/*
* 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)
*/
#define NEED_REPLIES
#include <X11/Xlibint.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#include "xf86drm.h"
#include "va_dri2.h"
#include "va_dri2str.h"
#include "va_dri2tokens.h"
#ifndef DRI2DriverDRI
#define DRI2DriverDRI 0
#endif
static int
VA_DRI2Error(Display *dpy, xError *err, XExtCodes *codes, int *ret_code);
static VA_DRI2Buffer *
VA_DRI2GetBuffers_internal(XExtDisplayInfo *info,
Display *dpy, XID drawable,
int *width, int *height,
unsigned int *attachments,
int count,
int *outCount);
static char va_dri2ExtensionName[] = DRI2_NAME;
static XExtensionInfo _va_dri2_info_data;
static XExtensionInfo *va_dri2Info = &_va_dri2_info_data;
static XEXT_GENERATE_CLOSE_DISPLAY (VA_DRI2CloseDisplay, va_dri2Info)
static /* const */ XExtensionHooks va_dri2ExtensionHooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
VA_DRI2CloseDisplay, /* close_display */
NULL, /* wire_to_event */
NULL, /* event_to_wire */
VA_DRI2Error, /* error */
NULL, /* error_string */
};
static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay, va_dri2Info,
va_dri2ExtensionName,
&va_dri2ExtensionHooks,
0, NULL)
static CARD32 _va_resource_x_error_drawable = 0;
static Bool _va_resource_x_error_matched = False;
#define VA_EnterResourceError(drawable) \
do { \
_va_resource_x_error_drawable = (drawable); \
_va_resource_x_error_matched = False; \
} while (0)
#define VA_LeaveResourceError() \
do { \
_va_resource_x_error_drawable = 0; \
} while (0)
#define VA_ResourceErrorMatched() \
(_va_resource_x_error_matched)
static int
VA_DRI2Error(Display *dpy, xError *err, XExtCodes *codes, int *ret_code)
{
if (_va_resource_x_error_drawable == err->resourceID) {
_va_resource_x_error_matched = True;
return True;
}
return False;
}
Bool VA_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 VA_DRI2QueryVersion(Display *dpy, int *major, int *minor)
{
XExtDisplayInfo *info = DRI2FindDisplay (dpy);
xDRI2QueryVersionReply rep;
xDRI2QueryVersionReq *req;
XextCheckExtension (dpy, info, va_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 VA_DRI2Connect(Display *dpy, XID window,
char **driverName, char **deviceName)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2ConnectReply rep;
xDRI2ConnectReq *req;
XextCheckExtension (dpy, info, va_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 VA_DRI2Authenticate(Display *dpy, XID window, drm_magic_t magic)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2AuthenticateReq *req;
xDRI2AuthenticateReply rep;
XextCheckExtension (dpy, info, va_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 VA_DRI2CreateDrawable(Display *dpy, XID drawable)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2CreateDrawableReq *req;
XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
LockDisplay(dpy);
GetReq(DRI2CreateDrawable, req);
req->reqType = info->codes->major_opcode;
req->dri2ReqType = X_DRI2CreateDrawable;
req->drawable = drawable;
UnlockDisplay(dpy);
SyncHandle();
}
void VA_DRI2DestroyDrawable(Display *dpy, XID drawable)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2DestroyDrawableReq *req;
unsigned int attachement = 0; // FRONT_LEFT
VA_DRI2Buffer *buffers;
XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
XSync(dpy, False);
LockDisplay(dpy);
/*
* We have no way of catching DRI2DestroyDrawable errors because
* this message doesn't have a defined answer. So we test whether
* the drawable is still alive by sending DRIGetBuffers first and
* checking whether we get an error.
*/
VA_EnterResourceError(drawable);
buffers = VA_DRI2GetBuffers_internal(info, dpy, drawable,
NULL, NULL,
&attachement, 1, NULL);
VA_LeaveResourceError();
if (buffers)
XFree(buffers);
if (VA_ResourceErrorMatched()) {
UnlockDisplay(dpy);
SyncHandle();
return;
}
GetReq(DRI2DestroyDrawable, req);
req->reqType = info->codes->major_opcode;
req->dri2ReqType = X_DRI2DestroyDrawable;
req->drawable = drawable;
UnlockDisplay(dpy);
SyncHandle();
}
VA_DRI2Buffer *VA_DRI2GetBuffers_internal(XExtDisplayInfo *info,
Display *dpy, XID drawable,
int *width, int *height,
unsigned int *attachments, int count,
int *outCount)
{
xDRI2GetBuffersReply rep;
xDRI2GetBuffersReq *req;
VA_DRI2Buffer *buffers;
xDRI2Buffer repBuffer;
CARD32 *p;
int i;
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)) {
return NULL;
}
if (width)
*width = rep.width;
if (height)
*height = rep.height;
if (outCount)
*outCount = rep.count;
buffers = Xmalloc(rep.count * sizeof buffers[0]);
if (buffers == NULL) {
_XEatData(dpy, rep.count * sizeof repBuffer);
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;
}
return buffers;
}
VA_DRI2Buffer *VA_DRI2GetBuffers(Display *dpy, XID drawable,
int *width, int *height,
unsigned int *attachments, int count,
int *outCount)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
VA_DRI2Buffer *buffers;
XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
LockDisplay(dpy);
buffers = VA_DRI2GetBuffers_internal(info, dpy, drawable, width, height,
attachments, count, outCount);
UnlockDisplay(dpy);
SyncHandle();
return buffers;
}
void VA_DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
CARD32 dest, CARD32 src)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2CopyRegionReq *req;
xDRI2CopyRegionReply rep;
XextSimpleCheckExtension (dpy, info, va_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();
}
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 VA_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, va_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();
}