Release 4.7 include/media/v4l2-tpg.h

Directory: include/media
/*
 * v4l2-tpg.h - Test Pattern Generator
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _V4L2_TPG_H_

#define _V4L2_TPG_H_

#include <linux/types.h>
#include <linux/errno.h>
#include <linux/random.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/videodev2.h>
#include <media/v4l2-tpg-colors.h>


enum tpg_pattern {
	
TPG_PAT_75_COLORBAR,
	
TPG_PAT_100_COLORBAR,
	
TPG_PAT_CSC_COLORBAR,
	
TPG_PAT_100_HCOLORBAR,
	
TPG_PAT_100_COLORSQUARES,
	
TPG_PAT_BLACK,
	
TPG_PAT_WHITE,
	
TPG_PAT_RED,
	
TPG_PAT_GREEN,
	
TPG_PAT_BLUE,
	
TPG_PAT_CHECKERS_16X16,
	
TPG_PAT_CHECKERS_2X2,
	
TPG_PAT_CHECKERS_1X1,
	
TPG_PAT_COLOR_CHECKERS_2X2,
	
TPG_PAT_COLOR_CHECKERS_1X1,
	
TPG_PAT_ALTERNATING_HLINES,
	
TPG_PAT_ALTERNATING_VLINES,
	
TPG_PAT_CROSS_1_PIXEL,
	
TPG_PAT_CROSS_2_PIXELS,
	
TPG_PAT_CROSS_10_PIXELS,
	
TPG_PAT_GRAY_RAMP,

	/* Must be the last pattern */
	
TPG_PAT_NOISE,
};

extern const char * const tpg_pattern_strings[];


enum tpg_quality {
	
TPG_QUAL_COLOR,
	
TPG_QUAL_GRAY,
	
TPG_QUAL_NOISE
};


enum tpg_video_aspect {
	
TPG_VIDEO_ASPECT_IMAGE,
	
TPG_VIDEO_ASPECT_4X3,
	
TPG_VIDEO_ASPECT_14X9_CENTRE,
	
TPG_VIDEO_ASPECT_16X9_CENTRE,
	
TPG_VIDEO_ASPECT_16X9_ANAMORPHIC,
};


enum tpg_pixel_aspect {
	
TPG_PIXEL_ASPECT_SQUARE,
	
TPG_PIXEL_ASPECT_NTSC,
	
TPG_PIXEL_ASPECT_PAL,
};


enum tpg_move_mode {
	
TPG_MOVE_NEG_FAST,
	
TPG_MOVE_NEG,
	
TPG_MOVE_NEG_SLOW,
	
TPG_MOVE_NONE,
	
TPG_MOVE_POS_SLOW,
	
TPG_MOVE_POS,
	
TPG_MOVE_POS_FAST,
};

extern const char * const tpg_aspect_strings[];


#define TPG_MAX_PLANES 3

#define TPG_MAX_PAT_LINES 8


struct tpg_data {
	/* Source frame size */
	

unsigned			src_width, src_height;
	/* Buffer height */
	
unsigned			buf_height;
	/* Scaled output frame size */
	
unsigned			scaled_width;
	
u32				field;
	
bool				field_alternate;
	/* crop coordinates are frame-based */
	
struct v4l2_rect		crop;
	/* compose coordinates are format-based */
	
struct v4l2_rect		compose;
	/* border and square coordinates are frame-based */
	
struct v4l2_rect		border;
	
struct v4l2_rect		square;

	/* Color-related fields */
	
enum tpg_quality		qual;
	
unsigned			qual_offset;
	
u8				alpha_component;
	
bool				alpha_red_only;
	
u8				brightness;
	
u8				contrast;
	
u8				saturation;
	
s16				hue;
	
u32				fourcc;
	
bool				is_yuv;
	
u32				colorspace;
	
u32				xfer_func;
	
u32				ycbcr_enc;
	/*
         * Stores the actual transfer function, i.e. will never be
         * V4L2_XFER_FUNC_DEFAULT.
         */
	
u32				real_xfer_func;
	/*
         * Stores the actual Y'CbCr encoding, i.e. will never be
         * V4L2_YCBCR_ENC_DEFAULT.
         */
	
u32				real_ycbcr_enc;
	
u32				quantization;
	/*
         * Stores the actual quantization, i.e. will never be
         * V4L2_QUANTIZATION_DEFAULT.
         */
	
u32				real_quantization;
	
enum tpg_video_aspect		vid_aspect;
	
enum tpg_pixel_aspect		pix_aspect;
	
unsigned			rgb_range;
	
unsigned			real_rgb_range;
	
unsigned			buffers;
	
unsigned			planes;
	
bool				interleaved;
	
u8				vdownsampling[TPG_MAX_PLANES];
	
u8				hdownsampling[TPG_MAX_PLANES];
	/*
         * horizontal positions must be ANDed with this value to enforce
         * correct boundaries for packed YUYV values.
         */
	
unsigned			hmask[TPG_MAX_PLANES];
	/* Used to store the colors in native format, either RGB or YUV */
	
u8				colors[TPG_COLOR_MAX][3];
	

u8				textfg[TPG_MAX_PLANES][8], textbg[TPG_MAX_PLANES][8];
	/* size in bytes for two pixels in each plane */
	
unsigned			twopixelsize[TPG_MAX_PLANES];
	
unsigned			bytesperline[TPG_MAX_PLANES];

	/* Configuration */
	
enum tpg_pattern		pattern;
	
bool				hflip;
	
bool				vflip;
	
unsigned			perc_fill;
	
bool				perc_fill_blank;
	
bool				show_border;
	
bool				show_square;
	
bool				insert_sav;
	
bool				insert_eav;

	/* Test pattern movement */
	
enum tpg_move_mode		mv_hor_mode;
	
int				mv_hor_count;
	
int				mv_hor_step;
	
enum tpg_move_mode		mv_vert_mode;
	
int				mv_vert_count;
	
int				mv_vert_step;

	
bool				recalc_colors;
	
bool				recalc_lines;
	
bool				recalc_square_border;

	/* Used to store TPG_MAX_PAT_LINES lines, each with up to two planes */
	
unsigned			max_line_width;
	
u8				*lines[TPG_MAX_PAT_LINES][TPG_MAX_PLANES];
	
u8				*downsampled_lines[TPG_MAX_PAT_LINES][TPG_MAX_PLANES];
	
u8				*random_line[TPG_MAX_PLANES];
	
u8				*contrast_line[TPG_MAX_PLANES];
	
u8				*black_line[TPG_MAX_PLANES];
};

void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h);
int tpg_alloc(struct tpg_data *tpg, unsigned max_w);
void tpg_free(struct tpg_data *tpg);
void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
		       u32 field);
void tpg_log_status(struct tpg_data *tpg);

void tpg_set_font(const u8 *f);
void tpg_gen_text(const struct tpg_data *tpg,
		u8 *basep[TPG_MAX_PLANES][2], int y, int x, char *text);
void tpg_calc_text_basep(struct tpg_data *tpg,
		u8 *basep[TPG_MAX_PLANES][2], unsigned p, u8 *vbuf);
unsigned tpg_g_interleaved_plane(const struct tpg_data *tpg, unsigned buf_line);
void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std,
			   unsigned p, u8 *vbuf);
void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std,
		    unsigned p, u8 *vbuf);
bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc);
void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
		const struct v4l2_rect *compose);



static inline void tpg_s_pattern(struct tpg_data *tpg, enum tpg_pattern pattern)
{
	if (tpg->pattern == pattern)
		return;
	tpg->pattern = pattern;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_quality(struct tpg_data *tpg,
				    enum tpg_quality qual, unsigned qual_offset)
{
	if (tpg->qual == qual && tpg->qual_offset == qual_offset)
		return;
	tpg->qual = qual;
	tpg->qual_offset = qual_offset;
	tpg->recalc_colors = true;
}

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static inline enum tpg_quality tpg_g_quality(const struct tpg_data *tpg)
{
	return tpg->qual;
}

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static inline void tpg_s_alpha_component(struct tpg_data *tpg,
					    u8 alpha_component)
{
	if (tpg->alpha_component == alpha_component)
		return;
	tpg->alpha_component = alpha_component;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_alpha_mode(struct tpg_data *tpg,
					    bool red_only)
{
	if (tpg->alpha_red_only == red_only)
		return;
	tpg->alpha_red_only = red_only;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_brightness(struct tpg_data *tpg,
					u8 brightness)
{
	if (tpg->brightness == brightness)
		return;
	tpg->brightness = brightness;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_contrast(struct tpg_data *tpg,
					u8 contrast)
{
	if (tpg->contrast == contrast)
		return;
	tpg->contrast = contrast;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_saturation(struct tpg_data *tpg,
					u8 saturation)
{
	if (tpg->saturation == saturation)
		return;
	tpg->saturation = saturation;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_hue(struct tpg_data *tpg,
					s16 hue)
{
	if (tpg->hue == hue)
		return;
	tpg->hue = hue;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_rgb_range(struct tpg_data *tpg,
					unsigned rgb_range)
{
	if (tpg->rgb_range == rgb_range)
		return;
	tpg->rgb_range = rgb_range;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_real_rgb_range(struct tpg_data *tpg,
					unsigned rgb_range)
{
	if (tpg->real_rgb_range == rgb_range)
		return;
	tpg->real_rgb_range = rgb_range;
	tpg->recalc_colors = true;
}

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static inline void tpg_s_colorspace(struct tpg_data *tpg, u32 colorspace)
{
	if (tpg->colorspace == colorspace)
		return;
	tpg->colorspace = colorspace;
	tpg->recalc_colors = true;
}

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static inline u32 tpg_g_colorspace(const struct tpg_data *tpg)
{
	return tpg->colorspace;
}

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static inline void tpg_s_ycbcr_enc(struct tpg_data *tpg, u32 ycbcr_enc)
{
	if (tpg->ycbcr_enc == ycbcr_enc)
		return;
	tpg->ycbcr_enc = ycbcr_enc;
	tpg->recalc_colors = true;
}

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static inline u32 tpg_g_ycbcr_enc(const struct tpg_data *tpg)
{
	return tpg->ycbcr_enc;
}

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static inline void tpg_s_xfer_func(struct tpg_data *tpg, u32 xfer_func)
{
	if (tpg->xfer_func == xfer_func)
		return;
	tpg->xfer_func = xfer_func;
	tpg->recalc_colors = true;
}

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static inline u32 tpg_g_xfer_func(const struct tpg_data *tpg)
{
	return tpg->xfer_func;
}

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static inline void tpg_s_quantization(struct tpg_data *tpg, u32 quantization)
{
	if (tpg->quantization == quantization)
		return;
	tpg->quantization = quantization;
	tpg->recalc_colors = true;
}

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static inline u32 tpg_g_quantization(const struct tpg_data *tpg)
{
	return tpg->quantization;
}

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static inline unsigned tpg_g_buffers(const struct tpg_data *tpg)
{
	return tpg->buffers;
}

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static inline unsigned tpg_g_planes(const struct tpg_data *tpg)
{
	return tpg->interleaved ? 1 : tpg->planes;
}

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static inline bool tpg_g_interleaved(const struct tpg_data *tpg)
{
	return tpg->interleaved;
}

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static inline unsigned tpg_g_twopixelsize(const struct tpg_data *tpg, unsigned plane)
{
	return tpg->twopixelsize[plane];
}

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static inline unsigned tpg_hdiv(const struct tpg_data *tpg,
				  unsigned plane, unsigned x)
{
	return ((x / tpg->hdownsampling[plane]) & tpg->hmask[plane]) *
		tpg->twopixelsize[plane] / 2;
}

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static inline unsigned tpg_hscale(const struct tpg_data *tpg, unsigned x)
{
	return (x * tpg->scaled_width) / tpg->src_width;
}

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static inline unsigned tpg_hscale_div(const struct tpg_data *tpg,
				      unsigned plane, unsigned x)
{
	return tpg_hdiv(tpg, plane, tpg_hscale(tpg, x));
}

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static inline unsigned tpg_g_bytesperline(const struct tpg_data *tpg, unsigned plane)
{
	return tpg->bytesperline[plane];
}

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static inline void tpg_s_bytesperline(struct tpg_data *tpg, unsigned plane, unsigned bpl)
{
	unsigned p;

	if (tpg->buffers > 1) {
		tpg->bytesperline[plane] = bpl;
		return;
	}

	for (p = 0; p < tpg_g_planes(tpg); p++) {
		unsigned plane_w = bpl * tpg->twopixelsize[p] / tpg->twopixelsize[0];

		tpg->bytesperline[p] = plane_w / tpg->hdownsampling[p];
	}
	if (tpg_g_interleaved(tpg))
		tpg->bytesperline[1] = tpg->bytesperline[0];
}


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static inline unsigned tpg_g_line_width(const struct tpg_data *tpg, unsigned plane)
{
	unsigned w = 0;
	unsigned p;

	if (tpg->buffers > 1)
		return tpg_g_bytesperline(tpg, plane);
	for (p = 0; p < tpg_g_planes(tpg); p++) {
		unsigned plane_w = tpg_g_bytesperline(tpg, p);

		w += plane_w / tpg->vdownsampling[p];
	}
	return w;
}

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static inline unsigned tpg_calc_line_width(const struct tpg_data *tpg,
					   unsigned plane, unsigned bpl)
{
	unsigned w = 0;
	unsigned p;

	if (tpg->buffers > 1)
		return bpl;
	for (p = 0; p < tpg_g_planes(tpg); p++) {
		unsigned plane_w = bpl * tpg->twopixelsize[p] / tpg->twopixelsize[0];

		plane_w /= tpg->hdownsampling[p];
		w += plane_w / tpg->vdownsampling[p];
	}
	return w;
}

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static inline unsigned tpg_calc_plane_size(const struct tpg_data *tpg, unsigned plane)
{
	if (plane >= tpg_g_planes(tpg))
		return 0;

	return tpg_g_bytesperline(tpg, plane) * tpg->buf_height /
	       tpg->vdownsampling[plane];
}

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static inline void tpg_s_buf_height(struct tpg_data *tpg, unsigned h)
{
	tpg->buf_height = h;
}

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static inline void tpg_s_field(struct tpg_data *tpg, unsigned field, bool alternate)
{
	tpg->field = field;
	tpg->field_alternate = alternate;
}

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static inline void tpg_s_perc_fill(struct tpg_data *tpg,
				      unsigned perc_fill)
{
	tpg->perc_fill = perc_fill;
}

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static inline unsigned tpg_g_perc_fill(const struct tpg_data *tpg)
{
	return tpg->perc_fill;
}

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static inline void tpg_s_perc_fill_blank(struct tpg_data *tpg,
					 bool perc_fill_blank)
{
	tpg->perc_fill_blank = perc_fill_blank;
}

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static inline void tpg_s_video_aspect(struct tpg_data *tpg,
					enum tpg_video_aspect vid_aspect)
{
	if (tpg->vid_aspect == vid_aspect)
		return;
	tpg->vid_aspect = vid_aspect;
	tpg->recalc_square_border = true;
}

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static inline enum tpg_video_aspect tpg_g_video_aspect(const struct tpg_data *tpg)
{
	return tpg->vid_aspect;
}

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static inline void tpg_s_pixel_aspect(struct tpg_data *tpg,
					enum tpg_pixel_aspect pix_aspect)
{
	if (tpg->pix_aspect == pix_aspect)
		return;
	tpg->pix_aspect = pix_aspect;
	tpg->recalc_square_border = true;
}

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static inline void tpg_s_show_border(struct tpg_data *tpg,
					bool show_border)
{
	tpg->show_border = show_border;
}

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static inline void tpg_s_show_square(struct tpg_data *tpg,
					bool show_square)
{
	tpg->show_square = show_square;
}

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static inline void tpg_s_insert_sav(struct tpg_data *tpg, bool insert_sav)
{
	tpg->insert_sav = insert_sav;
}

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static inline void tpg_s_insert_eav(struct tpg_data *tpg, bool insert_eav)
{
	tpg->insert_eav = insert_eav;
}

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void tpg_update_mv_step(struct tpg_data *tpg);



static inline void tpg_s_mv_hor_mode(struct tpg_data *tpg,
				enum tpg_move_mode mv_hor_mode)
{
	tpg->mv_hor_mode = mv_hor_mode;
	tpg_update_mv_step(tpg);
}

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static inline void tpg_s_mv_vert_mode(struct tpg_data *tpg,
				enum tpg_move_mode mv_vert_mode)
{
	tpg->mv_vert_mode = mv_vert_mode;
	tpg_update_mv_step(tpg);
}

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hans verkuil hans verkuil 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



static inline void tpg_init_mv_count(struct tpg_data *tpg)
{
	tpg->mv_hor_count = tpg->mv_vert_count = 0;
}

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Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 22 100.00% 1 100.00%
Total 22 100.00% 1 100.00%



static inline void tpg_update_mv_count(struct tpg_data *tpg, bool frame_is_field)
{
	tpg->mv_hor_count += tpg->mv_hor_step * (frame_is_field ? 1 : 2);
	tpg->mv_vert_count += tpg->mv_vert_step * (frame_is_field ? 1 : 2);
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%



static inline void tpg_s_hflip(struct tpg_data *tpg, bool hflip)
{
	if (tpg->hflip == hflip)
		return;
	tpg->hflip = hflip;
	tpg_update_mv_step(tpg);
	tpg->recalc_lines = true;
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 41 100.00% 1 100.00%
Total 41 100.00% 1 100.00%



static inline bool tpg_g_hflip(const struct tpg_data *tpg)
{
	return tpg->hflip;
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 18 100.00% 1 100.00%
Total 18 100.00% 1 100.00%



static inline void tpg_s_vflip(struct tpg_data *tpg, bool vflip)
{
	tpg->vflip = vflip;
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



static inline bool tpg_g_vflip(const struct tpg_data *tpg)
{
	return tpg->vflip;
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 18 100.00% 1 100.00%
Total 18 100.00% 1 100.00%



static inline bool tpg_pattern_is_static(const struct tpg_data *tpg)
{
	return tpg->pattern != TPG_PAT_NOISE &&
	       tpg->mv_hor_mode == TPG_MOVE_NONE &&
	       tpg->mv_vert_mode == TPG_MOVE_NONE;
}

Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 32 100.00% 1 100.00%
Total 32 100.00% 1 100.00%

#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
hans verkuil hans verkuil 2373 99.83% 15 93.75%
helen mae koike fornazier helen mae koike fornazier 4 0.17% 1 6.25%
Total 2377 100.00% 16 100.00%
  Directory: include/media

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
hans verkuil	hans verkuil	37	100.00%	1	100.00%
	Total	37	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 include/media/v4l2-tpg.h

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