| /* |
| * 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 <xcb/xproto.h> |
| #include <xcb/shm.h> |
| #include <X11/Xlib.h> |
| #include <X11/Xlib-xcb.h> |
| #include "glxclient.h" |
| #include <dlfcn.h> |
| #include "dri_common.h" |
| #include "drisw_priv.h" |
| #include <X11/extensions/shmproto.h> |
| #include <assert.h> |
| |
| 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_wait_gl(struct glx_context *context) |
| { |
| glFinish(); |
| } |
| |
| static void |
| drisw_wait_x(struct glx_context *context) |
| { |
| XSync(context->currentDpy, False); |
| } |
| |
| static void |
| drisw_bind_tex_image(__GLXDRIdrawable *base, |
| int buffer, const int *attrib_list) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| struct drisw_context *pcp = (struct drisw_context *) gc; |
| struct drisw_drawable *pdraw = (struct drisw_drawable *) base; |
| struct drisw_screen *psc; |
| |
| 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(__GLXDRIdrawable *base, int buffer) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| struct drisw_context *pcp = (struct drisw_context *) gc; |
| struct drisw_drawable *pdraw = (struct drisw_drawable *) base; |
| struct drisw_screen *psc; |
| |
| if (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 = drisw_wait_gl, |
| .wait_x = drisw_wait_x, |
| }; |
| |
| 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) { |
| /* 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; |
| } |
| |
| 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 char * |
| drisw_get_driver_name(struct glx_screen *glx_screen) |
| { |
| return strdup(SWRAST_DRIVER_NAME); |
| } |
| |
| static const struct glx_screen_vtable drisw_screen_vtable = { |
| .create_context = dri_common_create_context, |
| .create_context_attribs = drisw_create_context_attribs, |
| .query_renderer_integer = drisw_query_renderer_integer, |
| .query_renderer_string = drisw_query_renderer_string, |
| .get_driver_name = drisw_get_driver_name, |
| }; |
| |
| 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"); |
| __glXEnableDirectExtension(&psc->base, "GLX_EXT_no_config_context"); |
| |
| /* 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_ROBUSTNESS) == 0) |
| __glXEnableDirectExtension(&psc->base, |
| "GLX_ARB_create_context_robustness"); |
| |
| if (strcmp(extensions[i]->name, __DRI2_FLUSH_CONTROL) == 0) { |
| __glXEnableDirectExtension(&psc->base, |
| "GLX_ARB_context_flush_control"); |
| } |
| |
| if (strcmp(extensions[i]->name, __DRI2_NO_ERROR) == 0) |
| __glXEnableDirectExtension(&psc->base, |
| "GLX_ARB_create_context_no_error"); |
| } |
| } |
| |
| static int |
| check_xshm(Display *dpy) |
| { |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| xcb_void_cookie_t cookie; |
| xcb_generic_error_t *error; |
| int ret = True; |
| int ignore; |
| |
| if (!XQueryExtension(dpy, "MIT-SHM", &xshm_opcode, &ignore, &ignore)) |
| return False; |
| |
| cookie = xcb_shm_detach_checked(c, 0); |
| if ((error = xcb_request_check(c, cookie))) { |
| /* BadRequest means we're a remote client. If we were local we'd |
| * expect BadValue since 'info' has an invalid segment name. |
| */ |
| if (error->error_code == BadRequest) |
| ret = False; |
| free(error); |
| } |
| |
| return ret; |
| } |
| |
| 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; |
| psp->bindTexImage = drisw_bind_tex_image; |
| psp->releaseTexImage = drisw_release_tex_image; |
| |
| 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 */ |
