diff options
Diffstat (limited to 'va/x11/va_x11.c')
| -rw-r--r-- | va/x11/va_x11.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/va/x11/va_x11.c b/va/x11/va_x11.c new file mode 100644 index 0000000..29e81c8 --- /dev/null +++ b/va/x11/va_x11.c @@ -0,0 +1,217 @@ +/* + * 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. + */ + +#define _GNU_SOURCE 1 +#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 "va_nvctrl.h" +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> + +static VADisplayContextP pDisplayContexts = NULL; + +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->dri_state); + free(pDisplayContext->pDriverContext); + free(pDisplayContext); +} + + +static VAStatus va_DRI2GetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + + if (!isDRI2Connected(ctx, driver_name)) + return VA_STATUS_ERROR_UNKNOWN; + + return VA_STATUS_SUCCESS; +} + +static VAStatus va_DRIGetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + + if (!isDRI1Connected(ctx, driver_name)) + return VA_STATUS_ERROR_UNKNOWN; + + return VA_STATUS_SUCCESS; +} + +static VAStatus va_NVCTRL_GetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VADriverContextP ctx = pDisplayContext->pDriverContext; + int direct_capable, driver_major, driver_minor, driver_patch; + Bool result; + + result = VA_NVCTRLQueryDirectRenderingCapable(ctx->x11_dpy, ctx->x11_screen, + &direct_capable); + if (!result || !direct_capable) + return VA_STATUS_ERROR_UNKNOWN; + + result = VA_NVCTRLGetClientDriverName(ctx->x11_dpy, ctx->x11_screen, + &driver_major, &driver_minor, + &driver_patch, driver_name); + if (!result) + return VA_STATUS_ERROR_UNKNOWN; + + return VA_STATUS_SUCCESS; +} + +static VAStatus va_DisplayContextGetDriverName ( + VADisplayContextP pDisplayContext, + char **driver_name +) +{ + VAStatus vaStatus; + char *driver_name_env; + + if (driver_name) + *driver_name = NULL; + + if ((driver_name_env = getenv("LIBVA_DRIVER_NAME")) != NULL + && geteuid() == getuid()) + { + /* don't allow setuid apps to use LIBVA_DRIVER_NAME */ + *driver_name = strdup(driver_name_env); + return VA_STATUS_SUCCESS; + } + + vaStatus = va_DRI2GetDriverName(pDisplayContext, driver_name); + if (vaStatus != VA_STATUS_SUCCESS) + vaStatus = va_DRIGetDriverName(pDisplayContext, driver_name); + if (vaStatus != VA_STATUS_SUCCESS) + vaStatus = va_NVCTRL_GetDriverName(pDisplayContext, driver_name); + + return vaStatus; +} + + +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; + struct dri_state *dri_state; + pDisplayContext = calloc(1, sizeof(*pDisplayContext)); + pDriverContext = calloc(1, sizeof(*pDriverContext)); + dri_state = calloc(1, sizeof(*dri_state)); + if (pDisplayContext && pDriverContext && dri_state) + { + pDisplayContext->vadpy_magic = VA_DISPLAY_MAGIC; + + 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 = dri_state; + dpy = (VADisplay)pDisplayContext; + } + else + { + if (pDisplayContext) + free(pDisplayContext); + if (pDriverContext) + free(pDriverContext); + if (dri_state) + free(dri_state); + } + } + + return dpy; +} |