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Diffstat (limited to 'va/x11/va_dri2.c')
-rw-r--r--va/x11/va_dri2.c424
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diff --git a/va/x11/va_dri2.c b/va/x11/va_dri2.c
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--- a/va/x11/va_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)
- */
-
-
-#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();
-}
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