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-rw-r--r--src/glx/dri2.c645
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diff --git a/src/glx/dri2.c b/src/glx/dri2.c
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+/*
+ * 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 (krh@redhat.com)
+ */
+
+
+#ifdef GLX_DIRECT_RENDERING
+
+#define NEED_REPLIES
+#include <stdio.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+#include <X11/extensions/dri2proto.h>
+#include "xf86drm.h"
+#include "dri2.h"
+#include "glxclient.h"
+#include "GL/glxext.h"
+
+/* Allow the build to work with an older versions of dri2proto.h and
+ * dri2tokens.h.
+ */
+#if DRI2_MINOR < 1
+#undef DRI2_MINOR
+#define DRI2_MINOR 1
+#define X_DRI2GetBuffersWithFormat 7
+#endif
+
+
+static char dri2ExtensionName[] = DRI2_NAME;
+static XExtensionInfo *dri2Info;
+static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
+
+static Bool
+DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire);
+static Status
+DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire);
+
+static /* const */ XExtensionHooks dri2ExtensionHooks = {
+ NULL, /* create_gc */
+ NULL, /* copy_gc */
+ NULL, /* flush_gc */
+ NULL, /* free_gc */
+ NULL, /* create_font */
+ NULL, /* free_font */
+ DRI2CloseDisplay, /* close_display */
+ DRI2WireToEvent, /* wire_to_event */
+ DRI2EventToWire, /* event_to_wire */
+ NULL, /* error */
+ NULL, /* error_string */
+};
+
+static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
+ dri2Info,
+ dri2ExtensionName,
+ &dri2ExtensionHooks,
+ 1, NULL)
+
+static Bool
+DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ XExtDisplayInfo *glx_info = __glXFindDisplay(dpy);
+ static int glx_event_base;
+ static Bool found_glx_info = False;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
+
+#ifdef X_DRI2SwapBuffers
+ case DRI2_BufferSwapComplete:
+ {
+ GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
+ xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
+ aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
+ aevent->type =
+ (glx_info->codes->first_event + GLX_BufferSwapComplete) & 0x75;
+ aevent->send_event = (awire->type & 0x80) != 0;
+ aevent->display = dpy;
+ aevent->drawable = awire->drawable;
+ switch (awire->event_type) {
+ case DRI2_EXCHANGE_COMPLETE:
+ aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
+ break;
+ case DRI2_BLIT_COMPLETE:
+ aevent->event_type = GLX_BLIT_COMPLETE_INTEL;
+ break;
+ case DRI2_FLIP_COMPLETE:
+ aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
+ break;
+ default:
+ /* unknown swap completion type */
+ return False;
+ }
+ aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
+ aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
+ aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
+ return True;
+ }
+#endif
+
+ default:
+ /* client doesn't support server event */
+ break;
+ }
+
+ return False;
+}
+
+/* We don't actually support this. It doesn't make sense for clients to
+ * send each other DRI2 events.
+ */
+static Status
+DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ switch (event->type) {
+ default:
+ /* client doesn't support server event */
+ break;
+ }
+
+ return Success;
+}
+
+Bool
+DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+
+ if (XextHasExtension(info)) {
+ *eventBase = info->codes->first_event;
+ *errorBase = info->codes->first_error;
+ return True;
+ }
+
+ return False;
+}
+
+Bool
+DRI2QueryVersion(Display * dpy, int *major, int *minor)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2QueryVersionReply rep;
+ xDRI2QueryVersionReq *req;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2QueryVersion, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2QueryVersion;
+ req->majorVersion = DRI2_MAJOR;
+ req->minorVersion = DRI2_MINOR;
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ *major = rep.majorVersion;
+ *minor = rep.minorVersion;
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return True;
+}
+
+Bool
+DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2ConnectReply rep;
+ xDRI2ConnectReq *req;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2Connect, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2Connect;
+ req->window = window;
+ req->driverType = DRI2DriverDRI;
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ *driverName = Xmalloc(rep.driverNameLength + 1);
+ if (*driverName == NULL) {
+ _XEatData(dpy,
+ ((rep.driverNameLength + 3) & ~3) +
+ ((rep.deviceNameLength + 3) & ~3));
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ _XReadPad(dpy, *driverName, rep.driverNameLength);
+ (*driverName)[rep.driverNameLength] = '\0';
+
+ *deviceName = Xmalloc(rep.deviceNameLength + 1);
+ if (*deviceName == NULL) {
+ Xfree(*driverName);
+ _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ _XReadPad(dpy, *deviceName, rep.deviceNameLength);
+ (*deviceName)[rep.deviceNameLength] = '\0';
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return True;
+}
+
+Bool
+DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2AuthenticateReq *req;
+ xDRI2AuthenticateReply rep;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2Authenticate, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2Authenticate;
+ req->window = window;
+ req->magic = magic;
+
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return rep.authenticated;
+}
+
+void
+DRI2CreateDrawable(Display * dpy, XID drawable)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2CreateDrawableReq *req;
+
+ XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
+
+ LockDisplay(dpy);
+ GetReq(DRI2CreateDrawable, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2CreateDrawable;
+ req->drawable = drawable;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+void
+DRI2DestroyDrawable(Display * dpy, XID drawable)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2DestroyDrawableReq *req;
+
+ XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
+
+ XSync(dpy, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2DestroyDrawable, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2DestroyDrawable;
+ req->drawable = drawable;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+DRI2Buffer *
+DRI2GetBuffers(Display * dpy, XID drawable,
+ int *width, int *height,
+ unsigned int *attachments, int count, int *outCount)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2GetBuffersReply rep;
+ xDRI2GetBuffersReq *req;
+ DRI2Buffer *buffers;
+ xDRI2Buffer repBuffer;
+ CARD32 *p;
+ int i;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReqExtra(DRI2GetBuffers, count * 4, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2GetBuffers;
+ req->drawable = drawable;
+ req->count = count;
+ p = (CARD32 *) & req[1];
+ for (i = 0; i < count; i++)
+ p[i] = attachments[i];
+
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return NULL;
+ }
+
+ *width = rep.width;
+ *height = rep.height;
+ *outCount = rep.count;
+
+ buffers = Xmalloc(rep.count * sizeof buffers[0]);
+ if (buffers == NULL) {
+ _XEatData(dpy, rep.count * sizeof repBuffer);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return NULL;
+ }
+
+ for (i = 0; i < rep.count; i++) {
+ _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
+ buffers[i].attachment = repBuffer.attachment;
+ buffers[i].name = repBuffer.name;
+ buffers[i].pitch = repBuffer.pitch;
+ buffers[i].cpp = repBuffer.cpp;
+ buffers[i].flags = repBuffer.flags;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return buffers;
+}
+
+
+DRI2Buffer *
+DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
+ int *width, int *height,
+ unsigned int *attachments, int count, int *outCount)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2GetBuffersReply rep;
+ xDRI2GetBuffersReq *req;
+ DRI2Buffer *buffers;
+ xDRI2Buffer repBuffer;
+ CARD32 *p;
+ int i;
+
+ XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2GetBuffersWithFormat;
+ req->drawable = drawable;
+ req->count = count;
+ p = (CARD32 *) & req[1];
+ for (i = 0; i < (count * 2); i++)
+ p[i] = attachments[i];
+
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return NULL;
+ }
+
+ *width = rep.width;
+ *height = rep.height;
+ *outCount = rep.count;
+
+ buffers = Xmalloc(rep.count * sizeof buffers[0]);
+ if (buffers == NULL) {
+ _XEatData(dpy, rep.count * sizeof repBuffer);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return NULL;
+ }
+
+ for (i = 0; i < rep.count; i++) {
+ _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
+ buffers[i].attachment = repBuffer.attachment;
+ buffers[i].name = repBuffer.name;
+ buffers[i].pitch = repBuffer.pitch;
+ buffers[i].cpp = repBuffer.cpp;
+ buffers[i].flags = repBuffer.flags;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return buffers;
+}
+
+
+void
+DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
+ CARD32 dest, CARD32 src)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2CopyRegionReq *req;
+ xDRI2CopyRegionReply rep;
+
+ XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
+
+ LockDisplay(dpy);
+ GetReq(DRI2CopyRegion, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2CopyRegion;
+ req->drawable = drawable;
+ req->region = region;
+ req->dest = dest;
+ req->src = src;
+
+ _XReply(dpy, (xReply *) & rep, 0, xFalse);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+#ifdef X_DRI2SwapBuffers
+static void
+load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
+ CARD64 remainder)
+{
+ req->target_msc_hi = target >> 32;
+ req->target_msc_lo = target & 0xffffffff;
+ req->divisor_hi = divisor >> 32;
+ req->divisor_lo = divisor & 0xffffffff;
+ req->remainder_hi = remainder >> 32;
+ req->remainder_lo = remainder & 0xffffffff;
+}
+
+static CARD64
+vals_to_card64(CARD32 lo, CARD32 hi)
+{
+ return (CARD64)hi << 32 | lo;
+}
+
+void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
+ CARD64 divisor, CARD64 remainder, CARD64 *count)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2SwapBuffersReq *req;
+ xDRI2SwapBuffersReply rep;
+
+ XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
+
+ LockDisplay(dpy);
+ GetReq(DRI2SwapBuffers, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2SwapBuffers;
+ req->drawable = drawable;
+ load_swap_req(req, target_msc, divisor, remainder);
+
+ _XReply(dpy, (xReply *)&rep, 0, xFalse);
+
+ *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+#endif
+
+#ifdef X_DRI2GetMSC
+Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
+ CARD64 *sbc)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2GetMSCReq *req;
+ xDRI2MSCReply rep;
+
+ XextCheckExtension (dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2GetMSC, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2GetMSC;
+ req->drawable = drawable;
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
+ *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
+ *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return True;
+}
+#endif
+
+#ifdef X_DRI2WaitMSC
+static void
+load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
+ CARD64 remainder)
+{
+ req->target_msc_hi = target >> 32;
+ req->target_msc_lo = target & 0xffffffff;
+ req->divisor_hi = divisor >> 32;
+ req->divisor_lo = divisor & 0xffffffff;
+ req->remainder_hi = remainder >> 32;
+ req->remainder_lo = remainder & 0xffffffff;
+}
+
+Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
+ CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2WaitMSCReq *req;
+ xDRI2MSCReply rep;
+
+ XextCheckExtension (dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2WaitMSC, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2WaitMSC;
+ req->drawable = drawable;
+ load_msc_req(req, target_msc, divisor, remainder);
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
+ *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
+ *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return True;
+}
+#endif
+
+#ifdef X_DRI2WaitSBC
+static void
+load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
+{
+ req->target_sbc_hi = target >> 32;
+ req->target_sbc_lo = target & 0xffffffff;
+}
+
+Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
+ CARD64 *msc, CARD64 *sbc)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2WaitSBCReq *req;
+ xDRI2MSCReply rep;
+
+ XextCheckExtension (dpy, info, dri2ExtensionName, False);
+
+ LockDisplay(dpy);
+ GetReq(DRI2WaitSBC, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2WaitSBC;
+ req->drawable = drawable;
+ load_sbc_req(req, target_sbc);
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
+ *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
+ *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return True;
+}
+#endif
+
+#ifdef X_DRI2SwapInterval
+void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
+{
+ XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+ xDRI2SwapIntervalReq *req;
+
+ XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
+
+ LockDisplay(dpy);
+ GetReq(DRI2SwapInterval, req);
+ req->reqType = info->codes->major_opcode;
+ req->dri2ReqType = X_DRI2SwapInterval;
+ req->drawable = drawable;
+ req->interval = interval;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+#endif
+
+#endif /* GLX_DIRECT_RENDERING */