| /* |
| * 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 <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; |
| dpy = (VADisplay)pDisplayContext; |
| } |
| else |
| { |
| if (pDisplayContext) |
| free(pDisplayContext); |
| if (pDriverContext) |
| free(pDriverContext); |
| } |
| } |
| |
| return dpy; |
| } |