summaryrefslogtreecommitdiff
path: root/platformdrmgeneric.cpp
blob: 90337f098517e3ae399e75636065e03bd2eaa0d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define LOG_TAG "hwc-platform-drm-generic"

#include "drmresources.h"
#include "platform.h"
#include "platformdrmgeneric.h"

#include <drm/drm_fourcc.h>
#include <xf86drm.h>
#include <xf86drmMode.h>

#include <cutils/log.h>
#include <gralloc_drm_handle.h>
#include <hardware/gralloc.h>
#include <EGL/eglext.h>

namespace android {

#ifdef USE_DRM_GENERIC_IMPORTER
// static
Importer *Importer::CreateInstance(DrmResources *drm) {
  DrmGenericImporter *importer = new DrmGenericImporter(drm);
  if (!importer)
    return NULL;

  int ret = importer->Init();
  if (ret) {
    ALOGE("Failed to initialize the nv importer %d", ret);
    delete importer;
    return NULL;
  }
  return importer;
}
#endif

DrmGenericImporter::DrmGenericImporter(DrmResources *drm) : drm_(drm) {
}

DrmGenericImporter::~DrmGenericImporter() {
}

int DrmGenericImporter::Init() {
  int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
                          (const hw_module_t **)&gralloc_);
  if (ret) {
    ALOGE("Failed to open gralloc module");
    return ret;
  }
  return 0;
}

uint32_t DrmGenericImporter::ConvertHalFormatToDrm(uint32_t hal_format) {
  switch (hal_format) {
    case HAL_PIXEL_FORMAT_RGB_888:
      return DRM_FORMAT_BGR888;
    case HAL_PIXEL_FORMAT_BGRA_8888:
      return DRM_FORMAT_ARGB8888;
    case HAL_PIXEL_FORMAT_RGBX_8888:
      return DRM_FORMAT_XBGR8888;
    case HAL_PIXEL_FORMAT_RGBA_8888:
      return DRM_FORMAT_ABGR8888;
    case HAL_PIXEL_FORMAT_RGB_565:
      return DRM_FORMAT_BGR565;
    case HAL_PIXEL_FORMAT_YV12:
      return DRM_FORMAT_YVU420;
    default:
      ALOGE("Cannot convert hal format to drm format %u", hal_format);
      return -EINVAL;
  }
}

EGLImageKHR DrmGenericImporter::ImportImage(EGLDisplay egl_display,
                                            DrmHwcBuffer *buffer,
                                            buffer_handle_t handle) {
  gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle);
  EGLImageKHR image = EGL_NO_IMAGE_KHR;

  if (!gr_handle) {
    ALOGE("Cannot get gralloc_drm_handle");
    return image;
  }

  // Note: If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT
  // target, the EGL will take a reference to the dma_buf.
  if (buffer->operator->()->format == DRM_FORMAT_YUV420) {
    const EGLint attr_list_yv12[] = {
        EGL_WIDTH,
        static_cast<EGLint>(buffer->operator->()->width),
        EGL_HEIGHT,
        static_cast<EGLint>(buffer->operator->()->height),
        EGL_LINUX_DRM_FOURCC_EXT,
        DRM_FORMAT_YUV420,
        EGL_DMA_BUF_PLANE0_FD_EXT,
        gr_handle->prime_fd,
        EGL_DMA_BUF_PLANE0_PITCH_EXT,
        static_cast<EGLint>(buffer->operator->()->pitches[0]),
        EGL_DMA_BUF_PLANE0_OFFSET_EXT,
        static_cast<EGLint>(buffer->operator->()->offsets[0]),
        EGL_DMA_BUF_PLANE1_FD_EXT,
        gr_handle->prime_fd,
        EGL_DMA_BUF_PLANE1_PITCH_EXT,
        static_cast<EGLint>(buffer->operator->()->pitches[1]),
        EGL_DMA_BUF_PLANE1_OFFSET_EXT,
        static_cast<EGLint>(buffer->operator->()->offsets[1]),
        EGL_DMA_BUF_PLANE2_FD_EXT,
        gr_handle->prime_fd,
        EGL_DMA_BUF_PLANE2_PITCH_EXT,
        static_cast<EGLint>(buffer->operator->()->pitches[2]),
        EGL_DMA_BUF_PLANE2_OFFSET_EXT,
        static_cast<EGLint>(buffer->operator->()->offsets[2]),
        EGL_NONE,
        0};
    image = eglCreateImageKHR(
        egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT,
        static_cast<EGLClientBuffer>(nullptr), attr_list_yv12);
  } else {
    const EGLint attr_list[] = {
        EGL_WIDTH,
        static_cast<EGLint>(buffer->operator->()->width),
        EGL_HEIGHT,
        static_cast<EGLint>(buffer->operator->()->height),
        EGL_LINUX_DRM_FOURCC_EXT,
        static_cast<EGLint>(buffer->operator->()->format),
        EGL_DMA_BUF_PLANE0_FD_EXT,
        gr_handle->prime_fd,
        EGL_DMA_BUF_PLANE0_PITCH_EXT,
        static_cast<EGLint>(buffer->operator->()->pitches[0]),
        EGL_DMA_BUF_PLANE0_OFFSET_EXT,
        0,
        EGL_NONE,
        0};
    image =
        eglCreateImageKHR(egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT,
                          static_cast<EGLClientBuffer>(nullptr), attr_list);
  }

  return image;
}

int DrmGenericImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
  gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle);
  if (!gr_handle)
    return -EINVAL;

  uint32_t gem_handle;
  int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->prime_fd, &gem_handle);
  if (ret) {
    ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret);
    return ret;
  }

  memset(bo, 0, sizeof(hwc_drm_bo_t));
  bo->width = gr_handle->width;
  bo->height = gr_handle->height;
  bo->format = ConvertHalFormatToDrm(gr_handle->format);
  bo->pitches[0] = gr_handle->stride;
  bo->gem_handles[0] = gem_handle;
  bo->offsets[0] = 0;

  return 0;
}

int DrmGenericImporter::CreateFrameBuffer(hwc_drm_bo_t *bo,
                                          uint32_t /*plane_type*/) {
  int ret =
      drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format,
                    bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0);

  if (ret) {
    ALOGE("drmModeAddFB2 error (%dx%d, %c%c%c%c, handle %d pitch %d) (%s)",
          bo->width, bo->height, bo->format, bo->format >> 8, bo->format >> 16,
          bo->format >> 24, bo->gem_handles[0], bo->pitches[0], strerror(-ret));
  }

  return ret;
}

int DrmGenericImporter::ReleaseBuffer(hwc_drm_bo_t *bo) {
  if (bo->fb_id)
    if (drmModeRmFB(drm_->fd(), bo->fb_id))
      ALOGE("Failed to rm fb");

  struct drm_gem_close gem_close;
  memset(&gem_close, 0, sizeof(gem_close));
  int num_gem_handles = sizeof(bo->gem_handles) / sizeof(bo->gem_handles[0]);
  for (int i = 0; i < num_gem_handles; i++) {
    if (!bo->gem_handles[i])
      continue;

    gem_close.handle = bo->gem_handles[i];
    int ret = drmIoctl(drm_->fd(), DRM_IOCTL_GEM_CLOSE, &gem_close);
    if (ret)
      ALOGE("Failed to close gem handle %d %d", i, ret);
    else
      bo->gem_handles[i] = 0;
  }
  return 0;
}

#ifdef USE_DRM_GENERIC_IMPORTER
std::unique_ptr<Planner> Planner::CreateInstance(DrmResources *) {
  std::unique_ptr<Planner> planner(new Planner);
  planner->AddStage<PlanStageGreedy>();
  return planner;
}
#endif
}