Move paint's shader to an another folder to avoid unused variable warning.

modules/paint/icons/paint_icons.h

@@ -67,40 +67,3 @@ static const unsigned char unlock_layer_png[] = {
 };
 
 // shaders block
-
-static const char *background_shader_shader_code = 
-			""
-			"shader_type canvas_item;"
-			""
-			"uniform float pixel_size : hint_range(0.01, 1.0);"
-			""
-			""
-			"void fragment() {"
-			"	vec4 color = texture(TEXTURE, UV);"
-			"	"
-			"	float light = 0.8;"
-			"	float dark = 0.4;"
-			"	"
-			"	float val = dark;"
-			"	"
-			"	if ( int(UV.y * 8.0 * pixel_size) % 2 == 1 ) {"
-			"		if ( int(UV.x * 8.0 * pixel_size) % 2 == 1 ) {"
-			"			val = dark;"
-			"		}"
-			"		else {"
-			"			val = light;"
-			"		}"
-			"	}"
-			"	else {"
-			"		if ( int(UV.x * 8.0 * pixel_size) % 2 == 1 ) {"
-			"			val = light;"
-			"		}"
-			"		else {"
-			"			val = dark;"
-			"		}"
-			"	}"
-			"	"
-			"	color.rgb = vec3(val, val, val);"
-			"	"
-			"	COLOR = color;"
-			"}";

modules/paint/paint_canvas_background.cpp

@@ -27,7 +27,7 @@ SOFTWARE.
 #include "scene/resources/material.h"
 #include "scene/resources/shader.h"
 
-#include "icons/paint_icons.h"
+#include "shaders/shaders.h"
 
 float PaintCanvasBackground::get_pixel_size() const {
 	return _pixel_size;

modules/paint/shaders/make_header.py

@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+
+import glob
+import os
+
+enc = "utf-8"
+
+# Change to the directory where the script is located,
+# so that the script can be run from any location
+os.chdir(os.path.dirname(os.path.realpath(__file__)))
+
+# Generate include files
+
+f = open("shaders.h", "wb")
+
+f.write(b"// THIS FILE HAS BEEN AUTOGENERATED, DON'T EDIT!!\n")
+
+# Generate png image block
+f.write(b"\n// png image block\n")
+
+pixmaps = glob.glob("*.png")
+pixmaps.sort()
+
+for x in pixmaps:
+
+    var_str = x[:-4] + "_png"
+
+    s = "\nstatic const unsigned char " + var_str + "[] = {\n\t"
+    f.write(s.encode(enc))
+
+    pngf = open(x, "rb")
+
+    b = pngf.read(1)
+    while len(b) == 1:
+        f.write(hex(ord(b)).encode(enc))
+        b = pngf.read(1)
+        if len(b) == 1:
+            f.write(b", ")
+
+    f.write(b"\n};\n")
+    pngf.close()
+
+# Generate shaders block
+f.write(b"\n// shaders block\n")
+
+shaders = glob.glob("*.gsl")
+shaders.sort()
+
+for x in shaders:
+
+    var_str = x[:-4] + "_shader_code"
+
+    s = "\nstatic const char *" + var_str + " = \n"
+    f.write(s.encode(enc))
+
+    sf = open(x, "rb")
+
+    b = sf.readline()
+    while b != b"":
+        if b.endswith(b"\r\n"):
+            b = b[:-2]
+            
+        if b.endswith(b"\n"):
+            b = b[:-1]
+
+        s = b'			"' + b
+        f.write(s)
+        b = sf.readline()
+
+        if b != b"":
+            f.write(b'"\n')
+
+    f.write(b'";\n')
+    sf.close()
+
+f.close()
+

modules/paint/shaders/shaders.h

@@ -0,0 +1,42 @@
+// THIS FILE HAS BEEN AUTOGENERATED, DON'T EDIT!!
+
+// png image block
+
+// shaders block
+
+static const char *background_shader_shader_code = 
+			""
+			"shader_type canvas_item;"
+			""
+			"uniform float pixel_size : hint_range(0.01, 1.0);"
+			""
+			""
+			"void fragment() {"
+			"	vec4 color = texture(TEXTURE, UV);"
+			"	"
+			"	float light = 0.8;"
+			"	float dark = 0.4;"
+			"	"
+			"	float val = dark;"
+			"	"
+			"	if ( int(UV.y * 8.0 * pixel_size) % 2 == 1 ) {"
+			"		if ( int(UV.x * 8.0 * pixel_size) % 2 == 1 ) {"
+			"			val = dark;"
+			"		}"
+			"		else {"
+			"			val = light;"
+			"		}"
+			"	}"
+			"	else {"
+			"		if ( int(UV.x * 8.0 * pixel_size) % 2 == 1 ) {"
+			"			val = light;"
+			"		}"
+			"		else {"
+			"			val = dark;"
+			"		}"
+			"	}"
+			"	"
+			"	color.rgb = vec3(val, val, val);"
+			"	"
+			"	COLOR = color;"
+			"}";