| /* GStreamer |
| * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| /* non-GST-specific stuff */ |
| |
| #include "gstvideotestsrc.h" |
| #include "videotestsrc.h" |
| #include "gstvideotestsrcorc.h" |
| |
| #include <gst/math-compat.h> |
| |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #define TO_16(x) (((x)<<8) | (x)) |
| |
| static unsigned char |
| random_char (void) |
| { |
| static unsigned int state; |
| |
| state *= 1103515245; |
| state += 12345; |
| return (state >> 16) & 0xff; |
| } |
| |
| enum |
| { |
| COLOR_WHITE = 0, |
| COLOR_YELLOW, |
| COLOR_CYAN, |
| COLOR_GREEN, |
| COLOR_MAGENTA, |
| COLOR_RED, |
| COLOR_BLUE, |
| COLOR_BLACK, |
| COLOR_NEG_I, |
| COLOR_POS_Q, |
| COLOR_SUPER_BLACK, |
| COLOR_DARK_GREY |
| }; |
| |
| static const struct vts_color_struct vts_colors_bt709_ycbcr_100[] = { |
| {235, 128, 128, 255, 255, 255, 255, (235 << 8)}, |
| {219, 16, 138, 255, 255, 255, 0, (219 << 8)}, |
| {188, 154, 16, 255, 0, 255, 255, (188 < 8)}, |
| {173, 42, 26, 255, 0, 255, 0, (173 << 8)}, |
| {78, 214, 230, 255, 255, 0, 255, (78 << 8)}, |
| {63, 102, 240, 255, 255, 0, 0, (64 << 8)}, |
| {32, 240, 118, 255, 0, 0, 255, (32 << 8)}, |
| {16, 128, 128, 255, 0, 0, 0, (16 << 8)}, |
| {16, 198, 21, 255, 0, 0, 128, (16 << 8)}, /* -I ? */ |
| {16, 235, 198, 255, 0, 128, 255, (16 << 8)}, /* +Q ? */ |
| {0, 128, 128, 255, 0, 0, 0, 0}, |
| {32, 128, 128, 255, 19, 19, 19, (32 << 8)}, |
| }; |
| |
| static const struct vts_color_struct vts_colors_bt709_ycbcr_75[] = { |
| {180, 128, 128, 255, 191, 191, 191, (180 << 8)}, |
| {168, 44, 136, 255, 191, 191, 0, (168 << 8)}, |
| {145, 147, 44, 255, 0, 191, 191, (145 << 8)}, |
| {133, 63, 52, 255, 0, 191, 0, (133 << 8)}, |
| {63, 193, 204, 255, 191, 0, 191, (63 << 8)}, |
| {51, 109, 212, 255, 191, 0, 0, (51 << 8)}, |
| {28, 212, 120, 255, 0, 0, 191, (28 << 8)}, |
| {16, 128, 128, 255, 0, 0, 0, (16 << 8)}, |
| {16, 198, 21, 255, 0, 0, 128, (16 << 8)}, /* -I ? */ |
| {16, 235, 198, 255, 0, 128, 255, (16 << 8)}, /* +Q ? */ |
| {0, 128, 128, 255, 0, 0, 0, 0}, |
| {32, 128, 128, 255, 19, 19, 19, (32 << 8)}, |
| }; |
| |
| static const struct vts_color_struct vts_colors_bt601_ycbcr_100[] = { |
| {235, 128, 128, 255, 255, 255, 255, (235 << 8)}, |
| {210, 16, 146, 255, 255, 255, 0, (219 << 8)}, |
| {170, 166, 16, 255, 0, 255, 255, (188 < 8)}, |
| {145, 54, 34, 255, 0, 255, 0, (173 << 8)}, |
| {106, 202, 222, 255, 255, 0, 255, (78 << 8)}, |
| {81, 90, 240, 255, 255, 0, 0, (64 << 8)}, |
| {41, 240, 110, 255, 0, 0, 255, (32 << 8)}, |
| {16, 128, 128, 255, 0, 0, 0, (16 << 8)}, |
| {16, 198, 21, 255, 0, 0, 128, (16 << 8)}, /* -I ? */ |
| {16, 235, 198, 255, 0, 128, 255, (16 << 8)}, /* +Q ? */ |
| {-0, 128, 128, 255, 0, 0, 0, 0}, |
| {32, 128, 128, 255, 19, 19, 19, (32 << 8)}, |
| }; |
| |
| static const struct vts_color_struct vts_colors_bt601_ycbcr_75[] = { |
| {180, 128, 128, 255, 191, 191, 191, (180 << 8)}, |
| {162, 44, 142, 255, 191, 191, 0, (168 << 8)}, |
| {131, 156, 44, 255, 0, 191, 191, (145 << 8)}, |
| {112, 72, 58, 255, 0, 191, 0, (133 << 8)}, |
| {84, 184, 198, 255, 191, 0, 191, (63 << 8)}, |
| {65, 100, 212, 255, 191, 0, 0, (51 << 8)}, |
| {35, 212, 114, 255, 0, 0, 191, (28 << 8)}, |
| {16, 128, 128, 255, 0, 0, 0, (16 << 8)}, |
| {16, 198, 21, 255, 0, 0, 128, (16 << 8)}, /* -I ? */ |
| {16, 235, 198, 255, 0, 128, 255, (16 << 8)}, /* +Q ? */ |
| {-0, 128, 128, 255, 0, 0, 0, 0}, |
| {32, 128, 128, 255, 19, 19, 19, (32 << 8)}, |
| }; |
| |
| |
| static void paint_tmpline_ARGB (paintinfo * p, int x, int w); |
| static void paint_tmpline_AYUV (paintinfo * p, int x, int w); |
| |
| static void convert_hline_generic (paintinfo * p, GstVideoFrame * frame, int y); |
| static void convert_hline_bayer (paintinfo * p, GstVideoFrame * frame, int y); |
| |
| #define SCALEBITS 10 |
| #define ONE_HALF (1 << (SCALEBITS - 1)) |
| #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5)) |
| |
| #define RGB_TO_Y(r, g, b) \ |
| ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \ |
| FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS) |
| |
| #define RGB_TO_U(r1, g1, b1, shift)\ |
| (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \ |
| FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_V(r1, g1, b1, shift)\ |
| (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \ |
| FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_Y_CCIR(r, g, b) \ |
| ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \ |
| FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) |
| |
| #define RGB_TO_U_CCIR(r1, g1, b1, shift)\ |
| (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \ |
| FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_V_CCIR(r1, g1, b1, shift)\ |
| (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \ |
| FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_Y_CCIR_709(r, g, b) \ |
| ((FIX(0.212600*219.0/255.0) * (r) + FIX(0.715200*219.0/255.0) * (g) + \ |
| FIX(0.072200*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) |
| |
| #define RGB_TO_U_CCIR_709(r1, g1, b1, shift)\ |
| (((- FIX(0.114572*224.0/255.0) * r1 - FIX(0.385427*224.0/255.0) * g1 + \ |
| FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_V_CCIR_709(r1, g1, b1, shift)\ |
| (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.454153*224.0/255.0) * g1 - \ |
| FIX(0.045847*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| static void |
| videotestsrc_setup_paintinfo (GstVideoTestSrc * v, paintinfo * p, int w, int h) |
| { |
| gint a, r, g, b; |
| gint width; |
| GstVideoInfo *info = &v->info; |
| |
| width = GST_VIDEO_INFO_WIDTH (info); |
| |
| if (info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601) { |
| p->colors = vts_colors_bt601_ycbcr_100; |
| } else { |
| p->colors = vts_colors_bt709_ycbcr_100; |
| } |
| |
| if (v->bayer) { |
| p->paint_tmpline = paint_tmpline_ARGB; |
| p->convert_tmpline = convert_hline_bayer; |
| } else { |
| p->convert_tmpline = convert_hline_generic; |
| if (GST_VIDEO_INFO_IS_RGB (info)) { |
| p->paint_tmpline = paint_tmpline_ARGB; |
| } else { |
| p->paint_tmpline = paint_tmpline_AYUV; |
| } |
| } |
| p->tmpline = v->tmpline; |
| p->tmpline2 = v->tmpline2; |
| p->tmpline_u8 = v->tmpline_u8; |
| p->tmpline_u16 = v->tmpline_u16; |
| p->n_lines = v->n_lines; |
| p->offset = v->offset; |
| p->lines = v->lines; |
| p->x_offset = (v->horizontal_speed * v->n_frames) % width; |
| if (p->x_offset < 0) |
| p->x_offset += width; |
| p->x_invert = v->x_invert; |
| p->y_invert = v->y_invert; |
| |
| a = (v->foreground_color >> 24) & 0xff; |
| r = (v->foreground_color >> 16) & 0xff; |
| g = (v->foreground_color >> 8) & 0xff; |
| b = (v->foreground_color >> 0) & 0xff; |
| p->foreground_color.A = a; |
| p->foreground_color.R = r; |
| p->foreground_color.G = g; |
| p->foreground_color.B = b; |
| |
| if (info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601) { |
| p->foreground_color.Y = RGB_TO_Y_CCIR (r, g, b); |
| p->foreground_color.U = RGB_TO_U_CCIR (r, g, b, 0); |
| p->foreground_color.V = RGB_TO_V_CCIR (r, g, b, 0); |
| } else { |
| p->foreground_color.Y = RGB_TO_Y_CCIR_709 (r, g, b); |
| p->foreground_color.U = RGB_TO_U_CCIR_709 (r, g, b, 0); |
| p->foreground_color.V = RGB_TO_V_CCIR_709 (r, g, b, 0); |
| } |
| p->foreground_color.gray = RGB_TO_Y (r, g, b); |
| |
| a = (v->background_color >> 24) & 0xff; |
| r = (v->background_color >> 16) & 0xff; |
| g = (v->background_color >> 8) & 0xff; |
| b = (v->background_color >> 0) & 0xff; |
| p->background_color.A = a; |
| p->background_color.R = r; |
| p->background_color.G = g; |
| p->background_color.B = b; |
| |
| if (info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601) { |
| p->background_color.Y = RGB_TO_Y_CCIR (r, g, b); |
| p->background_color.U = RGB_TO_U_CCIR (r, g, b, 0); |
| p->background_color.V = RGB_TO_V_CCIR (r, g, b, 0); |
| } else { |
| p->background_color.Y = RGB_TO_Y_CCIR_709 (r, g, b); |
| p->background_color.U = RGB_TO_U_CCIR_709 (r, g, b, 0); |
| p->background_color.V = RGB_TO_V_CCIR_709 (r, g, b, 0); |
| } |
| p->background_color.gray = RGB_TO_Y (r, g, b); |
| |
| p->subsample = v->subsample; |
| } |
| |
| static void |
| videotestsrc_convert_tmpline (paintinfo * p, GstVideoFrame * frame, int j) |
| { |
| int x = p->x_offset; |
| int i; |
| int width = frame->info.width; |
| int height = frame->info.height; |
| int n_lines = p->n_lines; |
| int offset = p->offset; |
| |
| if (x != 0) { |
| memcpy (p->tmpline2, p->tmpline, width * 4); |
| memcpy (p->tmpline, p->tmpline2 + x * 4, (width - x) * 4); |
| memcpy (p->tmpline + (width - x) * 4, p->tmpline2, x * 4); |
| } |
| |
| for (i = width; i < width + 5; i++) { |
| p->tmpline[4 * i + 0] = p->tmpline[4 * (width - 1) + 0]; |
| p->tmpline[4 * i + 1] = p->tmpline[4 * (width - 1) + 1]; |
| p->tmpline[4 * i + 2] = p->tmpline[4 * (width - 1) + 2]; |
| p->tmpline[4 * i + 3] = p->tmpline[4 * (width - 1) + 3]; |
| } |
| |
| p->convert_tmpline (p, frame, j); |
| |
| if (j == height - 1) { |
| while (j % n_lines - offset != n_lines - 1) { |
| j++; |
| p->convert_tmpline (p, frame, j); |
| } |
| } |
| } |
| |
| #define BLEND1(a,b,x) ((a)*(x) + (b)*(255-(x))) |
| #define DIV255(x) (((x) + (((x)+128)>>8) + 128)>>8) |
| #define BLEND(a,b,x) DIV255(BLEND1(a,b,x)) |
| |
| #ifdef unused |
| static void |
| videotestsrc_blend_color (struct vts_color_struct *dest, |
| struct vts_color_struct *a, struct vts_color_struct *b, int x) |
| { |
| dest->Y = BLEND (a->Y, b->Y, x); |
| dest->U = BLEND (a->U, b->U, x); |
| dest->V = BLEND (a->V, b->V, x); |
| dest->R = BLEND (a->R, b->R, x); |
| dest->G = BLEND (a->G, b->G, x); |
| dest->B = BLEND (a->B, b->B, x); |
| dest->gray = BLEND (a->gray, b->gray, x); |
| |
| } |
| #endif |
| |
| static void |
| videotestsrc_blend_line (GstVideoTestSrc * v, guint8 * dest, guint8 * src, |
| struct vts_color_struct *a, struct vts_color_struct *b, int n) |
| { |
| int i; |
| if (v->bayer || GST_VIDEO_INFO_IS_RGB (&v->info)) { |
| for (i = 0; i < n; i++) { |
| dest[i * 4 + 0] = BLEND (a->A, b->A, src[i]); |
| dest[i * 4 + 1] = BLEND (a->R, b->R, src[i]); |
| dest[i * 4 + 2] = BLEND (a->G, b->G, src[i]); |
| dest[i * 4 + 3] = BLEND (a->B, b->B, src[i]); |
| } |
| } else { |
| for (i = 0; i < n; i++) { |
| dest[i * 4 + 0] = BLEND (a->A, b->A, src[i]); |
| dest[i * 4 + 1] = BLEND (a->Y, b->Y, src[i]); |
| dest[i * 4 + 2] = BLEND (a->U, b->U, src[i]); |
| dest[i * 4 + 3] = BLEND (a->V, b->V, src[i]); |
| } |
| } |
| #undef BLEND |
| } |
| |
| void |
| gst_video_test_src_smpte (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int y1, y2; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| y1 = 2 * h / 3; |
| y2 = 3 * h / 4; |
| |
| /* color bars */ |
| for (j = 0; j < y1; j++) { |
| for (i = 0; i < 7; i++) { |
| int x1 = i * w / 7; |
| int x2 = (i + 1) * w / 7; |
| |
| p->color = p->colors + i; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| |
| /* inverse blue bars */ |
| for (j = y1; j < y2; j++) { |
| for (i = 0; i < 7; i++) { |
| int x1 = i * w / 7; |
| int x2 = (i + 1) * w / 7; |
| int k; |
| |
| if (i & 1) { |
| k = 7; |
| } else { |
| k = 6 - i; |
| } |
| p->color = p->colors + k; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| |
| for (j = y2; j < h; j++) { |
| /* -I, white, Q regions */ |
| for (i = 0; i < 3; i++) { |
| int x1 = i * w / 6; |
| int x2 = (i + 1) * w / 6; |
| int k; |
| |
| if (i == 0) { |
| k = 8; |
| } else if (i == 1) { |
| k = 0; |
| } else |
| k = 9; |
| |
| p->color = p->colors + k; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| |
| /* superblack, black, dark grey */ |
| for (i = 0; i < 3; i++) { |
| int x1 = w / 2 + i * w / 12; |
| int x2 = w / 2 + (i + 1) * w / 12; |
| int k; |
| |
| if (i == 0) { |
| k = COLOR_SUPER_BLACK; |
| } else if (i == 1) { |
| k = COLOR_BLACK; |
| } else |
| k = COLOR_DARK_GREY; |
| |
| p->color = p->colors + k; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| |
| { |
| int x1 = w * 3 / 4; |
| struct vts_color_struct color; |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (i = x1; i < w; i++) { |
| int y = random_char (); |
| p->tmpline_u8[i] = y; |
| } |
| videotestsrc_blend_line (v, p->tmpline + x1 * 4, p->tmpline_u8 + x1, |
| &p->foreground_color, &p->background_color, w - x1); |
| |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| |
| } |
| } |
| |
| void |
| gst_video_test_src_smpte75 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| if (v->info.colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601) { |
| p->colors = vts_colors_bt601_ycbcr_75; |
| } else { |
| p->colors = vts_colors_bt709_ycbcr_75; |
| } |
| |
| /* color bars */ |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < 7; i++) { |
| int x1 = i * w / 7; |
| int x2 = (i + 1) * w / 7; |
| |
| p->color = p->colors + i; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_smpte100 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| /* color bars */ |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < 7; i++) { |
| int x1 = i * w / 7; |
| int x2 = (i + 1) * w / 7; |
| |
| p->color = p->colors + i; |
| p->paint_tmpline (p, x1, (x2 - x1)); |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_bar (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (j = 0; j < h; j++) { |
| /* use fixed size for now */ |
| int x2 = w / 7; |
| |
| p->color = &p->foreground_color; |
| p->paint_tmpline (p, 0, x2); |
| p->color = &p->background_color; |
| p->paint_tmpline (p, x2, (w - x2)); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_snow (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w; i++) { |
| int y = random_char (); |
| p->tmpline_u8[i] = y; |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| static void |
| gst_video_test_src_unicolor (GstVideoTestSrc * v, GstVideoFrame * frame, |
| int color_index) |
| { |
| int i; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| p->color = p->colors + color_index; |
| if (color_index == COLOR_BLACK) { |
| p->color = &p->background_color; |
| } |
| if (color_index == COLOR_WHITE) { |
| p->color = &p->foreground_color; |
| } |
| |
| for (i = 0; i < h; i++) { |
| p->paint_tmpline (p, 0, w); |
| videotestsrc_convert_tmpline (p, frame, i); |
| } |
| } |
| |
| void |
| gst_video_test_src_black (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| gst_video_test_src_unicolor (v, frame, COLOR_BLACK); |
| } |
| |
| void |
| gst_video_test_src_white (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| gst_video_test_src_unicolor (v, frame, COLOR_WHITE); |
| } |
| |
| void |
| gst_video_test_src_red (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| gst_video_test_src_unicolor (v, frame, COLOR_RED); |
| } |
| |
| void |
| gst_video_test_src_green (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| gst_video_test_src_unicolor (v, frame, COLOR_GREEN); |
| } |
| |
| void |
| gst_video_test_src_blue (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| gst_video_test_src_unicolor (v, frame, COLOR_BLUE); |
| } |
| |
| void |
| gst_video_test_src_blink (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| if (v->n_frames & 1) { |
| p->color = &p->foreground_color; |
| } else { |
| p->color = &p->background_color; |
| } |
| |
| for (i = 0; i < h; i++) { |
| p->paint_tmpline (p, 0, w); |
| videotestsrc_convert_tmpline (p, frame, i); |
| } |
| } |
| |
| void |
| gst_video_test_src_solid (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| p->color = &p->foreground_color; |
| |
| for (i = 0; i < h; i++) { |
| p->paint_tmpline (p, 0, w); |
| videotestsrc_convert_tmpline (p, frame, i); |
| } |
| } |
| |
| void |
| gst_video_test_src_checkers1 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int x, y; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x++) { |
| if ((x ^ y) & 1) { |
| p->color = p->colors + COLOR_GREEN; |
| } else { |
| p->color = p->colors + COLOR_RED; |
| } |
| p->paint_tmpline (p, x, 1); |
| } |
| videotestsrc_convert_tmpline (p, frame, y); |
| } |
| } |
| |
| void |
| gst_video_test_src_checkers2 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int x, y; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x += 2) { |
| guint len = MIN (2, w - x); |
| |
| if ((x ^ y) & 2) { |
| p->color = p->colors + COLOR_GREEN; |
| } else { |
| p->color = p->colors + COLOR_RED; |
| } |
| p->paint_tmpline (p, x, len); |
| } |
| videotestsrc_convert_tmpline (p, frame, y); |
| } |
| } |
| |
| void |
| gst_video_test_src_checkers4 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int x, y; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x += 4) { |
| guint len = MIN (4, w - x); |
| |
| if ((x ^ y) & 4) { |
| p->color = p->colors + COLOR_GREEN; |
| } else { |
| p->color = p->colors + COLOR_RED; |
| } |
| p->paint_tmpline (p, x, len); |
| } |
| videotestsrc_convert_tmpline (p, frame, y); |
| } |
| } |
| |
| void |
| gst_video_test_src_checkers8 (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int x, y; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x += 8) { |
| guint len = MIN (8, w - x); |
| |
| if ((x ^ y) & 8) { |
| p->color = p->colors + COLOR_GREEN; |
| } else { |
| p->color = p->colors + COLOR_RED; |
| } |
| p->paint_tmpline (p, x, len); |
| } |
| videotestsrc_convert_tmpline (p, frame, y); |
| } |
| } |
| |
| static const guint8 sine_table[256] = { |
| 128, 131, 134, 137, 140, 143, 146, 149, |
| 152, 156, 159, 162, 165, 168, 171, 174, |
| 176, 179, 182, 185, 188, 191, 193, 196, |
| 199, 201, 204, 206, 209, 211, 213, 216, |
| 218, 220, 222, 224, 226, 228, 230, 232, |
| 234, 236, 237, 239, 240, 242, 243, 245, |
| 246, 247, 248, 249, 250, 251, 252, 252, |
| 253, 254, 254, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 254, 254, |
| 253, 252, 252, 251, 250, 249, 248, 247, |
| 246, 245, 243, 242, 240, 239, 237, 236, |
| 234, 232, 230, 228, 226, 224, 222, 220, |
| 218, 216, 213, 211, 209, 206, 204, 201, |
| 199, 196, 193, 191, 188, 185, 182, 179, |
| 176, 174, 171, 168, 165, 162, 159, 156, |
| 152, 149, 146, 143, 140, 137, 134, 131, |
| 128, 124, 121, 118, 115, 112, 109, 106, |
| 103, 99, 96, 93, 90, 87, 84, 81, |
| 79, 76, 73, 70, 67, 64, 62, 59, |
| 56, 54, 51, 49, 46, 44, 42, 39, |
| 37, 35, 33, 31, 29, 27, 25, 23, |
| 21, 19, 18, 16, 15, 13, 12, 10, |
| 9, 8, 7, 6, 5, 4, 3, 3, |
| 2, 1, 1, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 1, 1, |
| 2, 3, 3, 4, 5, 6, 7, 8, |
| 9, 10, 12, 13, 15, 16, 18, 19, |
| 21, 23, 25, 27, 29, 31, 33, 35, |
| 37, 39, 42, 44, 46, 49, 51, 54, |
| 56, 59, 62, 64, 67, 70, 73, 76, |
| 79, 81, 84, 87, 90, 93, 96, 99, |
| 103, 106, 109, 112, 115, 118, 121, 124 |
| }; |
| |
| |
| void |
| gst_video_test_src_zoneplate (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int t = v->n_frames; |
| int w = frame->info.width, h = frame->info.height; |
| int xreset = -(w / 2) - v->xoffset; /* starting values for x^2 and y^2, centering the ellipse */ |
| int yreset = -(h / 2) - v->yoffset; |
| |
| int x, y; |
| int accum_kx; |
| int accum_kxt; |
| int accum_ky; |
| int accum_kyt; |
| int accum_kxy; |
| int kt; |
| int kt2; |
| int ky2; |
| int delta_kxt = v->kxt * t; |
| int delta_kxy; |
| int scale_kxy = 0xffff / (w / 2); |
| int scale_kx2 = 0xffff / w; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| /* Zoneplate equation: |
| * |
| * phase = k0 + kx*x + ky*y + kt*t |
| * + kxt*x*t + kyt*y*t + kxy*x*y |
| * + kx2*x*x + ky2*y*y + Kt2*t*t |
| */ |
| |
| #if 0 |
| for (j = 0, y = yreset; j < h; j++, y++) { |
| for (i = 0, x = xreset; i < w; i++, x++) { |
| |
| /* zero order */ |
| int phase = v->k0; |
| |
| /* first order */ |
| phase = phase + (v->kx * i) + (v->ky * j) + (v->kt * t); |
| |
| /* cross term */ |
| /* phase = phase + (v->kxt * i * t) + (v->kyt * j * t); */ |
| /* phase = phase + (v->kxy * x * y) / (w/2); */ |
| |
| /*second order */ |
| /*normalise x/y terms to rate of change of phase at the picture edge */ |
| phase = |
| phase + ((v->kx2 * x * x) / w) + ((v->ky2 * y * y) / h) + |
| ((v->kt2 * t * t) >> 1); |
| |
| color.Y = sine_table[phase & 0xff]; |
| |
| color.R = color.Y; |
| color.G = color.Y; |
| color.B = color.Y; |
| p->paint_tmpline (p, i, 1); |
| } |
| } |
| #endif |
| |
| /* optimised version, with original code shown in comments */ |
| accum_ky = 0; |
| accum_kyt = 0; |
| kt = v->kt * t; |
| kt2 = v->kt2 * t * t; |
| for (j = 0, y = yreset; j < h; j++, y++) { |
| accum_kx = 0; |
| accum_kxt = 0; |
| accum_ky += v->ky; |
| accum_kyt += v->kyt * t; |
| delta_kxy = v->kxy * y * scale_kxy; |
| accum_kxy = delta_kxy * xreset; |
| ky2 = (v->ky2 * y * y) / h; |
| for (i = 0, x = xreset; i < w; i++, x++) { |
| |
| /* zero order */ |
| int phase = v->k0; |
| |
| /* first order */ |
| accum_kx += v->kx; |
| /* phase = phase + (v->kx * i) + (v->ky * j) + (v->kt * t); */ |
| phase = phase + accum_kx + accum_ky + kt; |
| |
| /* cross term */ |
| accum_kxt += delta_kxt; |
| accum_kxy += delta_kxy; |
| /* phase = phase + (v->kxt * i * t) + (v->kyt * j * t); */ |
| phase = phase + accum_kxt + accum_kyt; |
| |
| /* phase = phase + (v->kxy * x * y) / (w/2); */ |
| /* phase = phase + accum_kxy / (w/2); */ |
| phase = phase + (accum_kxy >> 16); |
| |
| /*second order */ |
| /*normalise x/y terms to rate of change of phase at the picture edge */ |
| /*phase = phase + ((v->kx2 * x * x)/w) + ((v->ky2 * y * y)/h) + ((v->kt2 * t * t)>>1); */ |
| phase = phase + ((v->kx2 * x * x * scale_kx2) >> 16) + ky2 + (kt2 >> 1); |
| |
| p->tmpline_u8[i] = sine_table[phase & 0xff]; |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_chromazoneplate (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int t = v->n_frames; |
| int w = frame->info.width, h = frame->info.height; |
| |
| int xreset = -(w / 2) - v->xoffset; /* starting values for x^2 and y^2, centering the ellipse */ |
| int yreset = -(h / 2) - v->yoffset; |
| |
| int x, y; |
| int accum_kx; |
| int accum_kxt; |
| int accum_ky; |
| int accum_kyt; |
| int accum_kxy; |
| int kt; |
| int kt2; |
| int ky2; |
| int delta_kxt = v->kxt * t; |
| int delta_kxy; |
| int scale_kxy = 0xffff / (w / 2); |
| int scale_kx2 = 0xffff / w; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| /* Zoneplate equation: |
| * |
| * phase = k0 + kx*x + ky*y + kt*t |
| * + kxt*x*t + kyt*y*t + kxy*x*y |
| * + kx2*x*x + ky2*y*y + Kt2*t*t |
| */ |
| |
| /* optimised version, with original code shown in comments */ |
| accum_ky = 0; |
| accum_kyt = 0; |
| kt = v->kt * t; |
| kt2 = v->kt2 * t * t; |
| for (j = 0, y = yreset; j < h; j++, y++) { |
| accum_kx = 0; |
| accum_kxt = 0; |
| accum_ky += v->ky; |
| accum_kyt += v->kyt * t; |
| delta_kxy = v->kxy * y * scale_kxy; |
| accum_kxy = delta_kxy * xreset; |
| ky2 = (v->ky2 * y * y) / h; |
| for (i = 0, x = xreset; i < w; i++, x++) { |
| |
| /* zero order */ |
| int phase = v->k0; |
| |
| /* first order */ |
| accum_kx += v->kx; |
| /* phase = phase + (v->kx * i) + (v->ky * j) + (v->kt * t); */ |
| phase = phase + accum_kx + accum_ky + kt; |
| |
| /* cross term */ |
| accum_kxt += delta_kxt; |
| accum_kxy += delta_kxy; |
| /* phase = phase + (v->kxt * i * t) + (v->kyt * j * t); */ |
| phase = phase + accum_kxt + accum_kyt; |
| |
| /* phase = phase + (v->kxy * x * y) / (w/2); */ |
| /* phase = phase + accum_kxy / (w/2); */ |
| phase = phase + (accum_kxy >> 16); |
| |
| /*second order */ |
| /*normalise x/y terms to rate of change of phase at the picture edge */ |
| /*phase = phase + ((v->kx2 * x * x)/w) + ((v->ky2 * y * y)/h) + ((v->kt2 * t * t)>>1); */ |
| phase = phase + ((v->kx2 * x * x * scale_kx2) >> 16) + ky2 + (kt2 >> 1); |
| |
| color.Y = 128; |
| color.U = sine_table[phase & 0xff]; |
| color.V = sine_table[phase & 0xff]; |
| |
| color.R = 128; |
| color.G = 128; |
| color.B = color.V; |
| |
| color.gray = color.Y << 8; |
| p->paint_tmpline (p, i, 1); |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| #undef SCALE_AMPLITUDE |
| void |
| gst_video_test_src_circular (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| double freq[8]; |
| int w = frame->info.width, h = frame->info.height; |
| |
| int d; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (i = 1; i < 8; i++) { |
| freq[i] = 200 * pow (2.0, -(i - 1) / 4.0); |
| } |
| |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w; i++) { |
| double dist; |
| int seg; |
| |
| dist = |
| sqrt ((2 * i - w) * (2 * i - w) + (2 * j - h) * (2 * j - |
| h)) / (2 * w); |
| seg = floor (dist * 16); |
| if (seg == 0 || seg >= 8) { |
| p->tmpline_u8[i] = 0; |
| } else { |
| d = floor (256 * dist * freq[seg] + 0.5); |
| p->tmpline_u8[i] = sine_table[d & 0xff]; |
| } |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_gamut (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int x, y; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct yuv_primary; |
| struct vts_color_struct yuv_secondary; |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| for (y = 0; y < h; y++) { |
| int region = (y * 4) / h; |
| |
| switch (region) { |
| case 0: /* black */ |
| yuv_primary = p->colors[COLOR_BLACK]; |
| yuv_secondary = p->colors[COLOR_BLACK]; |
| yuv_secondary.Y = 0; |
| break; |
| case 1: |
| yuv_primary = p->colors[COLOR_WHITE]; |
| yuv_secondary = p->colors[COLOR_WHITE]; |
| yuv_secondary.Y = 255; |
| break; |
| case 2: |
| yuv_primary = p->colors[COLOR_RED]; |
| yuv_secondary = p->colors[COLOR_RED]; |
| yuv_secondary.V = 255; |
| break; |
| case 3: |
| yuv_primary = p->colors[COLOR_BLUE]; |
| yuv_secondary = p->colors[COLOR_BLUE]; |
| yuv_secondary.U = 255; |
| break; |
| } |
| |
| for (x = 0; x < w; x += 8) { |
| int len = MIN (8, w - x); |
| |
| if ((x ^ y) & (1 << 4)) { |
| p->color = &yuv_primary; |
| } else { |
| p->color = &yuv_secondary; |
| } |
| p->paint_tmpline (p, x, len); |
| } |
| videotestsrc_convert_tmpline (p, frame, y); |
| } |
| } |
| |
| void |
| gst_video_test_src_ball (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| int t = v->n_frames; |
| double x, y; |
| int radius = 20; |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| x = radius + (0.5 + 0.5 * sin (2 * G_PI * t / 200)) * (w - 2 * radius); |
| y = radius + (0.5 + 0.5 * sin (2 * G_PI * sqrt (2) * t / 200)) * (h - |
| 2 * radius); |
| |
| for (i = 0; i < h; i++) { |
| if (i < y - radius || i > y + radius) { |
| memset (p->tmpline_u8, 0, w); |
| } else { |
| int r = rint (sqrt (radius * radius - (i - y) * (i - y))); |
| int x1, x2; |
| int j; |
| |
| x1 = 0; |
| x2 = MAX (0, x - r); |
| for (j = x1; j < x2; j++) { |
| p->tmpline_u8[j] = 0; |
| } |
| |
| x1 = MAX (0, x - r); |
| x2 = MIN (w, x + r + 1); |
| for (j = x1; j < x2; j++) { |
| double rr = radius - sqrt ((j - x) * (j - x) + (i - y) * (i - y)); |
| |
| rr *= 0.5; |
| p->tmpline_u8[j] = CLAMP ((int) floor (256 * rr), 0, 255); |
| } |
| |
| x1 = MIN (w, x + r + 1); |
| x2 = w; |
| for (j = x1; j < x2; j++) { |
| p->tmpline_u8[j] = 0; |
| } |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, i); |
| } |
| } |
| |
| static void |
| paint_tmpline_ARGB (paintinfo * p, int x, int w) |
| { |
| int offset; |
| guint32 value; |
| |
| #if G_BYTE_ORDER == G_LITTLE_ENDIAN |
| value = (p->color->A << 0) | (p->color->R << 8) | |
| (p->color->G << 16) | (p->color->B << 24); |
| #else |
| value = (p->color->A << 24) | (p->color->R << 16) | |
| (p->color->G << 8) | (p->color->B << 0); |
| #endif |
| |
| offset = (x * 4); |
| video_test_src_orc_splat_u32 (p->tmpline + offset, value, w); |
| } |
| |
| static void |
| paint_tmpline_AYUV (paintinfo * p, int x, int w) |
| { |
| int offset; |
| guint32 value; |
| |
| #if G_BYTE_ORDER == G_LITTLE_ENDIAN |
| value = (p->color->A << 0) | (p->color->Y << 8) | |
| (p->color->U << 16) | ((guint32) p->color->V << 24); |
| #else |
| value = ((guint32) p->color->A << 24) | (p->color->Y << 16) | |
| (p->color->U << 8) | (p->color->V << 0); |
| #endif |
| |
| offset = (x * 4); |
| video_test_src_orc_splat_u32 (p->tmpline + offset, value, w); |
| } |
| |
| static void |
| convert_hline_generic (paintinfo * p, GstVideoFrame * frame, int y) |
| { |
| const GstVideoFormatInfo *finfo, *uinfo; |
| gint line, offset, i, width, height, bits; |
| guint n_lines; |
| gpointer dest; |
| |
| finfo = frame->info.finfo; |
| uinfo = gst_video_format_get_info (finfo->unpack_format); |
| |
| width = GST_VIDEO_FRAME_WIDTH (frame); |
| height = GST_VIDEO_FRAME_HEIGHT (frame); |
| |
| bits = GST_VIDEO_FORMAT_INFO_DEPTH (uinfo, 0); |
| |
| n_lines = p->n_lines; |
| offset = p->offset; |
| line = y % n_lines; |
| dest = p->lines[line]; |
| |
| if (bits == 16) { |
| /* 16 bits */ |
| for (i = 0; i < width; i++) { |
| p->tmpline_u16[i * 4 + 0] = TO_16 (p->tmpline[i * 4 + 0]); |
| p->tmpline_u16[i * 4 + 1] = TO_16 (p->tmpline[i * 4 + 1]); |
| p->tmpline_u16[i * 4 + 2] = TO_16 (p->tmpline[i * 4 + 2]); |
| p->tmpline_u16[i * 4 + 3] = TO_16 (p->tmpline[i * 4 + 3]); |
| } |
| memcpy (dest, p->tmpline_u16, width * 8); |
| } else { |
| memcpy (dest, p->tmpline, width * 4); |
| } |
| |
| if (line - offset == n_lines - 1) { |
| gpointer lines[8]; |
| guint idx; |
| |
| y -= n_lines - 1; |
| |
| for (i = 0; i < n_lines; i++) { |
| idx = CLAMP (y + i + offset, 0, height - 1); |
| lines[i] = p->lines[idx % n_lines]; |
| } |
| |
| if (p->subsample) |
| gst_video_chroma_resample (p->subsample, lines, width); |
| |
| for (i = 0; i < n_lines; i++) { |
| idx = y + i + offset; |
| if (idx > height - 1) |
| break; |
| finfo->pack_func (finfo, GST_VIDEO_PACK_FLAG_NONE, |
| lines[i], 0, frame->data, frame->info.stride, |
| frame->info.chroma_site, idx, width); |
| } |
| } |
| } |
| |
| static void |
| convert_hline_bayer (paintinfo * p, GstVideoFrame * frame, int y) |
| { |
| int i; |
| guint8 *data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0); |
| guint8 *R = data + y * GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0); |
| guint8 *argb = p->tmpline; |
| gint width = GST_VIDEO_FRAME_WIDTH (frame); |
| int x_inv = p->x_invert; |
| int y_inv = p->y_invert; |
| |
| if ((y ^ y_inv) & 1) { |
| for (i = 0; i < width; i++) { |
| if ((i ^ x_inv) & 1) { |
| R[i] = argb[4 * i + 1]; |
| } else { |
| R[i] = argb[4 * i + 2]; |
| } |
| } |
| } else { |
| for (i = 0; i < width; i++) { |
| if ((i ^ x_inv) & 1) { |
| R[i] = argb[4 * i + 2]; |
| } else { |
| R[i] = argb[4 * i + 3]; |
| } |
| } |
| } |
| } |
| |
| void |
| gst_video_test_src_pinwheel (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| int k; |
| int t = v->n_frames; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int w = frame->info.width, h = frame->info.height; |
| double c[20]; |
| double s[20]; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (k = 0; k < 19; k++) { |
| double theta = M_PI / 19 * k + 0.001 * v->kt * t; |
| c[k] = cos (theta); |
| s[k] = sin (theta); |
| } |
| |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w; i++) { |
| double v; |
| v = 0; |
| for (k = 0; k < 19; k++) { |
| double x, y; |
| |
| x = c[k] * (i - 0.5 * w) + s[k] * (j - 0.5 * h); |
| x *= 1.0; |
| |
| y = CLAMP (x, -1, 1); |
| if (k & 1) |
| y = -y; |
| |
| v += y; |
| } |
| |
| p->tmpline_u8[i] = CLAMP (rint (v * 128 + 128), 0, 255); |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_spokes (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| int k; |
| int t = v->n_frames; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int w = frame->info.width, h = frame->info.height; |
| double c[20]; |
| double s[20]; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (k = 0; k < 19; k++) { |
| double theta = M_PI / 19 * k + 0.001 * v->kt * t; |
| c[k] = cos (theta); |
| s[k] = sin (theta); |
| } |
| |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w; i++) { |
| double v; |
| v = 0; |
| for (k = 0; k < 19; k++) { |
| double x, y; |
| double sharpness = 1.0; |
| double linewidth = 2.0; |
| |
| x = c[k] * (i - 0.5 * w) + s[k] * (j - 0.5 * h); |
| x = linewidth * 0.5 - fabs (x); |
| x *= sharpness; |
| |
| y = CLAMP (x + 0.5, 0.0, 1.0); |
| |
| v += y; |
| } |
| |
| p->tmpline_u8[i] = CLAMP (rint (v * 255), 0, 255); |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_gradient (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (j = 0; j < h; j++) { |
| int y = j * 255.0 / h; |
| for (i = 0; i < w; i++) { |
| p->tmpline_u8[i] = y; |
| } |
| videotestsrc_blend_line (v, p->tmpline, p->tmpline_u8, |
| &p->foreground_color, &p->background_color, w); |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |
| |
| void |
| gst_video_test_src_colors (GstVideoTestSrc * v, GstVideoFrame * frame) |
| { |
| int i; |
| int j; |
| paintinfo pi = PAINT_INFO_INIT; |
| paintinfo *p = π |
| struct vts_color_struct color; |
| int w = frame->info.width, h = frame->info.height; |
| |
| videotestsrc_setup_paintinfo (v, p, w, h); |
| |
| color = p->colors[COLOR_BLACK]; |
| p->color = &color; |
| |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w; i++) { |
| p->tmpline[i * 4 + 0] = 0xff; |
| p->tmpline[i * 4 + 1] = ((i * 4096) / w) % 256; |
| p->tmpline[i * 4 + 2] = (((j * 16) / h) << 4) | ((i * 16) / w); |
| p->tmpline[i * 4 + 3] = ((j * 4096) / h) % 256; |
| } |
| videotestsrc_convert_tmpline (p, frame, j); |
| } |
| } |