| /* |
| * 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 <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; |
| } |