| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "fake-buffer-collection.h" |
| |
| #include <fuchsia/sysmem/c/fidl.h> |
| #include <lib/syslog/global.h> |
| #include <lib/zx/vmo.h> |
| #include <src/camera/drivers/isp/modules/dma-format.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| namespace camera { |
| |
| zx_status_t CreateContiguousBufferCollectionInfo( |
| fuchsia_sysmem_BufferCollectionInfo* buffer_collection, |
| zx_handle_t bti_handle, uint32_t width, uint32_t height, |
| uint32_t num_buffers) { |
| // set all the vmo handles to invalid: |
| for (uint32_t i = 0; i < countof(buffer_collection->vmos); ++i) { |
| buffer_collection->vmos[i] = ZX_HANDLE_INVALID; |
| } |
| buffer_collection->format.image = { |
| .width = width, |
| .height = height, |
| .layers = 2u, |
| .pixel_format = |
| { |
| .type = fuchsia_sysmem_PixelFormatType_NV12, |
| .has_format_modifier = false, |
| .format_modifier = {.value = 0}, |
| }, |
| .color_space = |
| { |
| .type = fuchsia_sysmem_ColorSpaceType_SRGB, |
| }, |
| // The planes data is not used currently: |
| .planes = {{0, 0}, {0, 0}, {0, 0}, {0, 0}}}; |
| buffer_collection->buffer_count = num_buffers; |
| // Get the image size for the vmo: |
| DmaFormat full_res_format(buffer_collection->format.image); |
| buffer_collection->vmo_size = full_res_format.GetImageSize(); |
| zx_status_t status; |
| for (uint32_t i = 0; i < buffer_collection->buffer_count; ++i) { |
| status = zx_vmo_create_contiguous(bti_handle, buffer_collection->vmo_size, |
| 0, &buffer_collection->vmos[i]); |
| if (status != ZX_OK) { |
| FX_LOG(ERROR, "", "Failed to allocate Buffer Collection"); |
| return status; |
| } |
| } |
| return ZX_OK; |
| } |
| } // namespace camera |
