2 * Copyright (C) 2015 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <cutils/log.h>
21 #include <drm/drm_fourcc.h>
23 #include <gralloc_drm.h>
24 #include <gralloc_drm_priv.h>
25 #include <gralloc_drm_handle.h>
27 #include "drm_hwcomposer.h"
29 struct hwc_import_context {
30 struct drm_module_t *gralloc_module;
33 int hwc_import_init(struct hwc_import_context **ctx) {
34 struct hwc_import_context *import_ctx;
36 import_ctx = (struct hwc_import_context *)calloc(1, sizeof(*import_ctx));
38 ALOGE("Failed to allocate gralloc import context");
42 int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
43 (const hw_module_t **)&import_ctx->gralloc_module);
45 ALOGE("Failed to open gralloc module");
55 int hwc_import_destroy(struct hwc_import_context *ctx) {
60 static uint32_t hwc_convert_hal_format_to_drm_format(uint32_t hal_format) {
62 case HAL_PIXEL_FORMAT_RGB_888:
63 return DRM_FORMAT_BGR888;
64 case HAL_PIXEL_FORMAT_BGRA_8888:
65 return DRM_FORMAT_ARGB8888;
66 case HAL_PIXEL_FORMAT_RGBX_8888:
67 return DRM_FORMAT_XBGR8888;
68 case HAL_PIXEL_FORMAT_RGBA_8888:
69 return DRM_FORMAT_ABGR8888;
70 case HAL_PIXEL_FORMAT_RGB_565:
71 return DRM_FORMAT_BGR565;
72 case HAL_PIXEL_FORMAT_YV12:
73 return DRM_FORMAT_YVU420;
75 ALOGE("Cannot convert hal format to drm format %u", hal_format);
80 int hwc_import_bo_create(int fd, hwc_import_context *ctx,
81 buffer_handle_t handle, struct hwc_drm_bo *bo) {
82 gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle);
86 struct gralloc_drm_bo_t *gralloc_bo = gr_handle->data;
88 ALOGE("Could not get drm bo from handle");
93 int ret = drmPrimeFDToHandle(fd, gr_handle->prime_fd, &gem_handle);
95 ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret);
99 bo->width = gr_handle->width;
100 bo->height = gr_handle->height;
101 bo->format = hwc_convert_hal_format_to_drm_format(gr_handle->format);
102 bo->pitches[0] = gr_handle->stride;
103 bo->gem_handles[0] = gem_handle;
106 ret = drmModeAddFB2(fd, bo->width, bo->height, bo->format, bo->gem_handles,
107 bo->pitches, bo->offsets, &bo->fb_id, 0);
109 ALOGE("could not create drm fb %d", ret);
116 bool hwc_import_bo_release(int fd, hwc_import_context */* ctx */,
117 struct hwc_drm_bo *bo) {
119 if (drmModeRmFB(fd, bo->fb_id))
120 ALOGE("Failed to rm fb");
122 /* hwc may close the gem handles now. */