1 /* 2 * Copyright (C) 2015 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-generic" 18 19 #include "drmresources.h" 20 #include "platform.h" 21 #include "platformdrmgeneric.h" 22 23 #include <drm/drm_fourcc.h> 24 #include <xf86drm.h> 25 #include <xf86drmMode.h> 26 27 #include <cutils/log.h> 28 #include <gralloc_drm_handle.h> 29 #include <hardware/gralloc.h> 30 #include <EGL/eglext.h> 31 32 namespace android { 33 34 #ifdef USE_DRM_GENERIC_IMPORTER 35 // static 36 Importer *Importer::CreateInstance(DrmResources *drm) { 37 DrmGenericImporter *importer = new DrmGenericImporter(drm); 38 if (!importer) 39 return NULL; 40 41 int ret = importer->Init(); 42 if (ret) { 43 ALOGE("Failed to initialize the nv importer %d", ret); 44 delete importer; 45 return NULL; 46 } 47 return importer; 48 } 49 #endif 50 51 DrmGenericImporter::DrmGenericImporter(DrmResources *drm) : drm_(drm) { 52 } 53 54 DrmGenericImporter::~DrmGenericImporter() { 55 } 56 57 int DrmGenericImporter::Init() { 58 int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, 59 (const hw_module_t **)&gralloc_); 60 if (ret) { 61 ALOGE("Failed to open gralloc module"); 62 return ret; 63 } 64 return 0; 65 } 66 67 uint32_t DrmGenericImporter::ConvertHalFormatToDrm(uint32_t hal_format) { 68 switch (hal_format) { 69 case HAL_PIXEL_FORMAT_RGB_888: 70 return DRM_FORMAT_BGR888; 71 case HAL_PIXEL_FORMAT_BGRA_8888: 72 return DRM_FORMAT_ARGB8888; 73 case HAL_PIXEL_FORMAT_RGBX_8888: 74 return DRM_FORMAT_XBGR8888; 75 case HAL_PIXEL_FORMAT_RGBA_8888: 76 return DRM_FORMAT_ABGR8888; 77 case HAL_PIXEL_FORMAT_RGB_565: 78 return DRM_FORMAT_BGR565; 79 case HAL_PIXEL_FORMAT_YV12: 80 return DRM_FORMAT_YVU420; 81 default: 82 ALOGE("Cannot convert hal format to drm format %u", hal_format); 83 return -EINVAL; 84 } 85 } 86 87 EGLImageKHR DrmGenericImporter::ImportImage(EGLDisplay egl_display, buffer_handle_t handle) { 88 gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle); 89 if (!gr_handle) 90 return NULL; 91 EGLint attr[] = { 92 EGL_WIDTH, gr_handle->width, 93 EGL_HEIGHT, gr_handle->height, 94 EGL_LINUX_DRM_FOURCC_EXT, (EGLint)ConvertHalFormatToDrm(gr_handle->format), 95 EGL_DMA_BUF_PLANE0_FD_EXT, gr_handle->prime_fd, 96 EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0, 97 EGL_DMA_BUF_PLANE0_PITCH_EXT, gr_handle->stride, 98 EGL_NONE, 99 }; 100 return eglCreateImageKHR(egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attr); 101 } 102 103 int DrmGenericImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) { 104 gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle); 105 if (!gr_handle) 106 return -EINVAL; 107 108 uint32_t gem_handle; 109 int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->prime_fd, &gem_handle); 110 if (ret) { 111 ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret); 112 return ret; 113 } 114 115 memset(bo, 0, sizeof(hwc_drm_bo_t)); 116 bo->width = gr_handle->width; 117 bo->height = gr_handle->height; 118 bo->format = ConvertHalFormatToDrm(gr_handle->format); 119 bo->pitches[0] = gr_handle->stride; 120 bo->gem_handles[0] = gem_handle; 121 bo->offsets[0] = 0; 122 123 ret = drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format, 124 bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0); 125 if (ret) { 126 ALOGE("could not create drm fb %d", ret); 127 return ret; 128 } 129 130 return ret; 131 } 132 133 int DrmGenericImporter::ReleaseBuffer(hwc_drm_bo_t *bo) { 134 if (bo->fb_id) 135 if (drmModeRmFB(drm_->fd(), bo->fb_id)) 136 ALOGE("Failed to rm fb"); 137 138 struct drm_gem_close gem_close; 139 memset(&gem_close, 0, sizeof(gem_close)); 140 int num_gem_handles = sizeof(bo->gem_handles) / sizeof(bo->gem_handles[0]); 141 for (int i = 0; i < num_gem_handles; i++) { 142 if (!bo->gem_handles[i]) 143 continue; 144 145 gem_close.handle = bo->gem_handles[i]; 146 int ret = drmIoctl(drm_->fd(), DRM_IOCTL_GEM_CLOSE, &gem_close); 147 if (ret) 148 ALOGE("Failed to close gem handle %d %d", i, ret); 149 else 150 bo->gem_handles[i] = 0; 151 } 152 return 0; 153 } 154 155 #ifdef USE_DRM_GENERIC_IMPORTER 156 std::unique_ptr<Planner> Planner::CreateInstance(DrmResources *) { 157 std::unique_ptr<Planner> planner(new Planner); 158 planner->AddStage<PlanStageGreedy>(); 159 return planner; 160 } 161 #endif 162 } 163
