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path: root/test/v4l2_device/v4l2_device_test.cpp
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2019-02-13test: v4l2_device: release capture device resourcesKieran Bingham
Ensure that the cleanup operation releases the device and resources. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-13test: v4l2_device: Rename dev_ to capture_Kieran Bingham
Change the variable name globally throughout the tests. Repair the V4L2DeviceTest constructor style, as checkstyle complained. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-13test: v4l2_device: Use VIVID capture streamKieran Bingham
Utilise the VIVID capture device for testing the V4L2Device objects. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-06test: v4l2_device: Use DeviceEnumerator to find a UVCVideoKieran Bingham
Utilise the existing DeviceEnumerator system to identify a suitable V4L2Device for testing. Specifically target these tests at a uvcvideo driver based device as a known supported target. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-01-17test: v4l2_device: Add test suite and initial testKieran Bingham
Provide a base class to construct a v4l2_device object for further tests and an initial test which validates the FD handle can not be leaked. Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * format_convert.cpp - qcam - Convert buffer to RGB
 */

#include "format_converter.h"

#include <errno.h>
#include <utility>

#include <QImage>

#include <libcamera/formats.h>

#include "../cam/image.h"

#define RGBSHIFT		8
#ifndef MAX
#define MAX(a,b)		((a)>(b)?(a):(b))
#endif
#ifndef MIN
#define MIN(a,b)		((a)<(b)?(a):(b))
#endif
#ifndef CLAMP
#define CLAMP(a,low,high)	MAX((low),MIN((high),(a)))
#endif
#ifndef CLIP
#define CLIP(x)			CLAMP(x,0,255)
#endif

int FormatConverter::configure(const libcamera::PixelFormat &format,
			       const QSize &size, unsigned int stride)
{
	switch (format) {
	case libcamera::formats::NV12:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 2;
		nvSwap_ = false;
		break;
	case libcamera::formats::NV21:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 2;
		nvSwap_ = true;
		break;
	case libcamera::formats::NV16:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 1;
		nvSwap_ = false;
		break;
	case libcamera::formats::NV61:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 1;
		nvSwap_ = true;
		break;
	case libcamera::formats::NV24:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 1;
		vertSubSample_ = 1;
		nvSwap_ = false;
		break;
	case libcamera::formats::NV42:
		formatFamily_ = YUVSemiPlanar;
		horzSubSample_ = 1;
		vertSubSample_ = 1;
		nvSwap_ = true;
		break;

	case libcamera::formats::R8:
		formatFamily_ = RGB;
		r_pos_ = 0;
		g_pos_ = 0;
		b_pos_ = 0;
		bpp_ = 1;
		break;
	case libcamera::formats::RGB888:
		formatFamily_ = RGB;
		r_pos_ = 2;
		g_pos_ = 1;
		b_pos_ = 0;
		bpp_ = 3;
		break;
	case libcamera::formats::BGR888:
		formatFamily_ = RGB;
		r_pos_ = 0;
		g_pos_ = 1;
		b_pos_ = 2;
		bpp_ = 3;
		break;
	case libcamera::formats::ARGB8888:
		formatFamily_ = RGB;
		r_pos_ = 2;
		g_pos_ = 1;
		b_pos_ = 0;
		bpp_ = 4;
		break;
	case libcamera::formats::RGBA8888:
		formatFamily_ = RGB;
		r_pos_ = 3;
		g_pos_ = 2;
		b_pos_ = 1;
		bpp_ = 4;
		break;
	case libcamera::formats::ABGR8888:
		formatFamily_ = RGB;
		r_pos_ = 0;
		g_pos_ = 1;
		b_pos_ = 2;
		bpp_ = 4;
		break;
	case libcamera::formats::BGRA8888:
		formatFamily_ = RGB;
		r_pos_ = 1;
		g_pos_ = 2;
		b_pos_ = 3;
		bpp_ = 4;
		break;

	case libcamera::formats::VYUY:
		formatFamily_ = YUVPacked;
		y_pos_ = 1;
		cb_pos_ = 2;
		break;
	case libcamera::formats::YVYU:
		formatFamily_ = YUVPacked;
		y_pos_ = 0;
		cb_pos_ = 3;
		break;
	case libcamera::formats::UYVY:
		formatFamily_ = YUVPacked;
		y_pos_ = 1;
		cb_pos_ = 0;
		break;
	case libcamera::formats::YUYV:
		formatFamily_ = YUVPacked;
		y_pos_ = 0;
		cb_pos_ = 1;
		break;

	case libcamera::formats::YUV420:
		formatFamily_ = YUVPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 2;
		nvSwap_ = false;
		break;
	case libcamera::formats::YVU420:
		formatFamily_ = YUVPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 2;
		nvSwap_ = true;
		break;
	case libcamera::formats::YUV422:
		formatFamily_ = YUVPlanar;
		horzSubSample_ = 2;
		vertSubSample_ = 1;
		nvSwap_ = false;
		break;

	case libcamera::formats::MJPEG:
		formatFamily_ = MJPEG;
		break;

	default:
		return -EINVAL;
	};

	format_ = format;
	width_ = size.width();
	height_ = size.height();
	stride_ = stride;

	return 0;
}

void FormatConverter::convert(const Image *src, size_t size, QImage *dst)
{
	switch (formatFamily_) {
	case MJPEG:
		dst->loadFromData(src->data(0).data(), size, "JPEG");
		break;
	case RGB:
		convertRGB(src, dst->bits());
		break;
	case YUVPacked:
		convertYUVPacked(src, dst->bits());
		break;
	case YUVSemiPlanar:
		convertYUVSemiPlanar(src, dst->bits());
		break;
	case YUVPlanar:
		convertYUVPlanar(src, dst->bits());
		break;
	};
}

static void yuv_to_rgb(int y, int u, int v, int *r, int *g, int *b)
{
	int c = y - 16;
	int d = u - 128;
	int e = v - 128;
	*r = CLIP(( 298 * c           + 409 * e + 128) >> RGBSHIFT);
	*g = CLIP(( 298 * c - 100 * d - 208 * e + 128) >> RGBSHIFT);
	*b = CLIP(( 298 * c + 516 * d           + 128) >> RGBSHIFT);
}

void FormatConverter::convertRGB(const Image *srcImage, unsigned char *dst)
{
	const unsigned char *src = srcImage->data(0).data();
	unsigned int x, y;
	int r, g, b;

	for (y = 0; y < height_; y++) {
		for (x = 0; x < width_; x++) {
			r = src[bpp_ * x + r_pos_];
			g = src[bpp_ * x + g_pos_];
			b = src[bpp_ * x + b_pos_];