OpenGL: refactor UI_draw_roundbox functions

Each function takes a bool (filled vs outline) and a color. We already had multiple ways of passing color in; these are still here. Special variant for anti-aliasing.

- took GLenum out of interface
- removed UI_RB_ALPHA flag (only one place really used it)
- use exact vertex count
- removed redundant state changes (BLEND, LINE_SMOOTH)

1 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/editors/interface/interface_style.c b/source/blender/editors/interface/interface_style.c
index 01bce9d7bdc..01456e2e122 100644
--- a/source/blender/editors/interface/interface_style.c
+++ b/source/blender/editors/interface/interface_style.c
@@ -310,17 +310,17 @@ void UI_fontstyle_draw_simple_backdrop(
 		const float margin = height / 4.0f;
 
 		/* backdrop */
+		float color[4] = { col_bg[0], col_bg[1], col_bg[2], 0.5f };
 
-		UI_draw_roundbox_corner_set(UI_CNR_ALL | UI_RB_ALPHA);
-		UI_draw_roundbox(
+		UI_draw_roundbox_corner_set(UI_CNR_ALL);
+		UI_draw_roundbox_aa(true,
 		        x - margin,
 		        (y + decent) - margin,
 		        x + width + margin,
 		        (y + decent) + height + margin,
-		        margin, col_bg);
+		        margin, color);
 	}
 
-
 	BLF_position(fs->uifont_id, x, y, 0.0f);
 	BLF_color4fv(fs->uifont_id, col_fg);
 	BLF_draw(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);