diff options
Diffstat (limited to 'src/X11/va_x11.c')
| -rw-r--r-- | src/X11/va_x11.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/src/X11/va_x11.c b/src/X11/va_x11.c new file mode 100644 index 0000000..4cb8fcd --- /dev/null +++ b/src/X11/va_x11.c @@ -0,0 +1,306 @@ +/* + * Copyright (c) 2007 Intel Corporation. All Rights Reserved. + * + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. + */ + +#include "config.h" +#include "va.h" +#include "va_backend.h" +#include "va_x11.h" +#include "va_dri.h" +#include "va_dri2.h" +#include "va_dricommon.h" +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> + +static VADisplayContextP pDisplayContexts = NULL; + +static void va_errorMessage(const char *msg, ...) +{ + va_list args; + + fprintf(stderr, "libva error: "); + va_start(args, msg); + vfprintf(stderr, msg, args); + va_end(args); +} + +static void va_infoMessage(const char *msg, ...) +{ + va_list args; + + fprintf(stderr, "libva: "); + va_start(args, msg); + vfprintf(stderr, msg, args); + va_end(args); +} + +static int va_DisplayContextIsValid ( + VADisplayContextP pDisplayContext +) +{ + VADisplayContextP ctx = pDisplayContexts; + + while (ctx) + { + if (ctx == pDisplayContext && pDisplayContext->pDriverContext) + return 1; + ctx = ctx->pNext; + } + return 0; +} + +static void va_DisplayContextDestroy ( + VADisplayContextP pDisplayContext +) +{ + VADisplayContextP *ctx = &pDisplayContexts; + + /* Throw away pDisplayContext */ + while (*ctx) + { + if (*ctx == pDisplayContext) + { + *ctx = pDisplayContext->pNext; + pDisplayContext->pNext = NULL; + break; + } + ctx = &((*ctx)->pNext); + } + free(pDisplayContext->pDriverContext); + free(pDisplayContext); +} + + +static VAStatus va_DRI2GetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + VAStatus vaStatus = VA_STATUS_ERROR_UNKNOWN; + int eventBase, errorBase; + char *device_name; + int driver_major; + int driver_minor; + int driver_patch; + Bool result = True; + + if (!VA_DRI2QueryExtension(ctx->x11_dpy, &eventBase, &errorBase)) { + va_infoMessage("DRI2 extension isn't present\n"); + return VA_STATUS_ERROR_UNKNOWN; + } + + if (!VA_DRI2QueryVersion(ctx->x11_dpy, &driver_major, &driver_minor)) { + va_errorMessage("VA_DRI2QueryVersion failed\n"); + return VA_STATUS_ERROR_UNKNOWN; + } + + if (!VA_DRI2Connect(ctx->x11_dpy, RootWindow(ctx->x11_dpy, ctx->x11_screen), + driver_name, &device_name)) { + va_infoMessage("DRI2 isn't enabled, fallback to DRI1\n"); + return VA_STATUS_ERROR_UNKNOWN; + } + + va_infoMessage("VA_DRI2Connect: %d.%d.%d %s (screen %d)\n", + driver_major, driver_minor, driver_patch, *driver_name, ctx->x11_screen); + ctx->dri2 = 1; + + return VA_STATUS_SUCCESS; +} + +static VAStatus va_DRIGetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + VAStatus vaStatus = VA_STATUS_ERROR_UNKNOWN; + int eventBase, errorBase; + int direct_capable; + int driver_major; + int driver_minor; + int driver_patch; + Bool result = True; + char *x_driver_name = NULL; + + if (!VA_DRIQueryExtension(ctx->x11_dpy, &eventBase, &errorBase)) { + va_errorMessage("VA_DRIQueryExtension failed\n"); + return VA_STATUS_ERROR_UNKNOWN; + } + + if (result) + { + result = VA_DRIQueryDirectRenderingCapable(ctx->x11_dpy, ctx->x11_screen, &direct_capable); + if (!result) + { + va_errorMessage("VA_DRIQueryDirectRenderingCapable failed\n"); + } + } + if (result) + { + result = direct_capable; + if (!result) + { + va_errorMessage("VA_DRIQueryDirectRenderingCapable returned false\n"); + } + } + if (result) + { + result = VA_DRIGetClientDriverName(ctx->x11_dpy, ctx->x11_screen, &driver_major, &driver_minor, + &driver_patch, &x_driver_name); + if (!result) + { + va_errorMessage("VA_DRIGetClientDriverName returned false\n"); + } + } + if (result) + { + vaStatus = VA_STATUS_SUCCESS; + va_infoMessage("VA_DRIGetClientDriverName: %d.%d.%d %s (screen %d)\n", + driver_major, driver_minor, driver_patch, x_driver_name, ctx->x11_screen); + if (driver_name) + *driver_name = strdup(x_driver_name); + } + if (x_driver_name) + XFree(x_driver_name); + + return vaStatus; +} + +static VAStatus va_DisplayContextGetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + VAStatus vaStatus = VA_STATUS_ERROR_UNKNOWN; + int direct_capable; + int driver_major; + int driver_minor; + int driver_patch; + Bool result = True; + char *x_driver_name = NULL; + + if (driver_name) + *driver_name = NULL; + + vaStatus = va_DRI2GetDriverName(pDisplayContext, driver_name); + if (vaStatus != VA_STATUS_SUCCESS) + vaStatus = va_DRIGetDriverName(pDisplayContext, driver_name); + + if ((vaStatus == VA_STATUS_SUCCESS) + && geteuid() == getuid()) + { + /* don't allow setuid apps to use LIBVA_DRIVER_NAME */ + if (getenv("LIBVA_DRIVER_NAME")) + { + /* For easier debugging */ + if (*driver_name) + XFree(*driver_name); + + *driver_name = strdup(getenv("LIBVA_DRIVER_NAME")); + return VA_STATUS_SUCCESS; + } + } + + return vaStatus; +} + +int vaDisplayIsValid(VADisplay dpy) +{ + VADisplayContextP tmp=NULL; + VADisplayContextP pDisplayContext = pDisplayContexts; + + while (pDisplayContext) + { + if (pDisplayContext == (VADisplayContextP)dpy) + { + tmp = (VADisplay)pDisplayContext; + break; + } + pDisplayContext = pDisplayContext->pNext; + } + + if (!tmp) + return 0; + + return tmp->vaIsValid(pDisplayContext); +} + + +VADisplay vaGetDisplay ( + Display *native_dpy /* implementation specific */ +) +{ + VADisplay dpy = NULL; + VADisplayContextP pDisplayContext = pDisplayContexts; + + if (!native_dpy) + return NULL; + + while (pDisplayContext) + { + if (pDisplayContext->pDriverContext && + pDisplayContext->pDriverContext->x11_dpy == native_dpy) + { + dpy = (VADisplay)pDisplayContext; + break; + } + pDisplayContext = pDisplayContext->pNext; + } + + if (!dpy) + { + /* create new entry */ + VADriverContextP pDriverContext; + pDisplayContext = calloc(1, sizeof(*pDisplayContext)); + pDriverContext = calloc(1, sizeof(*pDriverContext)); + if (pDisplayContext && pDriverContext) + { + pDriverContext->old_pNext = (void *)(unsigned long)0xdeadbeef; + pDriverContext->x11_dpy = native_dpy; + pDisplayContext->pNext = pDisplayContexts; + pDisplayContext->pDriverContext = pDriverContext; + pDisplayContext->vaIsValid = va_DisplayContextIsValid; + pDisplayContext->vaDestroy = va_DisplayContextDestroy; + pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName; + pDisplayContexts = pDisplayContext; + pDriverContext->dri_state = calloc(1, sizeof(struct dri_state)); + dpy = (VADisplay)pDisplayContext; + } + else + { + if (pDisplayContext) + free(pDisplayContext); + if (pDriverContext) + free(pDriverContext); + } + } + + return dpy; +} |