Jorge E. Moreira | 7a8dadd | 2017-08-22 17:01:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 | #include "gralloc_vsoc_priv.h" |
| 18 | #include <hardware/gralloc.h> |
| 19 | #include <hardware/hardware.h> |
| 20 | #include <log/log.h> |
| 21 | #include <stdlib.h> |
| 22 | |
| 23 | namespace { |
| 24 | |
| 25 | static const int kSwiftShaderPadding = 4; |
| 26 | |
| 27 | inline void formatToYcbcr( |
| 28 | int format, int width, int height, void* base_v, android_ycbcr* ycbcr) { |
| 29 | uintptr_t it = reinterpret_cast<uintptr_t>(base_v); |
| 30 | // Clear reserved fields; |
| 31 | memset(ycbcr, 0, sizeof(*ycbcr)); |
| 32 | switch (format) { |
| 33 | case HAL_PIXEL_FORMAT_YV12: |
| 34 | case HAL_PIXEL_FORMAT_YCbCr_420_888: |
| 35 | ycbcr->ystride = align(width, 16); |
| 36 | ycbcr->cstride = align(ycbcr->ystride / 2, 16); |
| 37 | ycbcr->chroma_step = 1; |
| 38 | ycbcr->y = reinterpret_cast<void*>(it); |
| 39 | it += ycbcr->ystride * height; |
| 40 | ycbcr->cr = reinterpret_cast<void*>(it); |
| 41 | it += ycbcr->cstride * height / 2; |
| 42 | ycbcr->cb = reinterpret_cast<void*>(it); |
| 43 | break; |
| 44 | default: |
| 45 | ALOGE("%s: can't deal with format=0x%x", __FUNCTION__, format); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | inline int formatToBytesPerPixel(int format) { |
| 50 | switch (format) { |
| 51 | case HAL_PIXEL_FORMAT_RGBA_8888: |
| 52 | case HAL_PIXEL_FORMAT_RGBX_8888: |
| 53 | case HAL_PIXEL_FORMAT_BGRA_8888: |
| 54 | // The camera 3.0 implementation assumes that IMPLEMENTATION_DEFINED |
| 55 | // means HAL_PIXEL_FORMAT_RGBA_8888 |
| 56 | case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: |
| 57 | return 4; |
| 58 | case HAL_PIXEL_FORMAT_RGB_888: |
| 59 | return 3; |
| 60 | case HAL_PIXEL_FORMAT_RGB_565: |
| 61 | case HAL_PIXEL_FORMAT_YV12: |
| 62 | case HAL_PIXEL_FORMAT_YCbCr_420_888: |
| 63 | return 2; |
| 64 | case HAL_PIXEL_FORMAT_BLOB: |
| 65 | return 1; |
| 66 | default: |
| 67 | ALOGE("%s: unknown format=%d", __FUNCTION__, format); |
| 68 | return 4; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | inline int formatToBytesPerFrame(int format, int w, int h) { |
| 73 | int bytes_per_pixel = formatToBytesPerPixel(format); |
| 74 | int w16, h16; |
| 75 | int y_size, c_size; |
| 76 | |
| 77 | switch (format) { |
| 78 | // BLOB is used to allocate buffers for JPEG formatted data. Bytes per pixel |
| 79 | // is 1, the desired buffer size is in w, and h should be 1. We refrain from |
| 80 | // adding additional padding, although the caller is likely to round |
| 81 | // up to a page size. |
| 82 | case HAL_PIXEL_FORMAT_BLOB: |
| 83 | return bytes_per_pixel * w * h; |
| 84 | case HAL_PIXEL_FORMAT_YV12: |
| 85 | case HAL_PIXEL_FORMAT_YCbCr_420_888: |
| 86 | android_ycbcr strides; |
| 87 | formatToYcbcr(format, w, h, NULL, &strides); |
| 88 | y_size = strides.ystride * h; |
| 89 | c_size = strides.cstride * h / 2; |
| 90 | return (y_size + 2 * c_size + kSwiftShaderPadding); |
| 91 | /*case HAL_PIXEL_FORMAT_RGBA_8888: |
| 92 | case HAL_PIXEL_FORMAT_RGBX_8888: |
| 93 | case HAL_PIXEL_FORMAT_BGRA_8888: |
| 94 | case HAL_PIXEL_FORMAT_RGB_888: |
| 95 | case HAL_PIXEL_FORMAT_RGB_565:*/ |
| 96 | default: |
| 97 | w16 = align(w, 16); |
| 98 | h16 = align(h, 16); |
| 99 | return bytes_per_pixel * w16 * h16 + kSwiftShaderPadding; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | } |
| 104 | |
| 105 | /******************************************************************************/ |
| 106 | |
| 107 | void dump(struct alloc_device_t */*dev*/, char */*buff*/, int /*buff_len*/) {} |
| 108 | |
| 109 | /******************************************************************************/ |
| 110 | |
| 111 | int lock(struct gralloc_module_t const* /*module*/, |
| 112 | buffer_handle_t handle, |
| 113 | int /*usage*/, |
| 114 | int /*l*/, |
| 115 | int /*t*/, |
| 116 | int /*w*/, |
| 117 | int /*h*/, |
| 118 | void** vaddr) { |
| 119 | if (!vaddr || vsoc_buffer_handle_t::validate(handle)) { |
| 120 | return -EINVAL; |
| 121 | } |
| 122 | // TODO(jemoreira): Check allocation usage flags against requested usage. |
| 123 | const vsoc_buffer_handle_t* hnd = |
| 124 | reinterpret_cast<const vsoc_buffer_handle_t*>(handle); |
| 125 | void* mapped = reference_buffer(hnd); |
| 126 | if (mapped == NULL) { |
| 127 | ALOGE("Unable to reference buffer, %s", __FUNCTION__); |
| 128 | return -1; |
| 129 | } |
| 130 | *vaddr = mapped; |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | int unlock(struct gralloc_module_t const* /*module*/, buffer_handle_t handle) { |
| 135 | if (vsoc_buffer_handle_t::validate(handle)) { |
| 136 | return -EINVAL; |
| 137 | } |
| 138 | return unreference_buffer( |
| 139 | reinterpret_cast<const vsoc_buffer_handle_t*>(handle)); |
| 140 | } |
| 141 | |
| 142 | int lock_ycbcr(struct gralloc_module_t const* module, |
| 143 | buffer_handle_t handle, |
| 144 | int usage, |
| 145 | int l, |
| 146 | int t, |
| 147 | int w, |
| 148 | int h, |
| 149 | struct android_ycbcr* ycbcr) { |
| 150 | void* mapped; |
| 151 | int retval = lock(module, handle, usage, l, t, w, h, &mapped); |
| 152 | if (retval) { |
| 153 | return retval; |
| 154 | } |
| 155 | const vsoc_buffer_handle_t* hnd = |
| 156 | reinterpret_cast<const vsoc_buffer_handle_t*>(handle); |
| 157 | formatToYcbcr(hnd->format, w, h, mapped, ycbcr); |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | /******************************************************************************/ |
| 162 | |
| 163 | static int gralloc_alloc( |
| 164 | alloc_device_t* dev, int w, int h, int format, int /*usage*/, |
| 165 | buffer_handle_t* pHandle, int* pStrideInPixels) { |
| 166 | int fd = -1; |
| 167 | |
| 168 | int bytes_per_pixel = formatToBytesPerPixel(format); |
| 169 | int bytes_per_line; |
| 170 | int stride_in_pixels; |
| 171 | int size = 0; |
| 172 | uint32_t offset = 0; |
| 173 | // SwiftShader can't handle RGB_888, so fail fast and hard if we try to create |
| 174 | // a gralloc buffer in this format. |
| 175 | ALOG_ASSERT(format != HAL_PIXEL_FORMAT_RGB_888); |
| 176 | if (format == HAL_PIXEL_FORMAT_YV12) { |
| 177 | bytes_per_line = align(bytes_per_pixel * w, 16); |
| 178 | } else { |
| 179 | bytes_per_line = align(bytes_per_pixel * w, 8); |
| 180 | } |
| 181 | size = align(size + formatToBytesPerFrame(format, w, h), PAGE_SIZE); |
| 182 | size += PAGE_SIZE; |
| 183 | fd = reinterpret_cast<vsoc_alloc_device_t*>(dev) |
| 184 | ->gralloc_region->AllocateBuffer(size, &offset); |
| 185 | if (fd < 0) { |
| 186 | ALOGE("Unable to allocate buffer (%s)", strerror(-fd)); |
| 187 | return fd; |
| 188 | } |
| 189 | |
| 190 | stride_in_pixels = bytes_per_line / bytes_per_pixel; |
| 191 | vsoc_buffer_handle_t* hnd = new vsoc_buffer_handle_t(fd, |
| 192 | offset, |
| 193 | size, |
| 194 | format, |
| 195 | w, h, |
| 196 | stride_in_pixels); |
| 197 | void* addr = |
| 198 | reference_buffer(reinterpret_cast<const vsoc_buffer_handle_t*>(hnd)); |
| 199 | if (!addr) { |
| 200 | ALOGE("Unable to reference buffer, %s", __FUNCTION__); |
| 201 | return -EIO; |
| 202 | } |
| 203 | |
| 204 | *pHandle = hnd; |
| 205 | *pStrideInPixels = stride_in_pixels; |
| 206 | |
| 207 | return 0; |
| 208 | } |
| 209 | |
| 210 | static int gralloc_free(alloc_device_t* /*dev*/, buffer_handle_t handle) { |
| 211 | // No need to do anything else, the buffer will be atomatically deallocated |
| 212 | // when the handle is closed. |
| 213 | return unreference_buffer( |
| 214 | reinterpret_cast<const vsoc_buffer_handle_t*>(handle)); |
| 215 | } |
| 216 | |
| 217 | static int register_buffer(struct gralloc_module_t const* /*module*/, |
| 218 | buffer_handle_t handle) { |
| 219 | if (vsoc_buffer_handle_t::validate(handle)) { |
| 220 | return -EINVAL; |
| 221 | } |
| 222 | void* addr = |
| 223 | reference_buffer(reinterpret_cast<const vsoc_buffer_handle_t*>(handle)); |
| 224 | if (!addr) { |
| 225 | ALOGE("Unable to reference buffer, %s", __FUNCTION__); |
| 226 | return -EIO; |
| 227 | } |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | int unregister_buffer(struct gralloc_module_t const* /*module*/, |
| 232 | buffer_handle_t handle) { |
| 233 | if (vsoc_buffer_handle_t::validate(handle)) { |
| 234 | return -EINVAL; |
| 235 | } |
| 236 | return unreference_buffer( |
| 237 | reinterpret_cast<const vsoc_buffer_handle_t*>(handle)); |
| 238 | } |
| 239 | |
| 240 | /******************************************************************************/ |
| 241 | |
| 242 | static int gralloc_device_close(struct hw_device_t *dev) { |
| 243 | vsoc_alloc_device_t* pdev = reinterpret_cast<vsoc_alloc_device_t*>(dev); |
| 244 | if (pdev) { |
| 245 | free(pdev); |
| 246 | } |
| 247 | return 0; |
| 248 | } |
| 249 | |
| 250 | static int gralloc_device_open( |
| 251 | const hw_module_t* module, const char* name, hw_device_t** device) { |
| 252 | int status = -EINVAL; |
| 253 | if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) { |
| 254 | vsoc_alloc_device_t *dev; |
| 255 | dev = (vsoc_alloc_device_t*) malloc(sizeof(*dev)); |
| 256 | LOG_FATAL_IF(!dev, "%s: malloc returned NULL.", __FUNCTION__); |
| 257 | |
| 258 | /* initialize our state here */ |
| 259 | memset(dev, 0, sizeof(*dev)); |
| 260 | |
| 261 | /* initialize the procs */ |
| 262 | dev->device.common.tag = HARDWARE_DEVICE_TAG; |
| 263 | dev->device.common.version = 0; // TODO(jemoreira): Bump to 0_2 when stable |
| 264 | dev->device.common.module = const_cast<hw_module_t*>(module); |
| 265 | dev->device.common.close = gralloc_device_close; |
| 266 | |
| 267 | dev->device.alloc = gralloc_alloc; |
| 268 | dev->device.free = gralloc_free; |
| 269 | |
Greg Hartman | d072a34 | 2017-12-05 20:27:40 -0800 | [diff] [blame^] | 270 | dev->gralloc_region = vsoc::gralloc::GrallocRegionView::GetInstance(); |
Jorge E. Moreira | 7a8dadd | 2017-08-22 17:01:39 -0700 | [diff] [blame] | 271 | if (!dev->gralloc_region) { |
| 272 | LOG_FATAL("Unable to instantiate the gralloc region"); |
| 273 | free(dev); |
| 274 | return -EIO; |
| 275 | } |
| 276 | |
| 277 | *device = &dev->device.common; |
| 278 | status = 0; |
| 279 | } |
| 280 | // TODO(jemoreira): Consider opening other type of devices (framebuffer) |
| 281 | return status; |
| 282 | } |
| 283 | |
| 284 | /******************************************************************************/ |
| 285 | |
| 286 | static struct hw_module_methods_t gralloc_module_methods = { |
| 287 | .open = gralloc_device_open |
| 288 | }; |
| 289 | |
| 290 | struct vsoc_gralloc_module_t HAL_MODULE_INFO_SYM = { |
| 291 | .base = { |
| 292 | .common = { |
| 293 | .tag = HARDWARE_MODULE_TAG, |
| 294 | .version_major = GRALLOC_MODULE_API_VERSION_0_2, |
| 295 | .version_minor = 0, |
| 296 | .id = GRALLOC_HARDWARE_MODULE_ID, |
| 297 | .name = "VSoC X86 Graphics Memory Allocator Module", |
| 298 | .author = "The Android Open Source Project", |
| 299 | .methods = &gralloc_module_methods, |
| 300 | .dso = NULL, |
| 301 | .reserved = {0}, |
| 302 | }, |
| 303 | .registerBuffer = register_buffer, |
| 304 | .unregisterBuffer = unregister_buffer, |
| 305 | .lock = lock, |
| 306 | .unlock = unlock, |
| 307 | .lock_ycbcr = lock_ycbcr, |
| 308 | .perform = NULL, |
| 309 | }, |
| 310 | }; |