static void free_drm_resources(gfx_ctx_drm_data_t *drm) { if (!drm) return; /* Restore original CRTC. */ drm_restore_crtc(); if (g_gbm_surface) gbm_surface_destroy(g_gbm_surface); if (g_gbm_dev) gbm_device_destroy(g_gbm_dev); drm_free(); if (drm->drm) if (g_drm_fd >= 0) filestream_close(drm->drm); g_gbm_surface = NULL; g_gbm_dev = NULL; g_drm_fd = -1; }
static void gfx_ctx_drm_destroy_resources(gfx_ctx_drm_data_t *drm) { if (!drm) return; /* Make sure we acknowledge all page-flips. */ gfx_ctx_drm_wait_flip(true); switch (drm_api) { case GFX_CTX_OPENGL_API: case GFX_CTX_OPENGL_ES_API: case GFX_CTX_OPENVG_API: #ifdef HAVE_EGL egl_destroy(&drm->egl); #endif break; case GFX_CTX_NONE: default: break; } /* Restore original CRTC. */ drm_restore_crtc(); free_drm_resources(drm); g_drm_mode = NULL; g_crtc_id = 0; g_connector_id = 0; drm->fb_width = 0; drm->fb_height = 0; g_bo = NULL; g_next_bo = NULL; }
static void *gfx_ctx_drm_init(void *video_driver) { int fd, i; unsigned monitor_index; unsigned gpu_index = 0; const char *gpu = NULL; struct string_list *gpu_descriptors = NULL; gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*) calloc(1, sizeof(gfx_ctx_drm_data_t)); if (!drm) return NULL; fd = -1; gpu_descriptors = dir_list_new("/dev/dri", NULL, false, false); nextgpu: drm_restore_crtc(); free_drm_resources(drm); if (!gpu_descriptors || gpu_index == gpu_descriptors->size) { RARCH_ERR("[KMS]: Couldn't find a suitable DRM device.\n"); goto error; } gpu = gpu_descriptors->elems[gpu_index++].data; drm->drm = retro_fopen(gpu, RFILE_MODE_READ_WRITE, -1); if (!drm->drm) { RARCH_WARN("[KMS]: Couldn't open DRM device.\n"); goto nextgpu; } fd = retro_get_fd(drm->drm); if (!drm_get_resources(fd)) goto nextgpu; if (!drm_get_connector(fd)) goto nextgpu; if (!drm_get_encoder(fd)) goto nextgpu; drm_setup(fd); /* First mode is assumed to be the "optimal" * one for get_video_size() purposes. */ drm->fb_width = g_drm_connector->modes[0].hdisplay; drm->fb_height = g_drm_connector->modes[0].vdisplay; g_gbm_dev = gbm_create_device(fd); if (!g_gbm_dev) { RARCH_WARN("[KMS]: Couldn't create GBM device.\n"); goto nextgpu; } dir_list_free(gpu_descriptors); /* Setup the flip handler. */ g_drm_fds.fd = fd; g_drm_fds.events = POLLIN; g_drm_evctx.version = DRM_EVENT_CONTEXT_VERSION; g_drm_evctx.page_flip_handler = drm_flip_handler; g_drm_fd = fd; return drm; error: dir_list_free(gpu_descriptors); gfx_ctx_drm_destroy_resources(drm); if (drm) free(drm); return NULL; }