Add 'brushed metal' texture

pui/textures.cpp

@@ -49,6 +49,26 @@ void PTextures::InitTextures()
 	}
 	BindTexture(TEX_BACKTILE, size, size, buffer, GL_LUMINANCE);
 
+	/* Create brushed background tile */
+	for (int i = 0; i < size * size; i++) {
+		buffer[i] = (rand() & 0x3F) + 0x80;
+//		buffer[i] += 0x20 * sin(((i + 0 / size) % size) * M_PI / size);
+	}
+
+	for (int i = 0; i < size; i++) {
+		uint8_t *row = &buffer[i * size];
+		uint8_t tmp[size];
+		for (int j = 0; j < size; j++) {
+			uint16_t t = 0;
+			for (int k = 0; k < 19; k++) {
+				t += row[(j + k) % size];
+			}
+			tmp[j] = t / 19;
+		}
+		memcpy(row, tmp, size);
+	}
+	BindTexture(TEX_BACKTILE2, size, size, buffer, GL_LUMINANCE);
+
 	/* Create glow, focused at 1/3 down the window */
 	int cx = size / 2;
 	int cy = size / 3;

pui/textures.h

@@ -3,6 +3,7 @@
 
 enum {
 	TEX_BACKTILE,
+	TEX_BACKTILE2,
 	TEX_BACKGLOW,
 
 	TEX_SLIDER1,