2 * Copyright 2016 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
7 #include "../cros_gralloc_driver.h"
9 #include <hardware/gralloc.h>
12 struct gralloc0_module {
13 gralloc_module_t base;
14 std::unique_ptr<alloc_device_t> alloc;
15 std::unique_ptr<cros_gralloc_driver> driver;
17 std::mutex initialization_mutex;
20 /* This enumeration must match the one in <gralloc_drm.h>.
21 * The functions supported by this gralloc's temporary private API are listed
22 * below. Use of these functions is highly discouraged and should only be
23 * reserved for cases where no alternative to get same information (such as
24 * querying ANativeWindow) exists.
28 GRALLOC_DRM_GET_STRIDE,
29 GRALLOC_DRM_GET_FORMAT,
30 GRALLOC_DRM_GET_DIMENSIONS,
31 GRALLOC_DRM_GET_BACKING_STORE,
35 static int64_t gralloc0_convert_flags(int flags)
37 uint64_t usage = BO_USE_NONE;
39 if (flags & GRALLOC_USAGE_CURSOR)
41 if ((flags & GRALLOC_USAGE_SW_READ_MASK) == GRALLOC_USAGE_SW_READ_RARELY)
42 usage |= BO_USE_SW_READ_RARELY;
43 if ((flags & GRALLOC_USAGE_SW_READ_MASK) == GRALLOC_USAGE_SW_READ_OFTEN)
44 usage |= BO_USE_SW_READ_OFTEN;
45 if ((flags & GRALLOC_USAGE_SW_WRITE_MASK) == GRALLOC_USAGE_SW_WRITE_RARELY)
46 usage |= BO_USE_SW_WRITE_RARELY;
47 if ((flags & GRALLOC_USAGE_SW_WRITE_MASK) == GRALLOC_USAGE_SW_WRITE_OFTEN)
48 usage |= BO_USE_SW_WRITE_OFTEN;
49 if (flags & GRALLOC_USAGE_HW_TEXTURE)
50 usage |= BO_USE_TEXTURE;
51 if (flags & GRALLOC_USAGE_HW_RENDER)
52 usage |= BO_USE_RENDERING;
53 if (flags & GRALLOC_USAGE_HW_2D)
54 usage |= BO_USE_RENDERING;
55 if (flags & GRALLOC_USAGE_HW_COMPOSER)
56 /* HWC wants to use display hardware, but can defer to OpenGL. */
57 usage |= BO_USE_SCANOUT | BO_USE_TEXTURE;
58 if (flags & GRALLOC_USAGE_HW_FB)
60 if (flags & GRALLOC_USAGE_EXTERNAL_DISP)
62 * This flag potentially covers external display for the normal drivers (i915,
63 * rockchip) and usb monitors (evdi/udl). It's complicated so ignore it.
66 if (flags & GRALLOC_USAGE_PROTECTED)
67 usage |= BO_USE_PROTECTED;
68 if (flags & GRALLOC_USAGE_HW_VIDEO_ENCODER)
69 /*HACK: See b/30054495 */
70 usage |= BO_USE_SW_READ_OFTEN;
71 if (flags & GRALLOC_USAGE_HW_CAMERA_WRITE)
72 usage |= BO_USE_CAMERA_WRITE;
73 if (flags & GRALLOC_USAGE_HW_CAMERA_READ)
74 usage |= BO_USE_CAMERA_READ;
75 if (flags & GRALLOC_USAGE_RENDERSCRIPT)
76 /* We use CPU for compute. */
77 usage |= BO_USE_LINEAR;
82 static int gralloc0_alloc(alloc_device_t *dev, int w, int h, int format, int usage,
83 buffer_handle_t *handle, int *stride)
87 struct cros_gralloc_buffer_descriptor descriptor;
88 auto mod = (struct gralloc0_module *)dev->common.module;
91 descriptor.height = h;
92 descriptor.droid_format = format;
93 descriptor.producer_usage = descriptor.consumer_usage = usage;
94 descriptor.drm_format = cros_gralloc_convert_format(format);
95 descriptor.drv_usage = gralloc0_convert_flags(usage);
97 supported = mod->driver->is_supported(&descriptor);
98 if (!supported && (usage & GRALLOC_USAGE_HW_COMPOSER)) {
99 descriptor.drv_usage &= ~BO_USE_SCANOUT;
100 supported = mod->driver->is_supported(&descriptor);
104 cros_gralloc_error("Unsupported combination -- HAL format: %u, HAL flags: %u, "
105 "drv_format: %4.4s, drv_flags: %llu",
106 format, usage, reinterpret_cast<char *>(&descriptor.drm_format),
107 static_cast<unsigned long long>(descriptor.drv_usage));
111 ret = mod->driver->allocate(&descriptor, handle);
115 auto hnd = cros_gralloc_convert_handle(*handle);
116 *stride = hnd->pixel_stride;
121 static int gralloc0_free(alloc_device_t *dev, buffer_handle_t handle)
123 auto mod = (struct gralloc0_module *)dev->common.module;
124 return mod->driver->release(handle);
127 static int gralloc0_close(struct hw_device_t *dev)
129 /* Memory is freed by managed pointers on process close. */
133 static int gralloc0_init(struct gralloc0_module *mod, bool initialize_alloc)
135 std::lock_guard<std::mutex> lock(mod->initialization_mutex);
137 if (mod->initialized)
140 mod->driver = std::make_unique<cros_gralloc_driver>();
141 if (mod->driver->init()) {
142 cros_gralloc_error("Failed to initialize driver.");
146 if (initialize_alloc) {
147 mod->alloc = std::make_unique<alloc_device_t>();
148 mod->alloc->alloc = gralloc0_alloc;
149 mod->alloc->free = gralloc0_free;
150 mod->alloc->common.tag = HARDWARE_DEVICE_TAG;
151 mod->alloc->common.version = 0;
152 mod->alloc->common.module = (hw_module_t *)mod;
153 mod->alloc->common.close = gralloc0_close;
156 mod->initialized = true;
160 static int gralloc0_open(const struct hw_module_t *mod, const char *name, struct hw_device_t **dev)
162 auto module = (struct gralloc0_module *)mod;
164 if (module->initialized) {
165 *dev = &module->alloc->common;
169 if (strcmp(name, GRALLOC_HARDWARE_GPU0)) {
170 cros_gralloc_error("Incorrect device name - %s.", name);
174 if (gralloc0_init(module, true))
177 *dev = &module->alloc->common;
181 static int gralloc0_register_buffer(struct gralloc_module_t const *module, buffer_handle_t handle)
183 auto mod = (struct gralloc0_module *)module;
185 if (!mod->initialized)
186 if (gralloc0_init(mod, false))
189 return mod->driver->retain(handle);
192 static int gralloc0_unregister_buffer(struct gralloc_module_t const *module, buffer_handle_t handle)
194 auto mod = (struct gralloc0_module *)module;
195 return mod->driver->release(handle);
198 static int gralloc0_lock(struct gralloc_module_t const *module, buffer_handle_t handle, int usage,
199 int l, int t, int w, int h, void **vaddr)
201 return module->lockAsync(module, handle, usage, l, t, w, h, vaddr, -1);
204 static int gralloc0_unlock(struct gralloc_module_t const *module, buffer_handle_t handle)
206 int32_t fence_fd, ret;
207 auto mod = (struct gralloc0_module *)module;
208 ret = mod->driver->unlock(handle, &fence_fd);
212 ret = cros_gralloc_sync_wait(fence_fd);
219 static int gralloc0_perform(struct gralloc_module_t const *module, int op, ...)
222 int32_t *out_format, ret;
224 buffer_handle_t handle;
225 uint32_t *out_width, *out_height, *out_stride;
226 auto mod = (struct gralloc0_module *)module;
229 case GRALLOC_DRM_GET_STRIDE:
230 case GRALLOC_DRM_GET_FORMAT:
231 case GRALLOC_DRM_GET_DIMENSIONS:
232 case GRALLOC_DRM_GET_BACKING_STORE:
241 handle = va_arg(args, buffer_handle_t);
242 auto hnd = cros_gralloc_convert_handle(handle);
244 cros_gralloc_error("Invalid handle.");
249 case GRALLOC_DRM_GET_STRIDE:
250 out_stride = va_arg(args, uint32_t *);
251 *out_stride = hnd->pixel_stride;
253 case GRALLOC_DRM_GET_FORMAT:
254 out_format = va_arg(args, int32_t *);
255 *out_format = hnd->droid_format;
257 case GRALLOC_DRM_GET_DIMENSIONS:
258 out_width = va_arg(args, uint32_t *);
259 out_height = va_arg(args, uint32_t *);
260 *out_width = hnd->width;
261 *out_height = hnd->height;
263 case GRALLOC_DRM_GET_BACKING_STORE:
264 out_store = va_arg(args, uint64_t *);
265 ret = mod->driver->get_backing_store(handle, out_store);
276 static int gralloc0_lock_ycbcr(struct gralloc_module_t const *module, buffer_handle_t handle,
277 int usage, int l, int t, int w, int h, struct android_ycbcr *ycbcr)
279 return module->lockAsync_ycbcr(module, handle, usage, l, t, w, h, ycbcr, -1);
282 static int gralloc0_lock_async(struct gralloc_module_t const *module, buffer_handle_t handle,
283 int usage, int l, int t, int w, int h, void **vaddr, int fence_fd)
287 uint8_t *addr[DRV_MAX_PLANES];
288 auto mod = (struct gralloc0_module *)module;
290 auto hnd = cros_gralloc_convert_handle(handle);
292 cros_gralloc_error("Invalid handle.");
296 if (hnd->droid_format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
297 cros_gralloc_error("HAL_PIXEL_FORMAT_YCbCr_*_888 format not compatible.");
301 flags = gralloc0_convert_flags(usage);
302 ret = mod->driver->lock(handle, fence_fd, flags, addr);
307 static int gralloc0_unlock_async(struct gralloc_module_t const *module, buffer_handle_t handle,
310 auto mod = (struct gralloc0_module *)module;
311 return mod->driver->unlock(handle, fence_fd);
314 static int gralloc0_lock_async_ycbcr(struct gralloc_module_t const *module, buffer_handle_t handle,
315 int usage, int l, int t, int w, int h,
316 struct android_ycbcr *ycbcr, int fence_fd)
320 uint8_t *addr[DRV_MAX_PLANES] = { nullptr, nullptr, nullptr, nullptr };
321 auto mod = (struct gralloc0_module *)module;
323 auto hnd = cros_gralloc_convert_handle(handle);
325 cros_gralloc_error("Invalid handle.");
329 if ((hnd->droid_format != HAL_PIXEL_FORMAT_YCbCr_420_888) &&
330 (hnd->droid_format != HAL_PIXEL_FORMAT_YV12) &&
331 (hnd->droid_format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)) {
332 cros_gralloc_error("Non-YUV format not compatible.");
336 flags = gralloc0_convert_flags(usage);
337 ret = mod->driver->lock(handle, fence_fd, flags, addr);
341 switch (hnd->format) {
342 case DRM_FORMAT_NV12:
345 ycbcr->cr = addr[1] + 1;
346 ycbcr->ystride = hnd->strides[0];
347 ycbcr->cstride = hnd->strides[1];
348 ycbcr->chroma_step = 2;
350 case DRM_FORMAT_YVU420:
351 case DRM_FORMAT_YVU420_ANDROID:
355 ycbcr->ystride = hnd->strides[0];
356 ycbcr->cstride = hnd->strides[1];
357 ycbcr->chroma_step = 1;
360 module->unlock(module, handle);
367 static struct hw_module_methods_t gralloc0_module_methods = {.open = gralloc0_open };
369 struct gralloc0_module HAL_MODULE_INFO_SYM = {
374 .tag = HARDWARE_MODULE_TAG,
375 .module_api_version = GRALLOC_MODULE_API_VERSION_0_3,
376 .hal_api_version = 0,
377 .id = GRALLOC_HARDWARE_MODULE_ID,
378 .name = "CrOS Gralloc",
379 .author = "Chrome OS",
380 .methods = &gralloc0_module_methods,
383 .registerBuffer = gralloc0_register_buffer,
384 .unregisterBuffer = gralloc0_unregister_buffer,
385 .lock = gralloc0_lock,
386 .unlock = gralloc0_unlock,
387 .perform = gralloc0_perform,
388 .lock_ycbcr = gralloc0_lock_ycbcr,
389 .lockAsync = gralloc0_lock_async,
390 .unlockAsync = gralloc0_unlock_async,
391 .lockAsync_ycbcr = gralloc0_lock_async_ycbcr,
396 .initialized = false,