/* * Copyright 2008 George Sapountzis * * 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, sublicense, * 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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. */ #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) #include #include "glxclient.h" #include #include "dri_common.h" #include "drisw_priv.h" #include #include static int xshm_error = 0; static int xshm_opcode = -1; /** * Catches potential Xlib errors. */ static int handle_xerror(Display *dpy, XErrorEvent *event) { (void) dpy; assert(xshm_opcode != -1); if (event->request_code != xshm_opcode) return 0; xshm_error = event->error_code; return 0; } static Bool XCreateDrawable(struct drisw_drawable * pdp, int shmid, Display * dpy) { if (pdp->ximage) { XDestroyImage(pdp->ximage); pdp->ximage = NULL; if ((pdp->shminfo.shmid > 0) && (shmid != pdp->shminfo.shmid)) XShmDetach(dpy, &pdp->shminfo); } if (!xshm_error && shmid >= 0) { pdp->shminfo.shmid = shmid; pdp->ximage = XShmCreateImage(dpy, NULL, pdp->xDepth, ZPixmap, /* format */ NULL, /* data */ &pdp->shminfo, /* shminfo */ 0, 0); /* width, height */ if (pdp->ximage != NULL) { int (*old_handler)(Display *, XErrorEvent *); /* dispatch pending errors */ XSync(dpy, False); old_handler = XSetErrorHandler(handle_xerror); /* This may trigger the X protocol error we're ready to catch: */ XShmAttach(dpy, &pdp->shminfo); XSync(dpy, False); if (xshm_error) { /* we are on a remote display, this error is normal, don't print it */ XDestroyImage(pdp->ximage); pdp->ximage = NULL; } (void) XSetErrorHandler(old_handler); } } if (pdp->ximage == NULL) { pdp->shminfo.shmid = -1; pdp->ximage = XCreateImage(dpy, NULL, pdp->xDepth, ZPixmap, 0, /* format, offset */ NULL, /* data */ 0, 0, /* width, height */ 32, /* bitmap_pad */ 0); /* bytes_per_line */ } /** * swrast does not handle 24-bit depth with 24 bpp, so let X do the * the conversion for us. */ if (pdp->ximage->bits_per_pixel == 24) pdp->ximage->bits_per_pixel = 32; return True; } static void XDestroyDrawable(struct drisw_drawable * pdp, Display * dpy, XID drawable) { if (pdp->ximage) XDestroyImage(pdp->ximage); if (pdp->shminfo.shmid > 0) XShmDetach(dpy, &pdp->shminfo); XFreeGC(dpy, pdp->gc); } /** * swrast loader functions */ static void swrastGetDrawableInfo(__DRIdrawable * draw, int *x, int *y, int *w, int *h, void *loaderPrivate) { struct drisw_drawable *pdp = loaderPrivate; __GLXDRIdrawable *pdraw = &(pdp->base); Display *dpy = pdraw->psc->dpy; Drawable drawable; Window root; unsigned uw, uh, bw, depth; drawable = pdraw->xDrawable; XGetGeometry(dpy, drawable, &root, x, y, &uw, &uh, &bw, &depth); *w = uw; *h = uh; } /** * Align renderbuffer pitch. * * This should be chosen by the driver and the loader (libGL, xserver/glx) * should use the driver provided pitch. * * It seems that the xorg loader (that is the xserver loading swrast_dri for * indirect rendering, not client-side libGL) requires that the pitch is * exactly the image width padded to 32 bits. XXX * * The above restriction can probably be overcome by using ScratchPixmap and * CopyArea in the xserver, similar to ShmPutImage, and setting the width of * the scratch pixmap to 'pitch / cpp'. */ static inline int bytes_per_line(unsigned pitch_bits, unsigned mul) { unsigned mask = mul - 1; return ((pitch_bits + mask) & ~mask) / 8; } static void swrastXPutImage(__DRIdrawable * draw, int op, int srcx, int srcy, int x, int y, int w, int h, int stride, int shmid, char *data, void *loaderPrivate) { struct drisw_drawable *pdp = loaderPrivate; __GLXDRIdrawable *pdraw = &(pdp->base); Display *dpy = pdraw->psc->dpy; Drawable drawable; XImage *ximage; GC gc = pdp->gc; if (!pdp->ximage || shmid != pdp->shminfo.shmid) { if (!XCreateDrawable(pdp, shmid, dpy)) return; } drawable = pdraw->xDrawable; ximage = pdp->ximage; ximage->bytes_per_line = stride ? stride : bytes_per_line(w * ximage->bits_per_pixel, 32); ximage->data = data; ximage->width = ximage->bytes_per_line / ((ximage->bits_per_pixel + 7)/ 8); ximage->height = h; if (pdp->shminfo.shmid >= 0) { XShmPutImage(dpy, drawable, gc, ximage, srcx, srcy, x, y, w, h, False); XSync(dpy, False); } else { XPutImage(dpy, drawable, gc, ximage, srcx, srcy, x, y, w, h); } ximage->data = NULL; } static void swrastPutImageShm(__DRIdrawable * draw, int op, int x, int y, int w, int h, int stride, int shmid, char *shmaddr, unsigned offset, void *loaderPrivate) { struct drisw_drawable *pdp = loaderPrivate; pdp->shminfo.shmaddr = shmaddr; swrastXPutImage(draw, op, 0, 0, x, y, w, h, stride, shmid, shmaddr + offset, loaderPrivate); } static void swrastPutImageShm2(__DRIdrawable * draw, int op, int x, int y, int w, int h, int stride, int shmid, char *shmaddr, unsigned offset, void *loaderPrivate) { struct drisw_drawable *pdp = loaderPrivate; pdp->shminfo.shmaddr = shmaddr; swrastXPutImage(draw, op, x, 0, x, y, w, h, stride, shmid, shmaddr + offset, loaderPrivate); } static void swrastPutImage2(__DRIdrawable * draw, int op, int x, int y, int w, int h, int stride, char *data, void *loaderPrivate) { swrastXPutImage(draw, op, 0, 0, x, y, w, h, stride, -1, data, loaderPrivate); } static void swrastPutImage(__DRIdrawable * draw, int op, int x, int y, int w, int h, char *data, void *loaderPrivate) { swrastXPutImage(draw, op, 0, 0, x, y, w, h, 0, -1, data, loaderPrivate); } static void swrastGetImage2(__DRIdrawable * read, int x, int y, int w, int h, int stride, char *data, void *loaderPrivate) { struct drisw_drawable *prp = loaderPrivate; __GLXDRIdrawable *pread = &(prp->base); Display *dpy = pread->psc->dpy; Drawable readable; XImage *ximage; if (!prp->ximage || prp->shminfo.shmid >= 0) { if (!XCreateDrawable(prp, -1, dpy)) return; } readable = pread->xDrawable; ximage = prp->ximage; ximage->data = data; ximage->width = w; ximage->height = h; ximage->bytes_per_line = stride ? stride : bytes_per_line(w * ximage->bits_per_pixel, 32); XGetSubImage(dpy, readable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0); ximage->data = NULL; } static void swrastGetImage(__DRIdrawable * read, int x, int y, int w, int h, char *data, void *loaderPrivate) { swrastGetImage2(read, x, y, w, h, 0, data, loaderPrivate); } static GLboolean swrastGetImageShm2(__DRIdrawable * read, int x, int y, int w, int h, int shmid, void *loaderPrivate) { struct drisw_drawable *prp = loaderPrivate; __GLXDRIdrawable *pread = &(prp->base); Display *dpy = pread->psc->dpy; Drawable readable; XImage *ximage; if (!prp->ximage || shmid != prp->shminfo.shmid) { if (!XCreateDrawable(prp, shmid, dpy)) return GL_FALSE; } if (prp->shminfo.shmid == -1) return GL_FALSE; readable = pread->xDrawable; ximage = prp->ximage; ximage->data = prp->shminfo.shmaddr; /* no offset */ ximage->width = w; ximage->height = h; ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32); XShmGetImage(dpy, readable, ximage, x, y, ~0L); return GL_TRUE; } static void swrastGetImageShm(__DRIdrawable * read, int x, int y, int w, int h, int shmid, void *loaderPrivate) { swrastGetImageShm2(read, x, y, w, h, shmid, loaderPrivate); } static const __DRIswrastLoaderExtension swrastLoaderExtension_shm = { .base = {__DRI_SWRAST_LOADER, 6 }, .getDrawableInfo = swrastGetDrawableInfo, .putImage = swrastPutImage, .getImage = swrastGetImage, .putImage2 = swrastPutImage2, .getImage2 = swrastGetImage2, .putImageShm = swrastPutImageShm, .getImageShm = swrastGetImageShm, .putImageShm2 = swrastPutImageShm2, .getImageShm2 = swrastGetImageShm2, }; static const __DRIextension *loader_extensions_shm[] = { &swrastLoaderExtension_shm.base, NULL }; static const __DRIswrastLoaderExtension swrastLoaderExtension = { .base = {__DRI_SWRAST_LOADER, 3 }, .getDrawableInfo = swrastGetDrawableInfo, .putImage = swrastPutImage, .getImage = swrastGetImage, .putImage2 = swrastPutImage2, .getImage2 = swrastGetImage2, }; static const __DRIextension *loader_extensions_noshm[] = { &swrastLoaderExtension.base, NULL }; /** * GLXDRI functions */ static void drisw_destroy_context(struct glx_context *context) { struct drisw_context *pcp = (struct drisw_context *) context; struct drisw_screen *psc = (struct drisw_screen *) context->psc; driReleaseDrawables(&pcp->base); free((char *) context->extensions); (*psc->core->destroyContext) (pcp->driContext); free(pcp); } static int drisw_bind_context(struct glx_context *context, struct glx_context *old, GLXDrawable draw, GLXDrawable read) { struct drisw_context *pcp = (struct drisw_context *) context; struct drisw_screen *psc = (struct drisw_screen *) pcp->base.psc; struct drisw_drawable *pdraw, *pread; pdraw = (struct drisw_drawable *) driFetchDrawable(context, draw); pread = (struct drisw_drawable *) driFetchDrawable(context, read); driReleaseDrawables(&pcp->base); if ((*psc->core->bindContext) (pcp->driContext, pdraw ? pdraw->driDrawable : NULL, pread ? pread->driDrawable : NULL)) return Success; return GLXBadContext; } static void drisw_unbind_context(struct glx_context *context, struct glx_context *new) { struct drisw_context *pcp = (struct drisw_context *) context; struct drisw_screen *psc = (struct drisw_screen *) pcp->base.psc; (*psc->core->unbindContext) (pcp->driContext); } static void drisw_bind_tex_image(Display * dpy, GLXDrawable drawable, int buffer, const int *attrib_list) { struct glx_context *gc = __glXGetCurrentContext(); struct drisw_context *pcp = (struct drisw_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct drisw_drawable *pdraw = (struct drisw_drawable *) base; struct drisw_screen *psc; __glXInitialize(dpy); if (pdraw != NULL) { psc = (struct drisw_screen *) base->psc; if (!psc->texBuffer) return; 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 drisw_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) { struct glx_context *gc = __glXGetCurrentContext(); struct drisw_context *pcp = (struct drisw_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct glx_display *dpyPriv = __glXInitialize(dpy); struct drisw_drawable *pdraw = (struct drisw_drawable *) base; struct drisw_screen *psc; if (dpyPriv != NULL && pdraw != NULL) { psc = (struct drisw_screen *) base->psc; if (!psc->texBuffer) return; if (psc->texBuffer->base.version >= 3 && psc->texBuffer->releaseTexBuffer != NULL) { (*psc->texBuffer->releaseTexBuffer) (pcp->driContext, pdraw->base.textureTarget, pdraw->driDrawable); } } } static const struct glx_context_vtable drisw_context_vtable = { .destroy = drisw_destroy_context, .bind = drisw_bind_context, .unbind = drisw_unbind_context, .wait_gl = NULL, .wait_x = NULL, .use_x_font = DRI_glXUseXFont, .bind_tex_image = drisw_bind_tex_image, .release_tex_image = drisw_release_tex_image, .get_proc_address = NULL, }; static struct glx_context * drisw_create_context(struct glx_screen *base, struct glx_config *config_base, struct glx_context *shareList, int renderType) { struct drisw_context *pcp, *pcp_shared; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; struct drisw_screen *psc = (struct drisw_screen *) base; __DRIcontext *shared = NULL; if (!psc->base.driScreen) return NULL; /* Check the renderType value */ if (!validate_renderType_against_config(config_base, renderType)) return NULL; if (shareList) { /* If the shareList context is not a DRISW context, we cannot possibly * create a DRISW context that shares it. */ if (shareList->vtable->destroy != drisw_destroy_context) { return NULL; } pcp_shared = (struct drisw_context *) shareList; shared = pcp_shared->driContext; } pcp = calloc(1, sizeof *pcp); if (pcp == NULL) return NULL; if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { free(pcp); return NULL; } pcp->base.renderType = renderType; pcp->driContext = (*psc->core->createNewContext) (psc->driScreen, config->driConfig, shared, pcp); if (pcp->driContext == NULL) { free(pcp); return NULL; } pcp->base.vtable = &drisw_context_vtable; return &pcp->base; } static struct glx_context * drisw_create_context_attribs(struct glx_screen *base, struct glx_config *config_base, struct glx_context *shareList, unsigned num_attribs, const uint32_t *attribs, unsigned *error) { struct drisw_context *pcp, *pcp_shared; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; struct drisw_screen *psc = (struct drisw_screen *) base; __DRIcontext *shared = NULL; uint32_t minor_ver; uint32_t major_ver; uint32_t renderType; uint32_t flags; unsigned api; int reset; int release; uint32_t ctx_attribs[2 * 5]; unsigned num_ctx_attribs = 0; if (!psc->base.driScreen) return NULL; if (psc->swrast->base.version < 3) return NULL; /* Remap the GLX tokens to DRI2 tokens. */ if (!dri2_convert_glx_attribs(num_attribs, attribs, &major_ver, &minor_ver, &renderType, &flags, &api, &reset, &release, error)) return NULL; if (!dri2_check_no_error(flags, shareList, major_ver, error)) return NULL; /* Check the renderType value */ if (!validate_renderType_against_config(config_base, renderType)) { return NULL; } if (reset != __DRI_CTX_RESET_NO_NOTIFICATION) return NULL; if (release != __DRI_CTX_RELEASE_BEHAVIOR_FLUSH && release != __DRI_CTX_RELEASE_BEHAVIOR_NONE) return NULL; if (shareList) { pcp_shared = (struct drisw_context *) shareList; shared = pcp_shared->driContext; } pcp = calloc(1, sizeof *pcp); if (pcp == NULL) return NULL; if (!glx_context_init(&pcp->base, &psc->base, config_base)) { free(pcp); return NULL; } ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION; ctx_attribs[num_ctx_attribs++] = major_ver; ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION; ctx_attribs[num_ctx_attribs++] = minor_ver; if (release != __DRI_CTX_RELEASE_BEHAVIOR_FLUSH) { ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR; ctx_attribs[num_ctx_attribs++] = release; } if (flags != 0) { ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS; /* The current __DRI_CTX_FLAG_* values are identical to the * GLX_CONTEXT_*_BIT values. */ ctx_attribs[num_ctx_attribs++] = flags; if (flags & __DRI_CTX_FLAG_NO_ERROR) pcp->base.noError = GL_TRUE; } pcp->base.renderType = renderType; pcp->driContext = (*psc->swrast->createContextAttribs) (psc->driScreen, api, config ? config->driConfig : 0, shared, num_ctx_attribs / 2, ctx_attribs, error, pcp); if (pcp->driContext == NULL) { free(pcp); return NULL; } pcp->base.vtable = &drisw_context_vtable; return &pcp->base; } static void driswDestroyDrawable(__GLXDRIdrawable * pdraw) { struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw; struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc; (*psc->core->destroyDrawable) (pdp->driDrawable); XDestroyDrawable(pdp, pdraw->psc->dpy, pdraw->drawable); free(pdp); } static __GLXDRIdrawable * driswCreateDrawable(struct glx_screen *base, XID xDrawable, GLXDrawable drawable, struct glx_config *modes) { struct drisw_drawable *pdp; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; struct drisw_screen *psc = (struct drisw_screen *) base; const __DRIswrastExtension *swrast = psc->swrast; Display *dpy = psc->base.dpy; pdp = calloc(1, sizeof(*pdp)); if (!pdp) return NULL; pdp->base.xDrawable = xDrawable; pdp->base.drawable = drawable; pdp->base.psc = &psc->base; pdp->config = modes; pdp->gc = XCreateGC(dpy, xDrawable, 0, NULL); pdp->xDepth = 0; /* Use the visual depth, if this fbconfig corresponds to a visual */ if (pdp->config->visualID != 0) { int matches = 0; XVisualInfo *visinfo, template; template.visualid = pdp->config->visualID; template.screen = pdp->config->screen; visinfo = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &template, &matches); if (visinfo && matches) { pdp->xDepth = visinfo->depth; XFree(visinfo); } } /* Otherwise, or if XGetVisualInfo failed, ask the server */ if (pdp->xDepth == 0) { Window root; int x, y; unsigned uw, uh, bw, depth; XGetGeometry(dpy, xDrawable, &root, &x, &y, &uw, &uh, &bw, &depth); pdp->xDepth = depth; } /* Create a new drawable */ pdp->driDrawable = (*swrast->createNewDrawable) (psc->driScreen, config->driConfig, pdp); if (!pdp->driDrawable) { XDestroyDrawable(pdp, psc->base.dpy, xDrawable); free(pdp); return NULL; } pdp->base.destroyDrawable = driswDestroyDrawable; return &pdp->base; } static int64_t driswSwapBuffers(__GLXDRIdrawable * pdraw, int64_t target_msc, int64_t divisor, int64_t remainder, Bool flush) { struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw; struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc; (void) target_msc; (void) divisor; (void) remainder; if (flush) { glFlush(); } (*psc->core->swapBuffers) (pdp->driDrawable); return 0; } static void driswCopySubBuffer(__GLXDRIdrawable * pdraw, int x, int y, int width, int height, Bool flush) { struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw; struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc; if (flush) { glFlush(); } (*psc->copySubBuffer->copySubBuffer) (pdp->driDrawable, x, y, width, height); } static void driswDestroyScreen(struct glx_screen *base) { struct drisw_screen *psc = (struct drisw_screen *) base; /* Free the direct rendering per screen data */ (*psc->core->destroyScreen) (psc->driScreen); driDestroyConfigs(psc->driver_configs); psc->driScreen = NULL; if (psc->driver) dlclose(psc->driver); free(psc); } #define SWRAST_DRIVER_NAME "swrast" static const struct glx_screen_vtable drisw_screen_vtable = { .create_context = drisw_create_context, .create_context_attribs = drisw_create_context_attribs, .query_renderer_integer = drisw_query_renderer_integer, .query_renderer_string = drisw_query_renderer_string, }; static void driswBindExtensions(struct drisw_screen *psc, const __DRIextension **extensions) { int i; __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read"); if (psc->swrast->base.version >= 3) { __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context"); __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_profile"); /* DRISW version >= 2 implies support for OpenGL ES. */ __glXEnableDirectExtension(&psc->base, "GLX_EXT_create_context_es_profile"); __glXEnableDirectExtension(&psc->base, "GLX_EXT_create_context_es2_profile"); } if (psc->copySubBuffer) __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer"); /* FIXME: Figure out what other extensions can be ported here from dri2. */ 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"); } /* DRISW version 3 is also required because GLX_MESA_query_renderer * requires GLX_ARB_create_context_profile. */ if (psc->swrast->base.version >= 3 && strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) { psc->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i]; __glXEnableDirectExtension(&psc->base, "GLX_MESA_query_renderer"); } if (strcmp(extensions[i]->name, __DRI2_FLUSH_CONTROL) == 0) { __glXEnableDirectExtension(&psc->base, "GLX_ARB_context_flush_control"); } } } static int check_xshm(Display *dpy) { int (*old_handler)(Display *, XErrorEvent *); int ignore; XShmSegmentInfo info = { 0, }; if (!XQueryExtension(dpy, "MIT-SHM", &xshm_opcode, &ignore, &ignore)) return False; old_handler = XSetErrorHandler(handle_xerror); XShmDetach(dpy, &info); XSync(dpy, False); (void) XSetErrorHandler(old_handler); /* BadRequest means we're a remote client. If we were local we'd * expect BadValue since 'info' has an invalid segment name. */ if (xshm_error == BadRequest) return False; xshm_error = 0; return True; } static struct glx_screen * driswCreateScreen(int screen, struct glx_display *priv) { __GLXDRIscreen *psp; const __DRIconfig **driver_configs; const __DRIextension **extensions; struct drisw_screen *psc; struct glx_config *configs = NULL, *visuals = NULL; int i; const __DRIextension **loader_extensions_local; psc = calloc(1, sizeof *psc); if (psc == NULL) return NULL; if (!glx_screen_init(&psc->base, screen, priv)) { free(psc); return NULL; } extensions = driOpenDriver(SWRAST_DRIVER_NAME, &psc->driver); if (extensions == NULL) goto handle_error; if (!check_xshm(psc->base.dpy)) loader_extensions_local = loader_extensions_noshm; else loader_extensions_local = loader_extensions_shm; 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_SWRAST) == 0) psc->swrast = (__DRIswrastExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) psc->copySubBuffer = (__DRIcopySubBufferExtension *) extensions[i]; } if (psc->core == NULL || psc->swrast == NULL) { ErrorMessageF("core dri extension not found\n"); goto handle_error; } if (psc->swrast->base.version >= 4) { psc->driScreen = psc->swrast->createNewScreen2(screen, loader_extensions_local, extensions, &driver_configs, psc); } else { psc->driScreen = psc->swrast->createNewScreen(screen, loader_extensions_local, &driver_configs, psc); } if (psc->driScreen == NULL) { ErrorMessageF("failed to create dri screen\n"); goto handle_error; } extensions = psc->core->getExtensions(psc->driScreen); driswBindExtensions(psc, extensions); configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs); visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs); if (!configs || !visuals) { ErrorMessageF("No matching fbConfigs or visuals found\n"); goto handle_error; } glx_config_destroy_list(psc->base.configs); psc->base.configs = configs; glx_config_destroy_list(psc->base.visuals); psc->base.visuals = visuals; psc->driver_configs = driver_configs; psc->base.vtable = &drisw_screen_vtable; psp = &psc->vtable; psc->base.driScreen = psp; psp->destroyScreen = driswDestroyScreen; psp->createDrawable = driswCreateDrawable; psp->swapBuffers = driswSwapBuffers; if (psc->copySubBuffer) psp->copySubBuffer = driswCopySubBuffer; return &psc->base; handle_error: if (configs) glx_config_destroy_list(configs); if (visuals) glx_config_destroy_list(visuals); if (psc->driScreen) psc->core->destroyScreen(psc->driScreen); psc->driScreen = NULL; if (psc->driver) dlclose(psc->driver); glx_screen_cleanup(&psc->base); free(psc); CriticalErrorMessageF("failed to load driver: %s\n", SWRAST_DRIVER_NAME); return NULL; } /* Called from __glXFreeDisplayPrivate. */ static void driswDestroyDisplay(__GLXDRIdisplay * dpy) { free(dpy); } /* * Allocate, initialize and return a __DRIdisplayPrivate object. * This is called from __glXInitialize() when we are given a new * display pointer. */ _X_HIDDEN __GLXDRIdisplay * driswCreateDisplay(Display * dpy) { struct drisw_display *pdpyp; pdpyp = malloc(sizeof *pdpyp); if (pdpyp == NULL) return NULL; pdpyp->base.destroyDisplay = driswDestroyDisplay; pdpyp->base.createScreen = driswCreateScreen; return &pdpyp->base; } #endif /* GLX_DIRECT_RENDERING */