GLES: Implement logic ops via fb fetch (#608)

* GLES: Implement logic ops via fb fetch

* Attempt to fix deprecated libglx-mesa0 package

* Update Qt_Build.yml

* GLES: Enable fb fetch instead of requiring it

* GLES: Add support for GL_ARM_shader_framebuffer_fetch

* Fix GL_EXT_shader_framebuffer_fetch behavior

include/renderer_gl/gl_driver.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+// Information about our OpenGL/OpenGL ES driver that we should keep track of
+// Stuff like whether specific extensions are supported, and potentially things like OpenGL context information
+namespace OpenGL {
+	struct Driver {
+		bool supportsExtFbFetch = false;
+		bool supportsArmFbFetch = false;
+
+		bool supportFbFetch() const { return supportsExtFbFetch || supportsArmFbFetch; }
+	};
+}  // namespace OpenGL

include/renderer_gl/renderer_gl.hpp

@@ -12,6 +12,7 @@
 #include "PICA/pica_vertex.hpp"
 #include "PICA/regs.hpp"
 #include "PICA/shader_gen.hpp"
+#include "gl_driver.hpp"
 #include "gl_state.hpp"
 #include "helpers.hpp"
 #include "logger.hpp"
@@ -82,6 +83,7 @@ class RendererGL final : public Renderer {
 	OpenGL::Program& getSpecializedShader();
 
 	PICA::ShaderGen::FragmentGenerator fragShaderGen;
+	OpenGL::Driver driverInfo;
 
 	MAKE_LOG_FUNCTION(log, rendererLogger)
 	void setupBlending();