commit 6e729092e13f9f363760f266c842d37999cc9704
author Haihua Hu <jared.hu@nxp.com> Thu Jan 18 18:25:28 2018 +0800
committer Lyon Wang <lyon.wang@nxp.com> Wed Dec 19 16:18:10 2018 +0800
tree d4c771788a0bd67dd8c12ea89efcc275414359d8
parent 4bbd140a78035b4f4e3a8c06ae50b0c5d6774cbd

kmssink: Hard code scale ratio for qxp

For qxp, we can not use setplane to try scale ratio.
Its upscale has no limitation. Add platform detect
code and hard code scale ratio for qxp

upstream status: i.MX specific

sys/kms/gstkmssink.c

diff --git a/sys/kms/gstkmssink.c b/sys/kms/gstkmssink.c
index 40c465e..3264201 100644
--- a/sys/kms/gstkmssink.c
+++ b/sys/kms/gstkmssink.c
@@ -102,6 +102,8 @@
 
 static GParamSpec *g_properties[PROP_N] = { NULL, };
 
+#define SCALE_RATIO_NO_LIMITATION 100000
+
 static void
 gst_kms_sink_set_render_rectangle (GstVideoOverlay * overlay,
     gint x, gint y, gint width, gint height)
@@ -465,6 +467,15 @@
   if (self->conn_id < 0 || !self->display_connected)
     return;
 
+  /* FIXME: for dpu, we can only hard code the scale ratio,
+   * dpu has no limitation when do upscale but can not support
+   * downscale */
+  if (strcmp (get_imx_drm_device_name(), "DPU") == 0) {
+    self->downscale_ratio = 1;
+    self->upscale_ratio = SCALE_RATIO_NO_LIMITATION;
+    return;
+  }
+
   gst_video_info_init (&vinfo);
   gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_NV12, self->hdisplay, self->vdisplay);
 
@@ -1828,14 +1839,14 @@
   if ((result.x + result.w) > self->hdisplay) {
     gint crop_width = self->hdisplay - result.x;
     if (crop_width > 0)
-      src.w = crop_width * src.w / result.w;
+      src.w = GST_ROUND_UP_2 (crop_width * src.w / result.w);
     result.w = crop_width;
   }
 
   if ((result.y + result.h) > self->vdisplay) {
     gint crop_height = self->vdisplay - result.y;
     if (crop_height > 0)
-      src.h = crop_height * src.h / result.h;
+      src.h = GST_ROUND_UP_2 (crop_height * src.h / result.h);
     result.h = crop_height;
   }
 

sys/kms/gstkmsutils.c

diff --git a/sys/kms/gstkmsutils.c b/sys/kms/gstkmsutils.c
index 4be7137..23b3cc7 100644
--- a/sys/kms/gstkmsutils.c
+++ b/sys/kms/gstkmsutils.c
@@ -28,6 +28,8 @@
 #endif
 
 #include <drm_fourcc.h>
+#include <dirent.h>
+#include <string.h>
 
 #include "gstkmsutils.h"
 
@@ -231,3 +233,38 @@
   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;
+
+  count = scandir ("/proc/device-tree", &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;
+}

sys/kms/gstkmsutils.h

diff --git a/sys/kms/gstkmsutils.h b/sys/kms/gstkmsutils.h
index 6570070..95e81f8 100644
--- a/sys/kms/gstkmsutils.h
+++ b/sys/kms/gstkmsutils.h
@@ -41,7 +41,7 @@
 						 guint dev_height_mm,
 						 guint * dpy_par_n,
 						 guint * dpy_par_d);
-
+const gchar * get_imx_drm_device_name (void);
 G_END_DECLS
 
 #endif