRIAuthConnection failed\n"); + goto handle_error; + } + + /* Get device name (like "tdfx") and the ddx version numbers. + * We'll check the version in each DRI driver's "createNewScreen" + * function. */ + if (!XF86DRIGetClientDriverName(dpy, scrn, + &ddx_version.major, + &ddx_version.minor, + &ddx_version.patch, &driverName)) { + ErrorMessageF("XF86DRIGetClientDriverName failed\n"); + goto handle_error; + } + + Xfree(driverName); /* No longer needed. */ + + /* + * Get device-specific info. pDevPriv will point to a struct + * (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h) that + * has information about the screen size, depth, pitch, ancilliary + * buffers, DRM mmap handles, etc. + */ + if (!XF86DRIGetDeviceInfo(dpy, scrn, &hFB, &junk, + &framebuffer.size, &framebuffer.stride, + &framebuffer.dev_priv_size, + &framebuffer.dev_priv)) { + ErrorMessageF("XF86DRIGetDeviceInfo failed"); + goto handle_error; + } + + framebuffer.width = DisplayWidth(dpy, scrn); + framebuffer.height = DisplayHeight(dpy, scrn); + + /* Map the framebuffer region. */ + status = drmMap(fd, hFB, framebuffer.size, + (drmAddressPtr) & framebuffer.base); + if (status != 0) { + ErrorMessageF("drmMap of framebuffer failed (%s)", strerror(-status)); + goto handle_error; + } + + /* Map the SAREA region. Further mmap regions may be setup in + * each DRI driver's "createNewScreen" function. + */ + status = drmMap(fd, hSAREA, SAREA_MAX, &pSAREA); + if (status != 0) { + ErrorMessageF("drmMap of SAREA failed (%s)", strerror(-status)); + goto handle_error; + } + + psp = (*psc->legacy->createNewScreen) (scrn, + &ddx_version, + &dri_version, + &drm_version, + &framebuffer, + pSAREA, + fd, + loader_extensions, + &driver_configs, psc); + + if (psp == NULL) { + ErrorMessageF("Calling driver entry point failed"); + goto handle_error; + } + + psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs); + psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs); + + psc->driver_configs = driver_configs; + + /* Visuals with depth != screen depth are subject to automatic compositing + * in the X server, so DRI1 can't render to them properly. Mark them as + * non-conformant to prevent apps from picking them up accidentally. + */ + for (visual = psc->visuals; visual; visual = visual->next) { + XVisualInfo template; + XVisualInfo *visuals; + int num_visuals; + long mask; + + template.visualid = visual->visualID; + mask = VisualIDMask; + visuals = XGetVisualInfo(dpy, mask, &template, &num_visuals); + + if (visuals) { + if (num_visuals > 0 && visuals->depth != DefaultDepth(dpy, scrn)) + visual->visualRating = GLX_NON_CONFORMANT_CONFIG; + + XFree(visuals); + } + } + + return psp; + + handle_error: + if (pSAREA != MAP_FAILED) + drmUnmap(pSAREA, SAREA_MAX); + + if (framebuffer.base != MAP_FAILED) + drmUnmap((drmAddress) framebuffer.base, framebuffer.size); + + if (framebuffer.dev_priv != NULL) + Xfree(framebuffer.dev_priv); + + if (fd >= 0) + drmCloseOnce(fd); + + XF86DRICloseConnection(dpy, scrn); + + ErrorMessageF("reverting to software direct rendering\n"); + + return NULL; +} + +static void +driDestroyContext(__GLXDRIcontext * context, + __GLXscreenConfigs * psc, Display * dpy) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + + (*psc->core->destroyContext) (pcp->driContext); + + XF86DRIDestroyContext(psc->dpy, psc->scr, pcp->hwContextID); + Xfree(pcp); +} + +static Bool +driBindContext(__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 +driUnbindContext(__GLXDRIcontext * context) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->unbindContext) (pcp->driContext); +} + +static __GLXDRIcontext * +driCreateContext(__GLXscreenConfigs * psc, + const __GLcontextModes * mode, + GLXContext gc, GLXContext shareList, int renderType) +{ + __GLXDRIcontextPrivate *pcp, *pcp_shared; + drm_context_t hwContext; + __DRIcontext *shared = NULL; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode; + + if (!psc || !psc->driScreen) + return NULL; + + if (shareList) { + pcp_shared = (__GLXDRIcontextPrivate *) shareList->driContext; + shared = pcp_shared->driContext; + } + + pcp = Xmalloc(sizeof *pcp); + if (pcp == NULL) + return NULL; + + pcp->psc = psc; + if (!XF86DRICreateContextWithConfig(psc->dpy, psc->scr, + mode->visualID, + &pcp->hwContextID, &hwContext)) { + Xfree(pcp); + return NULL; + } + + pcp->driContext = + (*psc->legacy->createNewContext) (psc->__driScreen, + config->driConfig, + renderType, shared, hwContext, pcp); + if (pcp->driContext == NULL) { + XF86DRIDestroyContext(psc->dpy, psc->scr, pcp->hwContextID); + Xfree(pcp); + return NULL; + } + + pcp->base.destroyContext = driDestroyContext; + pcp->base.bindContext = driBindContext; + pcp->base.unbindContext = driUnbindContext; + + return &pcp->base; +} + +static void +driDestroyDrawable(__GLXDRIdrawable * pdraw) +{ + __GLXscreenConfigs *psc = pdraw->psc; + + (*psc->core->destroyDrawable) (pdraw->driDrawable); + XF86DRIDestroyDrawable(psc->dpy, psc->scr, pdraw->drawable); + Xfree(pdraw); +} + +static __GLXDRIdrawable * +driCreateDrawable(__GLXscreenConfigs * psc, + XID xDrawable, + GLXDrawable drawable, const __GLcontextModes * modes) +{ + __GLXDRIdrawable *pdraw; + drm_drawable_t hwDrawable; + void *empty_attribute_list = NULL; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; + + /* Old dri can't handle GLX 1.3+ drawable constructors. */ + if (xDrawable != drawable) + return NULL; + + pdraw = Xmalloc(sizeof(*pdraw)); + if (!pdraw) + return NULL; + + pdraw->drawable = drawable; + pdraw->psc = psc; + + if (!XF86DRICreateDrawable(psc->dpy, psc->scr, drawable, &hwDrawable)) { + Xfree(pdraw); + return NULL; + } + + /* Create a new drawable */ + pdraw->driDrawable = + (*psc->legacy->createNewDrawable) (psc->__driScreen, + config->driConfig, + hwDrawable, + GLX_WINDOW_BIT, + empty_attribute_list, pdraw); + + if (!pdraw->driDrawable) { + XF86DRIDestroyDrawable(psc->dpy, psc->scr, drawable); + Xfree(pdraw); + return NULL; + } + + pdraw->destroyDrawable = driDestroyDrawable; + + return pdraw; +} + +static int64_t +driSwapBuffers(__GLXDRIdrawable * pdraw, int64_t unused1, int64_t unused2, + int64_t unused3) +{ + (*pdraw->psc->core->swapBuffers) (pdraw->driDrawable); + return 0; +} + +static void +driCopySubBuffer(__GLXDRIdrawable * pdraw, + int x, int y, int width, int height) +{ + (*pdraw->psc->driCopySubBuffer->copySubBuffer) (pdraw->driDrawable, + x, y, width, height); +} + +static void +driDestroyScreen(__GLXscreenConfigs * psc) +{ + /* Free the direct rendering per screen data */ + if (psc->__driScreen) + (*psc->core->destroyScreen) (psc->__driScreen); + psc->__driScreen = NULL; + if (psc->driver) + dlclose(psc->driver); +} + +static __GLXDRIscreen * +driCreateScreen(__GLXscreenConfigs * psc, int screen, + __GLXdisplayPrivate * priv) +{ + __GLXDRIdisplayPrivate *pdp; + __GLXDRIscreen *psp; + const __DRIextension **extensions; + char *driverName; + int i; + + psp = Xcalloc(1, sizeof *psp); + if (psp == NULL) + return NULL; + + /* Initialize per screen dynamic client GLX extensions */ + psc->ext_list_first_time = GL_TRUE; + + if (!driGetDriverName(priv->dpy, screen, &driverName)) { + Xfree(psp); + return NULL; + } + + psc->driver = driOpenDriver(driverName); + Xfree(driverName); + if (psc->driver == NULL) { + Xfree(psp); + return NULL; + } + + extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS); + if (extensions == NULL) { + ErrorMessageF("driver exports no extensions (%s)\n", dlerror()); + Xfree(psp); + return NULL; + } + + 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_LEGACY) == 0) + psc->legacy = (__DRIlegacyExtension *) extensions[i]; + } + + if (psc->core == NULL || psc->legacy == NULL) { + Xfree(psp); + return NULL; + } + + pdp = (__GLXDRIdisplayPrivate *) priv->driDisplay; + psc->__driScreen = CallCreateNewScreen(psc->dpy, screen, psc, pdp); + if (psc->__driScreen == NULL) { + dlclose(psc->driver); + Xfree(psp); + return NULL; + } + + driBindExtensions(psc); + driBindCommonExtensions(psc); + + if (psc->driCopySubBuffer) + psp->copySubBuffer = driCopySubBuffer; + + psp->destroyScreen = driDestroyScreen; + psp->createContext = driCreateContext; + psp->createDrawable = driCreateDrawable; + psp->swapBuffers = driSwapBuffers; + psp->waitX = NULL; + psp->waitGL = NULL; + + return psp; +} + +/* Called from __glXFreeDisplayPrivate. + */ +static void +driDestroyDisplay(__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 * +driCreateDisplay(Display * dpy) +{ + __GLXDRIdisplayPrivate *pdpyp; + int eventBase, errorBase; + int major, minor, patch; + + if (!XF86DRIQueryExtension(dpy, &eventBase, &errorBase)) { + return NULL; + } + + if (!XF86DRIQueryVersion(dpy, &major, &minor, &patch)) { + return NULL; + } + + pdpyp = Xmalloc(sizeof *pdpyp); + if (!pdpyp) { + return NULL; + } + + pdpyp->driMajor = major; + pdpyp->driMinor = minor; + pdpyp->driPatch = patch; + + pdpyp->base.destroyDisplay = driDestroyDisplay; + pdpyp->base.createScreen = driCreateScreen; + + return &pdpyp->base; +} + +#endif /* GLX_DIRECT_RENDERING */ |