| /* GStreamer |
| * |
| * Copyright (C) 2016 Igalia |
| * |
| * Authors: |
| * Víctor Manuel Jáquez Leal <vjaquez@igalia.com> |
| * Javier Martin <javiermartin@by.com.es> |
| * |
| * 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 |
| |
| #include <stdint.h> |
| #include <unistd.h> |
| |
| #include <drm_fourcc.h> |
| #include <dirent.h> |
| #include <string.h> |
| |
| #include "gstkmsutils.h" |
| |
| /* *INDENT-OFF* */ |
| static const struct |
| { |
| guint32 fourcc; |
| GstVideoFormat format; |
| } format_map[] = { |
| #define DEF_FMT(fourcc, fmt) \ |
| { DRM_FORMAT_##fourcc,GST_VIDEO_FORMAT_##fmt } |
| |
| /* DEF_FMT (XRGB1555, ???), */ |
| /* DEF_FMT (XBGR1555, ???), */ |
| #if G_BYTE_ORDER == G_LITTLE_ENDIAN |
| DEF_FMT (ARGB8888, BGRA), |
| DEF_FMT (XRGB8888, BGRx), |
| DEF_FMT (ABGR8888, RGBA), |
| DEF_FMT (XBGR8888, RGBx), |
| #else |
| DEF_FMT (ARGB8888, ARGB), |
| DEF_FMT (XRGB8888, xRGB), |
| DEF_FMT (ABGR8888, ABGR), |
| DEF_FMT (XBGR8888, xBGR), |
| #endif |
| DEF_FMT (UYVY, UYVY), |
| DEF_FMT (YUYV, YUY2), |
| DEF_FMT (YVYU, YVYU), |
| DEF_FMT (YUV420, I420), |
| DEF_FMT (YVU420, YV12), |
| DEF_FMT (YUV422, Y42B), |
| DEF_FMT (NV12, NV12), |
| DEF_FMT (P010, NV12_10LE), |
| DEF_FMT (NV21, NV21), |
| DEF_FMT (NV16, NV16), |
| |
| #undef DEF_FMT |
| }; |
| /* *INDENT-ON* */ |
| |
| GstVideoFormat |
| gst_video_format_from_drm (guint32 drmfmt) |
| { |
| gint i; |
| |
| for (i = 0; i < G_N_ELEMENTS (format_map); i++) { |
| if (format_map[i].fourcc == drmfmt) |
| return format_map[i].format; |
| } |
| |
| return GST_VIDEO_FORMAT_UNKNOWN; |
| } |
| |
| guint32 |
| gst_drm_format_from_video (GstVideoFormat fmt) |
| { |
| gint i; |
| |
| for (i = 0; i < G_N_ELEMENTS (format_map); i++) { |
| if (format_map[i].format == fmt) |
| return format_map[i].fourcc; |
| } |
| |
| return 0; |
| } |
| |
| guint32 |
| gst_drm_bpp_from_drm (guint32 drmfmt) |
| { |
| guint32 bpp; |
| |
| switch (drmfmt) { |
| case DRM_FORMAT_YUV420: |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YUV422: |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV21: |
| case DRM_FORMAT_NV16: |
| bpp = 8; |
| break; |
| case DRM_FORMAT_P010: |
| bpp = 10; |
| break; |
| case DRM_FORMAT_UYVY: |
| case DRM_FORMAT_YUYV: |
| case DRM_FORMAT_YVYU: |
| bpp = 16; |
| break; |
| default: |
| bpp = 32; |
| break; |
| } |
| |
| return bpp; |
| } |
| |
| guint32 |
| gst_drm_alignment_from_drm_format (guint32 drmfmt) |
| { |
| guint32 alignment; |
| |
| switch (drmfmt) { |
| case DRM_FORMAT_YUV420: |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YUV422: |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV21: |
| case DRM_FORMAT_NV16: |
| case DRM_FORMAT_UYVY: |
| case DRM_FORMAT_YUYV: |
| case DRM_FORMAT_YVYU: |
| alignment = 2; |
| break; |
| default: |
| alignment = 1; |
| break; |
| } |
| |
| return alignment; |
| } |
| |
| guint32 |
| gst_drm_height_from_drm (guint32 drmfmt, guint32 height) |
| { |
| guint32 ret; |
| |
| switch (drmfmt) { |
| case DRM_FORMAT_YUV420: |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YUV422: |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV21: |
| case DRM_FORMAT_P010: |
| ret = height * 3 / 2; |
| break; |
| case DRM_FORMAT_NV16: |
| ret = height * 2; |
| break; |
| default: |
| ret = height; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static GstStructure * |
| gst_video_format_to_structure (GstVideoFormat format) |
| { |
| GstStructure *structure; |
| |
| structure = NULL; |
| if (format != GST_VIDEO_FORMAT_UNKNOWN) |
| structure = gst_structure_new ("video/x-raw", "format", G_TYPE_STRING, |
| gst_video_format_to_string (format), NULL); |
| |
| return structure; |
| } |
| |
| GstCaps * |
| gst_kms_sink_caps_template_fill (void) |
| { |
| gint i; |
| GstCaps *caps; |
| GstStructure *template; |
| |
| caps = gst_caps_new_empty (); |
| for (i = 0; i < G_N_ELEMENTS (format_map); i++) { |
| template = gst_video_format_to_structure (format_map[i].format); |
| gst_structure_set (template, |
| "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
| "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
| "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL); |
| gst_caps_append_structure (caps, template); |
| } |
| return gst_caps_simplify (caps); |
| } |
| |
| static const gint device_par_map[][2] = { |
| {1, 1}, /* regular screen */ |
| {16, 15}, /* PAL TV */ |
| {11, 10}, /* 525 line Rec.601 video */ |
| {54, 59}, /* 625 line Rec.601 video */ |
| {64, 45}, /* 1280x1024 on 16:9 display */ |
| {5, 3}, /* 1280x1024 on 4:3 display */ |
| {4, 3} /* 800x600 on 16:9 display */ |
| }; |
| |
| #define DELTA(ratio, idx, w) \ |
| (ABS(ratio - ((gdouble)device_par_map[idx][w] / device_par_map[idx][!(w)]))) |
| |
| void |
| gst_video_calculate_device_ratio (guint dev_width, guint dev_height, |
| guint dev_width_mm, guint dev_height_mm, |
| guint * dpy_par_n, guint * dpy_par_d) |
| { |
| gdouble ratio, delta, cur_delta; |
| gint i, j, index, windex; |
| |
| /* First, calculate the "real" ratio based on the X values; which is |
| * the "physical" w/h divided by the w/h in pixels of the display */ |
| if (dev_width == 0 || dev_height == 0 |
| || dev_width_mm == 0 || dev_height_mm == 0) |
| ratio = 1.0; |
| else |
| ratio = (gdouble) (dev_width_mm * dev_height) / (dev_height_mm * dev_width); |
| |
| /* Now, find the one from device_par_map[][2] with the lowest delta |
| * to the real one */ |
| delta = DELTA (ratio, 0, 0); |
| index = 0; |
| windex = 0; |
| |
| for (i = 1; i < G_N_ELEMENTS (device_par_map); i++) { |
| for (j = 0; j < 2; j++) { |
| cur_delta = DELTA (ratio, i, j); |
| if (cur_delta < delta) { |
| index = i; |
| windex = j; |
| delta = cur_delta; |
| } |
| } |
| } |
| |
| if (dpy_par_n) |
| *dpy_par_n = device_par_map[index][windex]; |
| |
| if (dpy_par_d) |
| *dpy_par_d = device_par_map[index][windex ^ 1]; |
| } |
| |
| const gchar * |
| get_imx_drm_device_name (void) |
| { |
| struct dirent **entry_list; |
| guint count; |
| guint i; |
| const gchar * device; |
| const gchar * scan_path; |
| |
| if (access ("/proc/device-tree/passthrough", F_OK) == 0) { |
| scan_path = "/proc/device-tree/passthrough"; |
| } else { |
| scan_path = "/proc/device-tree"; |
| } |
| |
| count = scandir (scan_path, &entry_list, 0, alphasort); |
| if (count < 0) |
| return NULL; |
| |
| for (i = 0; i < count; i++) { |
| struct dirent *entry; |
| |
| entry = entry_list[i]; |
| if (strstr (entry->d_name, "dpu@")) { |
| device = "DPU"; |
| break; |
| } |
| |
| if (strstr (entry->d_name, "dcss@")) { |
| device = "DCSS"; |
| break; |
| } |
| } |
| |
| for (i = 0; i < count; i++) { |
| g_free (entry_list[i]); |
| } |
| g_free (entry_list); |
| |
| return device; |
| } |