gl_rasterizer: Use in-class member initializers where applicable

We can just assign to the members directly in these cases.

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -37,11 +37,6 @@ MICROPROFILE_DEFINE(OpenGL_Blits, "OpenGL", "Blits", MP_RGB(100, 100, 255));
 MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Mgmt", MP_RGB(100, 255, 100));
 
 RasterizerOpenGL::RasterizerOpenGL() {
-    has_ARB_buffer_storage = false;
-    has_ARB_direct_state_access = false;
-    has_ARB_separate_shader_objects = false;
-    has_ARB_vertex_attrib_binding = false;
-
     // Create sampler objects
     for (size_t i = 0; i < texture_samplers.size(); ++i) {
         texture_samplers[i].Create();
@@ -110,8 +105,6 @@ RasterizerOpenGL::RasterizerOpenGL() {
         glBindBufferBase(GL_UNIFORM_BUFFER, index, buffer.handle);
     }
 
-    accelerate_draw = AccelDraw::Disabled;
-
     glEnable(GL_BLEND);
 
     LOG_CRITICAL(Render_OpenGL, "Sync fixed function OpenGL state here!");

src/video_core/renderer_opengl/gl_rasterizer.h

@@ -135,10 +135,10 @@ private:
     /// Syncs the blend state to match the guest state
     void SyncBlendState();
 
-    bool has_ARB_buffer_storage;
-    bool has_ARB_direct_state_access;
-    bool has_ARB_separate_shader_objects;
-    bool has_ARB_vertex_attrib_binding;
+    bool has_ARB_buffer_storage = false;
+    bool has_ARB_direct_state_access = false;
+    bool has_ARB_separate_shader_objects = false;
+    bool has_ARB_vertex_attrib_binding = false;
 
     OpenGLState state;
 
@@ -167,5 +167,5 @@ private:
     void SetupShaders(u8* buffer_ptr, GLintptr buffer_offset);
 
     enum class AccelDraw { Disabled, Arrays, Indexed };
-    AccelDraw accelerate_draw;
+    AccelDraw accelerate_draw = AccelDraw::Disabled;
 };