[Bf-blender-cvs] [39e09b8] blender-v2.75-release: Fix T45133: Crash drawing material buttons

[Campbell Barton]

Commit: 39e09b842b5c9ba456420e3258c615da533add2d
Author: Campbell Barton
Date:   Mon Jun 22 16:51:22 2015 +1000
Branches: blender-v2.75-release
https://developer.blender.org/rB39e09b842b5c9ba456420e3258c615da533add2d

Fix T45133: Crash drawing material buttons

===================================================================

M	source/blender/editors/gpencil/drawgpencil.c
M	source/blender/editors/interface/interface_icons.c

===================================================================

diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c
index ffcd204..b28c948 100644
--- a/source/blender/editors/gpencil/drawgpencil.c
+++ b/source/blender/editors/gpencil/drawgpencil.c
@@ -1111,7 +1111,13 @@ static void gp_draw_data(bGPdata *gpd, int offsx, int offsy, int winx, int winy,
 	 */
 	
 	/* turn on alpha-blending */
-	glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+	if (GLEW_VERSION_1_4) {
+		glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+	}
+	else {
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	}
+
 	glEnable(GL_BLEND);
 	
 	/* draw! */
diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index ef246c5..db1eacf 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -1228,7 +1228,13 @@ static void icon_draw_size(
 			if (!pi->rect[size]) return;  /* something has gone wrong! */
 			
 			/* preview images use premul alpha ... */
-			glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+			if (GLEW_VERSION_1_4) {
+				glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+			}
+			else {
+				glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			}
+
 			icon_draw_rect(x, y, w, h, aspect, pi->w[size], pi->h[size], pi->rect[size], alpha, rgb, is_preview);
 			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 		}