2 * Copyright 2017 Advanced Micro Devices. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
27 } drm_to_dri_image_formats[] = {
28 { DRM_FORMAT_R8, __DRI_IMAGE_FORMAT_R8 },
29 { DRM_FORMAT_GR88, __DRI_IMAGE_FORMAT_GR88 },
30 { DRM_FORMAT_RGB565, __DRI_IMAGE_FORMAT_RGB565 },
31 { DRM_FORMAT_XRGB8888, __DRI_IMAGE_FORMAT_XRGB8888 },
32 { DRM_FORMAT_ARGB8888, __DRI_IMAGE_FORMAT_ARGB8888 },
33 { DRM_FORMAT_XBGR8888, __DRI_IMAGE_FORMAT_XBGR8888 },
34 { DRM_FORMAT_ABGR8888, __DRI_IMAGE_FORMAT_ABGR8888 },
35 { DRM_FORMAT_XRGB2101010, __DRI_IMAGE_FORMAT_XRGB2101010 },
36 { DRM_FORMAT_ARGB2101010, __DRI_IMAGE_FORMAT_ARGB2101010 },
39 static int drm_format_to_dri_format(uint32_t drm_format)
42 for (i = 0; i < ARRAY_SIZE(drm_to_dri_image_formats); i++) {
43 if (drm_to_dri_image_formats[i].drm_format == drm_format)
44 return drm_to_dri_image_formats[i].dri_image_format;
50 static bool lookup_extension(const __DRIextension *const *extensions, const char *name,
51 int min_version, const __DRIextension **dst)
54 if ((*extensions)->name && !strcmp((*extensions)->name, name) &&
55 (*extensions)->version >= min_version) {
67 * The DRI GEM namespace may be different from the minigbm's driver GEM namespace. We have
68 * to import into minigbm.
70 static int import_into_minigbm(struct dri_driver *dri, struct bo *bo)
75 if (!dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_FD, &prime_fd))
78 ret = drmPrimeFDToHandle(bo->drv->fd, prime_fd, &handle);
80 drv_log("drmPrimeFDToHandle failed with %s\n", strerror(errno));
84 bo->handles[0].u32 = handle;
90 * The caller is responsible for setting drv->priv to a structure that derives from dri_driver.
92 int dri_init(struct driver *drv, const char *dri_so_path, const char *driver_suffix)
95 const __DRIextension **(*get_extensions)();
96 const __DRIextension *loader_extensions[] = { NULL };
98 struct dri_driver *dri = drv->priv;
99 dri->driver_handle = dlopen(dri_so_path, RTLD_NOW | RTLD_GLOBAL);
100 if (!dri->driver_handle)
103 snprintf(fname, sizeof(fname), __DRI_DRIVER_GET_EXTENSIONS "_%s", driver_suffix);
104 get_extensions = dlsym(dri->driver_handle, fname);
108 dri->extensions = get_extensions();
109 if (!dri->extensions)
112 if (!lookup_extension(dri->extensions, __DRI_CORE, 2,
113 (const __DRIextension **)&dri->core_extension))
116 /* Version 4 for createNewScreen2 */
117 if (!lookup_extension(dri->extensions, __DRI_DRI2, 4,
118 (const __DRIextension **)&dri->dri2_extension))
121 dri->device = dri->dri2_extension->createNewScreen2(0, drv_get_fd(drv), loader_extensions,
122 dri->extensions, &dri->configs, NULL);
127 dri->dri2_extension->createNewContext(dri->device, *dri->configs, NULL, NULL);
132 if (!lookup_extension(dri->core_extension->getExtensions(dri->device), __DRI_IMAGE, 12,
133 (const __DRIextension **)&dri->image_extension))
136 if (!lookup_extension(dri->core_extension->getExtensions(dri->device), __DRI2_FLUSH, 4,
137 (const __DRIextension **)&dri->flush_extension))
143 dri->core_extension->destroyContext(dri->context);
145 dri->core_extension->destroyScreen(dri->device);
147 dlclose(dri->driver_handle);
148 dri->driver_handle = NULL;
153 * The caller is responsible for freeing drv->priv.
155 void dri_close(struct driver *drv)
157 struct dri_driver *dri = drv->priv;
159 dri->core_extension->destroyContext(dri->context);
160 dri->core_extension->destroyScreen(dri->device);
161 dlclose(dri->driver_handle);
162 dri->driver_handle = NULL;
165 int dri_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
168 unsigned int dri_use;
169 int ret, dri_format, stride, offset;
170 struct dri_driver *dri = bo->drv->priv;
172 assert(bo->num_planes == 1);
173 dri_format = drm_format_to_dri_format(format);
175 /* Gallium drivers require shared to get the handle and stride. */
176 dri_use = __DRI_IMAGE_USE_SHARE;
177 if (use_flags & BO_USE_SCANOUT)
178 dri_use |= __DRI_IMAGE_USE_SCANOUT;
179 if (use_flags & BO_USE_CURSOR)
180 dri_use |= __DRI_IMAGE_USE_CURSOR;
181 if (use_flags & BO_USE_LINEAR)
182 dri_use |= __DRI_IMAGE_USE_LINEAR;
184 bo->priv = dri->image_extension->createImage(dri->device, width, height, dri_format,
191 ret = import_into_minigbm(dri, bo);
195 if (!dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_STRIDE, &stride)) {
200 if (!dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_OFFSET, &offset)) {
205 bo->strides[0] = stride;
206 bo->sizes[0] = stride * height;
207 bo->offsets[0] = offset;
208 bo->total_size = offset + bo->sizes[0];
212 dri->image_extension->destroyImage(bo->priv);
216 int dri_bo_import(struct bo *bo, struct drv_import_fd_data *data)
219 struct dri_driver *dri = bo->drv->priv;
221 assert(bo->num_planes == 1);
224 bo->priv = dri->image_extension->createImageFromFds(dri->device, data->width, data->height,
225 data->format, data->fds, bo->num_planes,
226 (int *)data->strides,
227 (int *)data->offsets, NULL);
232 ret = import_into_minigbm(dri, bo);
234 dri->image_extension->destroyImage(bo->priv);
241 int dri_bo_destroy(struct bo *bo)
243 struct dri_driver *dri = bo->drv->priv;
246 dri->image_extension->destroyImage(bo->priv);
252 * Map an image plane.
254 * This relies on the underlying driver to do a decompressing and/or de-tiling
257 * This function itself is not thread-safe; we rely on the fact that the caller
258 * locks a per-driver mutex.
260 void *dri_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
262 struct dri_driver *dri = bo->drv->priv;
264 /* GBM flags and DRI flags are the same. */
266 dri->image_extension->mapImage(dri->context, bo->priv, 0, 0, bo->width, bo->height,
267 map_flags, (int *)&vma->map_strides[plane], &vma->priv);
274 int dri_bo_unmap(struct bo *bo, struct vma *vma)
276 struct dri_driver *dri = bo->drv->priv;
279 dri->image_extension->unmapImage(dri->context, bo->priv, vma->priv);
282 * From gbm_dri.c in Mesa:
284 * "Not all DRI drivers use direct maps. They may queue up DMA operations
285 * on the mapping context. Since there is no explicit gbm flush mechanism,
286 * we need to flush here."
289 dri->flush_extension->flush_with_flags(dri->context, NULL, __DRI2_FLUSH_CONTEXT, 0);