blob: 48528c425a3a45afc083da8a095af30dfeec2182 [file] [log] [blame]
// 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 <lib/zx/vmo.h>
#include <vector>
namespace camera {
// Struct to pass around the results of the BLC algorithm.
struct BlcResult {
uint32_t avg_r, avg_gr, avg_gb, avg_b;
// Comparator logic for blc_result
inline bool operator==(const BlcResult lhs, const BlcResult rhs) {
return lhs.avg_r == rhs.avg_r && lhs.avg_gr == rhs.avg_gr && lhs.avg_gb == rhs.avg_gb &&
lhs.avg_b == rhs.avg_b;
// Args:
// |vmo| Memory object containing the image to run BLC on.
// |width| The width of the image; needed to calculate image size and stride.
// |height| The height of the image; needed to calculate image size.
// |bytes_per_pixel| Integer denoting how many bytes each pixel consists of; needed to calculate
// image stride.
// Returns:
// A struct containing the results of the BLC run on the passed-in image.
BlcResult BlcRaw12(const zx::vmo* vmo, uint32_t width, uint32_t height, uint8_t bytes_per_pixel);
// Helper method to add integers from a tuple to other integers, in their respective order.
// Args:
// |first_val| The target integer to add the first tuple value to.
// |second_val| The target integer to add the second tuple value to.
// |p| The pair containing values to add to the target integers.
void AddValsFromPairToTargetInts(uint32_t* first_val, uint32_t* second_val,
std::pair<uint16_t, uint16_t> p);
} // namespace camera