1 /*
2 * Copyright (C) Texas Instruments Incorporated - http://www.ti.com/
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 #include <log/log.h>
18 #include <drm/drm_fourcc.h>
19 #include <hardware/hwcomposer.h>
20
21 #include <xf86drm.h>
22 #include <xf86drmMode.h>
23
24 #include "drmfb.h"
25 #include "format.h"
26 #include "img_gralloc1_public.h"
27
DRMFramebuffer(int drm_fd,buffer_handle_t handle,bool is_overlay)28 DRMFramebuffer::DRMFramebuffer(int drm_fd, buffer_handle_t handle, bool is_overlay) :
29 bo(), pitches(), offsets()
30 {
31 if (!handle)
32 return;
33
34 uint32_t gem_handle;
35 IMG_native_handle_t* img_hnd = (IMG_native_handle_t*)handle;
36 int ret = drmPrimeFDToHandle(drm_fd, img_hnd->fd[0], &gem_handle);
37 if (ret) {
38 ALOGE("Failed to get DRM buffer object from handle");
39 return;
40 }
41
42 this->width = img_hnd->iWidth;
43 this->height = img_hnd->iHeight;
44 this->format = convert_hal_to_drm_format(img_hnd->iFormat, true);
45 this->bo[0] = gem_handle;
46 this->pitches[0] = ALIGN(img_hnd->iWidth, HW_ALIGN) * get_format_bpp(img_hnd->iFormat) >> 3;
47 this->offsets[0] = 0;
48 this->drm_fd = drm_fd;
49
50 if (is_overlay) {
51 switch (this->format) {
52 case DRM_FORMAT_NV12:
53 this->bo[1] = gem_handle;
54
55 this->pitches[0] = ALIGN(img_hnd->iWidth, HW_ALIGN);
56 this->pitches[1] = this->pitches[0];
57
58 this->offsets[1] = this->pitches[0] * img_hnd->iHeight;
59 break;
60 case DRM_FORMAT_ARGB8888:
61 case DRM_FORMAT_XRGB8888:
62 case DRM_FORMAT_RGB565:
63 break;
64 default:
65 ALOGE("Bad format for overlay");
66 return;
67 }
68 }
69
70 ret = drmModeAddFB2(drm_fd, this->width, this->height,
71 this->format, this->bo,
72 this->pitches, this->offsets,
73 &this->fb_id, 0);
74 if (ret) {
75 ALOGE("Could not create DRM frame buffer %d", ret);
76 return;
77 }
78 }
79
~DRMFramebuffer()80 DRMFramebuffer::~DRMFramebuffer()
81 {
82 if (this->fb_id) {
83 if (drmModeRmFB(this->drm_fd, this->fb_id))
84 ALOGE("Failed to remove DRM frame buffer");
85 }
86
87 for (size_t i = 0; i < 4; i++) {
88 if (this->bo[i]) {
89 struct drm_gem_close close_args = {
90 close_args.handle = this->bo[i],
91 close_args.pad = 0,
92 };
93 int ret = drmIoctl(this->drm_fd, DRM_IOCTL_GEM_CLOSE, &close_args);
94 if (ret) {
95 ALOGE("Failed to close GEM handle");
96 return;
97 }
98 }
99 }
100 }
101