| // Copyright 2018 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 <fbl/algorithm.h> |
| #include <lib/fdio/unsafe.h> |
| #include <lib/fdio/fd.h> |
| #include <lib/fdio/fdio.h> |
| #include <lib/fdio/directory.h> |
| #include <lib/zx/channel.h> |
| #include <lib/zx/event.h> |
| #include <lib/zx/vmar.h> |
| #include <lib/zx/vmo.h> |
| #include <limits> |
| #include <stdio.h> |
| #include <string.h> |
| #include <zircon/device/display-controller.h> |
| #include <zircon/process.h> |
| #include <zircon/syscalls.h> |
| |
| #include "fuchsia/hardware/display/c/fidl.h" |
| #include "fuchsia/sysmem/c/fidl.h" |
| #include "image.h" |
| #include "utils.h" |
| |
| static constexpr uint32_t kRenderPeriod = 120; |
| |
| Image::Image(uint32_t width, uint32_t height, int32_t stride, |
| zx_pixel_format_t format, zx_handle_t vmo, void* buf, |
| uint32_t fg_color, uint32_t bg_color, bool use_intel_y_tiling) |
| : width_(width), height_(height), stride_(stride), format_(format), |
| vmo_(vmo), buf_(buf), fg_color_(fg_color), bg_color_(bg_color), |
| use_intel_y_tiling_(use_intel_y_tiling) {} |
| |
| Image* Image::Create(zx_handle_t dc_handle, |
| uint32_t width, uint32_t height, zx_pixel_format_t format, |
| uint32_t fg_color, uint32_t bg_color, bool use_intel_y_tiling) { |
| zx::channel allocator2_client; |
| zx::channel allocator2_server; |
| zx_status_t status; |
| status = zx::channel::create(0, &allocator2_client, &allocator2_server); |
| if (status != ZX_OK) { |
| return nullptr; |
| } |
| status = fdio_service_connect("/svc/fuchsia.sysmem.Allocator", allocator2_server.release()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to connect to sysmem\n"); |
| return nullptr; |
| } |
| |
| zx::channel token_client_1; |
| zx::channel token_server_1; |
| status = zx::channel::create(0, &token_client_1, &token_server_1); |
| |
| if (status != ZX_OK) { |
| return nullptr; |
| } |
| status = fuchsia_sysmem_AllocatorAllocateSharedCollection( |
| allocator2_client.get(), token_server_1.release()); |
| |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to allocate shared collection\n"); |
| return nullptr; |
| } |
| zx::channel token_client_2; |
| zx::channel token_server_2; |
| status = zx::channel::create(0, &token_client_2, &token_server_2); |
| |
| if (status != ZX_OK) { |
| return nullptr; |
| } |
| status = fuchsia_sysmem_BufferCollectionTokenDuplicate( |
| token_client_1.get(), std::numeric_limits<uint32_t>::max(), token_server_2.release()); |
| |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to duplicate token\n"); |
| return nullptr; |
| } |
| |
| status = fuchsia_sysmem_BufferCollectionTokenSync(token_client_1.get()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to sync token\n"); |
| return nullptr; |
| } |
| fuchsia_hardware_display_ControllerImportBufferCollectionRequest import_msg = {}; |
| import_msg.hdr.ordinal = |
| fuchsia_hardware_display_ControllerImportBufferCollectionOrdinal; |
| import_msg.collection_id = 0; |
| import_msg.collection_token = FIDL_HANDLE_PRESENT; |
| |
| fuchsia_hardware_display_ControllerImportBufferCollectionResponse import_rsp = {}; |
| |
| zx_handle_t handle = token_client_2.release(); |
| zx_channel_call_args_t import_call = {}; |
| import_call.wr_bytes = &import_msg; |
| import_call.rd_bytes = &import_rsp; |
| import_call.wr_num_bytes = sizeof(import_msg); |
| import_call.rd_num_bytes = sizeof(import_rsp); |
| import_call.wr_num_handles = 1; |
| import_call.wr_handles = &handle; |
| uint32_t actual_bytes, actual_handles; |
| status = zx_channel_call(dc_handle, |
| 0, ZX_TIME_INFINITE, &import_call, &actual_bytes, &actual_handles); |
| if (status != ZX_OK || import_rsp.res != ZX_OK) { |
| fprintf(stderr, "Failed to import buffer collection\n"); |
| return nullptr; |
| } |
| |
| fuchsia_hardware_display_ControllerSetBufferCollectionConstraintsRequest constraints_msg = {}; |
| constraints_msg.hdr.ordinal = |
| fuchsia_hardware_display_ControllerSetBufferCollectionConstraintsOrdinal; |
| constraints_msg.config.pixel_format = format; |
| constraints_msg.config.height = height; |
| constraints_msg.config.width = width; |
| if (use_intel_y_tiling) { |
| constraints_msg.config.type = 2; // IMAGE_TYPE_Y_LEGACY |
| } else { |
| constraints_msg.config.type = IMAGE_TYPE_SIMPLE; |
| } |
| // Planes aren't initialized because they're determined once sysmem has |
| // allocated the image. |
| constraints_msg.collection_id = 0; |
| |
| fuchsia_hardware_display_ControllerSetBufferCollectionConstraintsResponse constraints_rsp = {}; |
| zx_channel_call_args_t constraints_call = {}; |
| constraints_call.wr_bytes = &constraints_msg; |
| constraints_call.rd_bytes = &constraints_rsp; |
| constraints_call.wr_num_bytes = sizeof(constraints_msg); |
| constraints_call.rd_num_bytes = sizeof(constraints_rsp); |
| status = zx_channel_call(dc_handle, |
| 0, ZX_TIME_INFINITE, &constraints_call, &actual_bytes, &actual_handles); |
| if (status != ZX_OK || constraints_rsp.res != ZX_OK) { |
| fprintf(stderr, "Failed to set constraints\n"); |
| return nullptr; |
| } |
| |
| zx::channel collection_client; |
| zx::channel collection_server; |
| status = zx::channel::create(0, &collection_client, &collection_server); |
| |
| status = fuchsia_sysmem_AllocatorBindSharedCollection( |
| allocator2_client.get(), token_client_1.release(), collection_server.release()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to bind shared collection\n"); |
| return nullptr; |
| } |
| |
| fuchsia_sysmem_BufferCollectionConstraints constraints = {}; |
| constraints.usage.cpu = fuchsia_sysmem_cpuUsageReadOften | fuchsia_sysmem_cpuUsageWriteOften; |
| constraints.min_buffer_count_for_camping = 1; |
| constraints.has_buffer_memory_constraints = false; |
| constraints.image_format_constraints_count = 1; |
| fuchsia_sysmem_ImageFormatConstraints& image_constraints = |
| constraints.image_format_constraints[0]; |
| if (format == ZX_PIXEL_FORMAT_ARGB_8888 || format == ZX_PIXEL_FORMAT_RGB_x888) { |
| image_constraints.pixel_format.type = fuchsia_sysmem_PixelFormatType_BGRA32; |
| image_constraints.color_spaces_count = 1; |
| image_constraints.color_space[0] = fuchsia_sysmem_ColorSpace{ |
| .type = fuchsia_sysmem_ColorSpaceType_SRGB, |
| }; |
| } else { |
| image_constraints.pixel_format.type = fuchsia_sysmem_PixelFormatType_NV12; |
| image_constraints.color_spaces_count = 1; |
| image_constraints.color_space[0] = fuchsia_sysmem_ColorSpace{ |
| .type = fuchsia_sysmem_ColorSpaceType_REC709, |
| }; |
| } |
| if (use_intel_y_tiling) { |
| image_constraints.pixel_format.has_format_modifier = true; |
| image_constraints.pixel_format.format_modifier.value = |
| fuchsia_sysmem_FORMAT_MODIFIER_INTEL_I915_Y_TILED; |
| } |
| image_constraints.min_coded_width = width; |
| image_constraints.max_coded_width = width; |
| image_constraints.min_coded_height = height; |
| image_constraints.max_coded_height = height; |
| image_constraints.min_bytes_per_row = 0; |
| image_constraints.max_bytes_per_row = std::numeric_limits<uint32_t>::max(); |
| image_constraints.max_coded_width_times_coded_height = std::numeric_limits<uint32_t>::max(); |
| image_constraints.layers = 1; |
| image_constraints.coded_width_divisor = 1; |
| image_constraints.coded_height_divisor = 1; |
| image_constraints.bytes_per_row_divisor = 1; |
| image_constraints.start_offset_divisor = 1; |
| image_constraints.display_width_divisor = 1; |
| image_constraints.display_height_divisor = 1; |
| |
| status = fuchsia_sysmem_BufferCollectionSetConstraints( |
| collection_client.get(), true, &constraints); |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to set local constraints\n"); |
| return nullptr; |
| } |
| |
| zx_status_t allocation_status; |
| fuchsia_sysmem_BufferCollectionInfo_2 buffer_collection_info{}; |
| status = fuchsia_sysmem_BufferCollectionWaitForBuffersAllocated( |
| collection_client.get(), &allocation_status, &buffer_collection_info); |
| |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to wait for buffers allocated\n"); |
| return nullptr; |
| } |
| |
| status = fuchsia_sysmem_BufferCollectionClose(collection_client.get()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "Failed to close buffer collection\n"); |
| return nullptr; |
| } |
| |
| fuchsia_hardware_display_ControllerReleaseBufferCollectionRequest close_msg = {}; |
| close_msg.hdr.ordinal = |
| fuchsia_hardware_display_ControllerReleaseBufferCollectionOrdinal; |
| close_msg.collection_id = 0; |
| |
| zx_channel_write(dc_handle, 0, &close_msg, sizeof(close_msg), nullptr, 0); |
| |
| uint32_t buffer_size = buffer_collection_info.settings.buffer_settings.size_bytes; |
| zx::vmo vmo(buffer_collection_info.buffers[0].vmo); |
| uint32_t stride_pixels = |
| buffer_collection_info.settings.image_format_constraints.min_bytes_per_row / ZX_PIXEL_FORMAT_BYTES(format); |
| |
| uintptr_t addr; |
| uint32_t perms = ZX_VM_PERM_READ | ZX_VM_PERM_WRITE; |
| if (zx::vmar::root_self()->map(0, vmo, 0, buffer_size, perms, &addr) != ZX_OK) { |
| printf("Failed to map vmar\n"); |
| return nullptr; |
| } |
| |
| // We don't expect stride to be much more than width, or expect the buffer |
| // to be much more than stride * height, so just fill the whole buffer with |
| // bg_color. |
| uint32_t* ptr = reinterpret_cast<uint32_t*>(addr); |
| for (unsigned i = 0; i < buffer_size / sizeof(uint32_t); i++) { |
| ptr[i] = bg_color; |
| } |
| zx_cache_flush(ptr, buffer_size, ZX_CACHE_FLUSH_DATA); |
| |
| return new Image(width, height, stride_pixels, format, |
| vmo.release(), ptr, fg_color, bg_color, |
| use_intel_y_tiling); |
| } |
| |
| #define STRIPE_SIZE 37 // prime to make movement more interesting |
| |
| void Image::Render(int32_t prev_step, int32_t step_num) { |
| if (format_ == ZX_PIXEL_FORMAT_NV12) { |
| uint32_t byte_stride = stride_ * ZX_PIXEL_FORMAT_BYTES(format_); |
| uint32_t real_height = height_; |
| for (uint32_t y = 0; y < real_height; y++) { |
| uint8_t* buf = static_cast<uint8_t*>(buf_) + y * stride_; |
| memset(buf, 128, stride_); |
| } |
| |
| for (uint32_t y = 0; y < real_height / 2; y++) { |
| for (uint32_t x = 0; x < width_ / 2; x++) { |
| uint8_t* buf = |
| static_cast<uint8_t*>(buf_) + real_height * stride_ + y * stride_ + x * 2; |
| int32_t in_stripe = (((x * 2) / STRIPE_SIZE % 2) != ((y * 2) / STRIPE_SIZE % 2)); |
| if (in_stripe) { |
| buf[0] = 16; |
| buf[1] = 256 - 16; |
| } else { |
| buf[0] = 256 - 16; |
| buf[1] = 16; |
| } |
| } |
| } |
| zx_cache_flush(reinterpret_cast<uint8_t*>(buf_), byte_stride * height_ * 3 / 2, |
| ZX_CACHE_FLUSH_DATA); |
| } else { |
| uint32_t start, end; |
| bool draw_stripe; |
| if (step_num < 0) { |
| start = 0; |
| end = height_; |
| draw_stripe = true; |
| } else { |
| uint32_t prev = interpolate(height_, prev_step, kRenderPeriod); |
| uint32_t cur = interpolate(height_, step_num, kRenderPeriod); |
| start = fbl::min(cur, prev); |
| end = fbl::max(cur, prev); |
| draw_stripe = cur > prev; |
| } |
| |
| for (unsigned y = start; y < end; y++) { |
| for (unsigned x = 0; x < width_; x++) { |
| int32_t in_stripe = draw_stripe && ((x / STRIPE_SIZE % 2) != (y / STRIPE_SIZE % 2)); |
| int32_t color = in_stripe ? fg_color_ : bg_color_; |
| |
| uint32_t* ptr = static_cast<uint32_t*>(buf_); |
| if (!use_intel_y_tiling_) { |
| ptr += (y * stride_) + x; |
| } else { |
| // Add the offset to the pixel's tile |
| uint32_t width_in_tiles = (width_ + TILE_PIXEL_WIDTH - 1) / TILE_PIXEL_WIDTH; |
| uint32_t tile_idx = |
| (y / TILE_PIXEL_HEIGHT) * width_in_tiles + (x / TILE_PIXEL_WIDTH); |
| ptr += (TILE_NUM_PIXELS * tile_idx); |
| // Add the offset within the pixel's tile |
| uint32_t subtile_column_offset = |
| ((x % TILE_PIXEL_WIDTH) / SUBTILE_COLUMN_WIDTH) * TILE_PIXEL_HEIGHT; |
| uint32_t subtile_line_offset = |
| (subtile_column_offset + (y % TILE_PIXEL_HEIGHT)) * SUBTILE_COLUMN_WIDTH; |
| ptr += subtile_line_offset + (x % SUBTILE_COLUMN_WIDTH); |
| } |
| *ptr = color; |
| } |
| } |
| |
| if (!use_intel_y_tiling_) { |
| uint32_t byte_stride = stride_ * ZX_PIXEL_FORMAT_BYTES(format_); |
| zx_cache_flush(reinterpret_cast<uint8_t*>(buf_) + (byte_stride * start), |
| byte_stride * (end - start), ZX_CACHE_FLUSH_DATA); |
| } else { |
| uint8_t* buf = static_cast<uint8_t*>(buf_); |
| uint32_t width_in_tiles = (width_ + TILE_PIXEL_WIDTH - 1) / TILE_PIXEL_WIDTH; |
| uint32_t y_start_tile = start / TILE_PIXEL_HEIGHT; |
| uint32_t y_end_tile = (end + TILE_PIXEL_HEIGHT - 1) / TILE_PIXEL_HEIGHT; |
| for (unsigned i = 0; i < width_in_tiles; i++) { |
| for (unsigned j = y_start_tile; j < y_end_tile; j++) { |
| unsigned offset = (TILE_NUM_BYTES * (j * width_in_tiles + i)); |
| zx_cache_flush(buf + offset, TILE_NUM_BYTES, ZX_CACHE_FLUSH_DATA); |
| } |
| } |
| } |
| } |
| } |
| |
| void Image::GetConfig(fuchsia_hardware_display_ImageConfig* config_out) { |
| config_out->height = height_; |
| config_out->width = width_; |
| config_out->pixel_format = format_; |
| if (!use_intel_y_tiling_) { |
| config_out->type = IMAGE_TYPE_SIMPLE; |
| } else { |
| config_out->type = 2; // IMAGE_TYPE_Y_LEGACY |
| } |
| memset(config_out->planes, 0, sizeof(config_out->planes)); |
| config_out->planes[0].byte_offset = 0; |
| config_out->planes[0].bytes_per_row = stride_ * ZX_PIXEL_FORMAT_BYTES(format_); |
| if (config_out->pixel_format == ZX_PIXEL_FORMAT_NV12) { |
| config_out->planes[1].byte_offset = stride_ * height_; |
| config_out->planes[1].bytes_per_row = stride_ * ZX_PIXEL_FORMAT_BYTES(format_); |
| } |
| } |
| |
| bool Image::Import(zx_handle_t dc_handle, image_import_t* info_out) { |
| for (int i = 0; i < 2; i++) { |
| static int event_id = INVALID_ID + 1; |
| zx_handle_t e1, e2; |
| if (zx_event_create(0, &e1) != ZX_OK |
| || zx_handle_duplicate(e1, ZX_RIGHT_SAME_RIGHTS, &e2) != ZX_OK) { |
| printf("Failed to create event\n"); |
| return false; |
| } |
| |
| fuchsia_hardware_display_ControllerImportEventRequest import_evt_msg; |
| import_evt_msg.hdr.ordinal = fuchsia_hardware_display_ControllerImportEventOrdinal; |
| import_evt_msg.id = event_id++; |
| import_evt_msg.event = FIDL_HANDLE_PRESENT; |
| |
| if (zx_channel_write(dc_handle, 0, &import_evt_msg, |
| sizeof(import_evt_msg), &e2, 1) != ZX_OK) { |
| printf("Failed to send import message\n"); |
| return false; |
| } |
| |
| if (i != WAIT_EVENT) { |
| zx_object_signal(e1, 0, ZX_EVENT_SIGNALED); |
| } |
| |
| info_out->events[i] = e1; |
| info_out->event_ids[i] = import_evt_msg.id; |
| } |
| |
| fuchsia_hardware_display_ControllerImportVmoImageRequest import_msg; |
| import_msg.hdr.ordinal = fuchsia_hardware_display_ControllerImportVmoImageOrdinal; |
| GetConfig(&import_msg.image_config); |
| import_msg.vmo = FIDL_HANDLE_PRESENT; |
| import_msg.offset = 0; |
| zx_handle_t vmo_dup; |
| if (zx_handle_duplicate(vmo_, ZX_RIGHT_SAME_RIGHTS, &vmo_dup) != ZX_OK) { |
| printf("Failed to dup handle\n"); |
| return false; |
| } |
| |
| fuchsia_hardware_display_ControllerImportVmoImageResponse import_rsp; |
| zx_channel_call_args_t import_call = {}; |
| import_call.wr_bytes = &import_msg; |
| import_call.wr_handles = &vmo_dup; |
| import_call.rd_bytes = &import_rsp; |
| import_call.wr_num_bytes = sizeof(import_msg); |
| import_call.wr_num_handles = 1; |
| import_call.rd_num_bytes = sizeof(import_rsp); |
| uint32_t actual_bytes, actual_handles; |
| if (zx_channel_call(dc_handle, 0, ZX_TIME_INFINITE, &import_call, |
| &actual_bytes, &actual_handles) != ZX_OK) { |
| printf("Failed to make import call\n"); |
| return false; |
| } |
| |
| if (import_rsp.res != ZX_OK) { |
| printf("Failed to import vmo\n"); |
| return false; |
| } |
| |
| info_out->id = import_rsp.image_id; |
| |
| return true; |
| } |
