1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #define LOG_TAG "hwc-platform-drm-minigbm"
18
19 #include "platformminigbm.h"
20 #include "drmdevice.h"
21 #include "platform.h"
22
23 #include <drm/drm_fourcc.h>
24 #include <xf86drm.h>
25 #include <xf86drmMode.h>
26
27 #include <hardware/gralloc.h>
28 #include <log/log.h>
29
30 #include "cros_gralloc_handle.h"
31
32 namespace android {
33
CreateInstance(DrmDevice * drm)34 Importer *Importer::CreateInstance(DrmDevice *drm) {
35 DrmMinigbmImporter *importer = new DrmMinigbmImporter(drm);
36 if (!importer)
37 return NULL;
38
39 int ret = importer->Init();
40 if (ret) {
41 ALOGE("Failed to initialize the minigbm importer %d", ret);
42 delete importer;
43 return NULL;
44 }
45 return importer;
46 }
47
DrmMinigbmImporter(DrmDevice * drm)48 DrmMinigbmImporter::DrmMinigbmImporter(DrmDevice *drm)
49 : DrmGenericImporter(drm), drm_(drm) {
50 }
51
~DrmMinigbmImporter()52 DrmMinigbmImporter::~DrmMinigbmImporter() {
53 }
54
Init()55 int DrmMinigbmImporter::Init() {
56 int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
57 (const hw_module_t **)&gralloc_);
58 if (ret) {
59 ALOGE("Failed to open gralloc module %d", ret);
60 return ret;
61 }
62
63 if (strcasecmp(gralloc_->common.author, "Chrome OS"))
64 ALOGW("Using non-minigbm gralloc module: %s/%s\n", gralloc_->common.name,
65 gralloc_->common.author);
66
67 return 0;
68 }
69
ImportBuffer(buffer_handle_t handle,hwc_drm_bo_t * bo)70 int DrmMinigbmImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
71 cros_gralloc_handle *gr_handle = (cros_gralloc_handle *)handle;
72 if (!gr_handle)
73 return -EINVAL;
74
75 uint32_t gem_handle;
76 int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->fds[0], &gem_handle);
77 if (ret) {
78 ALOGE("failed to import prime fd %d ret=%d", gr_handle->fds[0], ret);
79 return ret;
80 }
81
82 memset(bo, 0, sizeof(hwc_drm_bo_t));
83 bo->width = gr_handle->width;
84 bo->height = gr_handle->height;
85 bo->hal_format = gr_handle->droid_format;
86 bo->format = gr_handle->format;
87 bo->usage = gr_handle->usage;
88 bo->pixel_stride = gr_handle->pixel_stride;
89 bo->pitches[0] = gr_handle->strides[0];
90 bo->offsets[0] = gr_handle->offsets[0];
91 bo->gem_handles[0] = gem_handle;
92
93 ret = drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format,
94 bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0);
95 if (ret) {
96 ALOGE("could not create drm fb %d", ret);
97 return ret;
98 }
99
100 return ret;
101 }
102
CreateInstance(DrmDevice *)103 std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
104 std::unique_ptr<Planner> planner(new Planner);
105 planner->AddStage<PlanStageGreedy>();
106 return planner;
107 }
108
109 } // namespace android
110