/* * Copyright © 2011 Intel Corporation * * 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, sublicense, * 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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS 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. * * Authors: * Benjamin Franzke */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* dri_interface needs GL types */ #include #include "gbm_driint.h" #include "gbmint.h" #include "loader.h" #include "util/debug.h" #include "util/macros.h" /* For importing wl_buffer */ #if HAVE_WAYLAND_PLATFORM #include "wayland-drm.h" #endif #ifndef DRM_FORMAT_MOD_INVALID #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1) #endif #ifndef DRM_FORMAT_MOD_LINEAR #define DRM_FORMAT_MOD_LINEAR 0 #endif static __DRIimage * dri_lookup_egl_image(__DRIscreen *screen, void *image, void *data) { struct gbm_dri_device *dri = data; if (dri->lookup_image == NULL) return NULL; return dri->lookup_image(screen, image, dri->lookup_user_data); } static __DRIbuffer * dri_get_buffers(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *data) { struct gbm_dri_surface *surf = data; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); if (dri->get_buffers == NULL) return NULL; return dri->get_buffers(driDrawable, width, height, attachments, count, out_count, surf->dri_private); } static void dri_flush_front_buffer(__DRIdrawable * driDrawable, void *data) { struct gbm_dri_surface *surf = data; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); if (dri->flush_front_buffer != NULL) dri->flush_front_buffer(driDrawable, surf->dri_private); } static __DRIbuffer * dri_get_buffers_with_format(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *data) { struct gbm_dri_surface *surf = data; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); if (dri->get_buffers_with_format == NULL) return NULL; return dri->get_buffers_with_format(driDrawable, width, height, attachments, count, out_count, surf->dri_private); } static int image_get_buffers(__DRIdrawable *driDrawable, unsigned int format, uint32_t *stamp, void *loaderPrivate, uint32_t buffer_mask, struct __DRIimageList *buffers) { struct gbm_dri_surface *surf = loaderPrivate; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); if (dri->image_get_buffers == NULL) return 0; return dri->image_get_buffers(driDrawable, format, stamp, surf->dri_private, buffer_mask, buffers); } static void swrast_get_drawable_info(__DRIdrawable *driDrawable, int *x, int *y, int *width, int *height, void *loaderPrivate) { struct gbm_dri_surface *surf = loaderPrivate; *x = 0; *y = 0; *width = surf->base.width; *height = surf->base.height; } static void swrast_put_image2(__DRIdrawable *driDrawable, int op, int x, int y, int width, int height, int stride, char *data, void *loaderPrivate) { struct gbm_dri_surface *surf = loaderPrivate; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); dri->swrast_put_image2(driDrawable, op, x, y, width, height, stride, data, surf->dri_private); } static void swrast_put_image(__DRIdrawable *driDrawable, int op, int x, int y, int width, int height, char *data, void *loaderPrivate) { return swrast_put_image2(driDrawable, op, x, y, width, height, width * 4, data, loaderPrivate); } static void swrast_get_image(__DRIdrawable *driDrawable, int x, int y, int width, int height, char *data, void *loaderPrivate) { struct gbm_dri_surface *surf = loaderPrivate; struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm); dri->swrast_get_image(driDrawable, x, y, width, height, data, surf->dri_private); } static const __DRIuseInvalidateExtension use_invalidate = { .base = { __DRI_USE_INVALIDATE, 1 } }; static const __DRIimageLookupExtension image_lookup_extension = { .base = { __DRI_IMAGE_LOOKUP, 1 }, .lookupEGLImage = dri_lookup_egl_image }; static const __DRIdri2LoaderExtension dri2_loader_extension = { .base = { __DRI_DRI2_LOADER, 3 }, .getBuffers = dri_get_buffers, .flushFrontBuffer = dri_flush_front_buffer, .getBuffersWithFormat = dri_get_buffers_with_format, }; static const __DRIimageLoaderExtension image_loader_extension = { .base = { __DRI_IMAGE_LOADER, 1 }, .getBuffers = image_get_buffers, .flushFrontBuffer = dri_flush_front_buffer, }; static const __DRIswrastLoaderExtension swrast_loader_extension = { .base = { __DRI_SWRAST_LOADER, 2 }, .getDrawableInfo = swrast_get_drawable_info, .putImage = swrast_put_image, .getImage = swrast_get_image, .putImage2 = swrast_put_image2 }; static const __DRIextension *gbm_dri_screen_extensions[] = { &image_lookup_extension.base, &use_invalidate.base, &dri2_loader_extension.base, &image_loader_extension.base, &swrast_loader_extension.base, NULL, }; struct dri_extension_match { const char *name; int version; int offset; int optional; }; static struct dri_extension_match dri_core_extensions[] = { { __DRI2_FLUSH, 1, offsetof(struct gbm_dri_device, flush) }, { __DRI_IMAGE, 1, offsetof(struct gbm_dri_device, image) }, { __DRI2_FENCE, 1, offsetof(struct gbm_dri_device, fence), 1 }, { NULL, 0, 0 } }; static struct dri_extension_match gbm_dri_device_extensions[] = { { __DRI_CORE, 1, offsetof(struct gbm_dri_device, core) }, { __DRI_DRI2, 1, offsetof(struct gbm_dri_device, dri2) }, { NULL, 0, 0 } }; static struct dri_extension_match gbm_swrast_device_extensions[] = { { __DRI_CORE, 1, offsetof(struct gbm_dri_device, core), }, { __DRI_SWRAST, 1, offsetof(struct gbm_dri_device, swrast) }, { NULL, 0, 0 } }; static int dri_bind_extensions(struct gbm_dri_device *dri, struct dri_extension_match *matches, const __DRIextension **extensions) { int i, j, ret = 0; void *field; for (i = 0; extensions[i]; i++) { for (j = 0; matches[j].name; j++) { if (strcmp(extensions[i]->name, matches[j].name) == 0 && extensions[i]->version >= matches[j].version) { field = ((char *) dri + matches[j].offset); *(const __DRIextension **) field = extensions[i]; } } } for (j = 0; matches[j].name; j++) { field = ((char *) dri + matches[j].offset); if ((*(const __DRIextension **) field == NULL) && !matches[j].optional) { ret = -1; } } return ret; } static const __DRIextension ** dri_open_driver(struct gbm_dri_device *dri) { const __DRIextension **extensions = NULL; char path[PATH_MAX], *search_paths, *p, *next, *end; char *get_extensions_name; search_paths = NULL; /* don't allow setuid apps to use LIBGL_DRIVERS_PATH or GBM_DRIVERS_PATH */ if (geteuid() == getuid()) { /* Read GBM_DRIVERS_PATH first for compatibility, but LIBGL_DRIVERS_PATH * is recommended over GBM_DRIVERS_PATH. */ search_paths = getenv("GBM_DRIVERS_PATH"); /* Read LIBGL_DRIVERS_PATH if GBM_DRIVERS_PATH was not set. * LIBGL_DRIVERS_PATH is recommended over GBM_DRIVERS_PATH. */ if (search_paths == NULL) { search_paths = getenv("LIBGL_DRIVERS_PATH"); } } if (search_paths == NULL) search_paths = DEFAULT_DRIVER_DIR; /* Temporarily work around dri driver libs that need symbols in libglapi * but don't automatically link it in. */ /* XXX: Library name differs on per platforms basis. Update this as * osx/cygwin/windows/bsd gets support for GBM.. */ dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL); dri->driver = NULL; end = search_paths + strlen(search_paths); for (p = search_paths; p < end && dri->driver == NULL; p = next + 1) { int len; next = strchr(p, ':'); if (next == NULL) next = end; len = next - p; #if GLX_USE_TLS snprintf(path, sizeof path, "%.*s/tls/%s_dri.so", len, p, dri->driver_name); dri->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); #endif if (dri->driver == NULL) { snprintf(path, sizeof path, "%.*s/%s_dri.so", len, p, dri->driver_name); dri->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); } /* not need continue to loop all paths once the driver is found */ if (dri->driver != NULL) break; } if (dri->driver == NULL) { fprintf(stderr, "gbm: failed to open any driver (search paths %s)\n", search_paths); fprintf(stderr, "gbm: Last dlopen error: %s\n", dlerror()); return NULL; } get_extensions_name = loader_get_extensions_name(dri->driver_name); if (get_extensions_name) { const __DRIextension **(*get_extensions)(void); get_extensions = dlsym(dri->driver, get_extensions_name); free(get_extensions_name); if (get_extensions) extensions = get_extensions(); } if (!extensions) extensions = dlsym(dri->driver, __DRI_DRIVER_EXTENSIONS); if (extensions == NULL) { fprintf(stderr, "gbm: driver exports no extensions (%s)", dlerror()); dlclose(dri->driver); } return extensions; } static int dri_load_driver(struct gbm_dri_device *dri) { const __DRIextension **extensions; extensions = dri_open_driver(dri); if (!extensions) return -1; if (dri_bind_extensions(dri, gbm_dri_device_extensions, extensions) < 0) { dlclose(dri->driver); fprintf(stderr, "failed to bind extensions\n"); return -1; } dri->driver_extensions = extensions; return 0; } static int dri_load_driver_swrast(struct gbm_dri_device *dri) { const __DRIextension **extensions; extensions = dri_open_driver(dri); if (!extensions) return -1; if (dri_bind_extensions(dri, gbm_swrast_device_extensions, extensions) < 0) { dlclose(dri->driver); fprintf(stderr, "failed to bind extensions\n"); return -1; } dri->driver_extensions = extensions; return 0; } static int dri_screen_create_dri2(struct gbm_dri_device *dri, char *driver_name) { const __DRIextension **extensions; int ret = 0; dri->driver_name = driver_name; if (dri->driver_name == NULL) return -1; ret = dri_load_driver(dri); if (ret) { fprintf(stderr, "failed to load driver: %s\n", dri->driver_name); return ret; }; dri->loader_extensions = gbm_dri_screen_extensions; if (dri->dri2 == NULL) return -1; if (dri->dri2->base.version >= 4) { dri->screen = dri->dri2->createNewScreen2(0, dri->base.fd, dri->loader_extensions, dri->driver_extensions, &dri->driver_configs, dri); } else { dri->screen = dri->dri2->createNewScreen(0, dri->base.fd, dri->loader_extensions, &dri->driver_configs, dri); } if (dri->screen == NULL) return -1; extensions = dri->core->getExtensions(dri->screen); if (dri_bind_extensions(dri, dri_core_extensions, extensions) < 0) { ret = -1; goto free_screen; } dri->lookup_image = NULL; dri->lookup_user_data = NULL; return 0; free_screen: dri->core->destroyScreen(dri->screen); return ret; } static int dri_screen_create_swrast(struct gbm_dri_device *dri) { int ret; dri->driver_name = strdup("swrast"); if (dri->driver_name == NULL) return -1; ret = dri_load_driver_swrast(dri); if (ret) { fprintf(stderr, "failed to load swrast driver\n"); return ret; } dri->loader_extensions = gbm_dri_screen_extensions; if (dri->swrast == NULL) return -1; if (dri->swrast->base.version >= 4) { dri->screen = dri->swrast->createNewScreen2(0, dri->loader_extensions, dri->driver_extensions, &dri->driver_configs, dri); } else { dri->screen = dri->swrast->createNewScreen(0, dri->loader_extensions, &dri->driver_configs, dri); } if (dri->screen == NULL) return -1; dri->lookup_image = NULL; dri->lookup_user_data = NULL; return 0; } static int dri_screen_create(struct gbm_dri_device *dri) { char *driver_name; driver_name = loader_get_driver_for_fd(dri->base.fd); if (!driver_name) return -1; return dri_screen_create_dri2(dri, driver_name); } static int dri_screen_create_sw(struct gbm_dri_device *dri) { char *driver_name; int ret; driver_name = strdup("kms_swrast"); if (!driver_name) return -errno; ret = dri_screen_create_dri2(dri, driver_name); if (ret == 0) return ret; return dri_screen_create_swrast(dri); } static const struct { uint32_t gbm_format; int dri_image_format; } gbm_to_dri_image_formats[] = { { GBM_FORMAT_R8, __DRI_IMAGE_FORMAT_R8 }, { GBM_FORMAT_GR88, __DRI_IMAGE_FORMAT_GR88 }, { GBM_FORMAT_RGB565, __DRI_IMAGE_FORMAT_RGB565 }, { GBM_FORMAT_XRGB8888, __DRI_IMAGE_FORMAT_XRGB8888 }, { GBM_FORMAT_ARGB8888, __DRI_IMAGE_FORMAT_ARGB8888 }, { GBM_FORMAT_XBGR8888, __DRI_IMAGE_FORMAT_XBGR8888 }, { GBM_FORMAT_ABGR8888, __DRI_IMAGE_FORMAT_ABGR8888 }, { GBM_FORMAT_XRGB2101010, __DRI_IMAGE_FORMAT_XRGB2101010 }, { GBM_FORMAT_ARGB2101010, __DRI_IMAGE_FORMAT_ARGB2101010 }, }; /* The two GBM_BO_FORMAT_[XA]RGB8888 formats alias the GBM_FORMAT_* * formats of the same name. We want to accept them whenever someone * has a GBM format, but never return them to the user. */ static int gbm_format_canonicalize(uint32_t gbm_format) { switch (gbm_format) { case GBM_BO_FORMAT_XRGB8888: return GBM_FORMAT_XRGB8888; case GBM_BO_FORMAT_ARGB8888: return GBM_FORMAT_ARGB8888; default: return gbm_format; } } static int gbm_format_to_dri_format(uint32_t gbm_format) { int i; gbm_format = gbm_format_canonicalize(gbm_format); for (i = 0; i < ARRAY_SIZE(gbm_to_dri_image_formats); i++) { if (gbm_to_dri_image_formats[i].gbm_format == gbm_format) return gbm_to_dri_image_formats[i].dri_image_format; } return 0; } static uint32_t gbm_dri_to_gbm_format(int dri_format) { int i; for (i = 0; i < ARRAY_SIZE(gbm_to_dri_image_formats); i++) { if (gbm_to_dri_image_formats[i].dri_image_format == dri_format) return gbm_to_dri_image_formats[i].gbm_format; } return 0; } static int gbm_dri_is_format_supported(struct gbm_device *gbm, uint32_t format, uint32_t usage) { struct gbm_dri_device *dri = gbm_dri_device(gbm); int count; if ((usage & GBM_BO_USE_CURSOR) && (usage & GBM_BO_USE_RENDERING)) return 0; format = gbm_format_canonicalize(format); if (gbm_format_to_dri_format(format) == 0) return 0; /* If there is no query, fall back to the small table which was originally * here. */ if (dri->image->base.version <= 15 || !dri->image->queryDmaBufModifiers) { switch (format) { case GBM_FORMAT_XRGB8888: case GBM_FORMAT_ARGB8888: case GBM_FORMAT_XBGR8888: return 1; default: return 0; } } /* Check if the driver returns any modifiers for this format; since linear * is counted as a modifier, we will have at least one modifier for any * supported format. */ if (!dri->image->queryDmaBufModifiers(dri->screen, format, 0, NULL, NULL, &count)) return 0; return (count > 0); } static int gbm_dri_get_format_modifier_plane_count(struct gbm_device *gbm, uint32_t format, uint64_t modifier) { struct gbm_dri_device *dri = gbm_dri_device(gbm); uint64_t plane_count; if (dri->image->base.version < 16 || !dri->image->queryDmaBufFormatModifierAttribs) return -1; format = gbm_format_canonicalize(format); if (gbm_format_to_dri_format(format) == 0) return -1; if (!dri->image->queryDmaBufFormatModifierAttribs( dri->screen, format, modifier, __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT, &plane_count)) return -1; return plane_count; } static int gbm_dri_bo_write(struct gbm_bo *_bo, const void *buf, size_t count) { struct gbm_dri_bo *bo = gbm_dri_bo(_bo); if (bo->image != NULL) { errno = EINVAL; return -1; } memcpy(bo->map, buf, count); return 0; } static int gbm_dri_bo_get_fd(struct gbm_bo *_bo) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); int fd; if (bo->image == NULL) return -1; if (!dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_FD, &fd)) return -1; return fd; } static int get_number_planes(struct gbm_dri_device *dri, __DRIimage *image) { int num_planes = 0; /* Dumb buffers are single-plane only. */ if (!image) return 1; dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes); if (num_planes <= 0) num_planes = 1; return num_planes; } static int gbm_dri_bo_get_planes(struct gbm_bo *_bo) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); return get_number_planes(dri, bo->image); } static union gbm_bo_handle gbm_dri_bo_get_handle_for_plane(struct gbm_bo *_bo, int plane) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); union gbm_bo_handle ret; ret.s32 = -1; if (!dri->image || dri->image->base.version < 13 || !dri->image->fromPlanar) { errno = ENOSYS; return ret; } if (plane >= get_number_planes(dri, bo->image)) { errno = EINVAL; return ret; } /* dumb BOs can only utilize non-planar formats */ if (!bo->image) { assert(plane == 0); ret.s32 = bo->handle; return ret; } __DRIimage *image = dri->image->fromPlanar(bo->image, plane, NULL); if (image) { dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_HANDLE, &ret.s32); dri->image->destroyImage(image); } else { assert(plane == 0); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE, &ret.s32); } return ret; } static uint32_t gbm_dri_bo_get_stride(struct gbm_bo *_bo, int plane) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); __DRIimage *image; int stride = 0; if (!dri->image || dri->image->base.version < 11 || !dri->image->fromPlanar) { /* Preserve legacy behavior if plane is 0 */ if (plane == 0) return _bo->stride; errno = ENOSYS; return 0; } if (plane >= get_number_planes(dri, bo->image)) { errno = EINVAL; return 0; } if (bo->image == NULL) { assert(plane == 0); return _bo->stride; } image = dri->image->fromPlanar(bo->image, plane, NULL); if (image) { dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride); dri->image->destroyImage(image); } else { assert(plane == 0); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE, &stride); } return (uint32_t)stride; } static uint32_t gbm_dri_bo_get_offset(struct gbm_bo *_bo, int plane) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); int offset = 0; /* These error cases do not actually return an error code, as the user * will also fail to obtain the handle/FD from the BO. In that case, the * offset is irrelevant, as they have no buffer to offset into, so * returning 0 is harmless. */ if (!dri->image || dri->image->base.version < 13 || !dri->image->fromPlanar) return 0; if (plane >= get_number_planes(dri, bo->image)) return 0; /* Dumb images have no offset */ if (bo->image == NULL) { assert(plane == 0); return 0; } __DRIimage *image = dri->image->fromPlanar(bo->image, plane, NULL); if (image) { dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_OFFSET, &offset); dri->image->destroyImage(image); } else { dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_OFFSET, &offset); } return (uint32_t)offset; } static uint64_t gbm_dri_bo_get_modifier(struct gbm_bo *_bo) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); if (!dri->image || dri->image->base.version < 14) { errno = ENOSYS; return DRM_FORMAT_MOD_INVALID; } /* Dumb buffers have no modifiers */ if (!bo->image) return DRM_FORMAT_MOD_LINEAR; uint64_t ret = 0; int mod; if (!dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_UPPER, &mod)) return DRM_FORMAT_MOD_INVALID; ret = (uint64_t)mod << 32; if (!dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_LOWER, &mod)) return DRM_FORMAT_MOD_INVALID; ret |= (uint64_t)(mod & 0xffffffff); return ret; } static void gbm_dri_bo_destroy(struct gbm_bo *_bo) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); struct drm_mode_destroy_dumb arg; if (bo->image != NULL) { dri->image->destroyImage(bo->image); } else { gbm_dri_bo_unmap_dumb(bo); memset(&arg, 0, sizeof(arg)); arg.handle = bo->handle; drmIoctl(dri->base.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &arg); } free(bo); } static struct gbm_bo * gbm_dri_bo_import(struct gbm_device *gbm, uint32_t type, void *buffer, uint32_t usage) { struct gbm_dri_device *dri = gbm_dri_device(gbm); struct gbm_dri_bo *bo; __DRIimage *image; unsigned dri_use = 0; int gbm_format; /* Required for query image WIDTH & HEIGHT */ if (dri->image == NULL || dri->image->base.version < 4) { errno = ENOSYS; return NULL; } switch (type) { #if HAVE_WAYLAND_PLATFORM case GBM_BO_IMPORT_WL_BUFFER: { struct wl_drm_buffer *wb; if (!dri->wl_drm) { errno = EINVAL; return NULL; } wb = wayland_drm_buffer_get(dri->wl_drm, (struct wl_resource *) buffer); if (!wb) { errno = EINVAL; return NULL; } image = dri->image->dupImage(wb->driver_buffer, NULL); /* GBM_FORMAT_* is identical to WL_DRM_FORMAT_*, so no conversion * required. */ gbm_format = wb->format; break; } #endif case GBM_BO_IMPORT_EGL_IMAGE: { int dri_format; if (dri->lookup_image == NULL) { errno = EINVAL; return NULL; } image = dri->lookup_image(dri->screen, buffer, dri->lookup_user_data); image = dri->image->dupImage(image, NULL); dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &dri_format); gbm_format = gbm_dri_to_gbm_format(dri_format); if (gbm_format == 0) { errno = EINVAL; dri->image->destroyImage(image); return NULL; } break; } case GBM_BO_IMPORT_FD: { struct gbm_import_fd_data *fd_data = buffer; int stride = fd_data->stride, offset = 0; int fourcc; /* GBM's GBM_FORMAT_* tokens are a strict superset of the DRI FourCC * tokens accepted by createImageFromFds, except for not supporting * the sARGB format. */ fourcc = gbm_format_canonicalize(fd_data->format); image = dri->image->createImageFromFds(dri->screen, fd_data->width, fd_data->height, fourcc, &fd_data->fd, 1, &stride, &offset, NULL); if (image == NULL) { errno = EINVAL; return NULL; } gbm_format = fd_data->format; break; } case GBM_BO_IMPORT_FD_MODIFIER: { struct gbm_import_fd_modifier_data *fd_data = buffer; unsigned int error; int fourcc; /* Import with modifier requires createImageFromDmaBufs2 */ if (dri->image == NULL || dri->image->base.version < 15 || dri->image->createImageFromDmaBufs2 == NULL) { errno = ENOSYS; return NULL; } /* GBM's GBM_FORMAT_* tokens are a strict superset of the DRI FourCC * tokens accepted by createImageFromDmaBufs2, except for not supporting * the sARGB format. */ fourcc = gbm_format_canonicalize(fd_data->format); image = dri->image->createImageFromDmaBufs2(dri->screen, fd_data->width, fd_data->height, fourcc, fd_data->modifier, fd_data->fds, fd_data->num_fds, fd_data->strides, fd_data->offsets, 0, 0, 0, 0, &error, NULL); if (image == NULL) { errno = ENOSYS; return NULL; } gbm_format = fourcc; break; } default: errno = ENOSYS; return NULL; } bo = calloc(1, sizeof *bo); if (bo == NULL) { dri->image->destroyImage(image); return NULL; } bo->image = image; if (usage & GBM_BO_USE_SCANOUT) dri_use |= __DRI_IMAGE_USE_SCANOUT; if (usage & GBM_BO_USE_CURSOR) dri_use |= __DRI_IMAGE_USE_CURSOR; if (dri->image->base.version >= 2 && !dri->image->validateUsage(bo->image, dri_use)) { errno = EINVAL; dri->image->destroyImage(bo->image); free(bo); return NULL; } bo->base.gbm = gbm; bo->base.format = gbm_format; dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_WIDTH, (int*)&bo->base.width); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HEIGHT, (int*)&bo->base.height); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE, (int*)&bo->base.stride); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE, &bo->base.handle.s32); return &bo->base; } static struct gbm_bo * create_dumb(struct gbm_device *gbm, uint32_t width, uint32_t height, uint32_t format, uint32_t usage) { struct gbm_dri_device *dri = gbm_dri_device(gbm); struct drm_mode_create_dumb create_arg; struct gbm_dri_bo *bo; struct drm_mode_destroy_dumb destroy_arg; int ret; int is_cursor, is_scanout; is_cursor = (usage & GBM_BO_USE_CURSOR) != 0 && format == GBM_FORMAT_ARGB8888; is_scanout = (usage & GBM_BO_USE_SCANOUT) != 0 && (format == GBM_FORMAT_XRGB8888 || format == GBM_FORMAT_XBGR8888); if (!is_cursor && !is_scanout) { errno = EINVAL; return NULL; } bo = calloc(1, sizeof *bo); if (bo == NULL) return NULL; memset(&create_arg, 0, sizeof(create_arg)); create_arg.bpp = 32; create_arg.width = width; create_arg.height = height; ret = drmIoctl(dri->base.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg); if (ret) goto free_bo; bo->base.gbm = gbm; bo->base.width = width; bo->base.height = height; bo->base.stride = create_arg.pitch; bo->base.format = format; bo->base.handle.u32 = create_arg.handle; bo->handle = create_arg.handle; bo->size = create_arg.size; if (gbm_dri_bo_map_dumb(bo) == NULL) goto destroy_dumb; return &bo->base; destroy_dumb: memset(&destroy_arg, 0, sizeof destroy_arg); destroy_arg.handle = create_arg.handle; drmIoctl(dri->base.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg); free_bo: free(bo); return NULL; } static struct gbm_bo * gbm_dri_bo_create(struct gbm_device *gbm, uint32_t width, uint32_t height, uint32_t format, uint32_t usage, const uint64_t *modifiers, const unsigned int count) { struct gbm_dri_device *dri = gbm_dri_device(gbm); struct gbm_dri_bo *bo; int dri_format; unsigned dri_use = 0; /* Callers of this may specify a modifier, or a dri usage, but not both. The * newer modifier interface deprecates the older usage flags. */ assert(!(usage && count)); format = gbm_format_canonicalize(format); if (usage & GBM_BO_USE_WRITE || dri->image == NULL) return create_dumb(gbm, width, height, format, usage); bo = calloc(1, sizeof *bo); if (bo == NULL) return NULL; bo->base.gbm = gbm; bo->base.width = width; bo->base.height = height; bo->base.format = format; dri_format = gbm_format_to_dri_format(format); if (dri_format == 0) { errno = EINVAL; goto failed; } if (usage & GBM_BO_USE_SCANOUT) dri_use |= __DRI_IMAGE_USE_SCANOUT; if (usage & GBM_BO_USE_CURSOR) dri_use |= __DRI_IMAGE_USE_CURSOR; if (usage & GBM_BO_USE_LINEAR) dri_use |= __DRI_IMAGE_USE_LINEAR; /* Gallium drivers requires shared in order to get the handle/stride */ dri_use |= __DRI_IMAGE_USE_SHARE; if (modifiers) { if (!dri->image || dri->image->base.version < 14 || !dri->image->createImageWithModifiers) { fprintf(stderr, "Modifiers specified, but DRI is too old\n"); errno = ENOSYS; goto failed; } /* It's acceptable to create an image with INVALID modifier in the list, * but it cannot be on the only modifier (since it will certainly fail * later). While we could easily catch this after modifier creation, doing * the check here is a convenient debug check likely pointing at whatever * interface the client is using to build its modifier list. */ if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) { fprintf(stderr, "Only invalid modifier specified\n"); errno = EINVAL; goto failed; } bo->image = dri->image->createImageWithModifiers(dri->screen, width, height, dri_format, modifiers, count, bo); if (bo->image) { /* The client passed in a list of invalid modifiers */ assert(gbm_dri_bo_get_modifier(&bo->base) != DRM_FORMAT_MOD_INVALID); } } else { bo->image = dri->image->createImage(dri->screen, width, height, dri_format, dri_use, bo); } if (bo->image == NULL) goto failed; dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE, &bo->base.handle.s32); dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE, (int *) &bo->base.stride); return &bo->base; failed: free(bo); return NULL; } static void * gbm_dri_bo_map(struct gbm_bo *_bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height, uint32_t flags, uint32_t *stride, void **map_data) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); /* If it's a dumb buffer, we already have a mapping */ if (bo->map) { *map_data = (char *)bo->map + (bo->base.stride * y) + (x * 4); *stride = bo->base.stride; return *map_data; } if (!dri->image || dri->image->base.version < 12 || !dri->image->mapImage) { errno = ENOSYS; return NULL; } mtx_lock(&dri->mutex); if (!dri->context) dri->context = dri->dri2->createNewContext(dri->screen, NULL, NULL, NULL); assert(dri->context); mtx_unlock(&dri->mutex); /* GBM flags and DRI flags are the same, so just pass them on */ return dri->image->mapImage(dri->context, bo->image, x, y, width, height, flags, (int *)stride, map_data); } static void gbm_dri_bo_unmap(struct gbm_bo *_bo, void *map_data) { struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm); struct gbm_dri_bo *bo = gbm_dri_bo(_bo); /* Check if it's a dumb buffer and check the pointer is in range */ if (bo->map) { assert(map_data >= bo->map); assert(map_data < (bo->map + bo->size)); return; } if (!dri->context || !dri->image || dri->image->base.version < 12 || !dri->image->unmapImage) return; dri->image->unmapImage(dri->context, bo->image, map_data); /* * Not all DRI drivers use direct maps. They may queue up DMA operations * on the mapping context. Since there is no explicit gbm flush * mechanism, we need to flush here. */ if (dri->flush->base.version >= 4) dri->flush->flush_with_flags(dri->context, NULL, __DRI2_FLUSH_CONTEXT, 0); } static struct gbm_surface * gbm_dri_surface_create(struct gbm_device *gbm, uint32_t width, uint32_t height, uint32_t format, uint32_t flags, const uint64_t *modifiers, const unsigned count) { struct gbm_dri_device *dri = gbm_dri_device(gbm); struct gbm_dri_surface *surf; if (modifiers && (!dri->image || dri->image->base.version < 14 || !dri->image->createImageWithModifiers)) { errno = ENOSYS; return NULL; } if (count) assert(modifiers); /* It's acceptable to create an image with INVALID modifier in the list, * but it cannot be on the only modifier (since it will certainly fail * later). While we could easily catch this after modifier creation, doing * the check here is a convenient debug check likely pointing at whatever * interface the client is using to build its modifier list. */ if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) { fprintf(stderr, "Only invalid modifier specified\n"); errno = EINVAL; } surf = calloc(1, sizeof *surf); if (surf == NULL) { errno = ENOMEM; return NULL; } surf->base.gbm = gbm; surf->base.width = width; surf->base.height = height; surf->base.format = gbm_format_canonicalize(format); surf->base.flags = flags; if (!modifiers) { assert(!count); return &surf->base; } surf->base.modifiers = calloc(count, sizeof(*modifiers)); if (count && !surf->base.modifiers) { errno = ENOMEM; free(surf); return NULL; } /* TODO: We are deferring validation of modifiers until the image is actually * created. This deferred creation can fail due to a modifier-format * mismatch. The result is the client has a surface but no object to back it. */ surf->base.count = count; memcpy(surf->base.modifiers, modifiers, count * sizeof(*modifiers)); return &surf->base; } static void gbm_dri_surface_destroy(struct gbm_surface *_surf) { struct gbm_dri_surface *surf = gbm_dri_surface(_surf); free(surf->base.modifiers); free(surf); } static void dri_destroy(struct gbm_device *gbm) { struct gbm_dri_device *dri = gbm_dri_device(gbm); unsigned i; if (dri->context) dri->core->destroyContext(dri->context); dri->core->destroyScreen(dri->screen); for (i = 0; dri->driver_configs[i]; i++) free((__DRIconfig *) dri->driver_configs[i]); free(dri->driver_configs); dlclose(dri->driver); free(dri->driver_name); free(dri); } static struct gbm_device * dri_device_create(int fd) { struct gbm_dri_device *dri; int ret; bool force_sw; dri = calloc(1, sizeof *dri); if (!dri) return NULL; dri->base.fd = fd; dri->base.bo_create = gbm_dri_bo_create; dri->base.bo_import = gbm_dri_bo_import; dri->base.bo_map = gbm_dri_bo_map; dri->base.bo_unmap = gbm_dri_bo_unmap; dri->base.is_format_supported = gbm_dri_is_format_supported; dri->base.get_format_modifier_plane_count = gbm_dri_get_format_modifier_plane_count; dri->base.bo_write = gbm_dri_bo_write; dri->base.bo_get_fd = gbm_dri_bo_get_fd; dri->base.bo_get_planes = gbm_dri_bo_get_planes; dri->base.bo_get_handle = gbm_dri_bo_get_handle_for_plane; dri->base.bo_get_stride = gbm_dri_bo_get_stride; dri->base.bo_get_offset = gbm_dri_bo_get_offset; dri->base.bo_get_modifier = gbm_dri_bo_get_modifier; dri->base.bo_destroy = gbm_dri_bo_destroy; dri->base.destroy = dri_destroy; dri->base.surface_create = gbm_dri_surface_create; dri->base.surface_destroy = gbm_dri_surface_destroy; dri->base.name = "drm"; mtx_init(&dri->mutex, mtx_plain); force_sw = env_var_as_boolean("GBM_ALWAYS_SOFTWARE", false); if (!force_sw) { ret = dri_screen_create(dri); if (ret) ret = dri_screen_create_sw(dri); } else { ret = dri_screen_create_sw(dri); } if (ret) goto err_dri; return &dri->base; err_dri: free(dri); return NULL; } struct gbm_backend gbm_dri_backend = { .backend_name = "dri", .create_device = dri_device_create, };