GBM and EGL are separate libraries. v2: - don't fallback if drm fd specified (@davidriley) - close fd on failure (@davidriley) v3: - if drm fd is specified, assume caller retains ownership (@davidriley) v4: - add comments (@davidriley) Reviewed-by: David Riley <davidriley@chromium.org> Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>macos/master
Gurchetan Singh
5 years ago
parent
4253b10072
commit
4cade493dc
@ -0,0 +1,127 @@ |
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/**************************************************************************
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* |
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* Copyright (C) 2019 Chromium. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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**************************************************************************/ |
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#ifndef _GNU_SOURCE |
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#define _GNU_SOURCE 1 |
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#endif |
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#include <stdio.h> |
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#include <dirent.h> |
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#include <fcntl.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <xf86drm.h> |
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#include <unistd.h> |
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#include "virgl_gbm.h" |
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#include "virgl_hw.h" |
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#include "vrend_debug.h" |
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static int rendernode_open(void) |
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{ |
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DIR *dir; |
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struct dirent *dir_ent; |
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int ret, fd; |
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char *rendernode_name; |
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dir = opendir("/dev/dri"); |
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if (!dir) |
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return -1; |
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fd = -1; |
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while ((dir_ent = readdir(dir))) { |
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if (dir_ent->d_type != DT_CHR) |
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continue; |
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if (strncmp(dir_ent->d_name, "renderD", 7)) |
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continue; |
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ret = asprintf(&rendernode_name, "/dev/dri/%s", dir_ent->d_name); |
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if (ret < 0) |
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return -1; |
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fd = open(rendernode_name, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK); |
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if (fd < 0){ |
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free(rendernode_name); |
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continue; |
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} |
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free(rendernode_name); |
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break; |
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} |
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closedir(dir); |
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if (fd < 0) |
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return -1; |
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return fd; |
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} |
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struct virgl_gbm *virgl_gbm_init(int fd) |
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{ |
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struct virgl_gbm *gbm = calloc(1, sizeof(struct virgl_gbm)); |
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if (!gbm) |
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return NULL; |
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gbm->fd = -1; |
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if (fd < 0) { |
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gbm->fd = rendernode_open(); |
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if (gbm->fd < 0) |
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goto out_error; |
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gbm->device = gbm_create_device(gbm->fd); |
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if (!gbm->device) { |
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close(gbm->fd); |
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goto out_error; |
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} |
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} else { |
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gbm->device = gbm_create_device(fd); |
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if (!gbm->device) |
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goto out_error; |
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} |
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return gbm; |
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out_error: |
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free(gbm); |
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return NULL; |
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} |
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void virgl_gbm_fini(struct virgl_gbm *gbm) |
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{ |
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gbm_device_destroy(gbm->device); |
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if (gbm->fd >= 0) |
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close(gbm->fd); |
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free(gbm); |
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} |
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uint32_t virgl_gbm_convert_format(uint32_t virgl_format) |
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{ |
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switch (virgl_format) { |
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case VIRGL_FORMAT_B8G8R8X8_UNORM: |
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case VIRGL_FORMAT_B8G8R8A8_UNORM: |
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return GBM_FORMAT_ARGB8888; |
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default: |
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vrend_printf("unsupported virgl format: %u\n", virgl_format); |
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return 0; |
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} |
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} |
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@ -0,0 +1,46 @@ |
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/**************************************************************************
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* |
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* Copyright (C) 2019 Chromium. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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**************************************************************************/ |
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#ifndef VIRGL_GBM_H |
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#define VIRGL_GBM_H |
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#include <gbm.h> |
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/*
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* If fd >= 0, virglrenderer owns the fd since it was opened via a rendernode |
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* query. If fd < 0, the gbm device was opened with the fd provided by the |
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* (*get_drm_fd) hook. |
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*/ |
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struct virgl_gbm { |
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int fd; |
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struct gbm_device *device; |
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}; |
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struct virgl_gbm *virgl_gbm_init(int fd); |
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void virgl_gbm_fini(struct virgl_gbm *gbm); |
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uint32_t virgl_gbm_convert_format(uint32_t virgl_format); |
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#endif |
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