OpenGl immediate mode: drawnode.c

Part of T49043

1 files changed, 78 insertions, 42 deletions

diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index ee93344cdae..7367cc43127 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -353,6 +353,7 @@ static void node_draw_frame_label(bNodeTree *ntree, bNode *node, const float asp
 	const int font_size = data->label_size / aspect;
 	const float margin = (float)(NODE_DY / 4);
 	int label_height;
+	unsigned char color[3];
 
 	nodeLabel(ntree, node, label, sizeof(label));
 
@@ -361,7 +362,8 @@ static void node_draw_frame_label(bNodeTree *ntree, bNode *node, const float asp
 	BLF_size(fontid, MIN2(24, font_size), U.dpi); /* clamp otherwise it can suck up a LOT of memory */
 	
 	/* title color */
-	UI_ThemeColorBlendShade(TH_TEXT, color_id, 0.4f, 10);
+	UI_GetThemeColorBlendShade3ubv(TH_TEXT, color_id, 0.4f, 10, color);
+	BLF_color3ubv(fontid, color);
 
 	width = BLF_width(fontid, label, sizeof(label));
 	ascender = BLF_ascender(fontid);
@@ -3267,13 +3269,19 @@ void draw_nodespace_back_pix(const bContext *C, ARegion *ar, SpaceNode *snode, b
 			    viewer_border->ymin < viewer_border->ymax)
 			{
 				rcti pixel_border;
-				UI_ThemeColor(TH_ACTIVE);
 				BLI_rcti_init(&pixel_border,
 				              x + snode->zoom * viewer_border->xmin * ibuf->x,
 				              x + snode->zoom * viewer_border->xmax * ibuf->x,
 				              y + snode->zoom * viewer_border->ymin * ibuf->y,
 				              y + snode->zoom * viewer_border->ymax * ibuf->y);
-				glaDrawBorderCorners(&pixel_border, 1.0f, 1.0f);
+
+				unsigned int pos = add_attrib(immVertexFormat(), "pos", GL_FLOAT, 2, KEEP_FLOAT);
+				immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+				immUniformThemeColor(TH_ACTIVE);
+
+				immDrawBorderCorners(pos, &pixel_border, 1.0f, 1.0f);
+
+				immUnbindProgram();
 			}
 		}
 		
@@ -3393,6 +3401,7 @@ void node_draw_link_bezier(View2D *v2d, SpaceNode *snode, bNodeLink *link,
 		float arrow[2], arrow1[2], arrow2[2];
 		const float px_fac = UI_DPI_WINDOW_FAC;
 		glGetFloatv(GL_LINE_WIDTH, &linew);
+		unsigned int pos;
 		
 		/* we can reuse the dist variable here to increment the GL curve eval amount*/
 		dist = 1.0f / (float)LINK_RESOL;
@@ -3416,57 +3425,84 @@ void node_draw_link_bezier(View2D *v2d, SpaceNode *snode, bNodeLink *link,
 			arrow[0] = coord_array[LINK_ARROW][0];
 			arrow[1] = coord_array[LINK_ARROW][1];
 		}
+
+		if (do_triple || drawarrow || (!do_shaded)) {
+			pos = add_attrib(immVertexFormat(), "pos", GL_FLOAT, 2, KEEP_FLOAT);
+			immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+		}
+
 		if (do_triple) {
-			UI_ThemeColorShadeAlpha(th_col3, -80, -120);
+			immUniformThemeColorShadeAlpha(th_col3, -80, -120);
 			glLineWidth(4.0f * px_fac);
-			
-			glBegin(GL_LINE_STRIP);
+
+			immBegin(GL_LINE_STRIP, (LINK_RESOL + 1));
+
 			for (i = 0; i <= LINK_RESOL; i++) {
-				glVertex2fv(coord_array[i]);
+				immVertex2fv(pos, coord_array[i]);
 			}
-			glEnd();
+
+			immEnd();
+
 			if (drawarrow) {
-				glBegin(GL_LINE_STRIP);
-				glVertex2fv(arrow1);
-				glVertex2fv(arrow);
-				glVertex2fv(arrow2);
-				glEnd();
+				immBegin(GL_LINE_STRIP, 3);
+				immVertex2fv(pos, arrow1);
+				immVertex2fv(pos, arrow);
+				immVertex2fv(pos, arrow2);
+				immEnd();
 			}
 		}
-		
-		/* XXX using GL_LINES for shaded node lines is a workaround
-		 * for Intel hardware, this breaks with GL_LINE_STRIP and
-		 * changing color in begin/end blocks.
-		 */
+
 		glLineWidth(1.5f * px_fac);
-		if (do_shaded) {
-			glBegin(GL_LINES);
-			for (i = 0; i < LINK_RESOL; i++) {
-				UI_ThemeColorBlend(th_col1, th_col2, spline_step);
-				glVertex2fv(coord_array[i]);
-				
-				UI_ThemeColorBlend(th_col1, th_col2, spline_step + dist);
-				glVertex2fv(coord_array[i + 1]);
-				
-				spline_step += dist;
-			}
-			glEnd();
+
+		if (drawarrow) {
+			immUniformThemeColorBlend(th_col1, th_col2, 0.5f);
+
+			immBegin(GL_LINE_STRIP, 3);
+			immVertex2fv(pos, arrow1);
+			immVertex2fv(pos, arrow);
+			immVertex2fv(pos, arrow2);
+			immEnd();
 		}
-		else {
-			UI_ThemeColor(th_col1);
-			glBegin(GL_LINE_STRIP);
+
+		if (!do_shaded) {
+			immUniformThemeColor(th_col1);
+
+			immBegin(GL_LINE_STRIP, (LINK_RESOL + 1));
+
 			for (i = 0; i <= LINK_RESOL; i++) {
-				glVertex2fv(coord_array[i]);
+				immVertex2fv(pos, coord_array[i]);
 			}
-			glEnd();
+
+			immEnd();
 		}
-		
-		if (drawarrow) {
-			glBegin(GL_LINE_STRIP);
-			glVertex2fv(arrow1);
-			glVertex2fv(arrow);
-			glVertex2fv(arrow2);
-			glEnd();
+
+		if (do_triple || drawarrow || (!do_shaded)) {
+			immUnbindProgram();
+		}
+
+		if (do_shaded) {
+			unsigned char col[3];
+
+			VertexFormat *format = immVertexFormat();
+			pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
+			unsigned int color = add_attrib(format, "color", GL_UNSIGNED_BYTE, 3, NORMALIZE_INT_TO_FLOAT);
+
+			immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
+
+			immBegin(GL_LINE_STRIP, (LINK_RESOL + 1));
+
+			for (i = 0; i <= LINK_RESOL; i++) {
+				UI_GetThemeColorBlend3ubv(th_col1, th_col2, spline_step, col);
+				immAttrib3ubv(color, col);
+
+				immVertex2fv(pos, coord_array[i]);
+
+				spline_step += dist;
+			}
+
+			immEnd();
+
+			immUnbindProgram();
 		}
 		
 		glDisable(GL_LINE_SMOOTH);