Sorry, three commits in one, became difficult to untangle..

Editors Modules

* render/ module added in editors, moved the preview render code there and
  also shading related operators.
* physics/ module made more consistent with other modules. renaming files,
  making a single physics_ops.c for operators and keymaps. Also move all
  particle related operators here now.
* space_buttons/ now should have only operators relevant to the buttons
  specificially.

Updates & Notifiers

* Material/Texture/World/Lamp can now be passed to DAG_id_flush_update,
  which will go back to a callback in editors. Eventually these should
  be in the depsgraph itself, but for now this gives a unified call for
  doing updates.
* GLSL materials are now refreshed on changes. There's still various
  cases missing, 
* Preview icons now hook into this system, solving various update cases
  that were missed before.
* Also fixes issue in my last commit, where some preview would not render,
  problem is avoided in the new system.

Icon Rendering

* On systems with support for non-power of two textures, an OpenGL texture
  is now used instead of glDrawPixels. This avoids problems with icons get
  clipped on region borders. On my Linux desktop, this gives an 1.1x speedup,
  and on my Mac laptop a 2.3x speedup overall in redrawing the full window,
  with the default setup. The glDrawPixels implementation on Mac seems to
  have a lot of overhread.
* Preview icons are now drawn using proper premul alpha, and never faded so
  you can see them clearly.
* Also tried to fix issue with texture node preview rendering, globals can't
  be used with threads reliably.

1 files changed, 8 insertions, 8 deletions

diff --git a/source/blender/editors/interface/interface_widgets.c b/source/blender/editors/interface/interface_widgets.c
index d9a6c50315a..007a57fb67a 100644
--- a/source/blender/editors/interface/interface_widgets.c
+++ b/source/blender/editors/interface/interface_widgets.c
@@ -697,7 +697,7 @@ static void widgetbase_draw(uiWidgetBase *wtb, uiWidgetColors *wcol)
 /* icons have been standardized... and this call draws in untransformed coordinates */
 #define ICON_HEIGHT		16.0f
 
-static void widget_draw_icon(uiBut *but, BIFIconID icon, int blend, rcti *rect)
+static void widget_draw_icon(uiBut *but, BIFIconID icon, float alpha, rcti *rect)
 {
 	int xs=0, ys=0;
 	float aspect, height;
@@ -724,7 +724,7 @@ static void widget_draw_icon(uiBut *but, BIFIconID icon, int blend, rcti *rect)
 	if ELEM4(but->type, TOG, ROW, TOGN, LISTROW) {
 		if(but->flag & UI_SELECT);
 		else if(but->flag & UI_ACTIVE);
-		else blend= -60;
+		else alpha= 0.5f;
 	}
 	
 	glEnable(GL_BLEND);
@@ -757,14 +757,14 @@ static void widget_draw_icon(uiBut *but, BIFIconID icon, int blend, rcti *rect)
 			ys= (rect->ymin+rect->ymax- height)/2;
 		}
 	
-		UI_icon_draw_aspect_blended(xs, ys, icon, aspect, blend);
+		UI_icon_draw_aspect(xs, ys, icon, aspect, alpha);
 	}
 	
 	if(but->flag & UI_ICON_SUBMENU) {
 		xs= rect->xmax-17;
 		ys= (rect->ymin+rect->ymax- height)/2;
 		
-		UI_icon_draw_aspect_blended(xs, ys, ICON_RIGHTARROW_THIN, aspect, blend);
+		UI_icon_draw_aspect(xs, ys, ICON_RIGHTARROW_THIN, aspect, alpha);
 	}
 	
 	glDisable(GL_BLEND);
@@ -902,7 +902,7 @@ static void widget_draw_text_icon(uiFontStyle *fstyle, uiWidgetColors *wcol, uiB
 	
 	/* check for button text label */
 	if (but->type == ICONTEXTROW) {
-		widget_draw_icon(but, (BIFIconID) (but->icon+but->iconadd), 0, rect);
+		widget_draw_icon(but, (BIFIconID) (but->icon+but->iconadd), 1.0f, rect);
 	}
 	else {
 				
@@ -913,14 +913,14 @@ static void widget_draw_text_icon(uiFontStyle *fstyle, uiWidgetColors *wcol, uiB
 			else if(but->pointype==INT)
 				dualset= BTST( *(((int *)but->poin)+1), but->bitnr);
 			
-			widget_draw_icon(but, ICON_DOT, dualset?0:-100, rect);
+			widget_draw_icon(but, ICON_DOT, dualset?1.0f:0.25f, rect);
 		}
 		
 		/* If there's an icon too (made with uiDefIconTextBut) then draw the icon
 		and offset the text label to accomodate it */
 		
 		if (but->flag & UI_HAS_ICON) {
-			widget_draw_icon(but, but->icon+but->iconadd, 0, rect);
+			widget_draw_icon(but, but->icon+but->iconadd, 1.0f, rect);
 			
 			rect->xmin += UI_icon_get_width(but->icon+but->iconadd);
 			
@@ -2581,7 +2581,7 @@ void ui_draw_menu_item(uiFontStyle *fstyle, rcti *rect, char *name, int iconid,
 		int xs= rect->xmin+4;
 		int ys= 1 + (rect->ymin+rect->ymax- ICON_HEIGHT)/2;
 		glEnable(GL_BLEND);
-		UI_icon_draw_aspect_blended(xs, ys, iconid, 1.2f, 0); /* XXX scale weak get from fstyle? */
+		UI_icon_draw_aspect(xs, ys, iconid, 1.2f, 0.5f); /* XXX scale weak get from fstyle? */
 		glDisable(GL_BLEND);
 	}
 }