// SPDX-License-Identifier: GPL-2.0-only /* * v4l2-tpg-core.c - Test Pattern Generator * * Note: gen_twopix and tpg_gen_text are based on code from vivi.c. See the * vivi.c source for the copyright information of those functions. * * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ #include <linux/module.h> #include <media/tpg/v4l2-tpg.h> /* Must remain in sync with enum tpg_pattern */ const char * const tpg_pattern_strings[] = …; EXPORT_SYMBOL_GPL(…); /* Must remain in sync with enum tpg_aspect */ const char * const tpg_aspect_strings[] = …; EXPORT_SYMBOL_GPL(…); /* * Sine table: sin[0] = 127 * sin(-180 degrees) * sin[128] = 127 * sin(0 degrees) * sin[256] = 127 * sin(180 degrees) */ static const s8 sin[257] = …; #define cos(idx) … /* Global font descriptor */ static const u8 *font8x16; void tpg_set_font(const u8 *f) { … } EXPORT_SYMBOL_GPL(…); void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h) { … } EXPORT_SYMBOL_GPL(…); int tpg_alloc(struct tpg_data *tpg, unsigned max_w) { … } EXPORT_SYMBOL_GPL(…); void tpg_free(struct tpg_data *tpg) { … } EXPORT_SYMBOL_GPL(…); bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) { … } EXPORT_SYMBOL_GPL(…); void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop, const struct v4l2_rect *compose) { … } EXPORT_SYMBOL_GPL(…); void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height, u32 field) { … } EXPORT_SYMBOL_GPL(…); static enum tpg_color tpg_get_textbg_color(struct tpg_data *tpg) { … } static enum tpg_color tpg_get_textfg_color(struct tpg_data *tpg) { … } static inline int rec709_to_linear(int v) { … } static inline int linear_to_rec709(int v) { … } static void color_to_hsv(struct tpg_data *tpg, int r, int g, int b, int *h, int *s, int *v) { … } static void rgb2ycbcr(const int m[3][3], int r, int g, int b, int y_offset, int *y, int *cb, int *cr) { … } static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b, int *y, int *cb, int *cr) { … } static void ycbcr2rgb(const int m[3][3], int y, int cb, int cr, int y_offset, int *r, int *g, int *b) { … } static void ycbcr_to_color(struct tpg_data *tpg, int y, int cb, int cr, int *r, int *g, int *b) { … } /* precalculate color bar values to speed up rendering */ static void precalculate_color(struct tpg_data *tpg, int k) { … } static void tpg_precalculate_colors(struct tpg_data *tpg) { … } /* 'odd' is true for pixels 1, 3, 5, etc. and false for pixels 0, 2, 4, etc. */ static void gen_twopix(struct tpg_data *tpg, u8 buf[TPG_MAX_PLANES][8], int color, bool odd) { … } unsigned tpg_g_interleaved_plane(const struct tpg_data *tpg, unsigned buf_line) { … } EXPORT_SYMBOL_GPL(…); /* Return how many pattern lines are used by the current pattern. */ static unsigned tpg_get_pat_lines(const struct tpg_data *tpg) { … } /* Which pattern line should be used for the given frame line. */ static unsigned tpg_get_pat_line(const struct tpg_data *tpg, unsigned line) { … } /* * Which color should be used for the given pattern line and X coordinate. * Note: x is in the range 0 to 2 * tpg->src_width. */ static enum tpg_color tpg_get_color(const struct tpg_data *tpg, unsigned pat_line, unsigned x) { … } /* * Given the pixel aspect ratio and video aspect ratio calculate the * coordinates of a centered square and the coordinates of the border of * the active video area. The coordinates are relative to the source * frame rectangle. */ static void tpg_calculate_square_border(struct tpg_data *tpg) { … } static void tpg_precalculate_line(struct tpg_data *tpg) { … } /* need this to do rgb24 rendering */ x24; #define PRINTSTR(PIXTYPE) … static noinline void tpg_print_str_2(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], unsigned p, unsigned first, unsigned div, unsigned step, int y, int x, const char *text, unsigned len) { … } static noinline void tpg_print_str_4(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], unsigned p, unsigned first, unsigned div, unsigned step, int y, int x, const char *text, unsigned len) { … } static noinline void tpg_print_str_6(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], unsigned p, unsigned first, unsigned div, unsigned step, int y, int x, const char *text, unsigned len) { … } static noinline void tpg_print_str_8(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], unsigned p, unsigned first, unsigned div, unsigned step, int y, int x, const char *text, unsigned len) { … } void tpg_gen_text(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], int y, int x, const char *text) { … } EXPORT_SYMBOL_GPL(…); const char *tpg_g_color_order(const struct tpg_data *tpg) { … } EXPORT_SYMBOL_GPL(…); void tpg_update_mv_step(struct tpg_data *tpg) { … } EXPORT_SYMBOL_GPL(…); /* Map the line number relative to the crop rectangle to a frame line number */ static unsigned tpg_calc_frameline(const struct tpg_data *tpg, unsigned src_y, unsigned field) { … } /* * Map the line number relative to the compose rectangle to a destination * buffer line number. */ static unsigned tpg_calc_buffer_line(const struct tpg_data *tpg, unsigned y, unsigned field) { … } static void tpg_recalc(struct tpg_data *tpg) { … } void tpg_calc_text_basep(struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], unsigned p, u8 *vbuf) { … } EXPORT_SYMBOL_GPL(…); static int tpg_pattern_avg(const struct tpg_data *tpg, unsigned pat1, unsigned pat2) { … } static const char *tpg_color_enc_str(enum tgp_color_enc color_enc) { … } void tpg_log_status(struct tpg_data *tpg) { … } EXPORT_SYMBOL_GPL(…); /* * This struct contains common parameters used by both the drawing of the * test pattern and the drawing of the extras (borders, square, etc.) */ struct tpg_draw_params { … }; static void tpg_fill_params_pattern(const struct tpg_data *tpg, unsigned p, struct tpg_draw_params *params) { … } static void tpg_fill_params_extras(const struct tpg_data *tpg, unsigned p, struct tpg_draw_params *params) { … } static void tpg_fill_plane_extras(const struct tpg_data *tpg, const struct tpg_draw_params *params, unsigned p, unsigned h, u8 *vbuf) { … } static void tpg_fill_plane_pattern(const struct tpg_data *tpg, const struct tpg_draw_params *params, unsigned p, unsigned h, u8 *vbuf) { … } void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf) { … } EXPORT_SYMBOL_GPL(…); void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf) { … } EXPORT_SYMBOL_GPL(…); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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