--- /dev/null
+/*
+ * 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.
+ */
+
+#ifdef GLX_DIRECT_RENDERING
+
+#include <X11/Xlib.h>
+#include "glheader.h"
+#include "glxclient.h"
+#include "glcontextmodes.h"
+#include <dlfcn.h>
+#include "dri_common.h"
+
+typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate;
+typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate;
+typedef struct __GLXDRIdrawablePrivateRec __GLXDRIdrawablePrivate;
+
+struct __GLXDRIdisplayPrivateRec {
+ __GLXDRIdisplay base;
+};
+
+struct __GLXDRIcontextPrivateRec {
+ __GLXDRIcontext base;
+ __DRIcontext *driContext;
+ __GLXscreenConfigs *psc;
+};
+
+struct __GLXDRIdrawablePrivateRec {
+ __GLXDRIdrawable base;
+
+ GC gc;
+ GC swapgc;
+
+ XVisualInfo *visinfo;
+ XImage *ximage;
+ int bpp;
+};
+
+/**
+ * swrast loader functions
+ */
+
+static Bool XCreateDrawable(__GLXDRIdrawablePrivate *pdp,
+ Display *dpy, XID drawable, int visualid)
+{
+ XGCValues gcvalues;
+ long visMask;
+ XVisualInfo visTemp;
+ int num_visuals;
+
+ /* create GC's */
+ pdp->gc = XCreateGC(dpy, drawable, 0, NULL);
+ pdp->swapgc = XCreateGC(dpy, drawable, 0, NULL);
+
+ gcvalues.function = GXcopy;
+ gcvalues.graphics_exposures = False;
+ XChangeGC(dpy, pdp->gc, GCFunction, &gcvalues);
+ XChangeGC(dpy, pdp->swapgc, GCFunction, &gcvalues);
+ XChangeGC(dpy, pdp->swapgc, GCGraphicsExposures, &gcvalues);
+
+ /* create XImage */
+ visTemp.screen = DefaultScreen(dpy);
+ visTemp.visualid = visualid;
+ visMask = (VisualScreenMask | VisualIDMask);
+ pdp->visinfo = XGetVisualInfo(dpy, visMask, &visTemp, &num_visuals);
+
+ pdp->ximage = XCreateImage(dpy,
+ pdp->visinfo->visual,
+ pdp->visinfo->depth,
+ ZPixmap, 0, /* format, offset */
+ NULL, /* data */
+ 0, 0, /* size */
+ 32, /* bitmap_pad */
+ 0); /* bytes_per_line */
+
+ /* get the true number of bits per pixel */
+ pdp->bpp = pdp->ximage->bits_per_pixel;
+
+ return True;
+}
+
+static void XDestroyDrawable(__GLXDRIdrawablePrivate *pdp,
+ Display *dpy, XID drawable)
+{
+ XDestroyImage(pdp->ximage);
+ XFree(pdp->visinfo);
+
+ XFreeGC(dpy, pdp->gc);
+ XFreeGC(dpy, pdp->swapgc);
+}
+
+static void
+swrastGetDrawableInfo(__DRIdrawable *draw,
+ int *x, int *y, int *w, int *h,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawablePrivate *pdp = loaderPrivate;
+ __GLXDRIdrawable *pdraw = &(pdp->base);;
+ Display *dpy = pdraw->psc->dpy;
+ Drawable drawable;
+
+ Window root;
+ Status stat;
+ unsigned int bw, depth;
+
+ drawable = pdraw->xDrawable;
+
+ stat = XGetGeometry(dpy, drawable, &root,
+ x, y, (unsigned int *)w, (unsigned int *)h,
+ &bw, &depth);
+}
+
+static inline int
+bytes_per_line(int w, int bpp, unsigned mul)
+{
+ unsigned mask = mul - 1;
+
+ return ((w * bpp + mask) & ~mask) / 8;
+}
+
+static void
+swrastPutImage(__DRIdrawable *draw, int op,
+ int x, int y, int w, int h, char *data,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawablePrivate *pdp = loaderPrivate;
+ __GLXDRIdrawable *pdraw = &(pdp->base);;
+ Display *dpy = pdraw->psc->dpy;
+ Drawable drawable;
+ XImage *ximage;
+ GC gc;
+
+ switch (op) {
+ case __DRI_SWRAST_IMAGE_OP_DRAW:
+ gc = pdp->gc;
+ break;
+ case __DRI_SWRAST_IMAGE_OP_SWAP:
+ gc = pdp->swapgc;
+ break;
+ default:
+ return;
+ }
+
+ drawable = pdraw->xDrawable;
+
+ ximage = pdp->ximage;
+ ximage->data = data;
+ ximage->width = w;
+ ximage->height = h;
+ ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32);
+
+ XPutImage(dpy, drawable, gc, ximage, 0, 0, x, y, w, h);
+
+ ximage->data = NULL;
+}
+
+static void
+swrastGetImage(__DRIdrawable *draw,
+ int x, int y, int w, int h, char *data,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawablePrivate *pdp = loaderPrivate;
+ __GLXDRIdrawable *pdraw = &(pdp->base);;
+ Display *dpy = pdraw->psc->dpy;
+ Drawable drawable;
+ XImage *ximage;
+
+ drawable = pdraw->xDrawable;
+
+ ximage = pdp->ximage;
+ ximage->data = data;
+ ximage->width = w;
+ ximage->height = h;
+ ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32);
+
+ XGetSubImage(dpy, drawable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0);
+
+ ximage->data = NULL;
+}
+
+static const __DRIswrastLoaderExtension swrastLoaderExtension = {
+ { __DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION },
+ swrastGetDrawableInfo,
+ swrastPutImage,
+ swrastGetImage
+};
+
+static const __DRIextension *loader_extensions[] = {
+ &systemTimeExtension.base,
+ &swrastLoaderExtension.base,
+ NULL
+};
+
+/**
+ * GLXDRI functions
+ */
+
+static void driDestroyContext(__GLXDRIcontext *context,
+ __GLXscreenConfigs *psc, Display *dpy)
+{
+ __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context;
+ const __DRIcoreExtension *core = pcp->psc->core;
+
+ (*core->destroyContext)(pcp->driContext);
+
+ 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;
+ __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode;
+ const __DRIcoreExtension *core = psc->core;
+ __DRIcontext *shared = NULL;
+
+ 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;
+ pcp->driContext =
+ (*core->createNewContext)(psc->__driScreen,
+ config->driConfig, shared, pcp);
+ if (pcp->driContext == NULL) {
+ Xfree(pcp);
+ return NULL;
+ }
+
+ pcp->base.destroyContext = driDestroyContext;
+ pcp->base.bindContext = driBindContext;
+ pcp->base.unbindContext = driUnbindContext;
+
+ return &pcp->base;
+}
+
+static void driDestroyDrawable(__GLXDRIdrawable *pdraw)
+{
+ __GLXDRIdrawablePrivate *pdp = (__GLXDRIdrawablePrivate *) pdraw;
+ const __DRIcoreExtension *core = pdraw->psc->core;
+
+ (*core->destroyDrawable)(pdraw->driDrawable);
+
+ XDestroyDrawable(pdp, pdraw->psc->dpy, pdraw->drawable);
+ Xfree(pdp);
+}
+
+static __GLXDRIdrawable *driCreateDrawable(__GLXscreenConfigs *psc,
+ XID xDrawable,
+ GLXDrawable drawable,
+ const __GLcontextModes *modes)
+{
+ __GLXDRIdrawable *pdraw;
+ __GLXDRIdrawablePrivate *pdp;
+ __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes;
+ const __DRIswrastExtension *swrast = psc->swrast;
+
+ /* Old dri can't handle GLX 1.3+ drawable constructors. */
+ if (xDrawable != drawable)
+ return NULL;
+
+ pdp = Xmalloc(sizeof(*pdp));
+ if (!pdp)
+ return NULL;
+
+ pdraw = &(pdp->base);
+ pdraw->xDrawable = xDrawable;
+ pdraw->drawable = drawable;
+ pdraw->psc = psc;
+
+ XCreateDrawable(pdp, psc->dpy, xDrawable, modes->visualID);
+
+ /* Create a new drawable */
+ pdraw->driDrawable =
+ (*swrast->createNewDrawable)(psc->__driScreen,
+ config->driConfig,
+ pdp);
+
+ if (!pdraw->driDrawable) {
+ XDestroyDrawable(pdp, psc->dpy, xDrawable);
+ Xfree(pdp);
+ return NULL;
+ }
+
+ pdraw->destroyDrawable = driDestroyDrawable;
+
+ return pdraw;
+}
+
+static void driDestroyScreen(__GLXscreenConfigs *psc)
+{
+ /* Free the direct rendering per screen data */
+ (*psc->core->destroyScreen)(psc->__driScreen);
+ psc->__driScreen = NULL;
+ if (psc->driver)
+ dlclose(psc->driver);
+}
+
+static __GLXDRIscreen *driCreateScreen(__GLXscreenConfigs *psc, int screen,
+ __GLXdisplayPrivate *priv)
+{
+ __GLXDRIscreen *psp;
+ const __DRIconfig **driver_configs;
+ const __DRIextension **extensions;
+ const char *driverName = "swrast";
+ 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;
+
+ 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 (strcmp(extensions[i]->name, __DRI_SWRAST) == 0)
+ psc->swrast = (__DRIswrastExtension *) extensions[i];
+ }
+
+ if (psc->core == NULL || psc->swrast == NULL) {
+ ErrorMessageF("core dri extension not found\n");
+ goto handle_error;
+ }
+
+ psc->__driScreen =
+ psc->swrast->createNewScreen(screen,
+ loader_extensions, &driver_configs, psc);
+ if (psc->__driScreen == NULL) {
+ ErrorMessageF("failed to create dri screen\n");
+ goto handle_error;
+ }
+
+ driBindExtensions(psc);
+
+ psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
+ psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
+
+ psp->destroyScreen = driDestroyScreen;
+ psp->createContext = driCreateContext;
+ psp->createDrawable = driCreateDrawable;
+
+ return psp;
+
+ handle_error:
+ Xfree(psp);
+
+ if (psc->driver)
+ dlclose(psc->driver);
+
+ ErrorMessageF("reverting to indirect rendering\n");
+
+ return NULL;
+}
+
+/* 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 *driswCreateDisplay(Display *dpy)
+{
+ __GLXDRIdisplayPrivate *pdpyp;
+
+ pdpyp = Xmalloc(sizeof *pdpyp);
+ if (pdpyp == NULL)
+ return NULL;
+
+ pdpyp->base.destroyDisplay = driDestroyDisplay;
+ pdpyp->base.createScreen = driCreateScreen;
+
+ return &pdpyp->base;
+}
+
+#endif /* GLX_DIRECT_RENDERING */
projects / mesa.git / commitdiff