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textoverlay: move background shading into separate function

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This commit is contained in:
Tim-Philipp Müller 2012-11-07 00:54:29 +00:00
parent a4cfe8c43c
commit 4aace8e0eb
1 changed files with 51 additions and 62 deletions
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113
ext/pango/gstbasetextoverlay.c
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@ -1598,11 +1598,55 @@ gst_base_text_overlay_render_text (GstBaseTextOverlay * overlay,
overlay->need_render = FALSE;
}
static void
gst_base_text_overlay_shade_background (GstBaseTextOverlay * overlay,
GstVideoFrame * frame, gint x0, gint x1, gint y0, gint y1)
{
switch (overlay->format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
gst_base_text_overlay_shade_planar_Y (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_UYVY:
gst_base_text_overlay_shade_packed_Y (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_xRGB:
gst_base_text_overlay_shade_xRGB (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_xBGR:
gst_base_text_overlay_shade_xBGR (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_BGRx:
gst_base_text_overlay_shade_BGRx (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_RGBx:
gst_base_text_overlay_shade_RGBx (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_ARGB:
gst_base_text_overlay_shade_ARGB (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_ABGR:
gst_base_text_overlay_shade_ABGR (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_RGBA:
gst_base_text_overlay_shade_RGBA (overlay, frame, x0, x1, y0, y1);
break;
case GST_VIDEO_FORMAT_BGRA:
gst_base_text_overlay_shade_BGRA (overlay, frame, x0, x1, y0, y1);
break;
default:
GST_FIXME_OBJECT (overlay, "implement background shading for format %s",
gst_video_format_to_string (GST_VIDEO_FRAME_FORMAT (frame)));
break;
}
}
static GstFlowReturn
gst_base_text_overlay_push_frame (GstBaseTextOverlay * overlay,
GstBuffer * video_frame)
{
gint xpos, ypos;
GstVideoFrame frame;
if (overlay->composition == NULL)
@ -1625,69 +1669,14 @@ gst_base_text_overlay_push_frame (GstBaseTextOverlay * overlay,
GST_MAP_READWRITE))
goto invalid_frame;
gst_base_text_overlay_get_pos (overlay, &xpos, &ypos);
/* shaded background box */
if (overlay->want_shading) {
switch (overlay->format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
gst_base_text_overlay_shade_planar_Y (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_UYVY:
gst_base_text_overlay_shade_packed_Y (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_xRGB:
gst_base_text_overlay_shade_xRGB (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_xBGR:
gst_base_text_overlay_shade_xBGR (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_BGRx:
gst_base_text_overlay_shade_BGRx (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_RGBx:
gst_base_text_overlay_shade_RGBx (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_ARGB:
gst_base_text_overlay_shade_ARGB (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_ABGR:
gst_base_text_overlay_shade_ABGR (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_RGBA:
gst_base_text_overlay_shade_RGBA (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_BGRA:
gst_base_text_overlay_shade_BGRA (overlay, &frame,
xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
default:
GST_FIXME_OBJECT (overlay, "implement background shading for format %s",
gst_video_format_to_string (GST_VIDEO_FRAME_FORMAT (&frame)));
break;
}
gint xpos, ypos;
gst_base_text_overlay_get_pos (overlay, &xpos, &ypos);
gst_base_text_overlay_shade_background (overlay, &frame,
xpos, xpos + overlay->image_width, ypos, ypos + overlay->image_height);
}
gst_video_overlay_composition_blend (overlay->composition, &frame);