X-Git-Url: http://git.cinelerra-gg.org/git/?p=goodguy%2Fhistory.git;a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fbcxfer.C;fp=cinelerra-5.1%2Fguicast%2Fbcxfer.C;h=95e0c8e52b27a525c1d9e823c8de3ed4bbf06216;hp=44258127849b654483f7f52cc719b53735862e42;hb=26f3c4335351a3938db78303c57a2ba6551a2a10;hpb=ae44cc4a24c9e04ee5e3b38baf6ce529832cfb39

diff --git a/cinelerra-5.1/guicast/bcxfer.C b/cinelerra-5.1/guicast/bcxfer.C
index 44258127..95e0c8e5 100644
--- a/cinelerra-5.1/guicast/bcxfer.C
+++ b/cinelerra-5.1/guicast/bcxfer.C
@@ -6,6 +6,21 @@ void BC_Xfer::init(
 		uint8_t *in_yp, uint8_t *in_up, uint8_t *in_vp, uint8_t *in_ap, int in_rowspan,
 	int bg_color)
 {
+	this->bg_color = bg_color;
+	if( bg_color >= 0 ) {
+		this->bg_r = (bg_color>>16) & 0xff;
+		this->bg_g = (bg_color>>8) & 0xff;
+		this->bg_b = (bg_color>>0) & 0xff;
+	}
+	else { // bg_color < 0, no src blending
+		switch( in_colormodel ) {
+		case BC_RGBA8888:	in_colormodel = BC_RGBX8888;		break;
+		case BC_RGBA16161616:	in_colormodel = BC_RGBX16161616;	break;
+		case BC_YUVA8888:	in_colormodel = BC_YUVX8888;		break;
+		case BC_YUVA16161616:	in_colormodel = BC_YUVX16161616;	break;
+		case BC_RGBA_FLOAT:	in_colormodel = BC_RGBX_FLOAT;		break;
+		}
+	}
 	// prevent bounds errors on poorly dimensioned macro pixel formats
 	switch( in_colormodel ) {
 	case BC_UVY422:
@@ -67,11 +82,6 @@ void BC_Xfer::init(
 		break;
 	}
 	this->total_out_w = out_rowspan;
-	this->bg_color = bg_color;
-	this->bg_r = (bg_color>>16) & 0xff;
-	this->bg_g = (bg_color>>8) & 0xff;
-	this->bg_b = (bg_color>>0) & 0xff;
-
 	this->in_pixelsize = BC_CModels::calculate_pixelsize(in_colormodel);
 	this->out_pixelsize = BC_CModels::calculate_pixelsize(out_colormodel);
 	this->scale = (out_w != in_w) || (in_x != 0);