Move shaders to separate files

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/resources/shaders/fshader.glsl

@@ -0,0 +1,21 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+// https://code.qt.io/cgit/qt/qtbase.git/tree/examples/opengl/cube/fshader.glsl
+#ifdef GL_ES
+// Set default precision to medium
+precision mediump int;
+precision mediump float;
+#endif
+
+uniform sampler2D texture;
+
+varying vec2 v_texcoord;
+
+void main()
+{
+    // Set fragment color from texture
+    //  gl_FragColor = texture2D(texture, v_texcoord);
+    vec4 texColor = texture2D(texture, v_texcoord);
+    if (texColor.a < 0.1) discard; // Optional: Discard fully transparent pixels
+    gl_FragColor = texColor;
+}

launcher/resources/shaders/shaders.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/shaders">
+        <file>vshader.glsl</file>
+        <file>fshader.glsl</file>
+    </qresource>
+</RCC>

launcher/resources/shaders/vshader.glsl

@@ -0,0 +1,26 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+// https://code.qt.io/cgit/qt/qtbase.git/tree/examples/opengl/cube/vshader.glsl
+#ifdef GL_ES
+// Set default precision to medium
+precision mediump int;
+precision mediump float;
+#endif
+
+uniform mat4 mvp_matrix;
+uniform mat4 model_matrix;
+
+attribute vec4 a_position;
+attribute vec2 a_texcoord;
+
+varying vec2 v_texcoord;
+
+void main()
+{
+    // Calculate vertex position in screen space
+    gl_Position = mvp_matrix * model_matrix * a_position;
+
+    // Pass texture coordinate to fragment shader
+    // Value will be automatically interpolated to fragments inside polygon faces
+    v_texcoord = a_texcoord;
+}