Retire miniglx and move the actual glx code up to src/glx

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 00000000000..15a3ea59073
--- /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 ([email protected])
+ */
+
+#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 */