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-rw-r--r--include/media/tpg/v4l2-tpg.h668
1 files changed, 668 insertions, 0 deletions
diff --git a/include/media/tpg/v4l2-tpg.h b/include/media/tpg/v4l2-tpg.h
new file mode 100644
index 000000000..a55088921
--- /dev/null
+++ b/include/media/tpg/v4l2-tpg.h
@@ -0,0 +1,668 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * v4l2-tpg.h - Test Pattern Generator
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _V4L2_TPG_H_
+#define _V4L2_TPG_H_
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/random.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/videodev2.h>
+
+struct tpg_rbg_color8 {
+ unsigned char r, g, b;
+};
+
+struct tpg_rbg_color16 {
+ __u16 r, g, b;
+};
+
+enum tpg_color {
+ 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,
+ 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_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,
+ TPG_COLOR_TEXTFG,
+ TPG_COLOR_TEXTBG,
+ TPG_COLOR_RANDOM,
+ TPG_COLOR_RAMP,
+ TPG_COLOR_MAX = TPG_COLOR_RAMP + 256
+};
+
+extern const struct tpg_rbg_color8 tpg_colors[TPG_COLOR_MAX];
+extern const unsigned short tpg_rec709_to_linear[255 * 16 + 1];
+extern const unsigned short tpg_linear_to_rec709[255 * 16 + 1];
+extern const struct tpg_rbg_color16 tpg_csc_colors[V4L2_COLORSPACE_DCI_P3 + 1]
+ [V4L2_XFER_FUNC_SMPTE2084 + 1]
+ [TPG_COLOR_CSC_BLACK + 1];
+enum tpg_pattern {
+ TPG_PAT_75_COLORBAR,
+ TPG_PAT_100_COLORBAR,
+ TPG_PAT_CSC_COLORBAR,
+ TPG_PAT_100_HCOLORBAR,
+ TPG_PAT_100_COLORSQUARES,
+ TPG_PAT_BLACK,
+ TPG_PAT_WHITE,
+ TPG_PAT_RED,
+ TPG_PAT_GREEN,
+ TPG_PAT_BLUE,
+ TPG_PAT_CHECKERS_16X16,
+ TPG_PAT_CHECKERS_2X2,
+ TPG_PAT_CHECKERS_1X1,
+ TPG_PAT_COLOR_CHECKERS_2X2,
+ TPG_PAT_COLOR_CHECKERS_1X1,
+ TPG_PAT_ALTERNATING_HLINES,
+ TPG_PAT_ALTERNATING_VLINES,
+ TPG_PAT_CROSS_1_PIXEL,
+ TPG_PAT_CROSS_2_PIXELS,
+ TPG_PAT_CROSS_10_PIXELS,
+ TPG_PAT_GRAY_RAMP,
+
+ /* Must be the last pattern */
+ TPG_PAT_NOISE,
+};
+
+extern const char * const tpg_pattern_strings[];
+
+enum tpg_quality {
+ TPG_QUAL_COLOR,
+ TPG_QUAL_GRAY,
+ TPG_QUAL_NOISE
+};
+
+enum tpg_video_aspect {
+ TPG_VIDEO_ASPECT_IMAGE,
+ TPG_VIDEO_ASPECT_4X3,
+ TPG_VIDEO_ASPECT_14X9_CENTRE,
+ TPG_VIDEO_ASPECT_16X9_CENTRE,
+ TPG_VIDEO_ASPECT_16X9_ANAMORPHIC,
+};
+
+enum tpg_pixel_aspect {
+ TPG_PIXEL_ASPECT_SQUARE,
+ TPG_PIXEL_ASPECT_NTSC,
+ TPG_PIXEL_ASPECT_PAL,
+};
+
+enum tpg_move_mode {
+ TPG_MOVE_NEG_FAST,
+ TPG_MOVE_NEG,
+ TPG_MOVE_NEG_SLOW,
+ TPG_MOVE_NONE,
+ TPG_MOVE_POS_SLOW,
+ TPG_MOVE_POS,
+ TPG_MOVE_POS_FAST,
+};
+
+enum tgp_color_enc {
+ TGP_COLOR_ENC_RGB,
+ TGP_COLOR_ENC_YCBCR,
+ TGP_COLOR_ENC_HSV,
+ TGP_COLOR_ENC_LUMA,
+};
+
+extern const char * const tpg_aspect_strings[];
+
+#define TPG_MAX_PLANES 3
+#define TPG_MAX_PAT_LINES 8
+
+struct tpg_data {
+ /* Source frame size */
+ unsigned src_width, src_height;
+ /* Buffer height */
+ unsigned buf_height;
+ /* Scaled output frame size */
+ unsigned scaled_width;
+ u32 field;
+ bool field_alternate;
+ /* crop coordinates are frame-based */
+ struct v4l2_rect crop;
+ /* compose coordinates are format-based */
+ struct v4l2_rect compose;
+ /* border and square coordinates are frame-based */
+ struct v4l2_rect border;
+ struct v4l2_rect square;
+
+ /* Color-related fields */
+ enum tpg_quality qual;
+ unsigned qual_offset;
+ u8 alpha_component;
+ bool alpha_red_only;
+ u8 brightness;
+ u8 contrast;
+ u8 saturation;
+ s16 hue;
+ u32 fourcc;
+ enum tgp_color_enc color_enc;
+ u32 colorspace;
+ u32 xfer_func;
+ u32 ycbcr_enc;
+ u32 hsv_enc;
+ /*
+ * Stores the actual transfer function, i.e. will never be
+ * V4L2_XFER_FUNC_DEFAULT.
+ */
+ u32 real_xfer_func;
+ /*
+ * Stores the actual Y'CbCr encoding, i.e. will never be
+ * V4L2_YCBCR_ENC_DEFAULT.
+ */
+ u32 real_hsv_enc;
+ u32 real_ycbcr_enc;
+ u32 quantization;
+ /*
+ * Stores the actual quantization, i.e. will never be
+ * V4L2_QUANTIZATION_DEFAULT.
+ */
+ u32 real_quantization;
+ enum tpg_video_aspect vid_aspect;
+ enum tpg_pixel_aspect pix_aspect;
+ unsigned rgb_range;
+ unsigned real_rgb_range;
+ unsigned buffers;
+ unsigned planes;
+ bool interleaved;
+ u8 vdownsampling[TPG_MAX_PLANES];
+ u8 hdownsampling[TPG_MAX_PLANES];
+ /*
+ * horizontal positions must be ANDed with this value to enforce
+ * correct boundaries for packed YUYV values.
+ */
+ unsigned hmask[TPG_MAX_PLANES];
+ /* Used to store the colors in native format, either RGB or YUV */
+ u8 colors[TPG_COLOR_MAX][3];
+ u8 textfg[TPG_MAX_PLANES][8], textbg[TPG_MAX_PLANES][8];
+ /* size in bytes for two pixels in each plane */
+ unsigned twopixelsize[TPG_MAX_PLANES];
+ unsigned bytesperline[TPG_MAX_PLANES];
+
+ /* Configuration */
+ enum tpg_pattern pattern;
+ bool hflip;
+ bool vflip;
+ unsigned perc_fill;
+ bool perc_fill_blank;
+ bool show_border;
+ bool show_square;
+ bool insert_sav;
+ bool insert_eav;
+ bool insert_hdmi_video_guard_band;
+
+ /* Test pattern movement */
+ enum tpg_move_mode mv_hor_mode;
+ int mv_hor_count;
+ int mv_hor_step;
+ enum tpg_move_mode mv_vert_mode;
+ int mv_vert_count;
+ int mv_vert_step;
+
+ bool recalc_colors;
+ bool recalc_lines;
+ bool recalc_square_border;
+
+ /* Used to store TPG_MAX_PAT_LINES lines, each with up to two planes */
+ unsigned max_line_width;
+ u8 *lines[TPG_MAX_PAT_LINES][TPG_MAX_PLANES];
+ u8 *downsampled_lines[TPG_MAX_PAT_LINES][TPG_MAX_PLANES];
+ u8 *random_line[TPG_MAX_PLANES];
+ u8 *contrast_line[TPG_MAX_PLANES];
+ u8 *black_line[TPG_MAX_PLANES];
+};
+
+void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h);
+int tpg_alloc(struct tpg_data *tpg, unsigned max_w);
+void tpg_free(struct tpg_data *tpg);
+void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
+ u32 field);
+void tpg_log_status(struct tpg_data *tpg);
+
+void tpg_set_font(const u8 *f);
+void tpg_gen_text(const struct tpg_data *tpg,
+ u8 *basep[TPG_MAX_PLANES][2], int y, int x, const char *text);
+void tpg_calc_text_basep(struct tpg_data *tpg,
+ u8 *basep[TPG_MAX_PLANES][2], unsigned p, u8 *vbuf);
+unsigned tpg_g_interleaved_plane(const struct tpg_data *tpg, unsigned buf_line);
+void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std,
+ unsigned p, u8 *vbuf);
+void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std,
+ unsigned p, u8 *vbuf);
+bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc);
+void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
+ const struct v4l2_rect *compose);
+const char *tpg_g_color_order(const struct tpg_data *tpg);
+
+static inline void tpg_s_pattern(struct tpg_data *tpg, enum tpg_pattern pattern)
+{
+ if (tpg->pattern == pattern)
+ return;
+ tpg->pattern = pattern;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_quality(struct tpg_data *tpg,
+ enum tpg_quality qual, unsigned qual_offset)
+{
+ if (tpg->qual == qual && tpg->qual_offset == qual_offset)
+ return;
+ tpg->qual = qual;
+ tpg->qual_offset = qual_offset;
+ tpg->recalc_colors = true;
+}
+
+static inline enum tpg_quality tpg_g_quality(const struct tpg_data *tpg)
+{
+ return tpg->qual;
+}
+
+static inline void tpg_s_alpha_component(struct tpg_data *tpg,
+ u8 alpha_component)
+{
+ if (tpg->alpha_component == alpha_component)
+ return;
+ tpg->alpha_component = alpha_component;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_alpha_mode(struct tpg_data *tpg,
+ bool red_only)
+{
+ if (tpg->alpha_red_only == red_only)
+ return;
+ tpg->alpha_red_only = red_only;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_brightness(struct tpg_data *tpg,
+ u8 brightness)
+{
+ if (tpg->brightness == brightness)
+ return;
+ tpg->brightness = brightness;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_contrast(struct tpg_data *tpg,
+ u8 contrast)
+{
+ if (tpg->contrast == contrast)
+ return;
+ tpg->contrast = contrast;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_saturation(struct tpg_data *tpg,
+ u8 saturation)
+{
+ if (tpg->saturation == saturation)
+ return;
+ tpg->saturation = saturation;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_hue(struct tpg_data *tpg,
+ s16 hue)
+{
+ hue = clamp_t(s16, hue, -128, 128);
+ if (tpg->hue == hue)
+ return;
+ tpg->hue = hue;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_rgb_range(struct tpg_data *tpg,
+ unsigned rgb_range)
+{
+ if (tpg->rgb_range == rgb_range)
+ return;
+ tpg->rgb_range = rgb_range;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_real_rgb_range(struct tpg_data *tpg,
+ unsigned rgb_range)
+{
+ if (tpg->real_rgb_range == rgb_range)
+ return;
+ tpg->real_rgb_range = rgb_range;
+ tpg->recalc_colors = true;
+}
+
+static inline void tpg_s_colorspace(struct tpg_data *tpg, u32 colorspace)
+{
+ if (tpg->colorspace == colorspace)
+ return;
+ tpg->colorspace = colorspace;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_colorspace(const struct tpg_data *tpg)
+{
+ return tpg->colorspace;
+}
+
+static inline void tpg_s_ycbcr_enc(struct tpg_data *tpg, u32 ycbcr_enc)
+{
+ if (tpg->ycbcr_enc == ycbcr_enc)
+ return;
+ tpg->ycbcr_enc = ycbcr_enc;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_ycbcr_enc(const struct tpg_data *tpg)
+{
+ return tpg->ycbcr_enc;
+}
+
+static inline void tpg_s_hsv_enc(struct tpg_data *tpg, u32 hsv_enc)
+{
+ if (tpg->hsv_enc == hsv_enc)
+ return;
+ tpg->hsv_enc = hsv_enc;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_hsv_enc(const struct tpg_data *tpg)
+{
+ return tpg->hsv_enc;
+}
+
+static inline void tpg_s_xfer_func(struct tpg_data *tpg, u32 xfer_func)
+{
+ if (tpg->xfer_func == xfer_func)
+ return;
+ tpg->xfer_func = xfer_func;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_xfer_func(const struct tpg_data *tpg)
+{
+ return tpg->xfer_func;
+}
+
+static inline void tpg_s_quantization(struct tpg_data *tpg, u32 quantization)
+{
+ if (tpg->quantization == quantization)
+ return;
+ tpg->quantization = quantization;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_quantization(const struct tpg_data *tpg)
+{
+ return tpg->quantization;
+}
+
+static inline unsigned tpg_g_buffers(const struct tpg_data *tpg)
+{
+ return tpg->buffers;
+}
+
+static inline unsigned tpg_g_planes(const struct tpg_data *tpg)
+{
+ return tpg->interleaved ? 1 : tpg->planes;
+}
+
+static inline bool tpg_g_interleaved(const struct tpg_data *tpg)
+{
+ return tpg->interleaved;
+}
+
+static inline unsigned tpg_g_twopixelsize(const struct tpg_data *tpg, unsigned plane)
+{
+ return tpg->twopixelsize[plane];
+}
+
+static inline unsigned tpg_hdiv(const struct tpg_data *tpg,
+ unsigned plane, unsigned x)
+{
+ return ((x / tpg->hdownsampling[plane]) & tpg->hmask[plane]) *
+ tpg->twopixelsize[plane] / 2;
+}
+
+static inline unsigned tpg_hscale(const struct tpg_data *tpg, unsigned x)
+{
+ return (x * tpg->scaled_width) / tpg->src_width;
+}
+
+static inline unsigned tpg_hscale_div(const struct tpg_data *tpg,
+ unsigned plane, unsigned x)
+{
+ return tpg_hdiv(tpg, plane, tpg_hscale(tpg, x));
+}
+
+static inline unsigned tpg_g_bytesperline(const struct tpg_data *tpg, unsigned plane)
+{
+ return tpg->bytesperline[plane];
+}
+
+static inline void tpg_s_bytesperline(struct tpg_data *tpg, unsigned plane, unsigned bpl)
+{
+ unsigned p;
+
+ if (tpg->buffers > 1) {
+ tpg->bytesperline[plane] = bpl;
+ return;
+ }
+
+ for (p = 0; p < tpg_g_planes(tpg); p++) {
+ unsigned plane_w = bpl * tpg->twopixelsize[p] / tpg->twopixelsize[0];
+
+ tpg->bytesperline[p] = plane_w / tpg->hdownsampling[p];
+ }
+ if (tpg_g_interleaved(tpg))
+ tpg->bytesperline[1] = tpg->bytesperline[0];
+}
+
+
+static inline unsigned tpg_g_line_width(const struct tpg_data *tpg, unsigned plane)
+{
+ unsigned w = 0;
+ unsigned p;
+
+ if (tpg->buffers > 1)
+ return tpg_g_bytesperline(tpg, plane);
+ for (p = 0; p < tpg_g_planes(tpg); p++) {
+ unsigned plane_w = tpg_g_bytesperline(tpg, p);
+
+ w += plane_w / tpg->vdownsampling[p];
+ }
+ return w;
+}
+
+static inline unsigned tpg_calc_line_width(const struct tpg_data *tpg,
+ unsigned plane, unsigned bpl)
+{
+ unsigned w = 0;
+ unsigned p;
+
+ if (tpg->buffers > 1)
+ return bpl;
+ for (p = 0; p < tpg_g_planes(tpg); p++) {
+ unsigned plane_w = bpl * tpg->twopixelsize[p] / tpg->twopixelsize[0];
+
+ plane_w /= tpg->hdownsampling[p];
+ w += plane_w / tpg->vdownsampling[p];
+ }
+ return w;
+}
+
+static inline unsigned tpg_calc_plane_size(const struct tpg_data *tpg, unsigned plane)
+{
+ if (plane >= tpg_g_planes(tpg))
+ return 0;
+
+ return tpg_g_bytesperline(tpg, plane) * tpg->buf_height /
+ tpg->vdownsampling[plane];
+}
+
+static inline void tpg_s_buf_height(struct tpg_data *tpg, unsigned h)
+{
+ tpg->buf_height = h;
+}
+
+static inline void tpg_s_field(struct tpg_data *tpg, unsigned field, bool alternate)
+{
+ tpg->field = field;
+ tpg->field_alternate = alternate;
+}
+
+static inline void tpg_s_perc_fill(struct tpg_data *tpg,
+ unsigned perc_fill)
+{
+ tpg->perc_fill = perc_fill;
+}
+
+static inline unsigned tpg_g_perc_fill(const struct tpg_data *tpg)
+{
+ return tpg->perc_fill;
+}
+
+static inline void tpg_s_perc_fill_blank(struct tpg_data *tpg,
+ bool perc_fill_blank)
+{
+ tpg->perc_fill_blank = perc_fill_blank;
+}
+
+static inline void tpg_s_video_aspect(struct tpg_data *tpg,
+ enum tpg_video_aspect vid_aspect)
+{
+ if (tpg->vid_aspect == vid_aspect)
+ return;
+ tpg->vid_aspect = vid_aspect;
+ tpg->recalc_square_border = true;
+}
+
+static inline enum tpg_video_aspect tpg_g_video_aspect(const struct tpg_data *tpg)
+{
+ return tpg->vid_aspect;
+}
+
+static inline void tpg_s_pixel_aspect(struct tpg_data *tpg,
+ enum tpg_pixel_aspect pix_aspect)
+{
+ if (tpg->pix_aspect == pix_aspect)
+ return;
+ tpg->pix_aspect = pix_aspect;
+ tpg->recalc_square_border = true;
+}
+
+static inline void tpg_s_show_border(struct tpg_data *tpg,
+ bool show_border)
+{
+ tpg->show_border = show_border;
+}
+
+static inline void tpg_s_show_square(struct tpg_data *tpg,
+ bool show_square)
+{
+ tpg->show_square = show_square;
+}
+
+static inline void tpg_s_insert_sav(struct tpg_data *tpg, bool insert_sav)
+{
+ tpg->insert_sav = insert_sav;
+}
+
+static inline void tpg_s_insert_eav(struct tpg_data *tpg, bool insert_eav)
+{
+ tpg->insert_eav = insert_eav;
+}
+
+/*
+ * This inserts 4 pixels of the RGB color 0xab55ab at the left hand side of the
+ * image. This is only done for 3 or 4 byte RGB pixel formats. This pixel value
+ * equals the Video Guard Band value as defined by HDMI (see section 5.2.2.1
+ * in the HDMI 1.3 Specification) that preceeds the first actual pixel. If the
+ * HDMI receiver doesn't handle this correctly, then it might keep skipping
+ * these Video Guard Band patterns and end up with a shorter video line. So this
+ * is a nice pattern to test with.
+ */
+static inline void tpg_s_insert_hdmi_video_guard_band(struct tpg_data *tpg,
+ bool insert_hdmi_video_guard_band)
+{
+ tpg->insert_hdmi_video_guard_band = insert_hdmi_video_guard_band;
+}
+
+void tpg_update_mv_step(struct tpg_data *tpg);
+
+static inline void tpg_s_mv_hor_mode(struct tpg_data *tpg,
+ enum tpg_move_mode mv_hor_mode)
+{
+ tpg->mv_hor_mode = mv_hor_mode;
+ tpg_update_mv_step(tpg);
+}
+
+static inline void tpg_s_mv_vert_mode(struct tpg_data *tpg,
+ enum tpg_move_mode mv_vert_mode)
+{
+ tpg->mv_vert_mode = mv_vert_mode;
+ tpg_update_mv_step(tpg);
+}
+
+static inline void tpg_init_mv_count(struct tpg_data *tpg)
+{
+ tpg->mv_hor_count = tpg->mv_vert_count = 0;
+}
+
+static inline void tpg_update_mv_count(struct tpg_data *tpg, bool frame_is_field)
+{
+ tpg->mv_hor_count += tpg->mv_hor_step * (frame_is_field ? 1 : 2);
+ tpg->mv_vert_count += tpg->mv_vert_step * (frame_is_field ? 1 : 2);
+}
+
+static inline void tpg_s_hflip(struct tpg_data *tpg, bool hflip)
+{
+ if (tpg->hflip == hflip)
+ return;
+ tpg->hflip = hflip;
+ tpg_update_mv_step(tpg);
+ tpg->recalc_lines = true;
+}
+
+static inline bool tpg_g_hflip(const struct tpg_data *tpg)
+{
+ return tpg->hflip;
+}
+
+static inline void tpg_s_vflip(struct tpg_data *tpg, bool vflip)
+{
+ tpg->vflip = vflip;
+}
+
+static inline bool tpg_g_vflip(const struct tpg_data *tpg)
+{
+ return tpg->vflip;
+}
+
+static inline bool tpg_pattern_is_static(const struct tpg_data *tpg)
+{
+ return tpg->pattern != TPG_PAT_NOISE &&
+ tpg->mv_hor_mode == TPG_MOVE_NONE &&
+ tpg->mv_vert_mode == TPG_MOVE_NONE;
+}
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 16:54:11 +0000