// SPDX-License-Identifier: GPL-2.0-only
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/*
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* v4l2-tpg-core.c - Test Pattern Generator
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*
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* Note: gen_twopix and tpg_gen_text are based on code from vivi.c. See the
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* vivi.c source for the copyright information of those functions.
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*
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* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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*/
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#include <linux/module.h>
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#include <media/tpg/v4l2-tpg.h>
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/* Must remain in sync with enum tpg_pattern */
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const char * const tpg_pattern_strings[] = {
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"75% Colorbar",
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"100% Colorbar",
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"CSC Colorbar",
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"Horizontal 100% Colorbar",
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"100% Color Squares",
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"100% Black",
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"100% White",
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"100% Red",
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"100% Green",
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"100% Blue",
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"16x16 Checkers",
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"2x2 Checkers",
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"1x1 Checkers",
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"2x2 Red/Green Checkers",
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"1x1 Red/Green Checkers",
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"Alternating Hor Lines",
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"Alternating Vert Lines",
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"One Pixel Wide Cross",
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"Two Pixels Wide Cross",
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"Ten Pixels Wide Cross",
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"Gray Ramp",
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"Noise",
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NULL
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};
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EXPORT_SYMBOL_GPL(tpg_pattern_strings);
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/* Must remain in sync with enum tpg_aspect */
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const char * const tpg_aspect_strings[] = {
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"Source Width x Height",
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"4x3",
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"14x9",
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"16x9",
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"16x9 Anamorphic",
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NULL
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};
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EXPORT_SYMBOL_GPL(tpg_aspect_strings);
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/*
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* Sine table: sin[0] = 127 * sin(-180 degrees)
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* sin[128] = 127 * sin(0 degrees)
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* sin[256] = 127 * sin(180 degrees)
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*/
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static const s8 sin[257] = {
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0, -4, -7, -11, -13, -18, -20, -22, -26, -29, -33, -35, -37, -41, -43, -48,
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-50, -52, -56, -58, -62, -63, -65, -69, -71, -75, -76, -78, -82, -83, -87, -88,
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-90, -93, -94, -97, -99, -101, -103, -104, -107, -108, -110, -111, -112, -114, -115, -117,
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-118, -119, -120, -121, -122, -123, -123, -124, -125, -125, -126, -126, -127, -127, -127, -127,
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-127, -127, -127, -127, -126, -126, -125, -125, -124, -124, -123, -122, -121, -120, -119, -118,
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-117, -116, -114, -113, -111, -110, -109, -107, -105, -103, -101, -100, -97, -96, -93, -91,
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-90, -87, -85, -82, -80, -76, -75, -73, -69, -67, -63, -62, -60, -56, -54, -50,
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-48, -46, -41, -39, -35, -33, -31, -26, -24, -20, -18, -15, -11, -9, -4, -2,
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0, 2, 4, 9, 11, 15, 18, 20, 24, 26, 31, 33, 35, 39, 41, 46,
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48, 50, 54, 56, 60, 62, 64, 67, 69, 73, 75, 76, 80, 82, 85, 87,
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90, 91, 93, 96, 97, 100, 101, 103, 105, 107, 109, 110, 111, 113, 114, 116,
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117, 118, 119, 120, 121, 122, 123, 124, 124, 125, 125, 126, 126, 127, 127, 127,
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127, 127, 127, 127, 127, 126, 126, 125, 125, 124, 123, 123, 122, 121, 120, 119,
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118, 117, 115, 114, 112, 111, 110, 108, 107, 104, 103, 101, 99, 97, 94, 93,
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90, 88, 87, 83, 82, 78, 76, 75, 71, 69, 65, 64, 62, 58, 56, 52,
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50, 48, 43, 41, 37, 35, 33, 29, 26, 22, 20, 18, 13, 11, 7, 4,
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0,
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};
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#define cos(idx) sin[((idx) + 64) % sizeof(sin)]
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/* Global font descriptor */
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static const u8 *font8x16;
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void tpg_set_font(const u8 *f)
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{
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font8x16 = f;
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}
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EXPORT_SYMBOL_GPL(tpg_set_font);
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void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h)
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{
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memset(tpg, 0, sizeof(*tpg));
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tpg->scaled_width = tpg->src_width = w;
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tpg->src_height = tpg->buf_height = h;
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tpg->crop.width = tpg->compose.width = w;
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tpg->crop.height = tpg->compose.height = h;
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tpg->recalc_colors = true;
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tpg->recalc_square_border = true;
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tpg->brightness = 128;
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tpg->contrast = 128;
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tpg->saturation = 128;
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tpg->hue = 0;
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tpg->mv_hor_mode = TPG_MOVE_NONE;
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tpg->mv_vert_mode = TPG_MOVE_NONE;
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tpg->field = V4L2_FIELD_NONE;
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tpg_s_fourcc(tpg, V4L2_PIX_FMT_RGB24);
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tpg->colorspace = V4L2_COLORSPACE_SRGB;
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tpg->perc_fill = 100;
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tpg->hsv_enc = V4L2_HSV_ENC_180;
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}
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EXPORT_SYMBOL_GPL(tpg_init);
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int tpg_alloc(struct tpg_data *tpg, unsigned max_w)
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{
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unsigned pat;
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unsigned plane;
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tpg->max_line_width = max_w;
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for (pat = 0; pat < TPG_MAX_PAT_LINES; pat++) {
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for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
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unsigned pixelsz = plane ? 2 : 4;
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tpg->lines[pat][plane] =
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vzalloc(array3_size(max_w, 2, pixelsz));
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if (!tpg->lines[pat][plane])
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return -ENOMEM;
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if (plane == 0)
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continue;
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tpg->downsampled_lines[pat][plane] =
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vzalloc(array3_size(max_w, 2, pixelsz));
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if (!tpg->downsampled_lines[pat][plane])
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return -ENOMEM;
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}
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}
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for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
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unsigned pixelsz = plane ? 2 : 4;
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tpg->contrast_line[plane] =
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vzalloc(array_size(pixelsz, max_w));
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if (!tpg->contrast_line[plane])
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return -ENOMEM;
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tpg->black_line[plane] =
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vzalloc(array_size(pixelsz, max_w));
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if (!tpg->black_line[plane])
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return -ENOMEM;
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tpg->random_line[plane] =
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vzalloc(array3_size(max_w, 2, pixelsz));
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if (!tpg->random_line[plane])
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return -ENOMEM;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(tpg_alloc);
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void tpg_free(struct tpg_data *tpg)
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{
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unsigned pat;
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unsigned plane;
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for (pat = 0; pat < TPG_MAX_PAT_LINES; pat++)
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for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
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vfree(tpg->lines[pat][plane]);
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tpg->lines[pat][plane] = NULL;
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if (plane == 0)
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continue;
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vfree(tpg->downsampled_lines[pat][plane]);
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tpg->downsampled_lines[pat][plane] = NULL;
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}
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for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
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vfree(tpg->contrast_line[plane]);
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vfree(tpg->black_line[plane]);
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vfree(tpg->random_line[plane]);
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tpg->contrast_line[plane] = NULL;
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tpg->black_line[plane] = NULL;
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tpg->random_line[plane] = NULL;
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}
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}
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EXPORT_SYMBOL_GPL(tpg_free);
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bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
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{
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tpg->fourcc = fourcc;
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tpg->planes = 1;
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tpg->buffers = 1;
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tpg->recalc_colors = true;
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tpg->interleaved = false;
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tpg->vdownsampling[0] = 1;
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tpg->hdownsampling[0] = 1;
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tpg->hmask[0] = ~0;
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tpg->hmask[1] = ~0;
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tpg->hmask[2] = ~0;
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switch (fourcc) {
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case V4L2_PIX_FMT_SBGGR8:
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case V4L2_PIX_FMT_SGBRG8:
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case V4L2_PIX_FMT_SGRBG8:
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case V4L2_PIX_FMT_SRGGB8:
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case V4L2_PIX_FMT_SBGGR10:
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case V4L2_PIX_FMT_SGBRG10:
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case V4L2_PIX_FMT_SGRBG10:
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case V4L2_PIX_FMT_SRGGB10:
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case V4L2_PIX_FMT_SBGGR12:
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case V4L2_PIX_FMT_SGBRG12:
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case V4L2_PIX_FMT_SGRBG12:
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case V4L2_PIX_FMT_SRGGB12:
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case V4L2_PIX_FMT_SBGGR16:
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case V4L2_PIX_FMT_SGBRG16:
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case V4L2_PIX_FMT_SGRBG16:
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case V4L2_PIX_FMT_SRGGB16:
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tpg->interleaved = true;
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tpg->vdownsampling[1] = 1;
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tpg->hdownsampling[1] = 1;
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tpg->planes = 2;
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fallthrough;
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case V4L2_PIX_FMT_RGB332:
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case V4L2_PIX_FMT_RGB565:
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case V4L2_PIX_FMT_RGB565X:
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case V4L2_PIX_FMT_RGB444:
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case V4L2_PIX_FMT_XRGB444:
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case V4L2_PIX_FMT_ARGB444:
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case V4L2_PIX_FMT_RGBX444:
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case V4L2_PIX_FMT_RGBA444:
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case V4L2_PIX_FMT_XBGR444:
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case V4L2_PIX_FMT_ABGR444:
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case V4L2_PIX_FMT_BGRX444:
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case V4L2_PIX_FMT_BGRA444:
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case V4L2_PIX_FMT_RGB555:
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case V4L2_PIX_FMT_XRGB555:
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case V4L2_PIX_FMT_ARGB555:
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case V4L2_PIX_FMT_RGBX555:
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case V4L2_PIX_FMT_RGBA555:
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case V4L2_PIX_FMT_XBGR555:
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case V4L2_PIX_FMT_ABGR555:
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case V4L2_PIX_FMT_BGRX555:
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case V4L2_PIX_FMT_BGRA555:
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case V4L2_PIX_FMT_RGB555X:
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case V4L2_PIX_FMT_XRGB555X:
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case V4L2_PIX_FMT_ARGB555X:
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case V4L2_PIX_FMT_BGR666:
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case V4L2_PIX_FMT_RGB24:
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case V4L2_PIX_FMT_BGR24:
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case V4L2_PIX_FMT_RGB32:
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case V4L2_PIX_FMT_BGR32:
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case V4L2_PIX_FMT_XRGB32:
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case V4L2_PIX_FMT_XBGR32:
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case V4L2_PIX_FMT_ARGB32:
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case V4L2_PIX_FMT_ABGR32:
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case V4L2_PIX_FMT_RGBX32:
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case V4L2_PIX_FMT_BGRX32:
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case V4L2_PIX_FMT_RGBA32:
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case V4L2_PIX_FMT_BGRA32:
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tpg->color_enc = TGP_COLOR_ENC_RGB;
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break;
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case V4L2_PIX_FMT_GREY:
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case V4L2_PIX_FMT_Y10:
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case V4L2_PIX_FMT_Y12:
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case V4L2_PIX_FMT_Y16:
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case V4L2_PIX_FMT_Y16_BE:
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case V4L2_PIX_FMT_Z16:
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tpg->color_enc = TGP_COLOR_ENC_LUMA;
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break;
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case V4L2_PIX_FMT_YUV444:
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case V4L2_PIX_FMT_YUV555:
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case V4L2_PIX_FMT_YUV565:
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case V4L2_PIX_FMT_YUV32:
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case V4L2_PIX_FMT_AYUV32:
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case V4L2_PIX_FMT_XYUV32:
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case V4L2_PIX_FMT_VUYA32:
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case V4L2_PIX_FMT_VUYX32:
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_YUV420M:
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case V4L2_PIX_FMT_YVU420M:
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tpg->buffers = 3;
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fallthrough;
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case V4L2_PIX_FMT_YUV420:
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case V4L2_PIX_FMT_YVU420:
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tpg->vdownsampling[1] = 2;
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tpg->vdownsampling[2] = 2;
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tpg->hdownsampling[1] = 2;
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tpg->hdownsampling[2] = 2;
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tpg->planes = 3;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_YUV422M:
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case V4L2_PIX_FMT_YVU422M:
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tpg->buffers = 3;
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fallthrough;
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case V4L2_PIX_FMT_YUV422P:
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tpg->vdownsampling[1] = 1;
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tpg->vdownsampling[2] = 1;
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tpg->hdownsampling[1] = 2;
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tpg->hdownsampling[2] = 2;
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tpg->planes = 3;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_NV16M:
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case V4L2_PIX_FMT_NV61M:
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tpg->buffers = 2;
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fallthrough;
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case V4L2_PIX_FMT_NV16:
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case V4L2_PIX_FMT_NV61:
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tpg->vdownsampling[1] = 1;
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tpg->hdownsampling[1] = 1;
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tpg->hmask[1] = ~1;
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tpg->planes = 2;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_NV12M:
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case V4L2_PIX_FMT_NV21M:
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tpg->buffers = 2;
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fallthrough;
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case V4L2_PIX_FMT_NV12:
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case V4L2_PIX_FMT_NV21:
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tpg->vdownsampling[1] = 2;
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tpg->hdownsampling[1] = 1;
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tpg->hmask[1] = ~1;
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tpg->planes = 2;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_YUV444M:
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case V4L2_PIX_FMT_YVU444M:
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tpg->buffers = 3;
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tpg->planes = 3;
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tpg->vdownsampling[1] = 1;
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tpg->vdownsampling[2] = 1;
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tpg->hdownsampling[1] = 1;
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tpg->hdownsampling[2] = 1;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_NV24:
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case V4L2_PIX_FMT_NV42:
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tpg->vdownsampling[1] = 1;
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tpg->hdownsampling[1] = 1;
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tpg->planes = 2;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_YUYV:
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case V4L2_PIX_FMT_UYVY:
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case V4L2_PIX_FMT_YVYU:
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case V4L2_PIX_FMT_VYUY:
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tpg->hmask[0] = ~1;
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tpg->color_enc = TGP_COLOR_ENC_YCBCR;
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break;
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case V4L2_PIX_FMT_HSV24:
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case V4L2_PIX_FMT_HSV32:
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tpg->color_enc = TGP_COLOR_ENC_HSV;
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break;
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default:
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return false;
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}
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switch (fourcc) {
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case V4L2_PIX_FMT_GREY:
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case V4L2_PIX_FMT_RGB332:
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tpg->twopixelsize[0] = 2;
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break;
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case V4L2_PIX_FMT_RGB565:
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case V4L2_PIX_FMT_RGB565X:
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case V4L2_PIX_FMT_RGB444:
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case V4L2_PIX_FMT_XRGB444:
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case V4L2_PIX_FMT_ARGB444:
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case V4L2_PIX_FMT_RGBX444:
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case V4L2_PIX_FMT_RGBA444:
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case V4L2_PIX_FMT_XBGR444:
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case V4L2_PIX_FMT_ABGR444:
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case V4L2_PIX_FMT_BGRX444:
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case V4L2_PIX_FMT_BGRA444:
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case V4L2_PIX_FMT_RGB555:
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case V4L2_PIX_FMT_XRGB555:
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case V4L2_PIX_FMT_ARGB555:
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case V4L2_PIX_FMT_RGBX555:
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case V4L2_PIX_FMT_RGBA555:
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case V4L2_PIX_FMT_XBGR555:
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case V4L2_PIX_FMT_ABGR555:
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case V4L2_PIX_FMT_BGRX555:
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case V4L2_PIX_FMT_BGRA555:
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case V4L2_PIX_FMT_RGB555X:
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case V4L2_PIX_FMT_XRGB555X:
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case V4L2_PIX_FMT_ARGB555X:
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case V4L2_PIX_FMT_YUYV:
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case V4L2_PIX_FMT_UYVY:
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case V4L2_PIX_FMT_YVYU:
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case V4L2_PIX_FMT_VYUY:
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case V4L2_PIX_FMT_YUV444:
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case V4L2_PIX_FMT_YUV555:
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case V4L2_PIX_FMT_YUV565:
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case V4L2_PIX_FMT_Y10:
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case V4L2_PIX_FMT_Y12:
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case V4L2_PIX_FMT_Y16:
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case V4L2_PIX_FMT_Y16_BE:
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case V4L2_PIX_FMT_Z16:
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tpg->twopixelsize[0] = 2 * 2;
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break;
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case V4L2_PIX_FMT_RGB24:
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case V4L2_PIX_FMT_BGR24:
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case V4L2_PIX_FMT_HSV24:
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tpg->twopixelsize[0] = 2 * 3;
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break;
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case V4L2_PIX_FMT_BGR666:
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case V4L2_PIX_FMT_RGB32:
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case V4L2_PIX_FMT_BGR32:
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case V4L2_PIX_FMT_XRGB32:
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case V4L2_PIX_FMT_XBGR32:
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case V4L2_PIX_FMT_ARGB32:
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case V4L2_PIX_FMT_ABGR32:
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case V4L2_PIX_FMT_RGBX32:
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case V4L2_PIX_FMT_BGRX32:
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case V4L2_PIX_FMT_RGBA32:
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case V4L2_PIX_FMT_BGRA32:
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case V4L2_PIX_FMT_YUV32:
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case V4L2_PIX_FMT_AYUV32:
|
case V4L2_PIX_FMT_XYUV32:
|
case V4L2_PIX_FMT_VUYA32:
|
case V4L2_PIX_FMT_VUYX32:
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case V4L2_PIX_FMT_HSV32:
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tpg->twopixelsize[0] = 2 * 4;
|
break;
|
case V4L2_PIX_FMT_NV12:
|
case V4L2_PIX_FMT_NV21:
|
case V4L2_PIX_FMT_NV12M:
|
case V4L2_PIX_FMT_NV21M:
|
case V4L2_PIX_FMT_NV16:
|
case V4L2_PIX_FMT_NV61:
|
case V4L2_PIX_FMT_NV16M:
|
case V4L2_PIX_FMT_NV61M:
|
case V4L2_PIX_FMT_SBGGR8:
|
case V4L2_PIX_FMT_SGBRG8:
|
case V4L2_PIX_FMT_SGRBG8:
|
case V4L2_PIX_FMT_SRGGB8:
|
tpg->twopixelsize[0] = 2;
|
tpg->twopixelsize[1] = 2;
|
break;
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case V4L2_PIX_FMT_SRGGB10:
|
case V4L2_PIX_FMT_SGRBG10:
|
case V4L2_PIX_FMT_SGBRG10:
|
case V4L2_PIX_FMT_SBGGR10:
|
case V4L2_PIX_FMT_SRGGB12:
|
case V4L2_PIX_FMT_SGRBG12:
|
case V4L2_PIX_FMT_SGBRG12:
|
case V4L2_PIX_FMT_SBGGR12:
|
case V4L2_PIX_FMT_SRGGB16:
|
case V4L2_PIX_FMT_SGRBG16:
|
case V4L2_PIX_FMT_SGBRG16:
|
case V4L2_PIX_FMT_SBGGR16:
|
tpg->twopixelsize[0] = 4;
|
tpg->twopixelsize[1] = 4;
|
break;
|
case V4L2_PIX_FMT_YUV444M:
|
case V4L2_PIX_FMT_YVU444M:
|
case V4L2_PIX_FMT_YUV422M:
|
case V4L2_PIX_FMT_YVU422M:
|
case V4L2_PIX_FMT_YUV422P:
|
case V4L2_PIX_FMT_YUV420:
|
case V4L2_PIX_FMT_YVU420:
|
case V4L2_PIX_FMT_YUV420M:
|
case V4L2_PIX_FMT_YVU420M:
|
tpg->twopixelsize[0] = 2;
|
tpg->twopixelsize[1] = 2;
|
tpg->twopixelsize[2] = 2;
|
break;
|
case V4L2_PIX_FMT_NV24:
|
case V4L2_PIX_FMT_NV42:
|
tpg->twopixelsize[0] = 2;
|
tpg->twopixelsize[1] = 4;
|
break;
|
}
|
return true;
|
}
|
EXPORT_SYMBOL_GPL(tpg_s_fourcc);
|
|
void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
|
const struct v4l2_rect *compose)
|
{
|
tpg->crop = *crop;
|
tpg->compose = *compose;
|
tpg->scaled_width = (tpg->src_width * tpg->compose.width +
|
tpg->crop.width - 1) / tpg->crop.width;
|
tpg->scaled_width &= ~1;
|
if (tpg->scaled_width > tpg->max_line_width)
|
tpg->scaled_width = tpg->max_line_width;
|
if (tpg->scaled_width < 2)
|
tpg->scaled_width = 2;
|
tpg->recalc_lines = true;
|
}
|
EXPORT_SYMBOL_GPL(tpg_s_crop_compose);
|
|
void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
|
u32 field)
|
{
|
unsigned p;
|
|
tpg->src_width = width;
|
tpg->src_height = height;
|
tpg->field = field;
|
tpg->buf_height = height;
|
if (V4L2_FIELD_HAS_T_OR_B(field))
|
tpg->buf_height /= 2;
|
tpg->scaled_width = width;
|
tpg->crop.top = tpg->crop.left = 0;
|
tpg->crop.width = width;
|
tpg->crop.height = height;
|
tpg->compose.top = tpg->compose.left = 0;
|
tpg->compose.width = width;
|
tpg->compose.height = tpg->buf_height;
|
for (p = 0; p < tpg->planes; p++)
|
tpg->bytesperline[p] = (width * tpg->twopixelsize[p]) /
|
(2 * tpg->hdownsampling[p]);
|
tpg->recalc_square_border = true;
|
}
|
EXPORT_SYMBOL_GPL(tpg_reset_source);
|
|
static enum tpg_color tpg_get_textbg_color(struct tpg_data *tpg)
|
{
|
switch (tpg->pattern) {
|
case TPG_PAT_BLACK:
|
return TPG_COLOR_100_WHITE;
|
case TPG_PAT_CSC_COLORBAR:
|
return TPG_COLOR_CSC_BLACK;
|
default:
|
return TPG_COLOR_100_BLACK;
|
}
|
}
|
|
static enum tpg_color tpg_get_textfg_color(struct tpg_data *tpg)
|
{
|
switch (tpg->pattern) {
|
case TPG_PAT_75_COLORBAR:
|
case TPG_PAT_CSC_COLORBAR:
|
return TPG_COLOR_CSC_WHITE;
|
case TPG_PAT_BLACK:
|
return TPG_COLOR_100_BLACK;
|
default:
|
return TPG_COLOR_100_WHITE;
|
}
|
}
|
|
static inline int rec709_to_linear(int v)
|
{
|
v = clamp(v, 0, 0xff0);
|
return tpg_rec709_to_linear[v];
|
}
|
|
static inline int linear_to_rec709(int v)
|
{
|
v = clamp(v, 0, 0xff0);
|
return tpg_linear_to_rec709[v];
|
}
|
|
static void color_to_hsv(struct tpg_data *tpg, int r, int g, int b,
|
int *h, int *s, int *v)
|
{
|
int max_rgb, min_rgb, diff_rgb;
|
int aux;
|
int third;
|
int third_size;
|
|
r >>= 4;
|
g >>= 4;
|
b >>= 4;
|
|
/* Value */
|
max_rgb = max3(r, g, b);
|
*v = max_rgb;
|
if (!max_rgb) {
|
*h = 0;
|
*s = 0;
|
return;
|
}
|
|
/* Saturation */
|
min_rgb = min3(r, g, b);
|
diff_rgb = max_rgb - min_rgb;
|
aux = 255 * diff_rgb;
|
aux += max_rgb / 2;
|
aux /= max_rgb;
|
*s = aux;
|
if (!aux) {
|
*h = 0;
|
return;
|
}
|
|
third_size = (tpg->real_hsv_enc == V4L2_HSV_ENC_180) ? 60 : 85;
|
|
/* Hue */
|
if (max_rgb == r) {
|
aux = g - b;
|
third = 0;
|
} else if (max_rgb == g) {
|
aux = b - r;
|
third = third_size;
|
} else {
|
aux = r - g;
|
third = third_size * 2;
|
}
|
|
aux *= third_size / 2;
|
aux += diff_rgb / 2;
|
aux /= diff_rgb;
|
aux += third;
|
|
/* Clamp Hue */
|
if (tpg->real_hsv_enc == V4L2_HSV_ENC_180) {
|
if (aux < 0)
|
aux += 180;
|
else if (aux > 180)
|
aux -= 180;
|
} else {
|
aux = aux & 0xff;
|
}
|
|
*h = aux;
|
}
|
|
static void rgb2ycbcr(const int m[3][3], int r, int g, int b,
|
int y_offset, int *y, int *cb, int *cr)
|
{
|
*y = ((m[0][0] * r + m[0][1] * g + m[0][2] * b) >> 16) + (y_offset << 4);
|
*cb = ((m[1][0] * r + m[1][1] * g + m[1][2] * b) >> 16) + (128 << 4);
|
*cr = ((m[2][0] * r + m[2][1] * g + m[2][2] * b) >> 16) + (128 << 4);
|
}
|
|
static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b,
|
int *y, int *cb, int *cr)
|
{
|
#define COEFF(v, r) ((int)(0.5 + (v) * (r) * 256.0))
|
|
static const int bt601[3][3] = {
|
{ COEFF(0.299, 219), COEFF(0.587, 219), COEFF(0.114, 219) },
|
{ COEFF(-0.1687, 224), COEFF(-0.3313, 224), COEFF(0.5, 224) },
|
{ COEFF(0.5, 224), COEFF(-0.4187, 224), COEFF(-0.0813, 224) },
|
};
|
static const int bt601_full[3][3] = {
|
{ COEFF(0.299, 255), COEFF(0.587, 255), COEFF(0.114, 255) },
|
{ COEFF(-0.1687, 255), COEFF(-0.3313, 255), COEFF(0.5, 255) },
|
{ COEFF(0.5, 255), COEFF(-0.4187, 255), COEFF(-0.0813, 255) },
|
};
|
static const int rec709[3][3] = {
|
{ COEFF(0.2126, 219), COEFF(0.7152, 219), COEFF(0.0722, 219) },
|
{ COEFF(-0.1146, 224), COEFF(-0.3854, 224), COEFF(0.5, 224) },
|
{ COEFF(0.5, 224), COEFF(-0.4542, 224), COEFF(-0.0458, 224) },
|
};
|
static const int rec709_full[3][3] = {
|
{ COEFF(0.2126, 255), COEFF(0.7152, 255), COEFF(0.0722, 255) },
|
{ COEFF(-0.1146, 255), COEFF(-0.3854, 255), COEFF(0.5, 255) },
|
{ COEFF(0.5, 255), COEFF(-0.4542, 255), COEFF(-0.0458, 255) },
|
};
|
static const int smpte240m[3][3] = {
|
{ COEFF(0.212, 219), COEFF(0.701, 219), COEFF(0.087, 219) },
|
{ COEFF(-0.116, 224), COEFF(-0.384, 224), COEFF(0.5, 224) },
|
{ COEFF(0.5, 224), COEFF(-0.445, 224), COEFF(-0.055, 224) },
|
};
|
static const int smpte240m_full[3][3] = {
|
{ COEFF(0.212, 255), COEFF(0.701, 255), COEFF(0.087, 255) },
|
{ COEFF(-0.116, 255), COEFF(-0.384, 255), COEFF(0.5, 255) },
|
{ COEFF(0.5, 255), COEFF(-0.445, 255), COEFF(-0.055, 255) },
|
};
|
static const int bt2020[3][3] = {
|
{ COEFF(0.2627, 219), COEFF(0.6780, 219), COEFF(0.0593, 219) },
|
{ COEFF(-0.1396, 224), COEFF(-0.3604, 224), COEFF(0.5, 224) },
|
{ COEFF(0.5, 224), COEFF(-0.4598, 224), COEFF(-0.0402, 224) },
|
};
|
static const int bt2020_full[3][3] = {
|
{ COEFF(0.2627, 255), COEFF(0.6780, 255), COEFF(0.0593, 255) },
|
{ COEFF(-0.1396, 255), COEFF(-0.3604, 255), COEFF(0.5, 255) },
|
{ COEFF(0.5, 255), COEFF(-0.4598, 255), COEFF(-0.0402, 255) },
|
};
|
static const int bt2020c[4] = {
|
COEFF(1.0 / 1.9404, 224), COEFF(1.0 / 1.5816, 224),
|
COEFF(1.0 / 1.7184, 224), COEFF(1.0 / 0.9936, 224),
|
};
|
static const int bt2020c_full[4] = {
|
COEFF(1.0 / 1.9404, 255), COEFF(1.0 / 1.5816, 255),
|
COEFF(1.0 / 1.7184, 255), COEFF(1.0 / 0.9936, 255),
|
};
|
|
bool full = tpg->real_quantization == V4L2_QUANTIZATION_FULL_RANGE;
|
unsigned y_offset = full ? 0 : 16;
|
int lin_y, yc;
|
|
switch (tpg->real_ycbcr_enc) {
|
case V4L2_YCBCR_ENC_601:
|
rgb2ycbcr(full ? bt601_full : bt601, r, g, b, y_offset, y, cb, cr);
|
break;
|
case V4L2_YCBCR_ENC_XV601:
|
/* Ignore quantization range, there is only one possible
|
* Y'CbCr encoding. */
|
rgb2ycbcr(bt601, r, g, b, 16, y, cb, cr);
|
break;
|
case V4L2_YCBCR_ENC_XV709:
|
/* Ignore quantization range, there is only one possible
|
* Y'CbCr encoding. */
|
rgb2ycbcr(rec709, r, g, b, 16, y, cb, cr);
|
break;
|
case V4L2_YCBCR_ENC_BT2020:
|
rgb2ycbcr(full ? bt2020_full : bt2020, r, g, b, y_offset, y, cb, cr);
|
break;
|
case V4L2_YCBCR_ENC_BT2020_CONST_LUM:
|
lin_y = (COEFF(0.2627, 255) * rec709_to_linear(r) +
|
COEFF(0.6780, 255) * rec709_to_linear(g) +
|
COEFF(0.0593, 255) * rec709_to_linear(b)) >> 16;
|
yc = linear_to_rec709(lin_y);
|
*y = full ? yc : (yc * 219) / 255 + (16 << 4);
|
if (b <= yc)
|
*cb = (((b - yc) * (full ? bt2020c_full[0] : bt2020c[0])) >> 16) + (128 << 4);
|
else
|
*cb = (((b - yc) * (full ? bt2020c_full[1] : bt2020c[1])) >> 16) + (128 << 4);
|
if (r <= yc)
|
*cr = (((r - yc) * (full ? bt2020c_full[2] : bt2020c[2])) >> 16) + (128 << 4);
|
else
|
*cr = (((r - yc) * (full ? bt2020c_full[3] : bt2020c[3])) >> 16) + (128 << 4);
|
break;
|
case V4L2_YCBCR_ENC_SMPTE240M:
|
rgb2ycbcr(full ? smpte240m_full : smpte240m, r, g, b, y_offset, y, cb, cr);
|
break;
|
case V4L2_YCBCR_ENC_709:
|
default:
|
rgb2ycbcr(full ? rec709_full : rec709, r, g, b, y_offset, y, cb, cr);
|
break;
|
}
|
}
|
|
static void ycbcr2rgb(const int m[3][3], int y, int cb, int cr,
|
int y_offset, int *r, int *g, int *b)
|
{
|
y -= y_offset << 4;
|
cb -= 128 << 4;
|
cr -= 128 << 4;
|
*r = m[0][0] * y + m[0][1] * cb + m[0][2] * cr;
|
*g = m[1][0] * y + m[1][1] * cb + m[1][2] * cr;
|
*b = m[2][0] * y + m[2][1] * cb + m[2][2] * cr;
|
*r = clamp(*r >> 12, 0, 0xff0);
|
*g = clamp(*g >> 12, 0, 0xff0);
|
*b = clamp(*b >> 12, 0, 0xff0);
|
}
|
|
static void ycbcr_to_color(struct tpg_data *tpg, int y, int cb, int cr,
|
int *r, int *g, int *b)
|
{
|
#undef COEFF
|
#define COEFF(v, r) ((int)(0.5 + (v) * ((255.0 * 255.0 * 16.0) / (r))))
|
static const int bt601[3][3] = {
|
{ COEFF(1, 219), COEFF(0, 224), COEFF(1.4020, 224) },
|
{ COEFF(1, 219), COEFF(-0.3441, 224), COEFF(-0.7141, 224) },
|
{ COEFF(1, 219), COEFF(1.7720, 224), COEFF(0, 224) },
|
};
|
static const int bt601_full[3][3] = {
|
{ COEFF(1, 255), COEFF(0, 255), COEFF(1.4020, 255) },
|
{ COEFF(1, 255), COEFF(-0.3441, 255), COEFF(-0.7141, 255) },
|
{ COEFF(1, 255), COEFF(1.7720, 255), COEFF(0, 255) },
|
};
|
static const int rec709[3][3] = {
|
{ COEFF(1, 219), COEFF(0, 224), COEFF(1.5748, 224) },
|
{ COEFF(1, 219), COEFF(-0.1873, 224), COEFF(-0.4681, 224) },
|
{ COEFF(1, 219), COEFF(1.8556, 224), COEFF(0, 224) },
|
};
|
static const int rec709_full[3][3] = {
|
{ COEFF(1, 255), COEFF(0, 255), COEFF(1.5748, 255) },
|
{ COEFF(1, 255), COEFF(-0.1873, 255), COEFF(-0.4681, 255) },
|
{ COEFF(1, 255), COEFF(1.8556, 255), COEFF(0, 255) },
|
};
|
static const int smpte240m[3][3] = {
|
{ COEFF(1, 219), COEFF(0, 224), COEFF(1.5756, 224) },
|
{ COEFF(1, 219), COEFF(-0.2253, 224), COEFF(-0.4767, 224) },
|
{ COEFF(1, 219), COEFF(1.8270, 224), COEFF(0, 224) },
|
};
|
static const int smpte240m_full[3][3] = {
|
{ COEFF(1, 255), COEFF(0, 255), COEFF(1.5756, 255) },
|
{ COEFF(1, 255), COEFF(-0.2253, 255), COEFF(-0.4767, 255) },
|
{ COEFF(1, 255), COEFF(1.8270, 255), COEFF(0, 255) },
|
};
|
static const int bt2020[3][3] = {
|
{ COEFF(1, 219), COEFF(0, 224), COEFF(1.4746, 224) },
|
{ COEFF(1, 219), COEFF(-0.1646, 224), COEFF(-0.5714, 224) },
|
{ COEFF(1, 219), COEFF(1.8814, 224), COEFF(0, 224) },
|
};
|
static const int bt2020_full[3][3] = {
|
{ COEFF(1, 255), COEFF(0, 255), COEFF(1.4746, 255) },
|
{ COEFF(1, 255), COEFF(-0.1646, 255), COEFF(-0.5714, 255) },
|
{ COEFF(1, 255), COEFF(1.8814, 255), COEFF(0, 255) },
|
};
|
static const int bt2020c[4] = {
|
COEFF(1.9404, 224), COEFF(1.5816, 224),
|
COEFF(1.7184, 224), COEFF(0.9936, 224),
|
};
|
static const int bt2020c_full[4] = {
|
COEFF(1.9404, 255), COEFF(1.5816, 255),
|
COEFF(1.7184, 255), COEFF(0.9936, 255),
|
};
|
|
bool full = tpg->real_quantization == V4L2_QUANTIZATION_FULL_RANGE;
|
unsigned y_offset = full ? 0 : 16;
|
int y_fac = full ? COEFF(1.0, 255) : COEFF(1.0, 219);
|
int lin_r, lin_g, lin_b, lin_y;
|
|
switch (tpg->real_ycbcr_enc) {
|
case V4L2_YCBCR_ENC_601:
|
ycbcr2rgb(full ? bt601_full : bt601, y, cb, cr, y_offset, r, g, b);
|
break;
|
case V4L2_YCBCR_ENC_XV601:
|
/* Ignore quantization range, there is only one possible
|
* Y'CbCr encoding. */
|
ycbcr2rgb(bt601, y, cb, cr, 16, r, g, b);
|
break;
|
case V4L2_YCBCR_ENC_XV709:
|
/* Ignore quantization range, there is only one possible
|
* Y'CbCr encoding. */
|
ycbcr2rgb(rec709, y, cb, cr, 16, r, g, b);
|
break;
|
case V4L2_YCBCR_ENC_BT2020:
|
ycbcr2rgb(full ? bt2020_full : bt2020, y, cb, cr, y_offset, r, g, b);
|
break;
|
case V4L2_YCBCR_ENC_BT2020_CONST_LUM:
|
y -= full ? 0 : 16 << 4;
|
cb -= 128 << 4;
|
cr -= 128 << 4;
|
|
if (cb <= 0)
|
*b = y_fac * y + (full ? bt2020c_full[0] : bt2020c[0]) * cb;
|
else
|
*b = y_fac * y + (full ? bt2020c_full[1] : bt2020c[1]) * cb;
|
*b = *b >> 12;
|
if (cr <= 0)
|
*r = y_fac * y + (full ? bt2020c_full[2] : bt2020c[2]) * cr;
|
else
|
*r = y_fac * y + (full ? bt2020c_full[3] : bt2020c[3]) * cr;
|
*r = *r >> 12;
|
lin_r = rec709_to_linear(*r);
|
lin_b = rec709_to_linear(*b);
|
lin_y = rec709_to_linear((y * 255) / (full ? 255 : 219));
|
|
lin_g = COEFF(1.0 / 0.6780, 255) * lin_y -
|
COEFF(0.2627 / 0.6780, 255) * lin_r -
|
COEFF(0.0593 / 0.6780, 255) * lin_b;
|
*g = linear_to_rec709(lin_g >> 12);
|
break;
|
case V4L2_YCBCR_ENC_SMPTE240M:
|
ycbcr2rgb(full ? smpte240m_full : smpte240m, y, cb, cr, y_offset, r, g, b);
|
break;
|
case V4L2_YCBCR_ENC_709:
|
default:
|
ycbcr2rgb(full ? rec709_full : rec709, y, cb, cr, y_offset, r, g, b);
|
break;
|
}
|
}
|
|
/* precalculate color bar values to speed up rendering */
|
static void precalculate_color(struct tpg_data *tpg, int k)
|
{
|
int col = k;
|
int r = tpg_colors[col].r;
|
int g = tpg_colors[col].g;
|
int b = tpg_colors[col].b;
|
int y, cb, cr;
|
bool ycbcr_valid = false;
|
|
if (k == TPG_COLOR_TEXTBG) {
|
col = tpg_get_textbg_color(tpg);
|
|
r = tpg_colors[col].r;
|
g = tpg_colors[col].g;
|
b = tpg_colors[col].b;
|
} else if (k == TPG_COLOR_TEXTFG) {
|
col = tpg_get_textfg_color(tpg);
|
|
r = tpg_colors[col].r;
|
g = tpg_colors[col].g;
|
b = tpg_colors[col].b;
|
} else if (tpg->pattern == TPG_PAT_NOISE) {
|
r = g = b = prandom_u32_max(256);
|
} else if (k == TPG_COLOR_RANDOM) {
|
r = g = b = tpg->qual_offset + prandom_u32_max(196);
|
} else if (k >= TPG_COLOR_RAMP) {
|
r = g = b = k - TPG_COLOR_RAMP;
|
}
|
|
if (tpg->pattern == TPG_PAT_CSC_COLORBAR && col <= TPG_COLOR_CSC_BLACK) {
|
r = tpg_csc_colors[tpg->colorspace][tpg->real_xfer_func][col].r;
|
g = tpg_csc_colors[tpg->colorspace][tpg->real_xfer_func][col].g;
|
b = tpg_csc_colors[tpg->colorspace][tpg->real_xfer_func][col].b;
|
} else {
|
r <<= 4;
|
g <<= 4;
|
b <<= 4;
|
}
|
|
if (tpg->qual == TPG_QUAL_GRAY ||
|
tpg->color_enc == TGP_COLOR_ENC_LUMA) {
|
/* Rec. 709 Luma function */
|
/* (0.2126, 0.7152, 0.0722) * (255 * 256) */
|
r = g = b = (13879 * r + 46688 * g + 4713 * b) >> 16;
|
}
|
|
/*
|
* The assumption is that the RGB output is always full range,
|
* so only if the rgb_range overrides the 'real' rgb range do
|
* we need to convert the RGB values.
|
*
|
* Remember that r, g and b are still in the 0 - 0xff0 range.
|
*/
|
if (tpg->real_rgb_range == V4L2_DV_RGB_RANGE_LIMITED &&
|
tpg->rgb_range == V4L2_DV_RGB_RANGE_FULL &&
|
tpg->color_enc == TGP_COLOR_ENC_RGB) {
|
/*
|
* Convert from full range (which is what r, g and b are)
|
* to limited range (which is the 'real' RGB range), which
|
* is then interpreted as full range.
|
*/
|
r = (r * 219) / 255 + (16 << 4);
|
g = (g * 219) / 255 + (16 << 4);
|
b = (b * 219) / 255 + (16 << 4);
|
} else if (tpg->real_rgb_range != V4L2_DV_RGB_RANGE_LIMITED &&
|
tpg->rgb_range == V4L2_DV_RGB_RANGE_LIMITED &&
|
tpg->color_enc == TGP_COLOR_ENC_RGB) {
|
|
/*
|
* Clamp r, g and b to the limited range and convert to full
|
* range since that's what we deliver.
|
*/
|
r = clamp(r, 16 << 4, 235 << 4);
|
g = clamp(g, 16 << 4, 235 << 4);
|
b = clamp(b, 16 << 4, 235 << 4);
|
r = (r - (16 << 4)) * 255 / 219;
|
g = (g - (16 << 4)) * 255 / 219;
|
b = (b - (16 << 4)) * 255 / 219;
|
}
|
|
if ((tpg->brightness != 128 || tpg->contrast != 128 ||
|
tpg->saturation != 128 || tpg->hue) &&
|
tpg->color_enc != TGP_COLOR_ENC_LUMA) {
|
/* Implement these operations */
|
int tmp_cb, tmp_cr;
|
|
/* First convert to YCbCr */
|
|
color_to_ycbcr(tpg, r, g, b, &y, &cb, &cr);
|
|
y = (16 << 4) + ((y - (16 << 4)) * tpg->contrast) / 128;
|
y += (tpg->brightness << 4) - (128 << 4);
|
|
cb -= 128 << 4;
|
cr -= 128 << 4;
|
tmp_cb = (cb * cos(128 + tpg->hue)) / 127 + (cr * sin[128 + tpg->hue]) / 127;
|
tmp_cr = (cr * cos(128 + tpg->hue)) / 127 - (cb * sin[128 + tpg->hue]) / 127;
|
|
cb = (128 << 4) + (tmp_cb * tpg->contrast * tpg->saturation) / (128 * 128);
|
cr = (128 << 4) + (tmp_cr * tpg->contrast * tpg->saturation) / (128 * 128);
|
if (tpg->color_enc == TGP_COLOR_ENC_YCBCR)
|
ycbcr_valid = true;
|
else
|
ycbcr_to_color(tpg, y, cb, cr, &r, &g, &b);
|
} else if ((tpg->brightness != 128 || tpg->contrast != 128) &&
|
tpg->color_enc == TGP_COLOR_ENC_LUMA) {
|
r = (16 << 4) + ((r - (16 << 4)) * tpg->contrast) / 128;
|
r += (tpg->brightness << 4) - (128 << 4);
|
}
|
|
switch (tpg->color_enc) {
|
case TGP_COLOR_ENC_HSV:
|
{
|
int h, s, v;
|
|
color_to_hsv(tpg, r, g, b, &h, &s, &v);
|
tpg->colors[k][0] = h;
|
tpg->colors[k][1] = s;
|
tpg->colors[k][2] = v;
|
break;
|
}
|
case TGP_COLOR_ENC_YCBCR:
|
{
|
/* Convert to YCbCr */
|
if (!ycbcr_valid)
|
color_to_ycbcr(tpg, r, g, b, &y, &cb, &cr);
|
|
y >>= 4;
|
cb >>= 4;
|
cr >>= 4;
|
/*
|
* XV601/709 use the header/footer margins to encode R', G'
|
* and B' values outside the range [0-1]. So do not clamp
|
* XV601/709 values.
|
*/
|
if (tpg->real_quantization == V4L2_QUANTIZATION_LIM_RANGE &&
|
tpg->real_ycbcr_enc != V4L2_YCBCR_ENC_XV601 &&
|
tpg->real_ycbcr_enc != V4L2_YCBCR_ENC_XV709) {
|
y = clamp(y, 16, 235);
|
cb = clamp(cb, 16, 240);
|
cr = clamp(cr, 16, 240);
|
} else {
|
y = clamp(y, 1, 254);
|
cb = clamp(cb, 1, 254);
|
cr = clamp(cr, 1, 254);
|
}
|
switch (tpg->fourcc) {
|
case V4L2_PIX_FMT_YUV444:
|
y >>= 4;
|
cb >>= 4;
|
cr >>= 4;
|
break;
|
case V4L2_PIX_FMT_YUV555:
|
y >>= 3;
|
cb >>= 3;
|
cr >>= 3;
|
break;
|
case V4L2_PIX_FMT_YUV565:
|
y >>= 3;
|
cb >>= 2;
|
cr >>= 3;
|
break;
|
}
|
tpg->colors[k][0] = y;
|
tpg->colors[k][1] = cb;
|
tpg->colors[k][2] = cr;
|
break;
|
}
|
case TGP_COLOR_ENC_LUMA:
|
{
|
tpg->colors[k][0] = r >> 4;
|
break;
|
}
|
case TGP_COLOR_ENC_RGB:
|
{
|
if (tpg->real_quantization == V4L2_QUANTIZATION_LIM_RANGE) {
|
r = (r * 219) / 255 + (16 << 4);
|
g = (g * 219) / 255 + (16 << 4);
|
b = (b * 219) / 255 + (16 << 4);
|
}
|
switch (tpg->fourcc) {
|
case V4L2_PIX_FMT_RGB332:
|
r >>= 9;
|
g >>= 9;
|
b >>= 10;
|
break;
|
case V4L2_PIX_FMT_RGB565:
|
case V4L2_PIX_FMT_RGB565X:
|
r >>= 7;
|
g >>= 6;
|
b >>= 7;
|
break;
|
case V4L2_PIX_FMT_RGB444:
|
case V4L2_PIX_FMT_XRGB444:
|
case V4L2_PIX_FMT_ARGB444:
|
case V4L2_PIX_FMT_RGBX444:
|
case V4L2_PIX_FMT_RGBA444:
|
case V4L2_PIX_FMT_XBGR444:
|
case V4L2_PIX_FMT_ABGR444:
|
case V4L2_PIX_FMT_BGRX444:
|
case V4L2_PIX_FMT_BGRA444:
|
r >>= 8;
|
g >>= 8;
|
b >>= 8;
|
break;
|
case V4L2_PIX_FMT_RGB555:
|
case V4L2_PIX_FMT_XRGB555:
|
case V4L2_PIX_FMT_ARGB555:
|
case V4L2_PIX_FMT_RGBX555:
|
case V4L2_PIX_FMT_RGBA555:
|
case V4L2_PIX_FMT_XBGR555:
|
case V4L2_PIX_FMT_ABGR555:
|
case V4L2_PIX_FMT_BGRX555:
|
case V4L2_PIX_FMT_BGRA555:
|
case V4L2_PIX_FMT_RGB555X:
|
case V4L2_PIX_FMT_XRGB555X:
|
case V4L2_PIX_FMT_ARGB555X:
|
r >>= 7;
|
g >>= 7;
|
b >>= 7;
|
break;
|
case V4L2_PIX_FMT_BGR666:
|
r >>= 6;
|
g >>= 6;
|
b >>= 6;
|
break;
|
default:
|
r >>= 4;
|
g >>= 4;
|
b >>= 4;
|
break;
|
}
|
|
tpg->colors[k][0] = r;
|
tpg->colors[k][1] = g;
|
tpg->colors[k][2] = b;
|
break;
|
}
|
}
|
}
|
|
static void tpg_precalculate_colors(struct tpg_data *tpg)
|
{
|
int k;
|
|
for (k = 0; k < TPG_COLOR_MAX; k++)
|
precalculate_color(tpg, k);
|
}
|
|
/* '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 offset = odd * tpg->twopixelsize[0] / 2;
|
u8 alpha = tpg->alpha_component;
|
u8 r_y_h, g_u_s, b_v;
|
|
if (tpg->alpha_red_only && color != TPG_COLOR_CSC_RED &&
|
color != TPG_COLOR_100_RED &&
|
color != TPG_COLOR_75_RED)
|
alpha = 0;
|
if (color == TPG_COLOR_RANDOM)
|
precalculate_color(tpg, color);
|
r_y_h = tpg->colors[color][0]; /* R or precalculated Y, H */
|
g_u_s = tpg->colors[color][1]; /* G or precalculated U, V */
|
b_v = tpg->colors[color][2]; /* B or precalculated V */
|
|
switch (tpg->fourcc) {
|
case V4L2_PIX_FMT_GREY:
|
buf[0][offset] = r_y_h;
|
break;
|
case V4L2_PIX_FMT_Y10:
|
buf[0][offset] = (r_y_h << 2) & 0xff;
|
buf[0][offset+1] = r_y_h >> 6;
|
break;
|
case V4L2_PIX_FMT_Y12:
|
buf[0][offset] = (r_y_h << 4) & 0xff;
|
buf[0][offset+1] = r_y_h >> 4;
|
break;
|
case V4L2_PIX_FMT_Y16:
|
case V4L2_PIX_FMT_Z16:
|
/*
|
* Ideally both bytes should be set to r_y_h, but then you won't
|
* be able to detect endian problems. So keep it 0 except for
|
* the corner case where r_y_h is 0xff so white really will be
|
* white (0xffff).
|
*/
|
buf[0][offset] = r_y_h == 0xff ? r_y_h : 0;
|
buf[0][offset+1] = r_y_h;
|
break;
|
case V4L2_PIX_FMT_Y16_BE:
|
/* See comment for V4L2_PIX_FMT_Y16 above */
|
buf[0][offset] = r_y_h;
|
buf[0][offset+1] = r_y_h == 0xff ? r_y_h : 0;
|
break;
|
case V4L2_PIX_FMT_YUV422M:
|
case V4L2_PIX_FMT_YUV422P:
|
case V4L2_PIX_FMT_YUV420:
|
case V4L2_PIX_FMT_YUV420M:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[1][0] = (buf[1][0] + g_u_s) / 2;
|
buf[2][0] = (buf[2][0] + b_v) / 2;
|
buf[1][1] = buf[1][0];
|
buf[2][1] = buf[2][0];
|
break;
|
}
|
buf[1][0] = g_u_s;
|
buf[2][0] = b_v;
|
break;
|
case V4L2_PIX_FMT_YVU422M:
|
case V4L2_PIX_FMT_YVU420:
|
case V4L2_PIX_FMT_YVU420M:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[1][0] = (buf[1][0] + b_v) / 2;
|
buf[2][0] = (buf[2][0] + g_u_s) / 2;
|
buf[1][1] = buf[1][0];
|
buf[2][1] = buf[2][0];
|
break;
|
}
|
buf[1][0] = b_v;
|
buf[2][0] = g_u_s;
|
break;
|
|
case V4L2_PIX_FMT_NV12:
|
case V4L2_PIX_FMT_NV12M:
|
case V4L2_PIX_FMT_NV16:
|
case V4L2_PIX_FMT_NV16M:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[1][0] = (buf[1][0] + g_u_s) / 2;
|
buf[1][1] = (buf[1][1] + b_v) / 2;
|
break;
|
}
|
buf[1][0] = g_u_s;
|
buf[1][1] = b_v;
|
break;
|
case V4L2_PIX_FMT_NV21:
|
case V4L2_PIX_FMT_NV21M:
|
case V4L2_PIX_FMT_NV61:
|
case V4L2_PIX_FMT_NV61M:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[1][0] = (buf[1][0] + b_v) / 2;
|
buf[1][1] = (buf[1][1] + g_u_s) / 2;
|
break;
|
}
|
buf[1][0] = b_v;
|
buf[1][1] = g_u_s;
|
break;
|
|
case V4L2_PIX_FMT_YUV444M:
|
buf[0][offset] = r_y_h;
|
buf[1][offset] = g_u_s;
|
buf[2][offset] = b_v;
|
break;
|
|
case V4L2_PIX_FMT_YVU444M:
|
buf[0][offset] = r_y_h;
|
buf[1][offset] = b_v;
|
buf[2][offset] = g_u_s;
|
break;
|
|
case V4L2_PIX_FMT_NV24:
|
buf[0][offset] = r_y_h;
|
buf[1][2 * offset] = g_u_s;
|
buf[1][(2 * offset + 1) % 8] = b_v;
|
break;
|
|
case V4L2_PIX_FMT_NV42:
|
buf[0][offset] = r_y_h;
|
buf[1][2 * offset] = b_v;
|
buf[1][(2 * offset + 1) % 8] = g_u_s;
|
break;
|
|
case V4L2_PIX_FMT_YUYV:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[0][1] = (buf[0][1] + g_u_s) / 2;
|
buf[0][3] = (buf[0][3] + b_v) / 2;
|
break;
|
}
|
buf[0][1] = g_u_s;
|
buf[0][3] = b_v;
|
break;
|
case V4L2_PIX_FMT_UYVY:
|
buf[0][offset + 1] = r_y_h;
|
if (odd) {
|
buf[0][0] = (buf[0][0] + g_u_s) / 2;
|
buf[0][2] = (buf[0][2] + b_v) / 2;
|
break;
|
}
|
buf[0][0] = g_u_s;
|
buf[0][2] = b_v;
|
break;
|
case V4L2_PIX_FMT_YVYU:
|
buf[0][offset] = r_y_h;
|
if (odd) {
|
buf[0][1] = (buf[0][1] + b_v) / 2;
|
buf[0][3] = (buf[0][3] + g_u_s) / 2;
|
break;
|
}
|
buf[0][1] = b_v;
|
buf[0][3] = g_u_s;
|
break;
|
case V4L2_PIX_FMT_VYUY:
|
buf[0][offset + 1] = r_y_h;
|
if (odd) {
|
buf[0][0] = (buf[0][0] + b_v) / 2;
|
buf[0][2] = (buf[0][2] + g_u_s) / 2;
|
break;
|
}
|
buf[0][0] = b_v;
|
buf[0][2] = g_u_s;
|
break;
|
case V4L2_PIX_FMT_RGB332:
|
buf[0][offset] = (r_y_h << 5) | (g_u_s << 2) | b_v;
|
break;
|
case V4L2_PIX_FMT_YUV565:
|
case V4L2_PIX_FMT_RGB565:
|
buf[0][offset] = (g_u_s << 5) | b_v;
|
buf[0][offset + 1] = (r_y_h << 3) | (g_u_s >> 3);
|
break;
|
case V4L2_PIX_FMT_RGB565X:
|
buf[0][offset] = (r_y_h << 3) | (g_u_s >> 3);
|
buf[0][offset + 1] = (g_u_s << 5) | b_v;
|
break;
|
case V4L2_PIX_FMT_RGB444:
|
case V4L2_PIX_FMT_XRGB444:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_YUV444:
|
case V4L2_PIX_FMT_ARGB444:
|
buf[0][offset] = (g_u_s << 4) | b_v;
|
buf[0][offset + 1] = (alpha & 0xf0) | r_y_h;
|
break;
|
case V4L2_PIX_FMT_RGBX444:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_RGBA444:
|
buf[0][offset] = (b_v << 4) | (alpha >> 4);
|
buf[0][offset + 1] = (r_y_h << 4) | g_u_s;
|
break;
|
case V4L2_PIX_FMT_XBGR444:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_ABGR444:
|
buf[0][offset] = (g_u_s << 4) | r_y_h;
|
buf[0][offset + 1] = (alpha & 0xf0) | b_v;
|
break;
|
case V4L2_PIX_FMT_BGRX444:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_BGRA444:
|
buf[0][offset] = (r_y_h << 4) | (alpha >> 4);
|
buf[0][offset + 1] = (b_v << 4) | g_u_s;
|
break;
|
case V4L2_PIX_FMT_RGB555:
|
case V4L2_PIX_FMT_XRGB555:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_YUV555:
|
case V4L2_PIX_FMT_ARGB555:
|
buf[0][offset] = (g_u_s << 5) | b_v;
|
buf[0][offset + 1] = (alpha & 0x80) | (r_y_h << 2)
|
| (g_u_s >> 3);
|
break;
|
case V4L2_PIX_FMT_RGBX555:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_RGBA555:
|
buf[0][offset] = (g_u_s << 6) | (b_v << 1) |
|
((alpha & 0x80) >> 7);
|
buf[0][offset + 1] = (r_y_h << 3) | (g_u_s >> 2);
|
break;
|
case V4L2_PIX_FMT_XBGR555:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_ABGR555:
|
buf[0][offset] = (g_u_s << 5) | r_y_h;
|
buf[0][offset + 1] = (alpha & 0x80) | (b_v << 2)
|
| (g_u_s >> 3);
|
break;
|
case V4L2_PIX_FMT_BGRX555:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_BGRA555:
|
buf[0][offset] = (g_u_s << 6) | (r_y_h << 1) |
|
((alpha & 0x80) >> 7);
|
buf[0][offset + 1] = (b_v << 3) | (g_u_s >> 2);
|
break;
|
case V4L2_PIX_FMT_RGB555X:
|
case V4L2_PIX_FMT_XRGB555X:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_ARGB555X:
|
buf[0][offset] = (alpha & 0x80) | (r_y_h << 2) | (g_u_s >> 3);
|
buf[0][offset + 1] = (g_u_s << 5) | b_v;
|
break;
|
case V4L2_PIX_FMT_RGB24:
|
case V4L2_PIX_FMT_HSV24:
|
buf[0][offset] = r_y_h;
|
buf[0][offset + 1] = g_u_s;
|
buf[0][offset + 2] = b_v;
|
break;
|
case V4L2_PIX_FMT_BGR24:
|
buf[0][offset] = b_v;
|
buf[0][offset + 1] = g_u_s;
|
buf[0][offset + 2] = r_y_h;
|
break;
|
case V4L2_PIX_FMT_BGR666:
|
buf[0][offset] = (b_v << 2) | (g_u_s >> 4);
|
buf[0][offset + 1] = (g_u_s << 4) | (r_y_h >> 2);
|
buf[0][offset + 2] = r_y_h << 6;
|
buf[0][offset + 3] = 0;
|
break;
|
case V4L2_PIX_FMT_RGB32:
|
case V4L2_PIX_FMT_XRGB32:
|
case V4L2_PIX_FMT_HSV32:
|
case V4L2_PIX_FMT_XYUV32:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_YUV32:
|
case V4L2_PIX_FMT_ARGB32:
|
case V4L2_PIX_FMT_AYUV32:
|
buf[0][offset] = alpha;
|
buf[0][offset + 1] = r_y_h;
|
buf[0][offset + 2] = g_u_s;
|
buf[0][offset + 3] = b_v;
|
break;
|
case V4L2_PIX_FMT_RGBX32:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_RGBA32:
|
buf[0][offset] = r_y_h;
|
buf[0][offset + 1] = g_u_s;
|
buf[0][offset + 2] = b_v;
|
buf[0][offset + 3] = alpha;
|
break;
|
case V4L2_PIX_FMT_BGR32:
|
case V4L2_PIX_FMT_XBGR32:
|
case V4L2_PIX_FMT_VUYX32:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_ABGR32:
|
case V4L2_PIX_FMT_VUYA32:
|
buf[0][offset] = b_v;
|
buf[0][offset + 1] = g_u_s;
|
buf[0][offset + 2] = r_y_h;
|
buf[0][offset + 3] = alpha;
|
break;
|
case V4L2_PIX_FMT_BGRX32:
|
alpha = 0;
|
fallthrough;
|
case V4L2_PIX_FMT_BGRA32:
|
buf[0][offset] = alpha;
|
buf[0][offset + 1] = b_v;
|
buf[0][offset + 2] = g_u_s;
|
buf[0][offset + 3] = r_y_h;
|
break;
|
case V4L2_PIX_FMT_SBGGR8:
|
buf[0][offset] = odd ? g_u_s : b_v;
|
buf[1][offset] = odd ? r_y_h : g_u_s;
|
break;
|
case V4L2_PIX_FMT_SGBRG8:
|
buf[0][offset] = odd ? b_v : g_u_s;
|
buf[1][offset] = odd ? g_u_s : r_y_h;
|
break;
|
case V4L2_PIX_FMT_SGRBG8:
|
buf[0][offset] = odd ? r_y_h : g_u_s;
|
buf[1][offset] = odd ? g_u_s : b_v;
|
break;
|
case V4L2_PIX_FMT_SRGGB8:
|
buf[0][offset] = odd ? g_u_s : r_y_h;
|
buf[1][offset] = odd ? b_v : g_u_s;
|
break;
|
case V4L2_PIX_FMT_SBGGR10:
|
buf[0][offset] = odd ? g_u_s << 2 : b_v << 2;
|
buf[0][offset + 1] = odd ? g_u_s >> 6 : b_v >> 6;
|
buf[1][offset] = odd ? r_y_h << 2 : g_u_s << 2;
|
buf[1][offset + 1] = odd ? r_y_h >> 6 : g_u_s >> 6;
|
buf[0][offset] |= (buf[0][offset] >> 2) & 3;
|
buf[1][offset] |= (buf[1][offset] >> 2) & 3;
|
break;
|
case V4L2_PIX_FMT_SGBRG10:
|
buf[0][offset] = odd ? b_v << 2 : g_u_s << 2;
|
buf[0][offset + 1] = odd ? b_v >> 6 : g_u_s >> 6;
|
buf[1][offset] = odd ? g_u_s << 2 : r_y_h << 2;
|
buf[1][offset + 1] = odd ? g_u_s >> 6 : r_y_h >> 6;
|
buf[0][offset] |= (buf[0][offset] >> 2) & 3;
|
buf[1][offset] |= (buf[1][offset] >> 2) & 3;
|
break;
|
case V4L2_PIX_FMT_SGRBG10:
|
buf[0][offset] = odd ? r_y_h << 2 : g_u_s << 2;
|
buf[0][offset + 1] = odd ? r_y_h >> 6 : g_u_s >> 6;
|
buf[1][offset] = odd ? g_u_s << 2 : b_v << 2;
|
buf[1][offset + 1] = odd ? g_u_s >> 6 : b_v >> 6;
|
buf[0][offset] |= (buf[0][offset] >> 2) & 3;
|
buf[1][offset] |= (buf[1][offset] >> 2) & 3;
|
break;
|
case V4L2_PIX_FMT_SRGGB10:
|
buf[0][offset] = odd ? g_u_s << 2 : r_y_h << 2;
|
buf[0][offset + 1] = odd ? g_u_s >> 6 : r_y_h >> 6;
|
buf[1][offset] = odd ? b_v << 2 : g_u_s << 2;
|
buf[1][offset + 1] = odd ? b_v >> 6 : g_u_s >> 6;
|
buf[0][offset] |= (buf[0][offset] >> 2) & 3;
|
buf[1][offset] |= (buf[1][offset] >> 2) & 3;
|
break;
|
case V4L2_PIX_FMT_SBGGR12:
|
buf[0][offset] = odd ? g_u_s << 4 : b_v << 4;
|
buf[0][offset + 1] = odd ? g_u_s >> 4 : b_v >> 4;
|
buf[1][offset] = odd ? r_y_h << 4 : g_u_s << 4;
|
buf[1][offset + 1] = odd ? r_y_h >> 4 : g_u_s >> 4;
|
buf[0][offset] |= (buf[0][offset] >> 4) & 0xf;
|
buf[1][offset] |= (buf[1][offset] >> 4) & 0xf;
|
break;
|
case V4L2_PIX_FMT_SGBRG12:
|
buf[0][offset] = odd ? b_v << 4 : g_u_s << 4;
|
buf[0][offset + 1] = odd ? b_v >> 4 : g_u_s >> 4;
|
buf[1][offset] = odd ? g_u_s << 4 : r_y_h << 4;
|
buf[1][offset + 1] = odd ? g_u_s >> 4 : r_y_h >> 4;
|
buf[0][offset] |= (buf[0][offset] >> 4) & 0xf;
|
buf[1][offset] |= (buf[1][offset] >> 4) & 0xf;
|
break;
|
case V4L2_PIX_FMT_SGRBG12:
|
buf[0][offset] = odd ? r_y_h << 4 : g_u_s << 4;
|
buf[0][offset + 1] = odd ? r_y_h >> 4 : g_u_s >> 4;
|
buf[1][offset] = odd ? g_u_s << 4 : b_v << 4;
|
buf[1][offset + 1] = odd ? g_u_s >> 4 : b_v >> 4;
|
buf[0][offset] |= (buf[0][offset] >> 4) & 0xf;
|
buf[1][offset] |= (buf[1][offset] >> 4) & 0xf;
|
break;
|
case V4L2_PIX_FMT_SRGGB12:
|
buf[0][offset] = odd ? g_u_s << 4 : r_y_h << 4;
|
buf[0][offset + 1] = odd ? g_u_s >> 4 : r_y_h >> 4;
|
buf[1][offset] = odd ? b_v << 4 : g_u_s << 4;
|
buf[1][offset + 1] = odd ? b_v >> 4 : g_u_s >> 4;
|
buf[0][offset] |= (buf[0][offset] >> 4) & 0xf;
|
buf[1][offset] |= (buf[1][offset] >> 4) & 0xf;
|
break;
|
case V4L2_PIX_FMT_SBGGR16:
|
buf[0][offset] = buf[0][offset + 1] = odd ? g_u_s : b_v;
|
buf[1][offset] = buf[1][offset + 1] = odd ? r_y_h : g_u_s;
|
break;
|
case V4L2_PIX_FMT_SGBRG16:
|
buf[0][offset] = buf[0][offset + 1] = odd ? b_v : g_u_s;
|
buf[1][offset] = buf[1][offset + 1] = odd ? g_u_s : r_y_h;
|
break;
|
case V4L2_PIX_FMT_SGRBG16:
|
buf[0][offset] = buf[0][offset + 1] = odd ? r_y_h : g_u_s;
|
buf[1][offset] = buf[1][offset + 1] = odd ? g_u_s : b_v;
|
break;
|
case V4L2_PIX_FMT_SRGGB16:
|
buf[0][offset] = buf[0][offset + 1] = odd ? g_u_s : r_y_h;
|
buf[1][offset] = buf[1][offset + 1] = odd ? b_v : g_u_s;
|
break;
|
}
|
}
|
|
unsigned tpg_g_interleaved_plane(const struct tpg_data *tpg, unsigned buf_line)
|
{
|
switch (tpg->fourcc) {
|
case V4L2_PIX_FMT_SBGGR8:
|
case V4L2_PIX_FMT_SGBRG8:
|
case V4L2_PIX_FMT_SGRBG8:
|
case V4L2_PIX_FMT_SRGGB8:
|
case V4L2_PIX_FMT_SBGGR10:
|
case V4L2_PIX_FMT_SGBRG10:
|
case V4L2_PIX_FMT_SGRBG10:
|
case V4L2_PIX_FMT_SRGGB10:
|
case V4L2_PIX_FMT_SBGGR12:
|
case V4L2_PIX_FMT_SGBRG12:
|
case V4L2_PIX_FMT_SGRBG12:
|
case V4L2_PIX_FMT_SRGGB12:
|
case V4L2_PIX_FMT_SBGGR16:
|
case V4L2_PIX_FMT_SGBRG16:
|
case V4L2_PIX_FMT_SGRBG16:
|
case V4L2_PIX_FMT_SRGGB16:
|
return buf_line & 1;
|
default:
|
return 0;
|
}
|
}
|
EXPORT_SYMBOL_GPL(tpg_g_interleaved_plane);
|
|
/* Return how many pattern lines are used by the current pattern. */
|
static unsigned tpg_get_pat_lines(const struct tpg_data *tpg)
|
{
|
switch (tpg->pattern) {
|
case TPG_PAT_CHECKERS_16X16:
|
case TPG_PAT_CHECKERS_2X2:
|
case TPG_PAT_CHECKERS_1X1:
|
case TPG_PAT_COLOR_CHECKERS_2X2:
|
case TPG_PAT_COLOR_CHECKERS_1X1:
|
case TPG_PAT_ALTERNATING_HLINES:
|
case TPG_PAT_CROSS_1_PIXEL:
|
case TPG_PAT_CROSS_2_PIXELS:
|
case TPG_PAT_CROSS_10_PIXELS:
|
return 2;
|
case TPG_PAT_100_COLORSQUARES:
|
case TPG_PAT_100_HCOLORBAR:
|
return 8;
|
default:
|
return 1;
|
}
|
}
|
|
/* Which pattern line should be used for the given frame line. */
|
static unsigned tpg_get_pat_line(const struct tpg_data *tpg, unsigned line)
|
{
|
switch (tpg->pattern) {
|
case TPG_PAT_CHECKERS_16X16:
|
return (line >> 4) & 1;
|
case TPG_PAT_CHECKERS_1X1:
|
case TPG_PAT_COLOR_CHECKERS_1X1:
|
case TPG_PAT_ALTERNATING_HLINES:
|
return line & 1;
|
case TPG_PAT_CHECKERS_2X2:
|
case TPG_PAT_COLOR_CHECKERS_2X2:
|
return (line & 2) >> 1;
|
case TPG_PAT_100_COLORSQUARES:
|
case TPG_PAT_100_HCOLORBAR:
|
return (line * 8) / tpg->src_height;
|
case TPG_PAT_CROSS_1_PIXEL:
|
return line == tpg->src_height / 2;
|
case TPG_PAT_CROSS_2_PIXELS:
|
return (line + 1) / 2 == tpg->src_height / 4;
|
case TPG_PAT_CROSS_10_PIXELS:
|
return (line + 10) / 20 == tpg->src_height / 40;
|
default:
|
return 0;
|
}
|
}
|
|
/*
|
* 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)
|
{
|
/* Maximum number of bars are TPG_COLOR_MAX - otherwise, the input print code
|
should be modified */
|
static const enum tpg_color bars[3][8] = {
|
/* Standard ITU-R 75% color bar sequence */
|
{ TPG_COLOR_CSC_WHITE, TPG_COLOR_75_YELLOW,
|
TPG_COLOR_75_CYAN, TPG_COLOR_75_GREEN,
|
TPG_COLOR_75_MAGENTA, TPG_COLOR_75_RED,
|
TPG_COLOR_75_BLUE, TPG_COLOR_100_BLACK, },
|
/* Standard ITU-R 100% color bar sequence */
|
{ TPG_COLOR_100_WHITE, TPG_COLOR_100_YELLOW,
|
TPG_COLOR_100_CYAN, TPG_COLOR_100_GREEN,
|
TPG_COLOR_100_MAGENTA, TPG_COLOR_100_RED,
|
TPG_COLOR_100_BLUE, TPG_COLOR_100_BLACK, },
|
/* Color bar sequence suitable to test CSC */
|
{ TPG_COLOR_CSC_WHITE, TPG_COLOR_CSC_YELLOW,
|
TPG_COLOR_CSC_CYAN, TPG_COLOR_CSC_GREEN,
|
TPG_COLOR_CSC_MAGENTA, TPG_COLOR_CSC_RED,
|
TPG_COLOR_CSC_BLUE, TPG_COLOR_CSC_BLACK, },
|
};
|
|
switch (tpg->pattern) {
|
case TPG_PAT_75_COLORBAR:
|
case TPG_PAT_100_COLORBAR:
|
case TPG_PAT_CSC_COLORBAR:
|
return bars[tpg->pattern][((x * 8) / tpg->src_width) % 8];
|
case TPG_PAT_100_COLORSQUARES:
|
return bars[1][(pat_line + (x * 8) / tpg->src_width) % 8];
|
case TPG_PAT_100_HCOLORBAR:
|
return bars[1][pat_line];
|
case TPG_PAT_BLACK:
|
return TPG_COLOR_100_BLACK;
|
case TPG_PAT_WHITE:
|
return TPG_COLOR_100_WHITE;
|
case TPG_PAT_RED:
|
return TPG_COLOR_100_RED;
|
case TPG_PAT_GREEN:
|
return TPG_COLOR_100_GREEN;
|
case TPG_PAT_BLUE:
|
return TPG_COLOR_100_BLUE;
|
case TPG_PAT_CHECKERS_16X16:
|
return (((x >> 4) & 1) ^ (pat_line & 1)) ?
|
TPG_COLOR_100_BLACK : TPG_COLOR_100_WHITE;
|
case TPG_PAT_CHECKERS_1X1:
|
return ((x & 1) ^ (pat_line & 1)) ?
|
TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
|
case TPG_PAT_COLOR_CHECKERS_1X1:
|
return ((x & 1) ^ (pat_line & 1)) ?
|
TPG_COLOR_100_RED : TPG_COLOR_100_BLUE;
|
case TPG_PAT_CHECKERS_2X2:
|
return (((x >> 1) & 1) ^ (pat_line & 1)) ?
|
TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
|
case TPG_PAT_COLOR_CHECKERS_2X2:
|
return (((x >> 1) & 1) ^ (pat_line & 1)) ?
|
TPG_COLOR_100_RED : TPG_COLOR_100_BLUE;
|
case TPG_PAT_ALTERNATING_HLINES:
|
return pat_line ? TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
|
case TPG_PAT_ALTERNATING_VLINES:
|
return (x & 1) ? TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
|
case TPG_PAT_CROSS_1_PIXEL:
|
if (pat_line || (x % tpg->src_width) == tpg->src_width / 2)
|
return TPG_COLOR_100_BLACK;
|
return TPG_COLOR_100_WHITE;
|
case TPG_PAT_CROSS_2_PIXELS:
|
if (pat_line || ((x % tpg->src_width) + 1) / 2 == tpg->src_width / 4)
|
return TPG_COLOR_100_BLACK;
|
return TPG_COLOR_100_WHITE;
|
case TPG_PAT_CROSS_10_PIXELS:
|
if (pat_line || ((x % tpg->src_width) + 10) / 20 == tpg->src_width / 40)
|
return TPG_COLOR_100_BLACK;
|
return TPG_COLOR_100_WHITE;
|
case TPG_PAT_GRAY_RAMP:
|
return TPG_COLOR_RAMP + ((x % tpg->src_width) * 256) / tpg->src_width;
|
default:
|
return TPG_COLOR_100_RED;
|
}
|
}
|
|
/*
|
* 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)
|
{
|
unsigned w = tpg->src_width;
|
unsigned h = tpg->src_height;
|
unsigned sq_w, sq_h;
|
|
sq_w = (w * 2 / 5) & ~1;
|
if (((w - sq_w) / 2) & 1)
|
sq_w += 2;
|
sq_h = sq_w;
|
tpg->square.width = sq_w;
|
if (tpg->vid_aspect == TPG_VIDEO_ASPECT_16X9_ANAMORPHIC) {
|
unsigned ana_sq_w = (sq_w / 4) * 3;
|
|
if (((w - ana_sq_w) / 2) & 1)
|
ana_sq_w += 2;
|
tpg->square.width = ana_sq_w;
|
}
|
tpg->square.left = (w - tpg->square.width) / 2;
|
if (tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC)
|
sq_h = sq_w * 10 / 11;
|
else if (tpg->pix_aspect == TPG_PIXEL_ASPECT_PAL)
|
sq_h = sq_w * 59 / 54;
|
tpg->square.height = sq_h;
|
tpg->square.top = (h - sq_h) / 2;
|
tpg->border.left = 0;
|
tpg->border.width = w;
|
tpg->border.top = 0;
|
tpg->border.height = h;
|
switch (tpg->vid_aspect) {
|
case TPG_VIDEO_ASPECT_4X3:
|
if (tpg->pix_aspect)
|
return;
|
if (3 * w >= 4 * h) {
|
tpg->border.width = ((4 * h) / 3) & ~1;
|
if (((w - tpg->border.width) / 2) & ~1)
|
tpg->border.width -= 2;
|
tpg->border.left = (w - tpg->border.width) / 2;
|
break;
|
}
|
tpg->border.height = ((3 * w) / 4) & ~1;
|
tpg->border.top = (h - tpg->border.height) / 2;
|
break;
|
case TPG_VIDEO_ASPECT_14X9_CENTRE:
|
if (tpg->pix_aspect) {
|
tpg->border.height = tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC ? 420 : 506;
|
tpg->border.top = (h - tpg->border.height) / 2;
|
break;
|
}
|
if (9 * w >= 14 * h) {
|
tpg->border.width = ((14 * h) / 9) & ~1;
|
if (((w - tpg->border.width) / 2) & ~1)
|
tpg->border.width -= 2;
|
tpg->border.left = (w - tpg->border.width) / 2;
|
break;
|
}
|
tpg->border.height = ((9 * w) / 14) & ~1;
|
tpg->border.top = (h - tpg->border.height) / 2;
|
break;
|
case TPG_VIDEO_ASPECT_16X9_CENTRE:
|
if (tpg->pix_aspect) {
|
tpg->border.height = tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC ? 368 : 442;
|
tpg->border.top = (h - tpg->border.height) / 2;
|
break;
|
}
|
if (9 * w >= 16 * h) {
|
tpg->border.width = ((16 * h) / 9) & ~1;
|
if (((w - tpg->border.width) / 2) & ~1)
|
tpg->border.width -= 2;
|
tpg->border.left = (w - tpg->border.width) / 2;
|
break;
|
}
|
tpg->border.height = ((9 * w) / 16) & ~1;
|
tpg->border.top = (h - tpg->border.height) / 2;
|
break;
|
default:
|
break;
|
}
|
}
|
|
static void tpg_precalculate_line(struct tpg_data *tpg)
|
{
|
enum tpg_color contrast;
|
u8 pix[TPG_MAX_PLANES][8];
|
unsigned pat;
|
unsigned p;
|
unsigned x;
|
|
switch (tpg->pattern) {
|
case TPG_PAT_GREEN:
|
contrast = TPG_COLOR_100_RED;
|
break;
|
case TPG_PAT_CSC_COLORBAR:
|
contrast = TPG_COLOR_CSC_GREEN;
|
break;
|
default:
|
contrast = TPG_COLOR_100_GREEN;
|
break;
|
}
|
|
for (pat = 0; pat < tpg_get_pat_lines(tpg); pat++) {
|
/* Coarse scaling with Bresenham */
|
unsigned int_part = tpg->src_width / tpg->scaled_width;
|
unsigned fract_part = tpg->src_width % tpg->scaled_width;
|
unsigned src_x = 0;
|
unsigned error = 0;
|
|
for (x = 0; x < tpg->scaled_width * 2; x += 2) {
|
unsigned real_x = src_x;
|
enum tpg_color color1, color2;
|
|
real_x = tpg->hflip ? tpg->src_width * 2 - real_x - 2 : real_x;
|
color1 = tpg_get_color(tpg, pat, real_x);
|
|
src_x += int_part;
|
error += fract_part;
|
if (error >= tpg->scaled_width) {
|
error -= tpg->scaled_width;
|
src_x++;
|
}
|
|
real_x = src_x;
|
real_x = tpg->hflip ? tpg->src_width * 2 - real_x - 2 : real_x;
|
color2 = tpg_get_color(tpg, pat, real_x);
|
|
src_x += int_part;
|
error += fract_part;
|
if (error >= tpg->scaled_width) {
|
error -= tpg->scaled_width;
|
src_x++;
|
}
|
|
gen_twopix(tpg, pix, tpg->hflip ? color2 : color1, 0);
|
gen_twopix(tpg, pix, tpg->hflip ? color1 : color2, 1);
|
for (p = 0; p < tpg->planes; p++) {
|
unsigned twopixsize = tpg->twopixelsize[p];
|
unsigned hdiv = tpg->hdownsampling[p];
|
u8 *pos = tpg->lines[pat][p] + tpg_hdiv(tpg, p, x);
|
|
memcpy(pos, pix[p], twopixsize / hdiv);
|
}
|
}
|
}
|
|
if (tpg->vdownsampling[tpg->planes - 1] > 1) {
|
unsigned pat_lines = tpg_get_pat_lines(tpg);
|
|
for (pat = 0; pat < pat_lines; pat++) {
|
unsigned next_pat = (pat + 1) % pat_lines;
|
|
for (p = 1; p < tpg->planes; p++) {
|
unsigned w = tpg_hdiv(tpg, p, tpg->scaled_width * 2);
|
u8 *pos1 = tpg->lines[pat][p];
|
u8 *pos2 = tpg->lines[next_pat][p];
|
u8 *dest = tpg->downsampled_lines[pat][p];
|
|
for (x = 0; x < w; x++, pos1++, pos2++, dest++)
|
*dest = ((u16)*pos1 + (u16)*pos2) / 2;
|
}
|
}
|
}
|
|
gen_twopix(tpg, pix, contrast, 0);
|
gen_twopix(tpg, pix, contrast, 1);
|
for (p = 0; p < tpg->planes; p++) {
|
unsigned twopixsize = tpg->twopixelsize[p];
|
u8 *pos = tpg->contrast_line[p];
|
|
for (x = 0; x < tpg->scaled_width; x += 2, pos += twopixsize)
|
memcpy(pos, pix[p], twopixsize);
|
}
|
|
gen_twopix(tpg, pix, TPG_COLOR_100_BLACK, 0);
|
gen_twopix(tpg, pix, TPG_COLOR_100_BLACK, 1);
|
for (p = 0; p < tpg->planes; p++) {
|
unsigned twopixsize = tpg->twopixelsize[p];
|
u8 *pos = tpg->black_line[p];
|
|
for (x = 0; x < tpg->scaled_width; x += 2, pos += twopixsize)
|
memcpy(pos, pix[p], twopixsize);
|
}
|
|
for (x = 0; x < tpg->scaled_width * 2; x += 2) {
|
gen_twopix(tpg, pix, TPG_COLOR_RANDOM, 0);
|
gen_twopix(tpg, pix, TPG_COLOR_RANDOM, 1);
|
for (p = 0; p < tpg->planes; p++) {
|
unsigned twopixsize = tpg->twopixelsize[p];
|
u8 *pos = tpg->random_line[p] + x * twopixsize / 2;
|
|
memcpy(pos, pix[p], twopixsize);
|
}
|
}
|
|
gen_twopix(tpg, tpg->textbg, TPG_COLOR_TEXTBG, 0);
|
gen_twopix(tpg, tpg->textbg, TPG_COLOR_TEXTBG, 1);
|
gen_twopix(tpg, tpg->textfg, TPG_COLOR_TEXTFG, 0);
|
gen_twopix(tpg, tpg->textfg, TPG_COLOR_TEXTFG, 1);
|
}
|
|
/* need this to do rgb24 rendering */
|
typedef struct { u16 __; u8 _; } __packed x24;
|
|
#define PRINTSTR(PIXTYPE) do { \
|
unsigned vdiv = tpg->vdownsampling[p]; \
|
unsigned hdiv = tpg->hdownsampling[p]; \
|
int line; \
|
PIXTYPE fg; \
|
PIXTYPE bg; \
|
memcpy(&fg, tpg->textfg[p], sizeof(PIXTYPE)); \
|
memcpy(&bg, tpg->textbg[p], sizeof(PIXTYPE)); \
|
\
|
for (line = first; line < 16; line += vdiv * step) { \
|
int l = tpg->vflip ? 15 - line : line; \
|
PIXTYPE *pos = (PIXTYPE *)(basep[p][(line / vdiv) & 1] + \
|
((y * step + l) / (vdiv * div)) * tpg->bytesperline[p] + \
|
(x / hdiv) * sizeof(PIXTYPE)); \
|
unsigned s; \
|
\
|
for (s = 0; s < len; s++) { \
|
u8 chr = font8x16[(u8)text[s] * 16 + line]; \
|
\
|
if (hdiv == 2 && tpg->hflip) { \
|
pos[3] = (chr & (0x01 << 6) ? fg : bg); \
|
pos[2] = (chr & (0x01 << 4) ? fg : bg); \
|
pos[1] = (chr & (0x01 << 2) ? fg : bg); \
|
pos[0] = (chr & (0x01 << 0) ? fg : bg); \
|
} else if (hdiv == 2) { \
|
pos[0] = (chr & (0x01 << 7) ? fg : bg); \
|
pos[1] = (chr & (0x01 << 5) ? fg : bg); \
|
pos[2] = (chr & (0x01 << 3) ? fg : bg); \
|
pos[3] = (chr & (0x01 << 1) ? fg : bg); \
|
} else if (tpg->hflip) { \
|
pos[7] = (chr & (0x01 << 7) ? fg : bg); \
|
pos[6] = (chr & (0x01 << 6) ? fg : bg); \
|
pos[5] = (chr & (0x01 << 5) ? fg : bg); \
|
pos[4] = (chr & (0x01 << 4) ? fg : bg); \
|
pos[3] = (chr & (0x01 << 3) ? fg : bg); \
|
pos[2] = (chr & (0x01 << 2) ? fg : bg); \
|
pos[1] = (chr & (0x01 << 1) ? fg : bg); \
|
pos[0] = (chr & (0x01 << 0) ? fg : bg); \
|
} else { \
|
pos[0] = (chr & (0x01 << 7) ? fg : bg); \
|
pos[1] = (chr & (0x01 << 6) ? fg : bg); \
|
pos[2] = (chr & (0x01 << 5) ? fg : bg); \
|
pos[3] = (chr & (0x01 << 4) ? fg : bg); \
|
pos[4] = (chr & (0x01 << 3) ? fg : bg); \
|
pos[5] = (chr & (0x01 << 2) ? fg : bg); \
|
pos[6] = (chr & (0x01 << 1) ? fg : bg); \
|
pos[7] = (chr & (0x01 << 0) ? fg : bg); \
|
} \
|
\
|
pos += (tpg->hflip ? -8 : 8) / (int)hdiv; \
|
} \
|
} \
|
} while (0)
|
|
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)
|
{
|
PRINTSTR(u8);
|
}
|
|
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)
|
{
|
PRINTSTR(u16);
|
}
|
|
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)
|
{
|
PRINTSTR(x24);
|
}
|
|
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)
|
{
|
PRINTSTR(u32);
|
}
|
|
void tpg_gen_text(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
|
int y, int x, const char *text)
|
{
|
unsigned step = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1;
|
unsigned div = step;
|
unsigned first = 0;
|
unsigned len;
|
unsigned p;
|
|
if (font8x16 == NULL || basep == NULL || text == NULL)
|
return;
|
|
len = strlen(text);
|
|
/* Checks if it is possible to show string */
|
if (y + 16 >= tpg->compose.height || x + 8 >= tpg->compose.width)
|
return;
|
|
if (len > (tpg->compose.width - x) / 8)
|
len = (tpg->compose.width - x) / 8;
|
if (tpg->vflip)
|
y = tpg->compose.height - y - 16;
|
if (tpg->hflip)
|
x = tpg->compose.width - x - 8;
|
y += tpg->compose.top;
|
x += tpg->compose.left;
|
if (tpg->field == V4L2_FIELD_BOTTOM)
|
first = 1;
|
else if (tpg->field == V4L2_FIELD_SEQ_TB || tpg->field == V4L2_FIELD_SEQ_BT)
|
div = 2;
|
|
for (p = 0; p < tpg->planes; p++) {
|
/* Print text */
|
switch (tpg->twopixelsize[p]) {
|
case 2:
|
tpg_print_str_2(tpg, basep, p, first, div, step, y, x,
|
text, len);
|
break;
|
case 4:
|
tpg_print_str_4(tpg, basep, p, first, div, step, y, x,
|
text, len);
|
break;
|
case 6:
|
tpg_print_str_6(tpg, basep, p, first, div, step, y, x,
|
text, len);
|
break;
|
case 8:
|
tpg_print_str_8(tpg, basep, p, first, div, step, y, x,
|
text, len);
|
break;
|
}
|
}
|
}
|
EXPORT_SYMBOL_GPL(tpg_gen_text);
|
|
const char *tpg_g_color_order(const struct tpg_data *tpg)
|
{
|
switch (tpg->pattern) {
|
case TPG_PAT_75_COLORBAR:
|
case TPG_PAT_100_COLORBAR:
|
case TPG_PAT_CSC_COLORBAR:
|
case TPG_PAT_100_HCOLORBAR:
|
return "White, yellow, cyan, green, magenta, red, blue, black";
|
case TPG_PAT_BLACK:
|
return "Black";
|
case TPG_PAT_WHITE:
|
return "White";
|
case TPG_PAT_RED:
|
return "Red";
|
case TPG_PAT_GREEN:
|
return "Green";
|
case TPG_PAT_BLUE:
|
return "Blue";
|
default:
|
return NULL;
|
}
|
}
|
EXPORT_SYMBOL_GPL(tpg_g_color_order);
|
|
void tpg_update_mv_step(struct tpg_data *tpg)
|
{
|
int factor = tpg->mv_hor_mode > TPG_MOVE_NONE ? -1 : 1;
|
|
if (tpg->hflip)
|
factor = -factor;
|
switch (tpg->mv_hor_mode) {
|
case TPG_MOVE_NEG_FAST:
|
case TPG_MOVE_POS_FAST:
|
tpg->mv_hor_step = ((tpg->src_width + 319) / 320) * 4;
|
break;
|
case TPG_MOVE_NEG:
|
case TPG_MOVE_POS:
|
tpg->mv_hor_step = ((tpg->src_width + 639) / 640) * 4;
|
break;
|
case TPG_MOVE_NEG_SLOW:
|
case TPG_MOVE_POS_SLOW:
|
tpg->mv_hor_step = 2;
|
break;
|
case TPG_MOVE_NONE:
|
tpg->mv_hor_step = 0;
|
break;
|
}
|
if (factor < 0)
|
tpg->mv_hor_step = tpg->src_width - tpg->mv_hor_step;
|
|
factor = tpg->mv_vert_mode > TPG_MOVE_NONE ? -1 : 1;
|
switch (tpg->mv_vert_mode) {
|
case TPG_MOVE_NEG_FAST:
|
case TPG_MOVE_POS_FAST:
|
tpg->mv_vert_step = ((tpg->src_width + 319) / 320) * 4;
|
break;
|
case TPG_MOVE_NEG:
|
case TPG_MOVE_POS:
|
tpg->mv_vert_step = ((tpg->src_width + 639) / 640) * 4;
|
break;
|
case TPG_MOVE_NEG_SLOW:
|
case TPG_MOVE_POS_SLOW:
|
tpg->mv_vert_step = 1;
|
break;
|
case TPG_MOVE_NONE:
|
tpg->mv_vert_step = 0;
|
break;
|
}
|
if (factor < 0)
|
tpg->mv_vert_step = tpg->src_height - tpg->mv_vert_step;
|
}
|
EXPORT_SYMBOL_GPL(tpg_update_mv_step);
|
|
/* 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)
|
{
|
switch (field) {
|
case V4L2_FIELD_TOP:
|
return tpg->crop.top + src_y * 2;
|
case V4L2_FIELD_BOTTOM:
|
return tpg->crop.top + src_y * 2 + 1;
|
default:
|
return src_y + tpg->crop.top;
|
}
|
}
|
|
/*
|
* 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)
|
{
|
y += tpg->compose.top;
|
switch (field) {
|
case V4L2_FIELD_SEQ_TB:
|
if (y & 1)
|
return tpg->buf_height / 2 + y / 2;
|
return y / 2;
|
case V4L2_FIELD_SEQ_BT:
|
if (y & 1)
|
return y / 2;
|
return tpg->buf_height / 2 + y / 2;
|
default:
|
return y;
|
}
|
}
|
|
static void tpg_recalc(struct tpg_data *tpg)
|
{
|
if (tpg->recalc_colors) {
|
tpg->recalc_colors = false;
|
tpg->recalc_lines = true;
|
tpg->real_xfer_func = tpg->xfer_func;
|
tpg->real_ycbcr_enc = tpg->ycbcr_enc;
|
tpg->real_hsv_enc = tpg->hsv_enc;
|
tpg->real_quantization = tpg->quantization;
|
|
if (tpg->xfer_func == V4L2_XFER_FUNC_DEFAULT)
|
tpg->real_xfer_func =
|
V4L2_MAP_XFER_FUNC_DEFAULT(tpg->colorspace);
|
|
if (tpg->ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
|
tpg->real_ycbcr_enc =
|
V4L2_MAP_YCBCR_ENC_DEFAULT(tpg->colorspace);
|
|
if (tpg->quantization == V4L2_QUANTIZATION_DEFAULT)
|
tpg->real_quantization =
|
V4L2_MAP_QUANTIZATION_DEFAULT(
|
tpg->color_enc != TGP_COLOR_ENC_YCBCR,
|
tpg->colorspace, tpg->real_ycbcr_enc);
|
|
tpg_precalculate_colors(tpg);
|
}
|
if (tpg->recalc_square_border) {
|
tpg->recalc_square_border = false;
|
tpg_calculate_square_border(tpg);
|
}
|
if (tpg->recalc_lines) {
|
tpg->recalc_lines = false;
|
tpg_precalculate_line(tpg);
|
}
|
}
|
|
void tpg_calc_text_basep(struct tpg_data *tpg,
|
u8 *basep[TPG_MAX_PLANES][2], unsigned p, u8 *vbuf)
|
{
|
unsigned stride = tpg->bytesperline[p];
|
unsigned h = tpg->buf_height;
|
|
tpg_recalc(tpg);
|
|
basep[p][0] = vbuf;
|
basep[p][1] = vbuf;
|
h /= tpg->vdownsampling[p];
|
if (tpg->field == V4L2_FIELD_SEQ_TB)
|
basep[p][1] += h * stride / 2;
|
else if (tpg->field == V4L2_FIELD_SEQ_BT)
|
basep[p][0] += h * stride / 2;
|
if (p == 0 && tpg->interleaved)
|
tpg_calc_text_basep(tpg, basep, 1, vbuf);
|
}
|
EXPORT_SYMBOL_GPL(tpg_calc_text_basep);
|
|
static int tpg_pattern_avg(const struct tpg_data *tpg,
|
unsigned pat1, unsigned pat2)
|
{
|
unsigned pat_lines = tpg_get_pat_lines(tpg);
|
|
if (pat1 == (pat2 + 1) % pat_lines)
|
return pat2;
|
if (pat2 == (pat1 + 1) % pat_lines)
|
return pat1;
|
return -1;
|
}
|
|
static const char *tpg_color_enc_str(enum tgp_color_enc
|
color_enc)
|
{
|
switch (color_enc) {
|
case TGP_COLOR_ENC_HSV:
|
return "HSV";
|
case TGP_COLOR_ENC_YCBCR:
|
return "Y'CbCr";
|
case TGP_COLOR_ENC_LUMA:
|
return "Luma";
|
case TGP_COLOR_ENC_RGB:
|
default:
|
return "R'G'B";
|
|
}
|
}
|
|
void tpg_log_status(struct tpg_data *tpg)
|
{
|
pr_info("tpg source WxH: %ux%u (%s)\n",
|
tpg->src_width, tpg->src_height,
|
tpg_color_enc_str(tpg->color_enc));
|
pr_info("tpg field: %u\n", tpg->field);
|
pr_info("tpg crop: %ux%u@%dx%d\n", tpg->crop.width, tpg->crop.height,
|
tpg->crop.left, tpg->crop.top);
|
pr_info("tpg compose: %ux%u@%dx%d\n", tpg->compose.width, tpg->compose.height,
|
tpg->compose.left, tpg->compose.top);
|
pr_info("tpg colorspace: %d\n", tpg->colorspace);
|
pr_info("tpg transfer function: %d/%d\n", tpg->xfer_func, tpg->real_xfer_func);
|
if (tpg->color_enc == TGP_COLOR_ENC_HSV)
|
pr_info("tpg HSV encoding: %d/%d\n",
|
tpg->hsv_enc, tpg->real_hsv_enc);
|
else if (tpg->color_enc == TGP_COLOR_ENC_YCBCR)
|
pr_info("tpg Y'CbCr encoding: %d/%d\n",
|
tpg->ycbcr_enc, tpg->real_ycbcr_enc);
|
pr_info("tpg quantization: %d/%d\n", tpg->quantization, tpg->real_quantization);
|
pr_info("tpg RGB range: %d/%d\n", tpg->rgb_range, tpg->real_rgb_range);
|
}
|
EXPORT_SYMBOL_GPL(tpg_log_status);
|
|
/*
|
* 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 {
|
/* common data */
|
bool is_tv;
|
bool is_60hz;
|
unsigned twopixsize;
|
unsigned img_width;
|
unsigned stride;
|
unsigned hmax;
|
unsigned frame_line;
|
unsigned frame_line_next;
|
|
/* test pattern */
|
unsigned mv_hor_old;
|
unsigned mv_hor_new;
|
unsigned mv_vert_old;
|
unsigned mv_vert_new;
|
|
/* extras */
|
unsigned wss_width;
|
unsigned wss_random_offset;
|
unsigned sav_eav_f;
|
unsigned left_pillar_width;
|
unsigned right_pillar_start;
|
};
|
|
static void tpg_fill_params_pattern(const struct tpg_data *tpg, unsigned p,
|
struct tpg_draw_params *params)
|
{
|
params->mv_hor_old =
|
tpg_hscale_div(tpg, p, tpg->mv_hor_count % tpg->src_width);
|
params->mv_hor_new =
|
tpg_hscale_div(tpg, p, (tpg->mv_hor_count + tpg->mv_hor_step) %
|
tpg->src_width);
|
params->mv_vert_old = tpg->mv_vert_count % tpg->src_height;
|
params->mv_vert_new =
|
(tpg->mv_vert_count + tpg->mv_vert_step) % tpg->src_height;
|
}
|
|
static void tpg_fill_params_extras(const struct tpg_data *tpg,
|
unsigned p,
|
struct tpg_draw_params *params)
|
{
|
unsigned left_pillar_width = 0;
|
unsigned right_pillar_start = params->img_width;
|
|
params->wss_width = tpg->crop.left < tpg->src_width / 2 ?
|
tpg->src_width / 2 - tpg->crop.left : 0;
|
if (params->wss_width > tpg->crop.width)
|
params->wss_width = tpg->crop.width;
|
params->wss_width = tpg_hscale_div(tpg, p, params->wss_width);
|
params->wss_random_offset =
|
params->twopixsize * prandom_u32_max(tpg->src_width / 2);
|
|
if (tpg->crop.left < tpg->border.left) {
|
left_pillar_width = tpg->border.left - tpg->crop.left;
|
if (left_pillar_width > tpg->crop.width)
|
left_pillar_width = tpg->crop.width;
|
left_pillar_width = tpg_hscale_div(tpg, p, left_pillar_width);
|
}
|
params->left_pillar_width = left_pillar_width;
|
|
if (tpg->crop.left + tpg->crop.width >
|
tpg->border.left + tpg->border.width) {
|
right_pillar_start =
|
tpg->border.left + tpg->border.width - tpg->crop.left;
|
right_pillar_start =
|
tpg_hscale_div(tpg, p, right_pillar_start);
|
if (right_pillar_start > params->img_width)
|
right_pillar_start = params->img_width;
|
}
|
params->right_pillar_start = right_pillar_start;
|
|
params->sav_eav_f = tpg->field ==
|
(params->is_60hz ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
|
}
|
|
static void tpg_fill_plane_extras(const struct tpg_data *tpg,
|
const struct tpg_draw_params *params,
|
unsigned p, unsigned h, u8 *vbuf)
|
{
|
unsigned twopixsize = params->twopixsize;
|
unsigned img_width = params->img_width;
|
unsigned frame_line = params->frame_line;
|
const struct v4l2_rect *sq = &tpg->square;
|
const struct v4l2_rect *b = &tpg->border;
|
const struct v4l2_rect *c = &tpg->crop;
|
|
if (params->is_tv && !params->is_60hz &&
|
frame_line == 0 && params->wss_width) {
|
/*
|
* Replace the first half of the top line of a 50 Hz frame
|
* with random data to simulate a WSS signal.
|
*/
|
u8 *wss = tpg->random_line[p] + params->wss_random_offset;
|
|
memcpy(vbuf, wss, params->wss_width);
|
}
|
|
if (tpg->show_border && frame_line >= b->top &&
|
frame_line < b->top + b->height) {
|
unsigned bottom = b->top + b->height - 1;
|
unsigned left = params->left_pillar_width;
|
unsigned right = params->right_pillar_start;
|
|
if (frame_line == b->top || frame_line == b->top + 1 ||
|
frame_line == bottom || frame_line == bottom - 1) {
|
memcpy(vbuf + left, tpg->contrast_line[p],
|
right - left);
|
} else {
|
if (b->left >= c->left &&
|
b->left < c->left + c->width)
|
memcpy(vbuf + left,
|
tpg->contrast_line[p], twopixsize);
|
if (b->left + b->width > c->left &&
|
b->left + b->width <= c->left + c->width)
|
memcpy(vbuf + right - twopixsize,
|
tpg->contrast_line[p], twopixsize);
|
}
|
}
|
if (tpg->qual != TPG_QUAL_NOISE && frame_line >= b->top &&
|
frame_line < b->top + b->height) {
|
memcpy(vbuf, tpg->black_line[p], params->left_pillar_width);
|
memcpy(vbuf + params->right_pillar_start, tpg->black_line[p],
|
img_width - params->right_pillar_start);
|
}
|
if (tpg->show_square && frame_line >= sq->top &&
|
frame_line < sq->top + sq->height &&
|
sq->left < c->left + c->width &&
|
sq->left + sq->width >= c->left) {
|
unsigned left = sq->left;
|
unsigned width = sq->width;
|
|
if (c->left > left) {
|
width -= c->left - left;
|
left = c->left;
|
}
|
if (c->left + c->width < left + width)
|
width -= left + width - c->left - c->width;
|
left -= c->left;
|
left = tpg_hscale_div(tpg, p, left);
|
width = tpg_hscale_div(tpg, p, width);
|
memcpy(vbuf + left, tpg->contrast_line[p], width);
|
}
|
if (tpg->insert_sav) {
|
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width / 3);
|
u8 *p = vbuf + offset;
|
unsigned vact = 0, hact = 0;
|
|
p[0] = 0xff;
|
p[1] = 0;
|
p[2] = 0;
|
p[3] = 0x80 | (params->sav_eav_f << 6) |
|
(vact << 5) | (hact << 4) |
|
((hact ^ vact) << 3) |
|
((hact ^ params->sav_eav_f) << 2) |
|
((params->sav_eav_f ^ vact) << 1) |
|
(hact ^ vact ^ params->sav_eav_f);
|
}
|
if (tpg->insert_eav) {
|
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width * 2 / 3);
|
u8 *p = vbuf + offset;
|
unsigned vact = 0, hact = 1;
|
|
p[0] = 0xff;
|
p[1] = 0;
|
p[2] = 0;
|
p[3] = 0x80 | (params->sav_eav_f << 6) |
|
(vact << 5) | (hact << 4) |
|
((hact ^ vact) << 3) |
|
((hact ^ params->sav_eav_f) << 2) |
|
((params->sav_eav_f ^ vact) << 1) |
|
(hact ^ vact ^ params->sav_eav_f);
|
}
|
}
|
|
static void tpg_fill_plane_pattern(const struct tpg_data *tpg,
|
const struct tpg_draw_params *params,
|
unsigned p, unsigned h, u8 *vbuf)
|
{
|
unsigned twopixsize = params->twopixsize;
|
unsigned img_width = params->img_width;
|
unsigned mv_hor_old = params->mv_hor_old;
|
unsigned mv_hor_new = params->mv_hor_new;
|
unsigned mv_vert_old = params->mv_vert_old;
|
unsigned mv_vert_new = params->mv_vert_new;
|
unsigned frame_line = params->frame_line;
|
unsigned frame_line_next = params->frame_line_next;
|
unsigned line_offset = tpg_hscale_div(tpg, p, tpg->crop.left);
|
bool even;
|
bool fill_blank = false;
|
unsigned pat_line_old;
|
unsigned pat_line_new;
|
u8 *linestart_older;
|
u8 *linestart_newer;
|
u8 *linestart_top;
|
u8 *linestart_bottom;
|
|
even = !(frame_line & 1);
|
|
if (h >= params->hmax) {
|
if (params->hmax == tpg->compose.height)
|
return;
|
if (!tpg->perc_fill_blank)
|
return;
|
fill_blank = true;
|
}
|
|
if (tpg->vflip) {
|
frame_line = tpg->src_height - frame_line - 1;
|
frame_line_next = tpg->src_height - frame_line_next - 1;
|
}
|
|
if (fill_blank) {
|
linestart_older = tpg->contrast_line[p];
|
linestart_newer = tpg->contrast_line[p];
|
} else if (tpg->qual != TPG_QUAL_NOISE &&
|
(frame_line < tpg->border.top ||
|
frame_line >= tpg->border.top + tpg->border.height)) {
|
linestart_older = tpg->black_line[p];
|
linestart_newer = tpg->black_line[p];
|
} else if (tpg->pattern == TPG_PAT_NOISE || tpg->qual == TPG_QUAL_NOISE) {
|
linestart_older = tpg->random_line[p] +
|
twopixsize * prandom_u32_max(tpg->src_width / 2);
|
linestart_newer = tpg->random_line[p] +
|
twopixsize * prandom_u32_max(tpg->src_width / 2);
|
} else {
|
unsigned frame_line_old =
|
(frame_line + mv_vert_old) % tpg->src_height;
|
unsigned frame_line_new =
|
(frame_line + mv_vert_new) % tpg->src_height;
|
unsigned pat_line_next_old;
|
unsigned pat_line_next_new;
|
|
pat_line_old = tpg_get_pat_line(tpg, frame_line_old);
|
pat_line_new = tpg_get_pat_line(tpg, frame_line_new);
|
linestart_older = tpg->lines[pat_line_old][p] + mv_hor_old;
|
linestart_newer = tpg->lines[pat_line_new][p] + mv_hor_new;
|
|
if (tpg->vdownsampling[p] > 1 && frame_line != frame_line_next) {
|
int avg_pat;
|
|
/*
|
* Now decide whether we need to use downsampled_lines[].
|
* That's necessary if the two lines use different patterns.
|
*/
|
pat_line_next_old = tpg_get_pat_line(tpg,
|
(frame_line_next + mv_vert_old) % tpg->src_height);
|
pat_line_next_new = tpg_get_pat_line(tpg,
|
(frame_line_next + mv_vert_new) % tpg->src_height);
|
|
switch (tpg->field) {
|
case V4L2_FIELD_INTERLACED:
|
case V4L2_FIELD_INTERLACED_BT:
|
case V4L2_FIELD_INTERLACED_TB:
|
avg_pat = tpg_pattern_avg(tpg, pat_line_old, pat_line_new);
|
if (avg_pat < 0)
|
break;
|
linestart_older = tpg->downsampled_lines[avg_pat][p] + mv_hor_old;
|
linestart_newer = linestart_older;
|
break;
|
case V4L2_FIELD_NONE:
|
case V4L2_FIELD_TOP:
|
case V4L2_FIELD_BOTTOM:
|
case V4L2_FIELD_SEQ_BT:
|
case V4L2_FIELD_SEQ_TB:
|
avg_pat = tpg_pattern_avg(tpg, pat_line_old, pat_line_next_old);
|
if (avg_pat >= 0)
|
linestart_older = tpg->downsampled_lines[avg_pat][p] +
|
mv_hor_old;
|
avg_pat = tpg_pattern_avg(tpg, pat_line_new, pat_line_next_new);
|
if (avg_pat >= 0)
|
linestart_newer = tpg->downsampled_lines[avg_pat][p] +
|
mv_hor_new;
|
break;
|
}
|
}
|
linestart_older += line_offset;
|
linestart_newer += line_offset;
|
}
|
if (tpg->field_alternate) {
|
linestart_top = linestart_bottom = linestart_older;
|
} else if (params->is_60hz) {
|
linestart_top = linestart_newer;
|
linestart_bottom = linestart_older;
|
} else {
|
linestart_top = linestart_older;
|
linestart_bottom = linestart_newer;
|
}
|
|
switch (tpg->field) {
|
case V4L2_FIELD_INTERLACED:
|
case V4L2_FIELD_INTERLACED_TB:
|
case V4L2_FIELD_SEQ_TB:
|
case V4L2_FIELD_SEQ_BT:
|
if (even)
|
memcpy(vbuf, linestart_top, img_width);
|
else
|
memcpy(vbuf, linestart_bottom, img_width);
|
break;
|
case V4L2_FIELD_INTERLACED_BT:
|
if (even)
|
memcpy(vbuf, linestart_bottom, img_width);
|
else
|
memcpy(vbuf, linestart_top, img_width);
|
break;
|
case V4L2_FIELD_TOP:
|
memcpy(vbuf, linestart_top, img_width);
|
break;
|
case V4L2_FIELD_BOTTOM:
|
memcpy(vbuf, linestart_bottom, img_width);
|
break;
|
case V4L2_FIELD_NONE:
|
default:
|
memcpy(vbuf, linestart_older, img_width);
|
break;
|
}
|
}
|
|
void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std,
|
unsigned p, u8 *vbuf)
|
{
|
struct tpg_draw_params params;
|
unsigned factor = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1;
|
|
/* Coarse scaling with Bresenham */
|
unsigned int_part = (tpg->crop.height / factor) / tpg->compose.height;
|
unsigned fract_part = (tpg->crop.height / factor) % tpg->compose.height;
|
unsigned src_y = 0;
|
unsigned error = 0;
|
unsigned h;
|
|
tpg_recalc(tpg);
|
|
params.is_tv = std;
|
params.is_60hz = std & V4L2_STD_525_60;
|
params.twopixsize = tpg->twopixelsize[p];
|
params.img_width = tpg_hdiv(tpg, p, tpg->compose.width);
|
params.stride = tpg->bytesperline[p];
|
params.hmax = (tpg->compose.height * tpg->perc_fill) / 100;
|
|
tpg_fill_params_pattern(tpg, p, ¶ms);
|
tpg_fill_params_extras(tpg, p, ¶ms);
|
|
vbuf += tpg_hdiv(tpg, p, tpg->compose.left);
|
|
for (h = 0; h < tpg->compose.height; h++) {
|
unsigned buf_line;
|
|
params.frame_line = tpg_calc_frameline(tpg, src_y, tpg->field);
|
params.frame_line_next = params.frame_line;
|
buf_line = tpg_calc_buffer_line(tpg, h, tpg->field);
|
src_y += int_part;
|
error += fract_part;
|
if (error >= tpg->compose.height) {
|
error -= tpg->compose.height;
|
src_y++;
|
}
|
|
/*
|
* For line-interleaved formats determine the 'plane'
|
* based on the buffer line.
|
*/
|
if (tpg_g_interleaved(tpg))
|
p = tpg_g_interleaved_plane(tpg, buf_line);
|
|
if (tpg->vdownsampling[p] > 1) {
|
/*
|
* When doing vertical downsampling the field setting
|
* matters: for SEQ_BT/TB we downsample each field
|
* separately (i.e. lines 0+2 are combined, as are
|
* lines 1+3), for the other field settings we combine
|
* odd and even lines. Doing that for SEQ_BT/TB would
|
* be really weird.
|
*/
|
if (tpg->field == V4L2_FIELD_SEQ_BT ||
|
tpg->field == V4L2_FIELD_SEQ_TB) {
|
unsigned next_src_y = src_y;
|
|
if ((h & 3) >= 2)
|
continue;
|
next_src_y += int_part;
|
if (error + fract_part >= tpg->compose.height)
|
next_src_y++;
|
params.frame_line_next =
|
tpg_calc_frameline(tpg, next_src_y, tpg->field);
|
} else {
|
if (h & 1)
|
continue;
|
params.frame_line_next =
|
tpg_calc_frameline(tpg, src_y, tpg->field);
|
}
|
|
buf_line /= tpg->vdownsampling[p];
|
}
|
tpg_fill_plane_pattern(tpg, ¶ms, p, h,
|
vbuf + buf_line * params.stride);
|
tpg_fill_plane_extras(tpg, ¶ms, p, h,
|
vbuf + buf_line * params.stride);
|
}
|
}
|
EXPORT_SYMBOL_GPL(tpg_fill_plane_buffer);
|
|
void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf)
|
{
|
unsigned offset = 0;
|
unsigned i;
|
|
if (tpg->buffers > 1) {
|
tpg_fill_plane_buffer(tpg, std, p, vbuf);
|
return;
|
}
|
|
for (i = 0; i < tpg_g_planes(tpg); i++) {
|
tpg_fill_plane_buffer(tpg, std, i, vbuf + offset);
|
offset += tpg_calc_plane_size(tpg, i);
|
}
|
}
|
EXPORT_SYMBOL_GPL(tpg_fillbuffer);
|
|
MODULE_DESCRIPTION("V4L2 Test Pattern Generator");
|
MODULE_AUTHOR("Hans Verkuil");
|
MODULE_LICENSE("GPL");
|
